* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #000000;
    color: #fff;
}

#header {
    width: 100%;
    height: 100vh;
    background-image: url(Images/FondMain.png);
    background-size: cover;
    background-position: center;
}

.container {
    padding: 10px 10%;
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    background-color: #3333337a; 
    padding: 10px 0;
}

.logo {
    width: 250px;
}

nav ul li {
    display: inline-block;
    list-style: none;
    margin: 10px 20px;
}

nav ul li a {
    color: #73e696;
    text-decoration: none;
    font-size: 18px;
    position: relative;
}

nav ul li a::after {
    content: '';
    width: 0;
    height: 3px;
    background: #458560;
    position: absolute;
    left: 0;
    bottom: -6px;
    transition: 0.2s;
}

nav ul li a:hover::after {
    width: 100%;
}

.header-text {
    margin-top: 10%;
    font-size: 30px;
}

.header-text h1 {
    font-size: 60px;
    margin-top: 20px;
}

.header-text h1 span {
    color: #73e696
}

/*--------------------------About------------------------*/


#about{
    padding: 80px 0;
    color: #c9c9c9;
    font-family: 'Poppins', sans-serif;
}
.row{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.about-col-1{
    flex-basis: 35%;
}
.about-col-1 img{
    width: 100%;
    border-radius: 15px;
}
.about-col-2{
    flex-basis: 60%;
}
.sub-title{
    margin-bottom: 20px;
    font-size: 60px;
    font-weight: 600;
    color: #458560;
}

.tab-titles{
    display: flex;
    margin:20px 0 40px;
}
.tab-links{
    margin-right: 50px;
    font-size: 18px;
    font-weight: 500;
    cursor:pointer;
    position: relative;

}

.tab-links::after{
    content: '';
    width: 0;
    height: 3px;
    background:#458560 ;
    position: absolute;
    left: 0;
    bottom: -8px;
    transition: 0.5s;
}

.tab-links.active-link::after{
    width: 50%;
}

.tab-contents ul li{
    list-style: none;
    font-size: 18px;
    margin: 10px 0;
}
.tab-contents ul li span{
    color: #458560;
    font-size: 16px;
}
.tab-contents ul li lieu{
    color: #646464;
    font-size: 14px;
}
.tab-contents{
    display: none;
}
.tab-contents.active-tab{
    display: block;
}



/*--------------Logiciel--------*/

#services{
    padding: 30px 0;
}
.logiciel-lists{
    display: grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    grid-gap:40px;
    margin-top: 50px;
}

.logiciel-lists div{
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #262626;
    padding: 40px;
    font-size: 13px;
    font-weight: 300;
    border-right: 10px;
    transition: background 0.5s, transform 0.5s;
    position: relative;
}

.logiciel-lists div i{
    font-size: 50px;
    margin-bottom: 30px;
}
.logiciel-lists div h2{
    font-size: 30px;
    font-weight: 500;
    margin-bottom: 15px;
}
.logiciel-lists div a{
    text-decoration: none;
    color: #458560;
    font-size: 12px;
    margin-top: 20px;
    display: inline-block;
    
}
.logiciel-lists div:hover{
    background: #458560;
    transform: translateY(-10px);
}
.logiciel-lists div:hover a{
    color: #fff;
}


/*--------------------------Projet------------------------*/    

#projet{
    padding: 50px 0;
}

.worklist{
    display: grid;
    grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
    grid-gap:40px;
    margin-top: 50px;
}

.work{
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}
.work img{
    width: 100%;
    border-radius: 10px;
    display: block;
    transition: transform 0.5s;
}

.layer{
    width: 100%;
    height:0;
    background: linear-gradient(rgba(0,0,0,0.6), #458560);
    border-radius: 10px;
    position: absolute;
    left: 0;
    bottom: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 0 40px;
    text-align: center;
    font-size: 14px;
    transition: height 0.5s;
}
.layer h3{
    font-weight: 500;
    margin-bottom: 20px;
}
.layer a{
    margin-top: 20px;
    color: #458560;
    text-decoration:none ;
    font-size: 18px;
    line-height: 60px;
    background:#fff;
    width: 60px;
    height: 60px;
    border-radius: 50px;
    text-align: center;
}
.work:hover img{
transform: scale(1.1);
}
.work:hover .layer{
    height: 100%;
}
.btn{
    display: block;
    margin: 50px auto;
    width: fit-content;
    border: 1px solid #458560;
    padding: 14px 50px;
    border-radius: 6px;
    text-decoration: none;
    color: #fff;
    transition: background 0.5s;
}
.btn:hover{
    background-color: #458560;
}


/*---------- css for small screens --------*/
nav .fas{
    display: none;
}

@media only screen and (max-width:600px){
    
    .header-text {
        margin-top: 10%;
        font-size: 30px;
    }
    .header-text h1{
        font-size: 30px;
    }
    nav {
        background-color: #00000000;
    }

    nav .fas{
        display: block;
        font-size: 25px;
    }
  
    nav ul{
        background: #458560;
        position: fixed;
        top: 0;
        right: -200px;
        width: 200px;
        height: 100vh;
        padding-top:50px;
        z-index:2;
        transition: right 0.5s;
    }

    nav ul li {
        display: block;
        margin: 25px;
    }

    nav ul .fas{
        position: absolute;
        top: 25px;
        right: 25px;
        cursor: pointer;
    }

    .sub-title{
        font-size: 40px;
    }
    .about-col-1,.about-col-2{
        flex-basis: 100%;
    }
    .about-col-1{
        margin-bottom: 30px;
    }
    .about-col-2{
        font-size: 14px;
    }
    .tab-links{
        font-size: 16px;
        margin-right: 20px;
    }
    .tab-contents ul li span{
        color: #458560;
        font-size: 14px;
    }
    .tab-contents ul li{
        list-style: none;
        font-size: 16px;
        margin: 10px 0;
    }

    .tab-contents ul li lieu{
        color: #646464;
        font-size: 12px;
    }
}