/* Shared section identity and navigation across the handbook, cases, and quizzes. */
:root { --cc-header-height: 80px; }
.cc-top-anchor { display: block; height: 0; scroll-margin-top: 0; }
.cc-section-header { position: sticky; top: 0; z-index: 60; background: #111719; color: #fafaf8; }
.cc-section-header-inner { width: min(1260px, calc(100% - 96px)); margin-inline: auto; min-height: var(--cc-header-height); display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 10px; }
.cc-section-header .cc-section-brand { display: block; flex-shrink: 0; border-left: 2px solid #a3212c; padding-left: 14px; color: inherit; font-family: 'Barlow Condensed', 'Arial Narrow', Arial, sans-serif; font-size: 1.3rem; font-weight: 600; line-height: 1.05; letter-spacing: 2px; text-decoration: none; }
.cc-section-brand > span { display: block; margin-top: 4px; font-family: Arial, sans-serif; font-size: .75rem; letter-spacing: 1px; }
.cc-section-header nav { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 4px 30px; font-family: Inter, 'Helvetica Neue', Arial, sans-serif; font-size: .875rem; line-height: 1.4; }
.cc-section-header nav a { display: inline-flex; align-items: center; min-height: 44px; color: #fff; text-decoration: none; white-space: nowrap; }
.cc-section-header nav a:hover, .cc-section-header nav a[aria-current] { color: #fff; text-decoration: none; }
.cc-section-header a:focus-visible { outline: 2px solid #edb8bd; outline-offset: 5px; }
body[data-cc-section] :is(main [id], .chapter-section, #book, #apps), .chief-cases-site :is(.case-stage, .question, .references, .case-algorithms, #collection, #knowledge-checks) { scroll-margin-top: calc(var(--cc-header-height) + 32px); }
body[data-cc-section] .chapter-contents, .chief-cases-site .case-contents { top: calc(var(--cc-header-height) + 24px); max-height: calc(100dvh - var(--cc-header-height) - 48px); }
body[data-cc-section='quizzes'] .sidebar { top: calc(var(--cc-header-height) + 24px); }
body[data-cc-section='quizzes'] .mobile-progress { top: var(--cc-header-height); }
@media (max-width: 760px) {
  :root { --cc-header-height: 100px; }
  .cc-section-header-inner { width: calc(100% - 36px); gap: 14px; }
  .cc-section-header .cc-section-brand { font-size: 1.05rem; letter-spacing: 1.2px; padding-left: 10px; }
  .cc-section-header nav { max-width: 170px; gap: 2px 16px; font-size: .8125rem; }
  .cc-section-header nav a { min-height: 32px; }
  .cc-section-header nav a:first-child { justify-content: flex-end; width: 100%; }
  body[data-cc-section='quizzes'] :is(.question, .results) { scroll-margin-top: calc(var(--cc-header-height) + 80px); }
}
@media (max-width: 960px) { body[data-cc-section] .chapter-contents { top: var(--cc-header-height); max-height: none; } }
@media (max-width: 900px) { .chief-cases-site .case-contents { top: var(--cc-header-height); max-height: none; } }
@media print { .cc-section-header { display: none; } }