:root {
  --vino: #6B2237;
  --vino-oscuro: #4A1726;
  --vino-claro: #8B3B52;
  --oro: #C9A24B;
  --oro-claro: #E8D5A3;
  --crema: #FAF5F0;
  --blanco: #FFFFFF;
  --gris-texto: #4A4048;
  --gris-suave: #8A7F85;
  --linea: #EDE2DC;
  --verde-ok: #3F7A5A;
  --rojo-alerta: #B8433A;
  --sombra: 0 2px 12px rgba(74, 23, 38, 0.08);
  --radio: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--crema);
  color: var(--gris-texto);
  -webkit-tap-highlight-color: transparent;
}

.topbar {
  background: var(--vino);
  color: var(--blanco);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--sombra);
}
.topbar h1 { font-size: 17px; margin: 0; font-weight: 700; letter-spacing: 0.2px; }
.topbar .sub { font-size: 11px; opacity: 0.75; margin-top: 2px; }
.topbar .estado { display: flex; align-items: center; gap: 6px; font-size: 12px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--verde-ok); }
.dot.offline { background: var(--rojo-alerta); animation: pulse 1.4s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 14px;
  transition: transform 0.08s ease, opacity 0.15s ease;
}
button:active { transform: scale(0.97); }
.btn-primario { background: var(--vino); color: var(--blanco); }
.btn-primario:hover { background: var(--vino-oscuro); }
.btn-oro { background: var(--oro); color: var(--vino-oscuro); }
.btn-outline { background: transparent; border: 1.5px solid var(--vino); color: var(--vino); }
.btn-texto { background: transparent; color: var(--vino); padding: 6px 10px; }
.btn-peligro { background: var(--rojo-alerta); color: var(--blanco); }
button:disabled { opacity: 0.4; cursor: not-allowed; }

input, select, textarea {
  font-family: inherit;
  font-size: 15px;
  padding: 11px 14px;
  border: 1.5px solid var(--linea);
  border-radius: 10px;
  background: var(--blanco);
  color: var(--gris-texto);
  width: 100%;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--vino-claro); }
label { font-size: 12px; font-weight: 600; color: var(--gris-suave); text-transform: uppercase; letter-spacing: 0.4px; margin-bottom: 4px; display: block; }

.card {
  background: var(--blanco);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 18px;
}

.contenedor { max-width: 1200px; margin: 0 auto; padding: 16px; }

/* Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--vino) 0%, var(--vino-oscuro) 100%);
  padding: 20px;
}
.login-card {
  background: var(--blanco);
  border-radius: 20px;
  padding: 36px 30px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}
.login-card h1 { color: var(--vino); text-align: center; margin: 0 0 4px; font-size: 22px; }
.login-card .tagline { text-align: center; color: var(--gris-suave); font-size: 13px; margin-bottom: 24px; }
.login-card .campo { margin-bottom: 14px; }
.login-card button { width: 100%; margin-top: 6px; padding: 13px; font-size: 15px; }
.error-msg { color: var(--rojo-alerta); font-size: 13px; text-align: center; margin-top: 10px; min-height: 18px; }

/* POS Grid (empleado) */
.pos-layout { display: grid; grid-template-columns: 1fr 340px; gap: 16px; padding: 16px; max-width: 1400px; margin: 0 auto; }
@media (max-width: 860px) { .pos-layout { grid-template-columns: 1fr; } }

.buscador { margin-bottom: 14px; }
.categorias-tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 10px; margin-bottom: 4px; }
.tab-cat {
  white-space: nowrap; padding: 8px 16px; border-radius: 20px;
  background: var(--blanco); color: var(--vino); font-size: 13px; font-weight: 600;
  border: 1.5px solid var(--linea);
}
.tab-cat.activa { background: var(--vino); color: var(--blanco); border-color: var(--vino); }

.grid-productos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.prod-card {
  background: var(--blanco);
  border-radius: var(--radio);
  overflow: hidden;
  box-shadow: var(--sombra);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.1s ease;
}
.prod-card:active { transform: scale(0.96); }
.prod-card.sin-stock { opacity: 0.45; pointer-events: none; }
.prod-card .img-wrap { aspect-ratio: 1; background: var(--crema); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.prod-card .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.prod-card .placeholder-img { font-size: 28px; color: var(--oro-claro); }
.prod-card .info { padding: 8px 10px 10px; }
.prod-card .nombre { font-size: 12.5px; font-weight: 600; line-height: 1.25; margin-bottom: 4px; min-height: 30px; }
.prod-card .precio { font-size: 15px; font-weight: 800; color: var(--vino); }
.prod-card .badge-stock { position: absolute; top: 6px; right: 6px; background: var(--rojo-alerta); color: white; font-size: 9px; padding: 2px 6px; border-radius: 8px; font-weight: 700; }

/* Carrito */
.carrito { position: sticky; top: 78px; }
.carrito-items { max-height: 45vh; overflow-y: auto; margin: 12px 0; }
.carrito-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--linea); gap: 8px; }
.carrito-item .nombre { font-size: 13px; font-weight: 600; flex: 1; }
.carrito-item .cantidad-ctrl { display: flex; align-items: center; gap: 6px; }
.carrito-item .cantidad-ctrl button { width: 26px; height: 26px; padding: 0; font-size: 15px; background: var(--crema); color: var(--vino); }
.carrito-item .subtotal { font-size: 13px; font-weight: 700; color: var(--vino); min-width: 55px; text-align: right; }
.carrito-vacio { text-align: center; color: var(--gris-suave); padding: 30px 0; font-size: 13px; }

.metodos-pago { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 12px 0; }
.metodo-btn { padding: 12px 8px; border-radius: 10px; border: 1.5px solid var(--linea); background: var(--blanco); font-size: 12.5px; font-weight: 600; color: var(--gris-texto); text-align: center; }
.metodo-btn.activo { background: var(--vino); color: var(--blanco); border-color: var(--vino); }

.total-row { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; font-size: 20px; font-weight: 800; color: var(--vino); border-top: 2px solid var(--linea); margin-top: 8px; }

/* Admin dashboard */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat-card { background: var(--blanco); border-radius: var(--radio); padding: 16px 18px; box-shadow: var(--sombra); }
.stat-card .label { font-size: 11px; color: var(--gris-suave); text-transform: uppercase; font-weight: 700; letter-spacing: 0.4px; }
.stat-card .valor { font-size: 26px; font-weight: 800; color: var(--vino); margin-top: 4px; }
.stat-card.oro .valor { color: var(--oro); }

.tabs-periodo { display: flex; gap: 8px; margin-bottom: 16px; }
.tabs-periodo button { background: var(--blanco); color: var(--vino); border: 1.5px solid var(--linea); }
.tabs-periodo button.activo { background: var(--vino); color: var(--blanco); border-color: var(--vino); }

.tabla { width: 100%; border-collapse: collapse; font-size: 13px; }
.tabla th { text-align: left; padding: 10px 8px; color: var(--gris-suave); font-size: 11px; text-transform: uppercase; border-bottom: 2px solid var(--linea); }
.tabla td { padding: 10px 8px; border-bottom: 1px solid var(--linea); }
.tabla tr:last-child td { border-bottom: none; }

.venta-feed-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--linea); animation: entrada 0.4s ease; }
@keyframes entrada { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }
.venta-feed-item .info-venta { font-size: 13px; }
.venta-feed-item .monto { font-weight: 800; color: var(--verde-ok); font-size: 15px; }

.nav-admin { display: flex; gap: 6px; overflow-x: auto; padding: 12px 16px 0; }
.nav-admin button { background: var(--blanco); color: var(--vino); border: 1.5px solid var(--linea); white-space: nowrap; }
.nav-admin button.activo { background: var(--vino); color: var(--blanco); border-color: var(--vino); }

.vista { display: none; padding: 16px; max-width: 1200px; margin: 0 auto; }
.vista.activa { display: block; }
.pos-layout.vista.activa { display: grid; }

.badge-bajo-stock { background: #FDECEA; color: var(--rojo-alerta); font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 8px; }

/* Interruptor de permisos */
.fila-permiso { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--linea); }
.fila-permiso:last-child { border-bottom: none; }
.fila-permiso .nombre-empleado { font-size: 14px; font-weight: 600; }
.fila-permiso .sub-empleado { font-size: 11px; color: var(--gris-suave); }
.switch { position: relative; display: inline-block; width: 46px; height: 26px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider { position: absolute; cursor: pointer; inset: 0; background: #D8CDC5; border-radius: 26px; transition: 0.2s; }
.switch-slider::before { content: ""; position: absolute; height: 20px; width: 20px; left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: 0.2s; }
.switch input:checked + .switch-slider { background: var(--verde-ok); }
.switch input:checked + .switch-slider::before { transform: translateX(20px); }
.badge-offline { background: #FFF3CD; color: #856404; font-size: 10px; font-weight: 700; padding: 2px 6px; border-radius: 6px; margin-left: 6px; }

.fab-nuevo-prod { position: fixed; bottom: 20px; right: 20px; width: 56px; height: 56px; border-radius: 50%; font-size: 26px; box-shadow: 0 6px 20px rgba(74,23,38,0.35); display: flex; align-items: center; justify-content: center; padding: 0; z-index: 60; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: none; align-items: center; justify-content: center; z-index: 100; padding: 16px; }
.modal-overlay.activo { display: flex; }
.modal-box { background: var(--blanco); border-radius: var(--radio); padding: 24px; width: 100%; max-width: 420px; max-height: 90vh; overflow-y: auto; }
.modal-box h2 { margin-top: 0; color: var(--vino); font-size: 18px; }
.campo { margin-bottom: 12px; }
.fila-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--vino-oscuro); color: white; padding: 12px 20px; border-radius: 30px; font-size: 13px; font-weight: 600; z-index: 200; box-shadow: var(--sombra); opacity: 0; pointer-events: none; transition: opacity 0.25s, transform 0.25s; }
.toast.mostrar { opacity: 1; transform: translateX(-50%) translateY(-6px); }
.toast.exito { background: var(--verde-ok); }
.toast.error { background: var(--rojo-alerta); }

.empty-state { text-align: center; padding: 40px 20px; color: var(--gris-suave); }
.empty-state .icono { font-size: 40px; margin-bottom: 10px; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background: var(--linea); border-radius: 4px; }