/* Knowledge Base — extends the Receptionist design system (blueprint language). */
body{margin:0;background:var(--color-bg);color:var(--color-text);font-family:var(--font-body);text-wrap:pretty}
a{color:var(--color-accent-700);text-underline-offset:3px}
a:hover{color:var(--color-accent-800)}
.kb-wrap{max-width:1240px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.kb-grid-bg{background-image:linear-gradient(color-mix(in srgb,var(--color-accent) 7%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--color-accent) 7%,transparent) 1px,transparent 1px);background-size:48px 48px}
.kb-kicker{display:block;font-size:13px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--color-accent-700);margin-bottom:12px}
.kb-rule{height:1px;border:0;margin:0 0 24px;background:var(--color-divider)}
h1.kb-title{font-family:var(--font-heading);font-weight:600;font-size:clamp(38px,4.6vw,64px);line-height:1.04;letter-spacing:.01em;text-transform:uppercase;margin:0;margin-left:-.04em}
h1.kb-title em{font-style:normal;color:var(--color-accent-700)}
.kb-lead{font-size:16px;line-height:24px;max-width:58ch;margin:20px 0 0;color:color-mix(in srgb,var(--color-text) 78%,transparent)}
.kb-corner{position:relative}
.kb-corner i{position:absolute;width:9px;height:9px;border:1px solid var(--color-accent)}
.kb-corner i.tl{top:-1px;left:-1px;border-right:0;border-bottom:0}
.kb-corner i.tr{top:-1px;right:-1px;border-left:0;border-bottom:0}
.kb-corner i.bl{bottom:-1px;left:-1px;border-right:0;border-top:0}
.kb-corner i.br{bottom:-1px;right:-1px;border-left:0;border-top:0}
/* toolbar */
.kb-tools{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:36px}
.kb-search{flex:1;min-width:240px;position:relative}
.kb-search input{width:100%;box-sizing:border-box;padding:13px 16px;font-family:var(--font-body);font-size:15px;color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-divider);outline:none}
.kb-search input:focus{border-color:var(--color-accent)}
.kb-cats{display:flex;gap:8px;flex-wrap:wrap}
.kb-cat{padding:11px 16px;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--color-divider);background:transparent;color:var(--color-text);cursor:pointer;font-family:var(--font-body);transition:all .15s}
.kb-cat:hover{border-color:var(--color-accent)}
.kb-cat.on{background:var(--color-accent);border-color:var(--color-accent);color:#fff}
/* cards */
.kb-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:clamp(18px,2.5vw,28px);margin:36px 0 80px}
.kb-card{position:relative;display:block;border:1px solid var(--color-divider);background:var(--color-bg);padding:24px;text-decoration:none;color:var(--color-text);transition:border-color .15s,transform .15s}
.kb-card:hover{border-color:var(--color-accent);transform:translateY(-3px);color:var(--color-text)}
.kb-card .cat{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--color-accent-700);border:1px solid var(--color-accent-300);padding:4px 10px}
.kb-card h3{font-family:var(--font-heading);font-weight:600;font-size:22px;letter-spacing:.02em;text-transform:uppercase;line-height:1.15;margin:16px 0 0}
.kb-card p{font-size:14px;line-height:21px;margin:10px 0 0;color:color-mix(in srgb,var(--color-text) 74%,transparent)}
.kb-card .meta{display:flex;gap:14px;margin-top:16px;font-size:12px;color:color-mix(in srgb,var(--color-text) 55%,transparent)}
.kb-empty{padding:60px 0;text-align:center;color:color-mix(in srgb,var(--color-text) 55%,transparent);display:none}
/* article */
.kb-article{max-width:760px;margin:0 auto;padding:clamp(40px,6vw,72px) clamp(20px,4vw,48px) 40px}
.kb-crumb{font-size:13px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:28px}
.kb-meta-line{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;font-size:13px;color:color-mix(in srgb,var(--color-text) 60%,transparent)}
.kb-article h2{font-family:var(--font-heading);font-weight:600;font-size:28px;letter-spacing:.02em;text-transform:uppercase;margin:44px 0 0}
.kb-article p,.kb-article li{font-size:16px;line-height:26px;color:color-mix(in srgb,var(--color-text) 86%,transparent)}
.kb-article p{margin:16px 0 0}
.kb-article ul,.kb-article ol{margin:16px 0 0;padding-left:22px}
.kb-article li{margin-top:8px}
.kb-box{position:relative;border:1px solid var(--color-divider);padding:22px 24px;margin-top:36px;background:color-mix(in srgb,var(--color-accent) 4%,transparent)}
.kb-box .label{display:block;font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--color-accent-700);margin-bottom:10px}
.kb-cta{position:relative;border:1px solid var(--color-divider);padding:32px;margin:56px 0 0;text-align:center}
.kb-cta h3{font-family:var(--font-heading);font-weight:600;font-size:26px;letter-spacing:.02em;text-transform:uppercase;margin:0}
.kb-cta p{margin:12px auto 20px;max-width:48ch}
.kb-btn{display:inline-block;padding:13px 26px;background:var(--color-accent);color:#fff !important;text-decoration:none;font-weight:600;font-size:14px;letter-spacing:.03em}
.kb-btn:hover{background:var(--color-accent-700)}
.kb-note{margin-top:28px;font-size:13px;color:color-mix(in srgb,var(--color-text) 55%,transparent)}
/* shared nav/footer */
.kb-nav{display:flex;align-items:center;gap:24px;padding:16px clamp(20px,4vw,48px);max-width:1240px;margin:0 auto;box-sizing:border-box}
.kb-brand{font-family:var(--font-heading);font-weight:600;font-size:20px;letter-spacing:.04em;text-transform:uppercase;color:var(--color-text);text-decoration:none;margin-right:auto}
.kb-brand small{font-family:var(--font-body);font-weight:500;font-size:11px;color:color-mix(in srgb,var(--color-text) 55%,transparent);letter-spacing:.1em;margin-left:8px}
.kb-nav a.lnk{font-size:14px;text-decoration:none;color:var(--color-text)}
.kb-nav a.lnk:hover{color:var(--color-accent-700)}
.kb-footer{border-top:1px solid var(--color-divider);margin-top:40px}
.kb-footer .kb-wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:28px;padding-bottom:36px;font-size:13px;color:color-mix(in srgb,var(--color-text) 60%,transparent)}
@media(max-width:700px){.kb-cards{grid-template-columns:1fr}}
/* ---- LOCKED interior template grammar (from industries/trades.html) ---- */
.sec{max-width:1240px;margin:0 auto;padding:clamp(44px,6vw,84px) clamp(20px,4vw,48px) clamp(36px,5vw,64px)}
.secband{border-top:1px solid var(--color-divider)}
.sec-kicker{display:block;font-size:13px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--color-accent-700);margin-bottom:12px}
.sec-rule{height:1px;border:0;background:var(--color-divider);margin:0 0 28px}
.sec h2{font-family:var(--font-heading);font-weight:600;font-size:clamp(34px,4.2vw,58px);line-height:1.05;letter-spacing:.01em;text-transform:uppercase;margin:0 0 18px}
.sec h2 em{font-style:normal;color:var(--color-accent-700)}
.sec .lead{font-size:16px;line-height:24px;max-width:58ch;color:color-mix(in srgb,var(--color-text) 78%,transparent)}
.panelgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:clamp(16px,2vw,24px);margin-top:34px}
.panel{position:relative;border:1px solid var(--color-divider);background:var(--color-bg);padding:24px 26px}
.panel i.c{position:absolute;width:9px;height:9px;border:1px solid var(--color-accent)}
.panel i.tl{top:-1px;left:-1px;border-right:0;border-bottom:0}.panel i.tr{top:-1px;right:-1px;border-left:0;border-bottom:0}
.panel i.bl{bottom:-1px;left:-1px;border-right:0;border-top:0}.panel i.br{bottom:-1px;right:-1px;border-left:0;border-top:0}
.panel h3{font-family:var(--font-heading);font-weight:600;font-size:19px;letter-spacing:.03em;text-transform:uppercase;margin:0 0 10px}
.panel p{font-size:14.5px;line-height:22px;margin:0;color:color-mix(in srgb,var(--color-text) 76%,transparent)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,64px);align-items:start}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;padding:26px 28px;margin-top:44px}
/* premium colour pass — match the landing page exactly (founder, 2026-08-19) */
.sec-kicker::before{content:"■";font-size:8px;vertical-align:3px;margin-right:9px;color:var(--color-accent)}
.sec h2,.panel h3{color:var(--color-text)}
.kb-btn{transition:background .15s ease;letter-spacing:.04em}
.kb-btn:hover{background:var(--color-accent-800,var(--color-accent-700))}
a{transition:color .12s ease}
.panel{transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.panelgrid .panel:hover{border-color:var(--color-accent);box-shadow:0 10px 28px color-mix(in srgb,var(--color-accent) 12%,transparent)}
.kb-chat .stamp{color:color-mix(in srgb,var(--color-text) 50%,transparent)}
::selection{background:color-mix(in srgb,var(--color-accent) 22%,transparent)}
/* colour truing vs the original front page (founder, 2026-08-19) */
.kb-chat .m{background:color-mix(in srgb,var(--color-text) 5%,transparent);border-color:color-mix(in srgb,var(--color-text) 14%,transparent)}
.kb-chat .m.her{background:color-mix(in srgb,var(--color-accent) 9%,transparent);border-color:var(--color-accent-300)}
/* THE LINING — the landing page's OWN corner marks, byte-for-byte from the
   design system (.blueprint > .corner). No approximations. */
.panel > i.c{position:absolute;width:11px;height:11px;border:0 !important;background:none;
  color:var(--color-text)}
.panel > i.c::before,.panel > i.c::after{content:"";position:absolute;background:currentColor}
.panel > i.c::before{left:5px;top:0;width:1px;height:100%}
.panel > i.c::after{top:5px;left:0;width:100%;height:1px}
.panel > i.c.tl{top:-6px;left:-6px}.panel > i.c.tr{top:-6px;right:-6px}
.panel > i.c.bl{bottom:-6px;left:-6px}.panel > i.c.br{bottom:-6px;right:-6px}
/* ---- interior premium pass: front-page grade, same blueprint voice ---- */
.kb-heroband{background-image:linear-gradient(color-mix(in srgb,var(--color-accent) 7%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--color-accent) 7%,transparent) 1px,transparent 1px);background-size:48px 48px;border-bottom:1px solid var(--color-divider)}
.kb-heroband .kb-article{padding-bottom:clamp(34px,5vw,56px)}
.kb-chat{position:relative;border:1px solid var(--color-divider);background:var(--color-bg);padding:20px 22px 24px;margin-top:20px}
.kb-chat .m{max-width:88%;padding:10px 14px;border:1px solid var(--color-divider);font-size:14.5px;line-height:21px;margin-top:12px;background:var(--color-bg)}
.kb-chat .m.her{margin-left:auto;background:color-mix(in srgb,var(--color-accent) 6%,transparent);border-color:var(--color-accent-300)}
.kb-chat .m b{display:block;font-size:10px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:color-mix(in srgb,var(--color-text) 55%,transparent);margin-bottom:4px}
.kb-chat .m.her b{color:var(--color-accent-700)}
.kb-chat .stamp{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:color-mix(in srgb,var(--color-text) 50%,transparent);text-align:center}
.kb-cta .kb-btn{position:relative}
.kb-article > h2{position:relative;padding-top:18px;border-top:1px solid var(--color-divider)}
.kb-article > h2::before{content:"■";color:var(--color-accent);font-size:9px;vertical-align:4px;margin-right:10px}