:root {
  --bg: #fafafa;
  --fg: #16181d;
  --muted: #5c6370;
  --card: #ffffff;
  --line: #e4e6ea;
  --accent: #d6322b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1114;
    --fg: #eceef2;
    --muted: #9aa1ad;
    --card: #181b20;
    --line: #262a31;
    --accent: #ff5a4f;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: inherit; }
.wrap { max-width: 880px; margin: 0 auto; padding: 24px 16px 48px; }
.top { display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 700; font-size: 18px; text-decoration: none; }
.contact { color: var(--muted); text-decoration: none; }
.hero { padding: 72px 0 48px; }
.hero h1 { font-size: clamp(32px, 6vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; }
.lead { font-size: 19px; color: var(--muted); max-width: 640px; margin: 0 0 24px; }
.badge {
  display: inline-block; margin: 0; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--line); font-size: 14px; color: var(--accent);
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.grid article { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.grid h2 { font-size: 17px; margin: 0 0 6px; }
.grid p { margin: 0; color: var(--muted); }
.prose h1 { margin: 48px 0 4px; }
.prose h2 { font-size: 19px; margin-top: 32px; }
.muted { color: var(--muted); }
.foot { margin-top: 64px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }