/* Combined styles for Lyrics page and Group Player
   Moved from inline <style> blocks in views for reuse and cleanliness */

/* Title container */
.title-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 8px;
    padding: 24px;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-bottom: 24px;
}
.title-container h1 {
    color: var(--text-primary);
    font-weight: 700;
    margin: 0;
}
.subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}
.subtitle a { color: var(--primary-color); text-decoration: none; transition: color var(--transition-fast); }
.subtitle a:hover { color: var(--primary-hover); text-decoration: underline; }
.song-detail-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin: 0;
}
.song-detail-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    max-width: 100%;
    padding: 4px 10px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: color-mix(in srgb, var(--bg-secondary) 82%, transparent);
    color: var(--text-secondary);
    line-height: 1.35;
}
.song-detail-meta-primary {
    border-color: color-mix(in srgb, var(--primary-color) 42%, var(--border-color));
    background: color-mix(in srgb, var(--primary-color) 12%, var(--bg-primary));
    color: var(--text-primary);
}
.song-detail-meta-item strong {
    color: inherit;
    white-space: nowrap;
}
.song-detail-meta-item span:last-child,
.song-detail-meta-item a {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.emoji { filter: drop-shadow(2px 2px 3px rgba(0,0,0,0.2)); }

/* Main content layout */
.main-content {
    display: grid;
    grid-template-columns: minmax(360px, 1.05fr) minmax(320px, 0.95fr);
    gap: 24px;
    align-items: flex-start;
}
.video-section {
    width: 100%;
    min-width: 0;
}
.lyrics-section {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.lyrics-avatar-rail {
    grid-column: 2;
    min-width: 0;
}
.feature-section {
    width: 100%;
    margin-bottom: 20px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
}

/* Video container */
.video-container {
    display: flex; justify-content: center; align-items: center; position: relative; border-radius: 12px;
    padding: 0; box-shadow: var(--shadow-lg); background-color: var(--video-bg); overflow: hidden; border: 1px solid var(--border-color);
    margin-bottom: 20px; aspect-ratio: 16 / 9; width: 100%;
}
video, #youtube-player, #youtube-player-right, #yt-player { width: 100%; height: 100%; max-width: 100%; display: block; }

.karaoke-audio-panel {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    margin: -4px 0 16px;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
}
.karaoke-audio-panel[hidden] { display: none; }
.karaoke-audio-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex: 0 0 auto;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
}
.karaoke-source-toggle {
    display: inline-flex;
    flex: 0 0 auto;
    padding: 3px;
    border: 1px solid var(--border-color);
    border-radius: 9px;
    background: var(--bg-secondary);
}
.karaoke-source-button {
    min-height: 32px;
    padding: 5px 12px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}
.karaoke-source-button:hover:not(:disabled) {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}
.karaoke-source-button.active {
    color: var(--text-primary);
    background: var(--accent-orange);
    box-shadow: var(--shadow-sm);
}
.karaoke-source-button:disabled {
    opacity: 0.42;
    cursor: not-allowed;
}
.karaoke-audio-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-hover);
}
.karaoke-audio-panel audio {
    flex: 1 1 auto;
    min-width: 0;
    height: 36px;
}
.karaoke-audio-panel audio:not([controls]) {
    display: none;
}
.karaoke-vocals-sync-control {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
    min-height: 32px;
}
.karaoke-vocals-sync-control[hidden] {
    display: none;
}
.karaoke-vocals-sync-label,
.karaoke-vocals-sync-value {
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}
.karaoke-vocals-sync-value {
    min-width: 48px;
    text-align: center;
    color: var(--text-primary);
}
.karaoke-vocals-sync-button,
.karaoke-vocals-sync-reset {
    min-width: 32px;
    min-height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 7px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}
.karaoke-vocals-sync-button:hover,
.karaoke-vocals-sync-reset:hover {
    border-color: var(--accent-orange);
    background: var(--bg-tertiary);
}
.karaoke-vocals-sync-reset {
    padding: 4px 9px;
}

/* Comments */
.comments-section {
    width: 100%; padding: 20px; border-radius: 12px; box-shadow: var(--shadow-md);
    background-color: var(--bg-primary); border: 1px solid var(--border-color);
}
.comments-section-wide {
    margin-top: 24px;
}
.comments-section h3 { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--text-primary); display: flex; align-items: center; gap: 8px; }
#comments-container { max-height: 320px; overflow-y: auto; padding: 12px; border-radius: 10px; background: var(--bg-secondary); border: 1px solid var(--border-color); margin-bottom: 16px; }
.comment { background: var(--bg-primary); padding: 14px; margin-bottom: 12px; border-radius: 10px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); transition: all var(--transition-fast); }
.comment:hover { box-shadow: var(--shadow-md); border-color: var(--border-hover); }
.comment .avatar { width: 32px; height: 32px; border-radius: 50%; margin-right: 10px; border: 2px solid var(--border-color); vertical-align: middle; }
.comment strong { color: var(--primary-color); font-size: 14px; font-weight: 600; }
.comment p { margin: 8px 0; font-size: 15px; color: var(--text-primary); line-height: 1.5; }
.timestamp { font-size: 12px; color: var(--text-tertiary); }
.private-label { background: linear-gradient(135deg, var(--secondary-color), var(--primary-color)); color: white; padding: 3px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; margin-left: 8px; display: inline-block; }
.no-comments { text-align: center; color: var(--text-tertiary); padding: 20px; font-size: 15px; }

/* Admin reply */
.admin-reply-form { margin-top: 12px; display: flex; gap: 8px; }
.admin-reply-form input { flex: 1; padding: 8px 12px; border: 2px solid var(--border-color); border-radius: 8px; background-color: var(--bg-secondary); color: var(--text-primary); font-size: 14px; transition: all var(--transition-fast); }
.admin-reply-form input:focus { outline: none; border-color: var(--primary-color); background-color: var(--bg-primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); }
.admin-reply-form button { padding: 8px 16px; background: linear-gradient(135deg, var(--primary-color), var(--primary-hover)); color: white; border: none; border-radius: 8px; cursor: pointer; font-weight: 600; transition: all var(--transition-fast); }
.admin-reply-form button:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.admin-replies { margin-top: 12px; padding-left: 20px; border-left: 3px solid var(--primary-light); }
.admin-reply { background-color: var(--bg-tertiary); padding: 12px; border-radius: 8px; margin-top: 8px; border: 1px solid var(--border-color); }
.admin-reply strong { color: var(--accent-orange); }
.admin-reply p { color: var(--text-secondary); }

/* Comment form */
.comment-form { display: flex; align-items: stretch; gap: 15px; width: 100%; padding: 16px; background: var(--bg-secondary); border-radius: 12px; box-shadow: var(--shadow-sm); border: 1px solid var(--border-color); }
#comment-input, #comment-input-right { flex: 1; border: 2px solid var(--border-color); border-radius: 10px; padding: 12px; font-size: 15px; background-color: var(--bg-primary); color: var(--text-primary); transition: all var(--transition-fast); min-height: 60px; resize: vertical; }
#comment-input:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(99,102,241,0.1); outline: none; }
#comment-input::placeholder { color: var(--text-tertiary); }

.comment-options { display: flex; flex-direction: column; justify-content: space-between; align-items: center; min-width: 130px; min-height: 60px; }
.switch { display:flex; align-items:center; justify-content:center; width:50px; height:26px; position:relative; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--bg-tertiary); transition: 0.3s; border-radius: 26px; border: 2px solid var(--border-color); }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 2px; bottom: 2px; background-color: var(--bg-primary); transition: 0.3s; border-radius: 50%; }
input:checked + .slider { background-color: var(--accent-orange); border-color: var(--accent-orange); }
input:checked + .slider:before { transform: translateX(24px); }
input:disabled + .slider { opacity: 0.5; cursor: not-allowed; }
.comment-options .private-label { font-size: 13px; color: var(--text-secondary); font-weight: 600; margin-top: 4px; background: none; padding: 0; }
#submit-comment, #submit-comment-right { padding: 10px 16px; min-width: 130px; font-size: 15px; font-weight: 700; color: white; background: linear-gradient(135deg, var(--accent-orange), var(--accent-orange-hover)); border: none; border-radius: 10px; cursor: pointer; transition: all var(--transition-normal); box-shadow: var(--shadow-sm); }
#submit-comment:hover, #submit-comment-right:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* Lyrics card */
.lyrics-card { min-width: 0; background-color: var(--bg-primary); border-radius: 12px; padding: 20px; box-shadow: var(--shadow-md); border: 1px solid var(--border-color); }
.feature-toggles { margin-bottom: 0; }
.toggle-wrapper { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 20px; padding: 12px 16px; background: var(--bg-secondary); border-radius: 12px; border: 1px solid var(--border-color); flex-wrap: wrap; }
.toggle-container { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--text-primary); cursor: pointer; user-select: none; white-space: nowrap; }
.toggle-switch { position: relative; width: 50px; height: 26px; background: var(--bg-tertiary); border-radius: 26px; transition: background 0.3s; cursor: pointer; border: 2px solid var(--border-color); }
.toggle-switch::before { content: ''; position: absolute; width: 18px; height: 18px; background: var(--bg-primary); border-radius: 50%; top: 2px; left: 3px; transition: transform 0.3s; box-shadow: var(--shadow-sm); }
#sync-lyrics-toggle:checked + .toggle-switch, #show-romanization-toggle:checked + .toggle-switch, #sync-lyrics-toggle-right:checked + .toggle-switch, #show-romanization-toggle-right:checked + .toggle-switch, #edit-timestamp-toggle:checked + .toggle-switch { background: var(--accent-orange); border-color: var(--accent-orange); }
#sync-lyrics-toggle:checked + .toggle-switch::before, #show-romanization-toggle:checked + .toggle-switch::before, #sync-lyrics-toggle-right:checked + .toggle-switch::before, #show-romanization-toggle-right:checked + .toggle-switch::before, #edit-timestamp-toggle:checked + .toggle-switch::before { transform: translateX(24px); }
#sync-lyrics-toggle, #show-romanization-toggle, #sync-lyrics-toggle-right, #show-romanization-toggle-right, #edit-timestamp-toggle { display: none; }

/* Lyrics container */
.lyrics-container { display: flex; justify-content: center; gap: 20px; }
.lyric-card { width: 100%; max-width: 700px; padding: 20px; border-radius: 12px; background: var(--bg-secondary); border: 1px solid var(--border-color); text-align: center; max-height: 600px; overflow-y: auto; }
.lyrics-line { margin: 16px 0; padding: 12px; opacity: 1; position: relative; border-radius: 8px; transition: all var(--transition-normal); }
.lyrics-line:hover { opacity: 1; background-color: var(--bg-tertiary); }
.lyrics-line.highlight { background: linear-gradient(135deg, rgba(255, 135, 34, 0.15), rgba(251, 191, 36, 0.15)); opacity: 1; box-shadow: inset 4px 0 0 var(--accent-orange), var(--shadow-sm); }
.jp-line { font-size: 18px; font-weight: 600; color: var(--text-primary); line-height: 2.2; margin-bottom: 4px; }
.roman-line { font-size: 14px; color: var(--primary-color); margin-bottom: 4px; font-weight: 500; }
.cn-line { font-size: 15px; color: var(--text-secondary); margin-top: 4px; }
.lyrics-container rt, .lyrics-container rp { font-size: 11px; color: var(--primary-color) !important; font-weight: 600; }
.controls { position: absolute; bottom: 8px; right: 8px; display: flex; gap: 6px; opacity: 0; transition: opacity var(--transition-fast); }
.lyrics-line:hover .controls { opacity: 1; }
.controls button { padding: 6px 8px; border: 1px solid var(--border-color); background: var(--bg-primary); cursor: pointer; border-radius: 6px; transition: all var(--transition-fast); color: var(--text-secondary); }
.controls button:hover { background: var(--primary-color); color: white; border-color: var(--primary-color); transform: scale(1.1); }
.controls button.active { background: var(--accent-orange); color: white; border-color: var(--accent-orange); }
.controls button .fas { font-size: 14px; }
.report-bug:hover { background: var(--danger-color) !important; border-color: var(--danger-color) !important; }

#navigation-bar { position: fixed; top: 50%; right: 20px; transform: translateY(-50%); display: flex; flex-direction: column; gap: 12px; z-index: 1000; }
#navigation-bar button { padding: 12px 16px; background: var(--primary-color); color: white; border: none; border-radius: 10px; cursor: pointer; font-weight: 600; box-shadow: var(--shadow-md); transition: all var(--transition-normal); }
#navigation-bar button:hover { background: var(--primary-hover); transform: translateX(-4px); box-shadow: var(--shadow-lg); }

.tabs { display: flex; justify-content: center; margin: 20px 0; gap: 12px; }
.tab-button { padding: 10px 24px; border: 2px solid var(--border-color); background-color: var(--bg-secondary); border-radius: 10px; cursor: pointer; font-weight: 600; color: var(--text-primary); transition: all var(--transition-normal); }
.tab-button:hover { background-color: var(--bg-tertiary); border-color: var(--border-hover); }
.tab-button.active { background: var(--accent-orange); color: var(--text-primary); border-color: var(--accent-orange); box-shadow: var(--shadow-md); }

/* Playlist specific */
.list-group-item { display: flex; gap: 12px; align-items: center; }
.playlist-item.active { background: linear-gradient(135deg, rgba(255,135,34,0.08), rgba(251,191,36,0.08)); border-left: 4px solid var(--accent-orange); }
.playlist-item img { border-radius: 6px; object-fit: cover; }

@media (min-width: 1200px) {
    .main-content {
        grid-template-columns: minmax(520px, 720px) minmax(420px, 1fr);
    }
}

@media (min-width: 1500px) {
    .main-content {
        grid-template-columns: minmax(560px, 704px) minmax(390px, 420px) minmax(260px, 1fr);
        gap: 24px;
        width: calc(100vw - ((100vw - 1140px) / 2) - 24px);
        max-width: none;
        margin-inline: 0;
    }

    .lyrics-avatar-rail {
        grid-column: 3;
    }
}

/* Responsive */
@media (max-width: 991.98px) {
    .title-container,
    .feature-section,
    .lyrics-section,
    .lyrics-card,
    .lyrics-avatar-rail,
    .comments-section {
        border-radius: 14px;
    }

    .video-section,
    .feature-section,
    .lyrics-section,
    .lyrics-card,
    .lyrics-avatar-rail,
    .comments-section-wide {
        flex: none;
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }

    .video-container {
        position: relative;
        width: 100%;
        max-width: 100%;
    }

    .lyrics-container,
    .lyric-card {
        width: 100%;
        max-width: 100%;
        min-width: 0;
    }
}

@media (max-width: 767.98px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 16px;
        width: 100%;
    }

    .lyrics-avatar-rail {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .title-container { padding: 16px; margin-bottom: 16px; }
    .title-container h1 { font-size: clamp(1.25rem, 7vw, 1.55rem); line-height: 1.25; overflow-wrap: anywhere; }
    .subtitle { font-size: 14px; overflow-wrap: anywhere; }
    .subtitle > span { display: inline-block; margin-top: 4px; }
    .feature-section { padding: 14px; margin-bottom: 14px; }
    .lyrics-card { width: 100%; max-width: 100%; padding: 12px; }
    .lyric-card { max-height: min(62vh, 520px); font-size: 14px; padding: 12px; }
    .lyrics-line { margin: 12px 0; padding: 10px 8px; }
    .jp-line { font-size: 16px; line-height: 2; overflow-wrap: anywhere; }
    .cn-line { font-size: 13px; overflow-wrap: anywhere; }
    .roman-line { font-size: 12px; overflow-wrap: anywhere; }
    .controls { position: static; display: flex; flex-wrap: wrap; justify-content: center; margin-top: 10px; opacity: 1; }
    .controls button { min-width: 38px; min-height: 38px; font-size: 12px; padding: 6px; }
    .feature-tabs { justify-content: flex-start; flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; scroll-snap-type: x proximity; }
    .feature-tabs .tab-button { flex: 0 0 auto; scroll-snap-align: start; padding: 9px 12px; }
    .toggle-wrapper { flex-direction: column; align-items: stretch; gap: 12px; }
    .toggle-container { justify-content: space-between; width: 100%; min-height: 44px; }
    .karaoke-audio-panel { flex-direction: column; align-items: stretch; gap: 10px; }
    .karaoke-source-toggle { width: 100%; }
    .karaoke-source-button { flex: 1 1 0; }
    .karaoke-vocals-sync-control { margin-left: 0; justify-content: center; }
    .karaoke-audio-panel audio { width: 100%; }
    .comment-form { flex-direction: column; gap: 10px; padding: 12px; }
    .comment-options { flex-direction: column; align-items: stretch; gap: 10px; width: 100%; min-height: auto; }
    .comment-options > div { display: flex; align-items: center; justify-content: space-between; }
    #submit-comment, #submit-comment-right { width: 100%; min-width: 0; min-height: 44px; }
    .admin-reply-form { flex-direction: column; }
    .admin-reply-form button { min-height: 40px; }
    #navigation-bar { top: auto; right: 12px; left: 12px; bottom: 12px; transform: none; flex-direction: row; justify-content: center; gap: 8px; pointer-events: none; }
    #navigation-bar button { flex: 1 1 0; max-width: 180px; padding: 10px 12px; font-size: 13px; pointer-events: auto; }
}

@media (max-width: 480px) {
    .title-container,
    .feature-section,
    .lyrics-card,
    .comments-section {
        padding: 12px;
        border-radius: 12px;
    }

    .comments-section-wide {
        margin-top: 16px;
    }

    #comments-container {
        max-height: 260px;
        padding: 8px;
    }

    .comment {
        padding: 12px;
    }

    .comment .avatar {
        width: 28px;
        height: 28px;
    }

    .mode6-display {
        padding: 24px 12px;
    }

    .mode6-jp {
        font-size: 1.45rem;
        line-height: 2.1;
    }

    .mode6-roman {
        font-size: 1rem;
    }

    .mode6-next {
        margin-top: 18px;
        padding: 14px 12px;
    }

    .mode6-next-jp {
        font-size: 1rem;
        line-height: 1.8;
    }

    .mode6-next-roman,
    .mode6-next-cn {
        font-size: 0.9rem;
    }
}

/* Scrollbar styling */
.lyric-card::-webkit-scrollbar, #comments-container::-webkit-scrollbar { width: 8px; }
.lyric-card::-webkit-scrollbar-track, #comments-container::-webkit-scrollbar-track { background: var(--bg-tertiary); border-radius: 10px; }
.lyric-card::-webkit-scrollbar-thumb, #comments-container::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 10px; }
.lyric-card::-webkit-scrollbar-thumb:hover, #comments-container::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* ===== Practice Mode 4: 遮翻譯 ===== */
.mode4-cn-hidden {
    color: transparent;
    background: var(--text-secondary);
    border-radius: 4px;
    user-select: none;
    cursor: default;
    letter-spacing: 0.1em;
    transition: all 0.4s ease;
}
.mode4-cn-hidden::after {
    content: '████████';
    color: var(--text-secondary);
}
.mode4-cn-revealed {
    opacity: 1;
    color: var(--text-secondary);
    background: transparent;
    transition: opacity 0.4s ease;
}

/* ===== Practice Mode 5: 聽寫練習 ===== */
.mode5-jp-hidden {
    color: transparent;
    background: var(--border-color);
    border-radius: 4px;
    user-select: none;
    cursor: default;
    letter-spacing: 0.1em;
    transition: all 0.4s ease;
    position: relative;
}
.mode5-jp-hidden::after {
    content: '────────';
    color: var(--border-hover);
    font-size: 1.2em;
    letter-spacing: 0.2em;
}
.mode5-jp-revealed {
    color: var(--text-primary);
    background: transparent;
    opacity: 1;
    transition: opacity 0.4s ease;
}

/* Reveal button */
.reveal-btn {
    margin-top: 6px;
    padding: 4px 14px;
    font-size: 13px;
    font-weight: 600;
    border: 1.5px solid var(--primary-color);
    border-radius: 6px;
    background: transparent;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-block;
}
.reveal-btn:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: scale(1.04);
}

/* ===== Practice Mode 6: 卡拉 OK ===== */
.mode6-card {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}
.mode6-display {
    text-align: center;
    padding: 32px 24px;
    width: 100%;
}
.mode6-jp {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 2.4;
    margin-bottom: 20px;
    min-height: 3.5rem;
}
.mode6-jp ruby rt {
    font-size: 0.5em;
    color: var(--primary-color);
}
.mode6-roman {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-style: italic;
    min-height: 1.5rem;
}
.mode6-progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}
.mode6-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-orange), var(--primary-color));
    border-radius: 4px;
    transition: width 0.1s linear;
    width: 0%;
}
.mode6-next {
    margin-top: 24px;
    padding: 16px 18px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    text-align: center;
}
.mode6-next[hidden] {
    display: none;
}
.mode6-next-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 22px;
    margin-bottom: 8px;
    padding: 2px 10px;
    border-radius: 999px;
    background: rgba(255, 126, 34, 0.12);
    color: var(--accent-orange);
    font-size: 0.78rem;
    font-weight: 700;
}
.mode6-next-jp {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 650;
    line-height: 2;
}
.mode6-next-jp ruby rt {
    font-size: 0.5em;
    color: var(--primary-color);
}
.mode6-next-roman {
    margin-top: 4px;
    color: var(--text-secondary);
    font-size: 0.98rem;
    line-height: 1.6;
}
.mode6-next-cn {
    margin-top: 4px;
    color: var(--text-tertiary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===== Tabs inside lyrics-card ===== */
.feature-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 0 0 16px 0;
}
.feature-tabs .tab-button {
    border-radius: 10px;
    border-bottom: 2px solid var(--border-color);
}
.feature-tabs .tab-button.active {
    border-bottom-color: var(--accent-orange);
}

.lyrics-card .tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 12px 12px 0 12px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0;
    background: var(--bg-secondary);
    border-radius: 12px 12px 0 0;
}
.lyrics-card .tab-button {
    padding: 8px 14px;
    font-size: 0.82rem;
    border-radius: 8px 8px 0 0;
    border: 1px solid var(--border-color);
    border-bottom: none;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.lyrics-card .tab-button:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}
.lyrics-card .tab-button.active {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--accent-orange, #f59e0b);
    border-bottom-color: var(--bg-primary);
    font-weight: 700;
}


/* ========== 時間戳編輯器 ========== */
.timestamp-editor {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    margin-bottom: 6px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(168, 85, 247, 0.08));
    border-radius: 20px;
    border: 1px solid rgba(99, 102, 241, 0.2);
    width: fit-content;
}

.timestamp-input {
    width: 85px;
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 13px;
    font-family: 'SF Mono', 'Consolas', monospace;
    text-align: center;
    transition: all 0.2s ease;
}

.timestamp-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.timestamp-unit {
    color: var(--text-tertiary);
    font-size: 12px;
    font-weight: 500;
}

.timestamp-save,
.timestamp-capture {
    width: 28px;
    height: 28px;
    padding: 0;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timestamp-save {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 2px 4px rgba(16, 185, 129, 0.3);
}

.timestamp-save:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(16, 185, 129, 0.4);
}

.timestamp-save:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.timestamp-capture {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    color: white;
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.3);
}

.timestamp-capture:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(99, 102, 241, 0.4);
}

/* 編輯模式下的歌詞行 */
.lyrics-line:has(.timestamp-editor[style*="flex"]) {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 10px 12px;
    margin-bottom: 8px;
    border-left: 3px solid var(--primary-color);
    transition: all 0.2s ease;
}

.lyrics-line:has(.timestamp-editor[style*="flex"]):hover {
    background: var(--bg-tertiary);
}

/* 編輯模式下的高亮行 - 更明顯的樣式 */
.lyrics-line.highlight:has(.timestamp-editor[style*="flex"]) {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2)) !important;
    border-left: 4px solid #8b5cf6 !important;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.3), inset 0 0 30px rgba(139, 92, 246, 0.1) !important;
    transform: none;
}

.lyrics-line.highlight:has(.timestamp-editor[style*="flex"]) .timestamp-editor {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(168, 85, 247, 0.2));
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.2);
}