/* AIKraft — раздел документации. Опирается на токены из tokens.css */

.docs-hero {
  padding: 44px 0 28px;
  border-bottom: 1px solid var(--border);
}
.docs-hero h1 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
}
.docs-lead {
  max-width: 720px;
  color: var(--text-2, #4b5563);
  font-size: 16px;
  line-height: 1.65;
  margin: 0 0 22px;
}
.docs-hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.docs-index {
  padding: 32px 0 64px;
}
.doc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}
.doc-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  background: var(--card, transparent);
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.doc-card:hover {
  border-color: var(--accent, #4f46e5);
  transform: translateY(-2px);
}
.doc-card h2 {
  font-size: 17px;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}
.doc-card-desc {
  font-size: 13px;
  color: var(--text-2, #4b5563);
  margin: 0 0 12px;
  line-height: 1.5;
}
.doc-card-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.doc-card-list li {
  padding: 3px 0;
  font-size: 14px;
}
.doc-card-list a {
  text-decoration: none;
  color: inherit;
}
.doc-card-list a:hover {
  color: var(--accent, #4f46e5);
}
.doc-card-list .more {
  color: var(--text-2, #4b5563);
  font-size: 12.5px;
  padding-top: 6px;
}
.doc-empty {
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 40px;
  text-align: center;
  color: var(--text-2, #4b5563);
  margin-bottom: 24px;
}

/* --- Страница документации --- */
.doc-layout {
  padding: 26px 0 70px;
}
.doc-grid {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 220px;
  gap: 34px;
  align-items: start;
}
.doc-nav {
  position: sticky;
  top: 84px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  padding-right: 8px;
}
.doc-nav-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-2, #4b5563);
  margin-bottom: 12px;
  font-weight: 600;
}
.doc-nav-group {
  margin-bottom: 4px;
}
.doc-nav-group > summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  padding: 6px 0;
  list-style: none;
  user-select: none;
}
.doc-nav-group > summary::-webkit-details-marker {
  display: none;
}
.doc-nav-group > summary::before {
  content: "▸";
  display: inline-block;
  width: 14px;
  color: var(--text-2, #4b5563);
  transition: transform 0.15s ease;
}
.doc-nav-group[open] > summary::before {
  transform: rotate(90deg);
}
.doc-nav-group ul {
  list-style: none;
  margin: 2px 0 8px;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--border);
}
.doc-nav-group li a {
  display: block;
  padding: 5px 0 5px 10px;
  font-size: 13.5px;
  color: var(--text-2, #4b5563);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -1px;
  line-height: 1.4;
}
.doc-nav-group li a:hover {
  color: var(--text, #111);
}
.doc-nav-group li a.active {
  color: var(--accent, #4f46e5);
  border-left-color: var(--accent, #4f46e5);
  font-weight: 600;
}

.doc-main {
  min-width: 0;
}
.doc-head {
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.doc-kicker {
  font-size: 12px;
  color: var(--text-2, #4b5563);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.doc-badge {
  text-transform: none;
  letter-spacing: 0;
  font-size: 11.5px;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.doc-badge.delta {
  border-color: #f59e0b;
  color: #b45309;
}
.doc-badge.own {
  border-color: var(--accent, #4f46e5);
  color: var(--accent, #4f46e5);
}
.doc-head h1 {
  font-size: clamp(25px, 3.2vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.doc-deck {
  color: var(--text-2, #4b5563);
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
}
.doc-prose {
  font-size: 15.5px;
  line-height: 1.72;
}
.doc-prose h2 {
  margin-top: 36px;
  scroll-margin-top: 90px;
}
.doc-prose h3 {
  margin-top: 26px;
  scroll-margin-top: 90px;
}

.doc-toc {
  position: sticky;
  top: 84px;
  max-height: calc(100vh - 110px);
  overflow-y: auto;
  font-size: 13px;
}
.doc-toc-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-2, #4b5563);
  font-weight: 600;
  margin-bottom: 10px;
}
.doc-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border);
}
.doc-toc li a {
  display: block;
  padding: 4px 0 4px 12px;
  color: var(--text-2, #4b5563);
  text-decoration: none;
  line-height: 1.4;
}
.doc-toc li.lvl3 a {
  padding-left: 24px;
  font-size: 12.5px;
}
.doc-toc li a:hover {
  color: var(--accent, #4f46e5);
}

.doc-prevnext {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 46px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.doc-prevnext .pn {
  display: flex;
  flex-direction: column;
  gap: 3px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  text-decoration: none;
  color: inherit;
  max-width: 48%;
  transition: border-color 0.15s ease;
}
.doc-prevnext .pn:hover {
  border-color: var(--accent, #4f46e5);
}
.doc-prevnext .pn span {
  font-size: 11.5px;
  color: var(--text-2, #4b5563);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.doc-prevnext .pn b {
  font-size: 14px;
  font-weight: 600;
}
.doc-prevnext .next {
  text-align: right;
  margin-left: auto;
}

@media (max-width: 1100px) {
  .doc-grid {
    grid-template-columns: 220px minmax(0, 1fr);
  }
  .doc-toc {
    display: none;
  }
}
@media (max-width: 780px) {
  .doc-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .doc-nav {
    position: static;
    max-height: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 14px;
    margin-bottom: 8px;
  }
  .doc-prevnext {
    flex-direction: column;
  }
  .doc-prevnext .pn {
    max-width: 100%;
  }
  .doc-prevnext .next {
    text-align: left;
  }
}