:root {
  color-scheme: dark;
  --ink: #07101c;
  --panel: #112235;
  --line: rgba(255, 255, 255, 0.1);
  --text: #f5f7fa;
  --muted: #a7b3bf;
  --amber: #e7a95b;
  --teal: #65c8bc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 5%, rgba(101, 200, 188, 0.12), transparent 28rem),
    radial-gradient(circle at 10% 25%, rgba(231, 169, 91, 0.12), transparent 24rem),
    var(--ink);
  line-height: 1.65;
}

a { color: var(--teal); }
.shell { width: min(920px, calc(100% - 36px)); margin: 0 auto; }
nav { display: flex; align-items: center; justify-content: space-between; padding: 24px 0; }
.brand { color: var(--text); font-weight: 760; text-decoration: none; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 20px; font-size: 14px; }
.nav-links a { color: var(--muted); text-decoration: none; }
.nav-links a:hover { color: var(--text); }
main { padding: 56px 0 88px; }
.eyebrow { color: var(--amber); font-size: 12px; font-weight: 750; letter-spacing: 0.14em; text-transform: uppercase; }
h1 { max-width: 760px; margin: 12px 0 20px; font-size: clamp(38px, 7vw, 68px); line-height: 1.02; letter-spacing: -0.045em; }
h2 { margin-top: 40px; font-size: 24px; letter-spacing: -0.02em; }
h3 { margin-top: 28px; }
.lead { max-width: 700px; color: var(--muted); font-size: 19px; }
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 40px; }
.card, .document {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(17, 34, 53, 0.72);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.2);
}
.card { padding: 22px; }
.card strong { display: block; margin-bottom: 8px; }
.card p { color: var(--muted); margin: 0; font-size: 14px; }
.document { padding: clamp(24px, 5vw, 52px); }
.document h1 { font-size: clamp(34px, 6vw, 54px); }
.document p, .document li { color: #c3ccd5; }
.notice { margin: 26px 0; padding: 18px 20px; border-left: 3px solid var(--amber); background: rgba(231, 169, 91, 0.08); border-radius: 0 14px 14px 0; }
.button { display: inline-block; margin-top: 24px; padding: 13px 18px; border-radius: 14px; background: var(--amber); color: #101722; font-weight: 750; text-decoration: none; }
footer { padding: 30px 0 46px; color: var(--muted); border-top: 1px solid var(--line); font-size: 13px; }
code { color: #ffd59a; }

@media (max-width: 680px) {
  .card-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 12px; }
  main { padding-top: 34px; }
}