:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: #17201d;
  background: #f5f7f5;
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.6; }
a { color: #116149; }
header, main, footer { width: min(760px, calc(100% - 40px)); margin: 0 auto; }
header { padding: 48px 0 24px; border-bottom: 1px solid #d8dfdb; }
main { padding: 32px 0 56px; }
footer { padding: 24px 0 48px; border-top: 1px solid #d8dfdb; color: #50605a; }
nav { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
h1 { margin: 12px 0; font-size: clamp(2rem, 6vw, 3.5rem); line-height: 1.1; }
h2 { margin-top: 2.2rem; line-height: 1.25; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.brand img { width: 38px; height: 38px; }
.notice { padding: 16px 18px; border-left: 4px solid #168263; background: #e8f2ee; }
.muted { color: #50605a; }
ul, ol { padding-left: 1.3rem; }