/* Gallery Styles */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.project-gallery {
    padding: 3rem 0;
}

.project-gallery h3 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #333;
}

/* Category Filters */
.category-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1rem;
    border: 2px solid #ddd;
    background: white;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.project-thumbnail {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: #333;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
}

.difficulty-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

.difficulty-beginner {
    background: #d4edda;
    color: #155724;
}

.difficulty-intermediate {
    background: #fff3cd;
    color: #856404;
}

.difficulty-advanced {
    background: #f8d7da;
    color: #721c24;
}

.project-description {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.project-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.try-btn {
    background: #28a745;
    color: white;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.3s;
}

.try-btn:hover {
    background: #218838;
}

.has-product {
    display: flex;
    align-items: center;
    color: #ff6b35;
    font-size: 0.9rem;
    font-weight: bold;
}

.product-icon {
    margin-right: 0.5rem;
}

/* Footer */
.main-footer {
    background: #333;
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-top: 3rem;
}

/* Loading State */
.loading {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .project-actions {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    
    .try-btn {
        text-align: center;
    }
}