:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #172033;
  background: #f4f7fb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 32px 16px;
}

main {
  width: min(820px, 100%);
  margin: 0 auto;
  padding: 36px;
  background: #fff;
  border: 1px solid #dce4ef;
  border-radius: 18px;
  box-shadow: 0 14px 36px rgb(31 55 91 / 8%);
}

h1, h2 { line-height: 1.2; }
h1 { margin: 0 0 12px; font-size: clamp(2rem, 5vw, 3rem); }
h2 { margin: 28px 0 10px; font-size: 1.2rem; }
p, li { line-height: 1.65; }
.lead { margin-top: 0; font-size: 1.15rem; color: #46546a; }
.meta { color: #66758c; }
code { padding: 2px 6px; border-radius: 5px; background: #edf2f8; }
nav { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-top: 32px; padding-top: 20px; border-top: 1px solid #e3e9f1; }
a { color: #1558d6; }

@media (max-width: 600px) {
  body { padding: 0; }
  main { padding: 24px 18px; border: 0; border-radius: 0; box-shadow: none; }
}