/* ============================================================
   layout.css  —  Page grid, sidebar, and main content area.
   The two-column layout used by every docs page.
   ============================================================ */

html {
  scroll-padding-top: 40px;
}

/* --- Page Shell --- */

.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.docs-layout--standalone {
  grid-template-columns: minmax(0, 1fr);
}

/* --- Sidebar --- */

.docs-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  border-right: 1px solid var(--vui-border-subtle);
  padding: var(--vui-space-lg) 0;
  background: var(--vui-bg);
}

.docs-sidebar-brand {
  display: block;
  padding: 0 var(--vui-space-lg) var(--vui-space-lg);
  font-size: var(--vui-font-size-lg);
  font-weight: 700;
  color: var(--vui-fg);
  text-decoration: none;
  border-bottom: 1px solid var(--vui-border-subtle);
  margin-bottom: var(--vui-space-md);
}

.docs-nav-label {
  padding: var(--vui-space-xs) var(--vui-space-lg);
  font-size: var(--vui-font-size-xs);
  font-weight: 600;
  color: var(--vui-fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.docs-nav-link {
  display: block;
  padding: var(--vui-space-xs) var(--vui-space-lg);
  font-size: var(--vui-font-size-sm);
  color: var(--vui-fg-muted);
  text-decoration: none;
  transition: color var(--vui-duration) var(--vui-easing),
              background var(--vui-duration) var(--vui-easing);
}

.docs-nav-link:hover {
  color: var(--vui-fg);
  background: var(--vui-bg-surface);
}

.docs-nav-link[aria-current="page"] {
  color: var(--vui-fg);
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.04), rgba(15, 23, 42, 0.08));
  box-shadow: inset 3px 0 0 var(--vui-accent);
}

/* --- Main Content Area --- */

.docs-main {
  padding: var(--vui-space-xl);
  max-width: 1200px;
  margin-inline: auto;
}