:root {
  color-scheme: light;
  --ink: #18231f;
  --muted: #5d6a64;
  --line: #d9ddd3;
  --paper: #fffdf8;
  --ground: #f7f3eb;
  --accent: #17322d;
  --accent-soft: #dfe7d7;
}

* {
  box-sizing: border-box;
}

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

header,
main,
footer {
  width: min(880px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  padding: 32px 0 18px;
  border-bottom: 1px solid var(--line);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

nav a,
.button {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  background: var(--paper);
}

main {
  padding: 28px 0 42px;
}

section {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: 40px;
}

h2 {
  margin: 0 0 10px;
  font-size: 24px;
}

h3 {
  margin: 18px 0 6px;
  font-size: 18px;
}

p {
  margin: 0 0 12px;
}

ul,
ol {
  padding-left: 22px;
}

.lede {
  margin-top: 10px;
  color: var(--muted);
  font-size: 18px;
}

.notice {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--accent-soft);
}

footer {
  padding: 22px 0 34px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 560px) {
  h1 {
    font-size: 32px;
  }
}