/* Colosseum — The Occupied Darkness, v2: the arena is the ground of every page.
   Every text colour is OPAQUE. Content sits on glass panels at rgba(7,12,20,.86): measured against the
   brightest pixel the scene can put behind a panel (a fully lit tier), the worst case is primary 12.8,
   secondary 8.2, tertiary 5.9 — every token passes AA. Below .86 the tertiary fails. */
:root{
  --void:#070C14; --surface:#0D1521; --raised:#111C2B;
  --stone:#344356; --rule:#2B3B50; --edge:#637A96;
  --t1:#EDF3FB; --t2:#B7C6DA; --t3:#95A9C3;
  --arc:#79B8FF; --core:#D8EAFF; --warn:#F0C287; --danger:#FF9DAB;
  --glass:rgba(7,12,20,.86); --glass-rule:rgba(99,122,150,.34);
  --maxw:1240px; --gut:56px; --hdr:72px;
  --display:'Barlow Condensed',system-ui,sans-serif;
  --body:'Manrope',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
[hidden]{display:none!important}
html{background:var(--void)}
body{
  background:var(--void);color:var(--t1);font-family:var(--body);
  font-size:16px;line-height:25px;-webkit-font-smoothing:antialiased;min-height:100vh;
  padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);
}
a{color:var(--arc);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--arc);outline-offset:3px}
.num{font-variant-numeric:tabular-nums lining-nums;letter-spacing:-.025em}
.label{font-family:var(--display);font-weight:500;font-size:12px;line-height:16px;letter-spacing:.16em;text-transform:uppercase;color:var(--t3)}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gut)}

/* ── the scene: fixed, behind everything ────────────────────────────────── */
.scene{position:fixed;inset:0;z-index:0;background:var(--void)}
.scene canvas,.scene img.still{position:absolute;inset:0;width:100%;height:100%;display:block}
.scene img.still{object-fit:cover}
/* a scrim only where text sits over bare scene: the hero column on the left and the foot of the page */
.vignette{position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(7,12,20,.80) 0,rgba(7,12,20,.52) 34%,rgba(7,12,20,0) 62%),
    linear-gradient(0deg,rgba(7,12,20,.85) 0,rgba(7,12,20,0) 30%),
    linear-gradient(180deg,rgba(7,12,20,.55) 0,rgba(7,12,20,0) 22%);
  transition:opacity .9s ease}
.hdr,main,footer,.instrument{position:relative;z-index:1}

.glass{background:var(--glass);border:1px solid var(--glass-rule);
  -webkit-backdrop-filter:blur(14px) saturate(1.1);backdrop-filter:blur(14px) saturate(1.1)}

/* ── header ─────────────────────────────────────────────────────────────── */
.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:var(--glass);border-bottom:1px solid var(--glass-rule);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.hdr .in{height:var(--hdr);display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;color:var(--t1)}
.brand:hover{text-decoration:none}
.brand img{width:34px;height:34px;display:block}
.brand b{font-family:var(--display);font-weight:500;font-size:19px;letter-spacing:.2em;text-transform:uppercase}
.nav{display:flex;gap:2px;margin:0 auto}
.nav a{font-family:var(--display);font-weight:500;font-size:14px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--t2);padding:0 13px;height:44px;display:flex;align-items:center;border-bottom:2px solid transparent}
.nav a:hover{color:var(--t1);text-decoration:none}
.nav a[aria-current="page"]{color:var(--t1);border-bottom-color:var(--arc)}
.wallet{display:flex;align-items:center;gap:14px}
.net{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t2)}
.dot{width:7px;height:7px;background:var(--edge);display:inline-block}
.dot.on{background:var(--arc)}

/* ── the light instrument: fixed to the right edge while there is room ──── */
.instrument{position:fixed;right:24px;top:calc(var(--hdr) + 40px);bottom:48px;width:62px;display:flex;flex-direction:column;
  align-items:center;gap:10px;padding:14px 0;background:var(--glass);border:1px solid var(--glass-rule)}
.instrument .scale{flex:1;position:relative;width:100%}
.instrument .track{position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--rule)}
.instrument .fill{position:absolute;left:50%;bottom:0;width:3px;margin-left:-1px;height:0;background:var(--arc);box-shadow:0 0 10px var(--arc);transition:height 1.6s cubic-bezier(.33,1,.68,1)}
.instrument .tick{position:absolute;left:calc(50% - 6px);width:13px;height:1px;background:var(--edge)}
.instrument .tlabel{position:absolute;left:calc(50% + 10px);transform:translateY(50%);font-size:10px;line-height:12px;color:var(--t3)}
/* 🔴 positions live here, not in style="" attributes: `style-src 'self'` blocks inline style attributes */
.instrument .at-10{bottom:50%}     /* row 0.10 -> 0.10/(0.10+0.10) */
.instrument .at-100{bottom:90.91%} /* row 1.00 -> 1.00/(1.00+0.10) */
.instrument .num{font-size:15px;font-weight:600;color:var(--t1)}

/* ── the row: on every page, before anything else ───────────────────────── */
main{padding-block:24px 8px}
.rowbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 28px;flex-wrap:wrap}
.rowbar .v{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.rowbar .big{font-size:44px;line-height:48px;font-weight:500;color:var(--t1)}
.rowbar .unit{font-family:var(--display);font-weight:500;font-size:16px;letter-spacing:.14em;text-transform:uppercase;color:var(--t2)}
.rowbar .meta{font-size:13px;line-height:18px;color:var(--t3);text-align:right}

/* ── pages ──────────────────────────────────────────────────────────────── */
.page{animation:in .5s ease both}
@keyframes in{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.title{font-family:var(--display);font-weight:300;font-size:88px;line-height:84px;letter-spacing:.06em;text-transform:uppercase;color:var(--t1)}
.title.sm{font-size:56px;line-height:56px}
.sub{margin-top:16px;font-size:17px;line-height:27px;color:var(--t2);max-width:560px}

/* arena: the scene is the content, so the hero leaves it room */
.hero{min-height:calc(100vh - var(--hdr) - 250px);display:flex;flex-direction:column;justify-content:center;padding-block:48px 56px;max-width:640px}
.cta-row{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.btn.ghost{background:rgba(7,12,20,.6)}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.facts > div{padding:22px 26px 24px;border-right:1px solid var(--glass-rule);min-width:0}
.facts > div:last-child{border-right:0}
.facts b{display:block;margin-top:6px;font-size:28px;line-height:32px;font-weight:500;color:var(--t1)}
.facts small{display:block;margin-top:2px;font-size:13px;line-height:18px;color:var(--t3)}
.scaleNote{margin-top:12px;padding:14px 26px;font-size:13px;line-height:20px;color:var(--t3)}
.scaleNote b{color:var(--t2);font-weight:600}

/* panels */
.panel{padding:28px 44px 44px}
.phead{padding-block:64px 48px;max-width:640px}
.phead .title{margin-top:10px}

/* buttons and inputs */
.btn{height:48px;padding:0 22px;border:1px solid var(--edge);border-radius:2px;background:transparent;color:var(--t1);
  font-family:var(--display);font-weight:500;font-size:15px;letter-spacing:.12em;text-transform:uppercase;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;white-space:nowrap;transition:background .12s,border-color .12s,color .12s}
.btn:hover:not(:disabled){border-color:var(--t2);text-decoration:none}
.btn.primary{background:var(--t1);color:var(--void);border-color:var(--t1)}
.btn.primary:hover:not(:disabled){background:#fff;border-color:#fff}
.btn.sm{height:36px;padding:0 14px;font-size:13px}
.btn.wide{width:100%;margin-top:12px}
.btn:disabled{background:transparent;color:var(--t3);border-color:var(--rule);cursor:not-allowed}
.linkbtn{background:none;border:0;color:var(--t2);cursor:pointer;font-size:13px}
.linkbtn:hover{color:var(--t1)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.field{display:block;margin-top:24px}
.field .box{margin-top:8px;display:flex;align-items:center;height:56px;border:1px solid var(--edge);border-radius:2px;background:var(--surface);padding:0 10px 0 16px;gap:12px}
.field .box:focus-within{border-color:var(--arc)}
.field input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:22px;font-weight:500;color:var(--t1)}
.field input::placeholder{color:var(--t3)}
.field .suffix{font-family:var(--display);font-weight:500;letter-spacing:.14em;color:var(--t2);font-size:14px}

.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px}
.ledger{margin-top:16px;border-top:1px solid var(--glass-rule)}
.ledger div{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:13px 0;border-bottom:1px solid var(--glass-rule)}
.ledger span{color:var(--t2);font-size:15px}
.ledger b{font-size:17px;font-weight:500;color:var(--t1);text-align:right}
.ledger .est{font-family:var(--display);font-size:11px;letter-spacing:.14em;color:var(--warn);margin-left:8px;text-transform:uppercase;font-style:normal}
.page[data-page="exit"] .btn.wide{margin-top:24px}
.note{margin-top:14px;font-size:14px;line-height:22px;color:var(--t2)}
.note.warn{color:var(--warn)}
.note.bad{color:var(--danger)}
.aside{border-left:1px solid var(--glass-rule);padding:16px 0 0 36px}
.aside h3,.mech h3{font-family:var(--display);font-weight:500;font-size:18px;letter-spacing:.12em;text-transform:uppercase;color:var(--t1)}
.aside h3 + p{margin-top:8px}
.aside p + h3{margin-top:24px}
.aside p,.mech p{color:var(--t2);font-size:15px;line-height:24px}
.aside p + p{margin-top:10px}
details.proof{margin-top:22px;border-top:1px solid var(--glass-rule);padding-top:14px}
details.proof summary{cursor:pointer;color:var(--arc);font-size:14px;list-style:none}
details.proof summary::-webkit-details-marker{display:none}
pre.formula{margin-top:12px;padding:14px 16px;background:var(--surface);border:1px solid var(--rule);font-family:ui-monospace,Menlo,monospace;
  font-size:13px;line-height:21px;color:var(--t1);white-space:pre-wrap;overflow-x:auto}

/* mechanism */
.mech{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.mech section{padding:28px 28px 32px;border-bottom:1px solid var(--glass-rule);border-right:1px solid var(--glass-rule);min-width:0}
.mech section:nth-child(3n+1){padding-left:0}
.mech section:nth-child(3n){border-right:0;padding-right:0}
.mech .n{font-family:var(--display);font-weight:300;font-size:44px;line-height:44px;color:var(--arc)}
.mech h3{margin-top:12px}
.mech p{margin-top:10px}
.mech .warnbox .n,.mech .warnbox h3{color:var(--warn)}
.facts2{margin-top:32px;border-top:1px solid var(--glass-rule)}
.facts2 div{display:grid;grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:20px;padding:13px 0;border-bottom:1px solid var(--glass-rule)}
.facts2 dt{color:var(--t2);font-size:15px}
.facts2 dd{color:var(--t1);font-size:14px;overflow-wrap:anywhere}
.facts2 code{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--t1)}

/* activity */
.acts{margin-top:0}
.act{display:grid;grid-template-columns:150px minmax(0,1fr) auto;gap:20px;align-items:baseline;padding:15px 0;border-bottom:1px solid var(--glass-rule)}
.act .k{font-family:var(--display);font-weight:500;font-size:13px;letter-spacing:.14em;text-transform:uppercase}
.act .k.rose{color:var(--arc)} .act .k.seated{color:var(--t1)} .act .k.exited{color:var(--warn)} .act .k.scattered{color:var(--core)}
.act .d{color:var(--t2);font-size:15px}
.act .d b{color:var(--t1);font-weight:500}
.act .m{font-size:13px;color:var(--t3);text-align:right;white-space:nowrap}
.empty{padding:32px 0 8px;color:var(--t2)}

footer{padding-block:16px 32px}
.foot{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding:14px 26px;font-size:13px;color:var(--t3)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:50;background:var(--raised);border:1px solid var(--edge);
  color:var(--t1);padding:12px 18px;font-size:14px;max-width:calc(100% - 40px);opacity:0;transition:opacity .12s;pointer-events:none}
.toast.show{opacity:1}

/* the instrument only while it cannot touch the content column */
@media (max-width:1399px){.instrument{display:none}}

@media (max-width:1100px){
  :root{--gut:32px}
  .nav a{padding:0 8px;font-size:13px;letter-spacing:.1em}
  .mech{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mech section,.mech section:nth-child(3n+1),.mech section:nth-child(3n){padding:24px 24px 28px;border-right:1px solid var(--glass-rule)}
  .mech section:nth-child(2n+1){padding-left:0}
  .mech section:nth-child(2n){border-right:0;padding-right:0}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .facts > div:nth-child(2){border-right:0}
  .facts > div:nth-child(-n+2){border-bottom:1px solid var(--glass-rule)}
}

/* ── 390 px ─────────────────────────────────────────────────────────────── */
@media (max-width:860px){
  :root{--gut:16px;--hdr:56px}
  .hdr .in{gap:12px;flex-wrap:wrap;height:auto;padding-top:6px}
  .brand b{font-size:16px}
  .net span{display:none}
  .hdr .in > .brand,.hdr .in > .wallet{height:48px}
  .wallet{margin-left:auto}
  .nav{order:9;width:100%;margin:0;justify-content:space-between;border-top:1px solid var(--glass-rule);gap:0;overflow-x:auto}
  .nav a{padding:0 4px;font-size:12px;letter-spacing:.08em;flex:1;justify-content:center}
  main{padding-block:16px 4px}
  .rowbar{padding:14px 18px;gap:6px}
  .rowbar .big{font-size:32px;line-height:36px}
  .rowbar .meta{text-align:left}
  .title{font-size:52px;line-height:52px}
  .title.sm{font-size:38px;line-height:40px}
  .hero{min-height:58vh;padding-block:32px 36px}
  .vignette{background:linear-gradient(0deg,rgba(7,12,20,.9) 0,rgba(7,12,20,.45) 45%,rgba(7,12,20,.25) 100%)}
  .cta-row .btn{flex:1}
  .facts > div{padding:16px 18px}
  .panel{padding:24px 18px 28px}
  .phead{padding-block:40px 28px}
  .split{grid-template-columns:minmax(0,1fr);gap:28px}
  .aside{border-left:0;border-top:1px solid var(--glass-rule);padding:24px 0 0}
  .mech{grid-template-columns:minmax(0,1fr)}
  .mech section,.mech section:nth-child(n){padding:22px 0;border-right:0}
  .facts2 div{grid-template-columns:minmax(0,1fr);gap:4px}
  .act{grid-template-columns:minmax(0,1fr);gap:4px}
  .act .m{text-align:left}
  .foot{padding:14px 18px}
}
@media (max-width:420px){
  .facts{grid-template-columns:minmax(0,1fr)}
  .facts > div{border-right:0!important;border-bottom:1px solid var(--glass-rule)}
  .facts > div:last-child{border-bottom:0}
}
@media (prefers-reduced-motion:reduce){.page{animation:none}.instrument .fill{transition:none}.vignette{transition:none}}