:root {
  color-scheme: dark;
  --bg: #020617;
  --surface: #0f172a;
  --surface-2: #172554;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --blue: #38bdf8;
  --violet: #a78bfa;
  --green: #34d399;
  --border: rgba(255,255,255,.12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 85% 5%, rgba(56,189,248,.18), transparent 32rem),
    radial-gradient(circle at 5% 35%, rgba(124,58,237,.14), transparent 30rem),
    var(--bg);
  line-height: 1.65;
}
a { color: var(--blue); }
header, main, footer { width: min(1080px, calc(100% - 32px)); margin-inline: auto; }
header { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-weight: 800; }
.brand img { width: 44px; height: 44px; }
nav { display: flex; gap: 18px; flex-wrap: wrap; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover, nav a:focus { color: var(--text); }
.hero { padding: 86px 0 58px; display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: 44px; }
.eyebrow { color: var(--green); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; font-size: .78rem; }
h1 { font-size: clamp(2.5rem, 7vw, 5rem); line-height: 1.03; margin: 14px 0 20px; letter-spacing: -.04em; }
h2 { font-size: clamp(1.7rem, 4vw, 2.7rem); line-height: 1.15; }
h3 { margin-bottom: 8px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 720px; }
.mark { width: min(100%, 360px); margin-inline: auto; filter: drop-shadow(0 24px 60px rgba(0,0,0,.45)); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.button { display: inline-flex; min-height: 48px; align-items: center; padding: 0 20px; border-radius: 14px; color: #02131d; background: var(--blue); text-decoration: none; font-weight: 800; }
.button.secondary { color: var(--text); background: transparent; border: 1px solid var(--border); }
section { padding: 44px 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { border: 1px solid var(--border); border-radius: 22px; padding: 24px; background: linear-gradient(145deg, rgba(15,23,42,.92), rgba(23,37,84,.56)); }
.cta-card { background: linear-gradient(135deg, rgba(56,189,248,.16), rgba(167,139,250,.14)); }
.card p, .muted { color: var(--muted); }
.policy { max-width: 840px; }
.policy h1 { font-size: clamp(2.2rem, 6vw, 4rem); }
.policy h2 { margin-top: 40px; }
.notice { border-left: 4px solid var(--green); padding: 16px 20px; background: rgba(52,211,153,.08); border-radius: 8px 16px 16px 8px; }
.button:focus-visible, a:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; }
footer { margin-top: 70px; padding: 32px 0 48px; border-top: 1px solid var(--border); color: var(--muted); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
@media (max-width: 760px) {
  header { align-items: flex-start; flex-direction: column; }
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .mark { order: -1; width: 220px; }
  .grid { grid-template-columns: 1fr; }
}