*{box-sizing:border-box}
:root{--yellow:#ffe600;--navy:#2d3277;--navy2:#20265f;--bg:#f4f4f4;--card:#fff;--text:#222;--muted:#6b7280;--line:#e5e7eb;--green:#16883f;--red:#c62828;--orange:#c46a00}
body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg);color:var(--text)}
.topbar{background:var(--yellow);padding:18px 4%;display:flex;align-items:center;justify-content:space-between;gap:20px;position:sticky;top:0;z-index:10;box-shadow:0 2px 10px #00000012}
.brand{display:flex;align-items:center;gap:14px}.brand-mark{width:48px;height:48px;border-radius:14px;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:24px}
.brand h1{font-size:20px;margin:0;color:var(--navy2)}.brand p{margin:3px 0 0;color:#4b4b4b;font-size:13px}.top-actions{display:flex;gap:10px;flex-wrap:wrap}
.container{max-width:1550px;margin:24px auto;padding:0 22px 50px}
.summary-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-bottom:18px}.summary-card{background:#fff;border-radius:16px;padding:18px;box-shadow:0 3px 16px #0000000a;border:1px solid #eee}
.summary-card span{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}.summary-card strong{font-size:28px;color:var(--navy)}.summary-card.alert strong{color:var(--orange)}.summary-card.danger strong{color:var(--red)}
.card{background:#fff;border:1px solid #eee;border-radius:18px;padding:18px;box-shadow:0 4px 18px #0000000a;margin-bottom:18px}.toolbar{display:flex;justify-content:space-between;gap:16px;align-items:center}
.search-wrap{flex:1}.filter-wrap{display:flex;gap:10px;min-width:430px}
input,select,textarea{width:100%;border:1px solid #d7d9df;border-radius:10px;padding:11px 12px;font:inherit;background:#fff;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--navy);box-shadow:0 0 0 3px #2d327715}
.tabs{display:flex;gap:8px;overflow:auto;padding:4px 0 14px}.tab{border:1px solid #ddd;background:#fff;border-radius:999px;padding:9px 14px;white-space:nowrap;cursor:pointer;font-weight:600;color:#484848}.tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.section-head{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:16px}.section-head h2{margin:0 0 4px;font-size:20px;color:var(--navy2)}.section-head p{margin:0;color:var(--muted);font-size:13px}
.btn{border:none;border-radius:10px;padding:10px 15px;font-weight:700;cursor:pointer}.btn.primary{background:var(--navy);color:#fff}.btn.primary:hover{background:var(--navy2)}.btn.secondary{background:#fff;color:var(--navy);border:1px solid #cfd1df}.btn.small{padding:7px 9px;font-size:11px}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:1180px}th,td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:12px;vertical-align:middle}th{color:#6a6d75;font-size:11px;text-transform:uppercase;letter-spacing:.03em}
.product-name{font-weight:700}.stock{font-weight:800;font-size:15px}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;font-weight:700;font-size:10px}.badge.ok{background:#e7f6ec;color:var(--green)}.badge.low{background:#fff3dc;color:var(--orange)}.badge.out{background:#ffe8e8;color:var(--red)}
.actions{display:flex;gap:5px;flex-wrap:wrap}.empty{text-align:center;padding:35px;color:var(--muted)}.hidden{display:none!important}.history-card{margin-top:26px}
.modal{border:none;border-radius:18px;padding:0;max-width:580px;width:calc(100% - 28px);box-shadow:0 25px 70px #0004}.modal::backdrop{background:#1118;backdrop-filter:blur(2px)}.modal-card{padding:22px}.modal-card.large{width:min(900px,calc(100vw - 40px));max-width:900px}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:15px;margin-bottom:18px}.modal-head h3{margin:0 0 5px;color:var(--navy2)}.modal-head p{margin:0;color:var(--muted);font-size:13px}.modal-card label{display:block;font-size:13px;font-weight:700;margin:13px 0}.modal-card label input,.modal-card label select,.modal-card label textarea{margin-top:6px;font-weight:400}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.icon-btn{border:none;background:transparent;font-size:28px;line-height:1;cursor:pointer;color:#777}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}
.qr-printable{text-align:center;border:1px dashed #c7c7c7;border-radius:14px;padding:20px;background:#fff}.qr-brand{font-weight:800;color:var(--navy);margin-bottom:16px}#qrcode{display:flex;justify-content:center;margin:10px auto}#qrData{white-space:pre-line;color:#444;line-height:1.5}#qrCodeText{color:#999;word-break:break-all}
.toast{position:fixed;right:20px;bottom:20px;background:#222;color:#fff;padding:12px 16px;border-radius:10px;opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s;z-index:50}.toast.show{opacity:1;transform:none}
@media(max-width:1050px){.summary-grid{grid-template-columns:repeat(2,1fr)}.toolbar{flex-direction:column;align-items:stretch}.filter-wrap{min-width:0}.topbar{align-items:flex-start}}
@media(max-width:650px){.summary-grid{grid-template-columns:1fr 1fr}.filter-wrap{flex-direction:column}.topbar{position:static;flex-direction:column}.top-actions{width:100%}.top-actions .btn{flex:1}.grid-2,.grid-3{grid-template-columns:1fr}}
@media print{body *{visibility:hidden!important}#qrPrintable,#qrPrintable *{visibility:visible!important}#qrPrintable{position:absolute;left:0;top:0;width:100%;border:none}}

/* V3: formularios más compactos y sin scroll innecesario */
.modal-card{
  max-height: 90vh;
  overflow: visible;
}
#productModal .modal-card{
  max-width: 760px;
  padding: 18px;
}
#productModal .modal-head{
  margin-bottom: 10px;
}
#productModal .modal-card label{
  margin: 8px 0;
}
#productModal input,
#productModal select{
  padding: 9px 10px;
}
#productModal .modal-actions{
  margin-top: 12px;
}
@media(max-height:700px){
  #productModal .modal-card{
    transform: scale(.92);
    transform-origin: center center;
  }
}


/* V4: modal de producto grande, centrado y sin desplazamiento horizontal */
#productModal{
  width: min(980px, calc(100vw - 32px));
  max-width: 980px;
  overflow: hidden;
}

#productModal .modal-card,
#productModal .modal-card.large{
  width: 100%;
  max-width: none;
  max-height: none;
  overflow: hidden;
  padding: 22px 26px;
}

#productModal .grid-2{
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

#productModal .grid-3{
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

#productModal input,
#productModal select{
  min-width: 0;
}

#productModal .modal-actions{
  padding-top: 4px;
}

@media(max-width: 760px){
  #productModal{
    width: calc(100vw - 20px);
    max-width: none;
  }

  #productModal .grid-2,
  #productModal .grid-3{
    grid-template-columns: 1fr;
  }

  #productModal .modal-card,
  #productModal .modal-card.large{
    max-height: 92vh;
    overflow-y: auto;
    overflow-x: hidden;
  }
}

/* V5: vista simplificada, solo stock disponible */
.summary-grid{
  grid-template-columns:repeat(3,1fr);
}
@media(max-width:900px){
  .summary-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:550px){
  .summary-grid{grid-template-columns:1fr}
}

.tab-count{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:20px;
  height:20px;
  padding:0 6px;
  margin-left:5px;
  border-radius:999px;
  background:#f0f1f5;
  color:#555;
  font-size:10px;
  font-weight:800;
}
.tab.active .tab-count{
  background:#fff;
  color:var(--navy);
}