:root {
  color-scheme: light;
  --mobile-ink: #20221f;
  --mobile-muted: #64685f;
  --mobile-paper: #f7f5ee;
  --mobile-card: #fffdf7;
  --mobile-accent: #315c4b;
  --mobile-accent-pressed: #244638;
  --mobile-rule: rgba(32, 34, 31, 0.14);
  --mobile-toolbar-height: 84px;
}

#account { display: none !important; }

#mobile-library,
#mobile-browser {
  position: fixed;
  inset: 0;
  z-index: 20;
  box-sizing: border-box;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--mobile-paper);
  color: var(--mobile-ink);
  -webkit-overflow-scrolling: touch;
}

#mobile-library {
  padding: max(28px, env(safe-area-inset-top)) 20px max(28px, env(safe-area-inset-bottom));
  background: radial-gradient(circle at 90% 4%, rgba(76, 115, 92, 0.13), transparent 34%), var(--mobile-paper);
}

#mobile-browser {
  bottom: calc(var(--mobile-toolbar-height) + env(safe-area-inset-bottom));
  padding: max(22px, env(safe-area-inset-top)) 18px 30px;
}

#mobile-library[hidden],
#mobile-browser[hidden],
#mobile-current[hidden],
#mobile-toolbar[hidden],
#mobile-message[hidden] { display: none; }

.mobile-library-inner,
.mobile-browser-inner {
  width: min(100%, 760px);
  margin: 0 auto;
}

.mobile-eyebrow {
  margin: 0 0 8px;
  color: var(--mobile-accent);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

#mobile-library h1,
#mobile-browser-title { margin: 0; letter-spacing: -0.035em; }
#mobile-library h1 { margin-bottom: 28px; font-size: clamp(34px, 10vw, 58px); line-height: 0.98; }
#mobile-browser-title { margin-bottom: 20px; font-size: clamp(28px, 8vw, 44px); line-height: 1.05; }

.mobile-current { margin: 0 0 28px; }
.mobile-current .mobile-card { width: 100%; }

.mobile-shelf-grid,
#mobile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  grid-auto-rows: minmax(112px, auto);
  gap: 14px;
}

.mobile-shelf,
.mobile-card {
  box-sizing: border-box;
  min-height: 112px;
  padding: 18px 20px;
  border: 1px solid var(--mobile-rule);
  border-radius: 18px;
  background: var(--mobile-card);
  color: var(--mobile-ink);
  box-shadow: 0 8px 26px rgba(28, 32, 28, 0.06);
  cursor: pointer;
  text-align: left;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.mobile-card {
  display: grid;
  grid-template-columns: 74px 1fr;
  grid-template-rows: 1fr auto;
  gap: 5px 16px;
  align-items: center;
}

.mobile-card:not(:has(img)) { grid-template-columns: 1fr; }
.mobile-card img {
  grid-row: 1 / span 2;
  width: 74px;
  height: 88px;
  border-radius: 10px;
  object-fit: cover;
  background: #ece9df;
}

.mobile-shelf:active,
.mobile-card:active { transform: scale(0.985); background: #f0eee6; }

.mobile-shelf strong,
.mobile-shelf span,
.mobile-card strong,
.mobile-card span { display: block; }
.mobile-shelf strong,
.mobile-card strong { font-size: 22px; line-height: 1.18; }
.mobile-shelf strong { margin-bottom: 8px; }
.mobile-shelf span,
.mobile-card span { color: var(--mobile-muted); font-size: 15px; line-height: 1.35; }

.mobile-desktop-link {
  display: block;
  margin-top: 28px;
  padding: 12px 0;
  color: var(--mobile-accent);
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.mobile-desktop-link:active { color: var(--mobile-accent-pressed); }
/* After the shelf rules, which it overrides. */
.mobile-poem {
  width: 100%;
  margin: 0 0 14px;
  border-color: transparent;
  background: var(--mobile-accent);
  color: var(--mobile-card);
}
.mobile-poem span { color: rgba(255, 253, 247, 0.82); }
.mobile-poem:active { background: var(--mobile-accent-pressed); }

#mobile-message {
  position: fixed;
  z-index: 25;
  top: max(22px, env(safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  box-sizing: border-box;
  width: min(100%, 760px);
  margin: 0;
  padding: 16px 20px;
  border-radius: 14px;
  background: rgba(247, 245, 238, 0.96);
  color: var(--mobile-muted);
  font: 600 16px/1.4 system-ui, -apple-system, sans-serif;
}
#mobile-message.is-error { color: #8d2d25; }

#mobile-toolbar {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 30;
  box-sizing: border-box;
  height: calc(var(--mobile-toolbar-height) + env(safe-area-inset-bottom));
  padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
  display: grid;
  /* The minimums fit 421 px, the narrowest width this layout serves. */
  grid-template-columns:
    minmax(56px, 1fr) minmax(120px, 2fr) minmax(48px, 0.8fr) minmax(48px, 0.8fr) minmax(56px, 1fr);
  gap: 10px;
  border-top: 1px solid var(--mobile-rule);
  background: rgba(247, 245, 238, 0.96);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
#mobile-toolbar button {
  min-width: 0;
  min-height: 64px;
  border: 1px solid var(--mobile-rule);
  border-radius: 16px;
  background: var(--mobile-card);
  color: var(--mobile-ink);
  cursor: pointer;
  font: 700 16px/1 system-ui, -apple-system, sans-serif;
  touch-action: manipulation;
}
#mobile-toolbar button:disabled { cursor: default; opacity: 0.42; }
/* The meanings switch: accent while meanings show over the word being read. */
#mobile-toolbar .mobile-meanings { color: var(--mobile-muted); font-size: 18px; }
#mobile-toolbar .mobile-meanings[aria-pressed="true"] {
  border-color: var(--mobile-accent);
  color: var(--mobile-accent);
}
/* The shuffle switch: accent while each poem's end rolls another. */
#mobile-toolbar .mobile-shuffle {
  display: grid;
  place-items: center;
  color: var(--mobile-muted);
}
#mobile-toolbar .mobile-shuffle[aria-pressed="true"] {
  border-color: var(--mobile-accent);
  color: var(--mobile-accent);
}
#mobile-toolbar .mobile-listen {
  border-color: transparent;
  background: var(--mobile-accent);
  color: white;
  font-size: 34px;
  line-height: 1;
}
#mobile-toolbar .mobile-listen:active:not(:disabled) { background: var(--mobile-accent-pressed); }

/* The canvas keeps the reader's geometry whether or not a book is showing
   (it is hidden otherwise): resizing it on every open and Back made Kaho
   resize its surface and lay the book out again mid-transition. */
#kaho-canvas {
  position: fixed;
  inset: 0 0 calc(var(--mobile-toolbar-height) + env(safe-area-inset-bottom));
  width: 100vw;
  height: calc(100vh - var(--mobile-toolbar-height) - env(safe-area-inset-bottom));
}
body:not(.mobile-reader-open) #kaho-canvas { visibility: hidden; pointer-events: none; }

@media (max-width: 420px) {
  #mobile-toolbar {
    grid-template-columns: 60px minmax(80px, 1fr) 48px 48px 60px;
    gap: 6px;
  }
  #mobile-toolbar button { font-size: 14px; }
}
/* Five buttons on a 320 px phone. */
@media (max-width: 359px) {
  #mobile-toolbar {
    grid-template-columns: 54px minmax(64px, 1fr) 44px 44px 54px;
    gap: 4px;
    padding-inline: 8px;
  }
  #mobile-toolbar button { font-size: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  .mobile-shelf:active,
  .mobile-card:active { transform: none; }
}