:root {
  color-scheme: light;
  --ink: #21183f;
  --muted: #625b76;
  --paper: #fffdf9;
  --card: #ffffff;
  --accent: #6e4bed;
  --line: #e8e1f3;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #f0eaff 0, var(--paper) 320px);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: #4f32bc; }
header, main, footer { width: min(760px, calc(100% - 36px)); margin: 0 auto; }
header { padding: 42px 0 26px; }
.brand { font-size: 30px; font-weight: 850; letter-spacing: -0.03em; text-decoration: none; color: var(--ink); }
nav { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 12px; }
nav a { font-weight: 650; }
main { background: var(--card); border: 1px solid var(--line); border-radius: 24px; padding: clamp(24px, 5vw, 48px); box-shadow: 0 18px 50px rgba(50, 35, 94, 0.08); }
h1 { margin: 0 0 8px; font-size: clamp(34px, 7vw, 54px); line-height: 1.08; letter-spacing: -0.045em; }
h2 { margin: 2rem 0 0.5rem; font-size: 1.35rem; line-height: 1.25; }
h3 { margin: 1.35rem 0 0.35rem; font-size: 1rem; }
p, ul { margin: 0.55rem 0; }
.lede, .updated { color: var(--muted); }
.callout { margin: 1.5rem 0; padding: 16px 18px; border-radius: 14px; background: #f5f1ff; border: 1px solid #ded3ff; }
footer { padding: 28px 0 48px; color: var(--muted); font-size: 14px; }