:root {
  color-scheme: dark;
  --bg: #030609;
  --text: #edf3f5;
  --soft: #cad3d7;
  --muted: #85949b;
  --line: rgba(203, 218, 223, 0.12);
  --cyan: #67b6d0;
  --content: 760px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 12%, rgba(103, 182, 208, 0.08), transparent 28rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px clamp(18px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
}

.nav a { color: var(--soft); text-decoration: none; }
.nav a:hover { color: var(--text); }

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 13px;
  color: var(--muted);
}

main {
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(36px, 6vw, 56px) clamp(18px, 4vw, 32px) 48px;
}

.eyebrow {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 10px 0 18px;
  font-size: clamp(28px, 5vw, 36px);
  line-height: 1.15;
  font-weight: 620;
}

.lead {
  color: var(--soft);
  font-size: 16px;
}

.updated {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 13px;
}

h2 {
  margin: 34px 0 12px;
  font-size: 19px;
  font-weight: 620;
}

p, ul, dl {
  color: var(--soft);
  font-size: 15px;
}

ul { padding-left: 1.2rem; }

li + li { margin-top: 8px; }

dl {
  margin: 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(7, 13, 18, 0.72);
}

dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

dd {
  margin: 4px 0 16px;
  color: var(--text);
  font-size: 15px;
}

dd:last-child { margin-bottom: 0; }

.card {
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(7, 13, 18, 0.72);
}

.card strong { color: var(--text); }

.site-footer {
  max-width: var(--content);
  margin: 0 auto;
  padding: 28px clamp(18px, 4vw, 32px) 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.site-footer-note {
  margin: 0 0 14px;
  color: var(--muted);
}

.site-footer-legal p { margin: 0 0 10px; }

.site-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  margin-top: 12px;
}

.site-footer-links a {
  color: var(--soft);
  text-decoration: none;
}

.site-footer-links a:hover { color: var(--text); }

@media (max-width: 640px) {
  .nav { flex-direction: column; align-items: flex-start; }
}