/* kb.css - knowledge base styling for kb.tristate.digital.
   Mirrors the parent site's dark palette (#0a1622 bg, #3ccfca teal, #19a5f0
   blue). ASCII only. The parent header brings its own CSS via chrome-header. */

:root{
  --kb-bg:#0a1622;
  --kb-panel:#0d1e30;
  --kb-panel2:#0b1a2b;
  --kb-border:rgba(122,213,255,.18);
  --kb-border-soft:rgba(255,255,255,.10);
  --kb-text:#e6eef8;
  --kb-muted:#9fb6cc;
  --kb-teal:#3ccfca;
  --kb-blue:#19a5f0;
}

body{
  background:var(--kb-bg);
  color:var(--kb-text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  margin:0;
  line-height:1.6;
}
a{color:var(--kb-blue);text-decoration:none;}
a:hover{color:var(--kb-teal);text-decoration:underline;}

.kb-shell{max-width:1080px;margin:0 auto;padding:0 20px 40px;}

.kb-ic{vertical-align:middle;}

/* Search band */
.kb-band{
  margin:28px 0 8px;
  background:linear-gradient(150deg,rgba(11,26,44,.95),rgba(4,11,20,.96));
  border:1px solid var(--kb-border);
  border-radius:16px;
  box-shadow:0 18px 46px rgba(0,0,0,.4);
}
.kb-band-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  padding:22px 24px;
}
.kb-band-title{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--kb-text);font-weight:800;font-size:1.15rem;letter-spacing:.01em;
  white-space:nowrap;
}
.kb-band-title:hover{color:#fff;text-decoration:none;}
.kb-band-title .kb-ic{color:var(--kb-teal);}
.kb-search{position:relative;flex:1 1 360px;display:flex;align-items:center;}
.kb-search-ic{position:absolute;left:14px;color:var(--kb-muted);pointer-events:none;}
#kb-q{
  width:100%;
  padding:13px 16px 13px 42px;
  background:rgba(4,12,22,.7);
  border:1px solid var(--kb-border-soft);
  border-radius:11px;
  color:var(--kb-text);
  font-size:1rem;
  outline:none;
}
#kb-q:focus{border-color:var(--kb-teal);box-shadow:0 0 0 3px rgba(60,207,202,.18);}
#kb-q::placeholder{color:var(--kb-muted);}

/* Breadcrumb */
.kb-crumbs{font-size:.85rem;color:var(--kb-muted);margin:14px 2px 0;}
.kb-crumbs a{color:var(--kb-muted);}
.kb-crumbs a:hover{color:var(--kb-teal);}
.kb-crumbs .kb-sep{opacity:.5;margin:0 2px;}
.kb-crumbs span[aria-current]{color:var(--kb-text);}

/* Search results overlay */
.kb-results{margin:16px 0 0;}
.kb-results[hidden]{display:none;}
.kb-result{
  display:block;padding:16px 18px;margin-bottom:10px;
  background:var(--kb-panel);
  border:1px solid var(--kb-border-soft);
  border-radius:12px;
}
.kb-result:hover{border-color:var(--kb-border);text-decoration:none;}
.kb-result .kb-r-cat{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:var(--kb-teal);font-weight:700;}
.kb-result .kb-r-title{display:block;color:var(--kb-text);font-weight:700;font-size:1.05rem;margin:3px 0;}
.kb-result .kb-r-sum{display:block;color:var(--kb-muted);font-size:.92rem;}
.kb-result mark{background:rgba(60,207,202,.28);color:#fff;border-radius:3px;padding:0 1px;}
.kb-noresults{color:var(--kb-muted);padding:18px 2px;}

/* Hero */
.kb-hero{padding:26px 2px 6px;}
.kb-hero h1{font-size:clamp(1.7rem,3.2vw,2.4rem);margin:0 0 8px;color:#fff;letter-spacing:-.02em;}
.kb-hero p{color:var(--kb-muted);max-width:62ch;margin:0;font-size:1.05rem;}

/* Category grid (home) */
.kb-cat-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));
  gap:20px;margin-top:24px;
}
.kb-cat-card{
  padding:22px 22px 14px;border-radius:14px;
  background:linear-gradient(150deg,rgba(11,26,44,.92),rgba(4,11,20,.95));
  border:1px solid var(--kb-border);
  box-shadow:0 14px 36px rgba(0,0,0,.34);
}
.kb-cat-card h2{margin:0 0 6px;font-size:1.2rem;}
.kb-cat-card h2 a{color:#fff;}
.kb-cat-card h2 a:hover{color:var(--kb-teal);text-decoration:none;}
.kb-cat-blurb{color:var(--kb-muted);font-size:.9rem;margin:0 0 12px;}
.kb-cat-list{list-style:none;margin:0;padding:0;}
.kb-cat-list li{margin:0 0 7px;padding-left:18px;position:relative;}
.kb-cat-list li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--kb-teal);opacity:.7;}

/* Category page index */
.kb-cat-head{padding:24px 2px 4px;}
.kb-cat-head h1{margin:0 0 6px;color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);}
.kb-cat-head p{color:var(--kb-muted);margin:0;max-width:62ch;}
.kb-article-index{list-style:none;margin:22px 0 0;padding:0;}
.kb-article-index li{margin:0 0 12px;}
.kb-article-index a{
  display:block;padding:16px 18px;border-radius:12px;
  background:var(--kb-panel);border:1px solid var(--kb-border-soft);
}
.kb-article-index a:hover{border-color:var(--kb-border);text-decoration:none;}
.kb-ai-title{display:block;color:var(--kb-text);font-weight:700;font-size:1.05rem;}
.kb-ai-sum{display:block;color:var(--kb-muted);font-size:.9rem;margin-top:3px;}

/* Article page */
.kb-article{max-width:760px;margin:8px 0 0;}
.kb-article-cat{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700;margin:18px 0 4px;}
.kb-article-cat a{color:var(--kb-teal);}
.kb-article h1{font-size:clamp(1.6rem,3vw,2.25rem);margin:0 0 16px;color:#fff;letter-spacing:-.02em;}
.kb-article-body{color:#dbe6f3;font-size:1.04rem;}
.kb-article-body h2{color:#fff;font-size:1.3rem;margin:26px 0 10px;}
.kb-article-body p{margin:0 0 14px;}
.kb-article-body ul,.kb-article-body ol{margin:0 0 14px;padding-left:24px;}
.kb-article-body li{margin:0 0 7px;}
.kb-article-body code{background:rgba(4,12,22,.7);border:1px solid var(--kb-border-soft);border-radius:5px;padding:1px 6px;font-size:.92em;}
.kb-article-body strong{color:#fff;}
.kb-rule{border:0;border-top:1px solid var(--kb-border-soft);margin:30px 0 18px;}
.kb-article-foot{color:var(--kb-muted);font-size:.95rem;}

/* On-page table of contents + crawlable sibling nav */
html{scroll-behavior:smooth;}
:target{scroll-margin-top:90px;}
.kb-toc{
  background:linear-gradient(150deg,rgba(11,26,44,.92),rgba(4,11,20,.95));
  border:1px solid var(--kb-border);border-radius:12px;
  padding:14px 20px;margin:0 0 24px;max-width:760px;
}
.kb-toc-h{margin:0 0 8px;font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700;color:var(--kb-teal);}
.kb-toc ul{list-style:none;margin:0;padding:0;}
.kb-toc li{margin:5px 0;padding-left:16px;position:relative;}
.kb-toc li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;border-radius:50%;background:var(--kb-teal);opacity:.7;}
.kb-toc-h3{margin-left:16px;font-size:.95em;}
.kb-toc a{color:var(--kb-text);}
.kb-toc a:hover{color:var(--kb-teal);text-decoration:none;}

.kb-more{max-width:760px;margin:30px 0 0;border-top:1px solid var(--kb-border-soft);padding-top:18px;}
.kb-more-h{margin:0 0 10px;font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;font-weight:700;color:var(--kb-teal);}
.kb-more ul{list-style:none;margin:0;padding:0;}
.kb-more li{margin:0 0 7px;padding-left:18px;position:relative;}
.kb-more li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;background:var(--kb-teal);opacity:.6;}
.kb-more li.cur::before{background:var(--kb-muted);}
.kb-more li.cur span{color:var(--kb-muted);font-weight:700;}
.kb-more a{color:var(--kb-blue);}
.kb-more a:hover{color:var(--kb-teal);}

/* Fallback header */
.kb-fallback-header{padding:16px 24px;border-bottom:1px solid var(--kb-border-soft);}
.kb-fallback-brand{color:#fff;font-weight:800;font-size:1.2rem;}

@media (max-width:560px){
  .kb-band-inner{padding:18px;}
  .kb-band-title{font-size:1.05rem;}
}