:root{
  --azul:#1F3A5F; --azul2:#2E5A8C; --acento:#C78A2B; --verde:#2E7D5B;
  --rojo:#B23A48; --gris:#8A939E; --gris-cl:#C7CDD4; --linea:#D8DEE6;
  --fondo:#F4F6F9; --blanco:#FFFFFF; --ink:#2B2F36;
  --verde-cl:#E6F2EC; --rojo-cl:#FBEEF0; --ambar-cl:#FBF2E0; --azul-cl:#E6EDF5;
}
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',Calibri,system-ui,sans-serif;background:var(--fondo);color:var(--ink);font-size:14px}
a{color:var(--azul2);text-decoration:none}
.app{display:flex;min-height:100vh}

/* Sidebar */
.sidebar{width:244px;background:linear-gradient(180deg,#213E66 0%,#1A3152 100%);color:#fff;flex-shrink:0;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}

/* Marca */
.sidebar .brand{display:flex;align-items:center;gap:11px;padding:16px 16px 15px;border-bottom:1px solid rgba(255,255,255,.09)}
.sidebar .brand .logo{width:34px;height:34px;border-radius:9px;background:var(--acento);display:grid;place-items:center;font-size:17px;flex-shrink:0;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.sidebar .brand b{font-size:15px;letter-spacing:.4px;line-height:1.15;display:block}
.sidebar .brand small{color:#93A9C4;display:block;font-size:10.5px;margin-top:1px}

/* Navegación */
.sidebar nav{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:1px;padding:10px 9px 14px}
.sidebar nav a{display:flex;align-items:center;gap:10px;color:#B9C6D8;padding:8px 11px;border-radius:8px;font-size:13.5px;line-height:1.25;transition:background .12s,color .12s}
.sidebar nav a .ic{width:19px;flex-shrink:0;text-align:center;font-size:14px;opacity:.92}
.sidebar nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.sidebar nav a.active{background:rgba(255,255,255,.13);color:#fff;font-weight:600;box-shadow:inset 3px 0 0 var(--acento)}
.sidebar nav a.active .ic{opacity:1}
.sidebar nav .navsec{color:#7C91AD;font-size:9.5px;font-weight:700;letter-spacing:.9px;text-transform:uppercase;margin:14px 11px 4px;padding-top:11px;border-top:1px solid rgba(255,255,255,.08)}
.sidebar nav .navsec:first-of-type{margin-top:8px}

/* Barra de scroll discreta */
.sidebar nav::-webkit-scrollbar{width:6px}
.sidebar nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:3px}
.sidebar nav::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.25)}
.sidebar nav::-webkit-scrollbar-track{background:transparent}

/* Pie: usuario */
.sidebar .foot{padding:12px 14px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;color:#9FB3CC;background:rgba(0,0,0,.12)}
.sidebar .foot .usr{display:flex;align-items:center;gap:9px}
.sidebar .foot .avatar{width:31px;height:31px;border-radius:50%;background:var(--azul2);color:#fff;display:grid;place-items:center;font-size:12.5px;font-weight:700;flex-shrink:0}
.sidebar .foot .usr b{color:#fff;font-size:12.5px;font-weight:600;display:block;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sidebar .foot .usr small{font-size:10.5px;color:#93A9C4}
.sidebar .foot .salir{width:100%;margin-top:10px;padding:7px;font-size:11.5px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#C9D6E6;border-radius:7px;cursor:pointer;font-weight:600}
.sidebar .foot .salir:hover{background:rgba(255,255,255,.15);color:#fff}

/* Main */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--linea);padding:14px 26px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:5}
.topbar h1{margin:0;font-size:20px;color:var(--azul)}
.topbar .sub{color:var(--gris);font-size:13px;margin-top:2px}
.topbar .user{font-size:13px;color:var(--ink)}
.content{padding:22px 26px;flex:1}

/* Cards */
.card{background:#fff;border:1px solid var(--linea);border-radius:10px;padding:18px;margin-bottom:18px}
.card h2,.card h3{color:var(--azul);margin-top:0}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:2fr 1fr}
.row{display:flex;gap:16px;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--azul);background:var(--azul);color:#fff;padding:9px 16px;border-radius:8px;font-size:14px;cursor:pointer;font-weight:600;text-decoration:none;line-height:1}
.btn:hover{opacity:.92}
.btn.sec{background:#fff;color:var(--azul)}
.btn.success{background:var(--verde);border-color:var(--verde)}
.btn.danger{background:var(--rojo);border-color:var(--rojo)}
.btn.accent{background:var(--acento);border-color:var(--acento)}
.btn.ghost{background:var(--fondo);color:var(--gris);border-color:var(--gris-cl)}
.btn.lg{padding:16px 22px;font-size:17px;border-radius:10px}
.btn.block{width:100%;justify-content:center}

/* Forms */
label{display:block;font-size:12px;color:var(--gris);font-weight:700;margin-bottom:4px;margin-top:10px}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--gris-cl);border-radius:8px;font-size:14px;font-family:inherit;background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--azul2);box-shadow:0 0 0 3px var(--azul-cl)}
.field-inline{display:flex;gap:12px;flex-wrap:wrap}
.field-inline>div{flex:1;min-width:140px}

/* Tables */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{background:#EEF2F7;color:var(--azul);text-align:left;padding:10px 12px;font-size:12.5px;border-bottom:1px solid var(--linea)}
td{padding:10px 12px;border-bottom:1px solid var(--linea)}
tr:hover td{background:#FAFBFD}
.table-card{background:#fff;border:1px solid var(--linea);border-radius:10px;overflow:hidden}

/* Badges */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11.5px;font-weight:700}
.badge.verde{background:var(--verde-cl);color:var(--verde)}
.badge.rojo{background:var(--rojo-cl);color:var(--rojo)}
.badge.ambar{background:var(--ambar-cl);color:var(--acento)}
.badge.gris{background:#ECEFF3;color:var(--gris)}
.badge.azul{background:var(--azul-cl);color:var(--azul2)}

/* Callouts */
.callout{border-left:4px solid var(--acento);background:var(--fondo);padding:12px 16px;border-radius:6px;margin:12px 0}
.callout.rojo{border-color:var(--rojo);background:var(--rojo-cl)}
.callout.verde{border-color:var(--verde);background:var(--verde-cl)}
.callout.azul{border-color:var(--azul);background:var(--azul-cl)}
.muted{color:var(--gris);font-size:13px}

/* Progress */
.progress{background:#ECEFF3;border-radius:20px;height:26px;position:relative;overflow:hidden}
.progress .bar{background:var(--verde);height:100%;border-radius:20px;transition:width .3s}
.progress .lbl{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}

/* Toolbar */
.toolbar{display:flex;gap:12px;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.toolbar .spacer{flex:1}
.stat-summary{background:#EEF2F7;border-radius:8px;padding:12px 16px;display:flex;gap:26px;flex-wrap:wrap;align-items:center}
.stat-summary b{color:var(--azul)}

/* Alerts */
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-weight:600}
.alert.ok{background:var(--verde-cl);color:var(--verde)}
.alert.err{background:var(--rojo-cl);color:var(--rojo)}

/* Auth */
.auth-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#1F3A5F,#2E5A8C)}
.auth-card{background:#fff;border-radius:14px;padding:34px;width:380px;box-shadow:0 20px 50px rgba(0,0,0,.25)}
.auth-card h1{color:var(--azul);margin:0 0 4px;font-size:22px}
.auth-card .demo{margin-top:16px;font-size:12px;color:var(--gris);background:var(--fondo);padding:10px;border-radius:8px}

/* Scan screen */
.scan-screen{padding:0}
.scan-head{padding:16px 26px;color:#fff;font-size:19px;font-weight:700;display:flex;justify-content:space-between;align-items:center}
.scan-head.verde{background:var(--verde)} .scan-head.azul{background:var(--azul2)}
.scan-box{border:2px solid var(--verde);border-radius:12px;padding:18px;background:#fff}
.scan-box.azul{border-color:var(--azul2)}
.scan-box input{font-size:20px;padding:14px;text-align:center}
.big-num{font-size:15px}
.label-preview{border:1.5px solid var(--ink);border-radius:6px;padding:10px;width:230px;text-align:center;background:#fff;margin:0 auto}
.label-preview .bc{margin:8px 0}
@media(max-width:820px){.grid-2{grid-template-columns:1fr}.sidebar{display:none}}