/* ============================================================
   Building With AI — Side Quest Strategies
   Brand: navy / blue / cyan, matching the SQS builder's-guide family
   ============================================================ */

:root{
  --navy: hsl(215 70% 25%);
  --navy-deep: hsl(215 70% 20%);
  --blue: hsl(210 80% 55%);
  --blue-mid: hsl(210 80% 35%);
  --cyan: hsl(190 85% 45%);
  --amber: hsl(35 90% 50%);
  --green: hsl(150 60% 38%);
  --bg: hsl(210 20% 98%);
  --ink: hsl(215 50% 15%);
  --muted: hsl(210 25% 92%);
  --muted-fg: hsl(215 20% 45%);
  --border: hsl(210 30% 88%);
  --radius: 0.75rem;
  --sidebar-w: 292px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--ink);
     background:var(--bg);line-height:1.6}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9em;
     background:var(--muted);padding:.08em .4em;border-radius:4px}
pre{background:hsl(215 50% 12%);color:hsl(210 30% 92%);border-radius:10px;padding:16px 18px;overflow-x:auto;
    font-size:12.5px;line-height:1.55;position:relative;margin:12px 0}
pre code{background:none;padding:0;color:inherit;font-size:inherit;white-space:pre}
a{color:var(--blue-mid)}
b,strong{font-weight:700}

/* ---------- layout ---------- */
.app{display:flex;min-height:100vh}
aside{width:var(--sidebar-w);flex:0 0 auto;background:var(--navy-deep);color:#fff;position:sticky;top:0;
      height:100vh;overflow-y:auto;padding:22px 0 30px}
.side-head{padding:0 22px 14px;border-bottom:1px solid hsl(215 40% 32%)}
.side-head .eyebrow{font-size:9px;letter-spacing:.24em;text-transform:uppercase;font-weight:600;opacity:.7}
.side-head .t{font-size:15px;font-weight:800;margin-top:5px;line-height:1.3}
.side-head .t span{color:hsl(190 85% 60%)}
.side-prof{margin:10px 22px 0;padding:8px 11px;border-radius:8px;background:hsl(215 50% 27%);
      font-size:10.5px;line-height:1.45;color:hsl(210 30% 82%);display:none}
.side-prof.on{display:block}
.side-prof b{color:hsl(190 85% 62%);display:block;font-size:9px;letter-spacing:.18em;text-transform:uppercase;
      margin-bottom:3px}
nav{padding:10px 12px 0}
.nav-group{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:hsl(210 30% 70%);
      padding:14px 10px 5px;font-weight:700}
nav a{display:flex;gap:9px;align-items:baseline;color:hsl(210 30% 85%);text-decoration:none;font-size:12.5px;
      padding:7px 10px;border-radius:7px;line-height:1.35}
nav a .n{font-size:10px;font-weight:700;color:hsl(190 85% 60%);min-width:16px}
nav a:hover{background:hsl(215 50% 28%);text-decoration:none}
nav a.active{background:hsl(215 60% 32%);color:#fff;font-weight:600}
main{flex:1;min-width:0}
.content{max-width:820px;margin:0 auto;padding:40px 44px 30px}

/* ---------- page chrome ---------- */
.page{display:none}
.page.active{display:block;animation:fade .25s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.crumb{font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);font-weight:700}
h1{font-size:28px;font-weight:800;letter-spacing:-.02em;margin:6px 0 6px;color:var(--navy)}
.lede{font-size:15px;color:var(--muted-fg);margin-bottom:22px;max-width:660px}
h2{font-size:17px;font-weight:750;color:var(--navy);margin:30px 0 10px}
h3{font-size:13.5px;font-weight:700;color:var(--ink);margin:20px 0 6px}
p{font-size:13.5px;margin:8px 0}
ul,ol{font-size:13.5px;padding-left:22px;margin:8px 0}
li{margin:4px 0}
.page p,.page li{color:hsl(215 30% 25%)}
.tiny{font-size:11.5px;color:var(--muted-fg)}

/* ---------- components ---------- */
.hero-card{background:linear-gradient(135deg,var(--navy-deep),var(--blue-mid) 55%,var(--cyan));color:#fff;
      border-radius:var(--radius);padding:22px 26px;margin:14px 0 6px;box-shadow:0 0 40px hsl(190 85% 45% / .18)}
.page .hero-card p{color:#fff;font-size:13.5px;text-shadow:0 1px 2px hsl(215 50% 15% / .25)}
.hero-card b{color:#fff}
.hero-card code{background:hsl(0 0% 100% / .18);color:#fff}

.cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}
.cards.three{grid-template-columns:1fr 1fr 1fr}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;
      box-shadow:0 4px 20px -4px hsl(215 70% 25% / .08)}
.card b{font-size:12.5px;color:var(--navy)}
.page .card p{font-size:12px;color:var(--muted-fg);margin:4px 0 0}
.card .ico{font-size:17px;display:block;margin-bottom:5px}

.callout{border-left:3px solid var(--cyan);background:#fff;border-radius:0 10px 10px 0;padding:12px 16px;
      margin:14px 0;font-size:13px}
.callout.warn{border-left-color:var(--amber)}
.callout.good{border-left-color:var(--green)}
.page .callout p{font-size:13px}
.callout b:first-child{color:var(--navy)}

table{width:100%;border-collapse:collapse;font-size:12.5px;margin:12px 0;background:#fff;
      border-radius:10px;overflow:hidden;border:1px solid var(--border)}
th{background:var(--muted);text-align:left;padding:8px 12px;font-size:11px;letter-spacing:.06em;
   text-transform:uppercase;color:var(--navy)}
td{padding:8px 12px;border-top:1px solid var(--border);vertical-align:top}
td code{font-size:11.5px}

/* numbered walkthrough steps */
.ui-steps{counter-reset:uistep;margin:12px 0}
.ui-step{display:flex;gap:12px;background:#fff;border:1px solid var(--border);border-radius:10px;
      padding:12px 14px;margin:8px 0}
.ui-step::before{counter-increment:uistep;content:counter(uistep);flex:0 0 auto;width:22px;height:22px;
      border-radius:50%;background:var(--navy);color:#fff;font-size:11px;font-weight:700;
      display:flex;align-items:center;justify-content:center;margin-top:2px}
.ui-step > div{min-width:0;flex:1}
.ui-step b{font-size:12.5px;color:var(--ink)}
.page .ui-step p{font-size:12.5px;color:var(--muted-fg);margin:2px 0 0}
.ui-chip{display:inline-block;background:hsl(190 85% 45% / .12);color:var(--navy);border-radius:5px;
      padding:0 6px;font-size:11.5px;font-weight:600;font-family:ui-monospace,Menlo,Consolas,monospace}

/* prompt boxes + anatomy */
.prompt-box{background:#fff;border:1.5px solid var(--cyan);border-radius:var(--radius);margin:14px 0;
      box-shadow:0 0 24px hsl(190 85% 45% / .12);overflow:hidden}
.prompt-box .ph{background:hsl(190 85% 45% / .1);padding:8px 16px;font-size:10.5px;letter-spacing:.16em;
      text-transform:uppercase;font-weight:700;color:var(--navy);display:flex;justify-content:space-between;
      align-items:center;gap:10px}
.prompt-box .pt{padding:14px 16px;font-size:13px;line-height:1.65;
      font-family:ui-monospace,Menlo,Consolas,monospace;white-space:pre-wrap;color:hsl(215 40% 22%)}
.pt .an{border-bottom:2px dotted var(--blue);cursor:help}
.anatomy{margin:10px 0;border:1px solid var(--border);border-radius:10px;background:#fff;overflow:hidden}
.anatomy .row{display:grid;grid-template-columns:210px 1fr;border-top:1px solid var(--border)}
.anatomy .row:first-child{border-top:none}
.anatomy .k{padding:9px 13px;font-size:12px;font-weight:700;color:var(--navy);background:hsl(210 25% 96%)}
.anatomy .v{padding:9px 13px;font-size:12.5px;color:hsl(215 30% 30%)}

/* terminal */
.term{background:hsl(215 50% 9%);border-radius:12px;overflow:hidden;margin:14px 0;
      border:1px solid hsl(215 40% 22%);box-shadow:0 8px 32px -8px hsl(215 70% 25% / .35)}
.term-bar{display:flex;gap:6px;padding:9px 14px;background:hsl(215 45% 15%);align-items:center;
      border-bottom:1px solid hsl(215 40% 20%)}
.term-bar i{width:10px;height:10px;border-radius:50%;flex:0 0 auto}
.term-bar i:nth-child(1){background:#ff5f57}
.term-bar i:nth-child(2){background:#febc2e}
.term-bar i:nth-child(3){background:#28c840}
.term-bar span{margin-left:8px;font-size:10.5px;color:hsl(210 20% 60%);
      font-family:ui-monospace,Menlo,Consolas,monospace}
.term-body{padding:13px 16px 15px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      font-size:11.8px;line-height:1.75;color:hsl(210 25% 78%)}
.term-body div{white-space:pre-wrap;word-break:break-word}
.t-p{color:#fff}
.t-p::before{content:"\276F  ";color:hsl(190 85% 55%);font-weight:700}
.t-tool{color:hsl(210 20% 55%)}
.t-tool::before{content:"\23FA  ";color:hsl(25 90% 60%)}
.t-ok{color:hsl(140 55% 62%)}
.t-ok::before{content:"\2713  ";font-weight:700}
.t-sub{color:hsl(280 55% 72%)}
.t-sub::before{content:"\21B3  ";color:hsl(280 45% 60%)}
.t-out{color:hsl(210 25% 78%)}
.t-out::before{content:"\00B7  ";color:hsl(215 20% 40%)}
.t-cap{font-size:10.5px;color:var(--muted-fg);margin:-6px 0 14px;font-style:italic}

/* copy buttons */
.copy-btn{position:absolute;top:8px;right:8px;background:hsl(215 40% 25%);color:hsl(210 30% 85%);
      border:1px solid hsl(215 30% 40%);border-radius:6px;font-size:10.5px;padding:4px 10px;cursor:pointer;
      font-weight:600;font-family:inherit}
.copy-btn:hover{background:var(--cyan);color:var(--navy-deep);border-color:var(--cyan)}
.ph .copy-btn{position:static;background:#fff;color:var(--navy);border:1px solid var(--border);flex:0 0 auto}
.ph .copy-btn:hover{background:var(--cyan);color:#fff;border-color:var(--cyan)}

/* accordion */
details{background:#fff;border:1px solid var(--border);border-radius:10px;margin:8px 0;overflow:hidden}
summary{cursor:pointer;padding:11px 15px;font-size:13px;font-weight:650;color:var(--navy);list-style:none;
      display:flex;align-items:center;gap:8px}
summary::-webkit-details-marker{display:none}
summary::before{content:"\25B8";color:var(--cyan);font-size:12px;transition:transform .15s}
details[open] summary::before{transform:rotate(90deg)}
details .d-body{padding:2px 16px 14px;border-top:1px solid var(--border)}

/* flow / clickable nodes */
.flow{display:flex;flex-direction:column;margin:14px 0}
.fnode{background:#fff;border:1px solid var(--border);border-radius:10px;padding:12px 16px;cursor:pointer;
      transition:box-shadow .15s,border-color .15s}
.fnode:hover{border-color:var(--cyan)}
.fnode.open{border-color:var(--cyan);box-shadow:0 0 18px hsl(190 85% 45% / .2)}
.fnode b{font-size:13px;color:var(--navy)}
.fnode .hint{font-size:11.5px;color:var(--muted-fg)}
.fnode .detail{display:none;font-size:12.5px;color:hsl(215 30% 30%);margin-top:8px;
      border-top:1px dashed var(--border);padding-top:8px}
.fnode.open .detail{display:block}
.fdown{text-align:center;color:var(--cyan);font-weight:800;font-size:15px;padding:2px 0}

/* checklist */
.check{display:flex;gap:11px;background:#fff;border:1px solid var(--border);border-radius:10px;
      padding:11px 14px;margin:7px 0;cursor:pointer;align-items:flex-start}
.check input{margin-top:3px;accent-color:var(--cyan);width:15px;height:15px;flex:0 0 auto}
.check div b{font-size:12.5px}
.page .check div p{font-size:11.5px;color:var(--muted-fg);margin:1px 0 0}
.check.done div b{text-decoration:line-through;color:var(--muted-fg)}
.check-progress{font-size:12px;color:var(--muted-fg);margin:10px 0}
.check-progress .bar{height:7px;background:var(--muted);border-radius:99px;overflow:hidden;margin-top:5px}
.check-progress .fill{height:100%;background:linear-gradient(90deg,var(--blue-mid),var(--cyan));width:0%;
      transition:width .25s}

/* ---------- questionnaire ---------- */
.q{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:15px 17px;margin:12px 0;
      box-shadow:0 4px 20px -6px hsl(215 70% 25% / .09)}
.q.answered{border-color:hsl(190 85% 45% / .5)}
.q .qn{font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);font-weight:700}
.q .qt{font-size:14px;font-weight:700;color:var(--navy);margin:4px 0 2px}
.page .q .qs{font-size:11.5px;color:var(--muted-fg);margin:0 0 10px}
.opts{display:flex;flex-wrap:wrap;gap:7px}
.opt{background:hsl(210 25% 97%);border:1px solid var(--border);border-radius:8px;padding:8px 12px;
      font:inherit;font-size:12px;font-weight:600;color:hsl(215 30% 30%);cursor:pointer;text-align:left;
      transition:all .12s;line-height:1.3}
.opt:hover{border-color:var(--cyan);color:var(--navy)}
.opt.sel{background:var(--navy);border-color:var(--navy);color:#fff}
.opt.sel::before{content:"\2713  ";color:hsl(190 85% 62%);font-weight:800}
.opt .os{display:block;font-size:10.5px;font-weight:500;opacity:.72;margin-top:2px}
.q-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin:16px 0 4px}
.btn{background:var(--navy);color:#fff;border:none;border-radius:9px;padding:10px 18px;font:inherit;
      font-size:12.5px;font-weight:700;cursor:pointer}
.btn:hover{background:var(--blue-mid)}
.btn.ghost{background:#fff;color:var(--navy);border:1px solid var(--border)}
.btn.ghost:hover{border-color:var(--cyan);background:#fff;color:var(--navy)}
.btn.cyan{background:var(--cyan);color:var(--navy-deep)}
.btn.cyan:hover{background:hsl(190 85% 38%);color:#fff}

/* personalized inserts */
.pers{display:none;border-left:3px solid var(--navy);background:hsl(210 30% 96%);border-radius:0 10px 10px 0;
      padding:11px 15px;margin:12px 0;font-size:12.5px}
.pers.on{display:block}
.pers .pl{font-size:9px;letter-spacing:.18em;text-transform:uppercase;font-weight:800;color:var(--navy);
      display:block;margin-bottom:3px}
.page .pers p{font-size:12.5px;margin:4px 0}
.pers-empty{background:hsl(210 25% 96%);border:1px dashed var(--border);border-radius:10px;padding:11px 15px;
      margin:12px 0;font-size:12.5px;color:var(--muted-fg)}
.pers-empty.hide{display:none}

/* roster picker */
.roster{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0}
.ag{background:#fff;border:1px solid var(--border);border-radius:11px;padding:12px 14px;cursor:pointer;
      transition:all .12s;position:relative}
.ag:hover{border-color:var(--cyan)}
.ag.sel{border-color:var(--navy);box-shadow:0 0 0 1.5px var(--navy) inset}
.ag .agn{font-size:12.5px;font-weight:750;color:var(--navy);display:flex;align-items:center;gap:6px}
.ag .box{width:14px;height:14px;border:1.5px solid var(--border);border-radius:4px;flex:0 0 auto;
      display:flex;align-items:center;justify-content:center;font-size:10px;color:#fff}
.ag.sel .box{background:var(--navy);border-color:var(--navy)}
.ag.sel .box::after{content:"\2713"}
.page .ag p{font-size:11.5px;color:var(--muted-fg);margin:5px 0 0}
.ag .meta{font-size:10px;color:var(--cyan);font-weight:700;letter-spacing:.05em;margin-top:6px;
      font-family:ui-monospace,Menlo,Consolas,monospace}
.ag .rec{position:absolute;top:-7px;right:9px;background:var(--cyan);color:var(--navy-deep);font-size:8.5px;
      letter-spacing:.12em;text-transform:uppercase;font-weight:800;padding:2px 7px;border-radius:99px}

/* model router */
.router{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin:14px 0}
.router-out{margin-top:13px;padding:13px 15px;border-radius:10px;background:hsl(210 30% 96%);
      border-left:3px solid var(--cyan);font-size:12.5px;display:none}
.router-out.on{display:block}
.router-out .pick{font-size:14px;font-weight:800;color:var(--navy);margin-bottom:3px}
.router-out .alt{font-size:11.5px;color:var(--muted-fg);margin-top:7px}

/* ladder */
.rung{background:#fff;border:1px solid var(--border);border-radius:11px;margin:9px 0;overflow:hidden;
      cursor:pointer;transition:border-color .12s}
.rung:hover{border-color:var(--cyan)}
.rung.open{border-color:var(--cyan);box-shadow:0 0 18px hsl(190 85% 45% / .16)}
.rung-h{display:flex;gap:12px;align-items:center;padding:13px 16px}
.rung-n{flex:0 0 auto;width:27px;height:27px;border-radius:8px;background:var(--navy);color:#fff;
      font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.rung.open .rung-n{background:var(--cyan);color:var(--navy-deep)}
.rung-t b{font-size:13.5px;color:var(--navy);display:block}
.rung-t span{font-size:11.5px;color:var(--muted-fg)}
.rung-b{display:none;padding:0 16px 15px 55px;font-size:12.5px}
.rung.open .rung-b{display:block}
.page .rung-b p{font-size:12.5px}

/* kit output */
.kit{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin:14px 0;overflow:hidden}
.kit-h{background:hsl(210 25% 96%);padding:10px 16px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
      font-weight:800;color:var(--navy);display:flex;justify-content:space-between;align-items:center;gap:10px;
      border-bottom:1px solid var(--border)}
.kit-h .fp{font-family:ui-monospace,Menlo,Consolas,monospace;text-transform:none;letter-spacing:0;
      font-size:11.5px;font-weight:600;color:var(--muted-fg)}
.kit pre{margin:0;border-radius:0}
.kit-lock{padding:26px 20px;text-align:center;color:var(--muted-fg);font-size:12.5px}

/* ============================================================
   animated visuals — the loop, and the information-flow map
   ============================================================ */

.viz{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin:14px 0;
     box-shadow:0 4px 22px -6px hsl(215 70% 25% / .1);overflow:hidden}
.viz-stage{padding:10px 12px 2px;background:linear-gradient(180deg,hsl(210 30% 98%),#fff)}
.viz svg{width:100%;height:auto;display:block;overflow:visible}

/* ---- shared node styling ---- */
.vz-node rect{fill:#fff;stroke:hsl(210 30% 82%);stroke-width:1.3;
      transition:fill .45s ease,stroke .45s ease,stroke-width .45s ease,opacity .45s ease}
.vz-node .vt{font:700 11.5px -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
      fill:var(--navy);transition:fill .45s ease}
.vz-node .vs{font:400 9px -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
      fill:hsl(215 20% 48%);transition:fill .45s ease}
.vz-node{transition:opacity .45s ease}

/* hub (knowledgebase) */
.vz-node.hub rect{fill:hsl(215 70% 22%);stroke:hsl(190 85% 45%)}
.vz-node.hub .vt{fill:#fff}
.vz-node.hub .vs{fill:hsl(190 85% 66%)}

/* the orchestrator */
.vz-node.core rect{fill:hsl(215 60% 30%);stroke:hsl(190 85% 50%);stroke-width:1.6}
.vz-node.core .vt{fill:#fff}
.vz-node.core .vs{fill:hsl(190 85% 68%)}

/* active state */
.vz-node.on rect{fill:hsl(190 85% 45%);stroke:hsl(190 85% 32%);stroke-width:2}
.vz-node.on .vt{fill:hsl(215 70% 18%)}
.vz-node.on .vs{fill:hsl(215 55% 26%)}
.vz-node.on.hub rect,.vz-node.on.core rect{fill:hsl(215 70% 20%);stroke:hsl(190 85% 55%);stroke-width:2.4}
.vz-node.on.hub .vt,.vz-node.on.core .vt{fill:#fff}
.vz-node.on.hub .vs,.vz-node.on.core .vs{fill:hsl(190 85% 70%)}
.vz-glow{opacity:0;transition:opacity .45s ease;pointer-events:none}
.vz-node.on .vz-glow{opacity:1}

/* completed steps in the loop */
.vz-node.done rect{fill:hsl(190 60% 96%);stroke:hsl(190 60% 72%)}
.vz-node.done .vt{fill:hsl(215 45% 34%)}

/* profile-matched systems get a quiet marker */
.vz-node .yours{opacity:0;transition:opacity .35s ease}
.vz-node.mine .yours{opacity:1}
.vz-node.mine rect{stroke:hsl(215 60% 45%);stroke-width:1.8}

/* Dimmed nodes recede but stay OPAQUE — a translucent box would let the
   routed edges behind it show through and read as a line across the label. */
.vz-node.dim rect{fill:#fff;stroke:hsl(210 30% 91%);stroke-width:1.3}
.vz-node.dim .vt{fill:hsl(215 22% 66%)}
.vz-node.dim .vs{fill:hsl(215 16% 75%)}
.vz-node.dim .yours{opacity:.4}
.vz-node.dim.done rect{fill:hsl(190 45% 97%);stroke:hsl(190 40% 87%)}
.vz-node.dim.done .vt{fill:hsl(215 25% 60%)}
.vz-node.dim.hub rect{fill:hsl(215 38% 74%);stroke:hsl(215 30% 80%)}
.vz-node.dim.core rect{fill:hsl(215 34% 72%);stroke:hsl(215 28% 78%)}
.vz-node.dim.hub .vt,.vz-node.dim.core .vt{fill:hsl(0 0% 100% / .92)}
.vz-node.dim.hub .vs,.vz-node.dim.core .vs{fill:hsl(0 0% 100% / .75)}

/* ---- edges ---- */
.vz-edge{fill:none;stroke:hsl(210 30% 84%);stroke-width:1.5;
      transition:stroke .45s ease,stroke-width .45s ease,opacity .45s ease}
.vz-edge.dashed{stroke-dasharray:5 4}
.vz-edge.dim{opacity:.22}
.vz-edge.on{stroke:hsl(190 85% 45%);stroke-width:2.4}
.vz-edge.on.dashed{stroke-dasharray:5 4}

/* the draw-in trace that runs on top of an active edge */
.vz-trace{fill:none;stroke:hsl(190 85% 42%);stroke-width:2.8;stroke-linecap:round;opacity:0}
.vz-trace.on{opacity:1}

.vz-el{font:600 8.5px -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
      fill:hsl(215 20% 50%);transition:fill .4s ease,opacity .4s ease}
.vz-el.on{fill:hsl(190 85% 30%);font-weight:800}
.vz-el.dim{opacity:.25}

.vz-pk{fill:hsl(190 85% 48%);stroke:#fff;stroke-width:1.1}

/* ---- caption + controls ---- */
.viz-cap{border-top:1px solid var(--border);padding:12px 16px;min-height:76px;
      background:hsl(210 30% 98%)}
.viz-cap .vc-step{font-size:9px;letter-spacing:.2em;text-transform:uppercase;font-weight:800;
      color:var(--cyan)}
.viz-cap .vc-t{font-size:13.5px;font-weight:750;color:var(--navy);margin:3px 0 2px}
.page .viz-cap .vc-d{font-size:12.5px;color:hsl(215 30% 30%);margin:0}
.viz-cap .vc-d b{color:var(--navy)}

.viz-ctl{display:flex;align-items:center;gap:7px;flex-wrap:wrap;padding:10px 16px 12px;
      border-top:1px solid var(--border);background:#fff}
.vbtn{background:#fff;border:1px solid var(--border);border-radius:7px;color:var(--navy);
      font:inherit;font-size:11.5px;font-weight:700;padding:6px 11px;cursor:pointer;line-height:1;
      transition:border-color .12s,background .12s,color .12s}
.vbtn:hover{border-color:var(--cyan);color:var(--navy)}
.vbtn.play{background:var(--navy);color:#fff;border-color:var(--navy);min-width:74px}
.vbtn.play:hover{background:var(--blue-mid);border-color:var(--blue-mid);color:#fff}
.vdots{display:flex;gap:5px;margin-left:auto;flex-wrap:wrap}
.vdot{width:9px;height:9px;border-radius:50%;background:hsl(210 25% 86%);border:none;padding:0;
      cursor:pointer;transition:background .2s,transform .2s}
.vdot:hover{background:hsl(190 60% 70%)}
.vdot.on{background:var(--cyan);transform:scale(1.32)}

/* story chips for the flow map */
.vchips{display:flex;gap:6px;flex-wrap:wrap;padding:11px 16px 0;background:#fff}
.vchip{background:hsl(210 25% 97%);border:1px solid var(--border);border-radius:99px;
      font:inherit;font-size:11px;font-weight:650;color:hsl(215 30% 34%);padding:5px 11px;
      cursor:pointer;transition:all .14s;line-height:1.2}
.vchip:hover{border-color:var(--cyan);color:var(--navy)}
.vchip.on{background:var(--navy);border-color:var(--navy);color:#fff}
.vchip .vn{color:var(--cyan);font-weight:800;margin-right:5px}
.vchip.on .vn{color:hsl(190 85% 65%)}

@media (max-width:640px){
  .viz-cap{min-height:96px}
  .vdots{margin-left:0;width:100%;padding-top:2px}
}
.viz-hint{display:none;font-size:10.5px;color:var(--muted-fg);font-style:italic;
      padding:6px 16px 8px;background:#fff}
/* Below this the diagram would scale its labels past legibility, so hold a
   floor width and let the stage scroll sideways on its own. */
@media (max-width:720px){
  .viz-stage{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .viz-stage svg{min-width:600px}
  .viz-hint{display:block}
}
@media (prefers-reduced-motion: reduce){
  .vz-node rect,.vz-node .vt,.vz-node .vs,.vz-edge,.vz-el,.vz-glow,.vz-node{transition-duration:.01ms}
  .vz-pk{display:none}
}
@media print{
  .viz-ctl,.vchips,.vz-pk{display:none}
  .vz-node.dim,.vz-edge.dim,.vz-el.dim{opacity:1}
}

/* ---------- surface / model comparison ---------- */
.cmp{width:100%;border-collapse:collapse;font-size:12.5px;margin:12px 0;background:#fff;
     border:1px solid var(--border);border-radius:10px;overflow:hidden}
.cmp th{background:var(--muted);text-align:left;padding:9px 12px;font-size:11px;
     letter-spacing:.05em;text-transform:uppercase;color:var(--navy);vertical-align:bottom}
.cmp th.code{background:hsl(190 85% 45% / .16)}
.cmp td{padding:8px 12px;border-top:1px solid var(--border);vertical-align:top}
.cmp td:first-child{font-weight:700;color:var(--navy);background:hsl(210 25% 97.5%);width:26%}
.cmp td.code{background:hsl(190 85% 45% / .05)}
.cmp .yes{color:hsl(150 60% 32%);font-weight:700}
.cmp .no{color:hsl(215 15% 62%)}
.cmp .part{color:hsl(35 80% 38%);font-weight:650}

/* ---------- ROI calculator ---------- */
.calc{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin:14px 0;
      overflow:hidden;box-shadow:0 4px 22px -6px hsl(215 70% 25% / .1)}
.calc-in{padding:15px 17px 6px}
.calc-row{display:grid;grid-template-columns:1fr 108px;gap:10px;align-items:center;
      padding:7px 0;border-bottom:1px dashed var(--border)}
.calc-row:last-child{border-bottom:none}
.calc-row label{font-size:12.5px;color:hsl(215 30% 26%);line-height:1.35}
.calc-row label small{display:block;font-size:11px;color:var(--muted-fg)}
.calc-row .fieldwrap{display:flex;align-items:center;gap:5px;justify-content:flex-end}
.calc-row .pre{font-size:12.5px;color:var(--muted-fg);font-weight:700}
.calc input[type=number]{width:74px;font:inherit;font-size:12.5px;font-weight:700;color:var(--navy);
      border:1px solid var(--border);border-radius:7px;padding:6px 8px;text-align:right;
      background:hsl(210 25% 98%);-moz-appearance:textfield}
.calc input[type=number]:focus{outline:none;border-color:var(--cyan);background:#fff}
.calc-row .suf{font-size:11px;color:var(--muted-fg);min-width:26px}

.calc-out{border-top:1px solid var(--border);background:hsl(215 55% 22%);color:#fff;padding:16px 18px}
.calc-hero{font-size:13.5px;line-height:1.5;color:hsl(210 30% 92%)}
.calc-hero b{color:hsl(190 85% 65%)}
.calc-big{font-size:27px;font-weight:800;letter-spacing:-.02em;color:#fff;margin:2px 0 8px;line-height:1.15}
.calc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px;
      border-top:1px solid hsl(215 40% 34%);padding-top:13px}
.calc-cell .k{font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:hsl(210 25% 68%);
      font-weight:700}
.calc-cell .v{font-size:17px;font-weight:800;color:#fff;margin-top:2px}
.calc-cell .v.neg{color:hsl(15 85% 70%)}
.calc-note{padding:11px 17px;font-size:11.5px;color:var(--muted-fg);background:hsl(210 25% 97.5%);
      border-top:1px solid var(--border)}

@media (max-width:640px){
  .calc-grid{grid-template-columns:1fr;gap:9px}
  .calc-row{grid-template-columns:1fr 96px}
  .cmp td:first-child{width:34%}
}

/* misc */
.split{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:12px 0}
.badge{display:inline-block;font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;
      padding:2px 8px;border-radius:99px;background:hsl(190 85% 45% / .15);color:var(--navy);
      vertical-align:middle;margin-left:6px}
.badge.warn{background:hsl(35 90% 50% / .18)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:12.5px;margin:10px 0}
.kv b{color:var(--navy)}

/* prev / next */
.pager{display:flex;justify-content:space-between;gap:12px;margin:38px 0 10px;border-top:1px solid var(--border);
      padding-top:18px}
.pager a{flex:1;text-decoration:none;background:#fff;border:1px solid var(--border);border-radius:10px;
      padding:11px 15px;font-size:12.5px;color:var(--navy)}
.pager a:hover{border-color:var(--cyan);text-decoration:none}
.pager a .dir{font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-fg);display:block}
.pager a b{font-size:13px}
.pager a.next{text-align:right}
.pager a.hidden{visibility:hidden}

.foot{padding:14px 44px 26px;font-size:11px;color:var(--muted-fg);max-width:820px;margin:0 auto}

/* mobile */
.menu-btn{display:none}
@media (max-width:900px){
  .app{flex-direction:column}
  aside{position:static;width:100%;height:auto;padding-bottom:10px}
  nav{display:none;padding-bottom:14px}
  nav.open{display:block}
  .menu-btn{display:block;margin:10px 22px 0;background:hsl(215 60% 32%);color:#fff;border:none;
      border-radius:8px;padding:9px 14px;font-size:12.5px;font-weight:600;cursor:pointer;width:calc(100% - 44px);
      font-family:inherit}
  .content{padding:26px 20px}
  .cards,.cards.three,.roster,.split{grid-template-columns:1fr}
  .anatomy .row{grid-template-columns:1fr}
  .foot{padding:14px 20px 26px}
}
@media print{
  aside,.pager,.copy-btn,.menu-btn{display:none}
  .page{display:block !important}
}