:root {
  color-scheme: dark;
  --background: #070b17;
  --panel: #0d1428;
  --panel-soft: #111a33;
  --text: #f7f8ff;
  --muted: #abb5d0;
  --line: rgba(255, 255, 255, .12);
  --cyan: #6ce5ff;
  --violet: #8b7cff;
}

* { box-sizing: border-box; }

html { background: var(--background); }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 15% 0%, rgba(108, 229, 255, .12), transparent 32rem),
    radial-gradient(circle at 90% 25%, rgba(139, 124, 255, .13), transparent 36rem),
    var(--background);
  color: var(--text);
  font-family: Inter, ui-rounded, system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--cyan); }
a:hover { color: #b9f4ff; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 11, 23, .92);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  width: min(1040px, calc(100% - 32px));
  min-height: 66px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 900;
  letter-spacing: -.04em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #fff 0 6%, #85ecff 8% 26%, #6959ee 62%, #3520a0);
  font-size: .7rem;
}

.site-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 16px; }
.site-nav a { color: #cbd4e9; font-size: .86rem; font-weight: 700; text-decoration: none; }
.site-nav a[aria-current="page"], .site-nav a:hover { color: var(--cyan); }

main {
  width: min(820px, calc(100% - 32px));
  margin: 58px auto 90px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -.035em; }
h1 { max-width: 760px; margin: 0 0 20px; font-size: clamp(2.5rem, 8vw, 4.8rem); }
h2 { margin-top: 46px; font-size: 1.65rem; }
h3 { margin-top: 28px; font-size: 1.12rem; }
p, li { color: #c7cfe2; }
.lede { max-width: 710px; color: var(--muted); font-size: 1.15rem; }
.updated { color: #7f8aa8; font-size: .82rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0;
}

.info-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(17, 26, 51, .94), rgba(10, 16, 32, .94));
}

.info-card h2, .info-card h3 { margin-top: 0; }
.info-card p:last-child { margin-bottom: 0; }

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  padding: 0 20px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--violet), #4ecded);
  color: #07101e;
  font-weight: 900;
  text-decoration: none;
}

.notice {
  margin: 28px 0;
  padding: 18px 20px;
  border: 1px solid rgba(108, 229, 255, .3);
  border-radius: 14px;
  background: rgba(108, 229, 255, .07);
}

.site-footer {
  border-top: 1px solid var(--line);
  color: #8792ae;
}

.footer-wrap {
  width: min(1040px, calc(100% - 32px));
  margin: auto;
  padding: 28px 0 42px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  font-size: .8rem;
}

.footer-links { display: flex; flex-wrap: wrap; gap: 14px; }
.footer-links a { color: #aeb8d1; }

@media (max-width: 680px) {
  .nav-wrap { padding: 12px 0; align-items: flex-start; flex-direction: column; }
  .site-nav { justify-content: flex-start; gap: 10px 14px; }
  .card-grid { grid-template-columns: 1fr; }
  main { margin-top: 38px; }
}