/**
 * IA-01 + IA-02 — Institutional "section pattern".
 *
 * Presentation for templates/includes/_inst-section-pattern.html.twig.
 * Self-contained (no Tailwind @apply) so the pattern renders identically
 * inside the theme and in standalone previews. Uses the institutional palette:
 *   ink   #0b2c4a   action #1f5fc4   border #d9e1ec   slate bg #f3f6fb
 *   muted #5b6675   text   #33404e
 */

.inst-section-pattern {
  --isp-ink: #0b2c4a;
  --isp-action: #1f5fc4;
  --isp-border: #d9e1ec;
  --isp-slate: #f3f6fb;
  --isp-muted: #5b6675;
  --isp-text: #33404e;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  color: var(--isp-text);
}

/* ── IA-01 three-level rail ─────────────────────────────────────────────── */
.inst-section-rail {
  border: 1px solid var(--isp-border);
  border-radius: 1rem;
  background: linear-gradient(180deg, #fff 0%, var(--isp-slate) 100%);
  padding: 1rem 1.15rem 1.1rem;
}
.inst-section-rail__eyebrow {
  margin: 0 0 0.7rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--isp-muted);
}
.inst-section-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.4rem 0.2rem;
}
.inst-section-rail__item {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  flex: 1 1 12rem;
}
.inst-section-rail__link {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  flex: 1;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--isp-border);
  border-radius: 0.6rem;
  background: #fff;
  text-decoration: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}
.inst-section-rail__link:hover {
  border-color: #b9c8dd;
  box-shadow: 0 6px 16px rgba(11, 44, 74, 0.08);
  transform: translateY(-1px);
}
.inst-section-rail__tier {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--isp-action);
}
.inst-section-rail__label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--isp-ink);
  line-height: 1.25;
}
.inst-section-rail__desc {
  font-size: 0.75rem;
  color: var(--isp-muted);
}
.inst-section-rail__arrow {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
  color: #b9c8dd;
}
@media (max-width: 640px) {
  .inst-section-rail__item { flex-basis: 100%; }
  .inst-section-rail__arrow { display: none; }
}

/* ── IA-02 blocks (shared chrome) ──────────────────────────────────────── */
.inst-section-block {
  scroll-margin-top: 6rem;
  border: 1px solid var(--isp-border);
  border-radius: 1rem;
  background: #fff;
  padding: 1.5rem 1.5rem 1.65rem;
  box-shadow: 0 1px 2px rgba(11, 44, 74, 0.05);
}
.inst-section-block--overview {
  border-left: 4px solid var(--isp-action);
  background: linear-gradient(180deg, #fff 0%, #fbfcfe 100%);
}
.inst-section-block--ai {
  background: linear-gradient(180deg, #f6f9ff 0%, #fff 70%);
  border-color: #cfe0fb;
}
.inst-section-block__head {
  margin-bottom: 0.9rem;
}
.inst-section-block__tier {
  display: inline-block;
  margin-bottom: 0.3rem;
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--isp-action);
}
.inst-section-block__title {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--isp-ink);
}

.inst-section-lead {
  margin: 0 0 0.9rem;
  max-width: 60ch;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--isp-text);
}
.inst-section-lead:last-child { margin-bottom: 0; }

/* Key points / facts */
.inst-section-keypoints {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.inst-section-keypoints li {
  display: flex;
  gap: 0.55rem;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--isp-text);
}
.inst-section-keypoints__dot {
  flex: 0 0 auto;
  margin-top: 0.05rem;
  font-size: 0.7rem;
  line-height: 1.5;
  color: var(--isp-action);
}

/* Stats */
.inst-section-stats {
  margin: 1.1rem 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: 0.75rem;
}
.inst-section-stats__item {
  border: 1px solid var(--isp-border);
  border-radius: 0.6rem;
  background: var(--isp-slate);
  padding: 0.7rem 0.85rem;
}
.inst-section-stats__value {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--isp-ink);
}
.inst-section-stats__label {
  margin: 0.2rem 0 0;
  font-size: 0.75rem;
  color: var(--isp-muted);
}

/* CTA buttons */
.inst-section-cta {
  margin-top: 1.1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.inst-section-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--isp-border);
  border-radius: 0.5rem;
  background: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--isp-ink);
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.inst-section-cta__btn:hover { background: var(--isp-slate); border-color: #b9c8dd; }
.inst-section-cta__btn--primary {
  background: var(--isp-action);
  border-color: var(--isp-action);
  color: #fff;
}
.inst-section-cta__btn--primary:hover { background: #195ac0; }

/* Detail grid of cards */
.inst-section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: 1rem;
}
.inst-section-card {
  border: 1px solid var(--isp-border);
  border-radius: 0.7rem;
  background: var(--isp-slate);
  padding: 1rem 1.1rem 1.1rem;
}
.inst-section-card__title {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--isp-ink);
}
.inst-section-card__body {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--isp-text);
}
.inst-section-card__list {
  margin: 0.55rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--isp-text);
}
.inst-section-card__list li { margin: 0.2rem 0; }

/* Supporting documents */
.inst-section-docs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.inst-section-docs__link {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--isp-border);
  border-radius: 0.6rem;
  background: #fff;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.inst-section-docs__link:hover { border-color: #b9c8dd; box-shadow: 0 4px 12px rgba(11, 44, 74, 0.07); }
.inst-section-docs__icon { width: 1.25rem; height: 1.25rem; flex: 0 0 auto; margin-top: 0.1rem; color: var(--isp-action); }
.inst-section-docs__body { display: flex; flex-direction: column; gap: 0.3rem; }
.inst-section-docs__title { font-size: 0.9375rem; font-weight: 600; color: var(--isp-ink); }
.inst-section-docs__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; }
.inst-section-docs__number {
  font-family: ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--isp-ink);
  background: #eef3fb;
  border: 1px solid #d6e1f1;
  border-radius: 0.3rem;
  padding: 0.05rem 0.4rem;
}
.inst-section-docs__version { font-size: 0.75rem; color: var(--isp-muted); }
.inst-section-docs__all {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.9rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--isp-action);
  text-decoration: none;
}
.inst-section-docs__all:hover { color: var(--isp-ink); }

/* Status badge (mirrors inst-document-centre.css minimal set) */
.inst-section-pattern .inst-doc-badge {
  display: inline-block;
  font-size: 0.625rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  border: 1px solid transparent;
  white-space: nowrap;
}
.inst-section-pattern .inst-doc-badge--placeholder { color: #6b3fa0; background: #f3edfb; border-color: #ddccf2; border-style: dashed; }
.inst-section-pattern .inst-doc-badge--adopted { color: #1b6b3a; background: #e8f6ee; border-color: #bfe3cd; }
.inst-section-pattern .inst-doc-badge--draft { color: #8a5a00; background: #fbf3e2; border-color: #efd9ad; }
.inst-section-pattern .inst-doc-badge--under_review { color: #1f5fc4; background: #eaf1fd; border-color: #c9dcf7; }

/* AI knowledge */
.inst-section-keypoints--ai .inst-section-keypoints__dot { color: #1f5fc4; }
.inst-section-faq { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.9rem; }
.inst-section-faq__item {
  border: 1px solid var(--isp-border);
  border-radius: 0.6rem;
  background: #fff;
  overflow: hidden;
}
.inst-section-faq__q {
  cursor: pointer;
  list-style: none;
  padding: 0.65rem 0.9rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--isp-ink);
}
.inst-section-faq__q::-webkit-details-marker { display: none; }
.inst-section-faq__item[open] .inst-section-faq__q { border-bottom: 1px solid var(--isp-border); }
.inst-section-faq__a { padding: 0.65rem 0.9rem; font-size: 0.875rem; line-height: 1.55; color: var(--isp-text); }
.inst-section-aichips { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 0.95rem; }
.inst-section-aichips__chip {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--isp-ink);
  background: #fff;
  border: 1px solid #cfe0fb;
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
}

/* Governance / metadata definition lists */
.inst-section-meta { margin: 0; display: flex; flex-direction: column; gap: 0; }
.inst-section-meta--cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 0; }
.inst-section-meta__row {
  display: flex;
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid #eef2f7;
}
.inst-section-meta__row dt {
  flex: 0 0 11rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--isp-muted);
}
.inst-section-meta__row dd { margin: 0; font-size: 0.9375rem; color: var(--isp-text); }
.inst-section-meta__sublabel {
  margin: 1rem 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--isp-muted);
}

/* Standards & policies tags */
.inst-section-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.inst-section-tags__link {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--isp-ink);
  background: var(--isp-slate);
  border: 1px solid var(--isp-border);
  border-radius: 0.5rem;
  padding: 0.35rem 0.7rem;
  text-decoration: none;
}
a.inst-section-tags__link:hover { border-color: #b9c8dd; background: #eef3fb; }

/* Related content */
.inst-section-related {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 0.7rem;
}
.inst-section-related__link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  height: 100%;
  padding: 0.85rem 0.95rem;
  border: 1px solid var(--isp-border);
  border-radius: 0.6rem;
  background: var(--isp-slate);
  text-decoration: none;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.inst-section-related__link:hover { border-color: #b9c8dd; transform: translateY(-1px); }
.inst-section-related__title { font-size: 0.9375rem; font-weight: 600; color: var(--isp-ink); }
.inst-section-related__desc { font-size: 0.8125rem; line-height: 1.45; color: var(--isp-muted); }

/* Print: drop interactive chrome, keep the institutional flow open */
@media print {
  .inst-section-rail { background: #fff; }
  .inst-section-block { box-shadow: none; break-inside: avoid; }
  .inst-section-faq__item[open] .inst-section-faq__a,
  .inst-section-faq__a { display: block; }
}