:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #5d6570;
  --border: #e3e6ea;
  --accent: #0066cc;
  --accent-hover: #0052a3;
  --accent-soft: rgba(0, 102, 204, 0.1);
  --code-bg: #1e1e1e;
  --code-text: #d4d4d4;
  --inline-code-bg: #eef1f4;
  --warn-bg: #fff3cd;
  --warn-border: #f0c14b;
  --warn-text: #664d03;
  --danger: #dc3545;
  --danger-hover: #c82333;
  --secondary: #e5e5e5;
  --secondary-hover: #d5d5d5;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216;
    --surface: #171b21;
    --text: #e6e9ed;
    --muted: #9aa3ad;
    --border: #2a3038;
    --accent: #4c9dff;
    --accent-hover: #74b3ff;
    --accent-soft: rgba(76, 157, 255, 0.15);
    --code-bg: #0b0d10;
    --inline-code-bg: #232a33;
    --warn-bg: #2e2610;
    --warn-border: #7a6320;
    --warn-text: #f2d98a;
    --secondary: #2a3038;
    --secondary-hover: #353c46;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0f1216;
  --surface: #171b21;
  --text: #e6e9ed;
  --muted: #9aa3ad;
  --border: #2a3038;
  --accent: #4c9dff;
  --accent-hover: #74b3ff;
  --accent-soft: rgba(76, 157, 255, 0.15);
  --code-bg: #0b0d10;
  --inline-code-bg: #232a33;
  --warn-bg: #2e2610;
  --warn-border: #7a6320;
  --warn-text: #f2d98a;
  --secondary: #2a3038;
  --secondary-hover: #353c46;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
}

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

.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.site-nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
}

.site-nav .brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  margin-right: auto;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav ul a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
}

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

.site-nav ul a[aria-current="page"] {
  color: var(--accent);
  font-weight: 600;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.doc {
  max-width: 760px;
}

h1 {
  font-size: 32px;
  line-height: 1.2;
  margin: 0 0 8px;
}

h2 {
  font-size: 22px;
  margin: 40px 0 12px;
  padding-top: 8px;
}

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

.lead {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 24px;
}

code {
  font-family: "SF Mono", Monaco, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--inline-code-bg);
  padding: 1px 5px;
  border-radius: 4px;
}

pre {
  background: var(--code-bg);
  color: var(--code-text);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.5;
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 12px 0 20px;
  display: block;
  overflow-x: auto;
}

th,
td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

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

.callout {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  color: var(--warn-text);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 16px 0;
  font-size: 15px;
}

.callout code {
  background: rgba(0, 0, 0, 0.06);
}

.flow {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 16px 0;
  display: grid;
  gap: 8px;
}

.flow li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px 12px 52px;
  position: relative;
}

.flow li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 12px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tldr {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  padding: 4px 20px 8px;
  margin: 24px 0;
}

.tldr h2 {
  margin-top: 12px;
  padding-top: 0;
}

.tldr h3 {
  margin: 8px 0 0;
  font-size: 15px;
}

.tldr ul {
  padding-left: 20px;
  margin: 8px 0;
}

.tldr-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0 24px;
}

figure {
  margin: 20px 0;
}

figure img {
  display: block;
  max-width: 480px;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

figcaption {
  font-size: 14px;
  color: var(--muted);
  margin-top: 8px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-decoration: none;
  color: var(--text);
}

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

.card strong {
  display: block;
  color: var(--accent);
  margin-bottom: 4px;
}

.card span {
  color: var(--muted);
  font-size: 14px;
}