/* Same self-hosted face as the books; generated by scripts/fetch-fonts.ps1. */
@import url("/shared/fonts/noto-sans-hk.css");

:root {
  --bg: #ffffff;
  --fg: #1f2933;
  --muted: #5c6b7a;
  --accent: #0b6e4f;
  --border: #e2e8f0;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181d;
    --fg: #e6edf3;
    --muted: #9aa7b4;
    --accent: #4fd1a5;
    --border: #2a323b;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 1.5rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans",
    "Noto Sans HK", "PingFang HK", "Noto Sans CJK HK", "Microsoft JhengHei",
    sans-serif;
  line-height: 1.65;
}

.hero,
main,
footer {
  max-width: 52rem;
  margin: 0 auto;
}

.lang-switch {
  max-width: 52rem;
  margin: 0 auto;
  display: flex;
  gap: 1rem;
  padding-top: 1.5rem;
  font-size: 0.9rem;
}

.lang-switch [aria-current="true"] {
  font-weight: 600;
}

.lang-choices {
  display: flex;
  gap: 1.5rem;
  font-size: 1.1rem;
}

.hero {
  padding: 4rem 0 2rem;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 38rem;
}

main {
  padding-top: 2.5rem;
}

a {
  color: var(--accent);
}

.book-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
}

.book-card {
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.25rem 1.5rem;
}

.book-card h3 {
  margin-top: 0;
}

.book-card p {
  color: var(--muted);
}

.downloads {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
  margin-bottom: 0;
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}