:root {
  color-scheme: dark;
  --bg-color: #121212;
  --surface-color: #1e1e1e;
  --surface-raised: #262626;
  --text-color: #f2f2f2;
  --muted-color: #d6d6d6;
  --accent-green: #4ade80;
  --accent-pink: #f472b6;
  --focus-color: #fdfd96;
  --border-color: #9a9a9a;
  --on-accent: #000000;
  --error-color: #f87171;

  --hue-red: #f37070; --hue-red-orange: #f4835f; --hue-orange: #f5a147; --hue-yellow: #e8cf55;
  --hue-yellow-green: #c3d95f; --hue-green: #7fd88f; --hue-teal: #6fd4c0; --hue-cyan: #6fd0e8;
  --hue-blue: #7fa8f5; --hue-blue-violet: #9c93f5; --hue-violet: #b48af0; --hue-magenta: #e07fd0;
  --hue-pink: #f78fc0; --hue-brown: #c69565; --hue-gray: #b0b0b0;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg-color: #f5f5f5; --surface-color: #e8e8e8; --surface-raised: #f0f0f0; --text-color: #121212;
  --muted-color: #3d3d3d; --accent-green: #097732; --accent-pink: #800d48; --focus-color: #6b6000;
  --border-color: #5a5a5a; --on-accent: #ffffff; --error-color: #b91c1c;
  --hue-red: #b3261e; --hue-red-orange: #b6441c; --hue-orange: #a85c00; --hue-yellow: #8a7300;
  --hue-yellow-green: #62791a; --hue-green: #1e7a3d; --hue-teal: #0f6e5f; --hue-cyan: #0e6b7a;
  --hue-blue: #1d4ed8; --hue-blue-violet: #4338ca; --hue-violet: #6d28d9; --hue-magenta: #9d1c99;
  --hue-pink: #b3226f; --hue-brown: #7a4a1e; --hue-gray: #595959;
}

html { font-size: 112.5%; }
* { box-sizing: border-box; }
[hidden] { display: none !important; }

* { scrollbar-color: var(--border-color) var(--surface-color); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--surface-color); }
::-webkit-scrollbar-thumb { background-color: var(--border-color); border-radius: 8px; border: 3px solid var(--surface-color); }
::-webkit-scrollbar-thumb:hover { background-color: var(--muted-color); }

html[data-ui-size="small"] { zoom: 0.85; }
html[data-ui-size="large"] { zoom: 1.2; }

body {
  margin: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.55;
}
h1, h2, h3 { margin: 0; }
a { color: inherit; }
button { font: inherit; color: inherit; }
*:focus-visible { outline: 3px solid var(--focus-color); outline-offset: 3px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0; padding: 0; margin: -1px;
}
.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--focus-color); color: var(--on-accent);
  padding: 12px 20px; font-weight: bold; z-index: 1000; border-radius: 0 0 8px 0; text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Header / chrome ---------- */
.site-header {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 16px; padding: 14px 24px; background-color: var(--surface-color);
  border-bottom: 2px solid var(--divider-color); position: sticky; top: 0; z-index: 10;
  transform: translateY(0); transition: transform 0.25s ease;
}
/* Auto-hide on scroll (script.js toggles this on/off by scroll direction).
   Transform, not display/visibility, so the header stays in the a11y tree -
   screen reader and Tab-key navigation are unaffected either way. The
   :focus-within escape hatch covers the one real gap: a sighted keyboard
   user who tabs into a header control while it's scrolled off-screen would
   otherwise land on an invisible focus target. */
.site-header.header-hidden { transform: translateY(-100%); }
.site-header.header-hidden:focus-within { transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .site-header { transition: none; }
}
.site-title { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; text-decoration: none; color: var(--text-color); }
.app-icon { display: block; width: 28px; height: 28px; }
.header-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.theme-toggle-group { display: flex; gap: 4px; border: 2px solid var(--border-color); border-radius: 8px; padding: 3px; }
.theme-toggle-btn { background: transparent; border: none; border-radius: 6px; color: var(--text-color); padding: 6px 14px; font-size: 13px; font-weight: 700; cursor: pointer; }
.theme-toggle-btn:hover, .theme-toggle-btn:focus-visible { background-color: var(--border-color); color: var(--bg-color); }
.theme-toggle-btn[aria-pressed="true"] { background-color: var(--accent-pink); color: var(--on-accent); }
.header-link {
  background: transparent; color: var(--text-color); font-weight: 700; font-size: 14px;
  text-decoration: none; border: 2px solid var(--accent-pink); border-radius: 8px;
  padding: 8px 14px; cursor: pointer;
}
.header-link:hover, .header-link:focus-visible { background-color: color-mix(in srgb, var(--accent-pink) 15%, transparent); }
.header-link.is-green { border-color: var(--accent-green); }
.header-link.is-green:hover, .header-link.is-green:focus-visible { background-color: color-mix(in srgb, var(--accent-green) 15%, transparent); }
.header-link.is-yellow { border-color: var(--focus-color); }
.header-link.is-yellow:hover, .header-link.is-yellow:focus-visible { background-color: color-mix(in srgb, var(--focus-color) 15%, transparent); }
.library-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.hamburger-btn {
  display: none; background: transparent; border: 2px solid var(--accent-pink); border-radius: 8px;
  width: 44px; height: 44px; align-items: center; justify-content: center; color: var(--text-color); cursor: pointer; padding: 0;
}
.hamburger-btn:hover, .hamburger-btn:focus-visible { background-color: color-mix(in srgb, var(--accent-pink) 15%, transparent); }
.settings-group-theme { display: none; }
@media (max-width: 960px) {
  .header-controls > .theme-toggle-group, .header-controls > .header-link.app-settings-trigger { display: none; }
  .hamburger-btn { display: inline-flex; }
  .settings-group-theme { display: block; }
}

.app-shell { max-width: 900px; margin: 0 auto; padding: 24px 24px 70px; }
.back-to-coa-apps { display: inline-block; color: var(--accent-green); font-weight: 700; font-size: 14px; text-decoration: none; margin: 4px 0 18px; }
.back-to-coa-apps:hover, .back-to-coa-apps:focus-visible { color: var(--focus-color); text-decoration: underline; }
.back-to-library { display: inline-block; color: var(--accent-green); font-weight: 700; font-size: 14px; text-decoration: none; margin: 0 0 10px; }
.back-to-library:hover, .back-to-library:focus-visible { color: var(--focus-color); text-decoration: underline; }

.site-footer {
  max-width: 900px; margin: 40px auto 0; padding: 20px 24px 40px; border-top: 2px solid var(--divider-color);
  color: var(--muted-color); font-size: 13px; text-align: center;
}
.site-footer a { color: var(--focus-color); text-decoration: underline; }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--text-color); }

/* ---------- Buttons / toolbar ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 20px 0 30px; }
.toolbar button, .toolbar a.btn {
  background-color: var(--surface-raised); color: var(--text-color); border: 2px solid var(--border-color);
  border-radius: 8px; height: 44px; padding: 0 18px; font-weight: 700; font-size: 14px;
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
}
.toolbar button:hover, .toolbar button:focus-visible, .toolbar a.btn:hover, .toolbar a.btn:focus-visible { border-color: var(--text-color); }
.toolbar button.primary, .toolbar a.btn.primary { border-color: var(--accent-pink); background-color: color-mix(in srgb, var(--accent-pink) 15%, var(--surface-raised)); }
.toolbar button.primary:hover, .toolbar button.primary:focus-visible, .toolbar a.btn.primary:hover, .toolbar a.btn.primary:focus-visible { background-color: color-mix(in srgb, var(--accent-pink) 28%, var(--surface-raised)); }
.toolbar button.accent-yellow, .toolbar a.btn.accent-yellow { border-color: var(--focus-color); background-color: color-mix(in srgb, var(--focus-color) 15%, var(--surface-raised)); }
.toolbar button.accent-yellow:hover, .toolbar button.accent-yellow:focus-visible, .toolbar a.btn.accent-yellow:hover, .toolbar a.btn.accent-yellow:focus-visible { background-color: color-mix(in srgb, var(--focus-color) 28%, var(--surface-raised)); }
.toolbar button#redetect-btn { border-color: var(--focus-color); }
.toolbar button:disabled { opacity: 0.45; cursor: not-allowed; }
.plus-icon { display: inline-block; font-size: 1.7em; font-weight: 800; line-height: 1; transform: translateY(-2px); }
.toolbar button.danger { border-color: var(--error-color); background-color: color-mix(in srgb, var(--error-color) 20%, var(--surface-raised)); }
.toolbar button.danger:hover, .toolbar button.danger:focus-visible { background-color: color-mix(in srgb, var(--error-color) 32%, var(--surface-raised)); }

.btn-icon {
  background: transparent; border: 2px solid var(--border-color); border-radius: 8px;
  width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  font-size: 1.1rem; cursor: pointer; color: var(--text-color);
}
.btn-icon:hover, .btn-icon:focus-visible { border-color: var(--text-color); }
.btn-icon:disabled { opacity: 0.35; cursor: not-allowed; }

/* ---------- Page heading pattern ---------- */
.page-heading { font-size: 28px; margin: 4px 0 4px; }
.page-intro { color: var(--muted-color); margin: 0 0 4px; }
.section-heading { font-size: 20px; color: var(--focus-color); margin: 34px 0 14px; }

/* ---------- Fields ---------- */
.field { margin-top: 18px; }
.field label { display: block; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-color); margin-bottom: 6px; }
.field input[type="text"], .field input[type="email"], .field textarea {
  width: 100%; background-color: var(--bg-color); color: var(--text-color);
  border: 2px solid var(--accent-green); border-radius: 8px; padding: 10px 12px;
  font-size: 17px; font-family: inherit;
}
.field textarea { min-height: 220px; line-height: 1.6; resize: vertical; }
.field select {
  width: 100%; background-color: var(--bg-color); color: var(--text-color);
  border: 2px solid var(--accent-pink); border-radius: 8px; padding: 10px 12px;
  font-size: 15px; font-family: inherit;
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-repeat: no-repeat; background-position: right 14px center; background-size: 26px 26px; padding-right: 46px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f2f2f2' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
}
:root[data-theme="light"] .field select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23121212' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
}
.field-hint { color: var(--muted-color); font-size: 13px; margin: 6px 0 0; }
.field input::placeholder, textarea::placeholder { color: var(--muted-color); opacity: 1; }
.field-optional { text-transform: none; font-weight: normal; color: var(--muted-color); }
.field-error { color: var(--error-color); font-weight: 700; font-size: 13px; margin: 6px 0 0; display: none; }
.field-error.visible { display: block; }
.input-error { border-color: var(--error-color) !important; }

/* ---------- Library: search ---------- */
.search-field { flex: 1 1 240px; min-width: 0; }
.search-field label { display: block; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-color); margin-bottom: 6px; }
.search-field input {
  width: 100%; background-color: var(--bg-color); color: var(--text-color);
  border: 2px solid var(--accent-green); border-radius: 8px; padding: 10px 40px 10px 14px;
  font-size: 17px; font-family: inherit;
}
.search-field input::placeholder { color: var(--muted-color); opacity: 1; }
.search-input-wrap { position: relative; }
.search-clear-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; display: flex; align-items: center; justify-content: center;
  background: transparent; border: 0; border-radius: 6px; color: var(--muted-color);
  font-size: 1.5rem; line-height: 1; cursor: pointer;
}
.search-clear-btn:hover, .search-clear-btn:focus-visible { color: var(--text-color); background-color: color-mix(in srgb, var(--text-color) 12%, transparent); }
.mic-btn {
  flex-shrink: 0; width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 2px solid var(--accent-pink); border-radius: 8px; color: var(--text-color); cursor: pointer;
}
.mic-btn:hover, .mic-btn:focus-visible { background-color: color-mix(in srgb, var(--accent-pink) 15%, transparent); }
.mic-btn[aria-pressed="true"] { background-color: var(--accent-pink); color: var(--on-accent); }
.lib-toolbar { display: flex; flex-wrap: nowrap; gap: 12px; align-items: flex-end; margin: 20px 0 4px; }
.lib-toolbar .toolbar { flex-basis: 100%; }
.filter-status { color: var(--focus-color); font-weight: 700; font-size: 0.85rem; margin: 10px 0 20px; }

/* ---------- Song cards ---------- */
.song-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.song-card {
  display: flex; align-items: center; gap: 16px; padding: 14px 18px;
  border: 2px solid var(--divider-color); border-radius: 10px; background-color: var(--surface-color);
  text-decoration: none; color: inherit; width: 100%; text-align: left; font: inherit; cursor: pointer;
}
.song-card:hover, .song-card:focus-visible { border-color: var(--text-color); }
.letter-badge {
  flex: 0 0 auto; width: 44px; height: 44px; border-radius: 50%;
  border: 4px solid var(--badge-hue, var(--border-color));
  background: color-mix(in srgb, var(--badge-hue, var(--border-color)) 15%, var(--surface-color));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.1rem; color: var(--text-color);
}
.badge-red { --badge-hue: var(--hue-red); }
.badge-red-orange { --badge-hue: var(--hue-red-orange); }
.badge-orange { --badge-hue: var(--hue-orange); }
.badge-yellow { --badge-hue: var(--hue-yellow); }
.badge-yellow-green { --badge-hue: var(--hue-yellow-green); }
.badge-green { --badge-hue: var(--hue-green); }
.badge-teal { --badge-hue: var(--hue-teal); }
.badge-cyan { --badge-hue: var(--hue-cyan); }
.badge-blue { --badge-hue: var(--hue-blue); }
.badge-blue-violet { --badge-hue: var(--hue-blue-violet); }
.badge-violet { --badge-hue: var(--hue-violet); }
.badge-magenta { --badge-hue: var(--hue-magenta); }
.badge-pink { --badge-hue: var(--hue-pink); }
.badge-brown { --badge-hue: var(--hue-brown); }
.badge-gray { --badge-hue: var(--hue-gray); }

.song-info { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.song-title { font-weight: 700; font-size: 1.25rem; color: var(--accent-green); }
.song-description { color: var(--muted-color); font-size: 0.92rem; }
.song-meta { color: var(--muted-color); font-size: 0.88rem; }
.song-card .chevron { color: var(--focus-color); font-size: 2.75rem; flex-shrink: 0; margin-right: 10px; }

.library-empty {
  color: var(--muted-color); background-color: var(--surface-color); border: 2px dashed var(--border-color);
  border-radius: 10px; padding: 24px; text-align: center; margin: 10px 0;
}

/* ---------- Detected sections (Add Lyrics) ---------- */
.detected-box { border: 2px solid var(--border-color); border-radius: 10px; background: var(--surface-color); padding: 18px 20px; margin-top: 20px; }
.detected-box h2 { font-size: 1.1rem; margin-bottom: 4px; }
.detected-box .detect-note { color: var(--muted-color); font-size: 0.9rem; padding-bottom: 14px; margin-bottom: 14px; border-bottom: 1px solid var(--border-color); }
.detected-section { border-top: 1px solid var(--divider-color); padding: 12px 0; }
.detected-section:first-of-type { border-top: 0; padding-top: 0; }
.detected-section-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.detected-section-head select {
  border: 2px solid var(--accent-pink); border-radius: 8px; background: var(--bg-color); color: var(--text-color);
  padding: 4px 8px; font-weight: 700; font-size: 0.85rem; width: auto;
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-repeat: no-repeat; background-position: right 8px center; background-size: 18px 18px; padding-right: 30px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f2f2f2' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
}
:root[data-theme="light"] .detected-section-head select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23121212' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
}
.detected-remove-btn {
  background: transparent; color: var(--text-color); font-weight: 700; font-size: 0.85rem;
  border: 2px solid var(--error-color); border-radius: 8px; padding: 4px 10px; cursor: pointer;
}
.detected-remove-btn:hover, .detected-remove-btn:focus-visible { background-color: color-mix(in srgb, var(--error-color) 15%, transparent); }
.detected-section p { margin: 0; color: var(--muted-color); white-space: pre-line; }

/* ---------- Reading view ---------- */
.reading-head h1 { font-size: 1.9rem; }
.reading-head .byline { color: var(--muted-color); margin-top: 4px; }
.settings-toggle-row { margin: 16px 0; display: flex; gap: 10px; flex-wrap: wrap; }
.settings-toggle-row button {
  background-color: var(--surface-raised); color: var(--text-color); border: 2px solid var(--border-color);
  border-radius: 8px; height: 44px; padding: 0 18px; font-weight: 700; font-size: 14px;
  cursor: pointer; display: inline-flex; align-items: center; gap: 6px;
}
.settings-toggle-row button:hover, .settings-toggle-row button:focus-visible { border-color: var(--text-color); }
.settings-toggle-row button.edit-btn { border-color: var(--accent-pink); }
.edit-icon { display: inline-block; transform: scaleX(-1); }
.settings-toggle-row button.edit-btn:hover, .settings-toggle-row button.edit-btn:focus-visible { background-color: color-mix(in srgb, var(--accent-pink) 15%, var(--surface-raised)); }
.settings-toggle-row button.playlist-btn { border-color: var(--focus-color); }
.settings-toggle-row button.playlist-btn:hover, .settings-toggle-row button.playlist-btn:focus-visible { background-color: color-mix(in srgb, var(--focus-color) 15%, var(--surface-raised)); }

.tts-row {
  display: flex; align-items: center; gap: 10px; margin: 0 0 18px; padding: 10px 14px;
  border: 2px solid var(--divider-color); border-radius: 10px; background: var(--surface-color);
}
.tts-row .tts-label { font-weight: 700; font-size: 0.85rem; color: var(--muted-color); margin-right: 4px; }
.tts-row .btn-icon[aria-pressed="true"] { border-color: var(--accent-green); color: var(--accent-green); }

.lyrics-pane { border-radius: 12px; padding: 28px 24px 40px; overflow-wrap: break-word; }
.lyrics-pane .section-block { scroll-margin-top: 90px; }
.lyrics-pane .section-title {
  font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; margin: 2.5em 0 0.4em;
}
.lyrics-pane .section-block:first-child .section-title { margin-top: 0; }
.lyrics-pane .lyrics-block { margin: 0; white-space: pre-line; }
.lyrics-pane .tts-line { display: block; line-height: 1.3; margin-bottom: 0.65em; }
.lyrics-pane .tts-line:last-child { margin-bottom: 0; }
.lyrics-pane .tts-line.current-line { background: color-mix(in srgb, var(--focus-color) 35%, transparent); border-radius: 4px; }
.lyrics-pane .chorus-block { border-left: 4px solid; padding-left: 16px; font-style: italic; }
.lyrics-pane .section-block.active-section { outline: 3px solid var(--focus-color); outline-offset: 16px; border-radius: 6px; }
.lyrics-pane .section-block:focus-visible { outline: none; }

.sticky-bar {
  position: sticky; bottom: 0; z-index: 10;
  display: flex; gap: 8px; padding: 2px 8px 10px; margin-top: 20px;
  background: var(--surface-raised);
}
@media (min-width: 961px) {
  /* .app-shell caps at 900px but also has 24px of its own left/right
     padding, so the lyrics-pane box actually renders at 900 - 48 = 852px.
     Match that (not the raw 900px) so the toolbar's edges line up with the
     lyrics box's edges instead of the toolbar sticking out past it. */
  .sticky-bar { max-width: 852px; margin-left: auto; margin-right: auto; }
}
.sticky-bar button {
  flex: 1 1 0; display: flex; align-items: center; justify-content: center;
  /* --on-accent is #000 in dark theme / #fff in light theme - reused here
     since that's exactly the black-in-dark, white-in-light split requested,
     without needing a dedicated variable for a one-off background. */
  background: var(--on-accent); border: 2px solid var(--border-color); border-radius: 12px;
  min-height: 52px; padding: 2px 1px; cursor: pointer; color: var(--text-color);
}
.sticky-bar button:disabled { opacity: 0.35; cursor: not-allowed; }
.sticky-bar button.autoscroll-btn { border-color: var(--accent-green); color: var(--accent-green); }
.sticky-bar button.autoscroll-btn[aria-pressed="true"] { border-color: var(--accent-pink); color: var(--accent-pink); }
.nav-icon { width: 50px; height: 50px; display: block; }

.sr-announcer { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; padding: 0; margin: -1px; }

/* ---------- Modal (Display Settings / App Settings / confirm dialogs) ---------- */
.modal-backdrop { position: fixed; inset: 0; background-color: rgba(0,0,0,0.6); z-index: 100; }
.modal {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 101;
  background-color: var(--surface-color); border: 2px solid var(--divider-color); border-radius: 12px;
  padding: 28px; width: 90%; max-width: 460px; max-height: 85vh; overflow-y: auto;
}
.modal h2 { margin: 0 0 8px; color: var(--text-color); font-size: 22px; }
.modal-hint { color: var(--muted-color); font-size: 14px; margin: 0 0 18px; }
.modal.wide { max-width: 560px; width: min(90%, 560px); height: min(600px, 80vh); }
/* Any .modal with a .modal-header (#app-settings-dialog, #share-modal)
   splits into a non-scrolling header + a separately-scrolling body,
   rather than making the whole .modal scroll with a sticky header inside
   it - a real, confirmed Chromium rendering bug lets scrolled content
   paint above a `position: sticky` header when the header's own scroll
   ancestor is itself `position: fixed` (as every .modal here is), even
   though hit-testing and layout are both otherwise correct. Splitting the
   header out of the scrolling box entirely sidesteps the bug rather than
   working around it. #share-modal additionally fixes its overall height
   (via .wide above) so switching between its two tabs never resizes the
   dialog itself. */
#app-settings-dialog, #share-modal, #playlist-share-modal {
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 20px 28px 16px;
  border-bottom: 2px solid var(--divider-color);
  background-color: var(--surface-color); border-radius: 12px 12px 0 0;
}
.modal-header h2 { margin: 0; }
.modal-body {
  overflow-y: auto;
  flex: 1 1 auto;
  min-height: 0;
  padding: 18px 28px 28px;
  display: flex;
  flex-direction: column;
}
.modal-body .modal-actions { margin-top: auto; padding-top: 24px; }
.modal-close-btn, .shortcuts-close-btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 2px solid var(--border-color); color: var(--text-color);
  border-radius: 50%; width: 2.3em; height: 2.3em; font-size: 1.25rem; line-height: 1; cursor: pointer; flex-shrink: 0;
}
.modal-close-btn:hover, .modal-close-btn:focus-visible,
.shortcuts-close-btn:hover, .shortcuts-close-btn:focus-visible { background-color: var(--border-color); color: var(--bg-color); }
.modal-close-btn svg { width: 16px; height: 16px; }
.settings-row { margin-bottom: 16px; }
.settings-row:last-of-type { margin-bottom: 0; }
.settings-label { display: block; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; color: var(--text-color); margin-bottom: 8px; }
/* Rounded end-corners live on the first/last buttons themselves (not
   overflow: hidden on the group) - overflow: hidden would clip a focus
   ring on the first or last button, since it needs to render outside the
   button's own box but was being clipped by the group's rounded corner. */
.segmented { display: flex; flex-wrap: wrap; border: 2px solid var(--border-color); border-radius: 999px; }
.segmented button { flex: 1 1 auto; background: transparent; border: 0; padding: 8px 12px; font-size: 0.85rem; font-weight: 700; cursor: pointer; border-right: 1px solid var(--border-color); color: var(--text-color); }
.segmented button:first-child { border-radius: 999px 0 0 999px; }
.segmented button:last-child { border-right: 0; border-radius: 0 999px 999px 0; }
.segmented button[aria-pressed="true"] { background: var(--accent-green); color: var(--on-accent); }
.swatch-row { display: flex; flex-wrap: wrap; gap: 10px; }
.swatch-btn { width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--border-color); cursor: pointer; padding: 0; }
.swatch-btn[aria-pressed="true"] { outline: 3px solid var(--focus-color); outline-offset: 2px; }
.stepper { display: flex; align-items: center; gap: 14px; }
@media (max-width: 767px) {
  .stepper { flex-wrap: wrap; justify-content: center; }
  .stepper-value { order: -1; flex-basis: 100%; text-align: center; margin-bottom: 8px; }
}
.stepper-btn {
  width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--border-color);
  background: transparent; color: var(--text-color); font-size: 1.4rem; font-weight: 800; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
}
.stepper-btn:hover, .stepper-btn:focus-visible { border-color: var(--text-color); }
.stepper-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.stepper-value { font-weight: 700; font-size: 1.1rem; min-width: 60px; text-align: center; }
.settings-preview { border-radius: 10px; padding: 18px 20px; margin-bottom: 22px; border: 2px solid var(--border-color); overflow: hidden; overflow-wrap: break-word; }
.settings-preview-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; opacity: 0.65; margin: 0 0 10px; }
.preview-heading { font-size: 0.85rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 8px; }
.preview-text { margin: 0; line-height: 1.7; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 24px; }
.modal-actions .btn-create {
  border: 2px solid var(--accent-pink); border-radius: 8px; padding: 10px 20px; font-weight: 700; font-size: 14px;
  cursor: pointer; background-color: color-mix(in srgb, var(--accent-pink) 15%, var(--surface-raised)); color: var(--text-color);
}
.modal-actions .btn-create:hover, .modal-actions .btn-create:focus-visible { background-color: color-mix(in srgb, var(--accent-pink) 25%, var(--surface-raised)); }
.modal-actions .btn-cancel {
  border: 2px solid var(--border-color); border-radius: 8px; padding: 10px 20px; font-weight: 700; font-size: 14px;
  cursor: pointer; background-color: var(--surface-raised); color: var(--text-color);
}
.modal-actions .btn-cancel:hover, .modal-actions .btn-cancel:focus-visible { border-color: var(--text-color); }
.modal-actions .btn-delete {
  border: 2px solid var(--error-color); border-radius: 8px; padding: 10px 20px; font-weight: 700; font-size: 14px;
  cursor: pointer; background-color: color-mix(in srgb, var(--error-color) 20%, var(--surface-raised)); color: var(--text-color);
}
.modal-actions .btn-delete:hover, .modal-actions .btn-delete:focus-visible { background-color: color-mix(in srgb, var(--error-color) 32%, var(--surface-raised)); }

/* ---------- Share Library modal ---------- */
.share-tablist { display: flex; flex-wrap: wrap; border-bottom: 2px solid var(--border-color); margin-bottom: 20px; }
.share-tab-btn {
  flex: 1 1 auto; background: transparent; border: 0; border-bottom: 3px solid transparent;
  padding: 10px 8px 12px; font-weight: 700; font-size: 0.92rem; color: var(--muted-color); cursor: pointer; margin-bottom: -2px;
}
.share-tab-btn[aria-selected="true"] { color: var(--text-color); border-bottom-color: var(--focus-color); }
.share-tab-btn:hover { color: var(--text-color); }
.share-note { border: 2px solid var(--border-color); border-radius: 10px; padding: 12px 14px; color: var(--muted-color); font-size: 0.88rem; margin-bottom: 18px; }
.share-note.is-full { border-color: var(--error-color); color: var(--error-color); }
.invite-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 20px; }
.invite-field { flex: 1 1 220px; margin-top: 0; }
.invite-submit-btn {
  border: 2px solid var(--focus-color); border-radius: 8px; padding: 10px 20px; font-weight: 700; font-size: 14px;
  cursor: pointer; background-color: color-mix(in srgb, var(--focus-color) 18%, var(--surface-raised)); color: var(--text-color); white-space: nowrap;
}
.invite-submit-btn:hover, .invite-submit-btn:focus-visible { background-color: color-mix(in srgb, var(--focus-color) 30%, var(--surface-raised)); }
.invite-submit-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.share-subheading { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--focus-color); margin-bottom: 12px; }
.share-list { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.share-row {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; flex-wrap: wrap;
  border: 2px solid var(--divider-color); border-radius: 10px; background: var(--surface-raised);
}
.share-avatar {
  flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%; border: 2px solid var(--border-color);
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.9rem; background: var(--bg-color);
}
.share-person { flex: 1 1 160px; min-width: 0; }
.share-person .share-person-name { font-weight: 700; overflow-wrap: anywhere; }
.share-person .pending-tag {
  font-weight: 700; font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--focus-color); border: 1px solid var(--focus-color); border-radius: 999px; padding: 1px 7px; margin-left: 8px; vertical-align: middle;
}
.share-person .share-person-email { display: block; color: var(--muted-color); font-size: 0.85rem; overflow-wrap: anywhere; margin-top: 2px; }
.share-remove-btn {
  flex: 0 0 auto; width: 32px; height: 32px; border-radius: 50%; border: 2px solid var(--border-color);
  background: transparent; color: var(--text-color); cursor: pointer; padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
}
.share-remove-btn svg { width: 14px; height: 14px; display: block; }
.share-remove-btn:hover, .share-remove-btn:focus-visible { border-color: var(--error-color); color: var(--error-color); }
.share-empty { color: var(--muted-color); font-style: italic; font-size: 0.9rem; padding: 8px 2px 16px; }
.shared-library-section { margin-top: 28px; }

.settings-group { margin-bottom: 22px; padding-bottom: 22px; border-bottom: 2px solid var(--border-color); }
.settings-group:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
.settings-group h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--focus-color); margin: 0 0 14px; }
/* Display and Text to Speech are <details>/<summary> instead of a plain
   h3 - long enough sections that collapsing them by default keeps the
   Settings dialog scannable. Selector is scoped to summary specifically
   (not "h3, summary" together) so the Theme section's real <h3> - not a
   <details>, deliberately not made collapsible - keeps its plain heading
   look instead of picking up the expand/collapse triangle. */
.settings-group summary {
  cursor: pointer; font-size: 1rem; font-weight: bold; text-transform: uppercase; letter-spacing: 0.04em;
  color: var(--focus-color); margin: 0 0 14px; list-style: none;
  display: flex; align-items: center; gap: 0.5em;
}
.settings-group summary::-webkit-details-marker { display: none; }
.settings-group summary::before { content: "+"; display: inline-block; color: var(--accent-green); font-weight: 800; transform: scale(1.3); position: relative; top: -2px; }
.settings-group[open] summary::before { content: "\2212"; }
/* Closed <details> renders only the summary, so its own margin-bottom (14px)
   stacks on top of the parent's padding-bottom (22px) below the text, while
   above the text there's just the previous group's 22px margin - uneven.
   Zeroing the summary's margin-bottom when closed leaves padding-bottom as
   the only space below, matching the 22px above. */
.settings-group:not([open]) summary { margin-bottom: 0; }
.checkbox-field { display: flex; align-items: center; gap: 10px; }
.checkbox-field input[type="checkbox"] {
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  width: 22px; height: 22px; margin: 0; flex-shrink: 0; cursor: pointer;
  background-color: transparent; border: 2px solid var(--focus-color); border-radius: 4px;
  position: relative;
}
.checkbox-field input[type="checkbox"]:checked::after {
  content: ""; position: absolute; left: 5px; top: 1px; width: 6px; height: 11px;
  border: solid var(--focus-color); border-width: 0 3px 3px 0; transform: rotate(45deg);
}
.checkbox-field label { margin-bottom: 0; font-weight: 700; cursor: pointer; }

/* ---------- Keyboard Shortcuts modal - styling borrowed from Typing Speedometer ---------- */
/* Non-scrolling header + separately-scrolling body, same reasoning as
   #app-settings-dialog above (a real Chromium sticky-header-inside-a-
   position:fixed-scroll-box rendering bug, not just a style choice). */
.shortcuts-dialog {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 101;
  width: min(30rem, 92vw); background-color: var(--surface-color); color: var(--text-color);
  border: 2px solid var(--divider-color); border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4); max-height: 90vh;
  display: flex; flex-direction: column; overflow: hidden;
}
.shortcuts-dialog-header {
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 2px solid var(--divider-color); padding: 1.75rem 1.75rem 0.9rem;
  background-color: var(--surface-color);
}
.shortcuts-dialog-header h2 { margin: 0; font-size: 1.4rem; }
.shortcuts-dialog-body { overflow-y: auto; flex: 1 1 auto; min-height: 0; padding: 1.1rem 1.75rem 1.75rem; }
.shortcuts-list { list-style: none; margin: 0; padding: 0; }
.shortcuts-list li { padding: 0.75em 0; border-bottom: 2px solid var(--divider-color); font-size: 1rem; }
.shortcuts-list li:last-child { border-bottom: none; padding-bottom: 0; }
.shortcuts-list kbd {
  background-color: var(--bg-color); border: 2px solid var(--focus-color); color: var(--text-color);
  padding: 0.1em 0.45em; border-radius: 4px; font-family: monospace; font-size: 0.9em;
}

/* ---------- Playlist screen ---------- */
.playlist-card { border: 2px solid var(--divider-color); border-radius: 10px; background: var(--surface-color); padding: 20px 22px; margin-top: 18px; }
.playlist-card h2 { font-size: 1.3rem; color: var(--accent-green); }
.playlist-card .playlist-title-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.playlist-card .playlist-meta { color: var(--muted-color); font-size: 0.9rem; margin: 4px 0 16px; }
.playlist-items { list-style: none; margin: 0 0 16px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.playlist-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px 10px 22px;
  border: 1.5px solid var(--divider-color); border-radius: 8px; background: var(--bg-color);
}
.playlist-item .order-num { font-weight: 800; color: var(--focus-color); width: 20px; }
.playlist-item .song-title-heading { flex: 1 1 auto; min-width: 0; margin: 0; }
.playlist-item .song-title-plain { display: block; width: 100%; font-weight: 700; font-size: 1.2rem; color: var(--text-color); background: none; border: 0; text-align: left; cursor: pointer; font-family: inherit; padding: 0; }
.playlist-item .song-title-plain:hover, .playlist-item .song-title-plain:focus-visible { text-decoration: underline; }
.playlist-item .item-controls { display: flex; gap: 4px; }
.playlist-item .btn-icon { font-weight: 800; }
.playlist-item .btn-icon.btn-move-up, .playlist-item .btn-icon.btn-move-down { font-size: 1.4rem; }
.playlist-item .btn-icon.btn-move-up { border-color: var(--accent-pink); }
.playlist-item .btn-icon.btn-move-down { border-color: var(--accent-green); }
.playlist-item .btn-icon.btn-remove { color: #ffffff; border-color: var(--hue-red); }
.playlist-item .btn-icon.btn-remove:hover, .playlist-item .btn-icon.btn-remove:focus-visible { background-color: color-mix(in srgb, var(--hue-red) 15%, transparent); }
.playlist-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.playlists-empty {
  color: var(--muted-color); background-color: var(--surface-color); border: 2px dashed var(--border-color);
  border-radius: 10px; padding: 24px; text-align: center; margin: 18px 0;
}
@media (max-width: 480px) {
  .playlist-item { flex-wrap: wrap; }
  .playlist-item .item-controls { flex-basis: 100%; margin-top: 8px; }
}

/* ---------- Add-to-playlist picker ---------- */
.pick-list { list-style: none; margin: 0; padding: 8px 0; max-height: 50vh; overflow-y: auto; }
.pick-list li { border-bottom: 1px solid var(--divider-color); }
.pick-list li:last-child { border-bottom: none; }
.pick-row {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: transparent; border: 0; color: var(--text-color); font: inherit; text-align: left;
  padding: 12px 4px; cursor: pointer;
}
.pick-row:hover, .pick-row:focus-visible { background: color-mix(in srgb, var(--focus-color) 12%, transparent); }
.pick-row .pick-title-added { color: var(--hue-green); font-weight: 700; }
.pick-empty { color: var(--muted-color); font-style: italic; font-size: 0.9rem; padding: 8px 4px 16px; }