/* Theme: Dark Blue & Green */
        

        body {
            background-color: var(--bg-color);
            color: var(--sub-color);
            font-family: 'Roboto Mono', monospace;
            overflow-x: hidden;
            transition: background-color 0.3s, color 0.3s;
            padding-bottom: 2rem;
        }
        
        /* Dyslexic Mode Override */
        body.dyslexic-mode, 
        body.dyslexic-mode * {
            font-family: 'OpenDyslexic', sans-serif !important;
        }
        
        /* Adjust letter spacing for dyslexic font */
        body.dyslexic-mode .word {
            letter-spacing: 0.1em;
        }

        h1, h2, h3, h4, button, .ui-font { font-family: 'Roboto Mono', monospace; }

        /* Navigation */
        .nav-link {
            cursor: pointer;
            transition: all 0.2s ease;
            font-size: 0.86rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            color: color-mix(in srgb, var(--text-color) 72%, transparent);
            padding: 8px 13px;
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(160deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent),
                0 4px 12px color-mix(in srgb, #000000 14%, transparent);
            backdrop-filter: blur(6px) saturate(112%);
            -webkit-backdrop-filter: blur(6px) saturate(112%);
            line-height: 1;
        }
        .nav-link:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, #ffffff 20%, transparent);
            background:
                linear-gradient(160deg, color-mix(in srgb, #ffffff 10%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--text-color) 8%, transparent);
        }
        .nav-link.active {
            color: var(--main-color);
            background: color-mix(in srgb, var(--text-color) 14%, transparent);
            border-color: color-mix(in srgb, var(--text-color) 12%, transparent);
            box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--text-color) 6%, transparent);
        }
        .nav-link.is-loading {
            opacity: 0.75;
            pointer-events: none;
            cursor: wait;
        }
        
        .separator {
            width: 1px;
            height: 30px;
            background-color: color-mix(in srgb, var(--text-color) 14%, transparent);
            margin: 0 10px;
            opacity: 1;
        }

        /* Lyrics */
        .lyrics-line {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 0.25rem;
            min-height: 1.5em;
            align-items: baseline;
        }

        .translation-line {
            display: none;
            width: 100%;
            color: var(--trans-color);
            font-size: 0.75em;
            font-style: italic;
            margin-bottom: 1rem;
            padding-left: 8px;
            border-left: 2px solid var(--sub-alt-color);
            margin-top: 4px;
            font-family: 'Inter', sans-serif;
        }
        
        body.easy-mode .translation-line { display: block; }

        .stanza-break { height: 1.5em; width: 100%; }

        .word {
            position: relative;
            margin: 0 8px 4px 0;
            display: inline-block;
            border-bottom: 2px solid transparent;
            line-height: 1.5em;
            cursor: pointer;
            transition: border-color 0.2s;
        }
        
        .word:hover { border-bottom-color: var(--sub-color); }
        .word.active { border-bottom-color: var(--main-color); } /* Highlight active word */
        .word.rhythm-word { border-bottom-style: dashed; border-bottom-color: color-mix(in srgb, var(--sub-color) 50%, transparent); }
        .word.rhythm-word.active {
            border-bottom-style: solid;
            border-bottom-color: var(--main-color);
            box-shadow: 0 2px 0 0 var(--main-color);
        }
        .word.rhythm-word.music-active {
            background: color-mix(in srgb, var(--sub-color) 12%, transparent);
            border-radius: 4px;
        }
        .word.music-active {
            background: color-mix(in srgb, var(--sub-color) 10%, transparent);
            border-radius: 4px;
        }
        .word.rhythm-word.active.music-active {
            border-bottom-style: solid;
            border-bottom-color: var(--main-color);
            box-shadow: 0 2px 0 0 var(--main-color);
        }

        .letter { transition: color 0.1s ease; }
        .letter.correct { color: var(--text-color); }
        .letter.incorrect { color: var(--error-color); }
        .letter.extra { color: var(--error-extra-color); opacity: 0.7; }

        /* --- CLOZE MODE STYLES --- */
        .word.cloze-context .letter { color: var(--sub-color); opacity: 0.5; }
        .word.cloze-target .letter { color: transparent; border-bottom: 2px solid var(--sub-color); }
        .word.cloze-target.active .letter { color: transparent; }
        .word.cloze-target .letter.correct { color: var(--main-color); border-bottom-color: var(--main-color); }
        .word.cloze-target .letter.incorrect { color: var(--error-color); border-bottom-color: var(--error-color); }
        .word.cloze-target.revealed .letter { color: inherit; } 

        /* Caret (Cursor) */
        #caret {
            width: 3px;
            height: 1.5em;
            background-color: var(--caret-color);
            position: absolute;
            transition: left 0.08s ease, top 0.08s ease;
            animation: blink 1s infinite;
            z-index: 10;
            display: none; /* Hidden by default until game starts */
            border-radius: 2px;
            box-shadow: 0 0 4px var(--caret-color);
        }
        #music-caret {
            width: 2px;
            height: 1.5em;
            background-color: color-mix(in srgb, var(--sub-color) 95%, transparent);
            position: absolute;
            transition: left 0.15s linear, top 0.15s linear;
            z-index: 9;
            display: none;
            border-radius: 1px;
            box-shadow: 0 0 3px color-mix(in srgb, var(--sub-color) 70%, transparent);
        }
        @keyframes blink { 
            0%, 100% { opacity: 1; } 
            50% { opacity: 0.3; } 
        }

        .fade-in { animation: fadeIn 0.3s ease-in-out forwards; }
        @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

        /* Loader */
        .loader {
            border: 3px solid var(--sub-color);
            border-top: 3px solid var(--main-color);
            border-radius: 50%;
            width: 20px;
            height: 20px;
            animation: spin 1s linear infinite;
        }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

        .app-boot-overlay {
            position: fixed;
            inset: 0;
            z-index: 210;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            background: color-mix(in srgb, var(--bg-color) 82%, transparent);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }
        .app-boot-overlay.is-hidden {
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.28s ease;
        }
        .app-boot-card {
            width: min(420px, 92vw);
            border-radius: 14px;
            border: 1px solid color-mix(in srgb, var(--main-color) 36%, transparent);
            background: color-mix(in srgb, var(--sub-alt-color) 94%, var(--bg-color) 6%);
            box-shadow: 0 18px 44px color-mix(in srgb, #000000 38%, transparent);
            padding: 18px 18px 16px;
            display: grid;
            gap: 10px;
        }
        .app-boot-loader {
            width: 28px;
            height: 28px;
            border-width: 3px;
        }
        .app-boot-title {
            color: var(--text-color);
            font-size: 1.08rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .app-boot-message {
            color: var(--sub-color);
            font-size: 0.82rem;
            min-height: 1.1rem;
        }
        .app-boot-progress-track {
            width: 100%;
            height: 6px;
            border-radius: 999px;
            background: color-mix(in srgb, var(--sub-color) 20%, transparent);
            overflow: hidden;
        }
        .app-boot-progress-fill {
            width: 8%;
            height: 100%;
            border-radius: inherit;
            background: linear-gradient(90deg, color-mix(in srgb, var(--main-color) 72%, #ffffff 28%), var(--main-color));
            transition: width 0.26s ease;
        }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: transparent; }
        ::-webkit-scrollbar-thumb { background: var(--sub-color); border-radius: 3px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--main-color); }

        .hidden-input {
            opacity: 0;
            position: fixed;
            top: 50vh;
            left: 50vw;
            transform: translate(-50%, -50%);
            width: 1px;
            height: 1px;
            z-index: -1;
            pointer-events: none;
        }
        
        /* Modal Overlay */
        #modal-overlay, #restart-modal-overlay, #about-modal-overlay, #settings-modal-overlay, #practice-modal-overlay, #profile-modal-overlay, #onboarding-overlay, #spotify-link-modal-overlay {
            background-color: color-mix(in srgb, var(--bg-color) 85%, transparent);
            backdrop-filter: blur(4px);
        }
        #settings-modal-overlay {
            z-index: 90 !important;
        }
        #artist-songs-modal-overlay {
            z-index: 90 !important;
        }
        .song-launch-overlay {
            position: fixed;
            inset: 0;
            z-index: 70;
            display: flex;
            align-items: center;
            justify-content: center;
            background: color-mix(in srgb, var(--bg-color) 35%, transparent);
            backdrop-filter: blur(4px);
            padding: 18px;
        }
        .song-launch-card {
            width: min(560px, 92vw);
            border: 1px solid color-mix(in srgb, var(--main-color) 40%, transparent);
            border-radius: 12px;
            background: color-mix(in srgb, var(--sub-alt-color) 94%, var(--bg-color) 6%);
            box-shadow: 0 16px 40px color-mix(in srgb, var(--bg-color) 40%, transparent);
            padding: 16px;
            display: grid;
            gap: 8px;
        }
        .song-launch-kicker {
            color: var(--sub-color);
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }
        .song-launch-title {
            color: var(--text-color);
            font-size: 1.45rem;
            font-weight: 700;
            line-height: 1.1;
        }
        .song-launch-artist {
            color: var(--main-color);
            font-size: 0.9rem;
            font-weight: 700;
        }
        .song-launch-meter {
            height: 6px;
            border-radius: 999px;
            background: color-mix(in srgb, var(--sub-color) 25%, transparent);
            overflow: hidden;
            margin-top: 2px;
        }
        .song-launch-progress {
            height: 100%;
            width: 0%;
            border-radius: inherit;
            background: var(--main-color);
            transition: width 0.25s ease;
        }
        .song-launch-status-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        .song-launch-status {
            color: var(--sub-color);
            font-size: 0.8rem;
        }
        .command-palette-overlay {
            position: fixed;
            inset: 0;
            z-index: 95;
            display: flex;
            align-items: flex-start;
            justify-content: center;
            padding: clamp(60px, 12vh, 120px) 18px 24px;
            background: color-mix(in srgb, var(--bg-color) 84%, transparent);
            backdrop-filter: blur(6px);
        }
        .command-palette-panel {
            width: min(760px, 94vw);
            border: 1px solid color-mix(in srgb, var(--main-color) 34%, transparent);
            border-radius: 12px;
            background: color-mix(in srgb, var(--sub-alt-color) 94%, var(--bg-color) 6%);
            box-shadow: 0 20px 44px color-mix(in srgb, var(--bg-color) 45%, transparent);
            padding: 10px;
            display: grid;
            gap: 8px;
        }
        .command-palette-input-row {
            display: grid;
            grid-template-columns: auto 1fr;
            align-items: center;
            gap: 8px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 26%, transparent);
            padding: 8px 10px;
        }
        .command-palette-icon {
            color: var(--sub-color);
            font-size: 0.92rem;
            line-height: 1;
        }
        .command-palette-input {
            width: 100%;
            border: 0;
            outline: none;
            background: transparent;
            color: var(--text-color);
            font-size: 1.02rem;
            letter-spacing: 0.01em;
        }
        .command-palette-input::placeholder {
            color: color-mix(in srgb, var(--sub-color) 88%, transparent);
        }
        .command-palette-list {
            display: grid;
            gap: 6px;
            max-height: min(48vh, 360px);
            overflow: auto;
            padding-right: 2px;
        }
        .command-palette-item {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--sub-color) 18%, transparent);
            border-radius: 9px;
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
            color: var(--text-color);
            text-align: left;
            padding: 9px 10px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            cursor: pointer;
            transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease;
        }
        .command-palette-item:hover,
        .command-palette-item.active {
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
            color: var(--text-color);
        }
        .command-palette-item-title {
            font-size: 0.9rem;
            font-weight: 700;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .command-palette-item-meta {
            font-size: 0.64rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--sub-color);
            border: 1px solid color-mix(in srgb, var(--sub-color) 34%, transparent);
            border-radius: 999px;
            padding: 2px 6px;
            line-height: 1.1;
            flex: 0 0 auto;
        }
        .command-palette-hint {
            font-size: 0.68rem;
            color: var(--sub-color);
            letter-spacing: 0.03em;
            text-align: right;
        }
        #modal-overlay > div,
        #restart-modal-overlay > div,
        #about-modal-overlay > div,
        #settings-modal-overlay > div,
        #practice-modal-overlay > div,
        #profile-modal-overlay > div,
        #onboarding-overlay > div,
        #spotify-link-modal-overlay > div,
        #artist-songs-modal-overlay > div {
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
        }

        .app-modal-card {
            width: min(760px, calc(100vw - 24px));
            max-height: min(92vh, 920px);
            margin: 12px;
            border: 1px solid color-mix(in srgb, var(--main-color) 45%, transparent);
            border-radius: 14px;
            background: color-mix(in srgb, var(--sub-alt-color) 96%, var(--bg-color) 4%);
            box-shadow: 0 20px 48px color-mix(in srgb, var(--bg-color) 45%, transparent);
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        .app-modal-card--profile {
            width: min(1080px, calc(100vw - 24px));
        }
        .app-modal-card--settings {
            width: min(700px, calc(100vw - 24px));
        }
        .app-modal-card--info {
            width: min(640px, calc(100vw - 24px));
        }
        .app-modal-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: 10px;
            padding: 18px 20px 14px;
            border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 15%, transparent);
        }
        .app-modal-title-wrap {
            display: grid;
            gap: 3px;
        }
        .app-modal-kicker {
            color: var(--sub-color);
            font-size: 0.7rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            font-weight: 700;
        }
        .app-modal-title {
            color: var(--text-color);
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.12;
        }
        .app-modal-close {
            border: 1px solid color-mix(in srgb, var(--sub-color) 32%, transparent);
            border-radius: 999px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--sub-color);
            padding: 6px 11px;
            font-size: 0.78rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            line-height: 1;
            cursor: pointer;
            transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
        }
        .app-modal-close:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
            background: color-mix(in srgb, var(--main-color) 8%, transparent);
        }
        .app-modal-close-icon {
            color: var(--main-color);
            font-size: 1rem;
            font-weight: 700;
        }
        .app-modal-close--icon-only {
            width: 32px;
            height: 32px;
            padding: 0;
            justify-content: center;
            border-color: color-mix(in srgb, var(--sub-color) 24%, transparent);
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
        }
        .app-modal-close--icon-only .app-modal-close-icon {
            font-size: 0.92rem;
            opacity: 0.92;
        }
        .app-modal-body {
            padding: 14px 20px 18px;
            overflow-y: auto;
        }
        .modal-surface-block {
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            border-radius: 10px;
            padding: 12px;
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
        }
        .about-powered-list {
            margin: 0;
            padding-left: 18px;
            display: grid;
            gap: 5px;
        }
        .settings-modal-body {
            display: grid;
            gap: 0;
        }
        .settings-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 8px 0;
            border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 18%, transparent);
        }
        .settings-switch {
            border: 0;
            background: transparent;
            color: var(--sub-color);
            display: inline-flex;
            align-items: center;
            cursor: pointer;
            padding: 2px 0;
        }
        .settings-switch-track {
            width: 40px;
            height: 22px;
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 35%, transparent);
            background: color-mix(in srgb, var(--bg-color) 26%, transparent);
            position: relative;
            transition: all 0.2s ease;
        }
        .settings-switch-thumb {
            position: absolute;
            top: 2px;
            left: 2px;
            width: 16px;
            height: 16px;
            border-radius: 999px;
            background: color-mix(in srgb, var(--text-color) 88%, transparent);
            transition: transform 0.2s ease, background 0.2s ease;
        }
        .settings-switch.is-on .settings-switch-track {
            border-color: color-mix(in srgb, var(--main-color) 55%, transparent);
            background: color-mix(in srgb, var(--main-color) 28%, transparent);
        }
        .settings-switch.is-on .settings-switch-thumb {
            transform: translateX(18px);
            background: var(--main-color);
        }
        .settings-theme-search {
            width: 100%;
            margin-bottom: 12px;
            border-radius: 10px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
            color: var(--text-color);
            padding: 10px 12px;
            font-size: 0.9rem;
            transition: border-color 0.2s ease, background 0.2s ease;
        }
        .settings-theme-search::placeholder {
            color: var(--sub-color);
            opacity: 0.9;
        }
        .settings-theme-search:focus {
            outline: none;
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
            background: color-mix(in srgb, var(--bg-color) 22%, transparent);
        }
        .settings-row:last-child {
            border-bottom: 0;
            padding-bottom: 0;
        }
        .settings-row:first-of-type {
            padding-top: 0;
        }
        .settings-shortcuts-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 8px;
        }
        .account-modal-body {
            display: grid;
            gap: 12px;
        }
        #auth-user-view:not(.hidden) {
            display: grid;
            gap: 12px;
        }
        .account-sections-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 10px;
        }
        .feature-temporary-hidden {
            display: none !important;
        }
        .onboarding-top-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 10px;
        }
        .onboarding-step-pill {
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--main-color);
            border: 1px solid color-mix(in srgb, var(--main-color) 45%, transparent);
            border-radius: 999px;
            padding: 4px 10px;
        }
        .onboarding-controls {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }
        #auth-stats-section.account-panel-section,
        #auth-duel-section.account-panel-section {
            grid-column: 1 / -1;
        }
        .daily-challenge-card {
            border: 1px solid color-mix(in srgb, var(--main-color) 35%, transparent);
            background: color-mix(in srgb, var(--bg-color) 10%, var(--main-color) 6%);
            border-radius: 12px;
            padding: 12px;
            display: grid;
            gap: 8px;
        }
        .daily-challenge-card--popover {
            width: min(320px, 72vw);
            padding: 8px 10px;
            gap: 5px;
            border-color: color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
        }
        .daily-challenge-card--popover .daily-challenge-kicker {
            font-size: 0.58rem;
        }
        .daily-challenge-card--popover .daily-challenge-title {
            font-size: 0.9rem;
            line-height: 1.15;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .daily-challenge-card--popover .daily-challenge-date,
        .daily-challenge-card--popover .daily-challenge-progress,
        .daily-challenge-card--popover .daily-challenge-reward,
        .daily-challenge-card--popover .daily-challenge-desc {
            font-size: 0.74rem;
        }
        .daily-challenge-card--popover .daily-challenge-desc {
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .daily-challenge-card--popover .daily-challenge-actions .auth-friend-btn,
        .daily-challenge-card--popover .daily-challenge-actions .auth-submit-btn {
            padding: 4px 10px;
            font-size: 0.7rem;
            line-height: 1.2;
        }
        .daily-challenge-head {
            display: flex;
            align-items: start;
            justify-content: space-between;
            gap: 8px;
        }
        .daily-challenge-kicker {
            font-size: 0.66rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--sub-color);
        }
        .daily-challenge-title {
            font-size: 0.98rem;
            font-weight: 700;
            color: var(--main-color);
        }
        .daily-challenge-date,
        .daily-challenge-progress,
        .daily-challenge-desc,
        .daily-challenge-reward {
            color: var(--sub-color);
            font-size: 0.8rem;
        }
        .daily-challenge-actions {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
        }
        @media (max-width: 760px) {
            .daily-challenge-card--popover {
                width: min(300px, 86vw);
            }
        }
        .leaderboard-shell {
            display: grid;
            grid-template-columns: 260px minmax(0, 1fr);
            gap: 14px;
            align-items: start;
        }
        .leaderboard-side {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 12px;
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
            padding: 12px;
            display: grid;
            gap: 10px;
            position: sticky;
            top: 92px;
        }
        .leaderboard-side-group {
            display: grid;
            gap: 8px;
        }
        .leaderboard-side-divider {
            height: 1px;
            background: color-mix(in srgb, var(--sub-color) 22%, transparent);
        }
        .leaderboard-side-btn {
            border: 1px solid color-mix(in srgb, var(--main-color) 45%, transparent);
            background: color-mix(in srgb, var(--main-color) 18%, transparent);
            color: var(--main-color);
            border-radius: 10px;
            font-size: 0.84rem;
            text-transform: lowercase;
            letter-spacing: 0.02em;
            font-weight: 700;
            text-align: left;
            padding: 10px 12px;
            cursor: pointer;
            transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
        }
        .leaderboard-side-btn.active {
            border-color: color-mix(in srgb, var(--main-color) 60%, transparent);
            background: color-mix(in srgb, var(--main-color) 28%, transparent);
            color: var(--text-color);
        }
        .leaderboard-side-btn.muted {
            border-color: color-mix(in srgb, var(--sub-color) 26%, transparent);
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
            color: var(--sub-color);
        }
        .leaderboard-side-btn:disabled {
            cursor: default;
            opacity: 0.85;
        }
        .leaderboard-main {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 12px;
            background: color-mix(in srgb, var(--bg-color) 12%, transparent);
            padding: 14px;
            display: grid;
            gap: 12px;
        }
        .leaderboard-main-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            flex-wrap: wrap;
            border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            padding-bottom: 8px;
        }
        .leaderboard-main-title {
            font-size: clamp(1.3rem, 3vw, 2.15rem);
            line-height: 1.1;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text-color);
        }
        .leaderboard-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .leaderboard-refresh-btn {
            border: 1px solid color-mix(in srgb, var(--main-color) 42%, transparent);
            background: color-mix(in srgb, var(--main-color) 14%, transparent);
            color: var(--main-color);
            border-radius: 8px;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 8px 12px;
            cursor: pointer;
            transition: background 0.18s ease, color 0.18s ease;
        }
        .leaderboard-refresh-btn:hover {
            background: color-mix(in srgb, var(--main-color) 22%, transparent);
            color: var(--text-color);
        }
        .leaderboard-main-meta {
            color: var(--sub-color);
            font-size: 0.82rem;
            letter-spacing: 0.03em;
        }
        .leaderboard-table {
            display: grid;
            gap: 8px;
        }
        .leaderboard-table-body {
            display: grid;
            gap: 8px;
        }
        .leaderboard-row {
            display: grid;
            grid-template-columns: 56px minmax(180px, 2fr) repeat(5, minmax(70px, 1fr));
            align-items: center;
            gap: 10px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 18%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            padding: 10px 12px;
        }
        .leaderboard-row-head {
            border-color: transparent;
            background: color-mix(in srgb, var(--bg-color) 40%, transparent);
            color: var(--sub-color);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            font-size: 0.62rem;
            font-weight: 700;
            border-radius: 8px;
        }
        .leaderboard-row-item {
            color: var(--text-color);
            font-size: 0.92rem;
        }
        .leaderboard-row-item.rank {
            color: var(--main-color);
            font-weight: 800;
        }
        .leaderboard-row-item.player {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            min-width: 0;
            font-weight: 700;
        }
        .leaderboard-player-avatar {
            width: 24px;
            height: 24px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid color-mix(in srgb, var(--main-color) 40%, transparent);
            color: var(--main-color);
            background: color-mix(in srgb, var(--main-color) 14%, transparent);
            font-size: 0.72rem;
            font-weight: 800;
            flex: 0 0 24px;
        }
        .leaderboard-player-name {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .leaderboard-row-item.metric {
            text-align: right;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.01em;
        }
        .leaderboard-row.top {
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
            background: color-mix(in srgb, var(--main-color) 10%, transparent);
        }
        @media (max-width: 1120px) {
            .leaderboard-shell {
                grid-template-columns: 1fr;
            }
            .leaderboard-side {
                position: static;
                top: auto;
            }
        }
        @media (max-width: 900px) {
            .leaderboard-row,
            .leaderboard-row-head {
                grid-template-columns: 48px minmax(150px, 2fr) repeat(3, minmax(64px, 1fr));
            }
            .leaderboard-row > :nth-child(6),
            .leaderboard-row > :nth-child(7),
            .leaderboard-row-head > :nth-child(6),
            .leaderboard-row-head > :nth-child(7) {
                display: none;
            }
        }
        .profile-hub-share-row {
            margin-top: 8px;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .profile-hub-share-meta {
            font-size: 0.72rem;
            color: var(--sub-color);
        }
        #auth-friends-section.account-panel-section {
            grid-column: 1 / -1;
        }
        .account-panel-section {
            margin-top: 0 !important;
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 10px;
            padding: 10px;
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
        }
        #auth-stats-section.account-panel-section {
            padding: 10px;
        }
        #auth-actions-section.account-panel-section .auth-submit-btn,
        #auth-actions-section.account-panel-section .auth-delete-btn {
            width: 100%;
        }
        #spotify-section.account-panel-section {
            margin-top: 0 !important;
        }
        .auth-friend-add-row > .auth-submit-btn:only-child {
            grid-column: 1 / -1;
        }
        .friends-utilities-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
            gap: 10px;
            align-items: start;
        }
        .account-utility-stack {
            display: grid;
            gap: 8px;
        }
        .utility-disclosure {
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 15%, transparent);
            overflow: hidden;
        }
        .utility-disclosure > summary {
            list-style: none;
            cursor: pointer;
            color: var(--sub-color);
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            font-weight: 700;
            padding: 10px 11px;
            border-bottom: 1px solid transparent;
            transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
            display: grid;
            grid-template-columns: 1fr auto auto;
            gap: 8px;
            align-items: center;
        }
        .utility-summary-title {
            color: inherit;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .utility-summary-meta {
            font-size: 0.62rem;
            letter-spacing: 0.03em;
            text-transform: none;
            opacity: 0.8;
            white-space: nowrap;
            display: none;
        }
        .utility-summary-chevron {
            font-size: 0.9rem;
            line-height: 1;
            transition: transform 0.2s ease;
        }
        .utility-disclosure > summary::-webkit-details-marker {
            display: none;
        }
        .utility-disclosure[open] > summary {
            color: var(--text-color);
            border-bottom-color: color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 14%, transparent);
        }
        .utility-disclosure[open] .utility-summary-chevron {
            transform: rotate(180deg);
        }
        .utility-disclosure-danger > summary {
            color: var(--error-soft-text);
        }
        .utility-disclosure-danger[open] > summary {
            color: color-mix(in srgb, var(--error-color) 55%, var(--text-color) 45%);
            border-bottom-color: color-mix(in srgb, var(--error-color) 25%, transparent);
        }
        .utility-panel {
            padding: 10px;
            display: grid;
            gap: 8px;
        }
        .utility-panel-title {
            color: var(--sub-color);
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 700;
        }
        .utility-mini-stats-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 7px;
        }
        .utility-mini-stat {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
            padding: 8px;
            display: grid;
            gap: 3px;
        }
        .utility-mini-stat span {
            color: var(--sub-color);
            font-size: 0.64rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .utility-mini-stat strong {
            color: var(--text-color);
            font-size: 0.88rem;
            line-height: 1.1;
        }
        .utility-compare-list {
            max-height: 178px;
            padding-right: 2px;
        }
        .utility-compare-list .auth-friend-actions {
            display: grid;
            gap: 4px;
            justify-items: end;
            align-items: center;
        }
        .utility-compare-list .auth-recent-score {
            font-size: 0.75rem;
        }
        .utility-panel .auth-submit-btn,
        .utility-panel .auth-friend-btn,
        .utility-panel .auth-delete-btn {
            text-transform: none;
            letter-spacing: 0.02em;
            font-size: 0.78rem;
            padding: 9px 10px;
            border-radius: 7px;
        }
        .utility-panel .auth-delete-btn {
            background: color-mix(in srgb, var(--error-color) 8%, transparent);
        }
        .utility-panel .auth-recent-list {
            max-height: 120px;
        }
        
        /* Transparent Overlay for Popover (Click outside to close) */
        #popover-overlay { background-color: transparent; }

        /* Context Menu Popover */
        .word-popover {
            position: absolute;
            background: var(--sub-alt-color);
            border: 1px solid var(--sub-color);
            border-radius: 8px;
            padding: 0;
            min-width: 240px;
            max-width: 320px;
            box-shadow: 0 4px 15px color-mix(in srgb, var(--bg-color) 50%, transparent);
            z-index: 100;
            display: none;
            flex-direction: column;
            overflow: hidden;
            font-family: 'Inter', sans-serif;
            animation: popIn 0.1s ease-out;
        }
        @keyframes popIn {
            from { opacity: 0; transform: scale(0.95); }
            to { opacity: 1; transform: scale(1); }
        }
        .popover-header {
            padding: 10px 15px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 10%, transparent);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .popover-actions {
            display: flex;
            padding: 5px;
            background: color-mix(in srgb, var(--bg-color) 30%, transparent);
            gap: 5px;
        }
        .popover-btn {
            flex: 1;
            padding: 8px;
            font-size: 0.75rem;
            text-align: center;
            color: var(--sub-color);
            border-radius: 4px;
            border: 1px solid color-mix(in srgb, #ffffff 10%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 5%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 16%, transparent);
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            transition: all 0.2s;
            cursor: pointer;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .popover-btn:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, #ffffff 18%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 8%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--bg-color) 24%, transparent);
        }
        .popover-btn.active {
            background: var(--bg-color);
            color: var(--main-color);
            border-bottom: 2px solid var(--main-color);
            border-radius: 4px 4px 0 0;
        }
        .popover-body {
            padding: 15px;
            font-size: 0.85rem;
            color: var(--text-color);
            max-height: 200px;
            overflow-y: auto;
            line-height: 1.5;
        }
        .def-part-speech { color: var(--main-color); font-size: 0.7rem; font-style: italic; margin-right: 5px; }

        /* Toast */
        #toast-container { position: fixed; bottom: 30px; right: 30px; z-index: 100; }
        .toast {
            background: var(--sub-alt-color);
            color: var(--text-color);
            padding: 12px 20px;
            border-radius: 4px;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 12px color-mix(in srgb, var(--bg-color) 40%, transparent);
            margin-top: 10px;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
            border-left: 3px solid var(--main-color);
        }
        .toast-message {
            max-width: min(55vw, 360px);
            white-space: normal;
            line-height: 1.35;
        }
        .toast-action {
            margin-left: 8px;
            border: 1px solid color-mix(in srgb, var(--main-color) 54%, transparent);
            background: color-mix(in srgb, var(--main-color) 14%, transparent);
            color: var(--main-color);
            border-radius: 6px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            padding: 5px 9px;
            cursor: pointer;
            transition: background 0.18s ease, color 0.18s ease, opacity 0.18s ease;
        }
        .toast-action:hover {
            background: color-mix(in srgb, var(--main-color) 22%, transparent);
            color: var(--text-color);
        }
        .toast-action:disabled {
            opacity: 0.6;
            cursor: default;
        }
        .toast.show { opacity: 1; transform: translateY(0); }
        .toast.error { border-left-color: var(--error-color); }
        .toast.achievement { border-left-color: var(--gold-color); }

        /* Layout Utilities */
        header {
            width: 100%;
            max-width: none !important;
            margin: 0 0 16px 0 !important;
            padding: 14px 24px !important;
            border-bottom: 1px solid color-mix(in srgb, var(--text-color) 12%, transparent);
            background: color-mix(in srgb, var(--theme-c1) 94%, #000000 6%);
            position: sticky;
            top: 0;
            z-index: 60;
            backdrop-filter: blur(8px);
        }
        main {
            width: min(1160px, calc(100vw - 24px));
            max-width: 1160px !important;
            padding-top: 8px !important;
            padding-bottom: 28px !important;
            border-radius: 12px 12px 0 0;
            background: color-mix(in srgb, var(--theme-c1) 88%, #000000 12%);
        }
        #setup-area {
            width: 100%;
        }
        .header-brand h1 {
            font-size: 1.4rem;
            line-height: 1;
            letter-spacing: -0.02em;
        }
        .header-brand span {
            font-weight: 700;
            opacity: 0.92;
        }
        .header-actions {
            min-height: 56px;
            padding: 6px 12px;
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, var(--text-color) 14%, transparent);
            background: color-mix(in srgb, var(--text-color) 5%, transparent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            box-sizing: border-box;
        }
        .header-actions > * {
            align-self: center;
        }
        .btn-ghost {
            width: 38px;
            height: 38px;
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, #ffffff 14%, transparent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            line-height: 0;
            color: color-mix(in srgb, var(--text-color) 72%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 8%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--bg-color) 22%, transparent);
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #ffffff 12%, transparent),
                0 5px 14px color-mix(in srgb, #000000 14%, transparent);
            backdrop-filter: blur(6px) saturate(112%);
            -webkit-backdrop-filter: blur(6px) saturate(112%);
            box-sizing: border-box;
        }
        .btn-ghost svg {
            width: 18px;
            height: 18px;
            display: block;
            margin: 0;
            transform: translateY(0);
        }
        .btn-ghost:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, #ffffff 24%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 11%, transparent), color-mix(in srgb, #000000 6%, transparent)),
                color-mix(in srgb, var(--text-color) 10%, transparent);
        }
        .config-bar {
            background-color: color-mix(in srgb, var(--text-color) 7%, transparent);
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, var(--text-color) 8%, transparent);
            padding: 6px 10px;
            min-height: 56px;
            height: auto;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            margin-bottom: 2rem;
            box-shadow: 0 10px 24px color-mix(in srgb, var(--bg-color) 30%, transparent);
        }
        .mode-group { display: flex; gap: 8px; }
        .mode-group.mode-group--tabs {
            position: relative;
            gap: 6px;
            align-items: center;
        }
        .mode-group.mode-group--tabs .nav-link {
            position: relative;
            z-index: 2;
            border: 1px solid transparent;
            background: transparent;
            border-color: transparent;
            box-shadow: none;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
        }
        .mode-group.mode-group--tabs .nav-link:hover,
        .mode-group.mode-group--tabs .nav-link.active {
            background: transparent;
            border-color: transparent;
            box-shadow: none;
        }
        .mode-group.mode-group--tabs .nav-link.active {
            color: var(--main-color);
        }
        .nav-liquid-indicator {
            position: absolute;
            top: 2px;
            left: 0;
            height: calc(100% - 4px);
            border-radius: 999px;
            pointer-events: none;
            z-index: 1;
            background:
                linear-gradient(168deg, color-mix(in srgb, #fff 16%, transparent), color-mix(in srgb, #fff 6%, transparent) 42%, color-mix(in srgb, #000 8%, transparent)),
                radial-gradient(140% 130% at 22% 16%, color-mix(in srgb, var(--main-color) 18%, transparent), transparent 62%);
            border: 1px solid color-mix(in srgb, #fff 20%, transparent);
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #fff 24%, transparent),
                inset 0 -1px 0 color-mix(in srgb, #000 18%, transparent),
                0 8px 18px color-mix(in srgb, #000 24%, transparent);
            backdrop-filter: blur(14px) saturate(128%);
            -webkit-backdrop-filter: blur(14px) saturate(128%);
            transform: translateX(0);
            width: 0;
            opacity: 0;
            transition:
                transform 360ms cubic-bezier(0.2, 0.9, 0.25, 1),
                width 360ms cubic-bezier(0.2, 0.9, 0.25, 1),
                opacity 180ms ease;
        }
        .mode-group.mode-group--tabs.tabs-liquid-ready .nav-liquid-indicator {
            opacity: 0.9;
        }
        .mode-group.mode-group--switcher {
            position: relative;
            gap: 6px;
            align-items: center;
        }
        .mode-group.mode-group--switcher #mode-normal,
        .mode-group.mode-group--switcher #mode-cloze,
        .mode-group.mode-group--switcher #mode-rhythm {
            position: relative;
            z-index: 2;
            border: 1px solid transparent;
            background: transparent;
            border-color: transparent;
            box-shadow: none;
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            transition: color 0.24s ease;
        }
        .mode-group.mode-group--switcher #mode-normal:hover,
        .mode-group.mode-group--switcher #mode-cloze:hover,
        .mode-group.mode-group--switcher #mode-rhythm:hover,
        .mode-group.mode-group--switcher #mode-normal.active,
        .mode-group.mode-group--switcher #mode-cloze.active,
        .mode-group.mode-group--switcher #mode-rhythm.active {
            background: transparent;
            border-color: transparent;
            box-shadow: none;
        }
        .mode-group.mode-group--switcher #mode-normal.active,
        .mode-group.mode-group--switcher #mode-cloze.active,
        .mode-group.mode-group--switcher #mode-rhythm.active {
            color: var(--main-color);
        }
        .mode-liquid-indicator {
            position: absolute;
            top: 2px;
            left: 0;
            height: calc(100% - 4px);
            border-radius: 999px;
            pointer-events: none;
            z-index: 1;
            background:
                linear-gradient(168deg, color-mix(in srgb, #fff 16%, transparent), color-mix(in srgb, #fff 6%, transparent) 42%, color-mix(in srgb, #000 8%, transparent)),
                radial-gradient(140% 130% at 22% 16%, color-mix(in srgb, var(--main-color) 18%, transparent), transparent 62%);
            border: 1px solid color-mix(in srgb, #fff 20%, transparent);
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #fff 24%, transparent),
                inset 0 -1px 0 color-mix(in srgb, #000 18%, transparent),
                0 8px 18px color-mix(in srgb, #000 24%, transparent);
            backdrop-filter: blur(14px) saturate(128%);
            -webkit-backdrop-filter: blur(14px) saturate(128%);
            transform: translateX(0);
            width: 0;
            opacity: 0;
            transition:
                transform 360ms cubic-bezier(0.2, 0.9, 0.25, 1),
                width 360ms cubic-bezier(0.2, 0.9, 0.25, 1),
                opacity 180ms ease;
        }
        .mode-group.mode-group--switcher.mode-liquid-ready .mode-liquid-indicator {
            opacity: 0.92;
        }
        .nav-icon { width: 18px; height: 18px; fill: currentColor; }
        .mode-session-prefs {
            position: relative;
            display: inline-flex;
            align-items: center;
            z-index: 2;
        }
        .mode-session-prefs-btn {
            width: 34px;
            height: 34px;
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, #ffffff 14%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 8%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--bg-color) 22%, transparent);
            color: color-mix(in srgb, var(--text-color) 72%, transparent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent),
                0 4px 12px color-mix(in srgb, #000000 12%, transparent);
            backdrop-filter: blur(6px) saturate(112%);
            -webkit-backdrop-filter: blur(6px) saturate(112%);
            transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
        }
        .mode-session-prefs-btn:hover,
        .mode-session-prefs-btn[aria-expanded="true"] {
            color: var(--main-color);
            border-color: color-mix(in srgb, #ffffff 22%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 10%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--main-color) 9%, transparent);
        }
        .mode-session-prefs-btn svg {
            width: 16px;
            height: 16px;
            fill: currentColor;
            display: block;
        }
        .mode-session-prefs-popover {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            min-width: 170px;
            display: grid;
            gap: 5px;
            padding: 10px;
            border-radius: 10px;
            border: 1px solid color-mix(in srgb, var(--text-color) 14%, transparent);
            background: color-mix(in srgb, var(--bg-color) 86%, transparent);
            backdrop-filter: blur(8px);
            box-shadow: 0 10px 20px color-mix(in srgb, var(--bg-color) 50%, transparent);
            z-index: 25;
        }
        .mode-session-prefs-title {
            font-size: 0.64rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: color-mix(in srgb, var(--text-color) 58%, transparent);
            margin-bottom: 2px;
        }
        .mode-session-prefs-option {
            width: 100%;
            border: 1px solid transparent;
            border-radius: 8px;
            background: transparent;
            color: color-mix(in srgb, var(--text-color) 84%, transparent);
            font-size: 0.78rem;
            font-weight: 700;
            text-align: left;
            padding: 8px 9px;
            cursor: pointer;
            transition: all 0.18s ease;
        }
        .mode-session-prefs-option:hover {
            background: color-mix(in srgb, var(--text-color) 8%, transparent);
            color: var(--text-color);
        }
        .mode-session-prefs-option.active {
            border-color: color-mix(in srgb, var(--main-color) 48%, transparent);
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
            color: var(--main-color);
        }
        
        /* Stats Header Layout */
        .stats-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end; 
            width: 100%;
            border-bottom: 1px solid var(--sub-color);
            padding-bottom: 1rem;
            margin-bottom: 2rem;
        }

        .stats-info { display: flex; gap: 3rem; }

        .stat-group { display: flex; flex-direction: column; align-items: flex-start; }
        .stat-label { font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--sub-color); margin-bottom: 2px; }
        .stat-value { line-height: 1; font-family: 'Roboto Mono', monospace; }
        .stat-value.large { font-size: 2.5rem; font-weight: 700; color: var(--main-color); }
        .stat-value.medium { font-size: 1.5rem; font-weight: 500; color: var(--text-color); }
        .text-success { color: var(--success-color); }
        
        /* Toggle Icons */
        .header-toggle-btn {
            color: var(--sub-color);
            transition: all 0.2s;
            padding: 6px;
            border-radius: 8px;
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent);
            backdrop-filter: blur(5px) saturate(108%);
            -webkit-backdrop-filter: blur(5px) saturate(108%);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .header-toggle-btn:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, #ffffff 20%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 9%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--text-color) 8%, transparent);
        }
        .header-toggle-btn.active { color: var(--main-color); }
        .header-avatar-btn {
            width: 48px;
            height: 48px;
            border-radius: 999px;
            border: 2px solid color-mix(in srgb, var(--sub-color) 35%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            padding: 0;
            cursor: pointer;
            overflow: hidden;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .header-avatar-btn:hover {
            border-color: color-mix(in srgb, var(--main-color) 60%, transparent);
            box-shadow: 0 0 0 2px color-mix(in srgb, var(--main-color) 25%, transparent);
        }
        .header-avatar-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .header-status-stack {
            display: grid;
            gap: 4px;
            justify-items: end;
            min-width: 120px;
            align-self: center;
        }
        .header-status-pill {
            border: 1px solid color-mix(in srgb, var(--main-color) 40%, transparent);
            color: var(--main-color);
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
            border-radius: 999px;
            font-size: 0.62rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            padding: 3px 8px;
            line-height: 1;
            white-space: nowrap;
        }
        .header-status-pill.muted {
            border-color: color-mix(in srgb, var(--sub-color) 30%, transparent);
            color: var(--sub-color);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
        }

        .video-pip-panel {
            position: fixed;
            right: 14px;
            bottom: 14px;
            width: min(250px, 72vw);
            border: 1px solid var(--sub-color);
            background: var(--sub-alt-color);
            border-radius: 8px;
            overflow: hidden;
            z-index: 80;
            box-shadow: 0 12px 30px color-mix(in srgb, var(--bg-color) 45%, transparent);
        }
        @media (min-width: 1100px) {
            #game-area.video-pip-open #words-wrapper {
                padding-right: 0;
            }
            #game-area.video-pip-open #words {
                width: calc(100% - 300px);
                max-width: calc(100% - 300px);
            }
        }
        @media (min-width: 900px) and (max-width: 1099px) {
            #game-area.video-pip-open #words {
                width: calc(100% - 248px);
                max-width: calc(100% - 248px);
            }
        }
        .video-pip-header {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 6px 10px;
            background: color-mix(in srgb, var(--bg-color) 25%, transparent);
            color: var(--sub-color);
        }
        .video-pip-link {
            color: var(--main-color);
            font-size: 11px;
            text-decoration: none;
            margin-left: auto;
        }
        .video-pip-link-btn {
            border: 0;
            background: transparent;
            cursor: pointer;
            padding: 0;
            margin-left: 0;
        }
        .video-pip-link:hover { text-decoration: underline; }
        .video-pip-close {
            margin-left: auto;
            color: var(--sub-color);
            font-size: 12px;
            border: 0;
            background: transparent;
            cursor: pointer;
        }
        .video-pip-close:hover { color: var(--text-color); }
        .video-pip-body {
            padding: 8px;
            display: grid;
            gap: 6px;
        }
        .video-pip-cover-link {
            position: relative;
            display: block;
            aspect-ratio: 1 / 1;
            border: 1px solid color-mix(in srgb, var(--sub-color) 28%, transparent);
            border-radius: 8px;
            overflow: hidden;
            background: color-mix(in srgb, var(--bg-color) 35%, transparent);
        }
        .video-pip-cover-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .video-pip-cover-fallback {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--sub-color);
            font-size: 0.82rem;
            letter-spacing: 0.03em;
            background: color-mix(in srgb, var(--bg-color) 42%, var(--sub-alt-color) 58%);
        }
        .video-pip-cover-link.has-image .video-pip-cover-fallback {
            display: none;
        }
        .video-pip-title-link {
            color: var(--text-color);
            font-size: 0.82rem;
            font-weight: 700;
            text-decoration: none;
            line-height: 1.25;
        }
        .video-pip-title-link:hover {
            color: var(--main-color);
            text-decoration: underline;
        }
        .video-pip-subtitle {
            color: var(--sub-color);
            font-size: 0.7rem;
            line-height: 1.2;
        }
        @media (max-width: 640px) {
            .video-pip-panel {
                right: 10px;
                bottom: 10px;
                width: min(210px, 68vw);
            }
        }

        .search-controls {
            width: 100%;
            max-width: 1320px;
            margin: 0 auto;
            align-items: center;
        }
        .search-input-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: color-mix(in srgb, var(--text-color) 66%, transparent);
            pointer-events: none;
            z-index: 2;
            display: inline-flex;
        }
        .custom-input {
            background: color-mix(in srgb, var(--text-color) 7%, transparent);
            border: 1px solid color-mix(in srgb, var(--text-color) 10%, transparent);
            color: var(--text-color);
            transition: all 0.2s;
            border-radius: 999px;
            min-height: 52px;
            font-size: 1.05rem;
            padding: 0 18px 0 48px !important;
            box-shadow: 0 8px 18px color-mix(in srgb, var(--bg-color) 30%, transparent);
        }
        .custom-input:focus {
            border-color: color-mix(in srgb, var(--text-color) 22%, transparent);
            background: color-mix(in srgb, var(--text-color) 9%, transparent);
        }
        .custom-input::placeholder { color: color-mix(in srgb, var(--text-color) 72%, transparent); opacity: 1; }
        #btn-fetch-action {
            min-height: 44px;
            min-width: 180px;
            border-radius: 999px !important;
            background: #ffffff;
            color: #000000;
            border: 1px solid #ffffff;
            padding: 0 20px !important;
            font-size: 0.92rem;
            font-weight: 800;
            line-height: 1;
            box-shadow: 0 6px 16px color-mix(in srgb, var(--bg-color) 24%, transparent);
        }
        #btn-fetch-action #search-btn-text {
            color: #000000;
        }
        #btn-fetch-action:hover {
            filter: brightness(0.95);
            transform: translateY(-1px);
        }
        .custom-counter {
            margin-top: 6px;
            text-align: right;
            font-size: 0.75rem;
            color: var(--sub-color);
        }
        .custom-counter-warn {
            color: var(--error-color);
        }
        .duel-room-box {
            border: 1px solid color-mix(in srgb, var(--main-color) 30%, transparent);
            border-radius: 8px;
            padding: 10px;
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
        }
        .duel-room-meta-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
        }
        .header-notification-wrap {
            position: relative;
        }
        .header-notification-btn {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .header-notification-badge {
            position: absolute;
            top: -4px;
            right: -4px;
            min-width: 17px;
            height: 17px;
            padding: 0 5px;
            border-radius: 999px;
            background: var(--error-color);
            color: #fff;
            font-size: 0.65rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        .header-notifications-panel {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            width: min(360px, 92vw);
            max-height: 340px;
            overflow: auto;
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 95%, transparent);
            box-shadow: 0 12px 28px color-mix(in srgb, #000 35%, transparent);
            padding: 10px;
            z-index: 80;
        }
        .header-notifications-title {
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--sub-color);
            margin-bottom: 8px;
            font-weight: 700;
        }
        .header-notifications-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .duel-room-meta {
            font-size: 0.8rem;
            color: var(--main-color);
            font-weight: 700;
            word-break: break-all;
        }
        .duel-room-status {
            font-size: 0.78rem;
            color: var(--sub-color);
            margin-top: 2px;
        }
        .duel-view-card {
            border: 1px solid color-mix(in srgb, var(--main-color) 30%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
            padding: 14px;
        }
        .duel-view-title {
            color: var(--main-color);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-size: 0.8rem;
        }
        .duel-view-desc {
            margin-top: 6px;
            color: var(--sub-color);
            font-size: 0.85rem;
        }
        .duel-view-state {
            margin-top: 10px;
            color: var(--text-color);
            font-size: 0.9rem;
            font-weight: 700;
        }
        .duel-view-opponent {
            margin-top: 4px;
            color: var(--sub-color);
            font-size: 0.8rem;
        }
        .duel-slots {
            margin-top: 10px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }
        .duel-slot {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            padding: 8px;
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
        }
        .duel-slot-label {
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--sub-color);
        }
        .duel-slot-name {
            margin-top: 4px;
            font-size: 0.9rem;
            color: var(--text-color);
            font-weight: 700;
            word-break: break-word;
        }
        .duel-view-actions {
            display: flex;
            gap: 8px;
            margin-top: 12px;
            flex-wrap: wrap;
        }
        .duel-song-compact-meta {
            margin-top: 6px;
            font-size: 0.76rem;
            color: var(--sub-color);
        }
        .duel-song-recent-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 8px;
        }
        .duel-song-pick {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            border-radius: 8px;
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
            color: var(--text-color);
            text-align: left;
            padding: 8px;
            cursor: pointer;
            position: relative;
            transition: border-color 0.15s ease, background-color 0.15s ease;
        }
        .duel-song-pick:hover {
            border-color: color-mix(in srgb, var(--main-color) 55%, transparent);
            background: color-mix(in srgb, var(--main-color) 10%, transparent);
        }
        .duel-song-pick:disabled {
            cursor: not-allowed;
            opacity: 0.6;
        }
        .duel-song-pick-title {
            display: block;
            font-size: 0.84rem;
            font-weight: 700;
            color: var(--text-color);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .duel-song-pick-artist {
            display: block;
            margin-top: 2px;
            font-size: 0.72rem;
            color: var(--sub-color);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .duel-song-pick-source {
            display: inline-block;
            margin-top: 5px;
            font-size: 0.64rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--main-color);
            border: 1px solid color-mix(in srgb, var(--main-color) 42%, transparent);
            border-radius: 999px;
            padding: 2px 6px;
            line-height: 1;
        }
        .duel-quick-bar {
            display: grid;
            grid-template-columns: auto minmax(220px, 1fr) auto;
            gap: 8px;
            align-items: center;
            padding: 10px;
            border: 1px solid color-mix(in srgb, var(--main-color) 24%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
        }
        @media (max-width: 768px) {
            .duel-quick-bar {
                grid-template-columns: 1fr;
            }
            .duel-song-recent-grid {
                grid-template-columns: 1fr;
            }
        }
        .duel-member-meta {
            margin-top: 2px;
            font-size: 0.72rem;
            color: var(--sub-color);
        }
        .duel-member-status {
            margin-left: 8px;
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            color: var(--main-color);
        }
        .duel-invitee-layout {
            margin-top: 10px;
            padding: 10px;
            border: 1px solid color-mix(in srgb, var(--main-color) 32%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--main-color) 8%, transparent);
        }
        .duel-invitee-title {
            font-size: 0.72rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--main-color);
            font-weight: 700;
        }
        .duel-invitee-meta {
            margin-top: 6px;
            font-size: 0.82rem;
            color: var(--text-color);
        }
        .duel-nav-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 18px;
            height: 18px;
            padding: 0 6px;
            border-radius: 999px;
            background: var(--error-color);
            color: #fff;
            font-size: 0.68rem;
            font-weight: 700;
            line-height: 1;
        }
        .duel-hud {
            display: grid;
            grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
            gap: 8px;
            margin-bottom: 10px;
            padding: 10px;
            border: 1px solid color-mix(in srgb, var(--main-color) 35%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
        }
        .duel-pane-title {
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--sub-color);
            font-weight: 700;
        }
        .duel-pane-name {
            font-size: 0.9rem;
            color: var(--text-color);
            font-weight: 700;
        }
        .duel-pane-meta {
            font-size: 0.75rem;
            color: var(--sub-color);
            margin-top: 2px;
        }
        .duel-progress-track {
            margin-top: 6px;
            height: 8px;
            border-radius: 999px;
            background: color-mix(in srgb, var(--sub-color) 20%, transparent);
            overflow: hidden;
        }
        .duel-progress-fill {
            width: 0%;
            height: 100%;
            background: var(--main-color);
            transition: width 0.2s ease;
        }
        .duel-center {
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 6px;
        }
        .duel-countdown-text {
            font-size: 0.82rem;
            color: var(--main-color);
            font-weight: 700;
            text-align: center;
            white-space: nowrap;
        }
        .search-suggest {
            position: absolute;
            top: calc(100% + 6px);
            left: 0;
            right: 0;
            border: 1px solid color-mix(in srgb, var(--sub-color) 25%, transparent);
            background: color-mix(in srgb, var(--sub-alt-color) 98%, transparent);
            border-radius: 8px;
            box-shadow: 0 10px 25px color-mix(in srgb, var(--bg-color) 35%, transparent);
            max-height: 240px;
            overflow-y: auto;
            z-index: 35;
        }
        .search-suggest-item {
            width: 100%;
            border: 0;
            background: transparent;
            color: var(--text-color);
            text-align: left;
            padding: 10px 12px;
            font-size: 0.82rem;
            cursor: pointer;
            border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 14%, transparent);
        }
        .search-suggest-item:last-child {
            border-bottom: 0;
        }
        .search-suggest-item:hover {
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
            color: var(--main-color);
        }
        .artist-songs-list {
            display: grid;
            gap: 8px;
            max-height: 58vh;
            overflow-y: auto;
        }
        .current-song-artist-btn {
            border: 0;
            padding: 0;
            background: transparent;
            color: var(--text-color);
            cursor: pointer;
            text-align: left;
            border-bottom: 1px dashed transparent;
            transition: color 0.2s ease, border-color 0.2s ease;
        }
        .current-song-artist-btn:hover {
            color: var(--main-color);
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
        }
        .artist-spotlight-modal {
            background: color-mix(in srgb, var(--sub-alt-color) 92%, var(--bg-color) 8%);
            width: 100vw;
            height: 100vh;
            max-width: 100vw;
            max-height: 100vh;
            margin: 0;
            border-radius: 0;
            border-left: 0;
            border-right: 0;
            border-top: 0;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        body.artist-spotlight-open {
            overflow: hidden;
        }
        .artist-spotlight-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 12px;
        }
        .artist-spotlight-kicker {
            color: var(--sub-color);
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 4px;
        }
        .artist-spotlight-subtitle {
            color: var(--sub-color);
            font-size: 0.8rem;
            margin-top: 4px;
        }
        .artist-spotlight-close {
            border: 1px solid color-mix(in srgb, var(--sub-color) 34%, transparent);
            border-radius: 999px;
            background: color-mix(in srgb, var(--bg-color) 22%, transparent);
            color: var(--sub-color);
            font-size: 0.78rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 12px;
            line-height: 1;
            transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
        }
        .artist-spotlight-close:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
            background: color-mix(in srgb, var(--main-color) 10%, transparent);
        }
        .artist-spotlight-close-icon {
            color: var(--main-color);
            font-size: 1rem;
            font-weight: 700;
        }
        .artist-spotlight-hero {
            display: grid;
            grid-template-columns: 96px 1fr;
            gap: 14px;
            align-items: center;
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 10px;
            padding: 10px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
        }
        .artist-spotlight-cover {
            width: 96px;
            height: 96px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid color-mix(in srgb, var(--main-color) 40%, transparent);
            background: color-mix(in srgb, var(--bg-color) 30%, transparent);
        }
        .artist-spotlight-info {
            display: grid;
            gap: 10px;
            align-items: start;
        }
        .artist-spotlight-actions {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .artist-spotlight-grid {
            display: grid;
            gap: 8px 12px;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            flex: 1;
            min-height: 0;
            overflow-y: auto;
            padding-right: 4px;
        }
        .artist-spotlight-item {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--text-color);
            display: grid;
            grid-template-columns: 28px 1fr;
            gap: 10px;
            align-items: center;
            padding: 8px 10px;
            cursor: pointer;
            position: relative;
            transition: border-color 0.2s ease, background 0.2s ease;
            text-align: left;
        }
        .artist-spotlight-item:hover {
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
            background: color-mix(in srgb, var(--main-color) 8%, transparent);
        }
        .artist-spotlight-rank {
            color: var(--sub-color);
            font-size: 0.78rem;
            text-align: center;
        }
        .artist-spotlight-title {
            color: var(--text-color);
            font-size: 0.9rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .artist-spotlight-meta {
            color: var(--sub-color);
            font-size: 0.72rem;
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .artist-catalog-wrap {
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            padding: 12px;
            display: grid;
            gap: 10px;
        }
        .search-discovery-board {
            border: 0;
            border-radius: 0;
            background: transparent;
            padding: 0;
            display: grid;
            gap: 28px;
        }
        .search-discovery-chips {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .search-discovery-chip {
            border: 1px solid color-mix(in srgb, var(--text-color) 8%, transparent);
            background: color-mix(in srgb, var(--text-color) 7%, transparent);
            color: var(--text-color);
            border-radius: 999px;
            font-size: 0.86rem;
            font-weight: 700;
            padding: 7px 13px;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .search-discovery-chip:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--text-color) 20%, transparent);
            background: color-mix(in srgb, var(--text-color) 10%, transparent);
        }
        .search-discovery-chip.active {
            color: #000000;
            background: #ffffff;
            border-color: #ffffff;
        }
        .search-discovery-section {
            border: 0;
            border-radius: 0;
            background: transparent;
            padding: 0;
            display: grid;
            gap: 14px;
            align-content: start;
        }
        .search-discovery-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .search-discovery-title {
            color: var(--main-color);
            font-size: 1.1rem;
            text-transform: none;
            letter-spacing: -0.01em;
            font-weight: 700;
        }
        .search-discovery-meta {
            font-size: 0.7rem;
            color: color-mix(in srgb, var(--text-color) 76%, transparent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            font-weight: 700;
        }
        .search-discovery-row {
            display: flex;
            gap: 14px;
            overflow-x: auto;
            padding-bottom: 8px;
            scroll-snap-type: x proximity;
            scrollbar-width: thin;
            scrollbar-color: color-mix(in srgb, var(--main-color) 45%, transparent) color-mix(in srgb, var(--sub-color) 12%, transparent);
        }
        .search-discovery-row::-webkit-scrollbar {
            height: 6px;
        }
        .search-discovery-row::-webkit-scrollbar-track {
            background: color-mix(in srgb, var(--sub-color) 10%, transparent);
            border-radius: 999px;
        }
        .search-discovery-row::-webkit-scrollbar-thumb {
            background: color-mix(in srgb, var(--main-color) 42%, transparent);
            border-radius: 999px;
        }
        .search-mini-artist-card {
            border: 1px solid color-mix(in srgb, var(--text-color) 4%, transparent);
            border-radius: 12px;
            background: color-mix(in srgb, var(--text-color) 4%, transparent);
            color: var(--text-color);
            padding: 12px 12px 14px;
            display: grid;
            gap: 10px;
            cursor: pointer;
            text-align: left;
            transition: border-color 0.2s ease, background 0.2s ease;
            min-width: 160px;
            max-width: 170px;
            scroll-snap-align: start;
        }
        .search-mini-artist-card:hover {
            border-color: color-mix(in srgb, var(--text-color) 20%, transparent);
            background: color-mix(in srgb, var(--text-color) 9%, transparent);
        }
        .search-mini-artist-card img {
            width: 100%;
            aspect-ratio: 1 / 1;
            object-fit: cover;
            border-radius: 999px;
            background: color-mix(in srgb, var(--bg-color) 35%, transparent);
        }
        .search-mini-artist-card span {
            font-size: 0.98rem;
            color: var(--text-color);
            line-height: 1.25;
            font-weight: 700;
        }
        .search-mini-song-card,
        .search-mini-train-card {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--text-color);
            padding: 9px;
            display: grid;
            gap: 7px;
            cursor: pointer;
            text-align: left;
            position: relative;
            transition: border-color 0.2s ease, background 0.2s ease;
            min-width: 260px;
            max-width: 292px;
            scroll-snap-align: start;
        }
        .search-mini-song-card {
            grid-template-columns: 46px 1fr;
            align-items: center;
        }
        .search-mini-train-card {
            grid-template-columns: 54px 1fr;
            align-items: center;
            gap: 8px 10px;
            padding: 10px;
            padding-right: 34px;
        }
        .search-mini-song-card:hover,
        .search-mini-train-card:hover {
            border-color: color-mix(in srgb, var(--main-color) 48%, transparent);
            background: color-mix(in srgb, var(--main-color) 8%, transparent);
        }
        .search-mini-song-card img {
            width: 46px;
            height: 46px;
            border-radius: 6px;
            object-fit: cover;
            background: color-mix(in srgb, var(--bg-color) 35%, transparent);
        }
        .search-mini-train-card img {
            width: 54px;
            height: 54px;
            border-radius: 7px;
            object-fit: cover;
            background: color-mix(in srgb, var(--bg-color) 35%, transparent);
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
        }
        .search-mini-train-body {
            display: grid;
            gap: 2px;
            min-width: 0;
        }
        .search-mini-song-card .title,
        .search-mini-train-card .title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-color);
            line-height: 1.2;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .search-mini-song-card .meta,
        .search-mini-train-card .meta {
            font-size: 0.72rem;
            color: var(--sub-color);
            line-height: 1.2;
            margin-top: 2px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .search-mini-train-stats {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.64rem;
            letter-spacing: 0.03em;
            color: color-mix(in srgb, var(--text-color) 70%, transparent);
        }
        .search-mini-train-focus {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: fit-content;
            font-size: 0.58rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            border-radius: 999px;
            padding: 2px 6px;
            border: 1px solid color-mix(in srgb, var(--main-color) 40%, transparent);
            color: var(--main-color);
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
            margin-top: 1px;
        }
        .artist-catalog-head {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            align-items: flex-start;
        }
        .artist-catalog-name {
            color: var(--text-color);
            font-size: 1.25rem;
            font-weight: 700;
            line-height: 1.1;
            margin-top: 2px;
        }
        .artist-catalog-meta {
            color: var(--sub-color);
            font-size: 0.76rem;
            margin-top: 4px;
        }
        .artist-catalog-filter-row {
            display: block;
        }
        .artist-song-item {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 8px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 8px;
            align-items: center;
            transition: border-color 0.2s, background-color 0.2s;
        }
        .artist-song-item:hover {
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
            background: color-mix(in srgb, var(--main-color) 10%, transparent);
        }
        .artist-song-item.sync-ready {
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
            background: color-mix(in srgb, var(--main-color) 8%, transparent);
        }
        .artist-song-main {
            border: 0;
            background: transparent;
            color: var(--text-color);
            text-align: left;
            padding: 10px 12px;
            cursor: pointer;
            display: grid;
            gap: 2px;
            width: 100%;
        }
        .artist-song-fav {
            border: 0;
            background: transparent;
            color: var(--sub-color);
            width: 34px;
            height: 34px;
            border-radius: 0;
            font-size: 15px;
            line-height: 1;
            cursor: pointer;
            margin-right: 8px;
            position: relative;
            transition: color 0.18s ease, transform 0.2s ease, filter 0.2s ease, opacity 0.2s ease;
            opacity: 0.58;
            filter: grayscale(1) saturate(0.35) brightness(0.75);
        }
        .artist-song-fav:hover {
            color: color-mix(in srgb, var(--text-color) 84%, transparent);
            transform: translateY(-1px);
            opacity: 0.82;
        }
        .artist-song-fav.active {
            color: var(--main-color);
            filter: none;
            opacity: 1;
        }
        .artist-song-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text-color);
        }
        .artist-song-meta {
            font-size: 0.72rem;
            color: var(--sub-color);
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }
        .artist-song-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            font-size: 0.58rem;
            letter-spacing: 0.05em;
            padding: 2px 7px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 30%, transparent);
            color: var(--sub-color);
            background: color-mix(in srgb, var(--bg-color) 24%, transparent);
        }
        .artist-song-badge.ok {
            border-color: color-mix(in srgb, var(--main-color) 55%, transparent);
            color: var(--main-color);
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
        }
        .artist-song-badge.off {
            border-color: color-mix(in srgb, var(--sub-color) 34%, transparent);
        }
        .artist-album-section {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 16%, transparent);
            padding: 10px;
            display: grid;
            gap: 8px;
        }
        .artist-album-title {
            color: var(--main-color);
            font-size: 0.82rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            font-weight: 700;
            border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 16%, transparent);
            padding-bottom: 6px;
        }
        .artist-album-title span {
            color: var(--sub-color);
            font-weight: 500;
            margin-left: 4px;
        }
        .artist-album-songs {
            display: grid;
            gap: 6px;
        }
        .favorites-tab-controls {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 10px;
            align-items: center;
        }
        .favorites-select {
            appearance: none;
            -webkit-appearance: none;
            -moz-appearance: none;
            padding-right: 36px;
            background-image: none;
            color-scheme: dark;
        }
        .favorites-select option {
            background: var(--surface-deep);
            color: color-mix(in srgb, var(--text-color) 90%, var(--main-color) 10%);
        }
        .favorites-cards-grid {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 8px 12px;
        }
        .favorite-media-card {
            border: 1px solid color-mix(in srgb, var(--text-color) 4%, transparent);
            border-radius: 8px;
            background: color-mix(in srgb, var(--text-color) 4%, transparent);
            overflow: hidden;
            display: grid;
            grid-template-columns: 72px 1fr;
            align-items: stretch;
            text-align: left;
            color: var(--text-color);
            cursor: pointer;
            position: relative;
            transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
        }
        .favorite-media-card:hover {
            border-color: color-mix(in srgb, var(--text-color) 18%, transparent);
            background: color-mix(in srgb, var(--text-color) 8%, transparent);
        }
        .favorite-media-thumb {
            width: 100%;
            height: 100%;
            min-height: 100%;
            object-fit: cover;
            object-position: center center;
            background: color-mix(in srgb, var(--bg-color) 35%, transparent);
            border-right: 1px solid color-mix(in srgb, var(--sub-color) 18%, transparent);
        }
        .favorite-media-body {
            padding: 8px 10px;
            display: grid;
            gap: 3px;
            align-content: center;
            position: relative;
        }
        .favorite-media-title {
            color: var(--text-color);
            font-size: 0.9rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .favorite-media-artist {
            color: var(--main-color);
            font-size: 0.73rem;
            font-weight: 700;
        }
        .favorite-media-meta {
            color: var(--sub-color);
            font-size: 0.68rem;
        }
        .favorite-media-tag {
            color: var(--sub-color);
            font-size: 0.66rem;
            text-transform: uppercase;
            letter-spacing: 0.06em;
        }
        .song-card-favorite {
            position: absolute;
            top: 8px;
            right: 8px;
            width: 22px;
            height: 22px;
            border-radius: 0;
            border: 0;
            background: transparent;
            color: var(--sub-color);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.72rem;
            line-height: 1;
            cursor: pointer;
            z-index: 2;
            transition: color 0.18s ease, transform 0.18s ease, filter 0.18s ease, opacity 0.18s ease;
            user-select: none;
            transform: translateZ(0);
            opacity: 0.58;
            filter: grayscale(1) saturate(0.35) brightness(0.75);
        }
        .favorite-logo-icon {
            width: 14px;
            height: 14px;
            display: block;
        }
        .song-card-favorite .favorite-logo-icon {
            width: 12px;
            height: 12px;
        }
        .song-card-favorite::before,
        .artist-song-fav::before {
            content: none;
        }
        .song-card-favorite::after,
        .artist-song-fav::after {
            content: none;
        }
        .song-card-favorite:hover {
            color: color-mix(in srgb, var(--text-color) 84%, transparent);
            transform: translateY(-1px);
            opacity: 0.82;
        }
        .song-card-favorite.active {
            color: var(--main-color);
            filter: none;
            opacity: 1;
        }
        .song-card-favorite.ignite,
        .artist-song-fav.ignite {
            animation: sunIgnitePop 0.42s ease-out;
        }
        @keyframes sunIgnitePop {
            0% { transform: scale(0.8); }
            60% { transform: scale(1.18); }
            100% { transform: scale(1); }
        }

        /* Preview Mode Fix */
        .preview-mode #words-wrapper { pointer-events: auto !important; user-select: text !important; overflow-y: auto !important; mask-image: none !important; -webkit-mask-image: none !important; background: color-mix(in srgb, var(--bg-color) 15%, transparent); border-radius: 8px; }
        .preview-mode #words-wrapper::-webkit-scrollbar { width: 8px; }
        .preview-mode #words-wrapper::-webkit-scrollbar-thumb { background: var(--sub-color); border-radius: 4px; }

        /* CHART */
        #chart-container { position: relative; width: 100%; height: 100%; }
        canvas { display: block; width: 100%; height: 100%; }
        
        /* Dashboard */
        .dashboard-stat-title { color: var(--sub-color); font-size: 0.8rem; margin-bottom: 0.2rem; }
        .dashboard-stat-value { color: var(--main-color); font-size: 2rem; line-height: 1; }
        .dashboard-sub-val { font-size: 0.8rem; color: var(--sub-color); }
        
        /* WPM Diff */
        .wpm-diff { font-size: 0.8rem; font-weight: normal; margin-left: 6px; vertical-align: middle; opacity: 0.8; }
        .wpm-diff.positive { color: var(--success-color); }
        .wpm-diff.negative { color: var(--error-color); }

        /* Practice Modal */
        .practice-card { background: var(--sub-alt-color); padding: 30px; border-radius: 12px; border: 2px solid transparent; transition: all 0.3s; display: flex; flex-col: column; align-items: center; justify-content: center; min-height: 200px; }
        .practice-card.success { border-color: var(--success-color); background: color-mix(in srgb, var(--main-color) 10%, transparent); }
        .practice-word-display { font-size: 2.5rem; font-weight: bold; color: var(--main-color); margin-bottom: 0.5rem; }
        .practice-translation { font-size: 1rem; color: var(--sub-color); font-style: italic; margin-bottom: 1.5rem; }
        .practice-input { width: 100%; max-width: 300px; background: color-mix(in srgb, var(--bg-color) 20%, transparent); border: 2px solid var(--sub-color); border-radius: 8px; padding: 12px; font-size: 1.2rem; color: var(--text-color); text-align: center; outline: none; transition: border-color 0.2s; }
        .practice-input:focus { border-color: var(--main-color); }
        .practice-progress { margin-top: 1rem; font-size: 0.8rem; color: var(--sub-color); }

        /* Profile & Badges */
        .level-badge { background: var(--main-color); color: var(--btn-text-color); padding: 2px 8px; border-radius: 4px; font-size: 0.7rem; font-weight: bold; text-transform: uppercase; }
        .xp-bar-container { width: 100%; height: 8px; background: var(--bg-color); border-radius: 4px; overflow: hidden; margin-top: 8px; }
        .xp-bar-fill { height: 100%; background: var(--main-color); transition: width 0.5s ease; }
        .xp-session-card {
            border: 1px solid color-mix(in srgb, var(--sub-color) 30%, transparent);
            border-radius: 12px;
            background: color-mix(in srgb, var(--bg-color) 14%, transparent);
            padding: 14px 16px;
        }
        .xp-session-head {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            gap: 8px;
            margin-bottom: 8px;
        }
        .xp-session-level {
            color: var(--text-color);
            font-size: 0.92rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 700;
        }
        .xp-session-meta {
            color: var(--sub-color);
            font-size: 0.78rem;
        }
        .xp-breakdown-list {
            margin-top: 10px;
            display: grid;
            grid-template-columns: 1fr;
            gap: 3px;
        }
        .xp-breakdown-row {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            font-size: 0.92rem;
            color: var(--sub-color);
        }
        .xp-breakdown-row strong {
            color: var(--main-color);
            font-size: 1.02rem;
            font-weight: 700;
        }
        .xp-breakdown-row strong.is-negative {
            color: var(--error-color);
        }
        .xp-breakdown-row.total {
            margin-top: 2px;
            padding-top: 4px;
            border-top: 1px solid color-mix(in srgb, var(--sub-color) 30%, transparent);
            color: var(--text-color);
        }
        .xp-breakdown-row.total strong {
            font-size: 1.12rem;
        }
        .profile-inline-xp {
            margin-top: 6px;
            min-width: 210px;
            max-width: 300px;
        }
        .profile-inline-xp--hub {
            margin-top: 10px;
            max-width: 420px;
        }
        .profile-inline-xp-meta {
            font-size: 0.72rem;
            color: var(--sub-color);
            margin-bottom: 4px;
        }
        .profile-inline-xp-bar {
            margin-top: 0;
            height: 7px;
        }
        .badge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 10px; }
        .badge-item { width: 80px; height: 80px; background: var(--sub-alt-color); border-radius: 8px; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--sub-color); border: 1px solid transparent; opacity: 0.5; transition: all 0.2s; position: relative; padding: 5px; }
        .badge-item.unlocked { opacity: 1; border-color: var(--gold-color); color: var(--gold-color); background: color-mix(in srgb, var(--gold-color) 10%, transparent); }
        .badge-stars { font-size: 0.6rem; margin-top: 4px; letter-spacing: -1px; }
        .badge-item:hover .badge-tooltip { display: block; }
        .badge-tooltip { display: none; position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%); background: var(--bg-color); color: var(--text-color); padding: 8px; border-radius: 4px; font-size: 0.75rem; white-space: nowrap; border: 1px solid var(--sub-color); z-index: 20; margin-bottom: 5px; text-align: center; }

        /* Theme Buttons */
        .theme-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
        .theme-btn {
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            padding: 10px;
            border-radius: 6px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #ffffff 9%, transparent),
                0 4px 12px color-mix(in srgb, #000000 12%, transparent);
            backdrop-filter: blur(5px) saturate(108%);
            -webkit-backdrop-filter: blur(5px) saturate(108%);
            transition: all 0.2s;
        }
        .theme-btn:hover {
            border-color: color-mix(in srgb, #ffffff 20%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 9%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--text-color) 8%, transparent);
        }
        .theme-btn.active { border-color: var(--main-color); box-shadow: 0 0 0 1px var(--main-color); }

        /* Account auth modal */
        .auth-tabs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
            background: color-mix(in srgb, var(--bg-color) 15%, transparent);
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            padding: 6px;
        }
        .auth-tab {
            border: 1px solid color-mix(in srgb, #ffffff 10%, transparent);
            border-radius: 6px;
            padding: 10px 12px;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            color: var(--sub-color);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 6%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 16%, transparent);
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .auth-tab.active {
            color: var(--main-color);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            box-shadow: inset 0 -2px 0 var(--main-color);
        }
        .auth-panel {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .auth-social-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }
        .auth-social-btn {
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            color: var(--text-color);
            border-radius: 8px;
            padding: 10px 12px;
            font-size: 0.85rem;
            font-weight: 700;
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 9%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .auth-social-btn:hover {
            border-color: var(--main-color);
            color: var(--main-color);
        }
        .auth-social-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            border-color: color-mix(in srgb, var(--sub-color) 20%, transparent);
            color: var(--sub-color);
        }
        .auth-divider {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--sub-color);
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-top: 2px;
        }
        .auth-divider::before,
        .auth-divider::after {
            content: "";
            flex: 1;
            height: 1px;
            background: color-mix(in srgb, var(--sub-color) 20%, transparent);
        }
        .auth-field-group {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .auth-label {
            font-size: 0.7rem;
            color: var(--sub-color);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 700;
        }
        .auth-input {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--sub-color) 15%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--text-color);
            border-radius: 8px;
            padding: 11px 12px;
            outline: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        .auth-input::placeholder { color: var(--sub-color); opacity: 0.9; }
        .auth-input:focus {
            border-color: var(--main-color);
            box-shadow: 0 0 0 2px color-mix(in srgb, var(--main-color) 15%, transparent);
        }
        .auth-password-wrap {
            position: relative;
        }
        .auth-input-with-toggle {
            padding-right: 72px;
        }
        .auth-password-toggle {
            position: absolute;
            right: 8px;
            top: 50%;
            transform: translateY(-50%);
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--sub-color);
            border-radius: 6px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            padding: 4px 8px;
            cursor: pointer;
            line-height: 1;
            min-width: 56px;
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
        }
        .auth-password-toggle:hover {
            color: var(--main-color);
            border-color: color-mix(in srgb, var(--main-color) 35%, transparent);
        }
        .auth-checkbox-row {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 2px;
            color: var(--text-color);
            font-size: 0.85rem;
        }
        .auth-checkbox-row input {
            accent-color: var(--main-color);
        }
        .auth-submit-btn {
            width: 100%;
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 8%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            color: var(--text-color);
            border-radius: 8px;
            padding: 12px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 700;
            box-shadow:
                inset 0 1px 0 color-mix(in srgb, #ffffff 9%, transparent),
                0 4px 12px color-mix(in srgb, #000000 12%, transparent);
            backdrop-filter: blur(5px) saturate(108%);
            -webkit-backdrop-filter: blur(5px) saturate(108%);
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .auth-submit-btn:hover {
            border-color: var(--main-color);
            color: var(--main-color);
        }
        .auth-submit-btn:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            border-color: color-mix(in srgb, var(--sub-color) 15%, transparent);
            color: var(--sub-color);
        }
        .auth-user-card {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-radius: 10px;
            padding: 14px;
        }
        .auth-profile-top {
            display: grid;
            grid-template-columns: 80px 1fr;
            gap: 12px;
            align-items: center;
        }
        .auth-profile-edit-row {
            display: flex;
            justify-content: flex-end;
            margin-bottom: 8px;
        }
        .auth-profile-edit-panel {
            margin-top: 8px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            padding: 10px;
            display: grid;
            gap: 8px;
            background: color-mix(in srgb, var(--bg-color) 15%, transparent);
        }
        .auth-file-input {
            display: none;
        }
        .auth-file-row {
            display: grid;
            grid-template-columns: 128px 1fr;
            gap: 10px;
            align-items: center;
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            padding: 8px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
        }
        .auth-file-trigger {
            border: 1px solid color-mix(in srgb, #ffffff 14%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 8%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--main-color) 10%, transparent);
            color: var(--main-color);
            font-size: 0.72rem;
            border-radius: 6px;
            padding: 8px 10px;
            cursor: pointer;
            transition: all 0.2s ease;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 700;
            width: 100%;
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 9%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
        }
        .auth-file-trigger:hover {
            border-color: color-mix(in srgb, var(--main-color) 70%, transparent);
            background: color-mix(in srgb, var(--main-color) 20%, transparent);
        }
        .auth-file-name {
            color: var(--sub-color);
            font-size: 0.72rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .custom-cover-preview {
            width: 92px;
            height: 92px;
            border-radius: 8px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 26%, transparent);
            object-fit: cover;
            object-position: center center;
            background: color-mix(in srgb, var(--bg-color) 30%, transparent);
        }
        .auth-edit-actions {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 8px;
            align-items: center;
        }
        .auth-player-pref {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 6px;
        }
        .auth-player-btn {
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            color: var(--sub-color);
            font-size: 0.72rem;
            font-weight: 700;
            border-radius: 7px;
            padding: 8px 6px;
            cursor: pointer;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            transition: all 0.2s ease;
        }
        .auth-player-btn:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
        }
        .auth-player-btn.active {
            color: var(--main-color);
            border-color: color-mix(in srgb, var(--main-color) 55%, transparent);
            background: color-mix(in srgb, var(--main-color) 12%, transparent);
        }
        .auth-avatar {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid color-mix(in srgb, var(--main-color) 35%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
        }
        .auth-avatar-clickable {
            cursor: zoom-in;
        }
        .avatar-preview-overlay {
            background: color-mix(in srgb, var(--bg-color) 78%, transparent);
            backdrop-filter: blur(6px);
            padding: 20px;
        }
        .avatar-preview-card {
            border: 1px solid color-mix(in srgb, var(--sub-color) 28%, transparent);
            background: color-mix(in srgb, var(--sub-alt-color) 96%, transparent);
            border-radius: 12px;
            padding: 14px;
            max-width: min(92vw, 420px);
            width: 100%;
            display: grid;
            gap: 10px;
            justify-items: center;
            box-shadow: 0 16px 40px color-mix(in srgb, var(--bg-color) 45%, transparent);
        }
        .avatar-preview-close {
            justify-self: end;
            border: 1px solid color-mix(in srgb, var(--sub-color) 30%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--sub-color);
            border-radius: 6px;
            font-size: 0.72rem;
            padding: 5px 9px;
            cursor: pointer;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .avatar-preview-close:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
        }
        .avatar-preview-image {
            width: min(78vw, 320px);
            height: min(78vw, 320px);
            border-radius: 12px;
            object-fit: cover;
            border: 2px solid color-mix(in srgb, var(--main-color) 45%, transparent);
            background: color-mix(in srgb, var(--bg-color) 28%, transparent);
        }
        .avatar-preview-name {
            color: var(--text-color);
            font-size: 0.82rem;
            text-align: center;
        }
        .auth-level {
            color: var(--main-color);
            font-size: 0.75rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            font-weight: 700;
        }
        .auth-bio-input {
            resize: vertical;
            min-height: 56px;
        }
        .auth-achievements {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .auth-achievement {
            border: 1px solid color-mix(in srgb, var(--main-color) 35%, transparent);
            color: var(--main-color);
            background: color-mix(in srgb, var(--main-color) 10%, transparent);
            border-radius: 999px;
            padding: 3px 8px;
            font-size: 0.68rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .auth-actions {
            display: grid;
            gap: 10px;
        }
        .auth-stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 8px;
        }
        .auth-stat-box {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-radius: 8px;
            padding: 10px;
            text-align: center;
        }
        .auth-stat-label {
            color: var(--sub-color);
            font-size: 0.65rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 2px;
        }
        .auth-stat-value {
            color: var(--text-color);
            font-weight: 700;
            font-size: 1rem;
        }
        .auth-recent-list {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-radius: 8px;
            max-height: 140px;
            overflow-y: auto;
            padding: 6px;
            display: grid;
            gap: 6px;
        }
        .auth-recent-item {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 6px;
            padding: 8px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 8px;
            align-items: center;
        }
        .auth-recent-title {
            color: var(--text-color);
            font-size: 0.8rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .auth-recent-meta {
            color: var(--sub-color);
            font-size: 0.7rem;
            margin-top: 2px;
        }
        .auth-recent-score {
            color: var(--main-color);
            font-size: 0.8rem;
            font-weight: 700;
            white-space: nowrap;
        }
        .auth-recent-empty {
            color: var(--sub-color);
            font-size: 0.75rem;
            font-style: italic;
            text-align: center;
            padding: 10px 4px;
        }
        .auth-history-wrap {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-radius: 8px;
            padding: 8px;
            display: grid;
            gap: 8px;
        }
        #auth-history-chart {
            width: 100%;
            background: color-mix(in srgb, var(--bg-color) 15%, transparent);
            border-radius: 6px;
        }
        .auth-history-summary {
            color: var(--sub-color);
            font-size: 0.75rem;
        }
        .auth-friends-wrap {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-radius: 8px;
            padding: 8px;
            display: grid;
            gap: 8px;
        }
        .auth-friend-add-row {
            display: grid;
            grid-template-columns: 1fr 90px;
            gap: 8px;
        }
        .auth-friend-add-row .auth-submit-btn {
            padding: 11px 8px;
            font-size: 0.8rem;
        }
        .auth-subtitle {
            color: var(--sub-color);
            font-size: 0.7rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-top: 2px;
        }
        .auth-friend-list {
            display: grid;
            gap: 6px;
            max-height: 120px;
            overflow-y: auto;
        }
        .auth-friend-item {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 6px;
            padding: 8px;
            display: grid;
            grid-template-columns: auto 1fr auto;
            align-items: center;
            gap: 8px;
        }
        .auth-friend-avatar-btn {
            width: 34px;
            height: 34px;
            border-radius: 999px;
            border: 1px solid color-mix(in srgb, var(--sub-color) 26%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            padding: 0;
            overflow: hidden;
            cursor: zoom-in;
        }
        .auth-friend-avatar-btn:hover {
            border-color: color-mix(in srgb, var(--main-color) 55%, transparent);
        }
        .auth-friend-avatar-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
        }
        .auth-friend-name {
            color: var(--text-color);
            font-size: 0.8rem;
            font-weight: 700;
        }
        .auth-friend-meta {
            color: var(--sub-color);
            font-size: 0.7rem;
            line-height: 1.3;
        }
        .auth-friend-actions {
            display: inline-flex;
            gap: 6px;
        }
        .auth-friend-item--request .auth-friend-actions {
            justify-self: end;
        }
        .auth-status-chip {
            display: inline-flex;
            align-items: center;
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            border-radius: 999px;
            padding: 1px 7px;
            font-size: 0.64rem;
            letter-spacing: 0.03em;
            margin-right: 5px;
            color: var(--sub-color);
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
        }
        .auth-status-chip.incoming {
            color: var(--main-color);
            border-color: color-mix(in srgb, var(--main-color) 38%, transparent);
            background: color-mix(in srgb, var(--main-color) 10%, transparent);
        }
        .auth-status-chip.outgoing {
            color: color-mix(in srgb, var(--text-color) 86%, transparent);
            border-color: color-mix(in srgb, var(--sub-color) 30%, transparent);
        }
        .auth-status-chip.pending {
            color: color-mix(in srgb, var(--text-color) 78%, transparent);
        }
        .auth-friend-btn {
            border: 1px solid color-mix(in srgb, #ffffff 12%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            color: var(--text-color);
            font-size: 0.7rem;
            border-radius: 5px;
            padding: 4px 8px;
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            cursor: pointer;
        }
        .auth-friend-btn.accept {
            border-color: color-mix(in srgb, var(--main-color) 50%, transparent);
            color: var(--main-color);
        }
        .auth-friend-btn.reject {
            border-color: color-mix(in srgb, var(--error-color) 40%, transparent);
            color: var(--error-soft-text);
        }
        .auth-favorites-wrap {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            border-radius: 8px;
            padding: 8px;
            display: grid;
            gap: 8px;
        }
        .auth-favorite-list {
            display: grid;
            gap: 6px;
            max-height: 170px;
            overflow-y: auto;
        }
        .auth-favorite-item {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 6px;
            padding: 8px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 8px;
            align-items: center;
        }
        .auth-favorite-title {
            color: var(--text-color);
            font-size: 0.8rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .auth-favorite-meta {
            color: var(--sub-color);
            font-size: 0.7rem;
        }
        .profile-hub-overlay {
            background: color-mix(in srgb, var(--sub-alt-color) 94%, var(--bg-color) 6%);
            backdrop-filter: blur(6px);
            overflow-y: auto;
            height: 100dvh;
            overscroll-behavior: contain;
            padding: calc(72px + env(safe-area-inset-top)) 14px 24px;
            box-sizing: border-box;
        }
        .profile-hub-shell {
            max-width: 1280px;
            margin: 14px auto 0;
            border: 1px solid color-mix(in srgb, var(--main-color) 20%, transparent);
            border-radius: 16px;
            padding: 18px;
            background: color-mix(in srgb, var(--sub-alt-color) 95%, var(--bg-color) 5%);
            box-shadow: 0 20px 56px color-mix(in srgb, var(--bg-color) 48%, transparent);
            display: grid;
            gap: 12px;
        }
        .profile-hub-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .profile-hub-kicker {
            color: var(--sub-color);
            font-size: 0.94rem;
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }
        .profile-hub-close {
            border: 1px solid color-mix(in srgb, var(--sub-color) 30%, transparent);
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            color: var(--sub-color);
            border-radius: 999px;
            padding: 8px 14px;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .profile-hub-close:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--main-color) 45%, transparent);
        }
        .profile-hub-close-icon {
            color: var(--main-color);
            font-size: 0.94rem;
            line-height: 1;
            font-weight: 700;
        }
        .profile-hub-hero {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 12px;
            padding: 18px;
            background: color-mix(in srgb, var(--theme-c1) 58%, var(--theme-c5) 42%);
            display: grid;
            grid-template-columns: 124px minmax(0, 1fr) minmax(140px, 220px);
            gap: 16px;
            align-items: center;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .profile-hub-hero-bg-wrap {
            position: absolute;
            inset: 0;
            z-index: -2;
        }
        .profile-hub-hero-bg {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.2;
            filter: saturate(0.85) contrast(1.05) brightness(0.8);
        }
        .profile-hub-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(95deg, color-mix(in srgb, var(--theme-c1) 75%, transparent) 0%, color-mix(in srgb, var(--theme-c1) 68%, transparent) 52%, color-mix(in srgb, var(--theme-c1) 84%, transparent) 100%);
            z-index: -1;
            pointer-events: none;
        }
        .profile-hub-avatar {
            width: 124px;
            height: 124px;
            border-radius: 50%;
            object-fit: cover;
            border: 3px solid color-mix(in srgb, var(--text-color) 26%, transparent);
            box-shadow: 0 12px 24px color-mix(in srgb, var(--bg-color) 35%, transparent);
        }
        .profile-hub-label {
            color: color-mix(in srgb, var(--text-color) 80%, transparent);
            font-size: 0.82rem;
            letter-spacing: 0.06em;
        }
        .profile-hub-title {
            color: var(--text-color);
            font-size: clamp(2rem, 4.8vw, 4.3rem);
            font-weight: 800;
            line-height: 1.03;
            margin-top: 4px;
        }
        .profile-hub-meta-row {
            margin-top: 10px;
            display: flex;
            gap: 10px;
            align-items: baseline;
            flex-wrap: wrap;
        }
        .profile-hub-level {
            color: var(--main-color);
            font-size: 0.84rem;
            font-weight: 700;
            letter-spacing: 0.06em;
            text-transform: uppercase;
        }
        .profile-hub-email {
            color: color-mix(in srgb, var(--text-color) 86%, transparent);
            font-size: 0.98rem;
        }
        .profile-hub-bio {
            color: var(--text-90);
            font-size: 1rem;
            margin-top: 10px;
            line-height: 1.38;
            max-width: 78ch;
        }
        .profile-hub-primary-track {
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            border-radius: 10px;
            background: color-mix(in srgb, var(--bg-color) 36%, transparent);
            padding: 10px;
            display: grid;
            gap: 4px;
            justify-items: start;
            align-content: start;
        }
        .profile-hub-primary-kicker {
            color: var(--sub-color);
            font-size: 0.68rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            font-weight: 700;
        }
        .profile-hub-primary-title {
            color: var(--text-color);
            font-size: 1.55rem;
            line-height: 1;
            font-weight: 800;
        }
        .profile-hub-primary-artist {
            color: color-mix(in srgb, var(--text-color) 86%, transparent);
            font-size: 0.9rem;
            line-height: 1.25;
            min-height: 1.3em;
        }
        .profile-hub-primary-cover {
            width: 84px;
            height: 84px;
            border-radius: 8px;
            object-fit: cover;
            border: 1px solid color-mix(in srgb, var(--sub-color) 26%, transparent);
            background: color-mix(in srgb, var(--bg-color) 25%, transparent);
            margin-top: 4px;
        }
        .profile-hub-primary-time {
            margin-top: 4px;
            width: 100%;
            border-top: 1px solid color-mix(in srgb, var(--sub-color) 28%, transparent);
            padding-top: 8px;
            display: grid;
            gap: 2px;
        }
        .profile-hub-typing-clock {
            color: var(--text-color);
            font-size: 1.7rem;
            letter-spacing: 0.04em;
            line-height: 1;
            font-weight: 700;
        }
        .profile-hub-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 10px;
        }
        .profile-hub-stat {
            border: 1px solid color-mix(in srgb, var(--sub-color) 22%, transparent);
            border-radius: 10px;
            padding: 12px;
            background: color-mix(in srgb, var(--bg-color) 22%, transparent);
            display: grid;
            gap: 4px;
            text-align: center;
        }
        .profile-hub-stat span {
            color: var(--sub-color);
            text-transform: uppercase;
            font-size: 0.72rem;
            letter-spacing: 0.06em;
        }
        .profile-hub-stat strong {
            color: var(--text-color);
            font-size: 2rem;
            line-height: 1;
        }
        .profile-hub-compare {
            border: 1px solid color-mix(in srgb, var(--sub-color) 24%, transparent);
            border-radius: 12px;
            padding: 12px;
            background: color-mix(in srgb, var(--bg-color) 20%, transparent);
            display: grid;
            gap: 10px;
        }
        .profile-hub-compare-head {
            display: grid;
            grid-template-columns: 1fr minmax(210px, 300px);
            gap: 10px;
            align-items: center;
        }
        .profile-hub-compare-head h3 {
            color: var(--sub-color);
            font-size: 0.82rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }
        .profile-hub-compare-select {
            margin: 0;
            padding: 8px 10px;
            height: auto;
            min-height: 38px;
        }
        .profile-hub-compare-grid {
            border: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
            border-radius: 8px;
            overflow: hidden;
            background: color-mix(in srgb, var(--bg-color) 14%, transparent);
        }
        .profile-hub-compare-row {
            display: grid;
            grid-template-columns: 1.3fr repeat(3, minmax(0, 1fr));
            gap: 8px;
            align-items: center;
            padding: 10px 12px;
            border-top: 1px solid color-mix(in srgb, var(--sub-color) 14%, transparent);
            font-size: 0.94rem;
        }
        .profile-hub-compare-row:first-child {
            border-top: 0;
        }
        .profile-hub-compare-row.head {
            background: color-mix(in srgb, var(--bg-color) 24%, transparent);
            color: var(--sub-color);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-size: 0.72rem;
            font-weight: 700;
        }
        .profile-hub-compare-metric {
            color: var(--text-color);
            font-weight: 700;
        }
        .profile-hub-compare-you,
        .profile-hub-compare-friend {
            color: var(--text-color);
            text-align: center;
            font-weight: 700;
        }
        .profile-hub-compare-diff {
            text-align: center;
            font-weight: 700;
            color: var(--sub-color);
        }
        .profile-hub-compare-diff.up {
            color: var(--main-color);
        }
        .profile-hub-compare-diff.down {
            color: var(--error-soft-text);
        }
        .profile-hub-compare-diff.even {
            color: var(--sub-color);
        }
        .profile-hub-main-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 14px;
            align-items: start;
        }
        .profile-hub-card {
            border: 1px solid color-mix(in srgb, var(--sub-color) 18%, transparent);
            border-radius: 12px;
            padding: 14px;
            background: color-mix(in srgb, var(--bg-color) 80%, var(--sub-alt-color) 20%);
            min-width: 0;
        }
        .profile-hub-section-head {
            display: flex;
            justify-content: space-between;
            align-items: end;
            gap: 10px;
            margin-bottom: 12px;
        }
        .profile-hub-section-title {
            color: var(--text-color);
            font-size: clamp(1.35rem, 2.3vw, 2rem);
            font-weight: 800;
            line-height: 1.05;
        }
        .profile-hub-section-subtitle {
            color: color-mix(in srgb, var(--text-color) 90%, transparent);
            font-size: 0.92rem;
            margin-top: 2px;
        }
        .profile-hub-section-link {
            color: color-mix(in srgb, var(--text-color) 82%, transparent);
            font-size: 0.92rem;
            font-weight: 700;
            white-space: nowrap;
            border: 0;
            background: transparent;
            cursor: pointer;
            padding: 0;
            transition: color 0.2s ease;
        }
        .profile-hub-section-link:hover {
            color: var(--text-color);
        }
        .profile-hub-section-link:disabled {
            opacity: 0.45;
            cursor: default;
        }
        .profile-hub-artist-rail {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(132px, 170px));
            gap: 14px;
            justify-content: start;
        }
        .profile-hub-artist-item {
            min-width: 0;
            width: 170px;
            max-width: 100%;
        }
        .profile-hub-artist-cover {
            width: 100%;
            max-width: 170px;
            aspect-ratio: 1 / 1;
            border-radius: 999px;
            object-fit: cover;
            border: 2px solid color-mix(in srgb, var(--text-color) 16%, transparent);
            box-shadow: 0 10px 18px color-mix(in srgb, var(--bg-color) 30%, transparent);
            margin-bottom: 9px;
            display: block;
        }
        .profile-hub-artist-name {
            color: var(--text-color);
            font-size: 1.01rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .profile-hub-artist-meta {
            color: var(--sub-color);
            font-size: 0.84rem;
            margin-top: 2px;
        }
        .profile-hub-song-list {
            display: grid;
            gap: 2px;
            max-height: none;
            overflow: visible;
            padding-right: 4px;
        }
        .profile-hub-song-item {
            display: grid;
            grid-template-columns: 30px minmax(0, 1.1fr) minmax(132px, 0.85fr) minmax(126px, max-content) minmax(66px, max-content);
            gap: 10px;
            align-items: center;
            padding: 9px 6px;
            border-top: 1px solid color-mix(in srgb, var(--sub-color) 14%, transparent);
        }
        .profile-hub-song-item:first-child {
            border-top: 0;
        }
        .profile-hub-song-rank {
            color: color-mix(in srgb, var(--text-color) 86%, transparent);
            font-size: 1.02rem;
            text-align: center;
        }
        .profile-hub-song-title {
            color: var(--text-color);
            font-size: 1.03rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .profile-hub-song-artist {
            color: var(--sub-color);
            font-size: 0.95rem;
            margin-top: 1px;
        }
        .profile-hub-song-album {
            color: color-mix(in srgb, var(--text-color) 82%, transparent);
            font-size: 0.96rem;
            line-height: 1.2;
        }
        .profile-hub-song-metric {
            color: var(--main-color);
            font-size: 0.86rem;
            font-weight: 700;
            text-align: right;
            white-space: nowrap;
            justify-self: end;
            padding-right: 6px;
        }
        .profile-hub-song-time {
            color: color-mix(in srgb, var(--text-color) 88%, transparent);
            font-size: 0.92rem;
            text-align: right;
            white-space: nowrap;
            min-width: 58px;
            justify-self: end;
            padding-left: 8px;
            border-left: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
        }
        .profile-hub-card canvas {
            width: 100%;
            border-radius: 8px;
            background: color-mix(in srgb, var(--bg-color) 18%, transparent);
        }
        .profile-hub-achievements {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .profile-hub-list {
            display: grid;
            gap: 6px;
            max-height: 260px;
            overflow-y: auto;
            padding-right: 2px;
        }
        @media (max-width: 900px) {
            .profile-hub-shell {
                padding: 14px;
            }
            .profile-hub-hero {
                grid-template-columns: 86px 1fr;
                padding: 12px;
            }
            .profile-hub-avatar {
                width: 86px;
                height: 86px;
            }
            .profile-hub-primary-track {
                grid-column: 1 / -1;
                width: 100%;
                justify-items: start;
            }
            .profile-hub-primary-title {
                font-size: 1.2rem;
            }
            .profile-hub-primary-cover {
                width: 64px;
                height: 64px;
            }
            .profile-hub-title {
                font-size: clamp(1.8rem, 8vw, 2.8rem);
            }
            .profile-hub-stats-grid {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .profile-hub-compare-head {
                grid-template-columns: 1fr;
            }
            .profile-hub-main-grid {
                grid-template-columns: 1fr;
            }
            .profile-hub-section-head {
                align-items: start;
            }
            .profile-hub-section-link {
                font-size: 0.8rem;
                padding-top: 6px;
            }
            .profile-hub-artist-rail {
                grid-template-columns: repeat(auto-fill, minmax(110px, 124px));
                gap: 10px;
            }
            .profile-hub-artist-item {
                width: 124px;
            }
            .profile-hub-artist-cover {
                max-width: 124px;
            }
            .profile-hub-song-item {
                grid-template-columns: 24px minmax(0, 1fr);
                gap: 8px;
            }
            .profile-hub-song-album,
            .profile-hub-song-metric,
            .profile-hub-song-time {
                display: none;
            }
            .profile-hub-compare-row {
                grid-template-columns: 1.2fr repeat(3, minmax(0, 1fr));
                font-size: 0.76rem;
                gap: 6px;
                padding: 8px;
            }
            .auth-file-row {
                grid-template-columns: 1fr;
            }
        }
        /* Steam-like Profile Hub override */
        .profile-hub-overlay {
            background:
                radial-gradient(120% 120% at 100% 0%, color-mix(in srgb, var(--theme-c2) 20%, transparent), transparent 48%),
                linear-gradient(180deg, color-mix(in srgb, var(--bg-color) 92%, black 8%), color-mix(in srgb, var(--sub-alt-color) 94%, var(--bg-color) 6%));
        }
        .profile-hub-shell {
            max-width: 1320px;
            border: 1px solid color-mix(in srgb, var(--text-color) 16%, transparent);
            border-radius: 14px;
            background: linear-gradient(180deg, color-mix(in srgb, var(--sub-alt-color) 92%, transparent), color-mix(in srgb, var(--bg-color) 90%, transparent));
            box-shadow: 0 20px 56px color-mix(in srgb, var(--bg-color) 48%, transparent);
        }
        .profile-hub-kicker {
            color: color-mix(in srgb, var(--text-color) 84%, transparent);
            font-size: 0.82rem;
            letter-spacing: 0.11em;
            font-weight: 700;
        }
        .profile-hub-close {
            border-radius: 6px;
            font-size: 0.75rem;
            border-color: color-mix(in srgb, var(--text-color) 24%, transparent);
            background: color-mix(in srgb, var(--bg-color) 32%, transparent);
            color: color-mix(in srgb, var(--text-color) 86%, transparent);
        }
        .profile-hub-close:hover {
            color: var(--text-color);
            border-color: color-mix(in srgb, var(--main-color) 55%, transparent);
        }
        .profile-hub-close-icon { color: var(--main-color); }
        .profile-hub-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 12px;
            align-items: start;
        }
        .profile-hub-column-main,
        .profile-hub-column-side { display: grid; gap: 12px; min-width: 0; }
        .profile-hub-hero {
            border-radius: 10px;
            border-color: color-mix(in srgb, var(--text-color) 16%, transparent);
            background: color-mix(in srgb, var(--theme-c1) 72%, var(--bg-color) 28%);
            grid-template-columns: 104px minmax(0, 1fr) minmax(220px, 280px);
            padding: 16px;
            gap: 14px;
        }
        .profile-hub-hero::after {
            background: linear-gradient(95deg, color-mix(in srgb, var(--theme-c1) 86%, transparent) 0%, color-mix(in srgb, var(--theme-c2) 46%, transparent) 56%, color-mix(in srgb, var(--bg-color) 92%, transparent) 100%);
        }
        .profile-hub-hero-bg { opacity: 0.24; filter: saturate(0.95) contrast(1.08) brightness(0.72); }
        .profile-hub-avatar {
            width: 104px; height: 104px; border-radius: 4px;
            border: 2px solid color-mix(in srgb, var(--main-color) 48%, transparent);
            box-shadow: 0 8px 20px color-mix(in srgb, var(--bg-color) 50%, transparent);
        }
        .profile-hub-label {
            color: color-mix(in srgb, var(--text-color) 84%, transparent);
            font-size: 0.72rem;
            letter-spacing: 0.09em;
            text-transform: uppercase;
            font-weight: 700;
        }
        .profile-hub-title { color: var(--text-color); font-size: clamp(1.8rem, 3.2vw, 3.1rem); }
        .profile-hub-level { color: var(--main-color); font-size: 0.76rem; letter-spacing: 0.08em; }
        .profile-hub-email { color: color-mix(in srgb, var(--text-color) 84%, transparent); font-size: 0.9rem; }
        .profile-hub-bio { color: color-mix(in srgb, var(--text-color) 88%, transparent); font-size: 0.9rem; }
        .profile-hub-primary-track {
            border-radius: 8px;
            border-color: color-mix(in srgb, var(--text-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 64%, transparent);
            grid-template-columns: 76px minmax(0, 1fr);
            grid-template-areas:
                "cover kicker"
                "cover title"
                "cover artist"
                "time  time";
            gap: 3px 10px;
        }
        .profile-hub-primary-kicker { grid-area: kicker; color: color-mix(in srgb, var(--text-color) 78%, transparent); font-size: 0.66rem; }
        .profile-hub-primary-title { grid-area: title; font-size: 1.05rem; color: var(--text-color); line-height: 1.1; }
        .profile-hub-primary-artist { grid-area: artist; font-size: 0.78rem; color: color-mix(in srgb, var(--text-color) 74%, transparent); }
        .profile-hub-primary-cover { grid-area: cover; width: 76px; height: 76px; border-radius: 4px; }
        .profile-hub-primary-time { grid-area: time; border-top-color: color-mix(in srgb, var(--text-color) 22%, transparent); }
        .profile-hub-typing-clock { font-size: 1.18rem; color: var(--text-color); }
        .profile-hub-sidecard,
        .profile-hub-compare,
        .profile-hub-card {
            border-radius: 10px;
            border-color: color-mix(in srgb, var(--text-color) 15%, transparent);
            background: color-mix(in srgb, var(--bg-color) 60%, transparent);
        }
        .profile-hub-side-title {
            color: color-mix(in srgb, var(--text-color) 86%, transparent);
            font-size: 0.74rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            margin-bottom: 10px;
            font-weight: 700;
        }
        .profile-hub-stats-grid { grid-template-columns: 1fr; gap: 8px; }
        .profile-hub-stat {
            border-radius: 8px;
            border-color: color-mix(in srgb, var(--text-color) 20%, transparent);
            background: color-mix(in srgb, var(--bg-color) 76%, transparent);
            grid-template-columns: 1fr auto;
            align-items: center;
            padding: 8px 10px;
        }
        .profile-hub-stat span { color: color-mix(in srgb, var(--text-color) 80%, transparent); font-size: 0.64rem; letter-spacing: 0.07em; }
        .profile-hub-stat strong { color: var(--text-color); font-size: 1.2rem; }
        .profile-hub-main-grid { gap: 12px; }
        .profile-hub-section-title { color: var(--text-color); font-size: 1.05rem; }
        .profile-hub-section-subtitle { color: color-mix(in srgb, var(--text-color) 70%, transparent); font-size: 0.78rem; }
        .profile-hub-section-link { color: color-mix(in srgb, var(--text-color) 80%, transparent); font-size: 0.78rem; }
        .profile-hub-section-link:hover { color: var(--text-color); }
        .profile-hub-artist-rail { grid-template-columns: repeat(auto-fill, minmax(126px, 1fr)); gap: 10px; }
        .profile-hub-artist-item {
            border: 1px solid color-mix(in srgb, var(--text-color) 16%, transparent);
            border-radius: 8px;
            padding: 8px;
            background: color-mix(in srgb, var(--bg-color) 70%, transparent);
            width: 100%;
        }
        .profile-hub-artist-cover {
            border-radius: 4px;
            border-color: color-mix(in srgb, var(--text-color) 18%, transparent);
            margin-bottom: 6px;
        }
        .profile-hub-artist-name { color: var(--text-color); font-size: 0.83rem; }
        .profile-hub-artist-meta { color: color-mix(in srgb, var(--text-color) 74%, transparent); font-size: 0.72rem; }
        .profile-hub-song-item {
            grid-template-columns: 24px minmax(0, 1fr) minmax(120px, 0.7fr) minmax(110px, max-content) minmax(58px, max-content);
            gap: 8px;
            border-top-color: color-mix(in srgb, var(--text-color) 15%, transparent);
        }
        .profile-hub-song-rank { color: color-mix(in srgb, var(--text-color) 86%, transparent); font-size: 0.84rem; }
        .profile-hub-song-title { color: var(--text-color); font-size: 0.88rem; }
        .profile-hub-song-artist { color: color-mix(in srgb, var(--text-color) 78%, transparent); font-size: 0.74rem; }
        .profile-hub-song-album { color: color-mix(in srgb, var(--text-color) 78%, transparent); font-size: 0.78rem; }
        .profile-hub-song-metric { color: var(--main-color); font-size: 0.72rem; }
        .profile-hub-song-time { color: color-mix(in srgb, var(--text-color) 74%, transparent); font-size: 0.72rem; }
        .profile-hub-compare-head { grid-template-columns: 1fr; }
        .profile-hub-compare-head h3 { color: color-mix(in srgb, var(--text-color) 86%, transparent); font-size: 0.72rem; }
        .profile-hub-compare-select { min-height: 36px; font-size: 0.82rem; }
        .profile-hub-compare-grid { border-color: color-mix(in srgb, var(--text-color) 18%, transparent); background: color-mix(in srgb, var(--bg-color) 72%, transparent); }
        .profile-hub-compare-row { font-size: 0.74rem; padding: 8px 9px; }
        .profile-hub-compare-row.head { background: color-mix(in srgb, var(--sub-alt-color) 74%, transparent); color: color-mix(in srgb, var(--text-color) 85%, transparent); font-size: 0.66rem; }
        .profile-hub-compare-metric,
        .profile-hub-compare-you,
        .profile-hub-compare-friend { color: var(--text-color); }
        .profile-hub-compare-diff { color: color-mix(in srgb, var(--text-color) 66%, transparent); }
        .profile-hub-compare-diff.up { color: var(--main-color); }
        .profile-hub-compare-diff.down { color: var(--error-soft-text); }

        @media (max-width: 1060px) {
            .profile-hub-layout { grid-template-columns: 1fr; }
            .profile-hub-column-side { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 900px) {
            .profile-hub-column-side { grid-template-columns: 1fr; }
            .profile-hub-hero {
                grid-template-columns: 82px 1fr;
                grid-template-areas:
                    "avatar meta"
                    "feature feature";
                gap: 10px;
                padding: 12px;
            }
            .profile-hub-avatar { grid-area: avatar; width: 82px; height: 82px; }
            .profile-hub-meta { grid-area: meta; }
            .profile-hub-primary-track { grid-area: feature; }
            .profile-hub-title { font-size: clamp(1.4rem, 8vw, 2.2rem); }
        }

        .auth-delete-btn {
            width: 100%;
            border: 1px solid color-mix(in srgb, var(--error-color) 35%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 7%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--error-color) 8%, transparent);
            color: var(--error-soft-text);
            border-radius: 8px;
            padding: 12px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: 700;
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .auth-delete-btn:hover {
            border-color: color-mix(in srgb, var(--error-color) 60%, transparent);
            background: color-mix(in srgb, var(--error-color) 15%, transparent);
        }
        .theme-preview { width: 20px; height: 20px; border-radius: 50%; }
        
        /* Preset Buttons */
        .preset-btn {
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 6%, transparent), color-mix(in srgb, #000000 4%, transparent)),
                color-mix(in srgb, var(--bg-color) 18%, transparent);
            border: 1px solid color-mix(in srgb, #ffffff 10%, transparent);
            box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
            backdrop-filter: blur(4px) saturate(106%);
            -webkit-backdrop-filter: blur(4px) saturate(106%);
            transition: all 0.2s;
        }
        .preset-btn:hover {
            border-color: color-mix(in srgb, #ffffff 20%, transparent);
            background:
                linear-gradient(165deg, color-mix(in srgb, #ffffff 8%, transparent), color-mix(in srgb, #000000 5%, transparent)),
                color-mix(in srgb, var(--main-color) 8%, transparent);
        }

        /* Vocab List */
        .vocab-item {
            background: var(--sub-alt-color);
            border: 1px solid var(--sub-color);
            border-radius: 6px;
            padding: 8px 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 6px;
            transition: border-color 0.2s;
        }
        .vocab-item:hover { border-color: var(--main-color); }

        /* Virtual Keyboard (Visual Only - Minimalist) */
        #virtual-keyboard {
            width: 100%;
            max-width: 600px;
            margin: 2rem auto 1rem;
            padding: 10px;
            background: transparent;
            display: flex;
            flex-direction: column;
            align-items: center;
            user-select: none;
            opacity: 0.6;
            transition: opacity 0.3s;
            pointer-events: none; /* Disable clicking */
        }

        @media (max-width: 768px) {
            body {
                padding-bottom: 1rem;
            }
            header {
                display: flex;
                flex-direction: row !important;
                align-items: center;
                justify-content: space-between;
                gap: 8px;
                flex-wrap: nowrap;
                padding: 10px 12px !important;
            }
            #toast-container {
                right: 12px;
                left: 12px;
                bottom: 12px;
            }
            .header-brand {
                width: auto;
                min-width: 0;
                justify-content: flex-start;
                padding-right: 0;
                margin-left: 0;
                flex: 1 1 auto;
            }
            .header-actions {
                width: auto;
                max-width: calc(100vw - 170px);
                align-self: center;
                justify-content: flex-end;
                gap: 6px;
                padding: 5px 8px;
                border-radius: 999px;
                background: color-mix(in srgb, var(--text-color) 5%, transparent);
                border: 1px solid color-mix(in srgb, var(--text-color) 14%, transparent);
                overflow: visible;
                flex-shrink: 1;
                margin-left: auto;
            }
            .mobile-config-bar {
                width: 100%;
                max-width: 100%;
                margin-right: auto;
                margin-left: auto;
            }
            .config-bar {
                height: auto;
                min-height: 0;
                width: 100%;
                max-width: 100%;
                padding: 8px 10px;
                gap: 8px;
                margin-bottom: 1rem;
                justify-content: flex-start;
                display: grid;
                grid-template-columns: 1fr;
                border-radius: 10px;
                box-sizing: border-box;
            }
            .config-bar .separator {
                display: none;
            }
            .config-bar .mode-group {
                gap: 10px;
                width: 100%;
                max-width: 100%;
                overflow-x: auto;
                overflow-y: hidden;
                flex-wrap: nowrap;
                padding: 2px 2px 6px;
                white-space: nowrap;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .config-bar .mode-group::-webkit-scrollbar {
                display: none;
            }
            .config-bar .mode-group:first-of-type {
                border-bottom: 1px solid color-mix(in srgb, var(--sub-color) 20%, transparent);
                padding-bottom: 8px;
                margin-bottom: 2px;
            }
            .nav-link {
                font-size: 0.78rem;
                gap: 0.35rem;
                flex-shrink: 0;
                min-height: 34px;
                padding-inline: 12px;
            }
            .mode-session-prefs-popover {
                right: 0;
                min-width: 150px;
            }
            .mode-session-prefs-btn {
                width: 32px;
                height: 32px;
            }
            .nav-icon {
                width: 15px;
                height: 15px;
            }
            .header-avatar-btn {
                width: 38px;
                height: 38px;
                flex-shrink: 0;
            }
            .header-status-stack {
                display: none;
            }
            .header-status-pill {
                font-size: 0.56rem;
                padding: 3px 7px;
            }
            .btn-ghost {
                width: 32px;
                height: 32px;
                padding: 0;
            }
            .artist-catalog-name {
                font-size: 1.08rem;
            }
            .artist-catalog-meta {
                font-size: 0.72rem;
            }
            .search-discovery-chip {
                font-size: 0.72rem;
                padding: 6px 10px;
                white-space: nowrap;
                flex: 0 0 auto;
            }
            .search-discovery-chips {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 4px;
            }
            .artist-songs-list {
                max-height: 44vh;
            }
            .search-controls {
                gap: 10px;
            }
            .search-controls #btn-fetch-action {
                width: 100%;
                max-width: 320px;
                align-self: center;
                margin-top: 0;
            }
            .app-modal-card,
            .app-modal-card--profile,
            .app-modal-card--settings,
            .app-modal-card--info {
                width: calc(100vw - 16px);
                max-height: 93vh;
                margin: 8px;
            }
            .app-modal-header {
                padding: 14px 14px 12px;
            }
            .app-modal-body {
                padding: 10px 14px 14px;
            }
            .app-modal-title {
                font-size: 1.22rem;
            }
            .app-modal-close {
                padding: 6px 9px;
            }
            .app-modal-close span:last-child {
                display: none;
            }
            .modal-surface-block {
                padding: 9px;
            }
            .settings-shortcuts-grid {
                grid-template-columns: 1fr;
            }
            .account-sections-grid {
                grid-template-columns: 1fr;
            }
            .friends-utilities-layout {
                grid-template-columns: 1fr;
            }
            .utility-mini-stats-grid {
                grid-template-columns: 1fr;
            }
            #auth-stats-section.account-panel-section,
            #auth-duel-section.account-panel-section {
                grid-column: auto;
            }
            #auth-friends-section.account-panel-section {
                grid-column: auto;
            }
            .favorites-tab-controls {
                grid-template-columns: 1fr;
            }
            .favorites-cards-grid {
                grid-template-columns: 1fr;
            }
            .artist-spotlight-hero {
                grid-template-columns: 1fr;
                justify-items: center;
                text-align: center;
            }
            .artist-spotlight-header {
                align-items: center;
            }
            .artist-spotlight-close {
                padding: 7px 10px;
            }
            .artist-spotlight-close span:last-child {
                display: none;
            }
            .artist-spotlight-grid {
                grid-template-columns: 1fr;
            }
            header .text-2xl {
                font-size: 1.22rem;
                line-height: 1.05;
                white-space: nowrap;
            }
            header .text-\[10px\] {
                font-size: 0.56rem;
                letter-spacing: 0.03em;
            }
            .search-controls {
                width: 100%;
                align-items: stretch;
            }
            .search-controls #btn-fetch-action {
                width: 100%;
                max-width: 320px;
                align-self: center;
                margin-top: 0;
            }
            #game-area {
                gap: 0.65rem;
            }
            .stats-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
                margin-bottom: 1rem;
                padding-bottom: 0.75rem;
            }
            .stats-header > div:first-child {
                width: 100%;
            }
            .stats-header > div:first-child > .flex.items-center {
                gap: 10px;
                flex-wrap: wrap;
            }
            .stats-header > div:first-child > .flex.items-center > .flex.gap-2 {
                margin-left: 0;
                padding-left: 0;
                border-left: 0;
            }
            #current-song-title {
                font-size: clamp(1.9rem, 7.2vw, 2.35rem);
                line-height: 1.05;
            }
            .stats-info {
                width: 100%;
                display: grid;
                grid-template-columns: repeat(2, minmax(0, 1fr));
                gap: 10px 14px;
            }
            .stat-group {
                min-width: 0;
            }
            .stat-value.large {
                font-size: 2rem;
            }
            .stat-value.medium {
                font-size: 1.25rem;
            }
            #words-wrapper {
                height: 52vh;
                min-height: 280px;
                font-size: 1.95rem;
                line-height: 1.45;
            }
            #virtual-keyboard {
                margin: 1rem auto 0.65rem;
                max-width: 100%;
                overflow-x: auto;
                padding: 6px 0;
            }
            .video-pip-panel {
                right: 8px;
                bottom: 8px;
                width: min(152px, 52vw);
                border-radius: 10px;
            }
            .video-pip-header {
                padding: 5px 8px;
                gap: 8px;
            }
            .video-pip-body {
                padding: 6px;
            }
            .video-pip-title-link {
                font-size: 0.72rem;
            }
            .video-pip-subtitle {
                font-size: 0.62rem;
            }
        }
        /* Always highlight on key press to serve as guide */
        
        .kb-row {
            display: flex;
            justify-content: center;
            margin-bottom: 4px;
            gap: 4px;
            width: 100%;
        }

        .kb-row--r2 { padding-left: 24px; }
        .kb-row--r3 { padding-left: 32px; }
        .kb-row--r4 { padding-left: 44px; }
        .kb-row--r5 { padding-left: 84px; }

        .kb-key {
            background: transparent;
            color: var(--sub-color);
            border: 1px solid var(--sub-color);
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 500;
            padding: 6px 0;
            width: 42px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.05s ease-out;
            line-height: 1;
            font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
        }

        .kb-key--meta {
            font-size: 0.68rem;
            letter-spacing: 0.01em;
            text-transform: none;
        }

        .kb-key--tab { width: 64px; }
        .kb-key--caps { width: 76px; }
        .kb-key--enter { width: 84px; }
        .kb-key--shift { width: 98px; }
        .kb-key--backspace { width: 92px; }
        .kb-key--space { width: 320px; }

        /* Active State (Correct) */
        .kb-key.active {
            background: var(--main-color);
            color: var(--btn-text-color);
            border-color: var(--main-color);
            transform: scale(0.95);
            box-shadow: 0 0 8px var(--main-color);
        }

        /* Error State (Incorrect) */
        .kb-key.error {
            background: var(--error-color);
            color: var(--text-color);
            border-color: var(--error-color);
            transform: scale(0.95);
            box-shadow: 0 0 8px var(--error-color);
        }

        .kb-backspace { border-color: var(--error-extra-color); color: var(--error-color); }
        .kb-backspace.active { background: var(--main-color); color: var(--btn-text-color); border-color: var(--main-color); }
        
        /* Make sure it's smaller on mobile but still visible */
        @media (max-width: 600px) {
            .search-discovery-section {
                padding: 7px;
            }
            .search-mini-artist-card {
                min-width: 104px;
                max-width: 112px;
            }
            .search-mini-song-card {
                grid-template-columns: 36px 1fr;
                min-width: 190px;
                max-width: 220px;
            }
            .search-mini-song-card img {
                width: 36px;
                height: 36px;
            }
            .stats-info {
                display: flex;
                align-items: flex-end;
                justify-content: space-between;
                gap: 10px;
                flex-wrap: nowrap;
                overflow-x: auto;
                width: 100%;
                padding-bottom: 2px;
            }
            .stats-info .stat-group {
                min-width: max-content;
            }
            .stats-info .stat-label {
                display: none;
            }
            .stats-info .stat-value.medium {
                font-size: 1.05rem;
            }
            .stats-info .stat-value.large {
                font-size: 1.7rem;
            }
            #virtual-keyboard {
                max-width: 100%;
                margin: 0.75rem 0 0.5rem;
            }
            .kb-key {
                width: clamp(20px, 6.2vw, 30px);
                font-size: 0.66rem;
                height: 30px;
            }
            .kb-key--tab { width: clamp(32px, 9vw, 48px); }
            .kb-key--caps { width: clamp(40px, 10vw, 56px); }
            .kb-key--enter { width: clamp(44px, 10.5vw, 60px); }
            .kb-key--shift { width: clamp(48px, 11vw, 66px); }
            .kb-key--backspace { width: clamp(44px, 10.5vw, 60px); }
            .kb-key--space { width: clamp(130px, 44vw, 260px); }
            .kb-row--r2 { padding-left: 10px; }
            .kb-row--r3 { padding-left: 14px; }
            .kb-row--r4 { padding-left: 20px; }
            .kb-row--r5 { padding-left: 36px; }
            .video-pip-panel {
                width: min(134px, 48vw);
            }
            .video-pip-cover-link {
                border-radius: 6px;
            }
            .video-pip-subtitle {
                display: none;
            }
        }