:root {
  --bg: #f3eee6;
  --ink: #1c1a17;
  --muted: #5c564c;
  --panel: #fffcf7;
  --line: #d4ccc0;
  --accent: #2f5d50;
  --accent-ink: #f7faf8;
  --danger: #8a3b2d;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }

/* Author CSS (e.g. display:flex/block) must not defeat the hidden attribute. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at top left, #fff8ec 0%, transparent 45%),
    radial-gradient(ellipse at bottom right, #e7efe9 0%, transparent 40%),
    var(--bg);
}

.lang-toggle {
  position: fixed;
  top: 0.65rem;
  right: 0.75rem;
  z-index: 40;
  min-width: 2.4rem;
  padding: 0.28rem 0.45rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--muted);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(28, 26, 23, 0.06);
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.app {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.header h1 {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
}

.offline-hint {
  display: none;
}

.install-btn {
  flex: 0 0 auto;
}

.app-footer {
  max-width: 56rem;
  margin: 0 auto;
  padding: 0.75rem 1.25rem 1.5rem;
  display: flex;
  justify-content: flex-end;
}

.update-banner {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem 1rem;
  padding: 0.7rem 1.1rem;
  background: var(--accent, #2f5d50);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}

.update-banner[hidden] {
  display: none !important;
}

.update-banner-text {
  flex: 1 1 12rem;
  font-size: 0.95rem;
  line-height: 1.35;
}

.update-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.update-now-btn {
  background: #fff;
  color: var(--accent, #2f5d50);
  border: none;
  font-weight: 600;
}

.update-later-btn {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.55);
}

.update-later-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.sync-panel .sync-status {
  text-align: left;
  max-width: none;
  margin: 0 0 0.65rem;
}

.sync-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
}

.secondary-file {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.sync-settings {
  display: grid;
  gap: 0.55rem;
  margin: 0 0 0.85rem;
  padding: 0.75rem;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: #faf7f1;
}

.sync-settings-grid {
  display: grid;
  gap: 0.45rem;
  grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
}

.notes-heading {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

.notes-list {
  list-style: none;
  margin: 0 0 0.5rem;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.notes-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem;
  align-items: start;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-size: 0.92rem;
}

.notes-list .note-meta {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  margin-top: 0.2rem;
}

.notes-add {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.notes-add input {
  flex: 1 1 12rem;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.4rem 0.55rem;
}

.history-details {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.history-list {
  margin: 0.4rem 0 0;
  padding-left: 1.2rem;
}

.history-list li {
  margin: 0.2rem 0;
}

.sheet-edit-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.sheet-edit-field input {
  font: inherit;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.4rem 0.55rem;
  background: #fff;
}

.score-hint {
  max-width: none;
  text-align: left;
  margin: 0 0 0.65rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (max-width: 560px) {
  .score-hint {
    white-space: normal;
  }
}

.tagline {
  margin: 0;
  color: var(--muted);
  line-height: 1.4;
}

.panel {
  margin-top: 1.1rem;
  padding: 1rem 1.1rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.score-panel {
  position: relative;
}

.busy-overlay {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: color-mix(in srgb, var(--panel, #f7f4ef) 72%, transparent);
  backdrop-filter: blur(2px);
  border-radius: inherit;
  pointer-events: all;
}

.busy-overlay[hidden] {
  display: none !important;
}

.busy-card {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 8px 24px rgba(20, 40, 30, 0.12);
  color: var(--ink);
  font-size: 0.95rem;
}

.busy-spinner {
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-top-color: var(--accent);
  animation: busy-spin 0.7s linear infinite;
  flex: 0 0 auto;
}

.busy-label {
  font-weight: 560;
  letter-spacing: 0.01em;
}

@keyframes busy-spin {
  to { transform: rotate(360deg); }
}

body.is-busy {
  cursor: progress;
}

body.is-busy .open-menu,
body.is-busy .view-toggle,
body.is-busy .sheet-key-mod,
body.is-busy .voice-actions {
  pointer-events: none;
  opacity: 0.72;
}

.status.is-busy::before {
  content: "";
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  margin-right: 0.4rem;
  vertical-align: -0.05rem;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-top-color: var(--accent);
  animation: busy-spin 0.7s linear infinite;
}

.load-panel,
.transport-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

.file-btn,
.file-btn-like,
button {
  appearance: none;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 8px;
  padding: 0.45rem 0.85rem;
  font: inherit;
  cursor: pointer;
}

button:disabled,
.file-btn:has(input:disabled) {
  opacity: 0.45;
  cursor: not-allowed;
}

.open-menu {
  position: relative;
  display: inline-flex;
}

.open-menu-panel {
  position: absolute;
  top: calc(100% + 0.35rem);
  left: 0;
  z-index: 30;
  min-width: 14rem;
  max-width: min(20rem, 90vw);
  padding: 0.35rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 8px 24px rgba(28, 26, 23, 0.12);
}

.open-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--ink);
  border-radius: 6px;
  padding: 0.45rem 0.65rem;
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
}

.open-menu-item:hover,
.open-menu-item:focus-visible {
  background: rgba(47, 93, 80, 0.1);
  color: var(--accent);
  outline: none;
}

.open-menu-sep {
  height: 1px;
  margin: 0.3rem 0.4rem;
  background: var(--line);
}

.open-menu-heading {
  padding: 0.35rem 0.65rem 0.15rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.open-menu-examples {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  max-height: 12rem;
  overflow: auto;
}

.open-menu-empty {
  padding: 0.4rem 0.65rem 0.55rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.tuning-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: auto;
  padding: 0.15rem 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
  cursor: pointer;
  opacity: 0.85;
}

.tuning-inline input {
  margin: 0;
  accent-color: var(--accent);
  transform: scale(0.9);
}

.tuning-inline:has(input:disabled) {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary,
.voice-actions button {
  background: transparent;
  color: var(--accent);
}

.setlist-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.setlist-nav-btn {
  min-width: 2rem;
  padding: 0.35rem 0.55rem;
  line-height: 1;
  font-size: 1.15rem;
}

.setlist-pos {
  color: var(--muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  min-width: 2.75rem;
  text-align: center;
  white-space: nowrap;
}

.file-name {
  color: var(--muted);
  font-size: 0.95rem;
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.open-menu-item.is-current {
  font-weight: 600;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.recording-link {
  color: var(--accent);
  font-size: 0.82rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  max-width: 10rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.recording-link:hover,
.recording-link:focus-visible {
  border-bottom-color: var(--accent);
}

.recording-edit-btn {
  padding: 0.2rem 0.45rem;
  font-size: 0.78rem;
}

.inline {
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.tempo-bpm {
  width: 4.25rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.45rem;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

select,
input[type="range"] {
  accent-color: var(--accent);
}

select {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.3rem 0.45rem;
  background: #fff;
  color: var(--ink);
}

.status {
  flex: 1 1 100%;
  min-height: 1.2em;
  color: var(--muted);
  font-size: 0.9rem;
}

.status.error { color: var(--danger); }

.transport-btns {
  display: flex;
  gap: 0.4rem;
}

.time-row {
  flex: 1 1 100%;
  display: grid;
  grid-template-columns: 4.2rem 1fr 4.2rem;
  gap: 0.55rem;
  align-items: center;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  color: var(--muted);
}

.voices-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.6rem;
}

.voices-head h2 {
  margin: 0;
  font-size: 1.05rem;
}

.voice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.accomp-row {
  margin: 0 0 0.65rem;
  width: 100%;
}

.voice-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.voice-list li {
  display: grid;
  grid-template-columns: auto auto auto 1fr auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.voice-list li.muted {
  opacity: 0.55;
}

.voice-list li.accomp {
  opacity: 0.78;
}

.voice-list li.voice-hidden {
  opacity: 0.48;
}

.voice-list li.voice-hidden .voice-name-label {
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.voice-vis-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.3rem 0.4rem;
  line-height: 0;
}

.voice-vis-btn[aria-pressed="true"] {
  color: #6b7280;
}

.voice-vis-icon {
  display: block;
}

.voice-list .meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.voice-name {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  min-width: 0;
}

.voice-name-label {
  appearance: none;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 0.1rem 0.2rem;
  margin: 0;
  border-radius: 4px;
  cursor: text;
  text-align: left;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.voice-name-label:hover,
.voice-name-label:focus-visible {
  outline: 1px dashed var(--accent);
  outline-offset: 1px;
}

.voice-name-input {
  font: inherit;
  color: var(--ink);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 0.15rem 0.35rem;
  min-width: 6rem;
  max-width: 100%;
  background: #fff;
}

.hint {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.hint.tight {
  margin: 0;
  max-width: 28rem;
  text-align: right;
}

.view-toggle {
  display: inline-flex;
  gap: 0.3rem;
}

.sheet-zoom {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 0.35rem;
}

.sheet-key-mod {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-left: 0.15rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.sheet-key-mod-label {
  white-space: nowrap;
}

.sheet-key-mod select {
  max-width: 9.5rem;
  font: inherit;
  font-size: 0.85rem;
  padding: 0.15rem 0.35rem;
  border-radius: 6px;
  border: 1px solid var(--border, #c5d0cb);
  background: var(--panel, #fff);
  color: inherit;
}

.sheet-annot-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 0.75rem;
  margin: 0 0 0.45rem;
}

.sheet-view-mode {
  display: inline-flex;
  flex: 1 1 12rem;
  max-width: 22rem;
  min-width: min(100%, 11rem);
  padding: 0.18rem;
  gap: 0.15rem;
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--line) 55%, transparent);
  border: 1px solid color-mix(in srgb, var(--line) 80%, transparent);
}

.view-mode-btn {
  flex: 1 1 0;
  min-height: 2.55rem;
  min-width: 0;
  margin: 0;
  padding: 0.35rem 0.55rem;
  border: none;
  border-radius: 0.5rem;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.15;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.view-mode-btn:hover,
.view-mode-btn:focus-visible {
  background: color-mix(in srgb, var(--panel, #fff) 70%, transparent);
  outline: none;
}

.view-mode-btn[aria-checked="true"] {
  background: var(--panel, #fff);
  box-shadow: 0 1px 2px color-mix(in srgb, #000 16%, transparent);
}

.sheet-layer-custom {
  flex: 1 1 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
}

.sheet-layer-custom[hidden] {
  display: none !important;
}

.annot-toggles,
.annot-add {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.annot-toggle {
  min-height: 2.35rem;
}

.annot-toggle[aria-pressed="false"] {
  opacity: 0.55;
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.annot-add button[aria-pressed="true"] {
  background: var(--accent, #2f5d50);
  color: #fff;
  border-color: var(--accent, #2f5d50);
}

.sheet-music.pp-hide-staves svg {
  overflow: hidden;
  /* Inline height from the packer wins; avoid re-deriving from the full viewBox. */
}

/* Hide stave notation chrome — not lyric / chord / note text (those win below). */
.sheet-music.pp-hide-staves svg path,
.sheet-music.pp-hide-staves svg rect,
.sheet-music.pp-hide-staves svg line,
.sheet-music.pp-hide-staves svg polygon,
.sheet-music.pp-hide-staves svg polyline,
.sheet-music.pp-hide-staves svg use,
.sheet-music.pp-hide-staves [class*="vf-"] {
  visibility: hidden !important;
}

/* Keep lyrics, chord symbols, practice notes, and the playhead when staves are off.
   Must beat `svg path`/`[class*="vf-"]` specificity so text inside .lyrics stays visible.
   Cursor is an <img> sibling of the SVG — keep it visible and above text. */
.sheet-music.pp-hide-staves .lyrics,
.sheet-music.pp-hide-staves .lyrics *,
.sheet-music.pp-hide-staves .lyrics[class*="vf-"],
.sheet-music.pp-hide-staves .lyrics [class*="vf-"],
.sheet-music.pp-hide-staves svg .lyrics text,
.sheet-music.pp-hide-staves svg .lyrics tspan,
.sheet-music.pp-hide-staves .dash,
.sheet-music.pp-hide-staves .dash *,
.sheet-music.pp-hide-staves .dash[class*="vf-"],
.sheet-music.pp-hide-staves .dash [class*="vf-"],
.sheet-music.pp-hide-staves svg .dash text,
.sheet-music.pp-hide-staves svg .dash tspan,
.sheet-music.pp-hide-staves .pp-chord,
.sheet-music.pp-hide-staves .pp-chord *,
.sheet-music.pp-hide-staves .pp-chord[class*="vf-"],
.sheet-music.pp-hide-staves .pp-chord [class*="vf-"],
.sheet-music.pp-hide-staves svg .pp-chord text,
.sheet-music.pp-hide-staves svg .pp-chord tspan,
.sheet-music.pp-hide-staves .pp-annot-note,
.sheet-music.pp-hide-staves .pp-annot-note *,
.sheet-music.pp-hide-staves .pp-annot-note[class*="vf-"],
.sheet-music.pp-hide-staves .pp-annot-note [class*="vf-"],
.sheet-music.pp-hide-staves svg .pp-annot-note text,
.sheet-music.pp-hide-staves svg .pp-annot-note tspan,
.sheet-music.pp-hide-staves .osmd-cursor,
.sheet-music.pp-hide-staves img.osmd-cursor,
.sheet-music.pp-hide-staves img[id^="cursorImg-"],
.sheet-music.pp-hide-staves .cursor {
  visibility: visible !important;
}

.sheet-music.pp-hide-staves img[id^="cursorImg-"],
.sheet-music.pp-hide-staves img.osmd-cursor,
.sheet-music.pp-hide-staves .osmd-cursor {
  display: block !important;
  opacity: 1 !important;
  z-index: 20 !important;
}

/* Playhead bar — geometry is set in JS to match the active system. */
.sheet-music img.osmd-cursor,
.sheet-music .osmd-cursor {
  max-height: none !important;
  max-width: none !important;
  object-fit: fill !important;
  pointer-events: none;
}

.sheet-music.pp-hide-lyrics .lyrics,
.sheet-music.pp-hide-lyrics .dash {
  display: none !important;
}

/* Lyrics-only mode: hide duplicate lyric lines on non-carrier parts. */
.sheet-music.pp-hide-staves .pp-lyrics-suppressed {
  display: none !important;
}

/*
 * Lyric fallback: carrier voice is hidden, but we kept its staff engraved so
 * lyrics remain. Hide notation chrome on that staff; keep lyrics/dashes.
 */
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier path,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier rect,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier line,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier polygon,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier polyline,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier use,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier [class*="vf-"] {
  visibility: hidden !important;
}

.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .lyrics,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .lyrics *,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .lyrics[class*="vf-"],
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .lyrics [class*="vf-"],
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier svg .lyrics text,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .dash,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .dash *,
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .dash[class*="vf-"],
.sheet-music.pp-lyric-fallback g.staffline.pp-lyric-carrier .dash [class*="vf-"] {
  visibility: visible !important;
}

.sheet-music.pp-hide-chords .pp-chord {
  display: none !important;
}

.sheet-music.pp-hide-notes .pp-annot-note {
  display: none !important;
}

.sheet-zoom button {
  min-width: 2rem;
  padding: 0.25rem 0.5rem;
}

.sheet-zoom-label {
  min-width: 2.6rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
  font-size: 0.85rem;
  color: var(--muted);
}

.sheet-save-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 0.15rem;
}

.sheet-pdf-btn {
  margin-left: 0.15rem;
  min-width: 2.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}

.view-btn[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
}

.sheet-music {
  position: relative;
  width: 100%;
  min-width: 0;
  min-height: 220px;
  max-height: 70vh;
  overflow: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem;
  /* Pan/scroll OK; pinch is handled in JS as sheet zoom (not page zoom). */
  touch-action: pan-x pan-y;
}

.sheet-music-frame {
  position: relative;
  width: 100%;
  min-width: 0;
}

.sheet-expand-btn {
  position: absolute;
  right: 0.65rem;
  bottom: 0.65rem;
  z-index: 25;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 252, 247, 0.94);
  color: var(--muted);
  box-shadow: 0 1px 4px rgba(28, 26, 23, 0.12);
  cursor: pointer;
}

.sheet-expand-btn:hover,
.sheet-expand-btn:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
  outline: none;
}

.sheet-expand-btn .sheet-fs-icon {
  display: block;
}

.sheet-stage {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-width: 0;
  width: 100%;
}

.sheet-fs-chrome {
  display: none;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  padding: 0.45rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.sheet-fs-transport {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.sheet-fs-zoom {
  display: inline-flex;
  gap: 0.35rem;
}

.sheet-fs-hint {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.8rem;
}

.sheet-stage:fullscreen,
.sheet-stage:-webkit-full-screen {
  box-sizing: border-box;
  width: 100%;
  height: 100%;
  padding: 0.75rem 1rem 1rem;
  background: #f7f7f5;
  overflow: hidden;
}

.sheet-stage:fullscreen .sheet-fs-chrome,
.sheet-stage:-webkit-full-screen .sheet-fs-chrome {
  display: flex;
}

.sheet-stage:fullscreen .sheet-annot-bar,
.sheet-stage:-webkit-full-screen .sheet-annot-bar {
  display: none !important;
}

.sheet-stage:fullscreen .sheet-music-frame,
.sheet-stage:-webkit-full-screen .sheet-music-frame {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.sheet-stage:fullscreen .sheet-music,
.sheet-stage:-webkit-full-screen .sheet-music {
  flex: 1 1 auto;
  max-height: none;
  height: 100%;
  min-height: 0;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(28, 26, 23, 0.08);
}

body.sheet-fullscreen-active .lang-toggle {
  display: none;
}

.remarks-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.65rem;
}

.remarks-row label {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
}

.remarks-input {
  width: 100%;
  min-height: 4.5rem;
  resize: vertical;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.4;
}

.remarks-input:focus {
  outline: none;
  border-color: var(--accent);
}

.sheet-music .sheet-placeholder {
  margin: 2rem 1rem;
  text-align: center;
}

.sheet-music svg {
  max-width: 100%;
  height: auto;
  display: block;
}

.pp-editable-text {
  cursor: text;
}

.sheet-inline-edit {
  position: absolute;
  z-index: 30;
  margin: 0;
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 0.15rem 0.35rem;
  font: inherit;
  color: var(--ink);
  background: #fffef9;
  box-shadow: 0 2px 8px rgba(28, 26, 23, 0.12);
}

.sheet-annot-input {
  position: absolute;
  z-index: 35;
  min-width: 7.5rem;
  max-width: 14rem;
  margin: 0;
  border: 2px solid var(--accent);
  border-radius: 6px;
  padding: 0.25rem 0.45rem;
  font: inherit;
  font-size: 0.95rem;
  color: var(--ink);
  background: #fffef8;
  box-shadow: 0 2px 10px rgba(28, 26, 23, 0.15);
}

.sheet-music .pp-chord,
.sheet-music .pp-annot-note {
  cursor: pointer;
}

.tuning-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
}

.tuning-panel .hint {
  flex: 1 1 14rem;
  margin: 0;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  cursor: pointer;
  user-select: none;
}

.toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-ui {
  width: 2.4rem;
  height: 1.35rem;
  border-radius: 999px;
  background: #c9c2b6;
  position: relative;
  transition: background 0.15s ease;
  flex-shrink: 0;
}

.toggle-ui::after {
  content: "";
  position: absolute;
  top: 0.15rem;
  left: 0.15rem;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  transition: transform 0.15s ease;
}

.toggle input:checked + .toggle-ui {
  background: var(--accent);
}

.toggle input:checked + .toggle-ui::after {
  transform: translateX(1.05rem);
}

.toggle input:disabled + .toggle-ui {
  opacity: 0.45;
}

.toggle-label {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  line-height: 1.2;
}

.toggle-label strong {
  font-weight: 650;
}

.toggle-sub {
  color: var(--muted);
  font-size: 0.82rem;
}

.piano-roll {
  display: block;
  width: 100%;
  height: 220px;
  margin-top: 0.55rem;
  border-radius: 8px;
  border: 1px solid #111418;
  cursor: crosshair;
  touch-action: manipulation;
}

.piano-roll:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.swatch {
  width: 1rem;
  height: 1rem;
  border-radius: 3px;
  display: inline-block;
  margin-right: 0.4rem;
  vertical-align: middle;
  border: 1px solid rgba(28, 26, 23, 0.25);
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}

button.swatch {
  appearance: none;
  background: transparent;
}

@media (max-width: 560px) {
  .voice-list li {
    grid-template-columns: auto auto auto 1fr;
  }
  .voice-list .meta {
    grid-column: 1 / -1;
  }
  .hint.tight {
    text-align: left;
    max-width: none;
  }
  .sheet-annot-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .sheet-view-mode {
    max-width: none;
    flex: 1 1 auto;
  }
  .view-mode-btn {
    min-height: 2.75rem;
    font-size: 0.95rem;
  }
  .annot-add {
    width: 100%;
  }
  .annot-add button {
    flex: 1 1 auto;
    min-height: 2.5rem;
  }
}