:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --surface: #f6f6f8;
  --text: #16161a;
  --text-secondary: #55555f;
  --text-tertiary: #85858f;
  --accent: #5b6cf0;
  --border: #e4e4ea;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e11;
    --surface: #17171c;
    --text: #f2f2f5;
    --text-secondary: #a8a8b3;
    --text-tertiary: #74747f;
    --accent: #7c8bff;
    --border: #26262e;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 20px 80px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
}

header {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 12px;
}

h1 {
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.updated {
  color: var(--text-tertiary);
  font-size: 15px;
  margin: 0;
}

h2 {
  font-size: 21px;
  letter-spacing: -0.01em;
  margin: 40px 0 10px;
}

p {
  color: var(--text-secondary);
  margin: 0 0 14px;
  font-size: 17px;
}

.summary {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  margin-bottom: 8px;
}

.summary h2 {
  margin-top: 0;
}

a {
  color: var(--accent);
}

nav {
  display: flex;
  gap: 20px;
  padding: 24px 0 0;
  font-size: 16px;
}

footer {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 15px;
}