.zb-index, .zb-article { width: min(1180px, calc(100% - 48px)); margin: 0 auto; color: #25283c; letter-spacing: 0; }
.zb-index { padding: 32px 0 72px; }
.zb-filters { display: flex; flex-wrap: wrap; gap: 8px; }
.zb-filters button, .zb-empty button { border: 1px solid #dbdeea; border-radius: 6px; background: #fff; padding: 10px 16px; color: #3d4055; font: inherit; cursor: pointer; }
.zb-filters button[aria-pressed="true"] { background: #5b45c6; border-color: #5b45c6; color: #fff; }
.zb-result-count { margin: 20px 0; color: #62677a; font-size: 14px; }
.zb-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.zb-card { border: 1px solid #e0e3ed; border-radius: 8px; overflow: hidden; min-width: 0; background: #fff; }
.zb-card[hidden], .zb-empty[hidden] { display: none; }
.zb-card-link { display: flex; flex-direction: column; height: 100%; text-decoration: none; color: inherit; }
.zb-card-link > img { width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; padding: 20px; background: #f1f4f9; }
.zb-card-copy { padding: 24px; display: flex; flex: 1; flex-direction: column; gap: 12px; }
.zb-card h2 { font-size: 21px; line-height: 1.4; font-weight: 650; margin: 0; letter-spacing: 0; overflow-wrap: anywhere; }
.zb-card p { margin: 0; font-size: 15px; line-height: 1.65; color: #575e71; }
.zb-card .zb-meta { margin-top: auto; padding-top: 8px; font-size: 13px; }
.zb-category { color: #5241ae !important; font-size: 13px !important; font-weight: 650; }
.zb-card-link:hover h2 { color: #5241ae; text-decoration: underline; text-underline-offset: 4px; }
.zb-index a:focus-visible, .zb-index button:focus-visible, .zb-article a:focus-visible { outline: 3px solid #2685a5; outline-offset: 3px; }
.zb-empty { padding: 36px 0; }
.zb-empty p { margin: 12px 0 20px; }
.zb-article { padding-top: 122px; padding-bottom: 72px; }
.zb-article-heading { max-width: 960px; margin: 0 auto 36px; }
.zb-article-heading nav { font-size: 14px; line-height: 1.7; margin-bottom: 32px; }
.zb-article a { color: #5341ba; }
.zb-article-heading h1 { font-size: 40px; line-height: 1.2; font-weight: 750; letter-spacing: 0; margin: 14px 0 20px; overflow-wrap: anywhere; }
.zb-deck { max-width: 800px; font-size: 19px; line-height: 1.65; color: #575e71; }
.zb-article-heading .zb-meta { font-size: 14px; color: #62677a; margin: 20px 0 28px; line-height: 1.7; }
.zb-cover { width: 100%; height: auto; max-height: 340px; aspect-ratio: 12 / 5; object-fit: contain; background: #f1f4f9; padding: 24px; border-radius: 8px; }
.zb-reading-layout { display: grid; grid-template-columns: 235px minmax(0, 760px); gap: 48px; justify-content: center; align-items: start; }
.zb-toc { position: sticky; top: 110px; border-left: 2px solid #dcd8ed; padding-left: 20px; }
.zb-toc h2 { font-size: 16px; margin: 0 0 14px; }
.zb-toc a { display: block; font-size: 14px; line-height: 1.6; margin-bottom: 12px; text-decoration: none; }
.zb-toc a:hover { text-decoration: underline; }
.zb-prose { font-size: 17px; line-height: 1.85; color: #3f4658; overflow-wrap: anywhere; }
.zb-prose p { margin: 0 0 22px; }
.zb-prose .zb-intro { font-size: 19px; color: #30374b; }
.zb-prose section { scroll-margin-top: 112px; margin-top: 32px; }
.zb-prose h2 { font-size: 26px; line-height: 1.35; color: #25283c; margin: 0 0 18px; letter-spacing: 0; }
.zb-prose h3 { font-size: 19px; margin: 24px 0 12px; }
.zb-prose ul { padding-left: 24px; list-style: disc; }
.zb-prose li { margin-bottom: 8px; }
.zb-article-cta { border-top: 1px solid #dfe3ed; margin-top: 32px; padding-top: 28px; }
.zb-article-cta h2 { font-size: 23px; line-height: 1.4; }
.zb-article-cta p { font-size: 16px; line-height: 1.75; margin: 12px 0 20px; }
.zb-article-cta a { display: inline-block; margin: 0 24px 12px 0; font-weight: 600; }
.zb-related { border-top: 1px solid #dfe3ed; margin-top: 56px; padding-top: 32px; }
.zb-related > h2 { margin-bottom: 24px; font-size: 26px; }
.zb-back { display: inline-block; margin-top: 28px; }
@media (max-width: 1000px) {
  .zb-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zb-reading-layout { grid-template-columns: minmax(0, 760px); gap: 28px; }
  .zb-toc { position: static; }
}
@media (max-width: 600px) {
  .zb-index, .zb-article { width: calc(100% - 32px); }
  .zb-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .zb-article { padding-top: 96px; }
  .zb-article-heading h1 { font-size: 30px; }
  .zb-deck, .zb-prose .zb-intro { font-size: 18px; }
  .zb-prose h2 { font-size: 24px; }
  .zb-cover { padding: 16px; aspect-ratio: 16 / 9; }
  .zb-card-copy { padding: 20px; }
}