:root {
  --bg: #061827;
  --card: #0e2b43;
  --card-2: #123553;
  --text: #eef7ff;
  --muted: #a9bfd2;
  --accent: #3dd6b5;
  --accent-2: #7cc7ff;
  --line: rgba(255,255,255,0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at top left, #143b5c 0, #061827 42%, #03101b 100%);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.brand {
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}
.nav-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-links a {
  color: var(--muted);
  font-size: 14px;
}

.hero {
  padding: 72px 0 48px;
}
.badge {
  display: inline-flex;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(61,214,181,0.08);
  font-weight: 700;
  font-size: 13px;
}
h1 {
  margin: 18px 0 14px;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.055em;
}
.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 22px);
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 14px;
  background: var(--accent);
  color: #042017;
  font-weight: 800;
}
.button.secondary {
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border: 1px solid var(--line);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 24px 0 64px;
}
.card {
  padding: 24px;
  background: linear-gradient(180deg, var(--card), rgba(14,43,67,0.72));
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 18px 60px rgba(0,0,0,0.22);
}
.card h2, .card h3 {
  margin-top: 0;
  line-height: 1.2;
}
.card p, .card li { color: var(--muted); }

.page {
  padding: 48px 0 72px;
}
.page-card {
  max-width: 860px;
  padding: clamp(24px, 5vw, 48px);
  background: rgba(14,43,67,0.78);
  border: 1px solid var(--line);
  border-radius: 28px;
}
.page h1 { font-size: clamp(34px, 5vw, 56px); }
.page h2 { margin-top: 34px; }
.updated { color: var(--muted); }
.notice {
  margin: 24px 0;
  padding: 16px;
  border-radius: 16px;
  background: rgba(124,199,255,0.08);
  border: 1px solid rgba(124,199,255,0.24);
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
  font-size: 14px;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
  .nav-inner { align-items: flex-start; flex-direction: column; }
  .nav-links { justify-content: flex-start; }
}