:root {
  color-scheme: dark;
  --bg: #050713;
  --surface: #10152b;
  --surface-2: #171d38;
  --text: #f7f8ff;
  --muted: #b4bddb;
  --cyan: #18d8ff;
  --magenta: #ee3cff;
  --orange: #ff7433;
  --border: rgba(150, 174, 255, 0.2);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 10%, rgba(24, 216, 255, 0.18), transparent 34rem),
    radial-gradient(circle at 85% 30%, rgba(238, 60, 255, 0.16), transparent 30rem),
    var(--bg);
  line-height: 1.6;
}

main { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 72px 0; }
.hero, .card {
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(23, 29, 56, 0.94), rgba(10, 14, 31, 0.94));
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.35);
}
.hero { border-radius: 28px; padding: clamp(28px, 6vw, 64px); }
.eyebrow { color: var(--cyan); font-weight: 750; letter-spacing: .12em; text-transform: uppercase; font-size: .78rem; }
h1 { margin: 8px 0 12px; font-size: clamp(2.5rem, 8vw, 5.4rem); line-height: .96; letter-spacing: -.055em; }
h2 { margin-top: 0; font-size: 1.35rem; }
p, li { color: var(--muted); }
.lede { max-width: 680px; font-size: 1.15rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; min-height: 46px; align-items: center; padding: 0 18px; border-radius: 13px; background: linear-gradient(120deg, var(--cyan), var(--magenta)); color: #02040d; text-decoration: none; font-weight: 800; }
.button.secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; margin-top: 18px; }
.card { border-radius: 20px; padding: 24px; }
.tag { display: inline-block; margin: 5px 4px 0 0; padding: 4px 10px; border-radius: 999px; background: rgba(24, 216, 255, .1); color: var(--cyan); font-size: .8rem; }
a { color: var(--cyan); }
footer { padding: 28px 4px 0; color: var(--muted); font-size: .86rem; }
code { color: var(--orange); }
@media (max-width: 520px) { main { padding: 24px 0 48px; } .hero { border-radius: 20px; } }