/* guide.css — buying guides: signed header, product grid on top (owner
   rule: guides are integrated with the products they discuss), reading
   column, sticky TOC. */

body.guide main .wrap { max-width: var(--guide-max); }
body.guide h1 { font-size: 48px; margin: 0 0 12px; }

/* ---- Wide guide shell: 760px prose + useful contextual rail ---- */
.guide-shell {
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(280px, 340px);
  gap: clamp(40px, 4vw, 64px);
  justify-content: center;
  align-items: start;
}
.guide-body { min-width: 0; font-size: 17px; }
.guide-body h2 { font-size: 30px; margin: 44px 0 14px; scroll-margin-top: 80px; }
.guide-body h3 { font-size: 21px; margin: 30px 0 10px; }

.guide-utility {
  min-width: 0;
  position: sticky;
  top: 84px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-height: calc(100vh - 104px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}
.guide-products--rail {
  margin: 0;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
}
.guide-products--rail h2 { font-size: 18px; line-height: 1.2; margin: 0 0 12px; }
.guide-products--rail .gp-grid { display: grid; grid-template-columns: 1fr; gap: 9px; }
.guide-products--rail .gp-card {
  padding: 8px;
  background: var(--surface-2);
  border: 1px solid var(--hairline-soft);
  border-radius: 12px;
  transition: border-color var(--t-fast) ease-out, background var(--t-fast) ease-out;
}
.guide-products--rail .gp-card:hover { border-color: var(--brand); background: var(--surface); }
.guide-products--rail .gp-card-main {
  display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: 10px;
  align-items: center; color: inherit; text-decoration: none;
}
.guide-products--rail .gp-card-main:hover { text-decoration: none; }
.guide-products--rail .gp-card-main:hover .gp-name { text-decoration: underline; text-underline-offset: 2px; }
.guide-products--rail .gp-card .img-std { width: 68px; height: 68px; margin: 0; }
.guide-products--rail .gp-card .img-std img { width: 100%; height: 100%; object-fit: contain; }
.guide-products--rail .gp-name { min-width: 0; font-size: 13.5px; font-weight: 600; line-height: 1.3; }
.guide-products--rail .gp-meta {
  min-width: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 3px 0;
  padding-left: 78px; margin-top: 4px; font-family: var(--font-mono);
  font-variant-numeric: tabular-nums; font-size: 11.5px; color: var(--muted);
}
.guide-products--rail .gp-rating::before { content: " · "; margin: 0 4px; }
.guide-products--rail .gp-note { font-size: 11.5px; line-height: 1.4; color: var(--muted); margin: 10px 0 0; }

.guide-toc {
  position: static;
  border-left: 2px solid var(--hairline);
  padding-left: 18px;
  font-size: 13.5px;
}
.guide-toc .toc-title { font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.guide-toc ul { list-style: none; margin: 0; padding: 0; }
.guide-toc li { margin: 0 0 7px; }
.guide-toc a { color: var(--ink-soft); }
.guide-toc a:hover { color: var(--brand); }

@media (max-width: 1100px) {
  .guide-shell { grid-template-columns: 1fr; gap: 28px; }
  .guide-utility { position: static; max-height: none; overflow: visible; order: -1; }
  .guide-products--rail .gp-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .guide-products--rail .gp-card-main { grid-template-columns: 56px minmax(0, 1fr); }
  .guide-products--rail .gp-card .img-std { width: 56px; height: 56px; }
  .guide-products--rail .gp-meta { padding-left: 66px; }
}
@media (max-width: 768px) {
  body.guide h1 { font-size: 32px; }
  .guide-products--rail { padding: 12px; }
  .guide-products--rail .gp-grid { display: flex; overflow-x: auto; gap: 10px; scrollbar-width: none; }
  .guide-products--rail .gp-grid::-webkit-scrollbar { display: none; }
  .guide-products--rail .gp-card { flex: 0 0 min(78vw, 280px); }
  .guide-products--rail .gp-card-main { grid-template-columns: 64px minmax(0, 1fr); }
  .guide-products--rail .gp-card .img-std { width: 64px; height: 64px; }
  .guide-products--rail .gp-meta { padding-left: 74px; }
  .guide-toc {
    border-left: none;
    border: 1px solid var(--hairline);
    border-radius: var(--r-card);
    padding: 14px 16px;
    background: var(--surface);
  }
  .guide-toc ul { display: none; }
  .guide-toc[open] ul { display: block; }
  .guide-toc .toc-title { cursor: pointer; margin: 0; list-style: none; }
  .guide-toc .toc-title::-webkit-details-marker { display: none; }
  .guide-toc .toc-title::after { content: " ▾"; color: var(--muted); }
  .guide-toc[open] .toc-title::after { content: " ▴"; }
}

/* ---- Editorial callouts (blockquotes in guide bodies) ----
   Guides write `> **Rule of thumb:** ...` blockquotes; each renders as a
   quiet left-ruled panel. Variants come from the bold lead-in text, no
   extra markup needed. */
.guide-body blockquote {
  margin: 24px 0;
  padding: 14px 20px;
  border-left: 3px solid var(--brand);
  background: var(--surface);
  border-radius: 0 var(--r-line) var(--r-line) 0;
}
.guide-body blockquote p { margin: 0; color: var(--ink-soft); font-size: 16px; }
.guide-body blockquote strong { color: var(--brand); font-weight: 600; }