:root {
  color-scheme: light;
  --ink: #18352b;
  --paper: #f4f7f4;
  --green: #216652;
  --muted: #50655c;
  --line: #d8e4dd;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.8; }
header { background: #fff; border-bottom: 1px solid var(--line); }
header .wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding-block: .85rem; }
.wrap { width: min(100% - 2rem, 45rem); margin-inline: auto; }
.brand { font-weight: 850; letter-spacing: .17em; color: var(--ink); text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .4rem 1rem; font-size: .875rem; }
a { color: var(--green); text-underline-offset: .18em; }
a:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
nav a[aria-current="page"] { font-weight: 700; text-decoration-thickness: 2px; }
main { padding-block: clamp(1.75rem, 5vw, 4rem) 2rem; }
h1 { font-size: clamp(1.65rem, 5vw, 2.55rem); line-height: 1.25; margin: 0 0 1.5rem; }
section { background: #fff; border: 1px solid var(--line); border-radius: 1.15rem; padding: clamp(1rem, 4vw, 1.55rem); margin-block: 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 .5rem; }
p { margin: .55rem 0 0; overflow-wrap: anywhere; }
footer { color: var(--muted); font-size: .875rem; padding: 0 0 2rem; }