@media (min-width: 450px) and (max-width: 800px) {
    
    .menu-opener {
        margin-right: 45px;
        display: block;
        width: 35px;
    }
    .menu {
        display: none;
        position: absolute;
        background-color: rgba(0,0,0,0.8);
        width: 70vw;
        z-index: 99;
        height: calc(100vh - 100px);
        top: 100px;
        right: 0;
    }

    .menu ul {
        flex-direction: column;
    }

    .menu li a {
        font-weight: bold;
        font-size: 30px;
        height: 55px;
        border: 0;
    }

    .menu li.active a, .menu li a:hover {
        border: 0;
        color: var(--primary-color);
    }

    .section-aboutUs {
        flex-direction: column;
    }

    .section-aboutUs-left {
        margin: 0 30px 30px;
    }

    .section-aboutUs-right {
        width: auto;
        margin: 0 30px 30px;
    }

    .section-services {
        flex-wrap: wrap;
    }

    .section-services .service, .section-services .service:last-child  {
        border: none;
    }

    .section-services .service:nth-child(even) {
        border-left: 1px solid #ddd;
    }

    .section-services .service {
        min-width: 50%;
        align-self: center;
        margin-bottom: 20px;
        
    }

    .section-happy-clients {
        padding: 20px;
    }
    
    .section-tell-about-us {
        flex-wrap: wrap;
    }
}


@media (max-width: 450px) {
    
    .menu-opener {
        margin-right: 45px;
        display: block;
        width: 35px;
    }
    .menu {
        display: none;
        position: absolute;
        background-color: rgba(0,0,0,0.8);
        width: 70vw;
        z-index: 99;
        height: calc(100vh - 100px);
        top: 100px;
        right: 0;
    }

    .menu ul {
        flex-direction: column;
    }

    .menu li a {
        font-weight: bold;
        font-size: 9px;
        height: 50px;
        border: 0;
    }

    .menu li.active a, .menu li a:hover {
        border: 0;
        color: var(--primary-color);
    }

    .banner h1 {
        font-size: 30px;
    }

    .banner h2 {
        font-size: 18px;
    }

    .section-aboutUs {
        flex-direction: column;
    }

    .section-aboutUs-left {
        margin: 0 30px 30px;
    }

    .section-aboutUs-right {
        width: auto;
        margin: 0 30px 30px;
    }

    .section-services {
        flex-wrap: wrap;
    }

    .section-services .service, .section-services .service:last-child  {
        border: none;
    }

    .section-services .service:nth-child(even) {
        border-left: 1px solid none;
    }

    .section-services .service {
        min-width: 100%;
        align-self: center;
        margin-bottom: 20px;
        
    }

    .section-happy-clients {
        padding: 20px;
    }  
    
    .section-tell-about-us {
        flex-wrap: wrap;
    }
}