/* Hub layout only. Colors, fonts, header, footer, and article cards come from /blog/styles.css. */
.hub-page { color-scheme: dark; }
.hub-page [hidden] { display: none !important; }
.hub-skip { position: absolute; left: 24px; top: -100px; z-index: 100; background: var(--txt); color: var(--bg); padding: 12px 18px; }
.hub-skip:focus { top: 12px; }
.hub-page a:focus-visible, .hub-page summary:focus-visible, .hub-page button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.hub-page .mk-intro .label { margin-bottom: 26px; }
.hub-content { padding: 76px 0; }
.hub-crumb { display: flex; flex-wrap: wrap; gap: 12px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--txt-3); margin-bottom: 28px; }
.hub-crumb a:hover { color: var(--cyan); }
.hub-heading { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.hub-heading h2 { font-size: 22px; line-height: 1.35; }
.hub-heading > .mono { font-size: 11px; letter-spacing: .14em; color: var(--txt-3); }
.hub-faq { display: grid; grid-template-columns: 260px minmax(0,1fr); gap: 48px; align-items: start; }
.hub-topics { border-top: 1px solid var(--line); }
.hub-topics a { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 18px 12px; border-bottom: 1px solid var(--line); font-family: var(--font-d); font-size: 14px; }
.hub-topics a > span:first-child { display: flex; gap: 12px; }
.hub-topics .mono { font-size: 11px; color: var(--txt-3); }
.hub-topics a[aria-current] { color: var(--cyan); background: rgba(61,111,232,.08); }
.hub-topics a:hover { background: var(--surface); }
.hub-topic + .hub-topic { margin-top: 46px; }
.hub-topic[hidden] + .hub-topic { margin-top: 0; }
.hub-question { border-top: 1px solid var(--line); scroll-margin-top: calc(var(--nav-h) + 30px); }
.hub-question:last-child { border-bottom: 1px solid var(--line); }
.hub-question summary { cursor: pointer; display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 23px 4px; font-family: var(--font-d); font-size: 17px; line-height: 1.5; list-style: none; }
.hub-question summary::-webkit-details-marker { display: none; }
.hub-question summary::after { content: '+'; color: var(--blue-hi); flex: none; }
.hub-question[open] summary { padding-bottom: 12px; }
.hub-question[open] summary::after { content: '−'; }
.hub-answer { padding: 0 4px 25px; }
.hub-answer p { font-size: 14px; color: var(--txt-3); line-height: 1.8; }
.hub-answer-links { display: flex; flex-wrap: wrap; gap: 14px 24px; margin-top: 18px; font-size: 13px; color: var(--blue-hi); }
.hub-answer-links a:hover { color: var(--cyan); }
.hub-return { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; border: 1px solid var(--line); border-left: 3px solid var(--cyan); border-radius: 6px; padding: 18px; margin-bottom: 28px; font-size: 14px; }
.hub-return a { color: var(--blue-hi); }
.hub-status { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.hub-next { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; margin-top: 52px; padding-top: 30px; border-top: 1px solid var(--line); }
.hub-next h2 { font-size: 20px; }
.hub-next p { color: var(--txt-3); font-size: 14px; margin-top: 8px; }
.hub-next > a { color: var(--blue-hi); font-size: 14px; }
.hub-resource h3 { font-size: 23px; }
.hub-resource p { font-size: 14px; }
.hub-resource .ins-foot { padding-top: 18px; color: var(--txt-3); }
.hub-resource .ins-chip, .hub-resource .ins-date, .hub-resource .ins-foot { font-size: 11px; }
.hub-resource-meta { display: grid; gap: 5px; padding-top: 3px; color: var(--txt-4); font-family: var(--font-m); font-size: 10px; line-height: 1.45; letter-spacing: .035em; }
.hub-resource-meta span:last-child { color: var(--txt-3); }
.hub-page .menu-overlay:not(.open) { visibility: hidden; }
@media (max-width: 860px) { .hub-faq { grid-template-columns: 210px minmax(0,1fr); gap: 26px; } }
@media (max-width: 600px) {
  .hub-page .nav { gap: 12px; padding-inline: 16px; }
  .hub-page .brand { gap: 0; }
  .hub-page .brand-sep { display: none; }
  .hub-page .brand-logo { height: 25px; }
  .hub-page .nav-right { gap: 8px; }
  .hub-page .btn-nav { padding: 10px 12px; font-size: 13px; }
  .hub-content { padding: 48px 0; }
  .hub-faq { grid-template-columns: 1fr; gap: 34px; }
  .hub-topics { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; border-top: 0; }
  .hub-topics a { padding: 12px 10px; border: 1px solid var(--line); border-radius: 8px; align-items: center; }
  .hub-topic-number { display: none; }
  .hub-resources { grid-template-columns: 1fr; }
  .hub-resource { padding: 24px; }
  .hub-question summary { font-size: 16px; }
}
@media (pointer: coarse) { .hub-answer-links a, .hub-next > a, .hub-return a { min-height: 44px; display: inline-flex; align-items: center; } }
@media (prefers-reduced-motion: reduce) { .hub-page *, .hub-page *::before, .hub-page *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } .hub-resource:hover { transform: none; } }