@media (max-width: 480px) {
    #portfolio-section {
        padding: 1.5rem;
    }
    
    .portfolio-title {
        font-size: 1.75rem;
    }
    
    .portfolio-description {
        font-size: 1rem;
        max-width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card {
        grid-column: span 1 !important;
    }
}

@media (min-width: 481px) and (max-width: 768px) {
    main {
        max-width: 700px;
        margin: 0 auto;
    }
    
    #portfolio-section {
        padding: 2rem 2.5rem;
    }
    
    .portfolio-title {
        font-size: 2rem;
    }
    
    .portfolio-description {
        max-width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .project-card {
        grid-column: span 1 !important;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    main {
        width: 100%;
        max-width: 700px;
        margin: 0 auto;
    }
    
    #portfolio-section {
        padding: 2rem 2.5rem;
    }
    
    .portfolio-title {
        font-size: 2.5rem;
    }
    
    .portfolio-description {
        max-width: 100%;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .project-card {
        grid-column: span 1;
    }
    
    .project-card:nth-child(4):last-child,
    .project-card:nth-child(4):nth-last-child(2),
    .project-card:nth-child(5):last-child {
        grid-column: span 1;
    }
    
    .project-card:last-child:nth-child(odd) {
        grid-column: span 2;
    }
}