/* ==========================================================================
   Neurovascular 3D Lab
   Tokens, type scale, nav, panels and buttons are inherited unchanged from
   the main site so the Lab reads as another room in the same building.
   ========================================================================== */

:root{
  --ink:#060910;
  --panel:rgba(8,12,20,0.68);
  --line:rgba(232,236,242,0.09);
  --line-strong:rgba(232,236,242,0.16);
  --vessel:#EAF1F8;
  --dim:#94A0B4;
  --faint:#5C6a80;
  --gold:#C9A96A;
  --gold-dim:rgba(201,169,106,0.35);
  --gold-glow:rgba(201,169,106,0.14);
  --art:#EAF3FB;
  --ven:#7FA7C6;
  --danger:#D98A7A;
  --ok:#8FB79A;
  --field:rgba(4,7,12,0.55);
}
*{margin:0;padding:0;box-sizing:border-box}
/* Components that set an explicit display must still honour [hidden]. */
[hidden]{display:none !important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--ink);
  color:var(--vessel);
  font-family:'Manrope',sans-serif;
  font-weight:300;
  line-height:1.7;
  overflow-x:hidden;
  min-height:100vh;
}
::selection{background:var(--gold);color:var(--ink)}
img,svg{max-width:100%}
a{color:inherit}

/* ---------- Angiographic backdrop (shared with the main site) ---------- */
.dsa-stage{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.dsa-stage svg{width:100%;height:100%;display:block}
.dsa-stage path{fill:none;stroke-linecap:round;stroke-linejoin:round}
#arterial path{stroke:var(--art);filter:drop-shadow(0 0 5px rgba(150,190,225,0.45))}
#venous path{stroke:var(--ven);filter:drop-shadow(0 0 5px rgba(110,150,190,0.4))}
.blush{filter:blur(34px)}
.vlabel{font-family:'IBM Plex Mono',monospace;font-size:15px;letter-spacing:3px;fill:var(--gold);opacity:0}
.vlabel-ven{fill:var(--ven)}
.dsa-vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(ellipse 90% 80% at 60% 45%, transparent 30%, rgba(6,9,16,0.55) 100%)}
.dsa-scrim{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(100deg, rgba(6,9,16,0.88) 0%, rgba(6,9,16,0.6) 42%, rgba(6,9,16,0.25) 74%, transparent 100%)}
.dsa-fallback{position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse 70% 60% at 68% 32%, rgba(120,165,205,0.10), transparent 62%),
             radial-gradient(ellipse 60% 50% at 20% 85%, rgba(201,169,106,0.06), transparent 60%)}

/* ---------- HUD micro-label ---------- */
.hud{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;letter-spacing:0.18em;
  text-transform:uppercase;color:var(--faint);font-weight:300}
.hud .tick{color:var(--gold)}
.hud-gold{color:var(--gold)}

/* ---------- Nav ---------- */
nav.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;justify-content:space-between;align-items:center;
  padding:1.4rem 4vw;
  background:linear-gradient(to bottom, rgba(6,9,16,0.9), rgba(6,9,16,0));
  backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
}
nav.site-nav .brand{font-family:'Cormorant Garamond',serif;font-size:1.15rem;letter-spacing:0.08em;
  font-weight:400;text-decoration:none;color:var(--vessel);white-space:nowrap}
nav.site-nav .brand span{color:var(--gold)}
nav.site-nav ul{display:flex;gap:2.1rem;list-style:none;align-items:center}
nav.site-nav a{color:var(--dim);text-decoration:none;font-size:0.78rem;letter-spacing:0.12em;
  text-transform:uppercase;transition:color .3s;white-space:nowrap}
nav.site-nav a:hover,nav.site-nav a:focus-visible{color:var(--vessel)}
nav.site-nav a:focus-visible{outline:1px solid var(--gold);outline-offset:4px}
nav.site-nav a.is-current{color:var(--gold)}
nav.site-nav a.accent{color:var(--gold)}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:0.5rem;z-index:201;flex-shrink:0}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--vessel);transition:transform .32s ease,opacity .32s ease}
.nav-overlay{display:none;position:fixed;inset:0;z-index:200;background:rgba(247,244,239,0.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  flex-direction:column;align-items:center;justify-content:center;padding:5rem 2.5rem 3rem}
.nav-overlay.open{display:flex}
.nav-overlay .ov-brand{font-family:'Cormorant Garamond',serif;font-size:0.95rem;letter-spacing:0.16em;color:#9a8870;margin-bottom:2.4rem}
.nav-overlay .ov-brand span{color:var(--gold)}
.nav-overlay ul{list-style:none;width:100%;max-width:300px;border-top:1px solid rgba(160,140,110,0.25)}
.nav-overlay ul li a{display:block;padding:1.05rem 0;font-family:'Cormorant Garamond',serif;font-size:1.55rem;
  font-weight:300;letter-spacing:0.03em;color:#1c1a14;text-decoration:none;text-transform:none;
  border-bottom:1px solid rgba(160,140,110,0.2);transition:color .25s,padding-left .25s}
.nav-overlay ul li a:hover{color:var(--gold);padding-left:0.4rem}
.nav-overlay ul li a.is-current{color:var(--gold)}
.nav-overlay .ov-close{position:absolute;top:1.5rem;right:1.5rem;background:none;border:none;cursor:pointer;
  font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.16em;text-transform:uppercase;color:#9a8870;padding:0.4rem}
@media(max-width:980px){nav.site-nav ul{display:none}.nav-toggle{display:flex}}

/* ---------- Layout ---------- */
.content{position:relative;z-index:2}
.lab-section{padding:9.5rem 4vw 5rem;position:relative}
.lab-section + .lab-section{padding-top:0}
.wrap{max-width:1120px;margin:0 auto}
.wrap-narrow{max-width:760px;margin:0 auto}
.panel{background:var(--panel);backdrop-filter:blur(12px) saturate(115%);-webkit-backdrop-filter:blur(12px) saturate(115%);
  border:1px solid var(--line);border-radius:3px;padding:3.2rem 3rem}
.panel-tight{padding:2.2rem 2.2rem}
.section-head{display:flex;align-items:baseline;gap:2rem;margin-bottom:2.6rem;flex-wrap:wrap}
h1.display,h2{font-family:'Cormorant Garamond',serif;font-weight:300;line-height:1.08}
h1.display{font-size:clamp(2.5rem,6vw,4.4rem);letter-spacing:0.01em}
h2{font-size:clamp(1.9rem,4vw,3rem)}
h3{font-family:'Cormorant Garamond',serif;font-weight:400;font-size:1.4rem;line-height:1.25}
h1 em,h2 em,h3 em{font-style:italic;color:var(--gold)}
.lede{color:var(--dim);font-size:1.02rem;max-width:40rem}
p{color:var(--dim)}
.rule{height:1px;background:var(--line);margin:2.4rem 0}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.6rem;
  padding:0.9rem 2.1rem;font-family:inherit;font-size:0.78rem;font-weight:300;letter-spacing:0.16em;
  text-transform:uppercase;text-decoration:none;transition:all .35s;cursor:pointer;
  background:none;border:1px solid transparent;border-radius:2px;line-height:1}
.btn-gold{border-color:var(--gold);color:var(--gold)}
.btn-gold:hover:not(:disabled){background:var(--gold);color:var(--ink)}
.btn-ghost{border-color:var(--line-strong);color:var(--dim)}
.btn-ghost:hover:not(:disabled){border-color:var(--vessel);color:var(--vessel)}
.btn-danger{border-color:rgba(217,138,122,0.4);color:var(--danger)}
.btn-danger:hover:not(:disabled){background:var(--danger);border-color:var(--danger);color:var(--ink)}
.btn-sm{padding:0.62rem 1.2rem;font-size:0.68rem;letter-spacing:0.13em}
.btn:disabled{opacity:0.42;cursor:not-allowed}
.btn:focus-visible{outline:1px solid var(--gold);outline-offset:3px}
.btn-row{display:flex;gap:1rem;flex-wrap:wrap;align-items:center}
.linkish{background:none;border:none;color:var(--gold);font-family:'IBM Plex Mono',monospace;font-size:0.68rem;
  letter-spacing:0.14em;text-transform:uppercase;cursor:pointer;padding:0.35rem 0;
  border-bottom:1px solid var(--gold-dim);transition:border-color .3s}
.linkish:hover{border-color:var(--gold)}

/* ---------- Forms ---------- */
.field{margin-bottom:1.7rem}
.field > label,.field-label{display:block;font-family:'IBM Plex Mono',monospace;font-size:0.66rem;
  letter-spacing:0.16em;text-transform:uppercase;color:var(--faint);margin-bottom:0.7rem}
.input,select.input,textarea.input{
  width:100%;background:var(--field);border:1px solid var(--line-strong);border-radius:2px;
  color:var(--vessel);font-family:'Manrope',sans-serif;font-weight:300;font-size:0.97rem;
  padding:0.85rem 1rem;transition:border-color .3s,background .3s;-webkit-appearance:none;appearance:none}
.input::placeholder{color:var(--faint)}
.input:focus{outline:none;border-color:var(--gold-dim);background:rgba(6,10,17,0.75)}
.input:focus-visible{outline:none}
select.input{background-image:linear-gradient(45deg,transparent 50%,var(--faint) 50%),linear-gradient(135deg,var(--faint) 50%,transparent 50%);
  background-position:calc(100% - 18px) calc(50% + 1px),calc(100% - 13px) calc(50% + 1px);
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:2.6rem}
select.input option{background:#0b1119;color:var(--vessel)}
.input-mono{font-family:'IBM Plex Mono',monospace;letter-spacing:0.3em}
.hint{font-size:0.82rem;color:var(--faint);margin-top:0.55rem;line-height:1.55}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.4rem}
@media(max-width:640px){.grid-2{grid-template-columns:1fr}}

/* Segmented control — used for units and expiry */
.seg{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line-strong);border-radius:2px;overflow:hidden;width:fit-content;max-width:100%}
.seg button{background:none;border:none;border-right:1px solid var(--line);cursor:pointer;
  font-family:'IBM Plex Mono',monospace;font-size:0.68rem;letter-spacing:0.12em;text-transform:uppercase;
  color:var(--dim);padding:0.62rem 1.05rem;transition:background .3s,color .3s;white-space:nowrap}
.seg button:last-child{border-right:none}
.seg button:hover{color:var(--vessel)}
.seg button[aria-pressed="true"]{background:var(--gold-glow);color:var(--gold)}
.seg button:focus-visible{outline:1px solid var(--gold);outline-offset:-2px}

/* Privacy notice */
.notice{display:flex;gap:0.9rem;align-items:flex-start;border-left:1px solid var(--gold-dim);
  padding:0.15rem 0 0.15rem 1.1rem;color:var(--faint);font-size:0.84rem;line-height:1.6;margin:1.4rem 0}
.notice strong{color:var(--dim);font-weight:400}

/* ---------- Dropzone ---------- */
.drop{position:relative;border:1px dashed var(--line-strong);border-radius:3px;background:rgba(5,8,14,0.4);
  padding:3.4rem 2rem;text-align:center;transition:border-color .35s,background .35s;cursor:pointer;display:block}
.drop:hover,.drop.hot{border-color:var(--gold-dim);background:rgba(201,169,106,0.045)}
.drop.hot{border-style:solid}
.drop .drop-mark{font-family:'Cormorant Garamond',serif;font-size:2.6rem;color:var(--gold-dim);line-height:1;margin-bottom:0.9rem}
.drop h3{margin-bottom:0.5rem}
.drop p{font-size:0.88rem;color:var(--faint)}
.drop .or{display:block;font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.2em;
  text-transform:uppercase;color:var(--faint);margin:1.3rem 0 1rem}
.drop input[type=file]{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.drop:focus-within{border-color:var(--gold-dim)}

/* File summary + preview */
.filecard{display:grid;grid-template-columns:132px 1fr;gap:1.6rem;align-items:center;
  border:1px solid var(--line);border-radius:3px;padding:1.2rem;background:rgba(5,8,14,0.45)}
.filecard canvas{width:132px;height:132px;display:block;border-radius:2px;background:rgba(3,5,9,0.6)}
.filecard .fmeta{min-width:0}
.filecard .fname{color:var(--vessel);font-size:0.98rem;overflow-wrap:anywhere;margin-bottom:0.35rem}
.filecard .fstats{font-family:'IBM Plex Mono',monospace;font-size:0.66rem;letter-spacing:0.12em;
  text-transform:uppercase;color:var(--faint)}
.filecard .fstats b{color:var(--gold);font-weight:400}
@media(max-width:560px){.filecard{grid-template-columns:1fr;justify-items:center;text-align:center}}

/* ---------- Result / share ---------- */
.share-url{display:flex;align-items:stretch;border:1px solid var(--line-strong);border-radius:2px;overflow:hidden;background:var(--field)}
.share-url input{flex:1;min-width:0;background:none;border:none;color:var(--vessel);
  font-family:'IBM Plex Mono',monospace;font-size:0.8rem;padding:0.9rem 1rem;overflow:hidden;text-overflow:ellipsis}
.share-url input:focus{outline:none}
.share-url button{border:none;border-left:1px solid var(--line);background:none;color:var(--gold);cursor:pointer;
  font-family:'IBM Plex Mono',monospace;font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;padding:0 1.3rem;transition:background .3s}
.share-url button:hover{background:var(--gold-glow)}
.kv{display:flex;justify-content:space-between;gap:2rem;padding:0.85rem 0;border-bottom:1px solid var(--line);font-size:0.9rem;color:var(--dim)}
.kv span:first-child{color:var(--faint);font-family:'IBM Plex Mono',monospace;font-size:0.66rem;
  letter-spacing:0.14em;text-transform:uppercase;padding-top:3px}
.kv span:last-child{text-align:right}

/* ---------- Treatment planning ---------- */
.tp-device{display:flex;align-items:center;gap:0.55rem;padding:0.6rem 0.5rem;border-bottom:1px solid var(--line);
  cursor:pointer;border-left:2px solid transparent;transition:background .25s,border-color .25s}
.tp-device:hover{background:rgba(255,255,255,0.02)}
.tp-device.sel{border-left-color:var(--gold);background:rgba(201,169,106,0.07)}
.tp-device .seq{font-family:'IBM Plex Mono',monospace;font-size:0.62rem;color:var(--faint);width:1rem;flex-shrink:0}
.tp-device .dot{width:9px;height:9px;border-radius:50%;flex-shrink:0}
.tp-device .body{flex:1;min-width:0}
.tp-device .nm{font-size:0.84rem;color:var(--vessel);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tp-device .meta{font-family:'IBM Plex Mono',monospace;font-size:0.56rem;letter-spacing:0.1em;
  text-transform:uppercase;color:var(--faint);margin-top:0.15rem}
.tp-device .eye{background:none;border:none;color:var(--faint);cursor:pointer;padding:0.15rem 0.2rem;font-size:0.8rem;line-height:1}
.tp-device .eye:hover{color:var(--gold)}

.tp-pad{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:2px;overflow:hidden}
.tp-pad button{background:rgba(8,12,20,0.7);border:none;color:var(--dim);cursor:pointer;
  font-family:'IBM Plex Mono',monospace;font-size:0.66rem;letter-spacing:0.08em;padding:0.5rem 0.3rem;transition:color .2s,background .2s}
.tp-pad button:hover{color:var(--gold);background:rgba(16,23,34,0.9)}
.viewer-shell.light .tp-pad button{background:rgba(255,255,255,0.85);color:#5a6675}
.viewer-shell.light .tp-device .nm{color:#1a222c}

/* ---------- QR codes ---------- */
.qr-card{display:flex;flex-direction:column;align-items:center;gap:0.8rem}
.qr-plate{background:#fff;padding:0.75rem;border-radius:3px;border:1px solid var(--gold-dim);
  line-height:0;box-shadow:0 8px 30px rgba(0,0,0,0.35)}
.qr-plate.large{padding:1.15rem}
.qr-plate svg{display:block}
.qr-cap{font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.14em;
  text-transform:uppercase;color:var(--faint);text-align:center}

.qr-present{position:fixed;inset:0;z-index:500;display:flex;align-items:center;justify-content:center;
  padding:2rem 1.5rem;background:rgba(4,6,11,0.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;transition:opacity .3s ease}
.qr-present.in{opacity:1}
.qr-present-box{text-align:center;max-width:min(92vw,34rem)}
.qr-present .qr-plate{margin:0 auto}
.qr-title{font-family:'Cormorant Garamond',serif;font-weight:300;font-size:clamp(1.6rem,4vw,2.4rem);
  line-height:1.15;margin-bottom:1.6rem;color:var(--vessel)}
.qr-sub{margin-top:1.4rem;font-family:'IBM Plex Mono',monospace;font-size:0.66rem;letter-spacing:0.14em;
  text-transform:uppercase;color:var(--gold)}
.qr-url{margin-top:0.7rem;font-family:'IBM Plex Mono',monospace;font-size:0.68rem;color:var(--faint);
  overflow-wrap:anywhere;line-height:1.6}
@media(max-width:520px){
  .qr-present-box .qr-plate svg{width:min(74vw,300px);height:min(74vw,300px)}
  .qr-url{font-size:0.6rem}
}

/* Compact QR block inside the viewer panel */
.vpanel .qr-card{margin-top:0.3rem}
.viewer-shell.light .qr-cap{color:#6b7683}

/* ---------- Toast ---------- */
.toast-host{position:fixed;left:50%;bottom:2rem;transform:translateX(-50%);z-index:400;
  display:flex;flex-direction:column;gap:0.6rem;align-items:center;pointer-events:none;width:calc(100% - 3rem);max-width:32rem}
.toast{background:rgba(10,15,23,0.95);border:1px solid var(--line-strong);border-left:2px solid var(--gold);
  border-radius:2px;padding:0.85rem 1.2rem;font-size:0.88rem;color:var(--vessel);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  box-shadow:0 12px 40px rgba(0,0,0,0.5);opacity:0;transform:translateY(10px);
  transition:opacity .35s ease,transform .35s ease;pointer-events:auto;max-width:100%}
.toast.in{opacity:1;transform:none}
.toast.err{border-left-color:var(--danger)}
.toast.ok{border-left-color:var(--ok)}

/* ---------- Inline messages ---------- */
.msg{font-size:0.88rem;padding:0.85rem 1.1rem;border-radius:2px;border:1px solid var(--line-strong);
  border-left:2px solid var(--danger);background:rgba(217,138,122,0.06);color:#E8C4BA;margin-bottom:1.4rem}
.msg.ok{border-left-color:var(--ok);background:rgba(143,183,154,0.06);color:#BFD9C6}
.msg[hidden]{display:none}

/* ---------- PIN gate ---------- */
.gate{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:7rem 1.5rem 4rem;position:relative;z-index:2}
.gate-card{width:100%;max-width:26rem;text-align:center}
.gate-card .lockmark{width:44px;height:44px;margin:0 auto 1.6rem;border:1px solid var(--gold-dim);border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:1rem}
.gate-card h1{font-family:'Cormorant Garamond',serif;font-weight:300;font-size:2.1rem;line-height:1.15;margin-bottom:0.6rem}
.gate-card .sub{color:var(--faint);font-size:0.92rem;margin-bottom:2.2rem}
.pin-input{width:100%;text-align:center;font-family:'IBM Plex Mono',monospace;font-size:1.35rem;
  letter-spacing:0.55em;text-indent:0.55em;padding:1rem 0.6rem}
.gate-card .btn{width:100%;margin-top:1.2rem}
.gate-foot{margin-top:2.4rem;font-size:0.78rem;color:var(--faint);line-height:1.6}

/* ---------- Manage table ---------- */
.mtable{width:100%;border-collapse:collapse;font-size:0.9rem}
.mtable thead th{font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--faint);font-weight:400;text-align:left;padding:0 1rem 0.9rem 0;border-bottom:1px solid var(--line)}
.mtable tbody td{padding:1.15rem 1rem 1.15rem 0;border-bottom:1px solid var(--line);color:var(--dim);vertical-align:middle}
.mtable tbody tr:hover{background:rgba(255,255,255,0.012)}
.mtable .cname{color:var(--vessel);font-size:0.98rem}
.mtable .cmeta{font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.1em;color:var(--faint);text-transform:uppercase;margin-top:0.2rem}
.mtable td.actions{text-align:right;white-space:nowrap;padding-right:0}
.tag{display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:0.6rem;letter-spacing:0.12em;
  text-transform:uppercase;padding:0.2rem 0.55rem;border-radius:2px;border:1px solid var(--line-strong);color:var(--dim)}
.tag.active{color:var(--ok);border-color:rgba(143,183,154,0.35)}
.tag.expired{color:var(--danger);border-color:rgba(217,138,122,0.3)}
.tag.disabled{color:var(--faint)}
.iconbtn{background:none;border:1px solid transparent;color:var(--faint);cursor:pointer;padding:0.4rem 0.55rem;
  font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.1em;text-transform:uppercase;
  border-radius:2px;transition:color .25s,border-color .25s}
.iconbtn:hover{color:var(--gold);border-color:var(--gold-dim)}
.iconbtn.danger:hover{color:var(--danger);border-color:rgba(217,138,122,0.35)}
.empty{text-align:center;padding:4rem 1rem;color:var(--faint)}
.empty .mark{font-family:'Cormorant Garamond',serif;font-size:3rem;color:var(--gold-dim);margin-bottom:0.8rem}
@media(max-width:820px){
  .mtable thead{display:none}
  .mtable tbody td{display:block;padding:0.3rem 0;border:none}
  .mtable tbody tr{display:block;padding:1.3rem 0;border-bottom:1px solid var(--line)}
  .mtable td.actions{text-align:left;padding-top:0.9rem;white-space:normal}
}

/* ---------- Modal ---------- */
.modal-host{position:fixed;inset:0;z-index:350;display:none;align-items:center;justify-content:center;
  padding:1.5rem;background:rgba(3,5,9,0.78);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.modal-host.open{display:flex}
.modal{width:100%;max-width:26rem;background:rgba(9,13,21,0.97);border:1px solid var(--line-strong);
  border-radius:3px;padding:2.2rem 2rem;box-shadow:0 30px 90px rgba(0,0,0,0.6)}
.modal h3{margin-bottom:0.5rem}
.modal .sub{color:var(--faint);font-size:0.86rem;margin-bottom:1.6rem;line-height:1.6}

/* ---------- Landing choice cards ---------- */
.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:3px;overflow:hidden;margin-top:2.6rem}
.choice{background:rgba(7,11,18,0.72);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:2.6rem 2.2rem;position:relative;transition:background .4s;display:flex;flex-direction:column}
.choice:hover{background:rgba(12,18,28,0.85)}
.choice .hud{margin-bottom:1.1rem}
.choice h3{margin-bottom:0.7rem}
.choice p{font-size:0.92rem;flex:1;margin-bottom:1.7rem}
.choice::after{content:"";position:absolute;left:2.2rem;bottom:0;height:1px;width:0;background:var(--gold);transition:width .5s ease}
.choice:hover::after{width:3rem}
@media(max-width:820px){.choice-grid{grid-template-columns:1fr}}
.cap-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.6rem 2rem;margin-top:2.8rem;
  padding-top:2.4rem;border-top:1px solid var(--line)}
.cap-list div .hud{color:var(--gold);margin-bottom:0.4rem}
.cap-list div p{font-size:0.86rem;line-height:1.6}

/* ---------- Footer ---------- */
.lab-foot{position:relative;z-index:2;padding:3rem 4vw 3.4rem;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:1.4rem;flex-wrap:wrap;align-items:center;margin-top:3rem}
.lab-foot a{color:var(--faint);text-decoration:none;font-family:'IBM Plex Mono',monospace;font-size:0.66rem;
  letter-spacing:0.14em;text-transform:uppercase;transition:color .3s}
.lab-foot a:hover{color:var(--gold)}
.lab-foot .links{display:flex;gap:1.8rem;flex-wrap:wrap}

/* ==========================================================================
   Viewer
   ========================================================================== */
body.viewer-page{overflow:hidden;height:100%;overscroll-behavior:none}
.viewer-shell{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--ink);z-index:5}
.viewer-shell.light{background:#EEF1F5}

.vbar{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:0.85rem 1.4rem;border-bottom:1px solid var(--line);
  background:linear-gradient(to bottom,rgba(6,9,16,0.96),rgba(6,9,16,0.82));
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:20;min-height:56px}
.viewer-shell.light .vbar{background:rgba(255,255,255,0.9);border-bottom-color:rgba(0,0,0,0.08)}
.vbar .vtitle{min-width:0;display:flex;align-items:baseline;gap:0.9rem;flex-wrap:wrap}
.vbar .vname{font-family:'Cormorant Garamond',serif;font-size:1.16rem;font-weight:400;letter-spacing:0.01em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw}
.viewer-shell.light .vbar .vname{color:#111820}
.vbar .vsub{font-family:'IBM Plex Mono',monospace;font-size:0.6rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--faint)}
.vbar .vactions{display:flex;align-items:center;gap:0.5rem;flex-shrink:0}
.vbar .brandlink{font-family:'Cormorant Garamond',serif;font-size:0.95rem;letter-spacing:0.08em;
  color:var(--faint);text-decoration:none;transition:color .3s;white-space:nowrap}
.vbar .brandlink:hover{color:var(--gold)}
.vbar .brandlink span{color:var(--gold)}
@media(max-width:700px){.vbar{padding:0.7rem 0.9rem;min-height:50px}.vbar .brandlink{display:none}.vbar .vname{max-width:52vw;font-size:1.05rem}}

.vstage{position:relative;flex:1 1 auto;min-height:0;touch-action:none}
.vstage canvas{display:block;width:100%;height:100%;outline:none}

/* Loading */
.vload{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:1rem;background:var(--ink);z-index:15;transition:opacity .6s ease}
.viewer-shell.light .vload{background:#EEF1F5}
.vload.gone{opacity:0;pointer-events:none}
.vload .ring{width:34px;height:34px;border:1px solid var(--line-strong);border-top-color:var(--gold);
  border-radius:50%;animation:vspin 1s linear infinite}
@keyframes vspin{to{transform:rotate(360deg)}}
.vload .hud{color:var(--faint)}

/* Compact toolbar — right edge on desktop, bottom rail on touch */
.vtools{position:absolute;top:50%;right:1rem;transform:translateY(-50%);z-index:18;
  display:flex;flex-direction:column;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:3px;overflow:hidden;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.vtools button{width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:rgba(8,12,20,0.82);border:none;cursor:pointer;color:var(--dim);transition:color .25s,background .25s;padding:0}
.vtools button:hover{color:var(--vessel);background:rgba(16,23,34,0.92)}
.vtools button[aria-pressed="true"]{color:var(--gold);background:rgba(201,169,106,0.13)}
.vtools button svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.3;stroke-linecap:round;stroke-linejoin:round}
.viewer-shell.light .vtools button{background:rgba(255,255,255,0.86);color:#5a6675}
.viewer-shell.light .vtools{background:rgba(0,0,0,0.08);border-color:rgba(0,0,0,0.09)}
.viewer-shell.light .vtools button:hover{color:#0b1119;background:#fff}

/* Orientation + view rail along the bottom */
.vrail{position:absolute;left:50%;transform:translateX(-50%);bottom:1rem;z-index:18;
  display:flex;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:3px;
  overflow:hidden;max-width:calc(100% - 2rem);overflow-x:auto;scrollbar-width:none}
.vrail::-webkit-scrollbar{display:none}
.vrail button{background:rgba(8,12,20,0.82);border:none;cursor:pointer;color:var(--dim);
  font-family:'IBM Plex Mono',monospace;font-size:0.63rem;letter-spacing:0.13em;text-transform:uppercase;
  padding:0.72rem 0.95rem;white-space:nowrap;transition:color .25s,background .25s}
.vrail button:hover{color:var(--vessel);background:rgba(16,23,34,0.92)}
.vrail button.gold{color:var(--gold)}
.viewer-shell.light .vrail{background:rgba(0,0,0,0.08);border-color:rgba(0,0,0,0.09)}
.viewer-shell.light .vrail button{background:rgba(255,255,255,0.86);color:#5a6675}

/* Slide-over panel for display controls / lists */
.vpanel{position:absolute;top:0;right:0;bottom:0;width:310px;max-width:86vw;z-index:19;
  background:rgba(7,11,18,0.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-left:1px solid var(--line);padding:1.5rem 1.4rem;overflow-y:auto;
  transform:translateX(103%);transition:transform .42s cubic-bezier(.22,.61,.36,1)}
.vpanel.open{transform:none}
.viewer-shell.light .vpanel{background:rgba(255,255,255,0.95);border-left-color:rgba(0,0,0,0.08)}
.vpanel h4{font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.18em;text-transform:uppercase;
  color:var(--gold);font-weight:400;margin:1.8rem 0 0.9rem}
.vpanel h4:first-of-type{margin-top:0}
.vpanel .close{position:absolute;top:0.9rem;right:0.9rem;background:none;border:none;color:var(--faint);
  cursor:pointer;font-family:'IBM Plex Mono',monospace;font-size:0.62rem;letter-spacing:0.14em;text-transform:uppercase}
.vpanel .close:hover{color:var(--gold)}
.viewer-shell.light .vpanel h4{color:#8a7550}
.viewer-shell.light .vpanel,.viewer-shell.light .vpanel .rowlabel{color:#2a3340}

.rowlabel{display:flex;justify-content:space-between;align-items:center;font-family:'IBM Plex Mono',monospace;
  font-size:0.63rem;letter-spacing:0.12em;text-transform:uppercase;color:var(--faint);margin-bottom:0.5rem}
.rowlabel b{color:var(--gold);font-weight:400}
input[type=range]{width:100%;-webkit-appearance:none;appearance:none;background:none;height:22px;cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:1px;background:var(--line-strong)}
input[type=range]::-moz-range-track{height:1px;background:var(--line-strong)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:12px;height:12px;border-radius:50%;
  background:var(--gold);margin-top:-5.5px;border:none}
input[type=range]::-moz-range-thumb{width:12px;height:12px;border-radius:50%;background:var(--gold);border:none}
input[type=range]:focus-visible{outline:1px solid var(--gold);outline-offset:4px}

.swatches{display:flex;gap:0.5rem;flex-wrap:wrap}
.swatches button{width:26px;height:26px;border-radius:50%;border:1px solid rgba(255,255,255,0.16);cursor:pointer;padding:0;transition:transform .2s}
.swatches button:hover{transform:scale(1.12)}
.swatches button[aria-pressed="true"]{box-shadow:0 0 0 1px var(--ink),0 0 0 2px var(--gold)}

.vlist{list-style:none;margin-top:0.4rem}
.vlist li{display:flex;align-items:center;gap:0.6rem;padding:0.55rem 0;border-bottom:1px solid var(--line);font-size:0.85rem;color:var(--dim)}
.vlist li .grow{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.vlist li .val{font-family:'IBM Plex Mono',monospace;font-size:0.72rem;color:var(--gold);white-space:nowrap}
.vlist li button{background:none;border:none;color:var(--faint);cursor:pointer;font-size:0.9rem;line-height:1;padding:0.2rem 0.3rem}
.vlist li button:hover{color:var(--danger)}
.vlist .none{color:var(--faint);font-size:0.82rem;padding:0.5rem 0;border:none}

/* Structure list (multi-object ready) */
.structrow{display:flex;align-items:center;gap:0.6rem;padding:0.6rem 0;border-bottom:1px solid var(--line)}
.structrow .dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.structrow .nm{flex:1;min-width:0;font-size:0.86rem;color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.structrow .eye{background:none;border:none;color:var(--faint);cursor:pointer;padding:0.2rem}
.structrow .eye[aria-pressed="true"]{color:var(--gold)}

/* Floating labels anchored to geometry */
.vlabels{position:absolute;inset:0;pointer-events:none;z-index:16;overflow:hidden}
.vtag{position:absolute;transform:translate(-50%,-50%);pointer-events:none;white-space:nowrap;
  font-family:'IBM Plex Mono',monospace;font-size:0.63rem;letter-spacing:0.1em;
  color:var(--vessel);background:rgba(6,9,16,0.72);border:1px solid var(--gold-dim);
  border-radius:2px;padding:0.22rem 0.5rem;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  transition:opacity .2s}
.vtag.meas{color:var(--gold);border-color:var(--gold-dim);font-size:0.68rem}
.viewer-shell.light .vtag{background:rgba(255,255,255,0.86);color:#1a222c;border-color:rgba(160,130,70,0.4)}
.vtag.dim{opacity:0.28}

/* Mode hint */
.vhint{position:absolute;left:50%;top:1rem;transform:translateX(-50%);z-index:18;
  font-family:'IBM Plex Mono',monospace;font-size:0.63rem;letter-spacing:0.13em;text-transform:uppercase;
  color:var(--gold);background:rgba(6,9,16,0.8);border:1px solid var(--gold-dim);border-radius:2px;
  padding:0.5rem 0.95rem;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  opacity:0;transform:translate(-50%,-8px);transition:opacity .3s,transform .3s;pointer-events:none;text-align:center}
.vhint.show{opacity:1;transform:translateX(-50%)}

#mobileView{display:none}

.viewer-shell.light .vhint{background:rgba(255,255,255,0.92);border-color:rgba(160,130,70,0.4);color:#8a6a2f}
.viewer-shell.light .vload .hud{color:#6b7683}
.viewer-shell.light .vload .ring{border-color:rgba(0,0,0,0.12);border-top-color:#C9A96A}

@media(max-width:820px){
  /* Two stacked rails along the bottom edge: tools, then orientations. */
  .vtools{top:auto;left:0.7rem;right:0.7rem;bottom:0.7rem;transform:none;
    flex-direction:row;justify-content:space-between;overflow-x:auto;scrollbar-width:none}
  .vtools::-webkit-scrollbar{display:none}
  .vtools button{flex:1 0 auto;width:auto;min-width:44px;height:46px}
  #tLight,#tFull{display:none}
  #mobileView{display:block}
  .vrail{left:0.7rem;right:0.7rem;bottom:calc(0.7rem + 46px + 0.5rem);transform:none;max-width:none}
  .vpanel{width:100%;max-width:none;top:0;bottom:0;padding-bottom:7rem}
}
@media(max-width:520px){
  .vrail button{padding:0.66rem 0.78rem;font-size:0.6rem}
  .vbar .vsub{display:none}
  .vhint{font-size:0.6rem;padding:0.45rem 0.8rem;max-width:calc(100% - 2rem)}
}