/* The guide page (guide.html): chapters on the left, the chapter on the right. The how-to styles are in style.css (the help
   panel of each tab uses them too). */
.guide-body { min-height: 100vh; }
.guide-sub { font-weight: 500; }
#guide-search { min-width: 260px; }
.guide-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 0; max-width: 1280px; margin: 0 auto; }
.guide-nav { position: sticky; top: 0; align-self: start; max-height: 100vh; overflow-y: auto; padding: 22px 18px 40px 24px;
  border-right: 1px solid var(--border); }
.guide-nav ul { list-style: none; margin: 0; padding: 0; }
.guide-nav > ul > li { margin-bottom: 4px; }
.guide-nav a { display: block; padding: 6px 10px; border-radius: 8px; color: var(--text); text-decoration: none; font-weight: 600; font-size: 14px; }
.guide-nav a:hover { background: var(--surface-2); }
.guide-nav li.current > a { background: var(--info-bg); color: var(--info-text); }
.guide-nav li ul { display: none; margin: 2px 0 8px 10px; border-left: 2px solid var(--border); }
.guide-nav li.current ul { display: block; }
.guide-nav a.sub { font-weight: 500; font-size: 13px; color: var(--muted); padding: 4px 10px; }
.guide-main { padding: 26px 40px 60px; min-width: 0; }
.guide-chapter { max-width: 900px; }
.guide-chapter h1 { font-size: 30px; margin: 4px 0 6px; letter-spacing: -.01em; }
.g-kicker { margin: 0; font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--primary); }
.guide-chapter .g-howto { padding-top: 6px; border-top: 1px solid var(--border); }
.guide-chapter .g-howto h3 { font-size: 20px; margin-top: 14px; }
.guide-chapter .g-shot { max-width: 820px; }
.g-from { margin: 22px 0 -10px; font-size: 13px; font-weight: 600; }
.g-pager { display: flex; justify-content: space-between; margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--border); }
@media (max-width: 860px) {
  .guide-layout { grid-template-columns: 1fr; }
  .guide-nav { position: static; max-height: none; border-right: 0; border-bottom: 1px solid var(--border); padding: 12px 16px; }
  .guide-nav li ul { display: none !important; }
  .guide-nav > ul { display: flex; flex-wrap: wrap; gap: 4px; }
  .guide-main { padding: 18px 16px 50px; }
  #guide-search { min-width: 0; width: 100%; }
}