:root {
  --bg: #ffffff;
  --surface: #f7f7f8;
  --text: #0b0b0f;
  --muted: #6b6b76;
  --border: #e7e7ea;
  --accent: #208aef;
  --maxw: 760px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
    Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 20px 96px;
}

header.site {
  border-bottom: 1px solid var(--border);
}

header.site .wrap {
  padding-top: 24px;
  padding-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  color: var(--text);
}

.brand .logo {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: block;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  margin-left: 18px;
}

nav a:hover,
nav a.active {
  color: var(--text);
}

h1 {
  font-size: 32px;
  line-height: 1.2;
  margin: 8px 0 4px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 21px;
  margin: 40px 0 8px;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 17px;
  margin: 24px 0 4px;
}

p,
li {
  color: #1d1d22;
}

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

.muted {
  color: var(--muted);
}

.updated {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 8px;
}

.lede {
  font-size: 18px;
  color: #2a2a31;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0;
  font-size: 15px;
}

th,
td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
  font-weight: 600;
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 20px 0;
  font-size: 15.5px;
}

.callout strong {
  color: var(--text);
}

ul {
  padding-left: 22px;
}

li {
  margin: 4px 0;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

footer.site {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

footer.site .wrap {
  padding-top: 24px;
  padding-bottom: 40px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

footer.site a {
  color: var(--muted);
  text-decoration: none;
}

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

.cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
}

.card h3 {
  margin: 0 0 4px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

@media (max-width: 560px) {
  .cards {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 27px;
  }
  body {
    font-size: 16px;
  }
}