:root{
  --bg:#ECEEF3; --surface:#FFFFFF; --ink:#15182B; --muted:#5A6079; --line:#D3D7E2;
  --uv:#5B3DF5; --uv-ink:#FFFFFF; --glow:#B86A00; --stage:#0E1022; --stage-ink:#EEF0FA; --stage-glow:#FFC062; --danger:#B3261E; --ok:#1F6B3A;
  --font:"Bricolage Grotesque",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{ --bg:#10121F; --surface:#1A1D30; --ink:#E9EBF5; --muted:#9AA0BC; --line:#2C3050; --uv:#8E78FF; --uv-ink:#0E1022; --glow:#FFC062; --danger:#FF8A80; --ok:#7BD89A; }
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1rem;line-height:1.5;font-optical-sizing:auto}
img{max-width:100%}
a{color:var(--uv)}
button,input{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--uv);outline-offset:3px;border-radius:6px}
.wrap{max-width:60rem;margin:0 auto;padding:1rem clamp(1rem,4vw,2rem) 4rem}

.top{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.5rem 0 1.5rem}
.mark{font-weight:800;font-size:1.35rem;letter-spacing:-.03em;font-stretch:85%;color:var(--ink);text-decoration:none}
.nav{display:flex;align-items:center;gap:1.1rem}
.nav a:not(.btn){color:var(--ink);font-weight:600;text-decoration:none}
.nav form{margin:0}
.linklike{background:none;border:0;padding:0;cursor:pointer;font-weight:600;color:var(--muted)}

.h2{font-size:1.7rem;font-stretch:85%;letter-spacing:-.025em;line-height:1.1;margin:0 0 .4rem}
.h3{font-size:1.2rem;letter-spacing:-.015em;margin:2.25rem 0 .75rem}
.lede{color:var(--muted);margin:0 0 1.5rem;max-width:40rem}
.muted{color:var(--muted);font-size:.93rem;margin:.75rem 0 0}
.crumb{margin:0 0 .5rem;font-size:.93rem}
.flash{border-radius:.8rem;padding:.7rem 1rem;margin:0 0 1.25rem;font-weight:600;background:var(--surface);border:1px solid var(--line)}
.flash.ok{color:var(--ok)} .flash.bad{color:var(--danger)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:1px solid transparent;border-radius:.8rem;padding:.7rem 1.15rem;font-weight:650;cursor:pointer;background:var(--uv);color:var(--uv-ink);text-decoration:none;white-space:nowrap}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.small{padding:.45rem .85rem;font-size:.93rem}
.btn.quiet{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.danger{background:transparent;color:var(--danger);border-color:var(--line)}
.btn[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
.row form{margin:0}
.file{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}

/* forms and cards */
.card{background:var(--surface);border:1px solid var(--line);border-radius:1.25rem;padding:clamp(1rem,3vw,1.5rem)}
.card.narrow{max-width:26rem;margin:1rem auto;display:grid;gap:1rem}
label{display:flex;flex-direction:column;gap:.3rem;font-weight:650}
label small{font-weight:400;color:var(--muted)}
input[type=text],input[type=email],input[type=password],input[type=url],input:not([type]){border:1px solid var(--line);background:var(--bg);border-radius:.7rem;padding:.65rem .8rem;width:100%;font-weight:400}
.inline{display:flex;flex-wrap:wrap;gap:.6rem;align-items:end}
.inline label{flex:1 1 16rem}
.share{display:grid;gap:1rem}
.share p{margin:.2rem 0 .6rem}
.copy{display:flex;gap:.5rem}
.copy input{flex:1;min-width:0;font-size:.93rem}
.stat{color:var(--muted);font-size:.93rem}

.slots{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:34rem){.slots{grid-template-columns:1fr}}
.slot{display:flex;flex-direction:column;gap:.5rem}
.slot .name{font-weight:650}
.slot .drop{position:relative;display:grid;place-items:center;aspect-ratio:4/3;border:2px dashed var(--line);border-radius:1rem;cursor:pointer;overflow:hidden;color:var(--muted);text-align:center;padding:1rem;background:var(--bg);font-weight:400}
.slot .drop:focus-within{outline:3px solid var(--uv);outline-offset:3px}
.slot .drop img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:var(--stage)}
.slot.cam .drop{border-color:var(--uv)}
.meter{font-size:.92rem;color:var(--muted);min-height:1.4rem;margin:0}
.meter.good{color:var(--ink)} .meter.bad{color:var(--danger)}
.fields{display:grid;grid-template-columns:1fr 1.3fr auto;gap:.75rem;align-items:end;margin-top:1.1rem}
@media (max-width:46rem){.fields{grid-template-columns:1fr}}

.list{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;gap:.75rem}
.rowcard{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between;background:var(--surface);border:1px solid var(--line);border-radius:1rem;padding:.85rem 1rem}
.rowcard .grow{flex:1 1 12rem}
.rowcard .title{display:block;font-weight:700;color:var(--ink);text-decoration:none;overflow-wrap:anywhere}
.rowcard small{color:var(--muted)}
.thumbs{display:flex;padding-bottom:.6rem}
.thumbs img{width:4.5rem;height:3.4rem;object-fit:cover;border-radius:.5rem;background:var(--stage);border:2px solid var(--surface)}
.thumbs img+img{margin-left:-1.1rem;margin-top:.6rem;margin-bottom:-.6rem;border-color:var(--uv)}
.empty{color:var(--muted);border:1px dashed var(--line);border-radius:1rem;padding:1.25rem;text-align:center;margin:1.5rem 0 0}
.settings{margin-top:2.5rem;border-top:1px solid var(--line);padding-top:1rem}
.settings summary{cursor:pointer;font-weight:650}
.settings form{margin-top:1rem}

/* landing */
.hero{background:var(--stage);color:var(--stage-ink);border-radius:1.25rem;padding:clamp(1.5rem,6vw,3.5rem);display:grid;gap:1.25rem}
.hero h1,.idle h1{margin:0;font-weight:750;font-stretch:80%;letter-spacing:-.035em;line-height:.98;font-size:clamp(2rem,7.2vw,4.4rem);max-width:12ch}
.hero h1 span,.idle h1 span{display:block}
.hero h1 .cam,.idle h1 .cam{color:var(--stage-glow);clip-path:inset(0 100% 0 0);animation:sweep 1.5s cubic-bezier(.6,0,.2,1) .5s forwards}
@keyframes sweep{to{clip-path:inset(0 0 0 0)}}
.hero p,.idle p{margin:0;max-width:36rem;color:#B9BEDA}
.hero .btn,.stage .btn{background:#8E78FF;color:#0E1022}
.hero .btn.quiet,.stage .btn.quiet{background:transparent;color:var(--stage-ink);border-color:#3A3F66}
.steps{margin:2rem 0 0;padding:0 0 0 1.4rem;display:grid;gap:.6rem;max-width:40rem;color:var(--muted)}
.steps strong{color:var(--ink)}

/* scanner */
.stage{--ar:1.3333;position:relative;width:min(100%,calc(72vh * var(--ar)));aspect-ratio:var(--ar);margin:0 auto;background:var(--stage);color:var(--stage-ink);border-radius:1.25rem;overflow:hidden;isolation:isolate;box-shadow:0 0 0 1px var(--line)}
.stage video,.stage .still{position:absolute;inset:0;width:100%;height:100%;object-fit:fill;display:none}
.stage.is-live video{display:block}
.stage.is-still .still{display:block}
.hidden-pic{position:absolute;left:0;top:0;transform-origin:0 0;max-width:none;opacity:0;transition:opacity .45s ease;pointer-events:none;will-change:transform}
.hidden-pic.on{opacity:1}
.outline{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:0;transition:opacity .3s}
.outline.on{opacity:1}
.outline polygon{fill:none;stroke:var(--stage-glow);stroke-width:2;vector-effect:non-scaling-stroke;stroke-linejoin:round}
.idle{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;gap:1.25rem;padding:clamp(1.25rem,5vw,3rem)}
.stage.is-live .idle,.stage.is-still .idle{display:none}
.stage:not(.is-live):not(.is-still){aspect-ratio:auto;width:100%}
.stage:not(.is-live):not(.is-still) .idle{position:relative;min-height:min(30rem,68vh)}
.status{min-height:1.5rem;margin:1rem auto .75rem;text-align:center;font-weight:600}
.status.found{color:var(--glow)} .status.bad{color:var(--danger)}
.controls{justify-content:center}
.hint{color:var(--muted);max-width:40rem;margin:1.5rem auto 0;text-align:center;font-size:.95rem}

@media (prefers-reduced-motion:reduce){
  .hero h1 .cam,.idle h1 .cam{animation:none;clip-path:none}
  .hidden-pic,.outline{transition:none}
}