/* Knowledge base: knowledge.html (index) and knowledge-<slug>.html articles. Shares tokens with site.css. */
.kn-hero{position:relative;background:linear-gradient(180deg,#f6f8f9 0%,#e9eef1 100%);padding:48px 0 56px;border-bottom:1px solid var(--line)}
.kn-hero .crumb{font-size:13px;color:var(--text-lt);margin-bottom:24px}
.kn-hero .crumb a{color:var(--text)}
.kn-hero .crumb a:hover{color:var(--accent)}
.kn-hero .eyebrow{color:var(--accent);font-weight:500;letter-spacing:.08em;text-transform:uppercase;font-size:12px}
.kn-hero h1{font-size:clamp(30px,3.4vw,46px);font-weight:300;line-height:1.12;letter-spacing:-.01em;color:var(--black);margin:0 0 18px;max-width:26ch}
.kn-hero h1 b{font-weight:600;color:var(--ink)}
.kn-hero .lede{font-size:17px;line-height:1.65;color:var(--text-md);max-width:70ch;margin:0 0 20px}
.kn-meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:13px;color:var(--text-lt);margin:0}
.kn-meta b{font-weight:500;color:var(--text-md)}

.kn-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:64px;padding:56px 0 80px;align-items:start}
.kn-main{max-width:78ch;font-size:15.5px;line-height:1.75;color:var(--text-md)}
.kn-main h2{font-size:24px;font-weight:500;color:var(--black);margin:44px 0 14px;line-height:1.25}
.kn-main h2:first-child{margin-top:0}
.kn-main h3{font-size:17px;font-weight:600;color:var(--ink);margin:28px 0 8px}
.kn-main p{margin:0 0 16px}
.kn-main ul,.kn-main ol{margin:0 0 18px;padding-left:22px;list-style:disc}
.kn-main ol{list-style:decimal}
.kn-main li{margin:0 0 8px}
.kn-main li::marker{color:var(--accent)}
.kn-main a{color:var(--accent-dk);text-decoration:underline;text-decoration-color:rgba(43,92,133,.35);text-underline-offset:2px}
.kn-main a:hover{color:var(--accent)}
.kn-main .def{background:#f5f8fa;border-left:3px solid var(--accent);padding:16px 20px;margin:0 0 26px;font-size:16px;color:var(--text-md)}
.kn-main .def b{color:var(--ink);font-weight:600}
.kn-main .note{font-size:13.5px;color:var(--text);border-top:1px solid var(--line);padding-top:12px;margin-top:8px}
.kn-main .formula{font-family:ui-monospace,Consolas,monospace;background:#f5f5f5;border:1px solid var(--line);padding:10px 14px;border-radius:4px;font-size:14px;overflow-x:auto;margin:0 0 16px}

.kn-main .tbl{width:100%;overflow-x:auto;margin:6px 0 24px;border:1px solid var(--line);border-radius:6px}
.kn-main table{width:100%;border-collapse:collapse;font-size:14px;line-height:1.5;min-width:520px}
.kn-main caption{text-align:left;caption-side:top;font-size:13px;color:var(--text);padding:10px 14px;font-weight:500;background:#fafbfc;border-bottom:1px solid var(--line)}
.kn-main th,.kn-main td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.kn-main th{background:#f5f8fa;color:var(--ink);font-weight:600;font-size:13px;white-space:nowrap}
.kn-main tbody tr:last-child td{border-bottom:0}
.kn-main tbody tr:nth-child(even) td{background:#fcfcfc}
.kn-main td b{color:var(--text-md);font-weight:600}

.kn-faq{border:1px solid var(--line);border-radius:6px;margin:8px 0 28px;overflow:hidden}
.kn-faq details{border-bottom:1px solid var(--line)}
.kn-faq details:last-child{border-bottom:0}
.kn-faq summary{cursor:pointer;list-style:none;padding:16px 48px 16px 20px;font-size:15.5px;font-weight:500;color:var(--black);position:relative;transition:background .2s}
.kn-faq summary::-webkit-details-marker{display:none}
.kn-faq summary::after{content:"";position:absolute;right:20px;top:50%;width:10px;height:10px;border-right:1.6px solid var(--accent);border-bottom:1.6px solid var(--accent);transform:translateY(-70%) rotate(45deg);transition:transform .25s}
.kn-faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.kn-faq summary:hover{background:#fafbfc}
.kn-faq details>div{padding:0 20px 18px;font-size:14.5px;color:var(--text-md)}
.kn-faq details>div p:last-child{margin-bottom:0}

.kn-machines{background:#f5f8fa;border:1px solid var(--line);border-radius:6px;padding:24px 26px;margin:8px 0 28px}
.kn-machines h2{margin-top:0;font-size:20px}
.kn-machines ul{list-style:none;padding:0;margin:0}
.kn-machines li{padding:10px 0;border-top:1px solid var(--line);margin:0}
.kn-machines li:first-child{border-top:0;padding-top:0}
.kn-machines li a{font-weight:600;text-decoration:none;color:var(--ink)}
.kn-machines li a:hover{color:var(--accent)}
.kn-machines li span{display:block;color:var(--text);font-size:14px}
.kn-cta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:32px 0 0;padding:26px 28px;background:var(--ink);color:#fff;border-radius:6px}
.kn-cta p{margin:0;flex:1 1 320px;color:#fff;font-size:15px;line-height:1.55}
.kn-cta p b{font-weight:600}
.kn-cta .wbtn.light{background:rgba(255,255,255,.1)}

.kn-side{position:sticky;top:calc(var(--nav-h) + 24px)}
.kn-side .box{border:1px solid var(--line);border-radius:6px;padding:20px 22px;margin-bottom:22px;background:#fff}
.kn-side h3{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-lt);font-weight:500;margin:0 0 12px}
.kn-side ul{list-style:none;padding:0;margin:0}
.kn-side li{border-top:1px solid var(--line);padding:10px 0}
.kn-side li:first-child{border-top:0;padding-top:0}
.kn-side li a{display:block;font-size:14px;line-height:1.45;color:var(--text-md)}
.kn-side li a:hover{color:var(--accent)}
.kn-side li a.current{color:var(--accent);font-weight:500}
.kn-side .toc a{font-size:13.5px;color:var(--text)}
.kn-side .contact{background:#f5f8fa}
.kn-side .contact p{font-size:14px;color:var(--text-md);margin:0 0 14px;line-height:1.55}

/* Index page cards */
.kn-list{padding:56px 0 80px}
.kn-intro{max-width:78ch;font-size:16px;line-height:1.7;color:var(--text-md);margin:0 0 40px}
.kn-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.kn-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:6px;padding:26px 26px 22px;background:#fff;transition:box-shadow .25s,transform .25s;color:inherit}
.kn-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.kn-card .tag{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);font-weight:500;margin-bottom:12px}
.kn-card h2{font-size:19px;font-weight:600;line-height:1.35;margin:0 0 10px;color:var(--black)}
.kn-card p{font-size:14px;color:var(--text);line-height:1.6;margin:0 0 18px;flex:1}
.kn-card .more{font-size:13.5px}
.kn-std{margin-top:56px;padding:28px 30px;background:#f5f8fa;border:1px solid var(--line);border-radius:6px;max-width:78ch}
.kn-std h2{font-size:20px;margin:0 0 12px}
.kn-std ul{padding-left:20px;list-style:disc;font-size:14.5px;color:var(--text-md)}
.kn-std li{margin-bottom:6px}

@media (max-width:1100px){.kn-body{grid-template-columns:minmax(0,1fr) 260px;gap:40px}.kn-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:860px){
  .kn-body{grid-template-columns:1fr;gap:32px;padding:40px 0 60px}
  .kn-side{position:static}
  .kn-main{max-width:none;font-size:15px}
  .kn-main h2{font-size:21px;margin-top:36px}
  .kn-hero{padding:32px 0 40px}
  .kn-grid{grid-template-columns:1fr}
  .kn-cta{padding:22px}
}