:root {
  color-scheme: dark;
  --bg: #020818;
  --panel: #07142b;
  --line: rgba(110, 188, 255, 0.24);
  --text: #f4f8ff;
  --muted: #a9bad4;
  --accent: #18c9ff;
  --accent-2: #2876ff;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 10%, rgba(24, 201, 255, 0.16), transparent 32rem),
    radial-gradient(circle at 12% 75%, rgba(40, 118, 255, 0.12), transparent 28rem),
    var(--bg);
  color: var(--text);
  font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: var(--accent); }

.shell { width: min(960px, calc(100% - 36px)); margin: 0 auto; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: center; gap: 13px; color: var(--text); text-decoration: none; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 46px; height: 46px; border-radius: 13px; }
nav { display: flex; flex-wrap: wrap; gap: 20px; }
nav a { color: var(--muted); text-decoration: none; font-weight: 650; }
nav a:hover, nav a:focus-visible { color: var(--text); }

main { padding: 76px 0 90px; }
.hero { max-width: 760px; padding: 36px 0 64px; }
.eyebrow { color: var(--accent); font-size: .82rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1 { margin: 12px 0 20px; font-size: clamp(2.6rem, 8vw, 5.6rem); line-height: .98; letter-spacing: -.05em; }
.lead { max-width: 650px; color: var(--muted); font-size: clamp(1.05rem, 2.5vw, 1.3rem); }
.links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.button { display: inline-flex; padding: 12px 18px; border: 1px solid var(--line); border-radius: 999px; color: var(--text); text-decoration: none; background: rgba(7, 20, 43, .75); }
.button.primary { border-color: transparent; background: linear-gradient(115deg, var(--accent-2), var(--accent)); color: #001329; font-weight: 850; }

.card { margin-top: 28px; padding: clamp(24px, 5vw, 48px); border: 1px solid var(--line); border-radius: 28px; background: rgba(7, 20, 43, .76); box-shadow: 0 30px 90px rgba(0,0,0,.25); }
.card h1 { font-size: clamp(2.2rem, 5vw, 4rem); }
h2 { margin: 34px 0 8px; font-size: 1.35rem; }
p, li { color: var(--muted); }
.updated { color: var(--accent); font-weight: 700; }
footer { padding: 24px 0 38px; border-top: 1px solid var(--line); color: var(--muted); font-size: .92rem; }

@media (max-width: 640px) {
  header { align-items: flex-start; }
  nav { gap: 12px; justify-content: flex-end; }
  main { padding-top: 42px; }
}