/* ============================================================================
   Docs layout — sidebar / content / TOC
   ========================================================================= */

.docs-shell {
  padding-top: var(--nav-h);
  display: grid;
  grid-template-columns: 280px 1fr 240px;
  max-width: 1440px;
  margin: 0 auto;
  min-height: 100vh;
  position: relative;
}

/* ---- Sidebar ---- */

.docs-sidebar {
  position: sticky;
  top: var(--nav-h);
  align-self: start;
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  padding: 32px 16px 32px 24px;
  border-right: 1px solid var(--border);
}

.docs-search {
  position: relative;
  margin-bottom: 24px;
}
.docs-search input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px 10px 36px;
  color: var(--t1);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s;
}
.docs-search input:focus { border-color: var(--accent); }
.docs-search input::placeholder { color: var(--t4); }
.docs-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--t3);
  width: 14px; height: 14px;
}
.docs-search-key {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--t3);
  padding: 2px 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.docs-nav-section {
  margin-bottom: 24px;
}
.docs-nav-section-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--t3);
  padding: 0 12px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.docs-nav-section-title::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}

.docs-nav ul { display: flex; flex-direction: column; gap: 1px; }
.docs-nav a {
  display: block;
  padding: 7px 12px;
  font-size: 13.5px;
  color: var(--t2);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  border-left: 2px solid transparent;
}
.docs-nav a:hover {
  color: var(--t1);
  background: rgba(255, 255, 255, 0.03);
}
.docs-nav a.active {
  color: var(--accent-2);
  background: rgba(157, 78, 221, 0.10);
  border-left-color: var(--accent);
  font-weight: 500;
}

.docs-nav-empty {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--t4);
  font-style: italic;
}

/* ---- Main content ---- */

.docs-main {
  padding: 56px 56px 96px;
  min-width: 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--t3);
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--t3); }
.breadcrumb a:hover { color: var(--accent-2); }
.breadcrumb-sep {
  color: var(--t4);
  font-size: 11px;
}

.docs-title {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.docs-subtitle {
  font-size: 17px;
  color: var(--t2);
  margin-bottom: 40px;
  max-width: 70ch;
}

/* Prose typography */
.prose {
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--t2);
}
.prose > * + * { margin-top: 1.25em; }
.prose h2 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: 56px;
  margin-bottom: 16px;
  color: var(--t1);
  scroll-margin-top: calc(var(--nav-h) + 16px);
  position: relative;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.prose h2 .anchor,
.prose h3 .anchor,
.prose h4 .anchor {
  margin-left: 8px;
  color: var(--t4);
  opacity: 0;
  transition: opacity 0.2s;
}
.prose h2:hover .anchor,
.prose h3:hover .anchor,
.prose h4:hover .anchor { opacity: 1; }

.prose h3 {
  font-size: 21px;
  font-weight: 600;
  margin-top: 40px;
  margin-bottom: 12px;
  color: var(--t1);
  scroll-margin-top: calc(var(--nav-h) + 16px);
}
.prose h4 {
  font-size: 17px;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 8px;
  color: var(--t1);
  scroll-margin-top: calc(var(--nav-h) + 16px);
}
.prose p { margin-top: 1.25em; }
.prose strong { color: var(--t1); font-weight: 600; }
.prose a {
  color: var(--accent-2);
  border-bottom: 1px solid rgba(199, 125, 255, 0.30);
  transition: border-color 0.2s;
}
.prose a:hover { border-bottom-color: var(--accent-2); }

.prose ul, .prose ol {
  padding-left: 24px;
  margin-top: 1em;
}
.prose ul li, .prose ol li {
  position: relative;
  margin-top: 0.4em;
}
.prose ul li::before {
  content: '';
  position: absolute;
  left: -16px;
  top: 0.7em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
}
.prose ol { list-style: decimal; color: var(--t1); }
.prose ol li::marker { color: var(--accent-2); font-weight: 600; }

.prose blockquote {
  margin: 1.5em 0;
  padding: 16px 20px;
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--t2);
  font-style: italic;
}

/* Inline code */
.prose code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 2px 6px;
  background: rgba(157, 78, 221, 0.10);
  border: 1px solid rgba(157, 78, 221, 0.20);
  border-radius: 4px;
  color: var(--accent-2);
}

/* Code blocks */
.prose pre {
  position: relative;
  margin: 1.5em 0;
  padding: 18px 20px;
  background: #0a0a14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: #d4d4dc;
}
.prose pre code { color: inherit; padding: 0; background: none; border: 0; font-size: inherit; }

.code-header {
  position: relative;
  margin-top: 1.5em;
}
.code-header + pre {
  margin-top: 0;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}
.code-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-bottom: 0;
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 3px 8px;
  font-size: 10px;
  color: var(--t2);
  cursor: pointer;
  transition: all 0.15s;
}
.copy-btn:hover { border-color: var(--accent); color: var(--t1); }
.copy-btn.copied { color: #6dd49e; border-color: #6dd49e; }

/* Token colors (basic syntax highlighting) */
.tok-comment { color: #5b5b6d; font-style: italic; }
.tok-keyword { color: #c77dff; }
.tok-string  { color: #9ad9a4; }
.tok-number  { color: #ffbd6b; }
.tok-fn      { color: #5b8cff; }
.tok-prop    { color: #4cc9f0; }
.tok-punct   { color: #8a8aa0; }

/* Tables */
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.prose th, .prose td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.prose th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--t3);
  background: var(--surface-2);
}
.prose tr:last-child td { border-bottom: 0; }
.prose tr:hover td { background: rgba(157, 78, 221, 0.04); }

/* Admonitions */
.admonition {
  margin: 1.5em 0;
  padding: 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  position: relative;
  overflow: hidden;
}
.admonition::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
}
.admonition-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--accent-2);
  margin-bottom: 8px;
}
.admonition-head svg { width: 14px; height: 14px; }
.admonition.info::before { background: var(--accent-blue); }
.admonition.info .admonition-head { color: var(--accent-blue); }
.admonition.warning::before { background: #ffbd2e; }
.admonition.warning .admonition-head { color: #ffbd2e; }
.admonition.danger::before { background: #ff5f56; }
.admonition.danger .admonition-head { color: #ff5f56; }
.admonition.tip::before { background: #6dd49e; }
.admonition.tip .admonition-head { color: #6dd49e; }
.admonition p { margin-top: 0; color: var(--t2); }
.admonition p + p { margin-top: 0.75em; }

/* Page nav (prev / next) */
.page-nav {
  margin-top: 80px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.page-nav a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
}
.page-nav a:hover { border-color: var(--accent); transform: translateY(-2px); }
.page-nav a.next { text-align: right; }
.page-nav-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--t3);
}
.page-nav-title {
  font-weight: 600;
  color: var(--t1);
}

/* ---- TOC (right rail) ---- */

.docs-toc {
  position: sticky;
  top: var(--nav-h);
  align-self: start;
  height: calc(100vh - var(--nav-h));
  overflow-y: auto;
  padding: 56px 24px 32px 16px;
  font-size: 12.5px;
}
.docs-toc-title {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--t3);
  margin-bottom: 12px;
}
.docs-toc ul { display: flex; flex-direction: column; gap: 4px; }
.docs-toc a {
  display: block;
  padding: 4px 12px;
  color: var(--t3);
  border-left: 2px solid var(--border);
  transition: color 0.2s, border-color 0.2s;
}
.docs-toc a:hover { color: var(--t1); }
.docs-toc a.active {
  color: var(--accent-2);
  border-left-color: var(--accent);
}
.docs-toc .lvl-3 { padding-left: 24px; font-size: 12px; }

/* ---- Docs landing tiles ---- */

.docs-tiles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 32px 0;
}
.docs-tile {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.2s;
}
.docs-tile:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  background: var(--surface-2);
}
.docs-tile-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(157, 78, 221, 0.10);
  border: 1px solid rgba(157, 78, 221, 0.20);
  display: grid;
  place-items: center;
  color: var(--accent-2);
  flex-shrink: 0;
}
.docs-tile-icon svg { width: 18px; height: 18px; }
.docs-tile-body h4 { font-size: 15px; margin-bottom: 4px; }
.docs-tile-body p { font-size: 13px; color: var(--t3); }

/* ---- Mobile ---- */

.docs-sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--grad-primary);
  color: white;
  z-index: 50;
  box-shadow: var(--shadow-md);
  align-items: center;
  justify-content: center;
}

@media (max-width: 1100px) {
  .docs-shell { grid-template-columns: 280px 1fr; }
  .docs-toc { display: none; }
}

@media (max-width: 800px) {
  .docs-shell { grid-template-columns: 1fr; }
  .docs-sidebar {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    width: 280px;
    background: var(--bg);
    z-index: 40;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    border-right: 1px solid var(--border);
  }
  .docs-sidebar.open { transform: translateX(0); }
  .docs-sidebar-toggle { display: grid; }
  .docs-main { padding: 32px 20px 80px; }
}