:root {
  color-scheme: light;
  --bg: #f7f7fb;
  --surface: #ffffff;
  --text: #20212a;
  --muted: #606270;
  --accent: #7c2d62;
  --border: #e5e5ed;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

main, header, footer { max-width: 880px; margin: 0 auto; padding: 0 22px; }
header { padding-top: 42px; padding-bottom: 20px; }
main { padding-bottom: 48px; }
footer { border-top: 1px solid var(--border); padding-top: 20px; padding-bottom: 36px; color: var(--muted); font-size: 14px; }

h1, h2, h3 { line-height: 1.25; }
h1 { margin-bottom: 8px; }
h2 { margin-top: 34px; color: var(--accent); }
h3 { margin-top: 24px; }
a { color: var(--accent); }
.meta, .muted { color: var(--muted); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px; margin: 18px 0; }
.nav { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 18px; }
.nav a { text-decoration: none; font-weight: 600; }
li { margin: 7px 0; }
code { background: #efeff5; border-radius: 4px; padding: 2px 5px; }
.placeholder { color: #8b1e3f; font-weight: 650; }