:root {
  --lime: #c8ff00;
  --bg: #05050a;
  --surface: #141420;
  --line: rgba(255,255,255,.08);
  --ink-1: rgba(255,255,255,.95);
  --ink-2: rgba(255,255,255,.68);
  --ink-3: rgba(255,255,255,.44);
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink-1);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased; }
body { min-height: 100vh;
  background-image: radial-gradient(ellipse 100% 45% at 50% -20%, rgba(200,255,0,.07), transparent 60%);
  background-attachment: fixed; }
a { color: var(--lime); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 720px; margin: 0 auto; padding: 24px 18px 80px; }
header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.brand { font-weight: 800; color: var(--lime); letter-spacing: -.02em; font-size: 20px; }
nav a { color: var(--ink-3); font-size: 13px; margin-left: 14px; }
h1 { font-size: 28px; letter-spacing: -.03em; margin: 0 0 8px; line-height: 1.2; }
.lead { color: var(--ink-2); font-size: 16px; margin: 0 0 28px; }
h2 { font-size: 18px; margin: 28px 0 8px; letter-spacing: -.02em; }
p, li { color: var(--ink-2); }
ul { padding-left: 18px; }
li { margin: 6px 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; margin: 12px 0; }
.num { color: var(--lime); font-weight: 800; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.muted { color: var(--ink-3); font-size: 13px; }
.cta { display: inline-block; margin-top: 24px; background: var(--lime); color: #08080e;
  font-weight: 700; padding: 14px 22px; border-radius: 14px; }
.cta:hover { text-decoration: none; }
footer { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 12px; }
@media (max-width: 520px) {
  nav a:not(.home) { display: none; }
  h1 { font-size: 24px; }
}