*{box-sizing:border-box;margin:0;padding:0}
:root{
  --beige:#F5F0E8;--beige2:#EDE6D6;--beige3:#DDD5C0;
  --brown:#6B4C2A;--brown2:#8B6340;--brown3:#A0784E;
  --dark:#2C1A0E;--mid:#7A5C3A;
  --white:#FFFDF8;--border:#C8B89A;
  --danger:#C0392B;--success:#27AE60;--info:#2980B9;--warn:#E67E22;
  --green2:#1A6B2E;--red2:#8B2500;
}
html,body{height:100%;font-family:'Segoe UI',Tahoma,sans-serif;background:var(--beige);color:var(--dark)}
.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}

/* ── STATUS BAR ── */
.status-bar{background:var(--brown);color:#fff;padding:6px 20px;display:flex;align-items:center;justify-content:space-between;font-size:12px;flex-shrink:0;border-bottom:2px solid var(--brown2)}
.status-left{display:flex;align-items:center;gap:10px}
.status-dot{width:8px;height:8px;border-radius:50%;background:#27ae60;transition:background .3s}
.status-dot.offline{background:#c0392b;animation:pulse 1.5s infinite}
.status-dot.syncing{background:#f39c12;animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.btn-sync{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.3);padding:5px 14px;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:6px}
.btn-sync:hover{background:rgba(255,255,255,.25)}
.btn-sync:active{transform:scale(.97)}
.btn-sync i{font-size:14px}
.btn-sync.spinning i{animation:spin 1s linear infinite}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}

/* LOGIN */
.login-wrap{display:flex;align-items:center;justify-content:center;flex:1;background:var(--beige);padding:20px}
.login-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:40px 48px;width:380px;box-shadow:0 4px 24px rgba(107,76,42,.12)}
.login-logo{text-align:center;margin-bottom:28px}
.login-logo-img{max-width:300px;width:100%;height:auto;display:block;margin:0 auto 6px}
.login-logo p{font-size:11px;color:var(--mid);margin-top:4px;letter-spacing:1px;text-transform:uppercase}
.login-divider{border:none;border-top:1px solid var(--border);margin:16px 0}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:11px;font-weight:700;color:var(--mid);margin-bottom:5px;text-transform:uppercase;letter-spacing:.5px}
.form-group input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:var(--beige);font-size:14px;color:var(--dark);outline:none}
.form-group input:focus{border-color:var(--brown2);background:var(--white)}
.btn-login{width:100%;padding:12px;background:var(--brown);color:#fff;border:none;border-radius:8px;font-size:15px;font-weight:700;cursor:pointer;margin-top:6px}
.btn-login:hover{background:var(--brown2)}
.btn-login:disabled{opacity:.6;cursor:wait}
.login-err{color:var(--danger);font-size:13px;text-align:center;margin-top:10px;min-height:20px}
.login-server-err{margin-top:14px;background:#FCE4D6;color:var(--red2);border:1px solid #F0A080;border-radius:8px;padding:12px;font-size:12px;text-align:center;line-height:1.6}
.login-server-err i{font-size:18px;display:block;margin-bottom:4px}

/* TOP BAR */
.topbar{background:var(--white);color:var(--dark);padding:0 20px;height:58px;display:flex;align-items:center;justify-content:space-between;flex-shrink:0;border-bottom:2px solid var(--brown)}
.topbar-brand{display:flex;align-items:center;gap:12px}
.topbar-logo{height:44px;width:auto;display:block}
.topbar-brand-text{display:flex;flex-direction:column;line-height:1.25}
.topbar-title{font-size:14px;font-weight:700;color:var(--brown);letter-spacing:.3px}
.topbar-subtitle{font-size:11px;color:var(--mid);letter-spacing:.5px;text-transform:uppercase}
.topbar-user{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--dark)}
.badge-role{background:var(--beige2);color:var(--brown);padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700;border:1px solid var(--border)}
.btn-logout{background:var(--white);border:1px solid var(--border);color:var(--brown);padding:5px 12px;border-radius:6px;cursor:pointer;font-size:12px}
.btn-logout:hover{background:var(--beige2)}

/* LAYOUT */
.main-layout{display:flex;flex:1;overflow:hidden}
.sidebar{width:200px;background:var(--beige2);border-right:1px solid var(--border);padding:14px 0;flex-shrink:0;overflow-y:auto}
.nav-section-label{font-size:10px;font-weight:700;color:var(--mid);text-transform:uppercase;letter-spacing:1px;padding:10px 16px 4px}
.nav-item{display:flex;align-items:center;gap:9px;padding:9px 16px;cursor:pointer;font-size:13px;color:var(--dark);border-left:3px solid transparent;transition:all .15s}
.nav-item:hover{background:var(--beige3);color:var(--brown)}
.nav-item.active{background:var(--beige3);border-left-color:var(--brown);color:var(--brown);font-weight:700}
.nav-item i{font-size:16px;width:18px;flex-shrink:0}

/* GRUPOS COLAPSABLES de la barra lateral (ej. "Almacén", "Personal",
   "Administración") — agrupan varias páginas bajo un mismo encabezado
   clicable, como un ERP profesional (SAP/Odoo). JS propio (toggleNavGroup
   en app.js) en vez de <details>/<summary> para controlar bien cómo se
   ve en el menú horizontal de celular (ver media query abajo). */
.nav-group-label{cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:6px}
.nav-group-label:hover{color:var(--brown)}
.nav-group-label .nav-group-chevron{transition:transform .15s;font-size:13px;flex-shrink:0}
.nav-group.collapsed .nav-group-label .nav-group-chevron{transform:rotate(-90deg)}
.nav-group.collapsed .nav-group-items{display:none}

/* CONTENT */
.content{flex:1;padding:20px;overflow-y:auto;background:var(--beige)}
.page{display:none}
.page.active{display:block}
.page-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:18px;gap:12px}
.page-title{font-size:20px;font-weight:700;color:var(--brown)}
.page-sub{font-size:12px;color:var(--mid);margin-top:2px}
.page-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* CARDS */
.card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-bottom:14px}
.card-title{font-size:13px;font-weight:700;color:var(--brown);margin-bottom:14px;display:flex;align-items:center;gap:7px}

/* STATS */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:18px}
.stat-card{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:14px 16px}
.stat-label{font-size:10px;color:var(--mid);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px;font-weight:700}
.stat-val{font-size:26px;font-weight:700;color:var(--brown)}
.stat-sub{font-size:11px;color:var(--mid);margin-top:1px}

/* LOW STOCK ALERT */
.lowstock-card{background:#FCE4D6;border:1px solid #F0A080;border-left:4px solid var(--danger);border-radius:12px;padding:14px 18px;margin-bottom:18px;animation:lowstock-in .25s ease-out}
@keyframes lowstock-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.lowstock-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--red2);margin-bottom:10px}
.lowstock-title i{font-size:18px}
.lowstock-list{display:flex;flex-wrap:wrap;gap:8px}
.lowstock-item{background:var(--white);border:1px solid #F0A080;border-radius:8px;padding:6px 10px 6px 12px;font-size:12px;display:flex;align-items:center;gap:8px}
.lowstock-item .lsi-name{font-weight:600;color:var(--dark)}
.lowstock-item .lsi-cat{color:var(--mid);font-size:11px}
.lowstock-item .lsi-qty{background:var(--danger);color:#fff;font-weight:700;font-size:11px;padding:2px 9px;border-radius:12px;white-space:nowrap}

/* BUTTONS */
.btn{padding:7px 14px;border-radius:7px;border:1px solid var(--border);background:var(--white);color:var(--dark);font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;font-weight:500;white-space:nowrap}
.btn:hover{background:var(--beige2)}
.btn:disabled{opacity:.6;cursor:wait}
.btn-primary{background:var(--brown);color:#fff;border-color:var(--brown)}
.btn-primary:hover{background:var(--brown2)}
.btn-success{background:var(--success);color:#fff;border-color:var(--success)}
.btn-success:hover{background:#219a52}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-warn{background:var(--warn);color:#fff;border-color:var(--warn)}
.btn-sm{padding:5px 11px;font-size:12px}
.btn-xs{padding:3px 8px;font-size:11px;border-radius:5px}

/* FORMS */
.form-row{display:grid;gap:12px;margin-bottom:12px}
.form-row.cols2{grid-template-columns:1fr 1fr}
.form-row.cols3{grid-template-columns:1fr 1fr 1fr}
.form-label{font-size:11px;font-weight:700;color:var(--mid);display:block;margin-bottom:4px;text-transform:uppercase;letter-spacing:.4px}
.form-control{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:7px;background:var(--beige);font-size:13px;color:var(--dark);outline:none}
.form-control:focus{border-color:var(--brown2);background:var(--white)}
select.form-control{cursor:pointer}
.form-hint{font-size:11px;color:var(--mid);margin-top:4px}

/* EMAIL CHIPS (destinatarios de alertas) */
.email-chip{display:inline-flex;align-items:center;gap:6px;background:var(--beige2);border:1px solid var(--border);border-radius:20px;padding:6px 6px 6px 14px;font-size:12px;color:var(--dark)}
.email-chip button{background:none;border:none;color:var(--mid);cursor:pointer;font-size:13px;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;padding:0;line-height:1}
.email-chip button:hover{background:var(--danger);color:#fff}

/* DETAILS / SUMMARY (ayuda colapsable) */
details summary{color:var(--brown);font-weight:700;font-size:12px;cursor:pointer;outline:none}
details summary:hover{text-decoration:underline}
details[open] summary{margin-bottom:4px}

/* AJUSTES DE CONCILIACIÓN (incremento / merma / sin ajuste) */
.ajuste-chip{display:inline-block;padding:3px 9px;border-radius:6px;font-size:11px;font-weight:700;white-space:nowrap}
.ajuste-incremento{background:#D5EED9;color:var(--green2)}
.ajuste-merma{background:#FCE4D6;color:var(--red2)}
.ajuste-sin{background:var(--beige2);color:var(--mid)}

/* INPUTS COMPACTOS DENTRO DE TABLAS (conciliación) */
.tbl-input{width:90px;padding:5px 7px;border:1px solid var(--border);border-radius:6px;background:var(--white);font-size:12px;color:var(--dark);outline:none}
.tbl-input:focus{border-color:var(--brown2)}
.tbl-input-obs{width:160px}

/* TABLES */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:13px}
thead th{background:var(--beige2);color:var(--mid);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:8px 12px;text-align:left;border-bottom:1px solid var(--border)}
tbody td{padding:8px 12px;border-bottom:1px solid var(--beige2);color:var(--dark);vertical-align:middle}
tbody tr:hover{background:#faf7f2}
tbody tr:last-child td{border-bottom:none}

/* CHIPS */
.chip{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11px;font-weight:700}
.chip-entrada{background:#D5EED9;color:var(--green2)}
.chip-salida{background:#FCE4D6;color:var(--red2)}
.chip-cat{background:var(--beige2);color:var(--mid)}

/* SCAN */
.scan-box{background:var(--beige2);border:2px dashed var(--border);border-radius:12px;padding:20px;text-align:center;margin-bottom:14px}
.scan-input{font-size:22px;text-align:center;padding:12px;border:2px solid var(--border);border-radius:10px;background:var(--white);width:220px;color:var(--brown);font-weight:700;letter-spacing:3px}
.scan-input:focus{border-color:var(--brown);outline:none}
.scan-suggestions{position:absolute;top:calc(100% + 4px);left:50%;transform:translateX(-50%);width:min(460px,92vw);max-height:320px;overflow-y:auto;background:var(--white);border:1.5px solid var(--brown);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.18);z-index:50;text-align:left}
.scan-sug-item{padding:10px 14px;cursor:pointer;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:2px}
.scan-sug-item:last-child{border-bottom:none}
.scan-sug-item:hover,.scan-sug-item.active{background:var(--beige2)}
.scan-sug-nombre{font-weight:700;color:var(--brown);font-size:14px;letter-spacing:0}
.scan-sug-meta{font-size:11px;color:var(--mid);letter-spacing:0;font-weight:400}
.scan-sug-empty{padding:16px;text-align:center;color:var(--mid);font-size:13px;letter-spacing:0;font-weight:400}
.product-detected{background:var(--white);border:1px solid var(--success);border-left:4px solid var(--success);border-radius:10px;padding:14px 18px;margin:12px 0}
.product-name{font-size:16px;font-weight:700;color:var(--dark);margin-bottom:4px}
.product-meta{font-size:12px;color:var(--mid)}
.product-stock-breakdown{margin-top:10px;padding-top:10px;border-top:1px solid var(--beige2);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.psb-label{font-size:12px;color:var(--mid)}
.psb-chip{background:var(--beige2);color:var(--dark);font-weight:700;padding:4px 11px;border-radius:7px;font-size:12px}
.psb-chip.psb-zero{background:#FCE4D6;color:var(--red2)}

/* INV GRID */
.inv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px}
.inv-card{background:var(--white);border:1px solid var(--border);border-radius:10px;padding:14px}
.inv-card-name{font-size:13px;font-weight:700;color:var(--dark);margin-bottom:3px}
.inv-card-cat{font-size:11px;color:var(--mid);margin-bottom:8px}
.inv-card-breakdown{display:flex;flex-direction:column;gap:3px;margin-top:6px}
.inv-stock-row{display:flex;align-items:baseline;gap:6px}
.inv-stock-qty{font-size:20px;font-weight:700;min-width:1.2em}
.inv-stock-unit{font-size:11px;color:var(--mid)}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1000;display:flex;align-items:center;justify-content:center}
.modal-overlay.hidden{display:none}
.modal{background:var(--white);border-radius:14px;padding:24px;width:500px;max-width:96vw;border:1px solid var(--border);max-height:90vh;overflow-y:auto}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.modal-title{font-size:16px;font-weight:700;color:var(--brown)}
.modal-close{background:none;border:none;cursor:pointer;font-size:22px;color:var(--mid);line-height:1}
.modal-footer{display:flex;gap:8px;justify-content:flex-end;margin-top:18px;padding-top:14px;border-top:1px solid var(--border)}

/* ALERTS */
.alert{padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.alert-success{background:#D5EED9;color:var(--green2);border:1px solid #A8D8B0}
.alert-err{background:#FCE4D6;color:var(--red2);border:1px solid #F0A080}
.alert-info{background:#D6E8F5;color:#1A4A6B;border:1px solid #90BFE0}

/* HIDDEN */
.hidden{display:none!important}

/* PERM GRID */
.perm-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.perm-item{display:flex;align-items:center;gap:7px;font-size:13px;cursor:pointer;padding:6px 10px;border:1px solid var(--border);border-radius:7px;background:var(--beige)}
.perm-item input{cursor:pointer;width:15px;height:15px}
.perm-item.checked{background:#D5EED9;border-color:#A8D8B0}

/* REPORT CARDS */
.report-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:18px}
.report-card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:20px;text-align:center;cursor:pointer;transition:transform .15s,box-shadow .15s}
.report-card:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(107,76,42,.1)}
.report-icon{font-size:40px;margin-bottom:10px}
.report-name{font-size:14px;font-weight:700;color:var(--brown);margin-bottom:4px}
.report-desc{font-size:12px;color:var(--mid);margin-bottom:14px}

code{background:var(--beige2);padding:1px 6px;border-radius:4px;font-family:monospace;font-size:12px}

/* Toast */
.toast{position:fixed;bottom:24px;right:24px;background:var(--dark);color:#fff;padding:12px 20px;border-radius:10px;font-size:13px;z-index:9999;display:flex;align-items:center;gap:8px;box-shadow:0 4px 20px rgba(0,0,0,.3);transform:translateY(80px);opacity:0;transition:all .3s;max-width:360px}
.toast.show{transform:translateY(0);opacity:1}
.toast.toast-ok{background:var(--success)}
.toast.toast-err{background:var(--danger)}

/* Responsive */
@media (max-width:900px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .report-grid{grid-template-columns:1fr}
  .form-row.cols2,.form-row.cols3{grid-template-columns:1fr}
  .sidebar{width:160px}
}

/* Celular — pensado para Pago a Proveedores y el portal del proveedor,
   que es donde se suben fotos tomadas con la cámara, pero beneficia a
   cualquier pantalla del sistema abierta desde un teléfono. */
@media (max-width:640px){
  .login-card{width:100%;padding:28px 20px}
  .topbar{padding:0 12px;height:52px}
  .topbar-subtitle{display:none}
  .topbar-logo{height:34px}
  .topbar-user{gap:6px;font-size:12px}
  .topbar-user span{display:none} /* el nombre/rol no caben, el botón "Salir" sí */
  /* El menú lateral se vuelve una franja horizontal arriba — así Caja y
     Contabilidad, que solo ven 2 opciones, no pierden media pantalla. */
  .main-layout{flex-direction:column}
  .sidebar{width:100%;height:auto;max-height:46px;overflow-x:auto;overflow-y:hidden;white-space:nowrap;padding:6px 8px;border-right:none;border-bottom:1px solid var(--border);display:flex;align-items:center}
  .sidebar .nav-section-label{display:none}
  /* Los grupos colapsables (Almacén, Personal, Administración) se
     "desarman" en celular: el encabezado se oculta y sus páginas quedan
     sueltas en la misma franja horizontal, igual que las demás — en
     pantalla chica no hay espacio para colapsar nada y todo debe caber
     en una sola fila con scroll. */
  .sidebar .nav-group, .sidebar .nav-group-items{display:contents}
  .sidebar .nav-group.collapsed .nav-group-items{display:contents}
  .sidebar .nav-group-label{display:none}
  .sidebar .nav-item{display:inline-flex;flex-shrink:0;border-left:none;border-bottom:3px solid transparent;padding:8px 10px;white-space:nowrap}
  .sidebar .nav-item.active{border-left-color:transparent;border-bottom-color:var(--brown)}
  .card{padding:14px}
  .modal{padding:16px;width:94vw}
  .tbl-wrap table{font-size:12px}
  /* Fila de documento/línea (Proveedores): que la etiqueta no empuje el
     botón fuera de la pantalla — se apilan en vez de ir en una sola fila. */
  .prov-fila-doc{flex-wrap:wrap}
  .prov-fila-doc>div:first-child{width:auto!important}
  input[type="file"]{max-width:100%}
  .btn,.btn-sm,.btn-xs,.btn-primary{min-height:34px}
}

/* Secciones colapsables (Categorías, Unidades de Medida) */
.collapse-card{padding:0;overflow:hidden}
.collapse-card>summary{list-style:none;cursor:pointer;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.collapse-card>summary::-webkit-details-marker{display:none}
.collapse-card>summary .chevron{transition:transform .2s;color:var(--mid);font-size:18px;flex-shrink:0}
.collapse-card[open]>summary .chevron{transform:rotate(180deg)}
.collapse-card>summary:hover{background:var(--beige2)}
.collapse-card .collapse-body{padding:0 20px 18px 20px}
.collapse-count{font-size:11px;font-weight:700;color:#fff;background:var(--brown);border-radius:10px;padding:1px 8px;margin-left:2px}