:root {
    --dark-color:#19283f;
    --green-color:#33d1cc;
    --red-color:#ff3150;
    --yellow-color:#ffc400;
    --section-color:#eff7fa;
}
body {
    font-family: 'roboto', sans-serif;
}  
.main-btn{
    background-color: var(--red-color);
    color: var(--yellow-color);
    padding: 0.5rem 1rem;
}
.main-btn:hover{
    background-color: var(--red-color);
    color: var(--yellow-color);
}
/* main title line */
.main-title::after {
    content: "";
    width: 120px;
    height: 2px;
    background-color: var(--green-color);
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
}
/* start navbar */
.navbar{
    background-color: var(--dark-color);
}
.navbar .navbar-nav .nav-link{
    color: white;
}

.navbar .navbar-nav .nav-link.active,
.navbar .navbar-nav .nav-link:focus,
.navbar .navbar-nav .nav-link:hover{
    color:var(--green-color);
}
.navbar .search {
    border-left: 1px solid var(--green-color);
}
.navbar .search svg {
    color:var(--green-color);
}
.navbar .navbar-toggler  {
    color: white;
    font-size:25px ;
    border-color: white;
}

.navbar .navbar-toggler:focus {
    box-shadow: none;
}
.navbar .navbar-toggler[aria-expanded="true"] {
    color: var(--green-color);
}
/* end navbar */

/* start landing */
.landing{
    background-color:var(--dark-color) ;
    min-height: calc(100vh - 72px);
    
}
/* end landing */
/* start features */
.features .icon-holder{
    height: 200px;
}
.features .icon-holder svg{
    left: 50%;
    transform: translateX(-50%);
}
.features .icon-holder .number{
    font-size: 12rem;
    color: var(--section-color);
}
.features .icon-holder .icon{
    color: var(--green-color);
}
.features .feat h4 {
    color: var(--yellow-color);
}
/* end features */
/* start our work */
.our-work{
    background-color: var(--section-color);
}
.our-work ul .active{
    background-color: var(--red-color);
}
.our-work ul li{
    padding: 0.5rem 1rem;
    cursor: pointer;
}
.our-work ul li:not(.active):hover{
    color: var(--red-color);
}
.our-work .box{
    padding: 5px;
    overflow: hidden;
    position: relative;
    
}
.our-work .box::before{
    content: attr(data-work);
    position: absolute;
    background-color: #33d1cc;
    width: calc(100% - 10px);
    height: calc(100% - 10px);
    opacity: 76%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    color: white;
    transition: 0.3s;
    font-size: 1.5rem;
    transform: translateX(calc(-100% - 5px));
}
.our-work .box:hover::before{
    transform: translateX(0)
}
/* end our work */
/* start stuff */
.stuff .description{
    max-width: 400px;
}
/* end stuff */
/* start team */
.team {
    background-color: var(--section-color);
}
.team  h2{
    color: var(--yellow-color);
}
.team  .box h4{
    background-color: var(--green-color);
}
/* end team */
/* start project */
.project {
    background-color: var(--dark-color);
}
/* end project */
/* start subscribe */
.subscribe{
    background-color: var(--yellow-color);
}
.subscribe input[type="text"] {
    border: none;
    border-bottom: 1px solid white;
}
.subscribe input[type="text"]:focus {
    outline: none;
}
.subscribe ::placeholder {
    color: white;
}
.subscribe input[type="submit"] {
    background-color: var(--dark-color);
    color: var(--yellow-color);
}
/* end subscribe */
/* start footer */
.footer {
    background-color: var(--dark-color);
}
.footer .copyright >span {
    color: var(--green-color);
    font-weight: bold;
}
.footer .copyright div span {
    color: var(--yellow-color);
}
.footer .contact ul svg {
    width: 20px;
    height: 20px;
}
.footer .facebook {
    background-color:#1877f2;
}
.footer .linkedin {
    background-color:#0a66c2;
}
.footer .github {
    background-color:#4078c0;
}
.footer .envelope {
    background-color:#4078c0;
}
/* end footer */