:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg: #f7f7fc;
  --card: rgba(255, 255, 255, .92);
  --text: #17142f;
  --muted: #625f76;
  --accent: #5146d8;
  --border: rgba(69, 60, 141, .16);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(102, 88, 232, .16), transparent 34rem),
    radial-gradient(circle at 88% 8%, rgba(36, 170, 188, .13), transparent 30rem),
    var(--bg);
  line-height: 1.65;
}

main { width: min(860px, calc(100% - 32px)); margin: 0 auto; padding: 64px 0 80px; }
header, section, nav.card {
  margin-bottom: 18px;
  padding: clamp(22px, 5vw, 38px);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 16px 48px rgba(37, 28, 94, .08);
}

.eyebrow { color: var(--accent); font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: .2em 0; font-size: clamp(2.2rem, 7vw, 4.2rem); line-height: 1.05; }
h2 { margin-top: 0; line-height: 1.2; }
h3 { margin-bottom: .3em; }
p, li { color: var(--muted); }
a { color: var(--accent); font-weight: 650; }
.links { display: flex; flex-wrap: wrap; gap: 12px 20px; }
.links a { text-decoration: none; }
.updated, .fine { font-size: .92rem; color: var(--muted); }
.language { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--border); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

@media (prefers-color-scheme: dark) {
  :root { --bg: #0f0d21; --card: rgba(27, 24, 56, .94); --text: #f5f3ff; --muted: #c5c0da; --accent: #aaa3ff; --border: rgba(180, 170, 255, .18); }
}