/* ════════════════════════════════════════════════════════════════════
   MARQEE — Knowledge Base styles · kb.css
   Loaded AFTER assets/app.css on every KB page (hub + 6 categories).
   Reuses app.css tokens (--aqua, --blue, --ink, --lt2, --lline, --lk2…).
   Never edits app.css; only adds .kb-* scoped classes.
═════════════════════════════════════════════════════════════════════ */

/* ── KB hero (dark, marquee motif) ───────────────────────────────── */
.kb-hero{position:relative;overflow:hidden;background:radial-gradient(120% 120% at 50% -20%,#1A47A0,transparent 58%),var(--ink);padding:150px 24px 76px;text-align:center}
.kb-hero .beams{-webkit-mask-image:linear-gradient(180deg,transparent 0,transparent 46%,#000 92%);mask-image:linear-gradient(180deg,transparent 0,transparent 46%,#000 92%);opacity:.7}
.kb-hero .kb-hero-in{position:relative;z-index:2;max-width:760px;margin:0 auto}
.kb-hero .eb{font-family:'Space Mono',monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--aqua-2);display:inline-flex;align-items:center;gap:9px;margin-bottom:22px}
.kb-hero .eb .b{width:7px;height:7px;border-radius:50%;background:var(--aqua-2);box-shadow:0 0 9px var(--aqua-2);animation:bulb 1.6s ease-in-out infinite;flex:0 0 auto}
.kb-hero h1{color:#fff;font-size:clamp(38px,6vw,72px);line-height:1;letter-spacing:-.04em}
.kb-hero h1 .gl{background:linear-gradient(95deg,#9FCBFF,#fff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.kb-hero p{color:rgba(255,255,255,.78);font-size:clamp(16px,1.6vw,19px);max-width:540px;margin:22px auto 0}

/* ── Big search bar ──────────────────────────────────────────────── */
.kb-search{position:relative;z-index:2;max-width:620px;margin:34px auto 0}
.kb-search form{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:8px 8px 8px 18px;transition:border-color .2s,background .2s;backdrop-filter:blur(6px)}
.kb-search form:focus-within{border-color:var(--aqua);background:rgba(255,255,255,.13)}
.kb-search .kb-sicon{width:20px;height:20px;flex:0 0 auto;stroke:var(--aqua-2);fill:none;stroke-width:2}
.kb-search input{flex:1;min-width:0;background:transparent;border:0;outline:0;color:#fff;font-family:'Inter',sans-serif;font-size:16px;padding:12px 0}
.kb-search input::placeholder{color:rgba(255,255,255,.55)}
.kb-search button{flex:0 0 auto;background:var(--aqua);color:#04101f;font-family:'Hanken Grotesk',sans-serif;font-weight:600;font-size:14.5px;border:0;border-radius:10px;padding:12px 18px;cursor:pointer;transition:background .2s,transform .15s}
.kb-search button:hover{background:var(--aqua-2);transform:translateY(-1px)}
.kb-search .kb-hint{margin-top:14px;font-family:'Space Mono',monospace;font-size:11.5px;letter-spacing:.04em;color:rgba(255,255,255,.5)}
.kb-search .kb-hint a{color:var(--aqua-2)}

/* Live search results dropdown (client-side filter) */
.kb-results{position:absolute;left:0;right:0;top:calc(100% + 10px);background:var(--lt);border:1px solid var(--lline);border-radius:14px;box-shadow:0 24px 60px rgba(5,8,15,.4);overflow:hidden;text-align:left;display:none;max-height:340px;overflow-y:auto}
.kb-results.show{display:block}
.kb-results a{display:block;padding:13px 18px;border-bottom:1px solid var(--lline);color:var(--lk);font-size:14.5px;transition:background .15s}
.kb-results a:last-child{border-bottom:0}
.kb-results a:hover,.kb-results a.kb-active{background:var(--tint)}
.kb-results a .kb-rcat{display:block;font-family:'Space Mono',monospace;font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-top:3px}
.kb-results .kb-empty{padding:18px;color:var(--lk2);font-size:14px}
.kb-results mark{background:rgba(77,162,255,.22);color:inherit;border-radius:3px;padding:0 1px}

/* ── Breadcrumb ──────────────────────────────────────────────────── */
.kb-crumb{background:var(--lt2);border-bottom:1px solid var(--lline);font-family:'Space Mono',monospace;font-size:12px;letter-spacing:.03em}
.kb-crumb .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:16px;padding-bottom:16px}
.kb-crumb a{color:var(--lk2);transition:color .15s}
.kb-crumb a:hover{color:var(--blue)}
.kb-crumb .kb-sep{color:var(--lk3);opacity:.6}
.kb-crumb [aria-current]{color:var(--lk);font-weight:600}

/* ── Category cards grid ─────────────────────────────────────────── */
.kb-cats{padding:74px 0 40px}
.kb-shead{max-width:640px;margin:0 0 38px}
.kb-shead .chip-mono{margin-bottom:16px}
.kb-shead h2{font-size:clamp(26px,3.4vw,38px);color:var(--lk);letter-spacing:-.03em}
.kb-shead p{margin-top:14px;color:var(--lk2);font-size:16px}
.kb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.kb-card{display:block;background:var(--lt);border:1px solid var(--lline);border-radius:16px;padding:26px 24px 24px;transition:transform .2s,box-shadow .2s,border-color .2s;position:relative}
.kb-card:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(5,8,15,.1);border-color:var(--aqua)}
.kb-card .kb-ci{width:46px;height:46px;border-radius:12px;background:var(--blue);display:grid;place-items:center;margin-bottom:18px;box-shadow:0 10px 26px rgba(46,107,255,.28)}
.kb-card .kb-ci svg{width:23px;height:23px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.kb-card h3{font-size:19px;color:var(--lk);letter-spacing:-.02em;margin-bottom:8px}
.kb-card p{color:var(--lk2);font-size:14.5px;line-height:1.55}
.kb-card .kb-count{display:inline-block;margin-top:16px;font-family:'Space Mono',monospace;font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--blue)}
.kb-card .kb-ar{position:absolute;top:26px;right:24px;width:30px;height:30px;border-radius:8px;border:1px solid var(--lline);display:grid;place-items:center;color:var(--blue);transition:background .2s,color .2s,border-color .2s}
.kb-card:hover .kb-ar{background:var(--blue);color:#fff;border-color:var(--blue)}
.kb-card .kb-ar svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.2}

/* ── Popular / article list ──────────────────────────────────────── */
.kb-pop{padding:34px 0 84px}
.kb-list{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;border-top:1px solid var(--lline)}
.kb-list.one-col{grid-template-columns:1fr}
.kb-item{display:flex;align-items:center;gap:14px;padding:18px 4px;border-bottom:1px solid var(--lline);color:var(--lk);transition:color .15s}
.kb-item:hover{color:var(--blue)}
.kb-item .kb-idot{width:8px;height:8px;border-radius:2px;background:var(--aqua);flex:0 0 auto;box-shadow:0 0 10px rgba(77,162,255,.6)}
.kb-item .kb-itx{flex:1;min-width:0}
.kb-item .kb-itx b{display:block;font-family:'Hanken Grotesk',sans-serif;font-weight:600;font-size:15.5px;line-height:1.3}
.kb-item .kb-itx span{display:block;font-size:13px;color:var(--lk2);margin-top:3px}
.kb-item:hover .kb-itx span{color:var(--lk2)}
.kb-item .kb-iar{flex:0 0 auto;color:var(--lk3);transition:transform .2s,color .2s}
.kb-item:hover .kb-iar{color:var(--blue);transform:translateX(3px)}

/* ── Article / Q&A layout (category pages) ───────────────────────── */
.kb-article{padding:54px 0 30px}
.kb-article .wrap{display:grid;grid-template-columns:230px 1fr;gap:54px;align-items:start}
.kb-toc{position:sticky;top:92px}
.kb-toc .kb-toclabel{font-family:'Space Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--lk3);margin-bottom:14px}
.kb-toc a{display:block;padding:7px 0 7px 14px;border-left:2px solid var(--lline);color:var(--lk2);font-size:14px;transition:color .15s,border-color .15s}
.kb-toc a:hover,.kb-toc a.kb-active{color:var(--blue);border-color:var(--blue)}
.kb-body{min-width:0;max-width:760px}
.kb-body h2{font-size:clamp(24px,3vw,32px);color:var(--lk);letter-spacing:-.03em;margin:0 0 8px;scroll-margin-top:90px}
.kb-body .kb-lede{color:var(--lk2);font-size:16px;margin-bottom:28px}
.kb-sec{padding:30px 0;border-top:1px solid var(--lline);scroll-margin-top:90px}
.kb-sec:first-of-type{border-top:0}
.kb-sec h3{font-size:21px;color:var(--lk);letter-spacing:-.02em;margin-bottom:12px}
.kb-sec p{color:var(--lk2);font-size:15.5px;line-height:1.7;margin:0 0 14px}
.kb-sec p:last-child{margin-bottom:0}
.kb-sec ul,.kb-sec ol{margin:0 0 14px;padding-left:0;list-style:none;display:grid;gap:10px}
.kb-sec li{position:relative;padding-left:24px;color:var(--lk2);font-size:15.5px;line-height:1.6}
.kb-sec ul li::before{content:"";position:absolute;left:3px;top:.62em;width:7px;height:7px;border-radius:2px;background:var(--aqua)}
.kb-sec ol{counter-reset:kb}
.kb-sec ol li{counter-increment:kb}
.kb-sec ol li::before{content:counter(kb);position:absolute;left:0;top:.05em;font-family:'Space Mono',monospace;font-size:12px;font-weight:700;color:var(--blue)}
.kb-sec b{color:var(--lk)}
.kb-sec a.kb-link{color:var(--blue);font-weight:600;border-bottom:1px solid rgba(46,107,255,.3)}
.kb-sec a.kb-link:hover{border-color:var(--blue)}
.kb-callout{background:var(--lt2);border:1px solid var(--lline);border-left:3px solid var(--blue);border-radius:10px;padding:16px 18px;font-size:14.5px;color:var(--lk2);margin:18px 0}
.kb-callout b{color:var(--lk)}

/* ── Accordion Q&A (reuses behavior pattern, kb-scoped styling) ──── */
.kb-acc{border-top:1px solid var(--lline)}
.kb-q{border-bottom:1px solid var(--lline)}
.kb-q button{width:100%;text-align:left;background:none;border:0;cursor:pointer;font-family:'Hanken Grotesk',sans-serif;font-weight:600;font-size:16.5px;color:var(--lk);padding:22px 40px 22px 0;position:relative;letter-spacing:-.01em}
.kb-q button::after{content:'';position:absolute;right:6px;top:28px;width:10px;height:10px;border-right:2.4px solid var(--blue);border-bottom:2.4px solid var(--blue);transform:rotate(45deg);transition:transform .3s}
.kb-q.open button::after{transform:rotate(-135deg)}
.kb-q .kb-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.kb-q.open .kb-a{max-height:680px}
.kb-q .kb-a-in{padding:0 0 22px}
.kb-q .kb-a-in p{color:var(--lk2);font-size:15px;line-height:1.7;margin:0 0 12px}
.kb-q .kb-a-in p:last-child{margin-bottom:0}
.kb-q .kb-a-in ul{margin:4px 0 12px;padding-left:0;list-style:none;display:grid;gap:8px}
.kb-q .kb-a-in li{position:relative;padding-left:22px;color:var(--lk2);font-size:15px}
.kb-q .kb-a-in li::before{content:"";position:absolute;left:3px;top:.6em;width:6px;height:6px;border-radius:2px;background:var(--aqua)}
.kb-q .kb-a-in a{color:var(--blue);font-weight:600}

/* ── "Was this helpful?" + chat CTA ──────────────────────────────── */
.kb-foot-cta{margin-top:46px;border-top:1px solid var(--lline);padding-top:34px;display:grid;gap:24px}
.kb-helpful{background:var(--lt2);border:1px solid var(--lline);border-radius:14px;padding:22px 24px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.kb-helpful .kb-hq{font-family:'Hanken Grotesk',sans-serif;font-weight:600;color:var(--lk);font-size:15.5px;flex:1;min-width:200px}
.kb-helpful .kb-hbtns{display:flex;gap:10px}
.kb-vote{display:inline-flex;align-items:center;gap:7px;background:var(--lt);border:1px solid var(--lline);border-radius:10px;padding:9px 16px;font-family:'Hanken Grotesk',sans-serif;font-weight:600;font-size:14px;color:var(--lk);cursor:pointer;transition:border-color .2s,color .2s,background .2s}
.kb-vote svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2}
.kb-vote:hover{border-color:var(--blue);color:var(--blue)}
.kb-vote.kb-picked{background:var(--blue);border-color:var(--blue);color:#fff}
.kb-thanks{font-size:14px;color:var(--lk2);display:none;width:100%}
.kb-thanks.show{display:block}

.kb-chat{position:relative;overflow:hidden;background:radial-gradient(130% 140% at 12% 0%,#1A47A0,transparent 60%),var(--ink);border-radius:18px;padding:36px 34px;color:#fff;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px}
.kb-chat .kb-chat-tx{max-width:520px;position:relative;z-index:2}
.kb-chat h3{color:#fff;font-size:22px;letter-spacing:-.02em;margin-bottom:8px}
.kb-chat p{color:rgba(255,255,255,.76);font-size:15px;margin:0}
.kb-chat .kb-chat-cta{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.kb-chat .btn-light{background:#fff;color:#06182f}
.kb-chat .btn-glass{background:rgba(8,14,30,.4);color:#fff;border:1px solid rgba(255,255,255,.3)}
.kb-chat .btn-glass:hover{background:rgba(8,14,30,.7)}

/* ── Inline contact CTA band for the hub ─────────────────────────── */
.kb-contact{padding:0 0 90px}
.kb-contact .kb-chat{margin:0}

/* ── Responsive (375 / 768 / 1024) ───────────────────────────────── */
@media(max-width:1024px){
  .kb-grid{grid-template-columns:repeat(2,1fr)}
  .kb-article .wrap{grid-template-columns:1fr;gap:32px}
  .kb-toc{position:static;display:flex;flex-wrap:wrap;gap:6px}
  .kb-toc .kb-toclabel{width:100%}
  .kb-toc a{border-left:0;border-bottom:2px solid var(--lline);padding:7px 12px}
}
@media(max-width:768px){
  .kb-hero{padding:120px 24px 60px}
  .kb-list{grid-template-columns:1fr;gap:0}
}
@media(max-width:520px){
  .kb-grid{grid-template-columns:1fr}
  .kb-search form{flex-wrap:wrap;padding:10px}
  .kb-search input{padding:8px 6px;width:100%}
  .kb-search button{width:100%}
  .kb-chat{padding:28px 22px}
  .kb-helpful{flex-direction:column;align-items:flex-start}
}