:root{
  --dirt:#b5663a;
  --dirt-d:#8c4a27;
  --clay:#d98b57;
  --night:#10171b;
  --grass:#1d3a2a;
  --chalk:#f4f0e6;
  --line:#2a3940;
  --ink:#0c1114;
  --muted:#8fa0a8;
  --seam:#d23b3b;
  --ok:#36b37e;
  --r:14px;
  --shadow:0 14px 40px rgba(0,0,0,.45);
  font-synthesis:none;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"Segoe UI",system-ui,-apple-system,sans-serif;
  background:
    radial-gradient(1200px 500px at 50% -10%, rgba(217,139,87,.18), transparent 60%),
    linear-gradient(180deg,#0b1115 0%, #0c1418 100%);
  color:var(--chalk);
  min-height:100vh;
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* Seam motif */
.seam{
  display:inline-block;width:34px;height:34px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%, #fff 0 62%, #efe7d8 63% 100%);
  position:relative;box-shadow:inset 0 0 0 1px rgba(0,0,0,.1);
  flex:0 0 auto;
}
.seam::before,.seam::after{
  content:"";position:absolute;top:6px;bottom:6px;width:8px;
  border:2px solid var(--seam);border-radius:50%;
}
.seam::before{left:4px;border-right:none;border-top:none;transform:rotate(-8deg)}
.seam::after{right:4px;border-left:none;border-bottom:none;transform:rotate(-8deg)}

/* Topbar */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;border-bottom:1px solid var(--line);
  background:rgba(8,13,16,.7);backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:12px}
.brand strong{font-size:1.15rem;letter-spacing:.5px;font-weight:800}
.brand em{color:var(--clay);font-style:normal}
.topbar-r{display:flex;align-items:center;gap:12px}
.who{color:var(--muted);font-size:.9rem}

button{font:inherit;cursor:pointer;border:none;border-radius:10px}
.primary{background:var(--clay);color:#1a0e06;font-weight:700;padding:11px 18px;transition:transform .12s, background .2s}
.primary:hover{background:#e89a66}
.primary:active{transform:translateY(1px)}
.primary:disabled{opacity:.4;cursor:not-allowed}
.ghost{background:transparent;color:var(--chalk);border:1px solid var(--line);padding:9px 15px;text-decoration:none;font-size:.92rem;transition:border-color .2s,background .2s}
.ghost:hover{border-color:var(--clay);background:rgba(217,139,87,.08)}

.wrap{max-width:1180px;margin:0 auto;padding:26px 20px 80px}

.alert{background:#3a1f1f;border:1px solid #6b2f2f;color:#f3c9c9;padding:12px 16px;border-radius:10px;margin:14px 0;font-size:.92rem}
.alert.wide{max-width:1180px;margin:14px auto;}

/* Dropzone */
.dropzone{
  border:2px dashed var(--line);border-radius:20px;
  background:linear-gradient(180deg, rgba(29,58,42,.25), rgba(16,23,27,.4));
  padding:54px 24px;text-align:center;transition:border-color .2s,background .2s;
}
.dropzone.drag{border-color:var(--clay);background:rgba(217,139,87,.1)}
.dz-inner{display:flex;flex-direction:column;align-items:center;gap:10px}
.dz-seam{width:54px;height:54px;display:inline-block;border-radius:50%;
  background:radial-gradient(circle at 50% 50%, #fff 0 62%, #efe7d8 63% 100%);position:relative;margin-bottom:6px}
.dz-seam::before,.dz-seam::after{content:"";position:absolute;top:10px;bottom:10px;width:12px;border:3px solid var(--seam);border-radius:50%}
.dz-seam::before{left:7px;border-right:none;border-top:none}
.dz-seam::after{right:7px;border-left:none;border-bottom:none}
.dropzone h2{font-size:1.5rem;font-weight:800}
.dropzone p{color:var(--muted);font-size:.95rem;max-width:480px}

/* Panel */
.hidden{display:none!important}
.panel{margin-top:8px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.progress{display:flex;align-items:center;gap:12px;flex:1;min-width:200px}
.progress-bar{flex:1;height:8px;background:var(--line);border-radius:99px;overflow:hidden;max-width:340px}
.progress-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--clay),var(--ok));transition:width .3s}
#progText{color:var(--muted);font-size:.88rem;white-space:nowrap}
.panel-actions{display:flex;gap:10px}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.card{background:#121b20;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,border-color .2s}
.card:hover{transform:translateY(-3px);border-color:#36505c}
.card-img{position:relative;aspect-ratio:4/3;background:#0a1013;display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;display:block}
.card-img .badge{position:absolute;left:8px;top:8px;background:rgba(54,179,126,.9);color:#04130c;font-size:.72rem;font-weight:700;padding:3px 8px;border-radius:99px}
.card-img.err{font-size:.85rem;color:#f3c9c9;padding:10px;text-align:center}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px}
.card-name{font-size:.82rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}
.card-dl{padding:6px 10px;font-size:.8rem}

.spinner{width:30px;height:30px;border:3px solid var(--line);border-top-color:var(--clay);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Auth */
.auth-body{display:flex;align-items:center;justify-content:center;padding:24px}
.auth-card{width:100%;max-width:400px;background:#121b20;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--shadow)}
.auth-brand{text-align:center;margin-bottom:22px;display:flex;flex-direction:column;align-items:center;gap:8px}
.auth-brand h1{font-size:1.7rem;font-weight:800}
.auth-brand h1 em{color:var(--clay);font-style:normal}
.auth-brand p{color:var(--muted);font-size:.9rem}
.auth-tabs{display:flex;gap:8px;margin-bottom:18px;border-bottom:1px solid var(--line)}
.auth-tabs a{flex:1;text-align:center;padding:10px;color:var(--muted);text-decoration:none;font-weight:600;border-bottom:2px solid transparent;margin-bottom:-1px}
.auth-tabs a.on{color:var(--clay);border-color:var(--clay)}
.auth-form{display:flex;flex-direction:column;gap:14px}
.auth-form label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--muted)}
.auth-form input,.fld input,#marca_texto{background:#0b1216;border:1px solid var(--line);border-radius:9px;padding:11px 13px;color:var(--chalk);font:inherit}
.auth-form input:focus,.fld input:focus,input:focus-visible{outline:2px solid var(--clay);outline-offset:1px}
.auth-form button{margin-top:6px;background:var(--clay);color:#1a0e06;font-weight:700;padding:12px;border-radius:9px}

/* Modal */
.modal-overlay,.lb-overlay{position:fixed;inset:0;background:rgba(4,8,10,.78);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:50;padding:18px}
.modal-overlay.open,.lb-overlay.open{display:flex}
.modal-card{width:100%;max-width:480px;max-height:90vh;overflow:auto;background:#121b20;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.modal-head,.modal-foot{padding:16px 20px;display:flex;align-items:center;justify-content:space-between}
.modal-head{border-bottom:1px solid var(--line)}
.modal-foot{border-top:1px solid var(--line)}
.modal-body{padding:18px 20px;display:flex;flex-direction:column;gap:16px}
.x{background:none;color:var(--muted);font-size:1.6rem;line-height:1;width:34px;height:34px}
.x:hover{color:var(--chalk)}
.hint{font-size:.82rem;color:var(--muted);line-height:1.5;background:rgba(29,58,42,.3);padding:10px 12px;border-radius:9px;border-left:3px solid var(--ok)}
.fld{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--muted)}
.sliders{display:flex;flex-direction:column;gap:14px}
.slider{display:flex;flex-direction:column;gap:6px;font-size:.85rem;color:var(--chalk)}
.slider span{display:flex;justify-content:space-between}
.slider b{color:var(--clay)}
input[type=range]{-webkit-appearance:none;appearance:none;height:6px;background:var(--line);border-radius:99px;outline:none}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--clay);cursor:pointer;border:2px solid #1a0e06}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--clay);cursor:pointer;border:2px solid #1a0e06}

/* Lightbox compare */
.lb-card{position:relative;width:100%;max-width:900px;background:#0a1013;border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.lb-card .x{position:absolute;right:8px;top:8px;z-index:5;background:rgba(0,0,0,.5);border-radius:50%}
.lb-compare{position:relative;width:100%;max-height:82vh;overflow:hidden;user-select:none}
.lb-compare img{display:block;width:100%;height:auto;max-height:82vh;object-fit:contain}
.lb-before{position:absolute;inset:0;width:50%;overflow:hidden;border-right:2px solid #fff}
.lb-before img{width:100%;max-width:none}
.lb-handle{position:absolute;top:0;bottom:0;left:50%;width:36px;transform:translateX(-50%);cursor:ew-resize;display:flex;align-items:center;justify-content:center}
.lb-handle span{width:36px;height:36px;border-radius:50%;background:var(--clay);box-shadow:0 0 0 3px rgba(0,0,0,.3)}
.lb-tag{position:absolute;bottom:12px;font-size:.78rem;font-weight:700;padding:4px 10px;border-radius:99px;background:rgba(0,0,0,.6)}
.lb-tag-l{left:12px}
.lb-tag-r{right:12px;background:rgba(54,179,126,.85);color:#04130c}

@media(max-width:560px){
  .wrap{padding:18px 14px 60px}
  .dropzone{padding:36px 16px}
  .panel-actions{width:100%}
  .panel-actions button{flex:1}
  .grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
  .who{display:none}
}

/* ===== Mejoras móviles (S24 Ultra y similares) ===== */

.dz-btns{display:flex;flex-direction:column;gap:12px;width:100%;max-width:340px;margin-top:8px}
.primary.big,.ghost.big{padding:16px 20px;font-size:1.05rem;border-radius:14px;width:100%}
.ghost.big{border-width:1.5px}

/* Presets en chips deslizables */
.presets{margin:18px 0 6px}
.presets-lbl{display:block;font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}
.preset-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.preset-row::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;background:#121b20;border:1.5px solid var(--line);color:var(--chalk);padding:9px 16px;border-radius:99px;font-size:.92rem;font-weight:600;white-space:nowrap;transition:border-color .2s,background .2s,color .2s}
.chip.on{background:var(--clay);border-color:var(--clay);color:#1a0e06}

/* Barra de acción fija (thumb zone) */
.actionbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;
  display:flex;gap:10px;padding:12px 14px;
  padding-bottom:calc(12px + env(safe-area-inset-bottom));
  background:rgba(10,16,19,.92);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
}
.ab-btn{flex:1;padding:14px 10px;font-size:.95rem;border-radius:12px;text-align:center}
.ab-btn.primary{flex:1.6}
body.has-bar .wrap{padding-bottom:96px}

/* Toggle auto-niveles */
.toggle{display:flex;align-items:center;gap:12px;font-size:.92rem;color:var(--chalk);cursor:pointer;padding:4px 0}
.toggle input{width:46px;height:26px;-webkit-appearance:none;appearance:none;background:var(--line);border-radius:99px;position:relative;cursor:pointer;transition:background .2s;flex:0 0 auto}
.toggle input:checked{background:var(--clay)}
.toggle input::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .2s}
.toggle input:checked::after{transform:translateX(20px)}

/* Lightbox: pie con descarga + handle más grande para dedo */
.lb-foot{padding:12px 14px;padding-bottom:calc(12px + env(safe-area-inset-bottom));display:flex;justify-content:center;border-top:1px solid var(--line)}
.lb-foot .primary{width:100%;max-width:360px;padding:14px}
.lb-handle{width:52px}
.lb-handle span{width:44px;height:44px;display:flex;align-items:center;justify-content:center}
.lb-handle span::before{content:"⇔";color:#1a0e06;font-size:1.1rem;font-weight:900}

/* Toques: targets cómodos */
@media (max-width:560px){
  .card-dl{min-width:42px;min-height:38px;font-size:1rem}
  .chip{padding:11px 18px}
  .topbar{padding:12px 14px}
  .brand strong{font-size:1.05rem}
}

/* Cards: en celular dos columnas grandes */
@media (max-width:560px){
  .grid{grid-template-columns:1fr 1fr;gap:10px}
  .card-img{aspect-ratio:1/1}
}