*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --cream: #f5f0e8;
  --ink: #2c2416;
  --ink-light: #5a4e3a;
  --warm-border: #d4c8a8;
  --shadow: rgba(44, 36, 22, 0.12);
}

html, body {
  height: 100%;
}

body {
  background: var(--cream);
  color: var(--ink);
  font-family: Georgia, 'Times New Roman', serif;
  min-height: 100vh;
}

#app {
  max-width: 680px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

/* Bookshelf */

.shelf-header h1 {
  font-size: 1.6rem;
  font-weight: normal;
  letter-spacing: 0.02em;
  text-align: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--warm-border);
  margin-bottom: 2rem;
}

.shelf {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.song-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: 100%;
  background: none;
  border: 1px solid var(--warm-border);
  border-radius: 4px;
  padding: 0.75rem;
  cursor: pointer;
  text-align: left;
  color: var(--ink);
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.song-card:hover,
.song-card:focus-visible {
  border-color: var(--ink-light);
  box-shadow: 0 2px 8px var(--shadow);
  outline: none;
}

.song-thumb {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 2px;
  flex-shrink: 0;
}

/* Optional bookshelf focus crop from layout.json thumbnailCrop — app.js sets
   the image size/offset inline as percentages of this square frame. Songs
   without a usable crop keep the plain object-fit thumb above. */
.song-thumb-frame {
  position: relative;
  overflow: hidden;
}

.song-thumb-frame .song-thumb-crop {
  position: absolute;
  max-width: none;
}

.song-title {
  font-size: 1.1rem;
  font-weight: normal;
  line-height: 1.3;
}

/* Song page */

.song-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--warm-border);
  margin-bottom: 1.75rem;
}

.back-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--ink-light);
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0;
  flex-shrink: 0;
}

.back-btn:hover,
.back-btn:focus-visible {
  color: var(--ink);
  text-decoration: underline;
  outline: none;
}

.song-page-title {
  font-size: 1.4rem;
  font-weight: normal;
  letter-spacing: 0.01em;
}

.song-illustration {
  display: block;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 3px;
  box-shadow: 0 3px 14px var(--shadow);
}

/* Audio controls */

.audio-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1.75rem;
}

.pitch-selector {
  display: flex;
  gap: 0.5rem;
}

.pitch-btn {
  background: none;
  border: 1px solid var(--warm-border);
  border-radius: 3px;
  padding: 0.4rem 1rem;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--ink-light);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.pitch-btn:hover,
.pitch-btn:focus-visible {
  border-color: var(--ink-light);
  color: var(--ink);
  outline: none;
}

.pitch-btn.active {
  border-color: var(--ink);
  color: var(--ink);
  font-weight: bold;
}

.play-pause-btn {
  background: none;
  border: 1px solid var(--ink);
  border-radius: 3px;
  padding: 0.5rem 1.75rem;
  font-family: inherit;
  font-size: 1rem;
  color: var(--ink);
  cursor: pointer;
  transition: box-shadow 0.15s ease;
  min-width: 9rem;
}

.play-pause-btn:hover,
.play-pause-btn:focus-visible {
  box-shadow: 0 2px 6px var(--shadow);
  outline: none;
}

/* Lyrics */

.lyrics {
  white-space: pre-wrap;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  max-width: 480px;
  margin: 2rem auto 0;
  text-align: left;
}

/* Utility */

.loading, .error {
  text-align: center;
  color: var(--ink-light);
  margin-top: 3rem;
  font-size: 1rem;
}

/* Song page — illustration-first overrides */

#app.song-view {
  padding-left: 0;
  padding-right: 0;
  padding-top: 1rem;
}

#app.song-view .song-header {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0.75rem;
}

#app.song-view .song-illustration {
  max-width: 100%;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

#app.song-view .audio-controls {
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  margin-top: 1.25rem;
}

#app.song-view .lyrics {
  max-width: 100%;
  margin: 1.5rem 0 0;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

/* Landscape spread — neutral in portrait (display:contents removes box, keeps children in flow) */

.spread-frame,
.spread-artboard {
  display: contents;
}

.landscape-back-btn {
  display: none;
}

/* Landscape spread — full-bleed illustrated spread */

@media (orientation: landscape) {
  #app.song-view.landscape-spread {
    max-width: none;
    padding: 0;
  }

  #app.song-view.landscape-spread .song-header {
    display: none;
  }

  #app.song-view.landscape-spread .spread-frame {
    display: block;
    position: fixed;
    inset: 0;
    overflow: hidden;
  }

  #app.song-view.landscape-spread .spread-artboard {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    aspect-ratio: var(--artboard-ratio, 1.333);
    width: max(100%, calc(100dvh * var(--artboard-ratio, 1.333)));
  }

  #app.song-view.landscape-spread .song-illustration {
    display: block;
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: fill;
    max-width: none;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
  }

  #app.song-view.landscape-spread .audio-controls {
    position: absolute;
    left: var(--controls-x);
    top: var(--controls-y);
    width: var(--controls-w);
    height: var(--controls-h);
    margin: 0;
    padding: 0.5rem;
  }

  #app.song-view.landscape-spread .lyrics {
    position: absolute;
    left: var(--lyrics-x);
    top: var(--lyrics-y);
    width: var(--lyrics-w);
    height: var(--lyrics-h);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    max-width: none;
    margin: 0;
    padding: 0.5rem;
  }

  /* Quiet panel — warm paper behind lyrics and controls; opt-in per song via
     quietPanel in layout.json (app.js sets the class and variables), landscape
     spread only. Background sits on the scroll container itself so it stays put
     while lyrics scroll; same-color box-shadow feathers the edges without
     backdrop-filter. */
  #app.song-view.landscape-spread.quiet-panel-enabled .audio-controls,
  #app.song-view.landscape-spread.quiet-panel-enabled .lyrics {
    background: var(--quiet-panel-bg);
    border-radius: 8px;
    box-shadow: 0 0 var(--quiet-panel-softness) calc(var(--quiet-panel-softness) * 2 / 3) var(--quiet-panel-bg);
  }

  #app.song-view.landscape-spread .landscape-back-btn {
    display: block;
    position: fixed;
    top: calc(0.75rem + env(safe-area-inset-top, 0px));
    left: calc(1rem + env(safe-area-inset-left, 0px));
    z-index: 100;
  }
}