:root {
  --bg: hsl(198 35% 5%);
  --text: #eef1ff;
  --muted: hsl(198 15% 65%);
  --accent: hsl(198 100% 62%);
  --font: "Segoe UI Variable Display", "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: radial-gradient(60% 50% at 50% 0%, hsl(198 100% 62% / 0.12), transparent 70%), var(--bg);
  color: var(--text);
  font-family: var(--font);
}
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px 16px;
  text-align: center;
}
.mark { width: 96px; height: 96px; }
h1 { margin: 0; font-size: clamp(2rem, 6vw, 3.2rem); letter-spacing: -0.02em; }
p { margin: 0; color: var(--muted); }