:root {
  color-scheme: light;
  --bg: #f5f8fb;
  --ink: #0d1724;
  --muted: #5f6f82;
  --line: #d8e2ec;
  --brand: #0878ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 14% 12%, rgba(8, 120, 255, 0.16), transparent 25rem),
    radial-gradient(circle at 88% 10%, rgba(70, 211, 34, 0.14), transparent 24rem),
    linear-gradient(135deg, #eef5ff 0%, var(--bg) 54%, #edf9f1 100%);
  color: var(--ink);
  padding: 18px;
}

.page {
  width: min(100%, 760px);
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(13, 23, 36, 0.1);
  padding: clamp(24px, 5vw, 44px);
}

.back {
  color: var(--brand);
  font-weight: 820;
  text-decoration: none;
}

h1 {
  font-size: clamp(2.2rem, 8vw, 4.4rem);
  line-height: 1;
  letter-spacing: 0;
  margin: 18px 0;
}

p {
  color: var(--muted);
  line-height: 1.65;
}