:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #20252b; background: #fff; line-height: 1.75; }
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 1040px; padding: 16px 28px 72px; margin: auto; }
a { color: #244f8d; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid #2864af; outline-offset: 4px; }
[hidden] { display: none !important; }
.skip-link { position: fixed; left: 16px; top: -100px; padding: 10px 16px; background: #fff; z-index: 10; }
.skip-link:focus { top: 12px; }
.page-header { margin: 24px 0 20px; }
h1 { font-size: 23px; line-height: 1.4; margin: 0 0 8px; }
h2 { font-size: 21px; line-height: 1.55; margin: 0 0 16px; }
h3 { font-size: 16px; margin: 28px 0 10px; }
h4 { font-size: 16px; line-height: 1.7; margin: 0 0 10px; }
p { margin: 10px 0; }
.page-meta { color: #535d68; font-size: 14px; }
label { display: block; font-size: 14px; margin-top: 18px; }
select { display: block; width: 100%; max-width: 600px; min-height: 44px; font: inherit; color: inherit; background: #fff; border: 1px solid #aeb5be; border-radius: 4px; padding: 8px; margin-top: 6px; }
.intro { font-size: 15px; }
.overview { margin: 28px 0; }
.overview-list { padding-left: 24px; margin: 20px 0; }
.overview-list li { margin-bottom: 18px; padding-left: 4px; }
.overview-list h3 { margin: 0; line-height: 1.6; }
.overview-list h3 a { display: inline-block; min-height: 44px; padding: 8px 0; }
.overview-list p { margin: 0; }
.overview-caution { border-left: 2px solid #cbd2da; padding-left: 14px; color: #535d68; font-size: 14px; }
.question-nav { border-block: 1px solid #dce0e5; margin: 22px 0; padding: 12px 0; }
.question-nav ol { padding-left: 24px; margin: 0; }
.question-nav a { display: inline-block; padding: 8px 0; }
.question-section { border-top: 1px solid #dce0e5; margin-top: 40px; padding-top: 28px; scroll-margin-top: 20px; }
.answer { font-size: 17px; line-height: 1.85; }
.facts, .limits { padding-left: 22px; }
.facts li { margin-bottom: 20px; }
.limits li { margin-bottom: 12px; }
.source-links { display: flex; flex-wrap: wrap; gap: 2px 16px; font-size: 13px; }
.source-links a { display: inline-block; padding: 5px 0; }
.hypothesis { border-left: 2px solid #cbd2da; padding: 2px 0 4px 18px; margin: 20px 0 28px; }
summary { cursor: pointer; padding: 10px 0; color: #244f8d; }
dt { font-weight: 600; font-size: 14px; margin: 18px 0 4px; }
dd { margin: 0; }
.back-link { display: inline-block; font-size: 14px; padding: 8px 0; }
.starting-point { border-top: 1px solid #dce0e5; padding-top: 28px; margin-top: 40px; }
.empty-state, #load-error { padding: 20px 0; }
@media (max-width: 600px) {
  main { padding: 12px 18px 48px; }
  h1 { font-size: 21px; }
  h2 { font-size: 19px; }
  .answer { font-size: 16px; }
  .hypothesis { padding-left: 12px; }
}
@media print {
  .dashboard-nav, .skip-link, .question-nav, label, .back-link { display: none; }
  main { max-width: none; padding: 0; }
  .question-section { break-before: page; }
}