:root {
  color-scheme: light dark;
  --background: #f5f7fb;
  --surface: rgba(255, 255, 255, 0.92);
  --text: #172033;
  --muted: #5f6b80;
  --accent: #2563eb;
  --border: rgba(23, 32, 51, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0d1424;
    --surface: rgba(21, 31, 52, 0.92);
    --text: #f5f7fb;
    --muted: #b2bdd0;
    --accent: #79a7ff;
    --border: rgba(255, 255, 255, 0.14);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.16), transparent 34rem),
    var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

main {
  width: min(760px, calc(100% - 32px));
  margin: 48px auto;
  padding: clamp(24px, 5vw, 48px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.10);
  backdrop-filter: blur(18px);
}

nav { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 40px; }
nav a, a { color: var(--accent); }
h1 { font-size: clamp(2rem, 8vw, 3.5rem); line-height: 1.08; margin: 0 0 16px; }
h2 { margin-top: 36px; font-size: 1.35rem; }
p, li { color: var(--muted); }
.lede { font-size: 1.15rem; }
.cards { display: grid; gap: 16px; margin-top: 32px; }
.card { display: block; padding: 22px; border: 1px solid var(--border); border-radius: 18px; text-decoration: none; }
.card strong { display: block; color: var(--text); font-size: 1.1rem; margin-bottom: 6px; }
.card span { color: var(--muted); }
.language { margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--border); }
.meta { font-size: 0.9rem; color: var(--muted); }