/* Responsive Styles */
@media screen and (max-width: 1200px) {
    .hero-grid,
    .about-grid,
    .research-grid,
    .experience-grid,
    .publications-grid,
    .contact-grid {
        padding: 0 2rem;
    }
}

@media screen and (max-width: 1024px) {
    .hero h1 {
        font-size: 3rem;
    }

    .research-grid,
    .experience-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .profile-container {
        width: 350px;
        height: 350px;
    }
}

@media screen and (max-width: 768px) {
    .burger {
        display: block;
        cursor: pointer;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        padding: 2rem;
        transition: 0.3s;
        box-shadow: 0 10px 20px rgba