/* ===== Sistema de Kardex — hoja de estilos base ===== */
:root{
  --azul:#12395b; --azul-2:#1d5f92; --acento:#0f9d8f;
  --texto:#1f2a36; --suave:#64748b; --linea:#e2e8f0; --fondo:#f4f6f9;
  --ok:#0f9d58; --error:#c8372d; --warn:#d98324; --info:#1d5f92;
  --radio:8px; --sombra:0 1px 3px rgba(16,24,40,.08), 0 1px 2px rgba(16,24,40,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI",system-ui,Roboto,Arial,sans-serif;font-size:14px;
     color:var(--texto);background:var(--fondo)}
a{color:var(--azul-2);text-decoration:none}
h1,h2,h3{margin:0 0 .6rem;font-weight:600}

/* Layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--azul);color:#cfe0ee;flex-shrink:0;
         display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{display:flex;align-items:center;gap:10px;padding:18px 16px;border-bottom:1px solid rgba(255,255,255,.1)}
.brand-mark{width:34px;height:34px;border-radius:8px;background:var(--acento);color:#fff;
            display:grid;place-items:center;font-weight:700;font-size:18px}
.brand-text{color:#fff;font-weight:600;display:flex;flex-direction:column;line-height:1.15}
.brand-text small{font-weight:400;font-size:11px;color:#9fc0d8}
.empresa-activa{padding:11px 16px;border-bottom:1px solid rgba(255,255,255,.1);
                display:flex;flex-direction:column;gap:1px;background:rgba(0,0,0,.15)}
.empresa-etiqueta{font-size:10px;text-transform:uppercase;letter-spacing:.07em;color:#7ea4c2}
.empresa-nombre{color:#fff;font-weight:600;font-size:13.5px;
                white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.empresa-ruc{font-size:11px;color:#9fc0d8}
.selector-empresa{width:auto;max-width:190px;padding:5px 8px;font-size:12.5px;
                  border-color:var(--acento);font-weight:600;color:var(--azul)}
.menu{padding:10px 0;display:flex;flex-direction:column}
.menu a{padding:9px 18px;color:#cfe0ee;font-size:13.5px;border-left:3px solid transparent}
.menu a:hover{background:rgba(255,255,255,.07);color:#fff}
.menu a.activo{background:rgba(255,255,255,.12);border-left-color:var(--acento);color:#fff}
.menu-grupo{padding:14px 18px 5px;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#7ea4c2}
.contenedor{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:14px;background:#fff;padding:12px 20px;
        border-bottom:1px solid var(--linea);position:sticky;top:0;z-index:5}
.topbar h1{margin:0;font-size:17px;flex:1}
.usuario-box{display:flex;align-items:center;gap:10px}
.usuario-nombre{font-size:13px;color:var(--suave)}
.contenido{padding:20px;flex:1}
.pie{padding:12px 20px;color:var(--suave);font-size:12px;border-top:1px solid var(--linea)}
.btn-icono{display:none;background:none;border:0;font-size:20px;cursor:pointer}

/* Tarjetas */
.tarjeta{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);
         box-shadow:var(--sombra);margin-bottom:18px}
.tarjeta-cab{padding:12px 16px;border-bottom:1px solid var(--linea);display:flex;
             align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.tarjeta-cab h2{font-size:15px;margin:0}
.tarjeta-cuerpo{padding:16px}

/* Indicadores */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px}
.kpi{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);padding:14px 16px;box-shadow:var(--sombra)}
.kpi .etiqueta{color:var(--suave);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.kpi .valor{font-size:26px;font-weight:600;margin-top:4px}
.kpi.alerta .valor{color:var(--warn)} .kpi.peligro .valor{color:var(--error)}
.kpi.exito .valor{color:var(--ok)}

/* Tablas */
.tabla-scroll{overflow-x:auto}
table.tabla{width:100%;border-collapse:collapse;background:#fff}
table.tabla th,table.tabla td{padding:9px 10px;border-bottom:1px solid var(--linea);text-align:left;white-space:nowrap}
table.tabla th{background:#f8fafc;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--suave)}
table.tabla tbody tr:hover{background:#f9fbfd}
table.tabla td.num,table.tabla th.num{text-align:right;font-variant-numeric:tabular-nums}
.vacio{padding:26px;text-align:center;color:var(--suave)}

/* Formularios */
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.campo{display:flex;flex-direction:column;gap:5px}
.campo label{font-size:12.5px;color:var(--suave);font-weight:600}
input,select,textarea{padding:8px 10px;border:1px solid #cbd5e1;border-radius:6px;font:inherit;background:#fff;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(29,95,146,.25);border-color:var(--azul-2)}
input[readonly]{background:#f1f5f9;color:var(--suave)}
.filtros{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.filtros .campo{min-width:150px}

/* Botones */
.btn{display:inline-block;padding:8px 14px;border-radius:6px;border:1px solid transparent;
     background:var(--azul-2);color:#fff;cursor:pointer;font:inherit;line-height:1.2}
.btn:hover{filter:brightness(1.08)}
.btn-sm{padding:5px 9px;font-size:12.5px}
.btn-gris{background:#fff;color:var(--texto);border-color:#cbd5e1}
.btn-verde{background:var(--ok)} .btn-rojo{background:var(--error)} .btn-naranja{background:var(--warn)}
.acciones{display:flex;gap:6px}

/* Alertas y badges */
.alerta{padding:11px 14px;border-radius:var(--radio);margin-bottom:14px;border:1px solid}
.alerta-ok,.alerta-success{background:#e8f6ee;border-color:#b7e0c8;color:#14663d}
.alerta-error{background:#fdecea;border-color:#f5c2bd;color:#8d2318}
.alerta-warning{background:#fdf3e3;border-color:#f2d9ae;color:#8a5510}
.alerta-info{background:#e9f1f8;border-color:#bcd6ea;color:#154a72}
.badge{display:inline-block;padding:2px 8px;border-radius:99px;font-size:11.5px;
       background:#e9f1f8;color:var(--azul-2);border:1px solid #bcd6ea}
.badge-ok{background:#e8f6ee;color:#14663d;border-color:#b7e0c8}
.badge-error{background:#fdecea;color:#8d2318;border-color:#f5c2bd}
.badge-warn{background:#fdf3e3;color:#8a5510;border-color:#f2d9ae}

/* Autocompletado */
.autocomplete{position:relative}
.autocomplete-lista{position:absolute;z-index:20;top:100%;left:0;right:0;background:#fff;
  border:1px solid var(--linea);border-radius:0 0 6px 6px;max-height:260px;overflow-y:auto;box-shadow:var(--sombra)}
.autocomplete-lista div{padding:8px 10px;cursor:pointer;border-bottom:1px solid #f1f5f9;font-size:13px}
.autocomplete-lista div:hover,.autocomplete-lista div.sel{background:#eef5fb}
.autocomplete-lista .stock{float:right;color:var(--suave);font-size:12px}

/* Ventana de selección de productos */
.modal-fondo{position:fixed;inset:0;background:rgba(16,24,40,.55);z-index:100;
             display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto}
.modal-caja{background:#fff;border-radius:10px;width:100%;max-width:980px;
            box-shadow:0 20px 60px rgba(0,0,0,.3);display:flex;flex-direction:column;max-height:88vh}
.modal-cab{display:flex;align-items:center;justify-content:space-between;gap:12px;
           padding:14px 18px;border-bottom:1px solid var(--linea)}
.modal-cab h2{margin:0;font-size:16px}
.modal-cerrar{background:none;border:0;font-size:24px;line-height:1;cursor:pointer;color:var(--suave);padding:0 4px}
.modal-cerrar:hover{color:var(--error)}
.modal-filtros{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;padding:14px 18px;
               border-bottom:1px solid var(--linea);background:#f8fafc}
.modal-filtros .campo{min-width:180px;margin:0}
.modal-cuerpo{overflow-y:auto;flex:1;min-height:180px}
.modal-pie{display:flex;align-items:center;justify-content:space-between;gap:12px;
           padding:12px 18px;border-top:1px solid var(--linea);flex-wrap:wrap}
.modal-conteo{color:var(--suave);font-size:12.5px}
table.tabla tr.fila-elegible{cursor:pointer}
table.tabla tr.fila-elegible:hover{background:#eef5fb}
table.tabla tr.marcada{background:#e8f6ee}
table.tabla tr.sin-stock td{color:var(--suave)}
.modal-cargando{padding:30px;text-align:center;color:var(--suave)}

/* Login */
.login-wrap{min-height:100vh;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--azul) 0%,var(--azul-2) 100%);padding:20px}
.login-card{background:#fff;border-radius:12px;padding:30px;width:100%;max-width:380px;
  box-shadow:0 12px 40px rgba(0,0,0,.25)}
.login-card h1{font-size:20px;text-align:center}
.login-card p.sub{text-align:center;color:var(--suave);margin:0 0 20px;font-size:13px}
.login-card .btn{width:100%;padding:11px;margin-top:6px}

/* Paginación */
.paginacion{display:flex;gap:5px;padding:12px 16px;flex-wrap:wrap;align-items:center}
.paginacion a,.paginacion span{padding:5px 10px;border:1px solid var(--linea);border-radius:6px;background:#fff}
.paginacion .actual{background:var(--azul-2);color:#fff;border-color:var(--azul-2)}

@media (max-width:900px){
  .sidebar{position:fixed;left:-240px;z-index:50;transition:left .2s}
  .sidebar.abierto{left:0}
  .btn-icono{display:block}
}
@media print{
  .sidebar,.topbar,.pie,.filtros,.acciones,.btn{display:none!important}
  body{background:#fff} .contenido{padding:0}
}