.kb-layout { display: grid; grid-template-columns: 245px minmax(0, 760px) 190px; gap: 44px; max-width: 1390px; padding: 44px 28px 80px; margin: auto; align-items: start; }
.kb-sidebar, .kb-toc { position: sticky; top: 110px; max-height: calc(100vh - 135px); overflow-y: auto; font-size: .875rem; }
.kb-sidebar summary { font-size: 1rem; font-weight: 650; cursor: pointer; margin-bottom: 20px; }
.kb-sidebar ul, .kb-toc ul { list-style: none; padding: 0; margin: 0; }
.kb-sidebar li > ul { border-left: 1px solid var(--rule); margin: 6px 0 18px 10px; padding-left: 8px; }
.kb-sidebar li > ul:empty { display: none; }
.kb-sidebar a { display: block; text-decoration: none; line-height: 1.45; padding: 8px 12px; border-radius: 6px; }
.kb-sidebar nav > ul > li > a { font-weight: 650; margin-top: 12px; }
.kb-sidebar a:hover { background: var(--bg-warm); }
.kb-sidebar a[aria-current="page"] { background: var(--accent-soft); color: #963917; font-weight: 650; }
.kb-help { border-top: 1px solid var(--rule); margin-top: 26px; }
.kb-main { min-width: 0; }
.kb-breadcrumbs ol { display: flex; flex-wrap: wrap; list-style: none; padding: 0; margin: 0 0 30px; gap: 8px; font-size: .875rem; color: var(--ink-2); }
.kb-breadcrumbs li + li::before { content: '/'; margin-right: 8px; color: var(--ink-3); }
.kb-breadcrumbs a { text-underline-offset: 3px; }
.kb-eyebrow { color: #963917; font-size: .875rem; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; }
.kb-heading h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.12; max-width: 22ch; }
.kb-heading > p:last-child { font-size: 1.125rem; color: var(--ink-2); margin: 20px 0 30px; }
.kb-heading { border-bottom: 1px solid var(--rule); margin-bottom: 30px; }
.kb-prose { font-size: 1rem; line-height: 1.8; overflow-wrap: anywhere; }
.kb-prose h2 { font-size: 1.5rem; line-height: 1.3; margin: 36px 0 16px; scroll-margin-top: 110px; }
.kb-prose h3 { font-size: 1.125rem; margin: 26px 0 12px; scroll-margin-top: 110px; }
.kb-prose a { color: #963917; text-underline-offset: 3px; }
.kb-prose li { margin-bottom: 10px; }
.kb-prose ul, .kb-prose ol { padding-left: 24px; }
.kb-prose blockquote { margin: 24px 0; border-left: 3px solid var(--accent-deep); padding: 4px 22px; background: var(--accent-soft); }
.kb-prose pre { overflow-x: auto; padding: 18px; background: var(--bg-warm); border-radius: 8px; }
.kb-prose img, .kb-prose video { display: block; width: 100%; height: auto; border: 1px solid var(--rule); border-radius: 10px; margin: 24px 0; }
.kb-prose table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; margin: 24px 0; }
.kb-prose th, .kb-prose td { text-align: left; border: 1px solid var(--rule); padding: 12px; min-width: 110px; }
.kb-prose th { background: var(--bg-warm); }
.kb-definition { margin: 0 0 34px; padding: clamp(20px, 4vw, 28px); border: 1px solid oklch(82% 0.07 60); border-left: 4px solid var(--accent-deep); border-radius: 10px; background: linear-gradient(145deg, var(--accent-soft), var(--bg-card)); scroll-margin-top: 110px; }
.kb-definition h2 { margin: 0 0 8px; font-size: 1.25rem; }
.kb-definition p:last-child { margin: 0; font-size: 1.08rem; line-height: 1.65; }
.kb-faq { margin-top: 42px; scroll-margin-top: 110px; }
.kb-faq > h2 { margin-bottom: 8px; }
.kb-faq article { padding: 20px 0; border-top: 1px solid var(--rule); }
.kb-faq article:last-child { border-bottom: 1px solid var(--rule); }
.kb-faq article h3 { margin: 0 0 8px; font-size: 1.1rem; }
.kb-faq article p { margin: 0; color: var(--ink-2); }
.kb-toc p { margin-top: 0; font-weight: 650; }
.kb-toc a { display: block; text-decoration: none; color: var(--ink-2); padding: 6px 0; line-height: 1.5; }
.kb-toc a:hover { color: #963917; text-decoration: underline; }
.kb-toc .kb-depth-3 { padding-left: 12px; }
.kb-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 30px 0; }
.kb-cards:empty { display: none; }
.kb-card { text-decoration: none; padding: 24px; background: var(--bg-card); border: 1px solid var(--rule); border-radius: 12px; transition: border-color .15s; }
.kb-card:hover { border-color: var(--accent-deep); }
.kb-card h2 { font-size: 1.125rem; line-height: 1.4; }
.kb-card h2 span { color: #963917; }
.kb-card p { font-size: 1rem; color: var(--ink-2); line-height: 1.6; margin-bottom: 0; }
.kb-next { border-top: 1px solid var(--rule); margin-top: 44px; padding-top: 24px; font-size: .875rem; color: var(--ink-2); }
.kb-next a { font-weight: 650; color: #963917; text-underline-offset: 3px; }
.kb-layout a:focus-visible, .kb-layout summary:focus-visible { outline: 3px solid var(--accent-deep); outline-offset: 3px; }
@media (max-width: 1200px) { .kb-layout { grid-template-columns: 220px minmax(0, 1fr); gap: 32px; } .kb-toc { display: none; } }
@media (max-width: 760px) { .kb-layout { grid-template-columns: minmax(0, 1fr); padding: 24px 20px 52px; gap: 28px; } .kb-sidebar { position: static; max-height: none; border-bottom: 1px solid var(--rule); padding-bottom: 20px; } .kb-sidebar nav { max-height: 235px; overflow-y: auto; } .kb-help { display: none !important; } .kb-sidebar summary { margin-bottom: 12px; } .kb-cards { grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .kb-card { transition: none; } }