:root {
  color-scheme: light;
  --sheet: #f3efe6;
  --ink: #1a2330;
  --muted: #5c675f;
  --line: #e3d9c8;
  --green: #1b6b4a;
  --green-deep: #14553a;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--sheet);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--sheet);
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  font-size: 1.05rem;
  line-height: 1.6;
}

a {
  color: var(--green-deep);
}

a:hover {
  color: var(--green);
}

.wrap {
  width: min(40rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.mark {
  color: var(--green-deep);
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 1rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

nav a[aria-current="page"] {
  color: var(--ink);
}

h1 {
  margin: 1.75rem 0 0.5rem;
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.updated {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

h2 {
  margin: 1.75rem 0 0.4rem;
  font-size: 1.15rem;
}

p {
  margin: 0 0 0.9rem;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}