:root {
  color-scheme: light dark;
  --bg: #faf7f2;
  --fg: #2a2320;
  --muted: #7a6f66;
  --card: #ffffff;
  --border: #e6dfd5;
  --accent: #a15c38;
  --accent-fg: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1815;
    --fg: #ede6dd;
    --muted: #a89c8f;
    --card: #26201c;
    --border: #3a322c;
    --accent: #d68a5c;
    --accent-fg: #1c1815;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Georgia', 'Iowan Old Style', serif;
  background: var(--bg);
  color: var(--fg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.brand {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.search-form {
  display: flex;
  gap: 0.5rem;
  flex: 1;
  max-width: 480px;
  min-width: 220px;
}

.search-form input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--fg);
  font-size: 1rem;
}

.search-form button,
.player button,
.pager button,
.back-btn {
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  border-radius: 6px;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  font-size: 1rem;
}

.search-form button {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

.view { padding: 1.5rem; max-width: 1100px; margin: 0 auto; }
.hidden { display: none !important; }

.section-title { font-weight: normal; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.25rem;
}

.book-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.1s ease;
}

.book-card:hover { transform: translateY(-2px); }

.book-cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border-radius: 4px;
  background: var(--border);
}

.book-cover.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 0.5rem;
}

.book-title {
  font-size: 0.95rem;
  font-weight: bold;
  line-height: 1.3;
}

.book-author {
  font-size: 0.85rem;
  color: var(--muted);
}

.no-audio-tag {
  font-size: 0.7rem;
  color: var(--muted);
}

.pager {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: center;
  margin-top: 2rem;
}

.back-btn { margin-bottom: 1rem; }

.reader-title { margin-bottom: 0.1rem; }
.reader-author { color: var(--muted); margin-top: 0; }

.player {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 1rem 0 1.5rem;
  position: sticky;
  top: 0.5rem;
  z-index: 10;
}

.player button { min-width: 2.5rem; }

.rate-label, .voice-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.voice-label select {
  max-width: 180px;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.progress-indicator {
  margin-left: auto;
  font-size: 0.85rem;
  color: var(--muted);
}

.reader-text {
  font-size: 1.15rem;
  line-height: 1.8;
}

.reader-text p {
  margin: 0 0 1.1rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  cursor: pointer;
}

.reader-text p.active {
  background: var(--accent);
  color: var(--accent-fg);
}

.status-msg {
  color: var(--muted);
  padding: 2rem 0;
  text-align: center;
}