:root{
  --ink:#0E1116; --paper:#F4F6F8; --surf:#FFFFFF; --surf2:#EAEEF2;
  --line:#D3DAE2; --line2:#BFC8D3;
  --txt:#0E1116; --txt2:#4A5563; --txt3:#76828F;
  --correct:#2E7DA8; --correct-bg:#E4F0F7;
  --generate:#B4702A; --generate-bg:#FAEFE1;
  --restrict:#9B3341; --restrict-bg:#F9E6E8;
  --ok:#2F7D4F; --mask:#E8447A;
  --r:7px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --ink:#F4F6F8; --paper:#0E1116; --surf:#161B22; --surf2:#1E242D;
  --line:#2A323D; --line2:#3A4450;
  --txt:#E8EDF2; --txt2:#A3AEBB; --txt3:#76828F;
  --correct:#6FB6DC; --correct-bg:#14293A;
  --generate:#E0A05C; --generate-bg:#332512;
  --restrict:#E08795; --restrict-bg:#33161B;
  --ok:#6BC28E; --mask:#FF6B9D;
}}
:root[data-theme="dark"]{
  --ink:#F4F6F8; --paper:#0E1116; --surf:#161B22; --surf2:#1E242D;
  --line:#2A323D; --line2:#3A4450;
  --txt:#E8EDF2; --txt2:#A3AEBB; --txt3:#76828F;
  --correct:#6FB6DC; --correct-bg:#14293A;
  --generate:#E0A05C; --generate-bg:#332512;
  --restrict:#E08795; --restrict-bg:#33161B;
  --ok:#6BC28E; --mask:#FF6B9D;
}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--paper);color:var(--txt);
  font:15px/1.55 "IBM Plex Sans",system-ui,-apple-system,sans-serif;
  padding:env(safe-area-inset-top,0) 16px calc(64px + env(safe-area-inset-bottom,0))}
img{max-width:100%}
[hidden]{display:none!important}
.wrap{max-width:900px;margin:0 auto}
h1,h2,h3{font-family:Archivo,system-ui,sans-serif;margin:0;text-wrap:balance}

/* login */
.loginbox{max-width:380px;margin:14vh auto 0;text-align:center}
.loginbox h1{font-size:32px;font-weight:700;letter-spacing:-.022em}
.loginbox p{color:var(--txt2);font-size:14.5px;margin:8px 0 22px}
.loginbox form{display:flex;flex-direction:column;gap:10px}
.loginbox input{font:15px/1 "IBM Plex Sans",sans-serif;color:var(--txt);
  background:var(--surf);border:1px solid var(--line);border-radius:var(--r);
  padding:13px 14px;text-align:center}
.loginbox .go{margin:0}
.msg{font-size:13px;color:var(--txt3);margin-top:16px!important}
.msg.bien{color:var(--ok)} .msg.mal{color:var(--restrict)}

header{padding-block:28px 18px;border-bottom:1px solid var(--line);margin-bottom:26px}
.htop{display:flex;gap:20px;align-items:flex-start;flex-wrap:wrap}
h1{font-size:30px;font-weight:700;letter-spacing:-.022em;line-height:1.1}
.sub{color:var(--txt2);font-size:14.5px;margin-top:7px;max-width:56ch}
.bal{margin-left:auto;background:var(--surf);border:1px solid var(--line);
  border-radius:var(--r);padding:11px 16px;text-align:right;flex:none}
.bal dt{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.07em;
  text-transform:uppercase;color:var(--txt3)}
.bal dd{margin:2px 0 0;font-family:"IBM Plex Mono",monospace;font-size:22px;
  font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hmeta{display:flex;gap:12px;align-items:center;margin-top:14px;
  font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--txt3)}
.linkish{background:none;border:0;color:var(--txt3);font:inherit;
  cursor:pointer;text-decoration:underline;padding:0}
.linkish:hover{color:var(--txt)}

.step{margin-bottom:30px}
.shead{display:flex;gap:13px;align-items:baseline;margin-bottom:6px}
.snum{font-family:"IBM Plex Mono",monospace;font-size:12px;font-weight:600;
  color:var(--txt3);border:1px solid var(--line2);border-radius:5px;
  width:24px;height:24px;display:grid;place-items:center;flex:none;transform:translateY(3px)}
.step.on .snum{color:var(--surf);background:var(--txt);border-color:var(--txt)}
h2{font-size:18.5px;font-weight:600;letter-spacing:-.012em}
.shelp{color:var(--txt2);font-size:13.5px;margin:0 0 14px 37px;max-width:62ch}
.sbody{margin-left:37px}
@media(max-width:560px){.shelp,.sbody{margin-left:0}}

.drop{border:1.5px dashed var(--line2);border-radius:var(--r);background:var(--surf);
  padding:28px 20px;text-align:center;cursor:pointer;display:block;
  transition:border-color .15s,background .15s}
.drop:hover,.drop.hot{border-color:var(--correct);background:var(--correct-bg)}
.drop strong{font-family:Archivo,sans-serif;font-weight:600;display:block;font-size:15px}
.drop span{color:var(--txt2);font-size:13px;display:block;margin-top:4px}
input[type=file]{display:none}

.selbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:14px;
  font-size:13px;color:var(--txt2)}
.selbar button{font:500 12.5px/1 "IBM Plex Sans",sans-serif;color:var(--txt2);
  background:var(--surf);border:1px solid var(--line);border-radius:100px;
  padding:6px 13px;cursor:pointer}
.selbar button:hover{border-color:var(--txt3);color:var(--txt)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(148px,1fr));gap:12px;margin-top:12px}
.ph{background:var(--surf);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;display:flex;flex-direction:column;position:relative}
.ph.sel{border-color:var(--correct);box-shadow:0 0 0 1px var(--correct)}
.ph.brushable{cursor:crosshair}
.ph .thumb{position:relative}
.ph img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;background:var(--surf2)}
.ph .pick{position:absolute;top:7px;left:7px;width:20px;height:20px;
  accent-color:var(--correct);margin:0;cursor:pointer}
.ph .stack{position:absolute;bottom:6px;left:6px;right:6px;display:flex;flex-wrap:wrap;gap:4px}
.chip{font-family:"IBM Plex Mono",monospace;font-size:9.5px;
  background:rgba(14,17,22,.82);color:#F4F6F8;padding:2px 6px;border-radius:3px}
.chip.g{background:var(--generate);color:#fff}
.ph select{font:500 11.5px/1 "IBM Plex Mono",monospace;color:var(--txt);
  background:var(--surf);border:0;border-top:1px solid var(--line);
  padding:8px 7px;width:100%;cursor:pointer;appearance:none;text-align:center}
.ph .brushcta{font:600 11.5px/1 "IBM Plex Mono",monospace;color:var(--mask);
  background:var(--surf);border:0;border-top:1px solid var(--line);
  padding:9px 7px;width:100%;cursor:pointer}
.ph .brushcta:hover{background:var(--surf2)}
.ph .brushcta.done{color:var(--ok)}
.ph .spin{position:absolute;inset:0;display:grid;place-items:center;
  background:rgba(14,17,22,.62);color:#F4F6F8;
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.05em}

.ops{display:grid;gap:9px}
.ogroup{margin-bottom:16px}
.glab{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.09em;
  text-transform:uppercase;color:var(--txt3);margin-bottom:8px;
  display:flex;align-items:center;gap:8px}
.glab::after{content:"";height:1px;background:var(--line);flex:1}
.op{display:flex;gap:12px;align-items:flex-start;background:var(--surf);
  border:1px solid var(--line);border-left:3px solid var(--line2);
  border-radius:var(--r);padding:13px 14px;cursor:pointer;transition:border-color .15s}
.op:hover{border-color:var(--line2)}
.op.off{opacity:.45;cursor:not-allowed}
.op input{margin:2px 0 0;accent-color:var(--correct);flex:none;width:16px;height:16px}
.op .nm{font-family:Archivo,sans-serif;font-weight:600;font-size:14.5px;display:block}
.op .ds{color:var(--txt2);font-size:13px;display:block;margin-top:2px}
.op .tk{font-family:"IBM Plex Mono",monospace;font-size:11.5px;font-weight:500;
  color:var(--txt2);background:var(--surf2);border-radius:100px;padding:4px 10px;
  margin-left:auto;flex:none;white-space:nowrap;align-self:center}
.op.c{border-left-color:var(--correct)} .op.c input{accent-color:var(--correct)}
.op.g{border-left-color:var(--generate)} .op.g input{accent-color:var(--generate)}
.op.r{border-left-color:var(--restrict)} .op.r input{accent-color:var(--restrict)}
.op.sel.c{border-color:var(--correct);background:var(--correct-bg)}
.op.sel.g{border-color:var(--generate);background:var(--generate-bg)}
.op.sel.r{border-color:var(--restrict);background:var(--restrict-bg)}
.op.sel .tk{background:var(--surf)}

.opts{margin:9px 0 0 40px}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chips button{font:500 12.5px/1 "IBM Plex Sans",sans-serif;color:var(--txt2);
  background:var(--surf);border:1px solid var(--line);border-radius:100px;
  padding:7px 14px;cursor:pointer}
.chips button:hover{border-color:var(--generate)}
.chips button[aria-pressed=true]{background:var(--generate);border-color:var(--generate);
  color:#fff;font-weight:600}
.optlab{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.07em;
  text-transform:uppercase;color:var(--txt3);margin-bottom:7px}
.hintbox{background:var(--surf);border:1px solid var(--line);
  border-left:3px solid var(--mask);border-radius:var(--r);padding:12px 14px;
  font-size:13px;color:var(--txt2)}
.hintbox b{color:var(--txt)}

.gate{margin:9px 0 0 40px;background:var(--restrict-bg);border:1px solid var(--restrict);
  border-radius:var(--r);padding:12px 13px;font-size:13px;color:var(--txt)}
.gate p{margin:0 0 9px} .gate strong{color:var(--restrict)}
.gate label{display:flex;gap:9px;align-items:flex-start;cursor:pointer;font-size:12.5px}
.gate input{margin:2px 0 0;accent-color:var(--restrict);flex:none}

.readout{margin-top:16px;background:var(--surf);border:1px solid var(--line);
  border-radius:var(--r);padding:14px 16px;display:flex;flex-wrap:wrap;
  gap:22px 30px;align-items:flex-end}
.rd{display:flex;flex-direction:column;gap:3px}
.rd dt{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.07em;
  text-transform:uppercase;color:var(--txt3)}
.rd dd{margin:0;font-family:"IBM Plex Mono",monospace;font-size:19px;font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.rd dd.warn{color:var(--restrict)}

.go{font:600 14.5px/1 Archivo,sans-serif;color:var(--paper);background:var(--ink);
  border:0;border-radius:var(--r);padding:13px 22px;cursor:pointer;margin-top:16px}
.go:hover{opacity:.87}
.go:disabled{opacity:.35;cursor:not-allowed}
.ghost{font:600 13.5px/1 Archivo,sans-serif;color:var(--txt);background:var(--surf);
  border:1px solid var(--line2);border-radius:var(--r);padding:11px 18px;
  cursor:pointer;margin-top:14px}
.ghost:hover{border-color:var(--txt3)}
.err{color:var(--restrict);font-size:13px;margin-top:10px;display:flex;flex-direction:column;gap:5px}

.band{display:flex;align-items:center;gap:10px;margin:22px 0 11px}
.band .bn{font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:600;
  color:var(--surf);background:var(--txt2);border-radius:4px;padding:3px 7px}
.band h3{font-size:14px;font-weight:600}
.band .ct{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--txt3)}
.band::after{content:"";height:1px;background:var(--line);flex:1}
.pair{background:var(--surf);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;margin-bottom:12px}
.pgrid{display:grid;grid-template-columns:1fr 1fr}
@media(max-width:480px){.pgrid{grid-template-columns:1fr}}
.side{position:relative;border-right:1px solid var(--line)}
.side:last-child{border-right:0}
.side img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;background:var(--surf2)}
.tag{position:absolute;top:8px;left:8px;font-family:"IBM Plex Mono",monospace;
  font-size:10px;letter-spacing:.06em;text-transform:uppercase;
  background:rgba(14,17,22,.82);color:#F4F6F8;padding:3px 8px;border-radius:4px}
.tag.ref{left:auto;right:8px;background:var(--generate);color:#fff}
.pfoot{padding:11px 14px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.pfoot .seq{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--txt3);
  font-variant-numeric:tabular-nums}
.pfoot .ask{font-size:13px;color:var(--txt2);margin-left:auto}
.vote{display:flex;gap:6px}
.vote button{font:600 12.5px/1 "IBM Plex Mono",monospace;padding:7px 14px;
  border:1px solid var(--line2);background:var(--surf);color:var(--txt2);
  border-radius:var(--r);cursor:pointer}
.vote button:hover{border-color:var(--txt3)}
.vote button[aria-pressed=true][data-v=si]{background:var(--ok);border-color:var(--ok);color:#fff}
.vote button[aria-pressed=true][data-v=no]{background:var(--restrict);border-color:var(--restrict);color:#fff}
.why{width:100%;margin-top:2px;font:14px/1.5 "IBM Plex Sans",sans-serif;color:var(--txt);
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:9px 11px;resize:vertical;min-height:44px}

.tally{background:var(--surf);border:1px solid var(--line);border-radius:var(--r);padding:16px}
.tally h3{font-size:14.5px;font-weight:600;margin-bottom:11px}
.bars{display:grid;gap:7px}
.bar{display:grid;grid-template-columns:96px 1fr 52px;gap:10px;align-items:center;
  font-family:"IBM Plex Mono",monospace;font-size:12px}
.bar .tr{height:8px;background:var(--surf2);border-radius:100px;overflow:hidden}
.bar .fl{height:100%;background:var(--ok);border-radius:100px}
.bar .pc{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
.repo{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--txt2)}
.repo b{font-family:"IBM Plex Mono",monospace;color:var(--txt)}

.modal{position:fixed;inset:0;z-index:50;background:rgba(14,17,22,.86);
  display:grid;place-items:center;padding:16px}
.mbox{background:var(--surf);border-radius:10px;overflow:hidden;
  max-width:760px;width:100%;max-height:100%;display:flex;flex-direction:column}
.mhead{padding:14px 16px;border-bottom:1px solid var(--line);
  display:flex;gap:12px;align-items:baseline;flex-wrap:wrap}
.mhead h3{font-size:15.5px;font-weight:600}
.mhead span{color:var(--txt2);font-size:12.5px}
.canvasbox{position:relative;background:var(--surf2);overflow:auto;
  display:grid;place-items:center;padding:10px}
.canvasbox img{display:block;max-width:100%;user-select:none;-webkit-user-drag:none}
.canvasbox canvas{position:absolute;touch-action:none;cursor:crosshair}
.mfoot{padding:13px 16px;border-top:1px solid var(--line);
  display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.mfoot label{font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--txt2);
  display:flex;gap:8px;align-items:center}
input[type=range]{accent-color:var(--mask);width:110px}
.mfoot .sp{margin-left:auto;display:flex;gap:8px}
.mfoot button{font:600 13px/1 "IBM Plex Sans",sans-serif;padding:9px 15px;
  border-radius:var(--r);cursor:pointer;border:1px solid var(--line2);
  background:var(--surf);color:var(--txt2)}
.mfoot button.pri{background:var(--mask);border-color:var(--mask);color:#fff}
.mfoot button:disabled{opacity:.4;cursor:not-allowed}

.empty{color:var(--txt3);font-size:13.5px;font-style:italic;padding:18px 0}
:focus-visible{outline:2px solid var(--correct);outline-offset:2px;border-radius:3px}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* sliders y vista previa de operaciones locales */
.sliders{display:grid;gap:9px;max-width:420px}
.sl{display:grid;grid-template-columns:132px 1fr 44px;gap:10px;align-items:center;
  font-family:"IBM Plex Mono",monospace;font-size:11.5px;color:var(--txt2)}
.sl input[type=range]{width:100%;accent-color:var(--correct)}
.sl b{text-align:right;font-variant-numeric:tabular-nums;color:var(--txt)}
.prevwrap{margin-top:14px}
.prevwrap canvas{max-width:100%;border:1px solid var(--line);border-radius:var(--r);
  display:block;background:var(--surf2)}
.chips button[data-preset]{text-transform:capitalize}

/* una sola foto (todavía sin procesar): que no ocupe media pantalla */
.pgrid.sola{grid-template-columns:1fr;max-width:520px}
/* el error va junto a la foto que falló */
.falla{width:100%;margin:6px 0 0;font-size:12.5px;color:var(--restrict);
  background:var(--restrict-bg);border:1px solid var(--restrict);
  border-radius:var(--r);padding:8px 11px}

/* nota informativa (no es un error) y etiqueta "sin costo" */
.nota{width:100%;margin:6px 0 0;font-size:12.5px;line-height:1.45;color:var(--txt3);
  font-style:italic}
.tk.gratis{color:var(--ok,#1c7c4a);font-weight:600}

/* acción destructiva visible en la barra de fotos */
.selbar #sel-borrar{margin-left:auto;color:var(--restrict);border-color:var(--restrict)}
.selbar #sel-borrar:hover{background:var(--restrict-bg)}
.linkish.danger{color:var(--restrict)}

/* ---- Ajuste manual de perspectiva ------------------------- */
.modal{position:fixed;inset:0;background:rgba(14,14,16,.72);z-index:60;
       display:flex;align-items:center;justify-content:center;padding:16px}
.modal[hidden]{display:none}
.mbox{background:var(--pa,#fff);border-radius:14px;padding:20px;
      max-width:620px;width:100%;max-height:92vh;overflow:auto;
      box-shadow:0 24px 70px rgba(0,0,0,.4)}
.mbox h3{margin:0 0 6px;font-family:Archivo,system-ui,sans-serif;font-size:19px}
.mhelp{margin:0 0 12px;font-size:13px;line-height:1.5;opacity:.72}
.mprev{position:relative;background:#111;border-radius:10px;overflow:hidden;
       display:flex;align-items:center;justify-content:center;min-height:200px}
.mprev canvas{display:block;max-width:100%;max-height:46vh}
/* Grilla de referencia: lo único que permite juzgar a ojo si una
   línea quedó vertical. Sin ella el deslizador es adivinar. */
.mgrid{position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(to right,rgba(255,255,255,.34) 0 1px,transparent 1px 12.5%),
    repeating-linear-gradient(to bottom,rgba(255,255,255,.34) 0 1px,transparent 1px 12.5%)}
.mrow{display:grid;grid-template-columns:104px 1fr 58px;align-items:center;
      gap:10px;margin-top:14px;font-size:13px}
.mrow input[type=range]{width:100%}
.mrow output{font-family:"IBM Plex Mono",monospace;font-size:13px;text-align:right}
.mbtns{display:flex;gap:8px;justify-content:flex-end;margin-top:18px;flex-wrap:wrap}
.mbtns .go{width:auto;padding:10px 20px}