:root { color-scheme: light; --ink: #182622; --muted: #51605a; --paper: #f7f8f5;
  --card: #fff; --line: #d4ddd5; --accent: #146c4f; --accent-dark: #0c4d37;
  --warning: #875900; --focus: #2a65d9; }
* { box-sizing: border-box; }
body { background: var(--paper); color: var(--ink); font: 16px/1.5 system-ui, sans-serif;
  margin: 0; }
a { color: var(--accent-dark); }
a:focus, button:focus, input:focus, select:focus { outline: 3px solid var(--focus); outline-offset: 3px; }
header { background: var(--ink); color: white; padding: 1rem max(1rem, calc((100% - 72rem) / 2)); }
header a { color: white; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .45rem 1rem; margin-top: .7rem; }
main { max-width: 72rem; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
.kicker { color: var(--muted); font-weight: 650; margin: 0; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, form { background: var(--card); border: 1px solid var(--line); border-radius: .75rem; padding: 1.25rem; }
.card h2 { margin-top: 0; font-size: 1.2rem; }
.notice { border-left: .35rem solid var(--warning); background: #fff9e8; padding: .8rem 1rem; }
button { background: var(--accent); border: 0; border-radius: .45rem; color: white; cursor: pointer; font: inherit; padding: .65rem 1rem; }
label { display: block; font-weight: 650; margin-top: .75rem; }
input, select { border: 1px solid var(--line); border-radius: .35rem; font: inherit; padding: .55rem; width: 100%; }
@media (max-width: 44rem) { .grid { grid-template-columns: 1fr; } nav { display: grid; grid-template-columns: 1fr 1fr; } }