/*
 * nebula-docs.css: the docs shell and the gallery's notebook cards.
 *
 * Split out because docs is the one part of the redesign that also loads
 * main.css (its article body is Tailwind `prose`), so keeping its rules apart
 * makes it obvious which stylesheet owns what.
 */

/* ------------------------------------------------------------------- docs */

/* Everything here is the shell around the prose: sidebar, heading block and
   the search bar's colours. The article body itself is still Tailwind. */
.nb-docs { display: grid; grid-template-columns: 250px 1fr; gap: 64px; align-items: start; padding: 56px 0 88px; }
.nb-docs-side { position: sticky; top: 88px; }
.nb-docs-eyebrow, .nb-docs-group { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--nb-ink-3); margin: 0 0 10px; }
.nb-docs-group { margin: 24px 0 4px; padding-left: 16px; }
.nb-docs-group:first-child { margin-top: 0; }
.nb-docs-side nav { display: grid; border-left: 1px solid var(--nb-line); }
.nb-docs-side nav a,
.nb-docs-mobile nav a {
  padding: 8px 0 8px 16px; margin-left: -1px; font-size: 15px;
  color: var(--nb-ink-2); text-decoration: none; border-left: 2px solid transparent;
}
.nb-docs-side nav a:hover, .nb-docs-mobile nav a:hover { color: var(--nb-ink); }
.nb-docs-side nav a[aria-current='page'],
.nb-docs-mobile nav a[aria-current='page'] { color: var(--nb-brand); font-weight: 500; border-left-color: var(--nb-brand); }

.nb-docs-mobile { display: none; margin-bottom: 32px; }
.nb-docs-mobile button { background: none; border: 0; padding: 0; font: inherit; font-size: 15px; color: var(--nb-ink-2); cursor: pointer; }
.nb-docs-mobile button::before { content: '\2261'; margin-right: 8px; }
.nb-docs-mobile nav { display: grid; margin-top: 14px; border-left: 1px solid var(--nb-line); }
.nb-docs-mobile nav.hidden { display: none; }

.nb-docs-main { max-width: 720px; min-width: 0; }
.nb-docs-head { margin-bottom: 40px; }
.nb-docs-head h1 { font-family: var(--nb-serif); font-weight: 400; font-size: clamp(34px, 4.4vw, 48px); line-height: 1.08; letter-spacing: -.02em; margin: 0; }
.nb-docs-head p { margin: 16px 0 0; font-size: 20px; line-height: 1.5; color: var(--nb-ink-2); }

/* The search bar ships its own .ds-* rules in main.css; these only retint it. */
.nb-docs-main .ds-input { border-color: var(--nb-line); background: var(--nb-card); color: var(--nb-ink); }
.nb-docs-main .ds-panel { border-color: var(--nb-line); background: var(--nb-card); }

.nb-prose { color: var(--nb-ink-2); }
.nb-prose :where(h2, h3, h4) { font-family: var(--nb-serif); font-weight: 400; letter-spacing: -.01em; color: var(--nb-ink); }
.nb-prose :where(a) { color: var(--nb-brand); }
.nb-prose :where(code) { color: var(--nb-ink); }

/* ---------------------------------------------------------------- gallery */

.nb-nbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.nb-nb {
  display: block; text-decoration: none; color: inherit;
  background: var(--nb-card); border: 1px solid var(--nb-line);
  border-radius: 14px; padding: 22px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.nb-nb:hover { transform: translateY(-3px); box-shadow: 0 20px 40px -24px rgba(40, 30, 90, .35); }
.nb-nb-tag { display: block; font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--nb-ink-3); margin-bottom: 10px; }
.nb-nb b { display: block; font-family: var(--nb-serif); font-weight: 400; font-size: 22px; line-height: 1.2; }
.nb-nb b::after { content: ' \2192'; color: var(--nb-brand); }
.nb-nb span { display: block; color: var(--nb-ink-2); font-size: 14px; margin-top: 8px; }

/* -------------------------------------------------------------- responsive */

@media (max-width: 1000px) {
  .nb-docs { grid-template-columns: 1fr; gap: 0; padding-top: 40px; }
  .nb-docs-side { display: none; }
  .nb-docs-mobile { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  .nb-nb { transition: none; }
}