:root {
  --green: #11602d;
  --deep: #0a3d1c;
  --yellow: #facd05;
  --cream: #f7edda;
  --paper: #fffcf4;
  --ink: #17150f;
  --soft: #5c554a;
  --line: #e7dcc4;
}

* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header, main, footer { width: min(760px, calc(100% - 36px)); margin-inline: auto; }
header { padding: 48px 0 24px; border-bottom: 2px solid var(--green); }
main { padding: 24px 0 64px; }
footer { padding: 24px 0 48px; border-top: 1px solid var(--line); color: var(--soft); }
h1, h2 { color: var(--deep); line-height: 1.2; }
h1 { margin: 12px 0 8px; font-size: clamp(2rem, 7vw, 3.4rem); }
h2 { margin-top: 2em; font-size: 1.35rem; }
p, li { max-width: 72ch; }
a { color: var(--green); font-weight: 650; }
a:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
.brand { color: var(--green); font-size: .85rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; text-decoration: none; }
.effective { color: var(--soft); }
.notice { padding: 16px 18px; border-left: 5px solid var(--yellow); background: var(--paper); }
nav { display: flex; flex-wrap: wrap; gap: 16px; }