*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d0f14;--bg2:#13161e;--bg3:#1a1e2a;--bg4:#22273a;--border:#2a2f42;--border2:#353b52;
  --txt:#e8eaf0;--txt2:#9aa0b8;--txt3:#636880;
  --acc:#60a5fa;--acc-bg:rgba(96,165,250,.14);--green:#34d399;--green-bg:rgba(52,211,153,.13);
  --red:#f87171;--red-bg:rgba(248,113,113,.13);--amber:#f59e0b;--amber-bg:rgba(245,158,11,.13);
  --violet:#a78bfa;--violet-bg:rgba(167,139,250,.13);--radius:10px;--radius2:14px;
  font-family:'DM Sans',sans-serif;
}
body{background:var(--bg);color:var(--txt);min-height:100vh;font-size:14px;line-height:1.5}
button,input,select,textarea{font-family:inherit;font-size:13px;color:var(--txt)}
.oculto{display:none!important}
.mono{font-family:'DM Mono',monospace}
.muted{color:var(--txt3)} .muted2{color:var(--txt2)} .der{text-align:right} .centro{text-align:center}
.neg{color:var(--red)} .pos{color:var(--green)}

/* ---- login ---- */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{width:100%;max-width:400px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:28px}
.auth-card h1{font-size:20px;margin-bottom:4px} .auth-card .sub{color:var(--txt3);font-size:12px;margin-bottom:18px}
.tabs{display:flex;gap:4px;background:var(--bg3);padding:4px;border-radius:9px;margin-bottom:16px}
.tab{flex:1;text-align:center;padding:7px;border-radius:6px;cursor:pointer;color:var(--txt2);font-weight:500;border:none;background:none}
.tab.on{background:var(--bg4);color:var(--txt)}
.linklike{background:none;border:none;color:var(--acc);cursor:pointer;font-size:12px;padding:0}

/* ---- shell ---- */
.app{display:grid;grid-template-columns:230px 1fr;grid-template-rows:auto 1fr;min-height:100vh}
.topbar{grid-column:1/-1;background:var(--bg2);border-bottom:1px solid var(--border);padding:0 16px 0 20px;display:flex;align-items:center;justify-content:space-between;min-height:56px;gap:10px}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:32px;height:32px;background:linear-gradient(135deg,var(--acc),var(--violet));border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:15px;color:#fff}
.brand b{font-size:15px;font-weight:600} .brand small{display:block;font-size:11px;color:var(--txt3);font-family:'DM Mono',monospace}
.sidebar{background:var(--bg2);border-right:1px solid var(--border);padding:14px 10px;display:flex;flex-direction:column;gap:3px;overflow-y:auto}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;cursor:pointer;color:var(--txt2);font-weight:500;background:none;border:none;text-align:left;width:100%}
.nav-item:hover,.nav-item.on{background:var(--bg4);color:var(--txt)} .nav-item i{width:16px;text-align:center}
.main{padding:22px 24px;overflow-x:hidden;min-width:0}
.pagina-titulo{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px;flex-wrap:wrap}
.pagina-titulo h2{font-size:19px;font-weight:600}
.menu-btn{display:none}
@media(max-width:820px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:56px;bottom:0;width:230px;z-index:40;transform:translateX(-100%);transition:transform .2s}
  .sidebar.abierto{transform:none} .menu-btn{display:inline-flex}
  .main{padding:14px}
}

/* ---- componentes ---- */
.btn{background:var(--bg4);border:1px solid var(--border2);color:var(--txt2);padding:7px 14px;border-radius:7px;cursor:pointer;font-weight:500;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{background:var(--border2);color:var(--txt)} .btn:disabled{opacity:.5;cursor:not-allowed}
.btn.prim{background:var(--acc);border-color:var(--acc);color:#04121f;font-weight:600} .btn.prim:hover{opacity:.88}
.btn.ok{background:var(--green-bg);border-color:rgba(52,211,153,.35);color:var(--green)}
.btn.peligro{background:var(--red-bg);border-color:rgba(248,113,113,.3);color:var(--red)}
.btn.chico{padding:4px 9px;font-size:12px}
.card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);margin-bottom:16px;overflow:hidden}
.card-head{padding:13px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.card-head h3{font-size:14px;font-weight:600} .card-body{padding:16px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px} .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.grid2,.grid3{grid-template-columns:1fr}}
.kpis{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;margin-bottom:16px}
.kpi{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);padding:14px 16px}
.kpi .l{font-size:11px;color:var(--txt3);text-transform:uppercase;letter-spacing:.6px} .kpi .v{font-size:22px;font-weight:600;margin:4px 0 2px;font-family:'DM Mono',monospace}
.kpi .s{font-size:11px;color:var(--txt3)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px} .form-grid .full{grid-column:1/-1}
@media(max-width:560px){.form-grid{grid-template-columns:1fr}}
.campo label{display:block;font-size:11px;color:var(--txt2);margin-bottom:4px;font-weight:500}
.campo .ayuda{font-size:11px;color:var(--txt3);margin-top:3px}
input,select,textarea{width:100%;background:var(--bg3);border:1px solid var(--border2);border-radius:7px;padding:8px 10px;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--acc)} input[type=checkbox],input[type=radio]{width:auto}
.filtros{display:flex;gap:8px;flex-wrap:wrap;align-items:flex-end;margin-bottom:12px} .filtros .campo{min-width:130px;flex:1;max-width:220px}
.tbl-wrap{overflow-x:auto} table{width:100%;border-collapse:collapse}
th{font-size:11px;color:var(--txt3);text-transform:uppercase;letter-spacing:.5px;text-align:left;padding:9px 12px;border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:middle} tr:last-child td{border-bottom:none}
tr.click{cursor:pointer} tr.click:hover td{background:var(--bg3)}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11px;font-weight:500;white-space:nowrap}
.t-ok{background:var(--green-bg);color:var(--green)} .t-mal{background:var(--red-bg);color:var(--red)}
.t-warn{background:var(--amber-bg);color:var(--amber)} .t-info{background:var(--acc-bg);color:var(--acc)} .t-gris{background:var(--bg4);color:var(--txt2)} .t-viol{background:var(--violet-bg);color:var(--violet)}
.vacio{padding:34px;text-align:center;color:var(--txt3)}
.aviso{padding:10px 14px;border-radius:9px;font-size:13px;margin-bottom:12px;background:var(--amber-bg);color:var(--amber);border:1px solid rgba(245,158,11,.25)}
.aviso.mal{background:var(--red-bg);color:var(--red);border-color:rgba(248,113,113,.25)} .aviso.ok{background:var(--green-bg);color:var(--green);border-color:rgba(52,211,153,.25)}
.chart-wrap{position:relative;height:250px}
.lista-rank{list-style:none} .lista-rank li{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px solid var(--border)} .lista-rank li:last-child{border:none}
.alerta{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;margin-bottom:8px;cursor:pointer;background:var(--bg3);border:1px solid var(--border)}
.alerta:hover{border-color:var(--border2)} .alerta i{width:18px;text-align:center}

/* ---- punto de venta ---- */
.pos{display:grid;grid-template-columns:1.25fr 1fr;gap:16px;align-items:start} @media(max-width:1000px){.pos{grid-template-columns:1fr}}
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:9px;max-height:520px;overflow-y:auto;padding:2px}
.prod{background:var(--bg3);border:1px solid var(--border);border-radius:10px;padding:10px;cursor:pointer;text-align:left}
.prod:hover{border-color:var(--acc)} .prod b{display:block;font-size:13px;font-weight:500;margin-bottom:3px} .prod .pr{font-family:'DM Mono',monospace;color:var(--acc)} .prod .st{font-size:11px;color:var(--txt3)}
.prod.agotado{opacity:.55}
.linea-carrito{display:grid;grid-template-columns:1fr 70px 70px auto;gap:6px;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}
.linea-carrito .nom{font-size:13px} .linea-carrito input{padding:5px 7px}
.totales div{display:flex;justify-content:space-between;padding:3px 0} .totales .gran{font-size:18px;font-weight:600;border-top:1px solid var(--border);margin-top:6px;padding-top:8px}
.resultados{background:var(--bg3);border:1px solid var(--border2);border-radius:8px;margin-top:4px;max-height:200px;overflow-y:auto}
.resultados button{display:block;width:100%;text-align:left;background:none;border:none;padding:8px 10px;cursor:pointer;border-bottom:1px solid var(--border)} .resultados button:hover{background:var(--bg4)}

/* ---- modal / toast ---- */
.modal-fondo{position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:100;display:flex;align-items:flex-start;justify-content:center;padding:4vh 14px;overflow-y:auto}
.modal{background:var(--bg2);border:1px solid var(--border2);border-radius:var(--radius2);width:100%;max-width:560px}
.modal.ancho{max-width:860px} .modal-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.modal-head h3{font-size:15px} .modal-body{padding:18px} .modal-pie{padding:12px 18px;border-top:1px solid var(--border);display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
#toasts{position:fixed;bottom:18px;right:18px;z-index:200;display:flex;flex-direction:column;gap:8px;max-width:360px}
.toast{background:var(--bg4);border:1px solid var(--border2);border-left:3px solid var(--acc);padding:10px 14px;border-radius:8px;box-shadow:0 6px 24px rgba(0,0,0,.4)}
.toast.ok{border-left-color:var(--green)} .toast.mal{border-left-color:var(--red)}
.cargando{padding:40px;text-align:center;color:var(--txt3)}
.paginacion{display:flex;justify-content:center;align-items:center;gap:10px;padding:12px}