@media screen and (max-width: 991.98px) {
    nav {
        text-align: center;
        z-index: 9999;
    }

    .nav-item {
        margin: 5px 0px;
    }

    .nav-link {
        padding: 0;
    }

    h1 {
        font-size: 2.6rem;
    }

    .contact form {
        margin-bottom: 30px;
    }
}

@media screen and (max-width: 767.98px) {
    .title {
        margin-bottom: 2rem;
    }
    
    .title h2 {
        font-size: 2rem;
    }
    
    h1 {
        font-size: 2rem;
        width: 100%;
    }

    .intro {
        padding: 70px 0px;
    }

    .intro h2 {
        font-size: 1.4rem;
    }

    .method {
        padding: 70px 0px 54px 0px;
    }
    
    .process {
        70px 0px 40px 0px;
    }
    
    .process .item h3 {
        font-size: 1.5rem;
    }
    
    .offer {
        padding: 70px 0px 30px 0px;
    }
    
    .offer .single-item h4 {
        font-size: 1.4rem;
        text-align: center;
        margin-bottom: 30px;
    }
    
    .offer .single-item h4::before {
        left: 50%;
        transform: translateX(-50%);
        width: 80px;
    }
    
    .cooperation {
        padding: 70px 0px 70px 0px;
    }
    
    .personal {
        padding: 70px 0px 40px 0px;
    }
    
    .contact {
        padding: 70px 0px 70px 0px;
    }
    
    .contact button {
        margin-right: auto;
    }
    
    footer {
        text-align: center;
    }
    
    footer .row {
        flex-direction: column-reverse;
    }
    
    footer p {
        padding: 5px 0px 20px 0px;
    }
    
    footer ul {
        padding: 20px 0px 0px 0px;
        text-align: center;
    }
    
    footer ul li {
        margin: 0px 5px;
    }
}