:root {
  color-scheme: dark;
  --bg: #0f1419;
  --panel: #151b22;
  --text: #e8edf2;
  --muted: #9aa7b2;
  --accent: #68d391;
  --line: #2a343f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, #17212b 0, transparent 38%),
    var(--bg);
  color: var(--text);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.7;
}

main {
  width: min(720px, calc(100% - 48px));
  margin: 0 auto;
  padding: 120px 0 80px;
}

h1 {
  margin: 0 0 24px;
  font-size: clamp(2.8rem, 8vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

h1::after {
  content: ".";
  color: var(--accent);
}

p {
  margin: 0 0 1.2em;
  color: var(--muted);
  font-size: 1.05rem;
}

p:first-of-type {
  color: var(--text);
  font-size: 1.3rem;
}

hr {
  margin: 48px 0;
  border: 0;
  border-top: 1px solid var(--line);
}