/* Portfolio Page Styles */
.portfolio-main {
    padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 20) 0;
}

.page-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 16);
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.7;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.portfolio-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: calc(var(--spacing-unit) * 8);
    margin-bottom: calc(var(--spacing-unit) * 20);
    padding: calc(var(--spacing-unit) * 12) 0;
    background: var(--card-background);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.stat {
    text-align: center;
    padding: calc(var(--spacing-unit) * 4);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    opacity: 0.8;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 4);
    margin-bottom: calc(var(--spacing-unit) * 16);
}

.filter-btn {
    background: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--text-color);
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 6);
    border-radius: calc(var(--border-radius) * 0.7);
    font-family: var(--font-family);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.filter-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 8);
    margin-bottom: calc(var(--spacing-unit) * 20);
}

.portfolio-item {
    background: var(--card-background);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
    width: 100%;
    height: 250px;
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

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

.portfolio-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, 
        rgba(235, 26, 78, 0.1) 0%, 
        rgba(196, 196, 196, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.05);
}

.category-badge {
    position: absolute;
    top: calc(var(--spacing-unit) * 3);
    left: calc(var(--spacing-unit) * 3);
    background: var(--primary-color);
    color: white;
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 3);
    border-radius: calc(var(--border-radius) * 0.5);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    z-index: 2;
}

.portfolio-info {
    padding: calc(var(--spacing-unit) * 6);
}

.portfolio-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--text-color);
}

.portfolio-description {
    font-size: 0.95rem;
    color: var(--text-color);
    opacity: 0.7;
    line-height: 1.5;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.portfolio-features {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 2);
}

.feature-tag {
    background: var(--background-color);
    color: var(--text-color);
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 3);
    border-radius: calc(var(--border-radius) * 0.4);
    font-size: 0.8rem;
    font-weight: 500;
    opacity: 0.8;
}

.portfolio-cta {
    text-align: center;
    background: var(--card-background);
    padding: calc(var(--spacing-unit) * 16);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
}

.portfolio-cta h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 4);
    color: var(--text-color);
}

.portfolio-cta p {
    font-size: 1.1rem;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: calc(var(--spacing-unit) * 8);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing-unit) * 4);
    flex-wrap: wrap;
}

/* Featured Portfolio Items */
.portfolio-item.featured {
    grid-column: span 2;
}

.portfolio-item.featured .portfolio-image {
    height: 300px;
}

.portfolio-item.featured::after {
    content: '⭐ Featured';
    position: absolute;
    top: calc(var(--spacing-unit) * 3);
    right: calc(var(--spacing-unit) * 3);
    background: #ffd700;
    color: #333;
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 3);
    border-radius: calc(var(--border-radius) * 0.5);
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 2;
}

/* Animation for portfolio items */
.portfolio-item {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
    transform: translateY(30px);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Staggered animation delay */
.portfolio-item:nth-child(1) { animation-delay: 0.1s; }
.portfolio-item:nth-child(2) { animation-delay: 0.2s; }
.portfolio-item:nth-child(3) { animation-delay: 0.3s; }
.portfolio-item:nth-child(4) { animation-delay: 0.4s; }
.portfolio-item:nth-child(5) { animation-delay: 0.5s; }
.portfolio-item:nth-child(6) { animation-delay: 0.6s; }

/* Responsive Design */
@media (max-width: 968px) {
    .portfolio-item.featured {
        grid-column: span 1;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: calc(var(--spacing-unit) * 6);
    }
    
    .portfolio-stats {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: calc(var(--spacing-unit) * 4);
        padding: calc(var(--spacing-unit) * 8) 0;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .portfolio-filters {
        gap: calc(var(--spacing-unit) * 3);
    }
    
    .filter-btn {
        padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
        font-size: 0.9rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .portfolio-cta h2 {
        font-size: 1.8rem;
    }
    
    .portfolio-cta {
        padding: calc(var(--spacing-unit) * 12);
    }
}

@media (max-width: 480px) {
    .portfolio-main {
        padding: calc(var(--spacing-unit) * 4) 0 calc(var(--spacing-unit) * 16) 0;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .portfolio-filters {
        flex-direction: column;
        align-items: center;
    }
    
    .portfolio-cta {
        padding: calc(var(--spacing-unit) * 8);
    }
    
    .portfolio-cta h2 {
        font-size: 1.5rem;
    }
}