/* Docs system — x.ai / SpaceXAI-docs style */
.docs-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 0;
  min-height: calc(100vh - 104px);
  background: #fff;
}
.docs-side {
  border-right: 1px solid var(--line);
  background: #fbfcfe;
  padding: 1.25rem 0 2.5rem;
  position: sticky;
  top: 104px;
  height: calc(100vh - 104px);
  overflow: auto;
}
.docs-side .group {
  margin: 0 0 1.1rem;
  padding: 0 .9rem;
}
.docs-side .group-title {
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #8b939e;
  margin: 0 0 .45rem .55rem;
}
.docs-side a {
  display: block;
  padding: .42rem .65rem;
  border-radius: 8px;
  color: var(--text);
  text-decoration: none !important;
  font-size: .9rem;
  font-weight: 500;
  line-height: 1.35;
}
.docs-side a:hover { background: var(--brand-soft); color: var(--brand-deep); }
.docs-side a.active {
  background: var(--brand-soft);
  color: var(--brand-deep);
  font-weight: 700;
}
.docs-main {
  padding: 1.75rem 2rem 4rem;
  max-width: 920px;
}
.docs-crumb {
  font-size: .82rem;
  color: var(--muted);
  margin: 0 0 1rem;
}
.docs-crumb a { color: var(--muted); text-decoration: none; }
.docs-crumb a:hover { color: var(--brand-deep); }
.docs-article h1 {
  margin: 0 0 .6rem;
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  letter-spacing: -.025em;
  line-height: 1.2;
}
.docs-article .lead {
  color: var(--muted);
  font-size: 1.08rem;
  margin: 0 0 1.4rem;
  max-width: 46rem;
}
.docs-article h2 {
  margin: 2rem 0 .7rem;
  font-size: 1.28rem;
  letter-spacing: -.015em;
  padding-top: .4rem;
  border-top: 1px solid var(--line);
}
.docs-article h2:first-of-type { border-top: 0; padding-top: 0; }
.docs-article h3 {
  margin: 1.35rem 0 .45rem;
  font-size: 1.05rem;
}
.docs-article p, .docs-article li {
  color: #3d4450;
  font-size: .97rem;
  line-height: 1.7;
}
.docs-article ul, .docs-article ol { padding-left: 1.25rem; }
.docs-article li { margin: .35rem 0; }
.docs-article strong { color: var(--text); }
.docs-article code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .86em;
  background: #f1f4f9;
  padding: .12em .4em;
  border-radius: 6px;
}
.docs-article pre {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 12px;
  padding: 1rem 1.1rem;
  overflow: auto;
  font-size: .84rem;
  line-height: 1.55;
  border: 1px solid #1e293b;
}
.docs-article pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.docs-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  margin: .8rem 0 1.2rem;
}
.docs-article th, .docs-article td {
  text-align: left;
  padding: .7rem .8rem;
  border: 1px solid var(--line);
  vertical-align: top;
}
.docs-article th {
  background: #f6f8fb;
  color: var(--muted);
  font-weight: 650;
}
.docs-callout {
  border: 1px solid #c7d7ff;
  background: linear-gradient(180deg, #f5f8ff, #eef3ff);
  border-radius: 12px;
  padding: .9rem 1.05rem;
  margin: 1rem 0 1.3rem;
  color: #1e3a5f;
  font-size: .94rem;
}
.docs-callout.warn {
  border-color: #f0d4a8;
  background: #fff8eb;
  color: #6b4500;
}
.docs-callout strong { color: inherit; }
.docs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .85rem;
  margin: 1rem 0 1.4rem;
}
.docs-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.05rem;
  background: #fff;
  text-decoration: none !important;
  color: inherit;
  display: block;
  transition: .15s ease;
}
.docs-card:hover {
  border-color: #c7d2fe;
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}
.docs-card h3 {
  margin: 0 0 .35rem;
  font-size: 1rem;
  color: var(--brand-deep);
}
.docs-card p {
  margin: 0;
  color: var(--muted);
  font-size: .9rem;
}
.docs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0 0 1.2rem;
}
.docs-meta span {
  font-size: .75rem;
  font-weight: 700;
  padding: .22rem .55rem;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-deep);
}
.docs-pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}
.docs-pager a {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .85rem 1rem;
  text-decoration: none !important;
  color: var(--text);
  min-width: 42%;
  background: #fff;
}
.docs-pager a:hover { border-color: #c7d2fe; background: var(--brand-tint); }
.docs-pager .dir {
  display: block;
  font-size: .75rem;
  color: var(--muted);
  margin-bottom: .2rem;
}
.docs-mobile-nav {
  display: none;
  margin: 0 0 1rem;
}
.docs-mobile-nav select {
  width: 100%;
  padding: .65rem .8rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  font: inherit;
  background: #fff;
}
@media (max-width: 900px) {
  .docs-layout { grid-template-columns: 1fr; }
  .docs-side { display: none; }
  .docs-mobile-nav { display: block; }
  .docs-main { padding: 1.2rem 1.1rem 3rem; }
  .docs-grid { grid-template-columns: 1fr; }
  .docs-pager { flex-direction: column; }
  .docs-pager a { min-width: 0; }
}