:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
}

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

.navbar {
    background-color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    color: white !important;
    font-weight: 600;
}

.product-card {
    transition: all 0.3s ease;
    margin-bottom: 30px;
    border: none;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    background: white;
}

    .product-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 15px rgba(0,0,0,0.2);
    }

.product-image {
    height: 250px;
    object-fit: contain;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 15px 15px 0 0;
}

.product-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 15px 0;
    color: var(--primary-color);
}

.product-code {
    color: #666;
    font-size: 0.9rem;
    background: #f8f9fa;
    padding: 5px 10px;
    border-radius: 5px;
    display: inline-block;
}

.product-specs {
    font-size: 0.9rem;
    color: #555;
}

    .product-specs i {
        color: var(--secondary-color);
        width: 20px;
    }

.social-share a {
    color: #666;
    margin-right: 10px;
    transition: color 0.3s ease;
}

    .social-share a:hover {
        color: var(--secondary-color);
    }

.btn-details {
    background-color: var(--secondary-color);
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

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

.modal-content {
    border-radius: 15px;
}

.modal-header {
    background-color: var(--primary-color);
    color: white;
    border-radius: 15px 15px 0 0;
}

.btn-close {
    filter: brightness(0) invert(1);
}

.specs-table th {
    background-color: #f8f9fa;
}

.category-filter {
    margin-bottom: 30px;
}

.category-btn {
    margin: 5px;
    border-radius: 20px;
    padding: 8px 20px;
    transition: all 0.3s ease;
}

    .category-btn.active {
        background-color: var(--secondary-color);
        color: white;
    }

.product-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.btn-detail {
    flex: 1;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 5px;
    transition: all 0.3s ease;
}

    .btn-detail:hover {
        background-color: var(--secondary-color);
        transform: translateY(-2px);
    }

.header-section {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
}