:root {
  color-scheme: dark;
  --bg: #100d1c;
  --card: rgba(255, 255, 255, 0.07);
  --text: #f6f2ff;
  --muted: #bcb5cf;
  --violet: #aaa0ff;
  --yellow: #ffd85c;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(143, 125, 255, .28), transparent 38rem),
    radial-gradient(circle at 95% 10%, rgba(211, 126, 231, .14), transparent 32rem),
    var(--bg);
  line-height: 1.75;
}
a { color: var(--violet); }
.shell { width: min(900px, calc(100% - 36px)); margin: 0 auto; }
nav { display: flex; align-items: center; justify-content: space-between; padding: 22px 0; }
.brand { color: var(--text); text-decoration: none; font-size: 20px; font-weight: 750; }
.nav-links { display: flex; gap: 16px; font-size: 14px; }
.hero { padding: 76px 0 48px; text-align: center; }
.moon { font-size: 66px; filter: drop-shadow(0 12px 35px rgba(255, 216, 92, .2)); }
h1 { margin: 14px 0 8px; font-size: clamp(38px, 8vw, 72px); line-height: 1.12; }
h2 { margin-top: 34px; line-height: 1.35; }
.lead { color: var(--muted); font-size: 18px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 32px 0 70px; }
.card, article { background: var(--card); border: 1px solid rgba(255,255,255,.1); border-radius: 22px; padding: 24px; backdrop-filter: blur(14px); }
.card h2 { margin-top: 0; font-size: 18px; }
.card p, article p, article li { color: #ddd7ec; }
article { margin: 28px auto 60px; }
article h1 { font-size: 36px; }
.meta { color: var(--muted); font-size: 14px; }
.contact { font-size: 18px; }
footer { color: var(--muted); padding: 22px 0 40px; text-align: center; font-size: 13px; }
@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .nav-links { gap: 10px; }
  .hero { padding-top: 42px; }
  article { padding: 19px; }
}