:root {
  --bg: #F4F6F5;
  --surface: #FFFFFF;
  --separator: #E2E5E3;
  --text: #0D0F0E;
  --text-secondary: #6A716D;
  --accent: #127F55;
  --accent-soft: #D8F6E7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0A0B0A;
    --surface: #161817;
    --separator: #262A28;
    --text: #F2F5F3;
    --text-secondary: #9AA29D;
    --accent: #7DF0BC;
    --accent-soft: #143327;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 24px 96px;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 680px; margin: 0 auto; }

header.site {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 32px 0 40px;
}

header.site .mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  flex: none;
}

header.site .mark svg { display: block; }

header.site .name {
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 18px;
}

header.site nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
  font-size: 15px;
}

h1 {
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

h2 {
  font-size: 20px;
  letter-spacing: -0.01em;
  margin: 40px 0 12px;
}

h3 {
  font-size: 17px;
  margin: 28px 0 8px;
}

p, li { color: var(--text); }

.lede {
  font-size: 19px;
  color: var(--text-secondary);
  margin: 0 0 8px;
}

.meta {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 40px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

ul { padding-left: 22px; }
li { margin: 6px 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--separator);
  border-radius: 14px;
  padding: 20px 24px;
  margin: 24px 0;
}

.card p:first-child { margin-top: 0; }
.card p:last-child { margin-bottom: 0; }

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

th, td {
  text-align: left;
  padding: 10px 12px 10px 0;
  border-bottom: 1px solid var(--separator);
  vertical-align: top;
}

th { font-weight: 600; }

code {
  font: 15px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--accent-soft);
  color: var(--text);
  padding: 1px 6px;
  border-radius: 5px;
}

footer.site {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--separator);
  font-size: 15px;
  color: var(--text-secondary);
}