: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 {
  position: fixed;
  inset: 0;
  z-index: 20;
  overflow-y: auto;
  box-sizing: border-box;
  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);
  color: var(--mobile-ink);
}

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

.mobile-library-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 {
  margin: 0;
  font-size: clamp(34px, 10vw, 58px);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.mobile-intro {
  margin: 18px 0 28px;
  max-width: 42ch;
  color: var(--mobile-muted);
  font-size: 18px;
  line-height: 1.45;
}

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

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

.mobile-shelf strong,
.mobile-shelf span {
  display: block;
}

.mobile-shelf strong {
  margin-bottom: 8px;
  font-size: 23px;
  line-height: 1.15;
}

.mobile-shelf span {
  color: var(--mobile-muted);
  font-size: 15px;
  line-height: 1.35;
}

.mobile-storage-note {
  margin: 24px 2px 0;
  color: var(--mobile-muted);
  font-size: 13px;
}

#mobile-toolbar {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 18;
  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;
  grid-template-columns: minmax(64px, 1fr) minmax(132px, 2fr) minmax(64px, 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;
}

#mobile-toolbar .mobile-listen {
  border-color: transparent;
  background: var(--mobile-accent);
  color: white;
  font-size: 19px;
}

#mobile-toolbar .mobile-listen.is-symbol {
  font-size: 34px;
  line-height: 1;
}

#mobile-toolbar .mobile-listen:active:not(:disabled) {
  background: var(--mobile-accent-pressed);
}

body.mobile-reader-open #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.mobile-reader-open #status {
  z-index: 19;
}

@media (max-width: 420px) {
  #mobile-toolbar {
    grid-template-columns: 72px minmax(126px, 1fr) 72px;
  }

  #mobile-toolbar button {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-shelf:active {
    transform: none;
  }
}