:root {
  --bg: #ffffff;
  --fg: #111418;
  --muted: #5b6470;
  --border: #e6e8ec;
  --accent: #1d6df1;
  --card: #f7f8fa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0e12;
    --fg: #e8ebf0;
    --muted: #8b94a3;
    --border: #1f242c;
    --accent: #6ba1ff;
    --card: #14171d;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Figtree', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 96px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  color: var(--fg);
  letter-spacing: -0.01em;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 24px;
  font-size: 14px;
  font-weight: 500;
}

nav a:hover { color: var(--fg); }

h1 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

h2 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 40px 0 12px;
}

p, li { color: var(--fg); }

.lead {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 0;
}

.updated {
  display: inline-block;
  margin-top: 16px;
  padding: 4px 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
}

ul { padding-left: 20px; }
li { margin-bottom: 6px; }

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 24px 0;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.home-hero {
  text-align: center;
  padding: 32px 0 16px;
}

.home-hero p {
  color: var(--muted);
  font-size: 17px;
  max-width: 520px;
  margin: 12px auto 0;
}

.links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.links a {
  display: block;
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--fg);
  transition: border-color 0.15s;
}

.links a:hover { border-color: var(--accent); }

.links strong {
  display: block;
  font-size: 16px;
  margin-bottom: 4px;
}

.links span {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 540px) {
  .container { padding: 40px 20px 64px; }
  h1 { font-size: 28px; }
  .links { grid-template-columns: 1fr; }
  nav a { margin-left: 16px; }
}