/* BawtHub Architecture — shared stylesheet (v3: liquid nav, main-page feel) */
:root{
  --bg-0:#050a13;
  --bg-1:#07111f;
  --bg-2:#0c1830;
  --panel:rgba(12,22,40,.72);
  --panel-2:rgba(255,255,255,.04);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#ecf4ff;
  --muted:#9cb0cb;
  --dim:#6b809e;
  --violet:#8b5cf6;
  --cyan:#4fd1ff;
  --teal:#4fffd1;
  --pink:#ff63d8;
  --orange:#ff8b4f;
  --gold:#ffd24f;
  --green:#65e89b;
  --red:#ff6f7d;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"JetBrains Mono",monospace;

  --top-h:60px;
  --rail-h:52px;
  --content-w:880px;
  --wide-w:1200px;
  --r-card:14px;
  --r-pill:999px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:140px}
html,body{margin:0;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-size:15.5px}
body{
  min-height:100vh;
  background:
    radial-gradient(1200px 720px at 80% -10%, #1a2750 0%, transparent 55%),
    radial-gradient(900px 560px at 0% 0%, #2a1758 0%, transparent 60%),
    linear-gradient(180deg, #0a1322 0%, #050a13 60%);
  overflow-x:hidden;
}
/* layered background textures from the main page */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.8) .5px,transparent .5px);
  background-size:14px 14px;
  opacity:.05;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.5),rgba(0,0,0,.05));
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 20%, #000 30%, transparent 75%);
}
a{color:inherit;text-decoration:none}
::selection{background:rgba(139,92,246,.55);color:#fff}

/* ============ TOP BAR (minimal — no popups) ============ */
.topbar{
  position:fixed;top:0;left:0;right:0;height:var(--top-h);z-index:60;
  display:flex;align-items:center;gap:6px;padding:0 24px;
  background:rgba(7,14,26,.55);backdrop-filter:blur(22px) saturate(1.3);-webkit-backdrop-filter:blur(22px) saturate(1.3);
  border-bottom:1px solid var(--line);
}
.topbar .brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:15.5px;letter-spacing:.005em;color:var(--text)}
.topbar .brand .logo{width:32px;height:32px;border-radius:10px;background:conic-gradient(from 220deg,var(--violet),var(--cyan),var(--teal),var(--violet));position:relative;display:grid;place-items:center;box-shadow:0 6px 20px rgba(139,92,246,.4)}
.topbar .brand .logo::after{content:"";position:absolute;inset:3px;border-radius:7px;background:#0a1322}
.topbar .brand .logo span{position:relative;z-index:1;font-weight:800;font-size:13px}

/* Breadcrumb pill — replaces section dropdowns. Liquid, no popup. */
.bcrumb{
  display:inline-flex;align-items:center;gap:10px;margin-left:18px;
  padding:7px 14px 7px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.bcrumb:hover{background:rgba(255,255,255,.08);border-color:var(--line-strong);color:var(--text)}
.bcrumb .crumb-sep{color:var(--dim);font-size:11px}
.bcrumb .crumb-here{color:var(--text);font-weight:500}
.bcrumb .crumb-section{position:relative}
.bcrumb .crumb-section::after{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--accent,var(--cyan));margin-left:8px;box-shadow:0 0 8px var(--accent,var(--cyan));vertical-align:middle}

.topbar .right{margin-left:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.topbar .right .ghost{padding:7px 12px;border-radius:10px;color:var(--muted);transition:color .15s,background .15s;font-size:13px;display:inline-flex;align-items:center;gap:6px}
.topbar .right .ghost:hover{color:var(--text);background:rgba(255,255,255,.05)}
.topbar .right .ghost kbd{font-family:var(--mono);font-size:10.5px;padding:2px 6px;border-radius:5px;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--muted)}
.topbar .right .cta{padding:8px 16px;border-radius:var(--r-pill);background:linear-gradient(135deg,rgba(139,92,246,.95),rgba(79,209,255,.95));color:#fff;font-weight:600;font-size:13px;box-shadow:0 6px 18px rgba(139,92,246,.32);transition:transform .15s,box-shadow .15s}
.topbar .right .cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(139,92,246,.42)}

/* ============ SECTION RAIL (liquid horizontal nav of siblings) ============ */
.rail{
  position:fixed;top:var(--top-h);left:0;right:0;height:var(--rail-h);z-index:50;
  background:rgba(7,14,26,.55);backdrop-filter:blur(22px) saturate(1.3);-webkit-backdrop-filter:blur(22px) saturate(1.3);
  border-bottom:1px solid var(--line);
}
.rail-inner{
  height:100%;max-width:var(--wide-w);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:6px;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail-inner::-webkit-scrollbar{display:none}
.rail .rail-label{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;color:var(--dim);letter-spacing:.14em;text-transform:uppercase;padding-right:10px;border-right:1px solid var(--line);margin-right:8px;flex-shrink:0;line-height:1}
.rail .rail-label::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent,var(--cyan));box-shadow:0 0 10px var(--accent,var(--cyan))}
.rail a.r-item{
  position:relative;padding:8px 14px;border-radius:var(--r-pill);
  font-size:13px;color:var(--muted);white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
  flex-shrink:0;
}
.rail a.r-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.rail a.r-item.active{color:var(--text);font-weight:500;background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(79,209,255,.14));border:1px solid rgba(139,92,246,.32);padding:7px 13px}
.rail a.r-item.soon{opacity:.55;cursor:default}
.rail a.r-item.soon::after{content:"soon";margin-left:6px;font-size:9.5px;padding:1px 6px;border-radius:999px;background:rgba(255,210,79,.14);color:var(--gold);font-weight:700;letter-spacing:.06em;text-transform:uppercase;vertical-align:middle}
.rail a.r-item .r-num{font-family:var(--mono);font-size:10.5px;color:var(--dim);margin-right:8px;letter-spacing:.04em}
.rail a.r-item.active .r-num{color:var(--cyan)}
.rail .rail-jump{margin-left:auto;display:inline-flex;gap:6px;font-size:11.5px;color:var(--dim);flex-shrink:0}
.rail .rail-jump a{padding:6px 10px;border-radius:8px;color:var(--muted);transition:color .15s,background .15s}
.rail .rail-jump a:hover{color:var(--text);background:rgba(255,255,255,.05)}

/* ============ MAIN SHELL ============ */
main.shell{
  max-width:var(--content-w);
  margin:0 auto;
  padding:calc(var(--top-h) + var(--rail-h) + 56px) 28px 120px;
  position:relative;
  animation:fadeIn .4s var(--ease) both;
}
main.shell.wide{max-width:var(--wide-w)}
main.shell.no-rail{padding-top:calc(var(--top-h) + 56px)}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* HERO (matches main page typography) */
.page-head{margin-bottom:48px;max-width:880px}
.kicker{font-size:12px;color:var(--cyan);font-weight:700;letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px;display:inline-flex;align-items:center;gap:8px}
.kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
/* hero h1: white fallback ensures readability even if dark-mode/force-color
   strips the gradient text-fill trick; the gradient layer is purely additive */
h1.page-title{color:#fff;font-size:clamp(36px,5.6vw,68px);font-weight:700;line-height:1.04;letter-spacing:-.035em;margin:0 0 22px;background:linear-gradient(180deg,#fff 30%,#c0d2eb);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
h1.page-title em{font-style:normal;color:#a8bbdd;background:linear-gradient(120deg,var(--cyan),var(--violet) 55%,var(--pink));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.lede{color:#cdd9eb;font-size:19px;line-height:1.55;margin:0 0 8px;max-width:720px}
.meta{display:flex;flex-wrap:wrap;gap:22px;font-size:12.5px;color:var(--dim);margin-top:26px;padding-top:20px;border-top:1px solid var(--line)}
.meta span b{color:var(--muted);font-weight:600}

h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.025em;margin:72px 0 16px;color:#fff;line-height:1.15}
h2 em{font-style:normal;color:var(--cyan);background:linear-gradient(120deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
h2 .num{font-family:var(--mono);font-size:14px;color:var(--cyan);font-weight:600;letter-spacing:.04em;margin-right:14px;vertical-align:middle;padding:3px 9px;border-radius:8px;background:rgba(79,209,255,.08);border:1px solid rgba(79,209,255,.22)}
h3{font-size:21px;font-weight:600;letter-spacing:-.01em;margin:40px 0 12px;color:#fff}
h4{font-size:13px;font-weight:700;margin:24px 0 8px;color:#a8bbdd;text-transform:uppercase;letter-spacing:.12em}
p{margin:0 0 16px;color:#cdd9eb;font-size:16px;line-height:1.72}
p b{color:#fff;font-weight:600}
p em{color:var(--cyan);font-style:normal;font-weight:500}

ul,ol{margin:0 0 18px;padding:0 0 0 22px;color:#cdd9eb;font-size:16px;line-height:1.7}
ul li,ol li{margin:0 0 10px}
ul li::marker{color:var(--violet)}
ol li::marker{color:var(--cyan);font-weight:600}

code{font-family:var(--mono);font-size:13px;background:rgba(0,0,0,.45);padding:2px 7px;border-radius:5px;color:#e2ecff;border:1px solid var(--line);white-space:nowrap}
pre{font-family:var(--mono);font-size:13px;background:rgba(0,0,0,.55);padding:18px 20px;border-radius:14px;border:1px solid var(--line);color:#dde7f7;line-height:1.6;overflow-x:auto;margin:0 0 22px}
pre code{background:none;padding:0;border:none;font-size:inherit}

blockquote{margin:24px 0;padding:14px 22px;border-left:3px solid var(--violet);background:rgba(139,92,246,.07);border-radius:0 12px 12px 0;color:#dde7f7;font-style:italic}

/* Glass + panel */
.glass{background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 24px 80px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.03)}
.panel{padding:28px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));margin:28px 0}

/* Callouts */
.callout{padding:16px 20px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.025);margin:24px 0;display:grid;grid-template-columns:24px 1fr;gap:16px}
.callout .ic{font-size:18px;line-height:1.4}
.callout strong{display:block;color:#fff;font-weight:600;margin-bottom:4px}
.callout p{margin:0;color:#cdd9eb;font-size:14.5px}
.callout.warn{background:rgba(255,210,79,.06);border-color:rgba(255,210,79,.25)}
.callout.warn strong{color:var(--gold)}
.callout.spec{background:rgba(79,209,255,.06);border-color:rgba(79,209,255,.25)}
.callout.spec strong{color:var(--cyan)}
.callout.stale{background:rgba(255,111,125,.06);border-color:rgba(255,111,125,.25)}
.callout.stale strong{color:var(--red)}

/* Tables */
table.spec{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:14.5px}
table.spec th,table.spec td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.spec th{color:var(--dim);font-weight:600;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;border-bottom-color:var(--line-strong)}
table.spec td{color:#dde7f7}
table.spec td code{font-size:12.5px}
table.spec tr:last-child td{border-bottom:none}

/* Diagrams */
.diagram{padding:28px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));margin:28px 0;backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 16px 40px rgba(0,0,0,.32)}
.diagram-title{font-size:11px;color:var(--dim);font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.diagram-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}

/* Screenshots */
.shot{margin:28px 0;border-radius:18px;border:1px solid var(--line);overflow:hidden;background:rgba(0,0,0,.4);box-shadow:0 24px 60px rgba(0,0,0,.45)}
.shot img{display:block;width:100%;height:auto}
.shot .caption{padding:14px 20px;font-size:13.5px;color:var(--muted);background:rgba(255,255,255,.03);border-top:1px solid var(--line)}
.shot .caption b{color:#fff;font-weight:600}

/* File reference cards */
.files{display:grid;grid-template-columns:1fr;gap:10px;margin:20px 0}
.fileref{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;padding:14px 18px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.025);font-size:14px;transition:border-color .15s,background .15s}
.fileref:hover{border-color:var(--line-strong);background:rgba(255,255,255,.04)}
.fileref code{font-family:var(--mono);font-size:12.5px;color:var(--cyan);background:none;border:none;padding:0;white-space:nowrap;font-weight:500}
.fileref .desc{color:var(--muted);font-size:13.5px;line-height:1.5}
.fileref .desc b{color:#fff;font-weight:600}

/* Pills */
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11.5px;font-weight:600;background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--line);letter-spacing:.02em;vertical-align:middle}
.pill.violet{background:rgba(139,92,246,.16);color:#d9c8ff;border-color:rgba(139,92,246,.32)}
.pill.cyan{background:rgba(79,209,255,.16);color:#bcefff;border-color:rgba(79,209,255,.32)}
.pill.teal{background:rgba(79,255,209,.14);color:#c4fff0;border-color:rgba(79,255,209,.3)}
.pill.pink{background:rgba(255,99,216,.14);color:#ffd3f7;border-color:rgba(255,99,216,.3)}
.pill.green{background:rgba(101,232,155,.13);color:#a8f1c5;border-color:rgba(101,232,155,.3)}
.pill.gold{background:rgba(255,210,79,.14);color:#fff0bf;border-color:rgba(255,210,79,.3)}
.pill.red{background:rgba(255,111,125,.13);color:#ffc0c7;border-color:rgba(255,111,125,.3)}

/* Sysmap */
.sysmap{padding:34px;border-radius:24px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));margin:32px 0;backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.04),0 24px 60px rgba(0,0,0,.35)}
.sysmap .layer-row{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:center;padding:18px 22px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.03);margin-bottom:12px;transition:border-color .15s,background .15s}
.sysmap .layer-row:hover{border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.sysmap .layer-row .lbl{font-size:11.5px;color:var(--accent,var(--violet));font-weight:700;letter-spacing:.14em;text-transform:uppercase;display:flex;align-items:center;gap:10px}
.sysmap .layer-row .lbl::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--accent,var(--violet));box-shadow:0 0 14px var(--accent,var(--violet))}
.sysmap .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px}
.sysmap .arrow{text-align:center;font-size:14px;color:var(--dim);margin:4px 0;letter-spacing:.5em}
.sysmap a.card{padding:14px 16px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.25);display:block;transition:transform .15s,border-color .15s,background .15s;color:inherit;position:relative}
.sysmap a.card:hover{transform:translateY(-1px);border-color:var(--line-strong);background:rgba(0,0,0,.4)}
.sysmap a.card .t{font-size:14px;font-weight:600;color:#fff;margin-bottom:4px}
.sysmap a.card .d{font-size:12px;color:var(--muted);line-height:1.5}

/* Section card grid */
.sectionidx{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:28px 0}
.sectionidx a{padding:22px;border-radius:18px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));display:block;transition:transform .15s,border-color .15s,background .15s;position:relative;overflow:hidden}
.sectionidx a::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 100% 0%,var(--accent,var(--cyan)),transparent 60%);opacity:0;transition:opacity .25s var(--ease);pointer-events:none}
.sectionidx a:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:0 14px 36px rgba(0,0,0,.4)}
.sectionidx a:hover::before{opacity:.18}
.sectionidx a .t{font-size:17px;font-weight:600;color:#fff;margin-bottom:6px;display:flex;align-items:center;gap:8px;position:relative}
.sectionidx a .t .ar{color:var(--cyan);transition:transform .15s}
.sectionidx a:hover .t .ar{transform:translateX(4px)}
.sectionidx a .d{font-size:14px;color:var(--muted);line-height:1.55;position:relative}

/* Prev/next */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:90px 0 0;padding-top:36px;border-top:1px solid var(--line)}
.prevnext a{padding:18px 22px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.025);transition:border-color .15s,background .15s,transform .15s}
.prevnext a:hover{border-color:var(--line-strong);background:rgba(255,255,255,.05);transform:translateY(-1px)}
.prevnext .lbl{font-size:11px;color:var(--dim);font-weight:700;letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:6px}
.prevnext .t{font-size:15.5px;font-weight:600;color:#fff}
.prevnext .next{text-align:right}
.prevnext .next .t::after{content:" →";color:var(--cyan)}
.prevnext .prev .t::before{content:"← ";color:var(--cyan)}
.prevnext > div.placeholder{visibility:hidden}

.pagefoot{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:var(--dim);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.pagefoot a{color:var(--cyan)}
.pagefoot code{font-size:12px;color:var(--muted)}

/* ============ COMMAND PALETTE ============ */
.cmdk-backdrop{position:fixed;inset:0;background:rgba(3,7,16,.7);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:80;opacity:0;pointer-events:none;visibility:hidden;transition:opacity .18s var(--ease),visibility .18s}
.cmdk-backdrop.open{opacity:1;pointer-events:auto;visibility:visible}
.cmdk{
  position:fixed;top:14vh;left:50%;transform:translateX(-50%) translateY(-8px);
  width:min(680px,calc(100vw - 32px));z-index:81;
  background:rgba(10,18,32,.95);backdrop-filter:blur(28px) saturate(1.4);-webkit-backdrop-filter:blur(28px) saturate(1.4);
  border:1px solid var(--line-strong);border-radius:20px;
  box-shadow:0 30px 80px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
  overflow:hidden;
}
.cmdk.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.cmdk .search{display:flex;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--line)}
.cmdk .search .ic{color:var(--dim);font-size:16px}
.cmdk .search input{flex:1;background:none;border:none;outline:none;font-family:inherit;font-size:15px;color:var(--text);padding:0}
.cmdk .search input::placeholder{color:var(--dim)}
.cmdk .search kbd{font-family:var(--mono);font-size:11px;padding:3px 8px;border-radius:6px;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--muted)}
.cmdk .list{max-height:55vh;overflow-y:auto;padding:10px}
.cmdk .group-label{font-size:10.5px;color:var(--dim);font-weight:700;letter-spacing:.16em;text-transform:uppercase;padding:10px 12px 6px}
.cmdk a.it{display:grid;grid-template-columns:32px 1fr auto;gap:12px;align-items:center;padding:11px 12px;border-radius:11px;color:var(--muted);transition:background .12s,color .12s}
.cmdk a.it:hover,.cmdk a.it.active{background:rgba(255,255,255,.06);color:var(--text)}
.cmdk a.it .ic{font-size:14px;color:var(--cyan);width:30px;height:30px;display:grid;place-items:center;background:rgba(79,209,255,.08);border:1px solid rgba(79,209,255,.22);border-radius:9px}
.cmdk a.it .nm{font-size:14px;font-weight:500;color:#fff}
.cmdk a.it .ds{font-size:12.5px;color:var(--muted);line-height:1.4;margin-top:2px}
.cmdk a.it .arrow{color:var(--dim);font-size:13px;opacity:0;transition:opacity .12s,transform .12s}
.cmdk a.it:hover .arrow,.cmdk a.it.active .arrow{opacity:1;transform:translateX(2px)}
.cmdk a.it.soon{opacity:.5}
.cmdk a.it.soon .nm::after{content:" · soon";color:var(--gold);font-weight:600;font-size:11px;letter-spacing:.04em}
.cmdk .empty{padding:24px 16px;text-align:center;color:var(--dim);font-size:13.5px}
.cmdk .foot{display:flex;justify-content:space-between;padding:12px 18px;border-top:1px solid var(--line);font-size:11.5px;color:var(--dim)}
.cmdk .foot kbd{font-family:var(--mono);font-size:10px;padding:2px 6px;border-radius:5px;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--muted);margin:0 4px}

/* Toast */
.toast{position:fixed;bottom:32px;left:50%;transform:translateX(-50%) translateY(20px);padding:14px 22px;border-radius:14px;background:rgba(10,18,32,.95);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--line-strong);color:var(--text);font-size:14px;display:flex;align-items:center;gap:10px;opacity:0;pointer-events:none;z-index:90;transition:opacity .2s var(--ease),transform .2s var(--ease);box-shadow:0 20px 50px rgba(0,0,0,.5)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast .ic{color:var(--gold);font-size:16px}

/* ============ CHAT-PAGE MOCKUP COMPONENTS ============ */
.chat-frame{
  border-radius:22px;overflow:hidden;border:1px solid var(--line);
  background:radial-gradient(circle at 80% 0%,rgba(79,209,255,.16),transparent 35%),radial-gradient(circle at 0% 100%,rgba(139,92,246,.22),transparent 38%),rgba(10,18,32,.85);
  box-shadow:0 28px 80px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.05);
}
.chat-frame .chat-head{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line);background:rgba(0,0,0,.2)}
.chat-frame .chat-head .lhs{display:flex;align-items:center;gap:12px}
.chat-frame .chat-head .lhs .dots{display:flex;gap:7px}
.chat-frame .chat-head .lhs .dots span{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.16)}
.chat-frame .chat-head .lhs .dots span:nth-child(1){background:rgba(255,99,125,.7)}
.chat-frame .chat-head .lhs .dots span:nth-child(2){background:rgba(255,210,79,.7)}
.chat-frame .chat-head .lhs .dots span:nth-child(3){background:rgba(101,232,155,.7)}
.chat-frame .chat-head .lhs .title{font-size:13px;color:var(--muted);font-weight:500;margin-left:6px}
.chat-frame .chat-head .lhs .title b{color:var(--text)}
.chat-frame .chat-head .rhs{font-size:11.5px;color:var(--dim);font-family:var(--mono)}
.chat-frame .chat-body{padding:22px;display:grid;gap:16px;font-size:14.5px}

/* Messages */
.msg{display:grid;grid-template-columns:36px 1fr;gap:14px;align-items:start}
.msg .ava{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-weight:700;font-size:14px;color:#fff;letter-spacing:.02em;flex-shrink:0;box-shadow:0 4px 14px rgba(0,0,0,.4)}
.msg .ava.you{background:linear-gradient(135deg,#4a5568,#2d3748);color:#cbd5e0}
.msg .ava.loopy{background:linear-gradient(135deg,var(--cyan),#0ea5e9)}
.msg .ava.vex{background:linear-gradient(135deg,var(--pink),#a21caf)}
.msg .ava.snark{background:linear-gradient(135deg,var(--violet),#7c3aed)}
.msg .ava.caid{background:linear-gradient(135deg,var(--teal),#10b981);color:#0a1322}
.msg .who{color:var(--dim);font-size:12.5px;margin-bottom:6px;font-weight:500}
.msg .who b{color:var(--text);font-weight:600}
.msg .who .pill{display:inline-flex;align-items:center;gap:5px;padding:1px 8px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);font-size:11px;margin-left:8px;color:var(--muted)}
.msg .bubble{color:#dde7f7;line-height:1.6}
.msg .bubble code{font-size:12.5px}

/* Tool call rendering — the heart of the chat page */
.tc{margin-top:10px;border-radius:14px;border:1px solid var(--line);background:rgba(0,0,0,.4);overflow:hidden;font-family:var(--mono);font-size:12.5px;color:#b6c8e2}
.tc + .tc{margin-top:10px}
.tc-head{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.tc-head .tc-status{width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;flex-shrink:0}
.tc-head .tc-status.ok{background:rgba(101,232,155,.15);color:var(--green);border:1px solid rgba(101,232,155,.3)}
.tc-head .tc-status.run{background:rgba(255,210,79,.12);color:var(--gold);border:1px solid rgba(255,210,79,.28);animation:pulse 1.4s ease-in-out infinite}
.tc-head .tc-status.err{background:rgba(255,111,125,.12);color:var(--red);border:1px solid rgba(255,111,125,.3)}
@keyframes pulse{0%,100%{opacity:.5;transform:scale(.92)}50%{opacity:1;transform:scale(1)}}
.tc-head .tc-kind{padding:2px 9px;border-radius:6px;font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;flex-shrink:0}
.tc-head .tc-kind.bash{background:rgba(101,232,155,.13);color:var(--green);border:1px solid rgba(101,232,155,.3)}
.tc-head .tc-kind.edit{background:rgba(255,210,79,.14);color:var(--gold);border:1px solid rgba(255,210,79,.3)}
.tc-head .tc-kind.read{background:rgba(79,209,255,.14);color:var(--cyan);border:1px solid rgba(79,209,255,.3)}
.tc-head .tc-kind.search{background:rgba(139,92,246,.18);color:#d9c8ff;border:1px solid rgba(139,92,246,.32)}
.tc-head .tc-kind.mcp{background:rgba(255,99,216,.14);color:#ffd3f7;border:1px solid rgba(255,99,216,.3)}
.tc-head .tc-kind.ssh{background:rgba(255,139,79,.14);color:#ffb98a;border:1px solid rgba(255,139,79,.3)}
.tc-head .tc-cmd{flex:1;color:#dde7f7;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tc-head .tc-cmd b{color:#fff;font-weight:600}
.tc-head .tc-size{font-size:11px;color:var(--dim);flex-shrink:0}
.tc-head .tc-chev{color:var(--dim);font-size:11px;transition:transform .2s;flex-shrink:0}
.tc.collapsed .tc-chev{transform:rotate(-90deg)}
.tc-body{padding:14px 18px;color:#dde7f7;line-height:1.5;white-space:pre-wrap;word-break:break-word;max-height:300px;overflow-y:auto}
.tc.collapsed .tc-body{display:none}

.tc-body.terminal{background:#000;color:#dde7f7;font-family:var(--mono);font-size:12px;padding:14px 16px}
.tc-body.terminal .prompt{color:var(--green)}
.tc-body.terminal .out{color:#cdd9eb}
.tc-body.terminal .dim{color:var(--dim)}

.tc-body.diff{padding:0}
.tc-body.diff .diff-line{display:flex;padding:0 14px;line-height:1.55;border-left:3px solid transparent}
.tc-body.diff .diff-line.add{background:rgba(101,232,155,.08);border-left-color:rgba(101,232,155,.5);color:#c1f0d4}
.tc-body.diff .diff-line.rm{background:rgba(255,111,125,.08);border-left-color:rgba(255,111,125,.5);color:#f7b8c1}
.tc-body.diff .diff-line.ctx{color:#9eb1ce}
.tc-body.diff .diff-line .mark{width:14px;flex-shrink:0;color:var(--dim);text-align:center}
.tc-body.diff .diff-line.add .mark{color:var(--green)}
.tc-body.diff .diff-line.rm .mark{color:var(--red)}
.tc-body.diff .diff-line .code{flex:1;white-space:pre;font-family:var(--mono);font-size:12px}
.tc-body.diff .diff-meta{padding:8px 14px;font-size:11px;color:var(--dim);background:rgba(255,255,255,.02);border-bottom:1px solid var(--line)}

.tc.mcp .tc-head .tc-cmd{display:flex;align-items:center;gap:10px}
.tc.mcp .tc-cmd .mcp-name{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:8px;background:rgba(255,99,216,.14);color:#ffd3f7;border:1px solid rgba(255,99,216,.32);font-size:11.5px;font-weight:600}
.tc.mcp .tc-cmd .mcp-name::before{content:"⌬";font-weight:400}
.tc.mcp .tc-cmd .mcp-args{color:var(--dim);font-size:11.5px}

.tc.ssh .tc-head .tc-cmd{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.tc.ssh .tc-cmd .ssh-host{padding:2px 8px;border-radius:6px;background:rgba(255,139,79,.14);color:#ffb98a;border:1px solid rgba(255,139,79,.3);font-size:11.5px;font-weight:600}
.tc.ssh .tc-cmd .ssh-arrow{color:var(--dim)}
.tc.ssh .tc-cmd .ssh-inner{color:#dde7f7;font-size:12.5px}

.tc-group{margin-top:10px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.025);overflow:hidden}
.tc-group .tc-group-head{display:flex;align-items:center;gap:10px;padding:11px 16px;font-size:12.5px;color:var(--muted);background:rgba(255,255,255,.02);border-bottom:1px solid var(--line)}
.tc-group .tc-group-head .count{display:inline-flex;align-items:center;justify-content:center;width:24px;height:20px;border-radius:6px;background:rgba(139,92,246,.18);color:#d9c8ff;font-weight:700;font-size:11px}
.tc-group .tc-group-head .summary{flex:1;color:#dde7f7;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:Inter,sans-serif}
.tc-group .tc-group-head .summary b{color:#fff}
.tc-group .tc-children{padding:12px}
.tc-group .tc-children .tc{margin-top:0;margin-bottom:8px}
.tc-group .tc-children .tc:last-child{margin-bottom:0}

.typing{display:inline-flex;gap:4px;padding:6px 0;align-items:center}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
.typing span:nth-child(2){animation-delay:.2s}
.typing span:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}

.hero-split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;padding:24px 0 64px}
@media(max-width:980px){.hero-split{grid-template-columns:1fr;gap:40px}}

.tour-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin:32px 0}
.tour-card{padding:24px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));position:relative;overflow:hidden}
.tour-card::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 100% 0%,var(--accent,var(--cyan)),transparent 55%);opacity:.18;pointer-events:none}
.tour-card .tc-icon{font-family:var(--mono);font-size:11px;color:var(--accent,var(--cyan));font-weight:700;letter-spacing:.1em;text-transform:uppercase;margin-bottom:10px;position:relative}
.tour-card .tc-title{font-size:18px;font-weight:600;color:#fff;margin:0 0 8px;position:relative}
.tour-card .tc-desc{font-size:14px;color:var(--muted);line-height:1.55;margin:0;position:relative}

/* Responsive */
@media(max-width:880px){
  main.shell{padding:calc(var(--top-h) + var(--rail-h) + 32px) 18px 80px}
  main.shell.no-rail{padding-top:calc(var(--top-h) + 32px)}
  /* Bigger jump down on font sizes for narrow phones */
  h1.page-title{font-size:34px;line-height:1.08;letter-spacing:-.03em}
  h2{font-size:24px;margin:56px 0 14px}
  h2 .num{font-size:12px;padding:2px 7px;margin-right:10px}
  h3{font-size:19px}
  p,ul,ol{font-size:15.5px;line-height:1.65}
  .lede{font-size:17px;line-height:1.5}
  /* Body text width should never exceed viewport */
  p,ul,ol,h2,h3,h4,.callout,.diagram,.shot,.files,.fileref,.sectionidx,table.spec,blockquote,.panel,.glass,.chat-frame,.sysmap,pre{max-width:100%}
  /* Tables scroll horizontally on overflow */
  table.spec{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  table.spec thead,table.spec tbody,table.spec tr{min-width:100%}
  /* Pre/code blocks must not blow out the viewport */
  pre{font-size:12px;padding:14px 16px;border-radius:12px}
  /* Topbar — tighten everything */
  .topbar{padding:0 14px;gap:4px}
  .topbar .brand{font-size:14px;gap:8px}
  .topbar .brand .logo{width:28px;height:28px}
  .topbar .right{gap:4px}
  .topbar .right .ghost{padding:7px 10px;font-size:12px}
  .topbar .right .ghost kbd{display:none}              /* "⌘K" hint hidden on phones */
  .topbar .right .ghost.source-hide-mobile{display:none}
  .topbar .right .cta{padding:7px 12px;font-size:12px}
  /* Section rail — keep horizontal scroll, tighten padding */
  .rail-inner{padding:0 14px;gap:4px}
  .rail .rail-label{font-size:10.5px;padding-right:8px;margin-right:4px}
  .rail a.r-item{padding:7px 11px;font-size:12.5px}
  .rail a.r-item.active{padding:6px 10px}
  .rail a.r-item .r-num{font-size:9.5px;margin-right:6px}
  .rail .rail-jump{display:none}                       /* "System map" jump hidden on phones */
  /* Diagrams: stack everything vertically */
  .sysmap{padding:18px;border-radius:18px}
  .sysmap .layer-row{grid-template-columns:1fr;gap:10px;padding:14px 16px}
  .sysmap .row{grid-template-columns:1fr;gap:8px}
  .diagram{padding:18px;border-radius:16px}
  .diagram > div[style*="grid-template-columns"]{grid-template-columns:1fr !important;gap:10px !important}
  /* Cards / sections collapse to single column */
  .sectionidx{grid-template-columns:1fr;gap:12px;margin:20px 0}
  .sectionidx a{padding:18px;border-radius:16px}
  .sectionidx a .t{font-size:16px}
  .tour-grid{grid-template-columns:1fr;gap:12px}
  .files{gap:8px}
  .fileref{padding:12px 14px;grid-template-columns:1fr;gap:6px}
  .fileref code{font-size:12px;white-space:normal;word-break:break-all}
  /* Prev/next stacks */
  .prevnext{grid-template-columns:1fr;margin:60px 0 0;padding-top:28px}
  .prevnext .next{text-align:left}
  .prevnext .next .t::after{content:" →"}
  /* Chat frame mockup tightens */
  .chat-frame .chat-body{padding:16px}
  .chat-frame .chat-head{padding:12px 16px}
  .tc-head{padding:9px 12px;gap:8px;flex-wrap:wrap}
  .tc-head .tc-cmd{font-size:11.5px;flex-basis:100%;order:5}
  .tc-body{padding:12px 14px;font-size:11.5px}
  /* Hide breadcrumb pill on phones — section rail covers it */
  .bcrumb{display:none}
  /* Page-head meta wraps tighter */
  .page-head{margin-bottom:36px}
  .meta{gap:14px;font-size:12px;margin-top:20px;padding-top:16px}
  /* Pagefoot stacks */
  .pagefoot{flex-direction:column;align-items:flex-start;gap:8px}
  /* Cmdk fits viewport width */
  .cmdk{width:calc(100vw - 24px);top:8vh}
  .cmdk .search{padding:14px 18px}
  .cmdk a.it{padding:10px}
  .cmdk a.it .nm{font-size:13px}
  .cmdk a.it .ds{font-size:12px}
}
@media(max-width:420px){
  /* Even tighter on the smallest screens */
  h1.page-title{font-size:28px;letter-spacing:-.025em}
  h2{font-size:21px;margin:48px 0 12px}
  .lede{font-size:16px}
  .topbar .right .ghost.search-btn-text-mobile{display:none}     /* drop "Search" word, keep icon if present */
  .topbar .brand span:not(.logo){font-size:13px}
  .topbar{padding:0 10px}
  .rail-inner{padding:0 10px}
  main.shell{padding-left:14px;padding-right:14px}
}