/* Portfolio Page Styles */

/* Portfolio Main */
.portfolio-main {
    padding-top: 80px;
    background: #ffffff;
    min-height: 100vh;
}

/* Portfolio Categories */
.portfolio-categories {
    padding: 40px 0 20px;
    background: #ffffff;
    border-bottom: 1px solid #e0e0e0;
}

.category-tabs {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.category-tab {
    padding: 12px 30px;
    background: transparent;
    border: none;
    color: #999;
    font-size: 16px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    border-bottom: 2px solid transparent;
}

.category-tab:hover {
    color: #333;
}

.category-tab.active {
    color: #333;
    font-weight: 500;
    border-bottom-color: #333;
}

/* Portfolio Header */
.portfolio-header {
    padding: 60px 0 40px;
    text-align: left;
}

.portfolio-title {
    font-size: 48px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.portfolio-subtitle {
    font-size: 16px;
    color: #666;
    font-weight: 300;
    line-height: 1.6;
}

/* Portfolio Grid Section */
.portfolio-grid-section {
    padding: 40px 0 80px;
}

.portfolio-category {
    display: none;
}

.portfolio-category.active {
    display: block;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

/* Portfolio Card */
.portfolio-card {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    background: #f5f5f5;
    cursor: pointer;
}

.portfolio-img {
    position: relative;
    width: 100%;
    padding-bottom: 75%; /* 4:3 Aspect Ratio */
    overflow: hidden;
    min-height: 300px;
}

.portfolio-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

/* Portfolio Overlay */
.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, transparent 100%);
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-overlay h3 {
    color: white;
    font-size: 16px;
    font-weight: 500;
    margin: 0;
}

/* Hover Effects */
.portfolio-card:hover .portfolio-img img {
    transform: scale(1.05);
}

.portfolio-card:hover .portfolio-overlay {
    opacity: 1;
}

/* Selected State (like hover) */
.portfolio-card.selected .portfolio-overlay {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .portfolio-categories {
        padding: 30px 0 15px;
    }
    
    .category-tabs {
        gap: 10px;
    }
    
    .category-tab {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .portfolio-header {
        padding: 40px 20px 30px;
    }
    
    .portfolio-title {
        font-size: 32px;
    }
    
    .portfolio-subtitle {
        font-size: 14px;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .portfolio-img {
        min-height: 200px;
    }
}

@media (max-width: 480px) {
    .category-tabs {
        gap: 5px;
    }
    
    .category-tab {
        padding: 8px 15px;
        font-size: 13px;
    }
    
    .portfolio-title {
        font-size: 28px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .portfolio-img {
        min-height: 250px;
    }
}