:root {
  color-scheme: light dark;
  --background: #f8faf7;
  --surface: #ffffff;
  --text: #182c25;
  --muted: #46594f;
  --accent: #1b5941;
  --border: #cedad1;
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #15211b;
    --surface: #1e2d24;
    --text: #eef6ee;
    --muted: #c2d0c6;
    --accent: #acdcbc;
    --border: #4e6456;
  }
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: system-ui, sans-serif;
  line-height: 1.7;
  font-size: 1rem;
}
header,
main,
footer {
  width: min(100% - 2.5rem, 48rem);
  margin-inline: auto;
}
header {
  padding-block: 1.8rem;
  border-bottom: 1px solid var(--border);
}
.brand {
  font-size: 1.5rem;
  font-weight: 700;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 0.8rem;
}
main {
  padding-block: 1.8rem 3rem;
}
h1,
h2 {
  line-height: 1.25;
  text-wrap: balance;
}
h1 {
  font-size: clamp(1.8rem, 6vw, 2.6rem);
}
h2 {
  margin-top: 2.4rem;
  font-size: 1.4rem;
}
a {
  color: var(--accent);
  text-underline-offset: 0.2em;
  overflow-wrap: anywhere;
}
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}
li {
  margin-block: 0.8rem;
}
.notice {
  border-left: 3px solid var(--accent);
  padding: 0.8rem 1rem;
  background: var(--surface);
  color: var(--muted);
}
footer {
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
}
.skip {
  position: absolute;
  top: -8rem;
  left: 1rem;
  padding: 0.6rem 1rem;
  background: var(--surface);
}
.skip:focus {
  top: 1rem;
}