:root { color-scheme: dark; --bg: #05080f; --surface: #0d1422; --text: #eef3fb; --muted: #93a0b8; --tint: #4cf5a6; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at 30% -10%, rgba(76,245,166,.18), transparent 60%), radial-gradient(ellipse at 90% -10%, rgba(156,123,255,.16), transparent 55%), var(--bg); color: var(--text); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 56px 20px 80px; }
h1 { font-size: 34px; line-height: 1.2; margin: 0 0 8px; }
h2 { font-size: 21px; margin: 36px 0 8px; }
p, li { color: var(--muted); }
a { color: var(--tint); }
.brand { color: var(--tint); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: 14px; }
.card { background: var(--surface); border: 1px solid rgba(255,255,255,.08); border-radius: 20px; padding: 20px; margin-top: 20px; }
footer { margin-top: 48px; font-size: 14px; color: var(--muted); }