/* ==========================================================================
   CONFIGURACIÓN GENERAL Y PALETA DE COLORES
   ========================================================================== */
:root {
    --bg-main: #121214;          
    --bg-panel: #1a1a1e;        
    --bg-input: #26262b;        
    --text-primary: #f5f5f7;    
    --text-muted: #a1a1aa;      
    --accent-blue: #0071e3;     
    --accent-green: #30d158;    
    --accent-orange: #ff9f0a;   
    --accent-red: #ff453a;      
    --border-color: #2c2c32;    
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-stack);
    background-color: var(--bg-main);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden; /* Evitar scroll horizontal */
}

/* ==========================================================================
   INTERFAZ PRINCIPAL (RESPONSIVA)
   ========================================================================== */
.pos-container {
    display: flex; /* Cambiado a flex para control responsivo */
    flex-wrap: wrap; /* Permitir que los elementos se envuelvan */
    width: 100%;
}

.panel-izquierdo,
.panel-derecho {
    flex: 1 1 100%; /* Por defecto, ocupar el 100% del ancho */
    padding: 10px; /* Reducir padding en móvil */
}

@media (min-width: 768px) {
    .panel-izquierdo {
        flex: 1 1 65%; /* Ocupar el 65% en pantallas más grandes */
    }
    .panel-derecho {
        flex: 1 1 35%; /* Ocupar el 35% en pantallas más grandes */
    }
}

/* ==========================================================================
   PANEL IZQUIERDO: Control Global, Filtros y Catálogo
   ========================================================================== */
.pos-header {
    margin-bottom: 10px;
}

.controles-globales {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

#buscar-carrito-input {
    flex-grow: 1;
}

#btn-nuevo-carrito {
    flex-shrink: 0;
}

input[type="text"] {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: var(--font-stack);
    outline: none;
    transition: border-color 0.2s;
}

input[type="text"]:focus {
    border-color: var(--accent-blue);
}

.carritos-grid,
.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); /* Cuadrícula adaptable */
    gap: 10px;
    margin-bottom: 20px;
}

.carrito-remoto-card,
.producto-card {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
    transition: transform 0.1s, border-color 0.15s;
}

.carrito-remoto-card:hover,
.producto-card:hover {
    border-color: var(--accent-blue);
}

.carrito-remoto-card.activo {
    background-color: rgba(0, 113, 227, 0.1);
    border-color: var(--accent-blue);
}

.producto-card .nombre {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 4px;
}

.producto-card .precio {
    font-size: 1.1rem;
    font-weight: 700;
}

.producto-card .stock {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ==========================================================================
   PANEL DERECHO: Cesto de Compras Activo
   ========================================================================== */
.carrito-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.badge-status {
    font-size: 0.7rem;
    padding: 3px 6px;
    border-radius: 15px;
    background-color: var(--bg-input);
    color: var(--accent-orange);
    border: 1px solid var(--border-color);
}

.referencia-area input {
    width: 100%;
}

.carrito-body {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 15px;
    min-height: 100px;
}

.carrito-vacio {
    text-align: center;
    color: var(--text-muted);
    padding: 20px;
    font-style: italic;
}

.item-linea {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.item-linea .detalles {
    flex-grow: 1;
    margin-right: 10px;
}

.item-linea .controles-cant {
    display: flex;
    gap: 5px;
}

.item-linea strong {
    font-size: 0.95rem;
}

.item-linea small {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Botones y Acciones */
button {
    font-family: var(--font-stack);
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    border-radius: 6px;
    padding: 10px;
    cursor: pointer;
    transition: opacity 0.1s;
}

button:hover {
    opacity: 0.9;
}

.btn-primario { background-color: var(--accent-blue); color: #fff; }
.btn-secundario { background-color: var(--bg-input); color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-advertencia { background-color: var(--accent-orange); color: #000; font-weight: 600; }
.btn-peligro { background-color: var(--accent-red); color: #fff; }

/* Pie del Carrito */
.total-linea {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.total-linea strong {
    font-size: 1.3rem;
}

.acciones-grid {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

#btn-vaciar, #btn-guardar-global {
    flex: 1;
}

#btn-pagar {
    display: block;
    width: 100%;
    background-color: var(--accent-green);
    color: #000;
    font-weight: 700;
    font-size: 1.05rem;
    padding: 14px;
}