/* Material 3 overrides are scoped so the original design remains available. */
html[data-design="material3"] {
    --bg: #111418;
    --bg-elv: #1d2024;
    --bg-alt: #282c31;
    --text: #e1e2e8;
    --text-2: #c1c7d0;
    --text-3: #929aa5;
    --border: #42474f;
    --primary: #a3c9ff;
    --primary-hover: #c4dcff;
    --danger: #ffb4ab;
    --radius: 16px;
    --m3-on-primary: #00315c;
    --m3-container: color-mix(in srgb, var(--primary) 17%, var(--bg-elv));
    --m3-on-container: color-mix(in srgb, var(--primary) 35%, var(--text));
    --m3-state: color-mix(in srgb, var(--primary) 9%, var(--bg-elv));
    color-scheme: dark;
}

html[data-design="material3"][data-theme="light"] {
    --bg: #f8f9ff;
    --bg-elv: #eef0f7;
    --bg-alt: #e2e7ef;
    --text: #191c20;
    --text-2: #42474f;
    --text-3: #626a76;
    --border: #737b87;
    --primary: #245f9a;
    --primary-hover: #174b7d;
    --danger: #ba1a1a;
    --m3-on-primary: #ffffff;
    color-scheme: light;
}

html[data-design="material3"][data-accent="violet"] { --primary: #d0bcff; --primary-hover: #e3d6ff; --m3-on-primary: #381e72; }
html[data-design="material3"][data-accent="green"] { --primary: #8bd6b2; --primary-hover: #a8edcc; --m3-on-primary: #003825; }
html[data-design="material3"][data-accent="rose"] { --primary: #ffb0c8; --primary-hover: #ffd0de; --m3-on-primary: #5c1132; }
html[data-design="material3"][data-theme="light"][data-accent="violet"] { --primary: #6750a4; --primary-hover: #523c8e; --m3-on-primary: #ffffff; }
html[data-design="material3"][data-theme="light"][data-accent="green"] { --primary: #006c49; --primary-hover: #005237; --m3-on-primary: #ffffff; }
html[data-design="material3"][data-theme="light"][data-accent="rose"] { --primary: #984063; --primary-hover: #7b2b4c; --m3-on-primary: #ffffff; }

html[data-design="material3"] .page-wrapper { padding: 28px 40px 64px; }
html[data-design="material3"] .content { max-width: 1440px; }
html[data-design="material3"] .bookmarks-section { gap: 24px; }
html[data-design="material3"] .bookmarks-header { padding-bottom: 20px; border-bottom: 1px solid color-mix(in srgb, var(--border) 35%, transparent); }
html[data-design="material3"] .bookmarks-title { gap: 12px; }
html[data-design="material3"] .bookmarks-title > svg { color: var(--primary); width: 24px; height: 24px; }
html[data-design="material3"] .bookmarks-title h2 { font-size: 20px; font-weight: 500; letter-spacing: -0.4px; }
html[data-design="material3"] .sync-indicator { padding: 6px 10px; border-radius: 20px; background: var(--bg-elv); }
html[data-design="material3"] .header-actions { gap: 8px; }
html[data-design="material3"] .header-actions .icon-btn { width: 44px; min-width: 44px; height: 44px; border: 0; border-radius: 50%; background: transparent; color: var(--text-2); }
html[data-design="material3"] .header-actions .icon-btn:hover { background: var(--bg-alt); color: var(--text); }
html[data-design="material3"] .header-actions .add-bookmark-btn { width: 56px; height: 48px; border-radius: 16px; background: var(--m3-container); color: var(--m3-on-container); }
html[data-design="material3"] .header-actions .add-bookmark-btn:hover { background: var(--primary); color: var(--m3-on-primary); }
html[data-design="material3"] #edit-mode-btn[aria-pressed="true"] { background: var(--m3-container); color: var(--m3-on-container); }

html[data-design="material3"] .material-find { display: flex; align-items: center; justify-content: center; gap: 8px; flex-shrink: 0; padding: 12px 18px; min-height: 48px; background: var(--m3-container); color: var(--m3-on-container); border: 0; border-radius: 28px; font: 500 13px var(--font); cursor: pointer; }
html[data-design="material3"] .material-find:hover { background: var(--bg-alt); }
html[data-design="material3"] .material-find kbd { font-size: 10px; opacity: 0.8; margin-left: 12px; }
html[data-design="material3"] .search-input-wrapper { min-height: 64px; padding-left: 56px; padding-right: 24px; border: 2px solid transparent; border-radius: 36px; box-shadow: none; background: var(--bg-alt); }
html[data-design="material3"] .search-input-wrapper:focus-within { border-color: var(--primary); box-shadow: 0 2px 8px #00000014; }
html[data-design="material3"] .search-icon { left: 22px; color: var(--text-2); }
html[data-design="material3"] #search-input { min-width: 0; font-size: 16px; }
html[data-design="material3"] .search-chip { border-radius: 16px; background: var(--m3-container); color: var(--m3-on-container); }

html[data-design="material3"] .favorites-section { padding: 12px 0 8px; }
html[data-design="material3"] .section-heading { margin-bottom: 20px; gap: 12px; }
html[data-design="material3"] .section-heading h2 { font-size: 20px; font-weight: 500; letter-spacing: -0.4px; }
html[data-design="material3"] .favorites-grid { gap: 16px; }
html[data-design="material3"] .favorite-card { width: 112px; height: 112px; flex-basis: 112px; border: 1px solid transparent; border-radius: 28px; background: var(--bg-elv); transition: background-color 0.2s, border-radius 0.2s; }
html[data-design="material3"] .favorite-card:hover { border-color: transparent; border-radius: 20px; background: var(--m3-container); }
html[data-design="material3"] .favorite-number { color: var(--text-2); font-size: 11px; right: 12px; bottom: 8px; }
html[data-design="material3"] .favorites-empty { padding: 24px; border: 0; border-radius: 24px; background: var(--bg-elv); color: var(--text-2); min-height: 88px; }
html[data-design="material3"] .favorites-empty:hover { background: var(--m3-state); }
html[data-design="material3"] .library-toolbar { margin-top: 8px; }
html[data-design="material3"] #bookmark-count { color: var(--text); font-size: 14px; font-weight: 500; }
html[data-design="material3"] .navigation-hint { font-size: 11px; margin-top: -16px; }
html[data-design="material3"] kbd { border-radius: 6px; }
html[data-design="material3"] .bookmarks-container { gap: 16px; }
html[data-design="material3"] .bookmarks-col { min-width: 0; gap: 16px; }
html[data-design="material3"] .category-group { background: var(--bg-elv); padding: 16px 8px 8px; border-radius: 24px; }
html[data-design="material3"] .category-header { margin: 0 8px 12px; padding-bottom: 4px; border: 0; min-height: 28px; gap: 8px; }
html[data-design="material3"] .category-title { font-size: 14px; line-height: 1.4; font-weight: 600; text-transform: none; letter-spacing: 0; color: var(--m3-on-container); overflow-wrap: anywhere; }
html[data-design="material3"] .category-items { gap: 4px; }
html[data-design="material3"] .bookmark-item { min-height: 48px; padding: 10px; border: 1px solid transparent; border-radius: 16px; background: transparent; }
html[data-design="material3"] .bookmark-item:hover { background: var(--m3-state); border-color: transparent; transform: none; }
html[data-design="material3"] .bookmark-link { gap: 10px; }
html[data-design="material3"] .bm-name { font-size: 13px; font-weight: 400; }
html[data-design="material3"] .bm-chord { border: 0; border-radius: 6px; background: var(--bg-alt); color: var(--text-2); }
html[data-design="material3"] .editing .bookmark-item { padding-right: 4.8rem; }
html[data-design="material3"] .bm-actions { background: var(--bg-elv); }
html[data-design="material3"][data-density="compact"] .bookmark-item { min-height: 36px; padding-top: 5px; padding-bottom: 5px; }
html[data-design="material3"][data-layout="tiles"] .bookmark-item { min-height: 90px; padding: 14px 6px; }
html[data-design="material3"][data-layout="tiles"] .editing .bookmark-item { padding: 14px 6px 36px; }

html[data-design="material3"] .modal-overlay { background: #00000065; backdrop-filter: blur(6px); }
html[data-design="material3"] .modal { border: 0; border-radius: 28px; background: var(--bg-elv); box-shadow: 0 12px 40px #00000030; padding: 28px; }
html[data-design="material3"] .modal h3 { font-size: 24px; font-weight: 400; letter-spacing: -0.5px; }
html[data-design="material3"] .modal input:not([type="checkbox"]),
html[data-design="material3"] .appearance-controls select { min-height: 48px; border-radius: 12px; padding: 12px 16px; background: var(--bg); color: var(--text); border-color: var(--border); font-size: 14px; }
html[data-design="material3"] .modal input::placeholder { color: var(--text-2); }
html[data-design="material3"] .modal-close-icon { width: 44px; height: 44px; flex-shrink: 0; border-radius: 50%; background: var(--bg-alt); }
html[data-design="material3"] .settings-body { padding-right: 8px; }
html[data-design="material3"] .settings-section-title { text-transform: none; letter-spacing: 0; color: var(--primary); font-size: 14px; margin-bottom: 8px; }
html[data-design="material3"] .setting-row { min-height: 48px; }
html[data-design="material3"] .settings-hint { color: var(--text-2); }
html[data-design="material3"] .settings-body .theme-options { gap: 0; }
html[data-design="material3"] .theme-btn { border-radius: 0; border-color: var(--border); min-height: 44px; background: transparent; color: var(--text-2); }
html[data-design="material3"] .theme-btn + .theme-btn { border-left: 0; }
html[data-design="material3"] .theme-btn:first-child { border-radius: 24px 0 0 24px; }
html[data-design="material3"] .theme-btn:last-child { border-radius: 0 24px 24px 0; }
html[data-design="material3"] .theme-btn.active { color: var(--m3-on-container); background: var(--m3-container); }
html[data-design="material3"] .modal-actions button,
html[data-design="material3"] .settings-action-btn { min-height: 44px; padding: 10px 20px; border-radius: 24px; font-weight: 500; }
html[data-design="material3"] .modal-save,
html[data-design="material3"] #settings-done-btn { background: var(--primary); color: var(--m3-on-primary); border-color: transparent; }
html[data-design="material3"] .modal-save:hover,
html[data-design="material3"] #settings-done-btn:hover { background: var(--primary-hover); }
html[data-design="material3"] .settings-action-btn { background: transparent; color: var(--primary); }
html[data-design="material3"] .settings-action-btn:hover { background: var(--m3-state); }
html[data-design="material3"] .command-result { border-radius: 16px; min-height: 56px; }
html[data-design="material3"] .command-result[aria-selected="true"] { background: var(--m3-container); border-color: transparent; }
html[data-design="material3"] .context-menu { padding: 8px; border: 0; border-radius: 16px; background: var(--bg-elv); box-shadow: 0 4px 16px #00000038; }
html[data-design="material3"] .context-menu button { min-height: 44px; border-radius: 8px; }
html[data-design="material3"] .empty-state { border-radius: 28px; background: var(--bg-elv); padding: 40px 24px; }

@media (max-width: 1100px) {
    html[data-design="material3"] .bookmarks-container { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    html[data-design="material3"] .material-find kbd { display: none; }
}
@media (max-width: 700px) {
    html[data-design="material3"] .page-wrapper { padding: 20px 20px 40px; }
    html[data-design="material3"] .bookmarks-header { gap: 12px; flex-wrap: wrap; }
    html[data-design="material3"] .bookmarks-container { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    html[data-design="material3"] .section-heading { align-items: flex-start; flex-direction: column; gap: 6px; }
    html[data-design="material3"] .favorites-grid { gap: 12px; }
    html[data-design="material3"] .modal { padding: 24px; }
    html[data-design="material3"] .navigation-hint { line-height: 1.8; }
}
@media (max-width: 440px) {
    html[data-design="material3"] .bookmarks-container { grid-template-columns: minmax(0, 1fr); }
    html[data-design="material3"] .bookmarks-header { align-items: flex-start; }
    html[data-design="material3"] .header-actions { margin-left: auto; }
    html[data-design="material3"] .favorite-card { width: 96px; height: 104px; flex-basis: 96px; }
    html[data-design="material3"] .setting-row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
    html[data-design="material3"] .settings-body .cloud-panel { grid-template-columns: minmax(0, 1fr); }
}