/* Layout: a cryogenic lab console. Data-sheet grid, circuit wires, Bloch spheres, Dirac notation typeset like a paper.
   References: IBM Quantum (Plex type, light large headlines), Qiskit circuit diagrams, Bloch-sphere plots, CHSH correlation curves.
   Palette: cold lab only. One measurement accent (cyan), one wire blue, white for collapse. Single committed dark world. */
:root{
  color-scheme:dark;
  --void:#03060b;
  --panel:#08101a;
  --grid:#0e1a27;
  --line:#1a2a3c;
  --text:#e4ecf5;
  --dim:#7f91a8;
  --q:#3fd8ff;        /* measured state, accent */
  --wire:#3a6dff;     /* quantum wires, amplitudes */
  --hot:#ffffff;      /* collapse flash */
  --ok:#3fe0b0;
  --sans:"IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --math:"STIX Two Text", "Cambria Math", "Times New Roman", serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--void);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.6;padding-inline:clamp(16px,4vw,48px);padding-block:0 56px;overflow-x:hidden;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:48px 48px;background-position:-1px -1px}
a{color:inherit}
p{margin:0}
h1,h2,h3{margin:0;font-weight:300;letter-spacing:-.02em;line-height:1.08;text-wrap:balance}
h2{font-size:clamp(28px,3.8vw,48px)}
h3{font-size:16px;font-weight:500;letter-spacing:0}
.wrap{max-width:1200px;margin:0 auto}
.label{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.ket{font-family:var(--math)}
:focus-visible{outline:1.5px solid var(--q);outline-offset:3px}

header{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:14px;
  background:rgba(3,6,11,.86);-webkit-backdrop-filter:blur(14px) saturate(1.3);backdrop-filter:blur(14px) saturate(1.3);
  box-shadow:0 0 0 100vmax rgba(3,6,11,.86),0 1px 0 100vmax var(--line);clip-path:inset(0 -100vmax -1px)}
section,#circuit,#physics,#oracle,#draw,#verify,#faq{scroll-margin-top:84px}
/* pointer spotlight on instrument panels */
.spot{position:relative;isolation:isolate}
.spot::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;opacity:0;transition:opacity .35s;
  background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(63,216,255,.10),transparent 70%)}
.spot:hover::after{opacity:1}
.spot>*{position:relative;z-index:1}
/* quantum cursor: a probability cloud that lags behind the measured point */
#qdot,#qcloud{position:fixed;left:0;top:0;pointer-events:none;z-index:60;border-radius:50%;transform:translate(-50%,-50%)}
#qdot{width:6px;height:6px;background:var(--q);box-shadow:0 0 10px var(--q)}
#qcloud{width:46px;height:46px;border:1px solid rgba(63,216,255,.45);background:radial-gradient(circle,rgba(63,216,255,.14),transparent 70%);transition:width .25s,height .25s,border-color .25s}
#qcloud.hot{width:74px;height:74px;border-color:var(--hot)}
.ripple{position:fixed;pointer-events:none;z-index:59;width:10px;height:10px;border-radius:50%;border:1.5px solid var(--q);transform:translate(-50%,-50%);animation:rip .9s ease-out forwards}
.ripple.b{border-color:var(--wire);animation-delay:.1s}
@keyframes rip{to{width:220px;height:220px;opacity:0}}
/* wave-packet dividers between sections */
.wave-div{height:60px;margin-block:-30px;position:relative;z-index:1;pointer-events:none}
.wave-div svg{width:100%;height:100%;display:block}
/* interactive circuit gates */
.gate{cursor:pointer}
.gate *{transition:filter .25s,stroke-width .25s}
.gate.on *{filter:drop-shadow(0 0 6px #3fd8ff)}
.legend-row div{cursor:default;transition:background .25s}
.legend-row div.on{background:#0c1d2c}
.chipframe{overflow:hidden}
#chip{display:block;width:100%;height:auto;background:transparent}
.chipbar{display:flex;justify-content:space-between;gap:12px 20px;flex-wrap:wrap;padding:14px 18px;border-bottom:1px solid var(--line);position:relative;z-index:2}
.chiplog{flex:1 1 260px;min-width:0;font-family:var(--mono);font-size:11.5px;line-height:1.75;color:var(--dim);min-height:5.2em}
.chiplog div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chiplog div:first-child{color:var(--text)}
.chiplog b{color:var(--q);font-weight:500}
.chipstat{display:flex;gap:1px;background:var(--line);border:1px solid var(--line);align-self:flex-start}
.chipstat div{background:var(--void);padding:8px 12px;min-width:76px}
.chipstat b{display:block;font-family:var(--mono);font-weight:500;font-size:16px;font-variant-numeric:tabular-nums}
@media (pointer:coarse){#qdot,#qcloud{display:none}.spot::after{display:none}}
@media (max-width:560px){.hide-sm{display:none}}
@media (max-width:760px){pre{white-space:pre-wrap;overflow-wrap:anywhere;font-size:12px;padding:18px}}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:14px;letter-spacing:.24em}
.brand .ket{font-size:20px;letter-spacing:0;color:var(--q)}
nav{display:flex;gap:20px}
nav a,.brand{white-space:nowrap}
@media (max-width:1180px){nav{gap:14px}nav a{font-size:11px;letter-spacing:.08em}}
nav a{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;text-decoration:none;color:var(--dim)}
nav a:hover{color:var(--text)}
.chip{font-family:var(--mono);font-size:12px;letter-spacing:.1em;padding:10px 14px;border:1px solid var(--line);background:var(--panel);text-decoration:none;white-space:nowrap}

.hero{position:relative;border:1px solid var(--line);background:radial-gradient(90% 80% at 50% 35%,#0a1726 0%,var(--void) 75%);min-height:clamp(560px,78vh,800px);display:grid;grid-template-rows:1fr auto;overflow:hidden}
.corner{position:absolute;width:14px;height:14px;border-color:var(--q);border-style:solid;opacity:.8;z-index:3}
.corner.tl{top:-1px;left:-1px;border-width:1px 0 0 1px}.corner.tr{top:-1px;right:-1px;border-width:1px 1px 0 0}
.corner.bl{bottom:-1px;left:-1px;border-width:0 0 1px 1px}.corner.br{bottom:-1px;right:-1px;border-width:0 1px 1px 0}
#scene{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero-top{position:relative;z-index:2;display:flex;justify-content:space-between;gap:16px;padding:18px 22px;font-family:var(--mono);font-size:11.5px;color:var(--dim);letter-spacing:.08em;flex-wrap:wrap}
.hero-top b{color:var(--text);font-weight:500}
.live{display:inline-flex;align-items:center;gap:8px}
.live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--q);box-shadow:0 0 10px var(--q);animation:blink 1.6s infinite}
@keyframes blink{50%{opacity:.25}}
.hero-copy{position:relative;z-index:2;padding:clamp(22px,4vw,48px);display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:28px;align-items:end;background:linear-gradient(transparent,rgba(3,6,11,.92) 50%)}
.state{font-family:var(--math);font-size:clamp(20px,2.4vw,28px);color:var(--q);margin-bottom:14px}
.hero h1{font-size:clamp(38px,6vw,82px)}
.hero h1 strong{font-weight:500}
.lede{font-size:clamp(16px,1.4vw,18px);color:#b8c6d6;max-width:56ch;margin-top:18px;font-weight:300}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.ca{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-top:18px;padding:10px 12px;border:1px solid var(--line);background:rgba(11,16,24,.7);max-width:640px}
.ca-k{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--q)}
.ca-v{font-family:var(--mono);font-size:13px;color:#e4ecf5;overflow-wrap:anywhere;flex:1 1 260px;min-width:0}
.ca-copy{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;padding:6px 10px;border:1px solid var(--q);background:transparent;color:var(--q);cursor:pointer}
.ca-links{display:flex;gap:12px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase}
.btn{display:inline-flex;align-items:center;gap:10px;font:500 14px/1 var(--mono);letter-spacing:.06em;padding:15px 20px;text-decoration:none;cursor:pointer;border:1px solid var(--q);background:var(--q);color:#021018}
.btn:hover{background:var(--hot);border-color:var(--hot)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--q);color:var(--q)}
.readout{display:grid;gap:1px;background:var(--line);border:1px solid var(--line)}
.readout{min-width:0}
.readout div{background:rgba(8,16,26,.9);padding:12px 14px;min-width:0;overflow:hidden}
.readout b{display:block;font-family:var(--mono);font-weight:500;font-size:17px;font-variant-numeric:tabular-nums;margin-top:3px}
.bits{font-family:var(--mono);font-size:14px;letter-spacing:.1em;white-space:nowrap;overflow:hidden;display:flex;justify-content:flex-end;margin-top:4px;-webkit-mask-image:linear-gradient(90deg,transparent,#000 30%);mask-image:linear-gradient(90deg,transparent,#000 30%)}
.btrack{display:inline-flex;gap:.8em;will-change:transform}
.btrack span{color:var(--q)}
.btrack span.z{color:#9fb0c6}
.btrack span.n{color:var(--dim)}
.btrack span.new{animation:bnew 1.2s ease-out}
@keyframes bnew{0%{color:#fff;text-shadow:0 0 12px var(--q)}100%{text-shadow:none}}

.stream{border-inline:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;white-space:nowrap;font-family:var(--mono);font-size:12.5px;color:var(--dim);padding-block:12px;background:var(--panel)}
.stream .track{display:inline-flex;gap:44px;animation:marq 60s linear infinite;padding-left:20px}
.stream b{color:var(--text);font-weight:500}
.stream i{font-style:normal;color:var(--ok)}
@keyframes marq{to{transform:translateX(-50%)}}
.note{font-family:var(--mono);font-size:11px;color:var(--dim);margin-top:10px}

section{padding-block:clamp(64px,9vw,112px)}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:end;margin-bottom:36px}
.head p{color:var(--dim);max-width:58ch;font-size:17px;font-weight:300}
.sec-id{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--q);margin-bottom:14px;display:block}
.frame{border:1px solid var(--line);background:var(--panel);position:relative;min-width:0}

.circuit{padding:clamp(14px,3vw,28px);overflow-x:auto}
.circuit svg{display:block;width:100%;min-width:760px;height:auto}
.legend-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border-top:1px solid var(--line)}
.legend-row div{background:var(--panel);padding:16px 18px;min-width:0}
.legend-row b{display:block;font-family:var(--mono);font-weight:500;color:var(--q);font-size:13px;margin-bottom:6px}
.legend-row p{font-size:14px;color:var(--dim)}

.physics{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.physics>div{background:var(--panel);padding:clamp(16px,2.6vw,28px);min-width:0}
.physics svg{width:100%;height:auto;display:block}
.hist{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;align-items:end;height:200px;margin-top:20px}
.bar{display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:8px;height:100%}
.bar i{display:block;width:100%;background:linear-gradient(180deg,var(--q),var(--wire));transition:height .5s cubic-bezier(.2,.8,.2,1);min-height:2px}
.bar.low i{background:var(--line)}
.bar span{font-family:var(--math);font-size:18px}
.bar small{font-family:var(--mono);font-size:11.5px;color:var(--dim);font-variant-numeric:tabular-nums}
.svals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);margin-top:22px;border:1px solid var(--line)}
.svals div{background:var(--void);padding:12px}
.svals b{display:block;font-family:var(--mono);font-weight:500;font-size:20px;font-variant-numeric:tabular-nums}

.table{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:700px;font-size:13.5px}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap}
th{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);font-weight:500}
td{font-family:var(--mono);font-variant-numeric:tabular-nums}
tr:last-child td{border-bottom:0}
tbody tr.new{animation:flash 1.8s ease-out}
@keyframes flash{0%{background:rgba(63,216,255,.14)}100%{background:transparent}}
.oracle-feed{background:var(--panel);overflow:hidden}
.orow{display:grid;grid-template-columns:1.05fr 1.35fr .6fr .7fr 1fr 1.25fr .85fr;gap:12px;align-items:center;padding:13px 18px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:13px;font-variant-numeric:tabular-nums;white-space:nowrap}
.orow>span{overflow:hidden;text-overflow:ellipsis;min-width:0}
.ohead{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim);background:var(--void);position:relative;z-index:2}
.oview{height:calc(6 * 47px);overflow:hidden;position:relative;-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 9%,#000 88%,transparent 100%);mask-image:linear-gradient(180deg,transparent 0,#000 9%,#000 88%,transparent 100%)}
.otrack{will-change:transform}
.otrack .orow{height:47px;padding-top:0;padding-bottom:0;transition:background .3s}
.otrack .orow:hover{background:rgba(63,216,255,.06)}
.otrack .orow.today{color:#fff}
.otrack .orow.today .s{color:var(--q)}
.oracle-feed .s{color:var(--q)}
.ofoot{display:flex;justify-content:space-between;gap:12px;padding:10px 18px;border-top:1px solid var(--line);font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);background:var(--void)}
.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ok);margin-right:8px;vertical-align:1px;box-shadow:0 0 8px var(--ok);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{50%{opacity:.35}}
@media (max-width:760px){.orow{grid-template-columns:1.1fr 1.3fr .7fr 1.1fr 1.2fr;gap:10px;padding-left:12px;padding-right:12px;font-size:12px}.c-shots,.c-check{display:none}}
@media (max-width:480px){.orow{grid-template-columns:1.05fr 1.25fr .7fr 1.15fr;font-size:11.5px}.c-drand{display:none}.ohead{font-size:9.5px;letter-spacing:.1em}.ofoot{font-size:9.5px;letter-spacing:.06em;padding:10px 12px}.ofoot span{white-space:nowrap}}
.match{color:var(--ok)}
.match::before{content:"● ";font-size:9px;vertical-align:2px}

.draw{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.draw>div{background:var(--panel);padding:clamp(18px,2.6vw,28px);min-width:0}
.rules{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:16px}
.rules li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;font-size:15px;color:#b8c6d6;font-weight:300}
.rules li span:first-child{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--q);padding-top:4px}
.roster{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:18px}
.slot{font-family:var(--mono);font-size:12px;padding:12px 10px;background:var(--void);color:var(--dim);transition:background .1s,color .1s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.slot.on{background:#0c2233;color:var(--text)}
.slot.win{background:var(--q)!important;color:#021018}
.drawbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px}
.calc{font-family:var(--mono);font-size:12.5px;color:var(--dim)}
.calc b{color:var(--text);font-weight:500}

pre{margin:0;overflow-x:auto;padding:24px;font:13.5px/1.8 var(--mono);color:#c6d3e2}
.k{color:var(--wire)} .s{color:var(--q)} .c{color:#4d6178}

.cmp td,.cmp th{white-space:normal;vertical-align:top}
.cmp td{font-family:var(--sans);font-size:15px;font-weight:300}
.cmp td:last-child{color:var(--text);font-weight:400}
.cmp td:not(:first-child):not(:last-child){color:var(--dim)}
.cmp th:last-child{color:var(--q)}

details{border-bottom:1px solid var(--line);padding-block:18px}
summary{cursor:pointer;list-style:none;font-size:18px;font-weight:400;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);color:var(--q)}
details[open] summary::after{content:"−"}
details p{color:var(--dim);margin-top:10px;max-width:72ch;font-weight:300}

footer{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-family:var(--mono);font-size:11.5px;color:var(--dim)}

.real{display:inline-block;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:#021018;background:var(--ok);padding:2px 6px;margin-left:8px;vertical-align:1px}
.orow.isreal{background:rgba(63,224,176,.06)}

/* 05 certificate */
.certgrid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(20px,4vw,48px);align-items:center}
.certstage{perspective:1100px;display:flex;justify-content:center}
.cert{width:min(100%,400px);border:1px solid #2a4560;background:linear-gradient(160deg,#0b1826 0%,#050b13 60%,#0a1420 100%);padding:18px;transform-style:preserve-3d;transition:transform .25s ease-out;position:relative;box-shadow:0 30px 80px -30px rgba(63,216,255,.35)}
.cert::before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,transparent 30%,rgba(63,216,255,.10) 45%,rgba(255,255,255,.08) 50%,transparent 62%);background-size:250% 100%;background-position:var(--shine,100%) 0;mix-blend-mode:screen}
.cert-top{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--dim);text-transform:uppercase}
.cert-top b{color:var(--q);font-weight:500}
.cert svg{display:block;width:100%;height:auto;margin:10px 0}
.cert dl{display:grid;grid-template-columns:auto minmax(0,1fr);gap:6px 14px;margin:0;font-family:var(--mono);font-size:11px}
.cert dt{color:var(--dim);text-transform:uppercase;letter-spacing:.1em}
.cert dd{margin:0;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:right}
.barcode{display:flex;gap:1px;height:22px;margin-top:12px}
.barcode i{flex:1;background:var(--q);opacity:.85}
.barcode i.o{background:#132739}
.points{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:14px}
.points li{display:grid;grid-template-columns:28px minmax(0,1fr);gap:12px;color:#b8c6d6;font-weight:300}
.points li b{font-family:var(--mono);color:var(--q);font-weight:500;font-size:13px;padding-top:2px}

/* 06 lab vote */
.exps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.exp{background:var(--panel);padding:clamp(18px,2.4vw,26px);display:flex;flex-direction:column;gap:12px;min-width:0}
.exp h3{font-size:19px;font-weight:400}
.exp .ket{color:var(--q);font-size:18px}
.exp p{color:var(--dim);font-size:14.5px;font-weight:300}
.exp .meta{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.exp .meta div{background:var(--void);padding:8px 10px;min-width:0}
.exp .meta b{display:block;font-family:var(--mono);font-weight:500;font-size:15px;font-variant-numeric:tabular-nums}
.vbar{height:6px;background:#0d1b29;position:relative;overflow:hidden}
.vbar i{position:absolute;inset:0 auto 0 0;background:linear-gradient(90deg,var(--wire),var(--q));transition:width .6s cubic-bezier(.2,.8,.2,1)}
.vrow{display:flex;justify-content:space-between;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;color:var(--dim);margin-top:auto}
.vbtn{font:500 12px/1 var(--mono);letter-spacing:.08em;padding:10px 14px;background:transparent;color:var(--text);border:1px solid var(--line);cursor:pointer}
.vbtn:hover,.vbtn.on{border-color:var(--q);color:var(--q)}

/* 07 weather */
.wx{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.wx>div{background:var(--panel);padding:clamp(16px,2.6vw,28px);min-width:0}
.wxrow{display:grid;grid-template-columns:120px minmax(0,1fr) 92px;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:13px}
.wxrow:last-child{border-bottom:0}
.wxtrack{position:relative;height:18px;background:#0b1622}
.wxtrack .fill{position:absolute;inset:4px auto 4px 0;background:linear-gradient(90deg,var(--wire),var(--q));transition:width 1.2s cubic-bezier(.2,.8,.2,1)}
.wxtrack .err{position:absolute;top:1px;bottom:1px;border-left:1px solid #fff;border-right:1px solid #fff;opacity:.8}
.wxtrack .mk{position:absolute;top:-4px;bottom:-4px;width:1px;background:var(--dim)}
.wxtrack .mk.q{background:var(--hot)}
.wxscale{display:grid;grid-template-columns:120px minmax(0,1fr) 92px;gap:14px;font-family:var(--mono);font-size:10.5px;color:var(--dim);margin-top:8px}
.wxscale div{position:relative;height:14px}
.wxscale span{position:absolute;transform:translateX(-50%);white-space:nowrap}

/* 08 buyback */
.bbgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.bbgrid>div{background:var(--panel);padding:clamp(16px,2.6vw,28px);min-width:0}
.bblist{font-family:var(--mono);font-size:12px;line-height:2;color:var(--dim);height:calc(8 * 24px);overflow:hidden;margin-top:14px;-webkit-mask-image:linear-gradient(180deg,#000 70%,transparent);mask-image:linear-gradient(180deg,#000 70%,transparent)}
.bblist div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bblist div:first-child{color:var(--text)}
.bblist .hit{color:var(--q)}
.bbstats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:18px}
.bbstats div{background:var(--void);padding:12px;min-width:0}
.bbstats b{display:block;font-family:var(--mono);font-weight:500;font-size:17px;font-variant-numeric:tabular-nums;overflow:hidden;text-overflow:ellipsis}

/* 11 docs */
.docs{display:grid;grid-template-columns:220px minmax(0,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.docnav{background:var(--void);display:flex;flex-direction:column;padding:10px 0}
.docnav button{font:500 12.5px/1.3 var(--mono);letter-spacing:.06em;text-align:left;padding:12px 18px;background:none;border:0;border-left:2px solid transparent;color:var(--dim);cursor:pointer}
.docnav button:hover{color:var(--text)}
.docnav button[aria-selected="true"]{color:var(--q);border-left-color:var(--q);background:#08131f}
.docpane{background:var(--panel);padding:clamp(18px,3vw,32px);min-width:0}
.docpane[hidden]{display:none}
.docpane h3{font-size:20px;font-weight:400;margin-bottom:10px}
.docpane p,.docpane li{color:#b8c6d6;font-weight:300;font-size:15.5px}
.docpane p+p{margin-top:10px}
.docpane ol,.docpane ul{padding-left:20px;margin:12px 0;display:grid;gap:8px}
.docpane pre{border:1px solid var(--line);background:var(--void);margin-top:14px;font-size:12.5px;padding:18px}
.docpane code{font-family:var(--mono);font-size:.92em;color:var(--q)}
.fields{width:100%;border-collapse:collapse;min-width:0;margin-top:14px;font-size:13px}
.fields td,.fields th{white-space:normal;padding:9px 12px;vertical-align:top}
.fields td:first-child{color:var(--q)}
.fields td:nth-child(2){color:var(--dim)}
.fields td:last-child{font-family:var(--sans);font-weight:300;color:#b8c6d6}
.uses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:16px}
.uses div{background:var(--void);padding:16px}
.uses b{display:block;font-weight:500;margin-bottom:6px}
.uses p{font-size:14px!important;color:var(--dim)!important}
.draft{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#ffcf6b;border:1px solid #5a4a22;padding:4px 8px;display:inline-block;margin-bottom:14px}

/* 01 quantum clock */
.clock{padding:clamp(16px,2.6vw,28px);display:grid;gap:22px}
.clockbar{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.clockinfo{background:var(--void);padding:12px 14px;min-width:0}
.clockinfo b{display:block;font-family:var(--mono);font-weight:500;font-size:18px;font-variant-numeric:tabular-nums;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.day{position:relative;height:96px;margin:6px 4px 0}
.day .rail{position:absolute;left:0;right:0;top:44px;height:8px;background:#0c1826;border:1px solid var(--line)}
.day .band{position:absolute;top:44px;height:8px;background:linear-gradient(90deg,rgba(58,109,255,.55),rgba(63,216,255,.35))}
.day .tick{position:absolute;top:58px;transform:translateX(-50%);font-family:var(--mono);font-size:10.5px;color:var(--dim)}
.day .tick::before{content:"";position:absolute;left:50%;top:-8px;width:1px;height:6px;background:var(--line)}
.day .ev{position:absolute;top:0;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:4px;cursor:pointer;background:none;border:0;padding:0;color:var(--text);font:inherit}
.day .ev span{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;white-space:nowrap;color:var(--dim);transition:color .2s}
.day .ev i{width:12px;height:12px;border:2px solid var(--q);background:var(--void);transform:rotate(45deg);margin-top:26px;transition:background .2s,box-shadow .2s}
.day .ev.q i{border-style:dashed;border-color:var(--wire)}
.day .ev:hover span,.day .ev.on span{color:var(--text)}
.day .ev:hover i,.day .ev.on i{background:var(--q);box-shadow:0 0 14px var(--q)}
.day .now{position:absolute;top:30px;bottom:18px;width:2px;background:#fff;box-shadow:0 0 10px #fff;transform:translateX(-1px)}
.day .now::after{content:"now";position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);font-family:var(--mono);font-size:10px;color:#fff}
.zoom{border-top:1px solid var(--line);padding-top:18px}
.flow{list-style:none;margin:14px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;position:relative}
.flow li{position:relative;background:var(--void);border:1px solid var(--line);padding:14px 12px;cursor:pointer;transition:border-color .25s,background .25s;min-width:0}
.flow li:hover,.flow li.on{border-color:var(--q);background:#08131f}
.flow li.pulse{border-color:#fff;box-shadow:0 0 18px rgba(63,216,255,.35)}
.flow li:not(:last-child)::after{content:"→";position:absolute;right:-10px;top:50%;transform:translate(50%,-50%);color:var(--q);font-family:var(--mono);font-size:13px;z-index:1}
.flow b{display:block;font-family:var(--mono);font-size:11px;color:var(--q);letter-spacing:.08em}
.flow strong{display:block;font-weight:500;font-size:15px;margin-top:6px}
.flow small{display:block;color:var(--dim);font-size:12.5px;margin-top:4px;line-height:1.45}
.ckdetail{border:1px solid var(--line);background:#07111c;padding:16px 18px;min-height:76px;display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 16px;align-items:start}
.ckdetail b{font-family:var(--mono);color:var(--q);font-weight:500;font-size:13px;padding-top:2px}
.ckdetail strong{font-weight:500}
.ckdetail p{grid-column:2;color:#b8c6d6;font-weight:300;font-size:15px}

/* 02 three experiments */
.xgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.xcard{border:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;min-width:0;position:relative;transition:border-color .25s,transform .25s}
.xcard:hover{border-color:#2b5f8f;transform:translateY(-3px)}
.xcard .xviz{display:block;width:100%;height:auto;background:radial-gradient(80% 90% at 50% 40%,#0b1a2a,#050b13 75%);border-bottom:1px solid var(--line)}
.xbody{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.xtag{display:flex;gap:8px;flex-wrap:wrap}
.xtag span{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;border:1px solid var(--line);padding:3px 8px;color:var(--dim)}
.xtag span.q{color:var(--q);border-color:#1f4a66}
.xcard h3{font-size:24px;font-weight:300;letter-spacing:-.01em}
.xcard .ket{color:var(--q);font-size:17px}
.xcard p{color:#b8c6d6;font-weight:300;font-size:15px}
.xcard .like{color:var(--dim);font-size:14px;border-left:2px solid var(--wire);padding-left:10px}
.xstats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.xstats div{background:var(--void);padding:9px 10px;min-width:0}
.xstats b{display:block;font-family:var(--mono);font-weight:500;font-size:17px;font-variant-numeric:tabular-nums}
.xstats div.today b{color:var(--q)}
.xstats .label{font-size:9.5px;letter-spacing:.1em}
.xstats small{display:block;font-family:var(--mono);font-size:10px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 05 certificate gallery */
.certgal{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(18px,3vw,36px);margin-bottom:30px}
.certcol{display:flex;flex-direction:column;align-items:center;gap:12px;perspective:1100px;min-width:0}
.certcap{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim)}
.certcap b{color:var(--q);font-weight:500}
.points.cols{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 28px}

@media (max-width:960px){
  .xgrid,.certgal,.points.cols{grid-template-columns:minmax(0,1fr)}
  .flow{grid-template-columns:minmax(0,1fr)}
  .flow li:not(:last-child)::after{content:"↓";right:auto;left:50%;top:auto;bottom:-10px;transform:translate(-50%,50%)}
  .ckdetail{grid-template-columns:minmax(0,1fr)}
  .ckdetail p{grid-column:1}
}
@media (max-width:560px){
  .day .ev span{font-size:9.5px}
  .day .ev:nth-of-type(even) span{transform:translateY(-14px)}
  .clockinfo b{font-size:15px}
  .clockbar{grid-template-columns:repeat(2,minmax(0,1fr))}
  .clockinfo:nth-child(2){grid-column:1/-1;order:3}
  .flow li{padding:10px 12px}
}

@media (max-width:960px){
  .certgrid,.wx,.bbgrid,.docs{grid-template-columns:minmax(0,1fr)}
  .exps{grid-template-columns:minmax(0,1fr)}
  .docnav{flex-direction:row;overflow-x:auto;padding:0}
  .docnav button{border-left:0;border-bottom:2px solid transparent;white-space:nowrap}
  .docnav button[aria-selected="true"]{border-bottom-color:var(--q)}
  .uses{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:560px){
  .wxrow,.wxscale{grid-template-columns:84px minmax(0,1fr) 70px;gap:10px;font-size:11.5px}
}
@media (max-width:960px){
  .hero-copy,.head,.physics,.draw{grid-template-columns:minmax(0,1fr)}
  .legend-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  nav{display:none}
}
@media (max-width:560px){
  .legend-row{grid-template-columns:minmax(0,1fr)}
  .roster{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rules li{grid-template-columns:minmax(0,1fr);gap:2px}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}html{scroll-behavior:auto}}

/* multi-page: current page in the nav, and a scrollable page bar on small screens */
header nav a[aria-current="page"]{color:var(--q)}
.pagebar{display:none}
@media (max-width:860px){.pagebar{display:flex;gap:18px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:10px 16px;border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;white-space:nowrap;scrollbar-width:none}
  .pagebar::-webkit-scrollbar{display:none}.pagebar a{color:var(--dim)}.pagebar a[aria-current="page"]{color:var(--q)}}
.explore{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.explore a{background:var(--panel);padding:20px;display:flex;flex-direction:column;gap:6px;color:var(--text);min-width:0}
.explore a:hover{background:#0e1622;text-decoration:none}.explore b{font-weight:400;font-size:18px}.explore span{color:var(--dim);font-size:14px}
@media (max-width:760px){.explore{grid-template-columns:1fr}}