:root {
  color-scheme: dark;
  --bg: #071018;
  --panel: #0c1924;
  --text: #f5f7fa;
  --muted: #9fb0be;
  --accent: #55e6b1;
  --line: #1d3140;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(circle at 90% 0%, #12352e 0, transparent 35rem), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}
main { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0 80px; }
header { margin-bottom: 44px; }
.brand { color: var(--accent); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
h1 { margin: 10px 0 8px; font-size: clamp(2rem, 7vw, 4.4rem); line-height: 1.05; letter-spacing: -.045em; }
h2 { margin-top: 36px; font-size: 1.25rem; }
p, li { color: var(--muted); font-size: 1rem; }
a { color: var(--accent); }
.card { background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line); border-radius: 20px; padding: 24px; }
.links { display: grid; gap: 12px; margin-top: 28px; }
.links a { display: block; padding: 15px 18px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; font-weight: 700; }
.meta { color: #718391; font-size: .9rem; }
code { color: #c8ffe9; overflow-wrap: anywhere; }
@media (max-width: 520px) { main { padding-top: 36px; } .card { padding: 19px; } }