:root {
  color-scheme: light;
  --ink: #20231f;
  --muted: #62675f;
  --paper: #f7f6f1;
  --card: #ffffff;
  --accent: #385a36;
  --accent-light: #e2eddf;
  --line: #d9ddd4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
}

a { color: var(--accent); }
a:focus-visible { outline: 3px solid #1a73e8; outline-offset: 3px; }

.site-header, main, .site-footer {
  width: min(100% - 2rem, 46rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
}

.brand {
  color: var(--ink);
  font-size: 1.125rem;
  font-weight: 750;
  text-decoration: none;
}

nav { display: flex; flex-wrap: wrap; gap: .7rem 1rem; }
nav a { font-size: .9375rem; }

main { padding-block: 2.5rem 3.5rem; }

h1, h2 { line-height: 1.2; }
h1 { margin: 0 0 1rem; font-size: clamp(2rem, 6vw, 3.25rem); }
h2 { margin-top: 2.25rem; font-size: 1.3rem; }

.lede { max-width: 38rem; color: var(--muted); font-size: 1.15rem; }
.card {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.card h2 { margin-top: 0; }
.notice { padding: 1rem 1.25rem; background: var(--accent-light); border-left: 4px solid var(--accent); }
.meta { color: var(--muted); font-size: .9375rem; }
li + li { margin-top: .45rem; }

.site-footer { padding-block: 1.5rem 2.5rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .875rem; }

@media (max-width: 35rem) {
  .site-header { align-items: flex-start; flex-direction: column; }
}