@media (max-width: 991px) {
    .main-menu {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .about-left {
        margin-bottom: 50px;
    }

}

@media (max-width: 767px) {
    .container {
        max-width: 400px;
    }

    .section-heading h2 {
        font-size: 36px;
    }

    .single-hero-content h2 {
        font-size: 36px;
    }

    .single-hero-content p {
        font-size: 16px;
        padding: 0 15px;
    }

    .about-left h2 {
        font-size: 36px;
    }

    .portfolio-filter-list li {
        margin-bottom: 15px;
    }

    .call-to-action-text {
        text-align: center;
        margin-bottom: 30px;
    }

    .call-to-action-btn {
        text-align: center;
    }

    .contact-address {
        padding-left: 0;
    }

    .copyright {
        text-align: center;
        margin-bottom: 30px;
    }

    .footer-social {
        text-align: center;
    }
}

@media (max-width: 600px) {
    .single-hero-content h2 {
        font-size: 32px;
    }

    .single-hero-content p {
        font-size: 14px;
    }
}