@font-face {
    font-family: iransansdn;
    font-style: normal;
    font-weight: bold;
    src: url('../font/eot/iransansdnbold.eot');
    src: url('../font/eot/iransansdnbold.eot?#iefix') format('embedded-opentype'),
        /* IE6-8 */
        url('../font/woff2/iransansdnbold.woff2') format('woff2'),
        /* FF39+,Chrome36+, Opera24+*/
        url('../font/woff/iransansdnbold.woff') format('woff'),
        /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
        url('../font/ttf/iransansdnbold.ttf') format('truetype');
}

@font-face {
    font-family: iransansdn;
    font-style: normal;
    font-weight: 300;
    src: url('../font/eot/iransansdnlight.eot');
    src: url('../font/eot/iransansdnlight.eot?#iefix') format('embedded-opentype'),
        /* IE6-8 */
        url('../font/woff2/iransansdnlight.woff2') format('woff2'),
        /* FF39+,Chrome36+, Opera24+*/
        url('../font/woff/iransansdnlight.woff') format('woff'),
        /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
        url('../font/ttf/iransansdnlight.ttf') format('truetype');
}

@font-face {
    font-family: iransansdn;
    font-style: normal;
    font-weight: normal;
    src: url('../font/eot/iransansdn.eot');
    src: url('../font/eot/iransansdn.eot?#iefix') format('embedded-opentype'),
        /* IE6-8 */
        url('../font/woff2/iransansdn.woff2') format('woff2'),
        /* FF39+,Chrome36+, Opera24+*/
        url('../font/woff/iransansdn.woff') format('woff'),
        /* FF3.6+, IE9, Chrome6+, Saf5.1+*/
        url('../font/ttf/iransansdn.ttf') format('truetype');
}
:root {
    --orange: #ff7800;
    --black: #130f40;
    --light-color: #666;
    --box-shadow: 0 .5rem 1.5rem rgba(0, 0, 0, .1);
    --border: .2rem solid rgba(0, 0, 0, .1);
    --outline: .1rem solid rgba(0, 0, 0, .1);
    --outline-hover: .1rem solid var(--black);
}
.btn {
    margin-top: 1rem;
    display: inline-block;
    padding: .8rem 3rem;
    font-size: 1.7rem;
    border-radius: .5rem;
    border: .2rem solid var(--black);
    color: var(--black);
    cursor: pointer;
}

.btn:hover {
    background: var(--orange);
    color: #fff;
    border: .2rem solid var(--orange);
}
* {
    font-family: iransansdn;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
    border: none;
    text-decoration: none;
    text-transform: capitalize;
    transition: all .2s linear;
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
    scroll-behavior: smooth;
    scroll-padding-top: 7rem;
}
body{
    background: #eee;
}
.about{
    text-align: center;
    background-color: #fff;
    width: 90%;
    margin: 6rem auto;
    padding: 40px 50px;
    border-radius: .5rem;
    box-shadow: var(--box-shadow);
}
.about .main{
    text-align: right;
    margin: 30px 0;
}
.about .main ul li{
    list-style: none;
    margin: 15px 0;
    font-size: 1.5rem;
}
.about .head h1{
    margin: 20px 0;
    font-size: 2.5rem;
    color: var(--black);
}
.about .head h4{
    margin: 20px 0;
    font-size: 2rem;
    color: var(--black);
}
.about .des p{
    margin: 20px 0;
    color: var(--light-color);
}


@media(max-width:991px) {
    html {
        font-size: 55%;
    }

    .header {
        padding: 2rem;
    }

    section {
        padding: 2rem;
    }


}

@media(max-width:768px) {

    #menu-btn {
        display: inline-block;
    }

    .header .navbar {
        position: absolute;
        top: 110%;
        right: -110%;
        width: 30rem;
        box-shadow: var(--box-shadow);
        border-radius: .5rem;
        background: #fff;
    }

    .header .navbar.active {
        right: 2rem;
        transition: .4s linear;
    }

    .header .navbar a {
        font-size: 2rem;
        margin: 2rem 2.5rem;
        display: block;
    }

    .header .form-search {
        width: 90%;
    }
}

@media(max-width:450px) {
    html {
        font-size: 50%;
    }
}