:root {
  color-scheme: light;
  --background: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #cbd5e1;
  --link: #1d4ed8;
  --focus: #2563eb;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

body {
  margin: 0;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:focus-visible {
  border-radius: 6px;
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.site-header,
.site-footer,
main {
  margin: 0 auto;
  max-width: 868px;
  padding-inline: 24px;
}

.site-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 84px;
}

.brand {
  display: block;
  height: 32px;
  width: 32px;
}

.brand img {
  display: block;
  height: 100%;
  width: 100%;
}

.site-nav {
  display: flex;
  gap: 20px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.94rem;
}

.document {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 18px 48px rgb(15 23 42 / 7%);
  padding: 48px;
}

h1,
h2 {
  line-height: 1.15;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  letter-spacing: -0.04em;
  margin-bottom: 20px;
}

h2 {
  font-size: 1.28rem;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
  margin-top: 36px;
}

p,
li {
  max-width: 72ch;
}

.lede {
  color: var(--muted);
  font-size: 1.16rem;
}

.meta {
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

ul {
  padding-left: 1.35rem;
}

.site-footer {
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.9rem;
  gap: 12px 20px;
  padding-bottom: 44px;
  padding-top: 28px;
}

.site-footer a {
  color: var(--muted);
}

@media (max-width: 560px) {
  .site-header {
    min-height: 72px;
  }

  .document {
    padding: 30px 22px;
  }
}