.portfolio-hero {
    padding: 160px 0 60px;
    text-align: center;
}

.portfolio-categories {
    padding: 40px 0;
    background: #fafafa;
    position: sticky;
    top: 70px;
    z-index: 100;
}

.categories-nav {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.category-link {
    padding: 12px 24px;
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    background: white;
}

.category-link:hover,
.category-link.active {
    background: linear-gradient(135deg, var(--peach), var(--pink), var(--purple));
    color: white;
    transform: translateY(-2px);
}

.portfolio-grid-section {
    padding: 80px 0 120px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: 40px;
}

.portfolio-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s ease;
}

.portfolio-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.portfolio-info {
    padding: 30px;
}

.portfolio-info h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.portfolio-category {
    color: var(--text-gray);
    font-size: 14px;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-stats {
    display: flex;
    gap: 20px;
    font-size: 14px;
    font-weight: 600;
}

.portfolio-stats span {
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(255, 181, 194, 0.1), rgba(245, 163, 208, 0.1));
    border-radius: 20px;
    color: var(--text-dark);
}

.case-study-section {
    padding: 80px 0;
    background: #fafafa;
}

.case-study-content {
    max-width: 900px;
    margin: 0 auto;
}

.case-study-header {
    text-align: center;
    margin-bottom: 60px;
}

.case-study-header h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
}

.case-study-meta {
    display: flex;
    gap: 30px;
    justify-content: center;
    color: var(--text-gray);
    font-size: 16px;
}

.case-study-body {
    background: white;
    padding: 60px;
    border-radius: 24px;
    box-shadow: var(--shadow);
}

.case-study-body h3 {
    font-size: 28px;
    font-weight: 700;
    margin: 40px 0 20px;
    color: var(--text-dark);
}

.case-study-body h3:first-child {
    margin-top: 0;
}

.case-study-body p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 20px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.metric-item {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, rgba(255, 181, 194, 0.05), rgba(245, 163, 208, 0.05));
    border-radius: 16px;
}

.metric-value {
    font-size: 48px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--peach), var(--pink), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.metric-label {
    font-size: 16px;
    color: var(--text-gray);
    font-weight: 600;
}

@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .case-study-body {
        padding: 50px 40px;
    }
}

@media (max-width: 768px) {
    .portfolio-hero {
        padding: 120px 0 50px;
    }
    
    .portfolio-categories {
        padding: 30px 0;
        top: 60px;
    }
    
    .categories-nav {
        gap: 15px;
        padding: 0 20px;
    }
    
    .category-link {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .portfolio-grid-section {
        padding: 60px 0 80px;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .portfolio-info {
        padding: 25px;
    }
    
    .portfolio-info h3 {
        font-size: 20px;
    }
    
    .portfolio-category {
        font-size: 13px;
    }
    
    .portfolio-stats {
        font-size: 13px;
        gap: 15px;
    }
    
    .portfolio-stats span {
        padding: 6px 14px;
    }
    
    .case-study-section {
        padding: 60px 0;
    }
    
    .case-study-header {
        margin-bottom: 40px;
    }
    
    .case-study-header h2 {
        font-size: 36px;
        margin-bottom: 15px;
    }
    
    .case-study-meta {
        flex-direction: column;
        gap: 15px;
        font-size: 15px;
    }
    
    .case-study-body {
        padding: 40px 30px;
        border-radius: 20px;
    }
    
    .case-study-body h3 {
        font-size: 24px;
        margin: 30px 0 15px;
    }
    
    .case-study-body p {
        font-size: 16px;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin: 30px 0;
    }
    
    .metric-item {
        padding: 25px;
    }
    
    .metric-value {
        font-size: 40px;
    }
    
    .metric-label {
        font-size: 15px;
    }
}

@media (max-width: 480px) {
    .portfolio-hero {
        padding: 100px 0 40px;
    }
    
    .categories-nav {
        gap: 10px;
    }
    
    .category-link {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .portfolio-info {
        padding: 20px;
    }
    
    .portfolio-info h3 {
        font-size: 18px;
    }
    
    .case-study-header h2 {
        font-size: 32px;
    }
    
    .case-study-body {
        padding: 30px 20px;
    }
    
    .case-study-body h3 {
        font-size: 22px;
    }
    
    .case-study-body p {
        font-size: 15px;
    }
    
    .metric-value {
        font-size: 36px;
    }
}