:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #101828;
  --muted: #667085;
  --line: #e4e7ec;
  --accent: #155eef;
  --ok: #067647;
  --warn: #b54708;
  --bad: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.6 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

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

.docs-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--line);
  background: var(--panel);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.docs-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}

.docs-brand span {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: #111827;
  color: #fff;
  font-weight: 800;
}

nav {
  display: grid;
  gap: 4px;
}

nav a,
.docs-links a {
  color: #344054;
  padding: 8px 10px;
  border-radius: 8px;
}

nav a:hover,
.docs-links a:hover {
  background: #eff4ff;
  color: #1849a9;
}

.docs-links {
  margin-top: auto;
  display: grid;
  gap: 4px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.docs-main {
  width: min(1060px, 100%);
  padding: 44px 36px 80px;
}

.doc-hero,
.doc-section {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 10px;
  padding: 28px;
  margin-bottom: 18px;
}

.doc-hero {
  background: linear-gradient(180deg, #fff, #f4f7ff);
}

.doc-kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 12px;
}

h1 {
  font-size: 42px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 17px;
}

p {
  color: var(--muted);
  margin: 0 0 14px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button {
  min-height: 38px;
  border: 1px solid #c7d7fe;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  background: #eff4ff;
  color: #1849a9;
  font-weight: 700;
}

.button.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.concept-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.concept-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fbfcfd;
}

table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

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

tr:last-child td {
  border-bottom: 0;
}

th {
  background: #fbfcfd;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

code {
  background: #f2f4f7;
  border-radius: 5px;
  padding: 2px 5px;
}

pre {
  overflow: auto;
  background: #111827;
  color: #f9fafb;
  border-radius: 8px;
  padding: 16px;
}

pre code {
  background: transparent;
  padding: 0;
}

.ok,
.partial,
.missing {
  font-weight: 800;
}

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

.partial {
  color: var(--warn);
}

.missing {
  color: var(--bad);
}

@media (max-width: 860px) {
  body {
    grid-template-columns: 1fr;
  }

  .docs-sidebar {
    position: static;
    height: auto;
  }

  .docs-main {
    padding: 18px;
  }

  .concept-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 32px;
  }
}