/**
 * Estilos para Product File Upload
 * @package Product_File_Upload
 */

.pfu-upload-field {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.pfu-upload-field:hover {
    border-color: #dee2e6;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.pfu-upload-field h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #212529;
    font-size: 18px;
    font-weight: 600;
}

.pfu-description {
    color: #6c757d;
    font-size: 14px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.pfu-input-wrapper {
    margin-bottom: 10px;
}

.pfu-label {
    display: inline-block;
    cursor: pointer;
    width: 100%;
}

.pfu-button {
    display: inline-block;
    background: #0073aa;
    color: #fff;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    transition: background 0.3s ease;
    text-align: center;
    margin-right: 10px;
}

.pfu-button:hover {
    background: #005a87;
}

.pfu-file-input {
    opacity: 0;
    position: absolute;
    width: 0.1px;
    height: 0.1px;
    overflow: hidden;
    z-index: -1;
}

.pfu-filename {
    color: #6c757d;
    font-size: 14px;
    display: inline-block;
    vertical-align: middle;
    padding: 5px 0;
}

.pfu-filename.has-file {
    color: #28a745;
    font-weight: 500;
}

.pfu-filename.has-file:before {
    content: "✓ ";
    font-weight: bold;
}

.pfu-info {
    display: block;
    color: #6c757d;
    font-size: 13px;
    margin-top: 5px;
}

.pfu-error {
    color: #dc3545;
    font-size: 14px;
    margin-top: 10px;
    display: none;
    padding: 10px;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
}

.pfu-error.show {
    display: block;
}

/* Estilos para el carrito */
.woocommerce-cart-form__cart-item .pfu-file-link {
    color: #0073aa;
    text-decoration: none;
    font-weight: 500;
}

.woocommerce-cart-form__cart-item .pfu-file-link:hover {
    text-decoration: underline;
}

/* Estilos para el admin */
.pfu-admin-upload-info {
    margin-top: 10px;
    padding: 10px;
    background: #f0f0f1;
    border-left: 3px solid #0073aa;
}

.pfu-admin-upload-info strong {
    display: block;
    margin-bottom: 8px;
}

.pfu-admin-upload-info .button {
    margin-right: 5px;
}

/* Loading spinner */
.pfu-loading {
    display: none;
    margin-top: 10px;
}

.pfu-loading.show {
    display: block;
}

.pfu-spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #0073aa;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: pfu-spin 1s linear infinite;
    display: inline-block;
}

@keyframes pfu-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .pfu-upload-field {
        padding: 15px;
    }
    
    .pfu-button {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .pfu-label {
        display: block;
    }
    
    .pfu-filename {
        display: block;
        margin-top: 10px;
    }
}

/* Integración con temas populares */
.woocommerce .pfu-upload-field {
    clear: both;
}

/* Estilo para productos variables */
.variations_form .pfu-upload-field {
    margin-top: 20px;
}

/* Estilos para miniatura en el carrito */
.pfu-cart-preview {
    background: #f9f9f9;
    padding: 10px;
    border-radius: 4px;
    margin-top: 8px;
}

.pfu-cart-preview img {
    transition: transform 0.2s ease;
}

.pfu-cart-preview img:hover {
    transform: scale(1.05);
}

.pfu-cart-preview a {
    transition: color 0.2s ease;
}

.pfu-cart-preview a:hover {
    color: #005a87;
    text-decoration: underline;
}

/* Responsive para carrito */
@media (max-width: 480px) {
    .pfu-cart-preview {
        flex-direction: column !important;
        align-items: flex-start !important;
    }
    
    .pfu-cart-preview img {
        width: 80px !important;
        height: 80px !important;
        margin-bottom: 8px;
    }
}

/* Estilos para múltiples previsualizaciones */
.pfu-preview-container {
    margin-top: 15px;
}

.pfu-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.pfu-preview-item {
    position: relative;
    background: #fff;
    padding: 8px;
    border: 2px solid #ddd;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pfu-preview-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.pfu-preview-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 4px;
    display: block;
}

.pfu-cart-files {
    margin-top: 5px;
}

.pfu-cart-files .pfu-cart-preview {
    margin-bottom: 10px;
}

/* Responsive para previsualizaciones */
@media (max-width: 768px) {
    .pfu-preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
    }
    
    .pfu-preview-item img {
        height: 120px;
    }
}

@media (max-width: 480px) {
    .pfu-preview-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .pfu-preview-item {
        padding: 6px;
    }
    
    .pfu-preview-item img {
        height: 100px;
    }
}