:root {
  color-scheme: light dark;
  --bg: #f7f5f2;
  --text: #1a2333;
  --muted: rgba(26, 35, 51, 0.65);
  --accent: #ff5a3c;
  --card: rgba(255, 255, 255, 0.72);
  --line: rgba(26, 35, 51, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1524;
    --text: #f8f6f2;
    --muted: rgba(248, 246, 242, 0.65);
    --card: rgba(255, 255, 255, 0.06);
    --line: rgba(248, 246, 242, 0.12);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: var(--bg);
  color: var(--text);
}

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

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding-bottom: 28px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

nav a {
  text-decoration: none;
  font-weight: 600;
}

nav a[aria-current="page"] {
  color: var(--text);
  pointer-events: none;
}

.kicker {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  font-size: clamp(32px, 6vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.8px;
  margin: 0 0 16px;
}

h2 {
  margin: 32px 0 12px;
  font-size: 22px;
}

p,
li {
  margin: 0 0 14px;
}

ul {
  margin: 0 0 18px;
  padding-left: 1.25rem;
}

.card {
  margin-top: 24px;
  padding: 20px 22px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--line);
}

.muted {
  color: var(--muted);
}

code {
  font-size: 0.92em;
}