:root {
  --bg: #0b1020;
  --surface: #12182b;
  --text: #f5f7fb;
  --muted: #a9b2c8;
  --accent: #7c5cff;
  --accent-2: #22d3ee;
  --container: 1200px;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.site-header,
.site-footer {
  padding: 20px 0;
}

.site-header .container,
.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo,
.site-nav a {
  color: var(--text);
  text-decoration: none;
}

.hero {
  padding: 120px 0;
  background:
    radial-gradient(circle at top right, rgba(124,92,255,.20), transparent 32%),
    radial-gradient(circle at left center, rgba(34,211,238,.14), transparent 25%);
}

.hero h1 {
  font-size: clamp(42px, 8vw, 84px);
  line-height: .95;
  margin: 0 0 18px;
  max-width: 10ch;
}

.hero p {
  color: var(--muted);
  max-width: 60ch;
  font-size: 1.1rem;
  margin-bottom: 28px;
}

.button {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}