/* Layout only; fonts, colors, controls and page chrome are shared with FSOtools. */
.guidance-library .guidance-hero { padding-block: 42px 34px; }
.guidance-library .guidance-hero .lead { margin-bottom: 0; }
.guidance-library .guidance-meta { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); margin-top: 26px; }
.guidance-library .guidance-meta b { font-size: 20px; line-height: 1.35; margin-top: 4px; }
.guidance-library .guidance-downloads { padding-block: 36px 48px; }
.guidance-library .section-head > p { margin: 0; color: var(--ink-3); }
.guidance-products { display: grid; gap: 16px; }
.guidance-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 24px; padding: 26px 28px; }
.guidance-card h3 { font-size: 24px; line-height: 1.25; margin-bottom: 8px; }
.guidance-card p { max-width: 70ch; font-size: 16px; }
.guidance-card .actions { flex-wrap: nowrap; }
.guidance-card .btn { min-width: 100px; min-height: 44px; }
.guidance-library .trio p { font-size: 16px; }
.guidance-sources { scroll-margin-top: 80px; }
.source-library { display: grid; grid-template-columns: minmax(230px, 1fr) minmax(0, 2fr); gap: 40px; margin-top: 28px; }
.source-library h3 { margin: 0 0 8px; font-size: 23px; }
.source-library p { color: var(--ink-3); font-size: 16px; }
.source-letters, .source-issues { list-style: none; padding: 0; margin: 20px 0 0; }
.source-letters li + li { margin-top: 10px; }
.source-letters a, .source-issues a { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 13px 16px; min-height: 48px; border: 1px solid var(--line); border-radius: 6px; background: white; font-weight: 600; }
.source-letters a:hover, .source-issues a:hover { background: var(--bg-2, #f3f6fa); }
.source-format { font-size: 12px; white-space: nowrap; }
.source-tree { margin-top: 20px; }
.source-year { border: 1px solid var(--line); border-radius: 6px; margin-bottom: 10px; overflow: hidden; }
.source-year > summary { display: flex; align-items: center; gap: 12px; padding: 16px 18px; cursor: pointer; background: var(--bg-2, #f3f6fa); font-size: 20px; font-weight: 600; list-style: none; }
.source-year > summary::-webkit-details-marker { display: none; }
.source-year > summary::before { content: ''; width: 8px; height: 8px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform .15s; }
.source-year[open] > summary::before { transform: rotate(45deg); }
.source-count { margin-left: auto; font-size: 14px; font-weight: 400; color: var(--ink-3); }
.source-issues { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 16px 18px 20px 24px; padding-left: 16px; border-left: 2px solid var(--line); }
.source-issues li { position: relative; }
.source-issues li::before { content: ''; position: absolute; top: 24px; left: -16px; width: 14px; border-top: 2px solid var(--line); }
.source-issues a { font-size: 15px; height: 100%; }
.source-note { margin-top: 24px; font-size: 14px; color: var(--ink-3); max-width: 100ch; }
.source-year > summary:focus-visible, .source-library a:focus-visible { outline: 3px solid #1f6fd6; outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) { .source-year > summary::before { transition: none; } }
@media (max-width: 680px) {
  .guidance-library .guidance-hero { padding-block: 30px 26px; }
  .guidance-library .guidance-meta { grid-template-columns: 1fr; }
  .guidance-library .guidance-meta b { font-size: 18px; }
  .guidance-card { grid-template-columns: 1fr; gap: 18px; padding: 22px; }
  .guidance-card h3 { font-size: 22px; }
  .source-library { grid-template-columns: 1fr; gap: 28px; }
  .source-issues { grid-template-columns: 1fr; }
}