:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #5a5a5a;
  --border: #e2e2e2;
  --accent: #a33;
  --accent-bg: #fdf2f2;
  --code-bg: #f4f4f4;
  --nav-bg: #111;
  --nav-text: #eee;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

nav {
  background: var(--nav-bg);
  color: var(--nav-text);
  padding: 1rem 1.5rem;
}

nav .nav-inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1.25rem;
}

nav .brand {
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  font-size: 1.05rem;
}

nav a {
  color: #ccc;
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover,
nav a.active {
  color: #fff;
  text-decoration: underline;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

h1 {
  font-size: 1.9rem;
  margin: 0 0 0.3rem;
}

h2 {
  font-size: 1.35rem;
  margin: 2.2rem 0 0.8rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

h2:first-of-type {
  border-top: none;
  padding-top: 0;
}

p.lede {
  color: var(--muted);
  font-size: 1.1rem;
  margin-top: 0.4rem;
}

p, ul, ol {
  margin: 0.8rem 0;
}

ul, ol {
  padding-left: 1.4rem;
}

li {
  margin: 0.35rem 0;
}

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--code-bg);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

.callout {
  background: var(--accent-bg);
  border-left: 3px solid var(--accent);
  padding: 0.9rem 1.1rem;
  border-radius: 0 6px 6px 0;
  margin: 1.2rem 0;
}

.callout p {
  margin: 0;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin: 1.6rem 0 0.4rem;
}

.faq-item p {
  margin-top: 0.3rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

th, td {
  text-align: left;
  padding: 0.5rem 0.7rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

th {
  color: var(--muted);
  font-weight: 600;
}

footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111;
    --text: #eee;
    --muted: #999;
    --border: #2a2a2a;
    --accent: #e07878;
    --accent-bg: #2a1a1a;
    --code-bg: #1c1c1c;
    --nav-bg: #000;
  }
}