:root {
  color-scheme: dark;
  --bg: #08151d;
  --panel: #102631;
  --panel-soft: #0c1e27;
  --text: #f3f8f5;
  --muted: #a9bab5;
  --line: #24404b;
  --mint: #79c9aa;
  --mint-soft: #183c35;
  --amber: #f2be62;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, rgba(121, 201, 170, 0.16), transparent 32rem),
    var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--mint); text-underline-offset: 3px; }
a:hover { color: #a6e2ca; }
.shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; }
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-weight: 850; }
.mark { width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center; background: var(--mint-soft); color: var(--mint); }
.nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 14px; font-size: 0.9rem; }
.hero { padding: 70px 0 32px; }
.eyebrow { color: var(--mint); font-size: 0.78rem; font-weight: 850; letter-spacing: 0.13em; text-transform: uppercase; }
h1 { max-width: 760px; margin: 12px 0 18px; font-size: clamp(2.15rem, 7vw, 4.5rem); line-height: 1.02; letter-spacing: -0.045em; }
.lead { max-width: 720px; color: var(--muted); font-size: clamp(1.02rem, 2.5vw, 1.25rem); }
.meta { margin-top: 18px; color: var(--muted); font-size: 0.92rem; }
.notice { margin: 28px 0; padding: 18px 20px; border: 1px solid rgba(242, 190, 98, 0.35); border-radius: 18px; background: rgba(242, 190, 98, 0.08); }
.notice strong { color: var(--amber); }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 28px 0 52px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(145deg, var(--panel), var(--panel-soft)); }
.card h2 { margin-top: 0; font-size: 1.2rem; }
.card p:last-child { margin-bottom: 0; }
.article { padding: 20px 0 70px; }
.article section { padding: 24px 0; border-top: 1px solid var(--line); }
.article h2 { margin: 0 0 12px; font-size: clamp(1.3rem, 3vw, 1.75rem); letter-spacing: -0.02em; }
.article h3 { margin: 20px 0 8px; font-size: 1.05rem; }
.article p, .article li { color: #d2ded9; }
.article li + li { margin-top: 7px; }
.article ul { padding-left: 22px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.button { display: inline-flex; min-height: 48px; align-items: center; padding: 0 18px; border-radius: 14px; background: var(--mint); color: #082017; text-decoration: none; font-weight: 850; }
.button.secondary { border: 1px solid var(--line); background: transparent; color: var(--text); }
footer { padding: 28px 0 42px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
footer .shell { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
@media (max-width: 680px) {
  .nav { align-items: flex-start; padding: 18px 0; }
  .nav-links { gap: 9px; }
  .hero { padding-top: 48px; }
  .grid { grid-template-columns: 1fr; }
  .card { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }