:root {
  --bg: #f6f8f7;
  --text: #17201c;
  --muted: #55625c;
  --tint: #1166c4;
  --card: #ffffff;
  --border: #dde3e0;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1210;
    --text: #e8ece9;
    --muted: #a3ada8;
    --tint: #6fa8ec;
    --card: #181d1a;
    --border: #2a312d;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 16px 64px;
}

h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin: 0 0 8px;
}

h2 {
  font-size: 1.25rem;
  margin: 40px 0 8px;
}

p,
li {
  max-width: 65ch;
}

ul {
  padding-left: 1.2em;
}

li + li {
  margin-top: 6px;
}

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

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
  margin: 24px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

th {
  font-weight: 600;
}

.table-wrap {
  overflow-x: auto;
}

footer {
  margin-top: 48px;
  font-size: 0.9rem;
}