/* Estilos básicos para la tienda CVA - Diseño mejorado */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #3a86ff;
    --color-primary-dark: #2667cc;
    --color-secondary: #ff006e;
    --color-success: #38b000;
    --color-warning: #ffbe0b;
    --color-danger: #ff5252;
    --color-dark: #1a1a2e;
    --color-light: #ffffff;
    --color-gray: #f8f9fa;
    --color-gray-dark: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-light);
    padding: 20px 0;
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
    position: relative;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-light);
}

.header-logo img {
    height: 40px;
    margin-right: 10px;
}

.header-title {
    display: flex;
    flex-direction: column;
}

.header h1 {
    font-size: 1.8em;
    font-weight: 600;
    margin: 0;
}

.header p {
    font-size: 0.9em;
    opacity: 0.9;
    margin: 0;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-actions a {
    color: var(--color-light);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9em;
}

.header-actions .admin-link {
    background-color: rgba(255, 255, 255, 0.2);
}

.header-actions .admin-link:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

/* Información de API */
.api-info {
    background: var(--color-gray);
    border-left: 4px solid var(--color-success);
    border-radius: var(--border-radius);
    padding: 15px 20px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--box-shadow);
}

.api-info.error {
    background: #fff5f5;
    border-left-color: var(--color-danger);
    color: var(--color-danger);
    margin-top: 10px;
    font-weight: 500;
    border-width: 4px;
    box-shadow: 0 4px 8px rgba(255, 82, 82, 0.15);
    white-space: nowrap;
}

.api-info.success {
    color: var(--color-success);
}

.api-info strong {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* Filtros */
.filtros {
    background: var(--color-light);
    padding: 25px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--box-shadow);
}

.filtros h3 {
    margin-bottom: 20px;
    color: var(--color-dark);
    font-size: 1.2em;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filtros form {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: center;
}

.filtros input, .filtros select {
    padding: 12px 15px;
    border: 1px solid #e1e1e1;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
    background-color: var(--color-gray);
    flex: 1;
    min-width: 180px;
    max-width: 100%;
    position: relative;
}

.filtros select {
    appearance: menulist;
    overflow: visible;
    z-index: 1;
    max-height: 300px;
}

.filtros select option {
    padding: 8px;
    font-size: 14px;
    background-color: white;
}

@media (max-width: 768px) {
    .filtros form {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filtros input, .filtros select {
        width: 100%;
    }
}

.filtros input:focus, .filtros select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.2);
}

.filtros button {
    background: var(--color-primary);
    color: var(--color-light);
    border: none;
    padding: 12px 25px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    min-width: 120px;
}

.filtros button:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
}

.filtros .limpiar-filtros {
    color: var(--color-danger);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    transition: var(--transition);
}

.filtros .limpiar-filtros:hover {
    color: #d32f2f;
    text-decoration: underline;
}

/* Grid de productos */
.productos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

/* Tarjeta de producto */
.producto-card {
    background: var(--color-light);
    border-radius: var(--border-radius);
    padding: 15px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0,0,0,0.05);
}

.producto-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.producto-imagen {
    width: 100%;
    height: 180px;
    object-fit: contain;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    background: var(--color-gray);
    padding: 10px;
    transition: var(--transition);
}

.producto-card:hover .producto-imagen {
    transform: scale(1.05);
}

.producto-marca {
    color: var(--color-gray-dark);
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.producto-info {
    padding: 15px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.producto-clave {
    color: var(--color-primary);
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.producto-descripcion {
    color: var(--color-dark);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 40px;
}

.producto-precio {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-success);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.producto-precio.dolares {
    color: var(--color-secondary);
}

.producto-promocion {
    background: linear-gradient(45deg, var(--color-secondary), #ff4081);
    color: white;
    padding: 5px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 8px;
    display: inline-block;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1;
}

.producto-stock {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    margin-bottom: 12px;
}

.stock-disponible {
    color: var(--color-success);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.stock-disponible:before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--color-success);
    border-radius: 50%;
}

.stock-agotado {
    color: var(--color-danger);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.stock-agotado:before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--color-danger);
    border-radius: 50%;
}

.stock-bajo:before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--color-warning);
    border-radius: 50%;
}

.stock-detalle {
    color: var(--color-gray-dark);
    font-size: 11px;
}

.producto-grupo {
    background: var(--color-gray);
    color: var(--color-dark);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    display: inline-block;
    margin-top: auto;
    margin-bottom: 10px;
    font-weight: 500;
}

.producto-acciones {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.btn-agregar-carrito {
    background-color: var(--color-primary);
    color: var(--color-light);
    border: none;
    border-radius: var(--border-radius);
    padding: 8px 15px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
    width: 100%;
    justify-content: center;
}

.btn-agregar-carrito:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
}

.btn-detalles {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 12px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.btn-detalles:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Paginación */
.paginacion {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.paginacion a, .paginacion span {
    padding: 10px 16px;
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-primary);
    font-weight: 500;
    transition: var(--transition);
    min-width: 42px;
    text-align: center;
    font-size: 14px;
}

.paginacion a:hover {
    background: var(--color-primary);
    color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: 0 3px 5px rgba(0,0,0,0.1);
}

.paginacion .actual {
    background: var(--color-primary);
    color: var(--color-light);
    font-weight: 600;
}

.paginacion .prev, .paginacion .next {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    font-size: 18px;
    color: #7f8c8d;
}

.loading::after {
    content: '...';
    animation: dots 1.5s steps(5, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60% { content: '...'; }
    80%, 100% { content: ''; }
}

/* Error */
.error {
    background: #ffebee;
    color: #c62828;
    padding: 20px;
    border-radius: 8px;
    border: 1px solid #f44336;
    text-align: center;
    margin: 20px 0;
}

/* Sin resultados */
.sin-resultados {
    text-align: center;
    padding: 60px 20px;
    color: #7f8c8d;
}

.sin-resultados h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .productos-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 15px;
    }
    
    .filtros form {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filtros input, .filtros select, .filtros button {
        width: 100%;
    }
    
    .header h1 {
        font-size: 2em;
    }
}

@media (max-width: 480px) {
    .productos-grid {
        grid-template-columns: 1fr;
    }
    
    .producto-card {
        padding: 15px;
    }
}