/* Layout: a living graph fills the viewport behind everything; content floats on it as quiet glass panels, one view per route (#home, #about, #team). Single dark world by choice. */
:root{
  --void:#060a12;        /* background: deep ink */
  --panel:rgba(12,18,30,.72);
  --line:#22304a;        /* edges, rules */
  --ice:#e8eef8;         /* primary text, nodes */
  --mist:#93a1b8;        /* secondary text */
  --signal:#ffb257;      /* the one warm accent: signal travelling on an edge */
  --tide:#7fd3e6;        /* cool secondary, sparing */
  --f-display:"Unbounded","Arial Black",system-ui,sans-serif;
  --f-body:"Instrument Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html,body{background:var(--void);color:var(--ice)}
body{font-family:var(--f-body);font-size:17px;line-height:1.65;overflow-x:hidden;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--void)}
#graph{position:fixed;inset:0;width:100%;height:100%;z-index:0;display:block}
.veil{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse 80% 60% at 30% 35%,transparent 0,rgba(6,10,18,.55) 70%,rgba(6,10,18,.85) 100%)}
a{color:var(--ice)}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px;border-radius:4px}

/* nav */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;margin-inline:auto;max-width:1120px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:18px}
.mark{font-family:var(--f-display);font-weight:500;font-size:18px;letter-spacing:.02em;text-decoration:none;white-space:nowrap}
.mark i{font-style:normal;color:var(--signal)}
nav{display:flex;gap:4px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:4px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
nav a{font-family:var(--f-mono);font-size:13px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;color:var(--mist);padding:7px 14px;border-radius:999px;transition:color .2s,background .2s}
nav a:hover{color:var(--ice)}
nav a[aria-current="page"]{color:var(--void);background:var(--ice)}

main{position:relative;z-index:1;max-width:1120px;margin-inline:auto;padding-block:24px 80px}
.view{display:flex;flex-direction:column;gap:96px}
.view[hidden]{display:none!important}

.eyebrow{font-family:var(--f-mono);font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--tide);display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--tide);box-shadow:0 0 10px var(--tide)}
h1,h2,h3{font-family:var(--f-display);font-weight:500;text-wrap:balance;margin:0;line-height:1.08}
h2{font-size:clamp(28px,4vw,44px);letter-spacing:-.01em}
h3{font-size:19px;letter-spacing:.005em;line-height:1.3}
p{margin:0;max-width:64ch;color:var(--mist)}
p strong{color:var(--ice);font-weight:600}
.lede{font-size:clamp(18px,2vw,21px);color:var(--ice);opacity:.88}
.stack{display:flex;flex-direction:column;gap:20px;min-width:0}

/* hero */
.hero{padding-top:min(10vh,90px);display:flex;flex-direction:column;gap:28px}
.formula{font-family:var(--f-display);font-weight:300;font-size:clamp(60px,13vw,168px);letter-spacing:-.03em;line-height:.95;margin:0}
.formula b{font-weight:700}
.formula .v{color:var(--ice)}
.formula .e{color:var(--signal)}
.formula .p{color:var(--mist);opacity:.6}
.hero h1{font-size:clamp(24px,3.4vw,38px);max-width:22ch}
.live{display:flex;flex-wrap:wrap;gap:8px 22px;font-family:var(--f-mono);font-size:13px;color:var(--mist);font-variant-numeric:tabular-nums}
.live span b{color:var(--ice);font-weight:500}
.live .dot{width:8px;height:8px;border-radius:50%;background:var(--signal);display:inline-block;margin-right:8px;animation:blink 2.4s infinite}
@keyframes blink{50%{opacity:.25}}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.btn{font-family:var(--f-mono);font-size:13.5px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:13px 20px;border-radius:999px;border:1px solid var(--line);background:var(--panel);color:var(--ice);cursor:pointer;transition:border-color .2s,transform .2s}
.btn:hover{border-color:var(--signal);transform:translateY(-1px)}
.btn.primary{background:var(--signal);color:var(--void);border-color:var(--signal);font-weight:500}

/* definitions */
.defs{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:20px}
.def{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:12px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);min-width:0}
.sym{font-family:var(--f-display);font-size:42px;font-weight:300;line-height:1}
.sym.e{color:var(--signal)}
.def code{font-family:var(--f-mono);font-size:13px;color:var(--tide)}

/* paper */
.paper{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:40px;align-items:start;
  border-top:1px solid var(--line);padding-top:40px}
@media (max-width:820px){.paper{grid-template-columns:1fr}}
.meta{display:grid;grid-template-columns:auto 1fr;gap:10px 18px;font-family:var(--f-mono);font-size:13px;margin:0}
.meta dt{color:var(--mist);text-transform:uppercase;letter-spacing:.08em;font-size:11.5px;padding-top:2px}
.meta dd{margin:0;color:var(--ice)}
.status{display:inline-flex;align-items:center;gap:8px;color:var(--signal)}
.status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal)}
.pillars{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;background:var(--panel);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.pillars li{padding:20px 24px;display:grid;grid-template-columns:28px 1fr;gap:4px 14px;border-bottom:1px solid var(--line)}
.pillars li:last-child{border-bottom:0}
.pillars .k{font-family:var(--f-mono);font-size:12px;color:var(--signal);padding-top:4px}
.pillars h3{font-size:16px}
.pillars p{grid-column:2;font-size:15px}

/* directions */
.dirs{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.dir{background:rgba(8,13,22,.88);padding:26px;display:flex;flex-direction:column;gap:10px;min-width:0}
.dir .tag{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--tide)}
.dir p{font-size:15px}

/* contact */
.contact{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:clamp(28px,5vw,56px);display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:end;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
@media (max-width:760px){.contact{grid-template-columns:1fr;align-items:start}}
.mail{font-family:var(--f-mono);font-size:clamp(15px,2vw,19px);color:var(--ice);word-break:break-all;user-select:all}
.mailrow{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.toast{font-family:var(--f-mono);font-size:12.5px;color:var(--signal);min-height:1em}

/* about */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px}
@media (max-width:820px){.split{grid-template-columns:1fr;gap:28px}}
.values{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:20px}
.value{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:10px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.value .deg{font-family:var(--f-mono);font-size:12px;color:var(--mist);display:flex;justify-content:space-between}
.value .deg b{color:var(--signal);font-weight:500}
.value p{font-size:15.5px}
.timeline{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:0;border-left:1px solid var(--line);margin-left:6px}
.timeline li{position:relative;padding:0 0 26px 26px;display:flex;flex-direction:column;gap:4px}
.timeline li::before{content:"";position:absolute;left:-6px;top:6px;width:11px;height:11px;border-radius:50%;background:var(--void);border:2px solid var(--tide)}
.timeline li.now::before{border-color:var(--signal);background:var(--signal);box-shadow:0 0 12px var(--signal)}
.timeline .when{font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--mist)}
.timeline h3{font-size:16px}
.timeline p{font-size:15px}

/* team */
.founder{display:grid;grid-template-columns:260px minmax(0,1fr);gap:44px;align-items:start}
@media (max-width:760px){.founder{grid-template-columns:1fr;gap:28px}}
.portrait{margin:0;aspect-ratio:4/5;max-width:100%;width:260px;border-radius:24px;border:1px solid var(--line);background:var(--panel);position:relative;overflow:hidden}
.portrait img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.75) contrast(1.06) brightness(.92);transition:filter .5s,transform .8s cubic-bezier(.2,.7,.2,1)}
.portrait::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(180deg,rgba(6,10,18,.05) 40%,rgba(6,10,18,.85) 100%),linear-gradient(160deg,rgba(127,211,230,.14),rgba(255,178,87,.10));transition:opacity .5s}
.portrait canvas{position:absolute;inset:0;width:100%;height:100%;z-index:2;mix-blend-mode:screen;opacity:.55;transition:opacity .5s}
.portrait figcaption{position:absolute;left:16px;bottom:14px;z-index:3;font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--signal)}
.portrait:hover img{filter:none;transform:scale(1.03)}
.portrait:hover canvas{opacity:.15}
.portrait:hover::before{opacity:.6}
.role{font-family:var(--f-mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--signal)}
.founder h2{font-size:clamp(32px,5vw,54px)}
.chips{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.chips li{font-family:var(--f-mono);font-size:12.5px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--mist);background:rgba(8,13,22,.6)}
.open{border:1px dashed var(--line);border-radius:18px;padding:28px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center}
@media (max-width:700px){.open{grid-template-columns:1fr}}

footer{position:relative;z-index:1;max-width:1120px;margin-inline:auto;padding-block:28px 40px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-family:var(--f-mono);font-size:12.5px;color:var(--mist)}

.fade{animation:rise .7s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{transform:translateY(14px);opacity:.001}to{transform:none;opacity:1}}

/* real-graph data */
.graphs{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:20px}
.gcard{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:12px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);min-width:0}
.gcard.live-card{border-color:rgba(255,178,87,.45)}
.gsrc{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--tide)}
.live-card .gsrc{color:var(--signal)}
.nums{display:grid;grid-template-columns:1fr auto;gap:8px 16px;margin:0;font-variant-numeric:tabular-nums}
.nums dt{font-family:var(--f-mono);font-size:12px;color:var(--mist);text-transform:uppercase;letter-spacing:.06em;padding-top:4px}
.nums dd{margin:0;font-family:var(--f-display);font-weight:400;font-size:20px;text-align:right;color:var(--ice)}
.logbars{display:flex;flex-direction:column;gap:12px;padding:24px;border:1px solid var(--line);border-radius:18px;background:rgba(8,13,22,.7)}
.lb{display:grid;grid-template-columns:minmax(110px,180px) minmax(0,1fr) 70px;gap:14px;align-items:center;font-family:var(--f-mono);font-size:12.5px;color:var(--mist)}
.lb b{color:var(--ice);font-weight:500;text-align:right}
.bar{height:8px;border-radius:99px;background:rgba(60,82,118,.35);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:var(--ice);transition:width .6s}
.bar i.est{background:repeating-linear-gradient(90deg,var(--mist) 0 6px,transparent 6px 10px)}
#barLive{background:var(--signal);box-shadow:0 0 10px var(--signal)}
.axis{font-family:var(--f-mono);font-size:11.5px;max-width:none}
@media (max-width:560px){.lb{grid-template-columns:1fr 60px}.lb .bar{grid-column:1/-1;grid-row:2}}
/* experiment */
.exp{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:760px){.exp{grid-template-columns:1fr}}
.sys{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:10px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.sys .tag{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--mist)}
.sys.b{border-color:rgba(127,211,230,.45)}.sys.b .tag{color:var(--tide)}
.eq{grid-column:1/-1;border-top:1px solid var(--line);padding-top:24px;display:flex;flex-direction:column;gap:14px}
.eq .big{font-family:var(--f-display);font-weight:300;font-size:clamp(26px,4.5vw,46px);color:var(--ice);max-width:none}
.eq .big sub{font-size:.42em;color:var(--signal)}
.principle{margin:0;font-family:var(--f-display);font-weight:300;font-size:clamp(20px,2.6vw,28px);line-height:1.35;color:var(--ice);max-width:34ch;border-left:2px solid var(--signal);padding-left:22px}
.paper em{color:var(--ice)}
/* ---- cursor interactions (fine pointers only; enabled by JS adding .fx) ---- */
.ch{display:inline-block;will-change:transform;transition:color .35s}
.fx body,.fx a,.fx button{cursor:none}
.cur,.cur-dot{position:fixed;left:0;top:0;z-index:50;pointer-events:none;border-radius:50%;opacity:0;transition:opacity .3s}
.fx .cur,.fx .cur-dot{opacity:1}
.cur{width:38px;height:38px;margin:-19px 0 0 -19px;border:1px solid rgba(232,238,248,.55);transition:width .25s,height .25s,margin .25s,border-color .25s,background .25s,opacity .3s;display:grid;place-items:center}
.cur-dot{width:6px;height:6px;margin:-3px 0 0 -3px;background:var(--signal);box-shadow:0 0 10px var(--signal)}
.cur em{font-style:normal;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.08em;color:var(--void);opacity:0;transition:opacity .2s;white-space:nowrap}
.cur.hot{width:72px;height:72px;margin:-36px 0 0 -36px;border-color:var(--signal);background:var(--signal)}
.cur.hot em{opacity:1}
.cur.text{border-color:var(--tide);width:90px;height:90px;margin:-45px 0 0 -45px}
.tilt{transform-style:preserve-3d;transition:transform .5s cubic-bezier(.2,.7,.2,1);position:relative}
.tilt::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .4s;
  background:radial-gradient(260px circle at var(--mx,50%) var(--my,50%),rgba(255,178,87,.13),transparent 65%)}
.tilt.lit::after{opacity:1}
.mag{transition:transform .35s cubic-bezier(.2,.7,.2,1),border-color .2s,color .2s,background .2s}
@media (prefers-reduced-motion:reduce){.fade,.live .dot{animation:none}.btn{transition:none}}
@media (max-width:520px){nav a{padding:7px 10px;font-size:12px}.mark{font-size:16px}header{padding-block:12px}}

/* ===== multi-page additions ===== */
nav{overflow-x:auto;scrollbar-width:none;max-width:100%}
nav::-webkit-scrollbar{display:none}
nav a{white-space:nowrap}
.view{display:flex;flex-direction:column;gap:96px}
.crumbs{font-family:var(--f-mono);font-size:12.5px;color:var(--mist);display:flex;flex-wrap:wrap;gap:8px}
.crumbs a{color:var(--mist);text-decoration:none}.crumbs a:hover{color:var(--ice)}
.crumbs span[aria-hidden]{opacity:.5}
.updated{font-family:var(--f-mono);font-size:12.5px;color:var(--mist)}
/* long-form reading */
.article{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;align-items:start}
@media (max-width:900px){.article{grid-template-columns:1fr}}
.prose{display:flex;flex-direction:column;gap:18px;min-width:0;max-width:70ch}
.prose h2{font-size:clamp(22px,2.6vw,30px);margin-top:28px}
.prose h3{margin-top:10px}
.prose p,.prose li{color:#b4c0d3;font-size:17.5px}
.prose ul,.prose ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:8px}
.prose a{color:var(--signal);text-underline-offset:3px}
.prose code,.mathline{font-family:var(--f-mono);font-size:.92em;color:var(--tide)}
.mathline{display:block;padding:16px 20px;border:1px solid var(--line);border-radius:12px;background:rgba(8,13,22,.75);overflow-x:auto;font-size:15px;white-space:nowrap}
.callout{border:1px solid rgba(255,178,87,.4);border-radius:18px;padding:24px;background:var(--panel);display:flex;flex-direction:column;gap:10px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.callout .eyebrow{color:var(--signal)}.callout .eyebrow::before{background:var(--signal);box-shadow:0 0 10px var(--signal)}
.aside{position:sticky;top:calc(env(safe-area-inset-top,0px) + 90px);display:flex;flex-direction:column;gap:14px;border:1px solid var(--line);border-radius:18px;padding:22px;background:var(--panel);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
@media (max-width:900px){.aside{position:static}}
.aside h2{font-size:14px;font-family:var(--f-mono);font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--mist)}
.aside ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.aside a{color:var(--ice);text-decoration:none;font-size:15px;line-height:1.4}
.aside a:hover{color:var(--signal)}
.refs{font-size:14.5px!important}
.refs li{color:var(--mist)!important;font-size:14.5px!important}
/* topic / note cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:20px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ice);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:border-color .25s}
.card:hover{border-color:var(--signal)}
.card .tag{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--tide)}
.card p{font-size:15.5px}
.card .go{font-family:var(--f-mono);font-size:12.5px;color:var(--signal);margin-top:auto}
/* FAQ */
.faq{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;background:var(--panel);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;list-style:none;padding:22px 26px;font-family:var(--f-display);font-weight:400;font-size:18px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--f-mono);color:var(--signal);font-size:22px;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 26px 24px;display:flex;flex-direction:column;gap:12px}
.faq .ans a{color:var(--signal)}
/* footer */
footer{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,180px),1fr));gap:28px}
footer h2{font-family:var(--f-mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--mist);font-weight:500;margin-bottom:10px}
footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
footer a{color:var(--ice);text-decoration:none}footer a:hover{color:var(--signal)}
footer .fine{grid-column:1/-1;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:20px}
.fmark{font-family:var(--f-display);font-size:22px;color:var(--ice)}.fmark i{font-style:normal;color:var(--signal)}

@media (max-width:560px){header{flex-wrap:wrap;gap:10px}header nav{width:100%;justify-content:space-between}header nav a{padding:7px 6px;font-size:10.5px;letter-spacing:.02em}header nav{gap:0}}