:root {
        --accent: rgba(255, 87, 34, 1);
        --dark-grey: #242424;
        --light-grey: rgb(242 242 242);
    }

    html,
    body {
        width: 100%;
        height: 100%;
        margin: unset;
        scroll-behavior: smooth;
    }

    header {
        width: 100%;
        background-color: rgb(241 241 241);
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    header h1 {
        margin: unset;
        padding-left: 1em;
    }

    img {
        width: 160px;
        height: 80px;
    }

    #logo-btn {
        padding: unset;
    }

    nav a {
        font-family: Arial, Helvetica, sans-serif;
        font-size: 1.5em;
        color: rgb(255 87 34);

        padding: 0.7em
    }

    nav {
        width: 100%;
    }

    @media(min-width: 992px) {
        .navbar .nav-item .dropdown-menu{ display: none; }
        .navbar .nav-item:hover .dropdown-menu{ display: block; }
        .navbar .nav-item .dropdown-menu{ margin-top:0; }
    }

    #go-top{
        right: 0;
        position: fixed;
        bottom: 0;
      }
      
      #go-top > button{
        display: none;
        border: unset;
        background-color: rgba(0, 0, 0, 0.7);
        margin: 0.5em;
      }
    
      #up-arrow{
        width: 30px;
        height: 30px;
      }

    .title-border {
        border-left: 10px solid var(--accent);
        padding-left: 0.5em;
    }

    .title-border > h1 {
        font-size: 2rem;
    }

    .subtitle-border {
        text-decoration: none;
        opacity: 0.6;
        font-weight: 400;
    }

    #contacts-wrap {
        display: flex;
        flex-direction: column;
        margin-bottom: 5em;
    }

    .contacts-img {
        width: 100%;
        height: auto;
    }

    .contacts-img>img {
        width: 100%;
        height: auto;
        filter: hue-rotate(35deg) saturate(1.5);
    }

    #contacts-info {
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        margin: 5em 20em;
    }

    .contact-element {
        display: flex;
        margin: 1em;
    }

    .contact-element>img {
        width: 50px;
        height: 50px;
    }

    .info-block {
        display: flex;
        flex-direction: column;
        font-weight: 600;
        margin-left: 1em;
        justify-content: center;
    }

    .map-block {
        width: auto;
        margin: 0em 20em;
    }

    footer {
        display: flex;
        flex-direction: row;
        justify-content: space-around;
        background-color: var(--dark-grey);
        flex-wrap: wrap;
    }

    footer>div {
        color: white;
        width: auto;
        margin: 3em 2em;
        min-width: 15em;
        max-height: 20em;
        overflow: hidden;
    }

    footer>div h5 {
        text-align: left;
    }

    footer>div img {
        width: 50px;
        height: 50px;
    }

    .service-ref {
        text-decoration: none;
        color: var(--accent);
    }

    .service-ref:hover {
        color: var(--accent);
    }

    #copyright {
        flex-basis: 100%;
        text-align: center;
        margin: unset;
        font-weight: 100;
        opacity: 0.6;
    }

    @media (max-width : 1200px){
        .title-border > h1{
            font-size:1.5rem;
        }

        .map-block{
            margin: unset;
        }

        #contacts-info{
            margin: 5em 2em;
        }
        footer {
            justify-content: space-around;
            padding: 1em;
        }
      
        footer>div {
        margin: 1em 1em;
        font-size: 0.8em;
        }
    
        footer>div img {
        width: 40px;
        height: 40px;
        }
    }