:root {
  color-scheme: light dark;
  --bg: #f4f7fb;
  --surface: rgba(255, 255, 255, 0.86);
  --text: #162033;
  --muted: #5b667a;
  --line: rgba(22, 32, 51, 0.12);
  --accent: #4a5ee8;
  --accent-soft: #e9ecff;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(111, 128, 255, 0.18), transparent 32rem),
    var(--bg);
  line-height: 1.65;
}
a { color: var(--accent); text-underline-offset: 0.18em; }
.shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; }
header { padding: 28px 0 12px; }
nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { color: var(--text); font-weight: 800; text-decoration: none; letter-spacing: -0.02em; }
.links { display: flex; flex-wrap: wrap; gap: 16px; font-size: 0.93rem; }
.links a { color: var(--muted); text-decoration: none; }
main { padding: 38px 0 72px; }
.hero { padding: 54px 0 34px; max-width: 760px; }
.eyebrow { color: var(--accent); font-size: 0.8rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
h1 { margin: 12px 0 16px; font-size: clamp(2.35rem, 7vw, 4.6rem); line-height: 1.02; letter-spacing: -0.055em; }
h2 { margin: 36px 0 10px; font-size: 1.35rem; letter-spacing: -0.02em; }
h3 { margin: 24px 0 6px; font-size: 1.05rem; }
p, li { color: var(--muted); }
.lede { font-size: clamp(1.05rem, 2.3vw, 1.25rem); max-width: 680px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 26px 0; }
.card, .document {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(34, 46, 86, 0.06);
}
.card { padding: 22px; }
.card strong { display: block; margin-bottom: 6px; }
.card p { margin: 0; font-size: 0.93rem; }
.document { padding: clamp(22px, 5vw, 54px); }
.meta { padding-bottom: 18px; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
.notice { padding: 16px 18px; border-radius: 14px; background: var(--accent-soft); color: #3344b4; }
footer { padding: 26px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem; }
ul { padding-left: 1.2rem; }

@media (max-width: 700px) {
  .cards { grid-template-columns: 1fr; }
  nav { align-items: flex-start; flex-direction: column; }
  .hero { padding-top: 34px; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1220;
    --surface: rgba(23, 30, 49, 0.88);
    --text: #eef1ff;
    --muted: #aeb7cd;
    --line: rgba(229, 233, 255, 0.12);
    --accent: #9ca9ff;
    --accent-soft: #202959;
  }
  .notice { color: #c6ceff; }
}