:root {
  --bg: #f8fafc;
  --text: #0f172a;
  --muted: #475569;
  --accent: #2563eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --accent: #60a5fa;
  }
}

* { box-sizing: border-box; margin: 0; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 48px 16px;
  gap: 16px;
}

.tag {
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: .85rem;
}

h1 { font-size: clamp(2.5rem, 8vw, 4.5rem); line-height: 1.05; }

.lead { color: var(--muted); font-size: 1.15rem; max-width: 32ch; }

.btn {
  margin-top: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

footer { text-align: center; padding: 24px; color: var(--muted); font-size: .9rem; }