/* Portfolio Page - Minimal White Space Design */

.portfolio-filter {
    padding: 6rem 0 4rem 0;
    background: #ffffff;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 1rem 2rem;
    border: none;
    background: transparent;
    color: #64748b;
    font-size: 1rem;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #1e40af;
    transition: width 0.3s ease;
}

.filter-btn:hover {
    color: #1e40af;
}

.filter-btn:hover::after,
.filter-btn.active::after {
    width: 100%;
}

.filter-btn.active {
    color: #1e40af;
    font-weight: 500;
}

.portfolio-showcase {
    padding: 4rem 0 8rem 0;
    background: #ffffff;
}

.projects-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.project-item {
    display: flex;
    flex-direction: column;
    transition: all 0.4s ease;
}

.project-visual {
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 2rem;
    background: #f8fafc;
}

.project-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.project-content {
    text-align: left;
}

.project-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.project-content p {
    font-size: 1rem;
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.project-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: #f1f5f9;
    color: #475569;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Hover Effects */
.project-item:hover {
    transform: translateY(-8px);
}

.project-item:hover .project-content h3 {
    color: #1e40af;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .projects-showcase {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .portfolio-filter {
        padding: 4rem 0 3rem 0;
    }
    
    .filter-buttons {
        gap: 1.5rem;
    }
    
    .filter-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .portfolio-showcase {
        padding: 3rem 0 6rem 0;
    }
    
    .projects-showcase {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .project-visual {
        height: 250px;
        margin-bottom: 1.5rem;
    }
    
    .project-content h3 {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .portfolio-filter {
        padding: 3rem 0 2rem 0;
    }
    
    .filter-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .filter-btn {
        width: 200px;
        text-align: center;
    }
    
    .portfolio-showcase {
        padding: 2rem 0 4rem 0;
    }
    
    .projects-showcase {
        gap: 2.5rem;
    }
    
    .project-visual {
        height: 200px;
        margin-bottom: 1.25rem;
    }
    
    .project-content h3 {
        font-size: 1.125rem;
    }
    
    .project-content p {
        font-size: 0.9rem;
    }
}

/* Animation for filtered items */
.project-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.project-item.visible {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}