/* THE TORUS DIAGRAM — the power of 3·6·9 */
:root{
  --bg:#070910;
  --bg2:#0c1020;
  --ink:#e8eefc;
  --dim:#9aa6c4;
  --faint:#5d6b94;
  --line:#1d2540;
  --gold:#ffcf5c;
  --amber:#ff9d4d;
  --cyan:#5cd8ff;
  --mint:#66e0b0;
  --violet:#a98cff;
  --rose:#ff7a9c;
  --card:#0e1324;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 ui-sans-serif,-apple-system,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  -webkit-text-size-adjust:100%;overflow-x:hidden;
}
#starfield{position:fixed;inset:0;z-index:-2;background:
  radial-gradient(1100px 700px at 50% -10%,#15204a 0%,transparent 70%),
  radial-gradient(800px 600px at 85% 20%,#1c1436 0%,transparent 70%),
  radial-gradient(900px 700px at 10% 70%,#07251f 0%,transparent 70%),
  var(--bg);
}
#starfield:after{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:
    radial-gradient(1px 1px at 20% 30%,#fff 50%,transparent),
    radial-gradient(1px 1px at 70% 15%,#cfe 50%,transparent),
    radial-gradient(1px 1px at 45% 65%,#fff 50%,transparent),
    radial-gradient(1px 1px at 88% 55%,#ffd 50%,transparent),
    radial-gradient(1px 1px at 12% 85%,#fff 50%,transparent),
    radial-gradient(1px 1px at 60% 90%,#def 50%,transparent),
    radial-gradient(1px 1px at 33% 8%,#fff 50%,transparent),
    radial-gradient(1px 1px at 95% 80%,#fff 50%,transparent);
}

/* ---------- hero ---------- */
.hero{max-width:1020px;margin:0 auto;padding:46px 20px 10px;text-align:center}
.hero-mark{display:flex;justify-content:center;margin-bottom:6px}
.mark{width:120px;height:120px;filter:drop-shadow(0 0 18px rgba(255,207,92,.25))}
.mk-ring{fill:none;stroke:var(--gold);stroke-width:2.5;opacity:.85}
.mk-tri{fill:none;stroke:var(--mint);stroke-width:2.5;opacity:.8}
.mk-hex{fill:none;stroke:var(--cyan);stroke-width:1.4;opacity:.45}
.mk-core{fill:none;stroke:var(--violet);stroke-width:2.5;opacity:.9}
.mark{animation:slowspin 44s linear infinite}
@keyframes slowspin{to{transform:rotate(360deg)}}
.kicker{margin:0;letter-spacing:.42em;text-transform:uppercase;font-size:11px;color:var(--dim)}
h1{
  margin:.18em 0 .3em;font-size:clamp(34px,8vw,74px);line-height:.98;letter-spacing:.02em;
  background:linear-gradient(100deg,#fff 10%,var(--gold) 40%,var(--mint) 65%,var(--cyan) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.sub{max-width:720px;margin:0 auto .5em;color:#cfd8f2;font-size:clamp(15px,2.2vw,19px)}
.sub.small{font-size:15px;color:var(--dim)}
.g369{color:var(--mint)}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:22px 0 6px}
.chips a{
  text-decoration:none;color:var(--ink);background:#121a33;border:1px solid var(--line);
  padding:7px 13px;border-radius:999px;font-size:13px;transition:.18s;
}
.chips a:hover{background:#1b2440;border-color:var(--gold);color:var(--gold);transform:translateY(-1px)}

/* ---------- layout ---------- */
main{max-width:1180px;margin:0 auto;padding:10px 18px 40px}
section{padding:54px 0 10px;border-top:1px solid var(--line);margin-top:34px}
section:first-child{border-top:none}
h2{font-size:clamp(21px,3.6vw,32px);margin:0 0 .35em;letter-spacing:.01em;display:flex;gap:.55em;align-items:baseline;flex-wrap:wrap}
h2 .num{
  font-size:.62em;color:var(--gold);border:1px solid rgba(255,207,92,.4);
  border-radius:8px;padding:.05em .5em;letter-spacing:.06em;flex:0 0 auto;
}
h3{margin:0 0 .5em;font-size:16px;letter-spacing:.06em;text-transform:uppercase;color:var(--gold)}
.lead{color:#c6d1ee;max-width:900px;font-size:clamp(15px,2vw,18px)}
p{margin:.55em 0}
.tiny{font-size:13px;color:var(--dim)}
.formula{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#0a0f20;border:1px solid var(--line);
  border-radius:10px;padding:10px 12px;color:var(--cyan);font-size:14px;overflow-x:auto}
code{font-family:ui-monospace,Menlo,monospace;background:#0a0f20;border:1px solid var(--line);
  border-radius:5px;padding:.08em .35em;color:var(--cyan);font-size:.92em}
a{color:var(--cyan)}
.two,.three{display:grid;gap:14px;margin-top:18px}
.two{grid-template-columns:repeat(auto-fit,minmax(330px,1fr))}
.three{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.card{background:linear-gradient(180deg,rgba(18,24,46,.9),rgba(10,14,28,.9));
  border:1px solid var(--line);border-radius:16px;padding:16px 17px}
.card.wide{margin-top:14px}
.hot-card{border-color:rgba(102,224,176,.4);box-shadow:0 0 0 1px rgba(102,224,176,.06) inset}
ul.tight{margin:.4em 0;padding-left:1.15em}
ul.tight li{margin:.35em 0}
.panel{background:rgba(8,11,22,.72);border:1px solid var(--line);border-radius:18px;padding:16px;margin-top:16px}
.stage{display:flex;gap:16px;align-items:flex-start;justify-content:center;flex-wrap:wrap}
canvas{max-width:100%;height:auto;display:block;border-radius:14px}
#circCanvas,#webCanvas{background:radial-gradient(circle at 50% 45%,#0d1326 0%,#06080f 72%)}
#fluxCanvas{background:radial-gradient(circle at 50% 50%,#0b1a19 0%,#06080f 75%);width:100%}

/* ---------- controls ---------- */
.controls{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px;justify-content:center}
button{
  background:#141c35;color:var(--ink);border:1px solid var(--line);border-radius:10px;
  padding:9px 14px;font-size:14px;cursor:pointer;transition:.16s;font-family:inherit;
}
button:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-1px)}
button.prim{background:linear-gradient(100deg,#2a2140,#1d2f3a);border-color:rgba(255,207,92,.45);color:var(--gold)}
button.on{background:#2a3a28;border-color:var(--mint);color:var(--mint)}
label.slide{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--dim);flex-wrap:wrap}
label.slide.big{font-size:13px;letter-spacing:.12em;color:var(--gold);width:100%}
input[type=range]{accent-color:var(--gold);width:150px;max-width:46vw}
label.slide.big input[type=range]{width:100%;max-width:none;flex:1 1 220px;accent-color:var(--mint)}
label.check{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--dim);cursor:pointer}
label.check input{accent-color:var(--mint)}

/* ---------- ch I fold ---------- */
.foldpanel{display:grid;grid-template-columns:minmax(220px,300px) 1fr;gap:18px;align-items:start}
.foldctl label{display:block;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
#foldIn{width:100%;background:#070b16;border:1px solid var(--line);border-radius:12px;color:var(--gold);
  font:600 26px/1.3 ui-monospace,Menlo,monospace;padding:10px 12px;outline:none}
#foldIn:focus{border-color:var(--gold)}
.foldbtns{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.foldbtns button{padding:5px 9px;font-size:12px}
.foldout{min-height:160px;display:flex;flex-direction:column;gap:9px;justify-content:center}
.foldrow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;animation:fin .4s ease both}
@keyframes fin{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:none}}
.fdigits{display:flex;gap:5px;flex-wrap:wrap}
.fd{width:30px;height:38px;display:grid;place-items:center;background:#111831;border:1px solid var(--line);
  border-radius:8px;font:600 17px ui-monospace,Menlo,monospace;color:#cfe}
.farrow{color:var(--dim);font-size:18px}
.fsum{font:700 22px ui-monospace,Menlo,monospace;color:var(--cyan)}
.froot{font:800 40px/1 ui-monospace,Menlo,monospace;padding:4px 16px;border-radius:12px}
.froot.t369{color:#06120d;background:linear-gradient(120deg,var(--mint),#9affd0);box-shadow:0 0 28px rgba(102,224,176,.5)}
.froot.tcirc{color:#1a0f00;background:linear-gradient(120deg,var(--gold),var(--amber));box-shadow:0 0 28px rgba(255,207,92,.45)}
.ftag{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim)}

/* root grid */
.rootgrid{display:grid;grid-template-columns:repeat(9,1fr);gap:3px;margin-top:8px}
.rg{aspect-ratio:1;display:grid;place-items:center;border-radius:5px;font:600 11px ui-monospace,Menlo,monospace;
  position:relative;cursor:default}
.rg b{position:absolute;inset:0;display:grid;place-items:center;font-size:10px;opacity:0}
.rg:hover b{opacity:1;background:rgba(0,0,0,.6);border-radius:5px;color:#fff}
.legend{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}
.lg{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--dim)}
.lgsw{width:12px;height:12px;border-radius:3px}

/* readout */
.readout{min-width:200px;flex:0 1 230px;background:#070b16;border:1px solid var(--line);border-radius:14px;padding:12px}
.ro-row{display:flex;justify-content:space-between;align-items:baseline;gap:8px;padding:5px 0;border-bottom:1px dashed #19203a}
.ro-row span{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
.ro-row b{font:700 18px ui-monospace,Menlo,monospace;color:#cfe;word-break:break-all;text-align:right}
.ro-row b.hot{color:var(--gold);font-size:26px}
.tape{margin-top:10px;max-height:200px;overflow:auto;font:12px ui-monospace,Menlo,monospace;color:var(--dim);
  display:flex;flex-direction:column;gap:2px}
.tape div{white-space:nowrap}
.tape b{color:var(--gold)}

/* ---------- webs ---------- */
.webpanel{display:grid;grid-template-columns:1fr minmax(200px,260px);gap:16px;align-items:start}
.webpick{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.webpick button{padding:10px 0;font:600 16px ui-monospace,Menlo,monospace}
.webinfo{margin:12px 0;font-size:14px;color:#c6d1ee;min-height:92px}
.webinfo b{color:var(--gold)}
.minigrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:10px;margin-top:16px}
.mini{background:#080c18;border:1px solid var(--line);border-radius:12px;padding:7px;text-align:center;cursor:pointer;transition:.16s}
.mini:hover{border-color:var(--gold);transform:translateY(-2px)}
.mini.sel{border-color:var(--mint);box-shadow:0 0 0 1px rgba(102,224,176,.3)}
.mini canvas{width:100%;height:auto;background:transparent}
.mini span{font:600 12px ui-monospace,Menlo,monospace;color:var(--dim)}

/* ---------- 3D ---------- */
.torpanel{display:grid;grid-template-columns:1fr minmax(240px,300px);gap:16px;align-items:stretch}
.t3d{position:relative;min-height:440px;border-radius:16px;overflow:hidden;background:radial-gradient(circle at 50% 42%,#101a33 0%,#05070e 75%);border:1px solid var(--line)}
.t3d canvas{width:100%;height:100%;border-radius:0;touch-action:none;cursor:grab}
.t3d canvas:active{cursor:grabbing}
.t3d-hint{position:absolute;left:10px;bottom:9px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#5f6c8e;pointer-events:none}
.t3d-badge{position:absolute;right:10px;top:10px;font:600 11px ui-monospace,Menlo,monospace;letter-spacing:.18em;
  color:var(--gold);background:rgba(8,11,22,.72);border:1px solid rgba(255,207,92,.35);border-radius:999px;padding:4px 11px;pointer-events:none}
.torctl{display:flex;flex-direction:column;gap:11px;background:#070b16;border:1px solid var(--line);border-radius:16px;padding:14px}
.presetrow{display:flex;flex-wrap:wrap;gap:6px}
.presetrow button{font-size:12.5px;padding:7px 10px}
.togs{display:grid;grid-template-columns:1fr 1fr;gap:6px 10px;border-top:1px solid var(--line);padding-top:10px}
.t3d-note{font-size:12.5px;color:var(--dim);border-top:1px solid var(--line);padding-top:10px;min-height:52px}

/* ---------- hear ---------- */
.hearpanel{text-align:center}
.hearbtns{display:flex;flex-wrap:wrap;gap:9px;justify-content:center}
.hearviz{display:flex;gap:6px;justify-content:center;align-items:flex-end;height:90px;margin:16px 0 4px}
.hv{width:30px;border-radius:7px 7px 3px 3px;background:#18203c;border:1px solid var(--line);
  display:flex;align-items:flex-end;justify-content:center;font:600 12px ui-monospace,Menlo,monospace;color:var(--dim);
  transition:height .12s,background .12s,color .12s;height:26px}
.hv.lit{background:linear-gradient(0deg,var(--gold),var(--amber));color:#1a0f00;border-color:var(--gold)}
.hv.lit369{background:linear-gradient(0deg,var(--mint),#9affd0);color:#06120d;border-color:var(--mint)}

/* ---------- ledger ---------- */
.ledger .real{border-color:rgba(102,224,176,.35)}
.ledger .real h3{color:var(--mint)}
.ledger .claim{border-color:rgba(255,122,156,.3)}
.ledger .claim h3{color:var(--rose)}
.stance{border-color:rgba(255,207,92,.3)}

/* ---------- footer ---------- */
footer{max-width:1180px;margin:0 auto;padding:26px 18px 60px;border-top:1px solid var(--line);text-align:center}
.f1{letter-spacing:.3em;font-size:11px;text-transform:uppercase;color:var(--dim);margin-bottom:10px}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .foldpanel,.webpanel,.torpanel{grid-template-columns:1fr}
  .togs{grid-template-columns:1fr 1fr}
  .t3d{min-height:360px}
  .readout{flex:1 1 100%}
}
@media (max-width:520px){
  .hero{padding-top:30px}
  .mark{width:92px;height:92px}
  .chips a{font-size:12px;padding:6px 10px}
  section{padding-top:38px;margin-top:24px}
  .panel{padding:11px;border-radius:14px}
  .fd{width:25px;height:32px;font-size:14px}
  .froot{font-size:32px}
  .rootgrid{gap:2px}
  .rg{font-size:9px}
  input[type=range]{width:120px}
  .t3d{min-height:300px}
}
@media (prefers-reduced-motion:reduce){
  .mark{animation:none}
  *{scroll-behavior:auto}
}

/* grid mode tabs (ch I) */
.gridtabs{display:flex;gap:6px;margin:2px 0 8px;flex-wrap:wrap}
.gridtabs button{padding:5px 10px;font-size:12px}

/* ---------- ch VII: the scope ---------- */
.scopepanel{display:grid;grid-template-columns:minmax(260px,540px) 1fr;gap:18px;align-items:start}
.scopewrap{position:relative}
#scopeCanvas{background:#030c08;border:1px solid rgba(124,255,178,.22);border-radius:14px;
  box-shadow:0 0 50px rgba(124,255,178,.07) inset,0 0 24px rgba(0,0,0,.6)}
.scope-badge{position:absolute;right:12px;top:11px;font:700 15px ui-monospace,Menlo,monospace;letter-spacing:.1em;
  color:#7cffb2;background:rgba(3,12,8,.8);border:1px solid rgba(124,255,178,.3);border-radius:999px;padding:3px 12px}
.scope-hint{position:absolute;left:12px;bottom:10px;font:11px ui-monospace,Menlo,monospace;color:rgba(124,255,178,.4);letter-spacing:.1em}
.scopeside{display:flex;flex-direction:column;gap:11px}
.pickrow label{display:block;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);margin-bottom:5px}
.digrow{display:grid;grid-template-columns:repeat(9,1fr);gap:4px}
.digrow button{padding:8px 0;font:700 15px ui-monospace,Menlo,monospace}
.scopeinfo{font-size:13.5px;color:#c6d1ee;background:#070b16;border:1px solid var(--line);border-radius:12px;padding:11px;min-height:96px}
.plabel{margin-bottom:10px}
#windCanvas{width:100%;max-width:980px;margin:0 auto;background:radial-gradient(circle at 50% 50%,#0a1020 0%,#05070e 80%);border:1px solid var(--line)}
@media (max-width:900px){
  .scopepanel{grid-template-columns:1fr}
  .digrow button{padding:7px 0;font-size:13px}
}
.hscroll{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:4px}
.hscroll::-webkit-scrollbar{height:6px}
.hscroll::-webkit-scrollbar-thumb{background:#223055;border-radius:3px}
.hswipe{display:none;text-align:center;letter-spacing:.14em;text-transform:uppercase;font-size:10px}
@media (max-width:1050px){.hswipe{display:block}}