:root {
  color-scheme: light;
  --ink: #1c1917;
  --muted: #57534e;
  --line: #e7e5e4;
  --paper: #f7f6f3;
  --card: #ffffff;
  --accent: #1d4a38;
  --max: 44rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

a {
  color: var(--accent);
}

a:hover {
  text-decoration-thickness: 2px;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 2.25rem 0 4rem;
}

header.site {
  margin-bottom: 1.75rem;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 0.55rem;
  font-size: clamp(2rem, 6vw, 2.65rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

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

nav.toc {
  margin: 1.4rem 0 0.4rem;
  padding: 0.95rem 1.05rem 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

nav.toc ol {
  margin: 0.35rem 0 0;
  padding-left: 1.2rem;
}

nav.toc li {
  margin: 0.18rem 0;
}

section {
  margin: 2.15rem 0;
}

h2 {
  margin: 0 0 0.7rem;
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h3 {
  margin: 0 0 0.35rem;
  font-size: 1.08rem;
}

p,
li {
  margin: 0.55rem 0;
}

ul,
ol {
  padding-left: 1.2rem;
}

.card {
  margin: 1rem 0;
  padding: 0.95rem 1rem 0.35rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

dl {
  margin: 0.25rem 0 0.75rem;
}

dt {
  margin-top: 0.7rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

dd {
  margin: 0.12rem 0 0;
}

footer {
  margin-top: 2.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92em;
}

@media (max-width: 640px) {
  .wrap {
    width: min(100% - 1.4rem, var(--max));
    padding-top: 1.4rem;
  }

  body {
    font-size: 1rem;
  }

  nav.toc {
    padding-right: 0.75rem;
  }
}