* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
  }
body {
    font-family: 'Open Sans', sans-serif;
}
.doncity-view {
    background-image: url(./images/doncityweb.png);
    background-repeat: no-repeat;
    background-size: cover;
    margin: 0;
    width:  100%;
    height: 654px;
}

header {
    width: 100%;
    border-bottom: 1px solid white;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.contact {
    align-self: center;
}
.contact span {
    color: white;
    padding: 0 10px;
}
.navigation {
    overflow: hidden;
    align-self: center;
    margin-right: 20px;
}

.logo img {
    padding: 5px 30px;
}
.doncity-view nav ul, .scroll-header nav ul {
    list-style-type: none;
}

.doncity-view nav li, .scroll-header nav li {
    float: left;
}

/* Scroll-up*/
.scroll-btn {
    display: none;
    position: fixed;
    right: 0;
    bottom: 0;
    margin: 0 10px 10px 0;
    background-color: dodgerblue;
    color: white;
    border: 0;
    cursor: pointer;
}
.scroll-btn i {
    padding: 7px 10px;
    font-size: 20px;
}

.doncity-view nav li a,
.scroll-header nav li a{
    position: relative;
    display: block;
    margin: 10px 20px;
    padding-bottom: 5px;
    color: white;
    text-decoration: none;
    border-radius: 5px 5px 0 0;
}

.scroll-header nav li a::after,
.doncity-view nav li a::after {
    content: "";
    position: absolute;
    bottom: 0;
    width: 0;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    height: 2px;
    transition: width .4s;
}
.scroll-header nav li a:hover::after,
.doncity-view nav li a:hover::after {
    width: 100%;
}
.contact button, .scroll-contact button {
    display: none;
}
.contact button:hover,
.scroll-contact button:hover {
    opacity: 1;
}
/* .doncity-view nav li a:hover, 
.scroll-header nav li a:hover {
    background-color: white;
    color: black;
} */
/* Start Scroll header effect  */
.scroll-header {
    display: none;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 5px 30px;
    position: fixed;
    top: 0;
    color: white;
    width: 100%;
    height: 50px;
    background-color: #537ec5;
    box-shadow: 0 1px 2px 0 rgba(39, 42, 44, 0.3),0 2px 6px 2px rgba(38, 41, 43, 0.15);
}
.scroll-contact {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
}
.scroll-logo {
    display: inline;
}

/* End Scroll header effect  */
.highlight {
    background-color: #38353583;
    margin-top: 40px;
    margin-right: 20px;
    float:  right;
    width: 50%;
    line-height: 3em;
    padding: 30px;
    border-radius: 10px;
}
.highlight h1 {
    text-align: center;
    font-size: 50px;
    color: white;
    line-height: normal;
}
.highlight h1 strong {
    font-size: 130px;
    padding: 0;
}
mark {
    background-color: white;
}
.highlight p{
    text-align: center;
    font-size: 25px;
    color: white;
}
.highlight p mark {
    padding: 5px;
}

.section {
    background-repeat: no-repeat;
    background-position: center;
    background-attachment: fixed;
    background-size: cover;
}
.section > div {
    width: 50%;
    line-height: 1.8;
}
.section h2 {
    text-align: center;
    color: dodgerblue;
    font-weight: 300;
}
.section p {
    font-size: 20px;
    text-align: left;
    font-weight: 300;
}
.about-bg {
    background-image: url(./images/doncity-about-big.png);
}
.core-value {
    background-image: url(./images/doncity-value-bg.png);
}
.contact-doncity {
    background-image: url(./images/doncity-contact.png);
}

.about-div, .contact-div {
    padding: 50px 30px 50px 70px;
    /* animation: moveright 0.5s fadeInLeftBig; */
}
.core-value div {
    margin-left: 50%;
    padding: 50px 70px 70px 30px;
    /* animation: mymove 0.5s fadeInRightBig; */
}
/* @keyframes moveleft {
    from {left: 0px;}
    to {left: 70px;}
}
@keyframes moveleft {
    from {right: 0px;}
    to {right: 70px;}
} */
.core-value-div ul {
    font-size: 20px;
    list-style-type: none;
}
.core-value-div ul li {
    padding: 10px 0;
}
.core-value-div .fa-arrow-right {
    font-size: 12px;
    color: red;
}

#contact-form {
    border-radius: 10px;
    padding-bottom: 10px;
    background-color: #f1f1f183;
    border: 1px solid #f1f1f1;
}
#contact-form h2 {
    text-align: center;
    color: dodgerblue;
    padding-top: 10px;
}
#contact-form label, #contact-form input,
#contact-form textarea, #contact-form button {
    display: block;
    width: 90%;
    margin: 0 auto;
    border-radius: 5px;
    padding: 5px 10px;
}
#contact-form input,
#contact-form textarea {
    background: none;
    border: 1px solid dodgerblue;
}
#contact-form input, 
#contact-form textarea, 
#contact-form button {
    margin-bottom: 20px;
}
#contact-form input, 
#contact-form button {
    height: 40px;
}
#contact-form textarea {
    height: 100px;
}
#contact-form button {
    background-color: dodgerblue;
    color: white;
    border: 0;
    font-size: 16px;
    margin-bottom: 10px;
    cursor: pointer;
}
#contact-form button:hover {
    background-color: rgb(6, 118, 230);
}

.doncity-prefooter {
    background-color: #333;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    padding: 30px 70px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
}
.doncity-prefooter > div {
    width: 20%;
}
.doncity-prefooter h3 {
    padding-bottom: 10px;
    color: white;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.863);
}
.doncity-prefooter ul {
    list-style-type: none;
}
.doncity-prefooter li a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.5);
}
.doncity-prefooter li a:hover,
.fab:hover {
    text-decoration-color: white;
    color: rgba(255, 255, 255, 1);
}
.news-letter div{
    max-width: 248px;
    margin: 0 auto;
    border: 1px solid white;
    background-color: white;
    overflow: hidden;
}
.news-letter input, .news-letter button {
    height: 3em;
    border: none;
    padding: 0 2%;
}
.news-letter input {
    width: 67%;
    background: none;
}
.news-letter button {
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    cursor: pointer;
    width: 33%;
    font-weight: 300;
    float: right;
}
.news-letter button:hover {
    background-color: black;
}
.fab, .fas {
    font-size: 1.1em;
    padding: 0 5px;
    letter-spacing: 1.5px;
}

footer {
    background-color: black;
}
footer p {
    text-align: center;
    color: white;
    padding: 40px 0;
}
@media screen and (max-width: 801px) {
    header > div:not(:first-child) {
        width: 100%;
    }
    .logo {
        margin: 5px auto;
    }
    .logo img {
        padding: 5px 0 0 0;
    }
    .contact {
        display: flex;
        justify-content: space-between;
        width: 100%;
        padding: 5px;
        background-color: rgba(0, 0, 0, 0.397);
    }
    .contact button, .scroll-contact button {
        display: block;
        margin-top: 7px;
        margin-right: 10px;
        float: right;
        padding: 0 4px;
        color: #E5E4E2;
        font-size: 20px;
        background: none;
        border: 1px solid white;
        opacity: 0.7;
    }
    .contact span {
        font-size: 12px;
    }
    .doncity-view nav li,
    .scroll-navigation nav li {
		float: none;
    }
    .doncity-view nav li a, 
    .scroll-navigation nav li a {
        padding: 5px 50px;
        border-radius: 0;
    }
    .navigation {
        margin-right: 0;
    }
    .navigation li, .scroll-navigation li {
        display: none;
    }
    .navigation.responsive li, 
    .scroll-navigation.responsive li{
        display: block;
    }
    .doncity-view {
        background-position: center;
        background-size: cover;

    }

    /* Start Scroll header effect  */
    .scroll-header {
        padding: 0;
        height: auto;
        border-bottom: 2px solid white;
        background-color: #537ec5;
    }
    .scroll-header > div {
        width: 100%;
    }
    /* .scroll-logo {
        display: none;
    } */
    .scroll-logo img{
        position: relative;
        left: 50%;
        margin: 3px 0;
        margin-left: -63.5px;

    }
    .scroll-contact{
        font-size: 12px;
        font-weight: 150;
        padding: 5px 10px;
        background-color: #537ec5;
    }
    .scroll-contact span {
        padding-right: 10px;
    }
    /* End Scroll header effect  */
    .highlight {
        margin: 30px auto;
        float:  none;
        width: 90%;
        line-height: 2.5em;
        padding: 20px;
        border-radius: 10px;
    }
    .highlight h1 {
        font-size: 20px;
        color: white;
        line-height: normal;
        text-align: center;
    }
    .highlight h1 strong {
        font-size: 30px;
    }
    .highlight p{
        text-align: center;
        font-size: 16px;
        color: white;
    }
    .highlight p mark {
        padding: 5px;
    }

    .section {
        background-repeat: no-repeat;
        background-position: center;
        background-attachment: fixed;
        background-size: 100% 20%;
    }
    .core-value div {
        margin: 0;
        padding: 20px;
        border-left: 0;
    }

    .section > div {
        padding-top: 80px;
        width: 100%;
        line-height: 1.5;
    }
    .section h2 {
        text-align: left;
        font-size: 20px;
        color: dodgerblue;
    }
    .section p {
        text-align: left;
        font-size: 16px;
    }
    .about-bg {
        background-image: none;
    }
    .core-value {
        background-image: none;
    }
    .contact-doncity {
        background-image: none;
    }

    .about-div, .contact-div {
        padding: 20px;
        border-right: 0;
    }
    .core-value-div ul {
        font-size: 16px;
        list-style-type: none;
    }
    .core-value-div ul li {
        padding: 3px 0;
    }
    .fab, .fas {
        font-size: 1.5em;
        padding: 0 1px;
    }
    .fas.fa-envelope-square,
    .fas.fa-phone-square-alt {
        opacity: 0.8;
    }

    .doncity-prefooter {
        padding: 20px 5px;
    }
    .doncity-prefooter > div {
        width: 90%;
        text-align: center;
        margin: 20px auto;
        font-size: 14px;
    }
    footer {
        padding: 0 20px;
    }
    
}