*{
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Poppins,sans-serif;
    outline: none;
    text-decoration: none;
    list-style: none;
    scroll-behavior: smooth;
}
:root{
    --red: rgb(231,60,60);
    --bg: rgb(2,2,2);
    --bg2:#0a0909;
    --light: #f1f1f1;
    --link: rgb(155,40,40);
}
html{
    font-size: 62.5%;
    overflow-x: hidden ;
}
body{
    background: var(--bg);
    color:var(--light);
    position: relative;

}
section{
    padding:10rem 7% 2rem;
    min-height:100vh;

}
span{
   color: var(--red); 
}
.btn{
    display:inline-block;
    color: var(--red);
    border: 1px solid var(--red);
    border-radius:2rem;
    padding: 1rem 2.8rem;
    transition: .2s ease-in-out;
    font-size: 2rem;
}
.btn:hover{
    background-color: var(--red);
    color: var(--light);
    box-shadow: 0 0 1rem var(--red);
}
/* navigation et Header */
 header{
    position:fixed;
    z-index: 100;
    background: var(--bg);
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    padding: 2rem;
    display:flex;
    align-items: center;
    justify-content: space-between;
}

header.sticky{
    border-bottom:.1rem solid rgba(0, 0,0, 0);
}
.logo {
    font-size:2.5rem;
    color: var(--light);
    font-weight:800;

}
.logo span{
    font-weight:400;
}
.navigation a{
    font-size:1.7rem;
    color: var(--light);
    margin-left: 4rem;
    transition: .2s ease-in-out;
    position:relative;
} 
.navigation a::before{
    content: "";
    position: absolute;
    bottom: 0;
    left:50%;
    transform: translateX(-50%);
    display: block;
    width: 0%;
    height: 1px;
    background: var(--red);
    transition:width .2s ease-in-out;
}
.navigation a:hover, .navigation a.active{
    color: var(--red);

}
.navigation a:hover::before, .navigation a.active::before{
    width: 100%;
}
#menu-burger{
    font-size: 3.6rem;
    cursor: pointer;
    color:var(--light);
    display: none;
}


/* section home */
.home{
    display:flex;
    justify-content: center;
    align-items: center;
}
.home img{
    width: 65vw;
    max-width: 100%;
    animation: animImg 4s ease-in-out infinite;
}
@keyframes animImg{
    0%{
        transform: translateY(0%)
    }
    50%{
        transform: translateY(-2.4rem)
    }
    100%{
        transform: translateY(0%);
    }
}

.home-content h3{
    font-size:3.2rem;
    font-weight: 700;
}
.home-content h3:nth-of-type(2){
    margin-bottom: 2rem;
}
.home-content h1{
    font-size:5.6rem;
    font-weight:700;
    line-height:1.3;
}
.home-content p{
    font-size:1.6rem;
}
.social-media a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 4rem;
    height: 4rem;
    font-size: 1.9rem;
    color: var(--red);
    border: 1px solid var(--red);
    border-radius: 50%;
    margin: 3rem 1.5rem 3rem 0;
    transition:background .2s ease-in-out;

}
.social-media a:hover{
    background:var(--red);
    box-shadow:0 0 1rem var(--red);
    color:var(--light);
}
/* about */
.about{
    display:flex;
    justify-content: center;
    align-items: center;
    gap:2rem;
    background: var(--bg2);

}
.about img{
    width: 35vw;
}
.section-title{
    text-align: center;
    font-size:4.5rem;
}
.about-content h2{
    text-align:left;
    line-height:1.2;
}
.about-content h3{
    font-size: 2.6rem;
}
.about-content p{
    font-size:1.6rem;
    margin: 2rem 0 3rem ;
}
/* Services */
.services h2{
    margin-bottom: 5rem;
    
}
.services-content{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap:2rem;
}
.services-box{
    flex:11 30rem;
    background:var(--bg2);
    padding:3rem -2rem -4rem;
    border-radius: 2rem;
    text-align: center;
    border: .2rem solid var(--bg);
    transition:.2s ease-in-out;
}
.services-box:hover{
    border-color: var(--red);
    transform: scale(1.02);
}
.services-box i {
    font-size: 7rem;
    color: var(--red);
}
.services-box h3{
    font-size: 2.6rem;
}
.services-box p{
    font-size:1.6rem;
    margin:1rem 0 3rem ;
}

/* portfolio */
.portfolio{
    background: var(--bg2);
}
.portfolio h2{
    margin-bottom: 4rem;
}
.portfolio-container{
    display: grid;
    grid-template-columns: repeat(3,1fr);
    align-items: center;
    gap: 2rem;
}
.portfolio-box{
    position: relative;
    border-radius: 2rem;
    overflow: hidden;
    display: flex;
}
.portfolio-box img{
    width: 100%;
    transition: .2s ease-in-out;
}
portfolio-box:hover img{
    transform: scale(1.1);
}
.portfolio-layer{
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0,0,0,.1),var(--red));
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    padding: 0 4rem;
    transform: translateY(100%);
    transition: .2s ease-in-out;

}
.portfolio-box:hover .portfolio-layer{
    transform: translateY(0%);
}

.portfolio-layer h4{
    font-size: 3rem;
}
.portfolio-layer p{
    font-size: 1.6rem;
    margin: 3rem 0 1rem;
}
.portfolio-layer a{
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 5rem;
    height: 5rem;
    background: var(--light);
    border-radius: 50%;

}
.portfolio-layer a i {
    font-size: 2rem;
    color: var(--bg2);
}
/* Contact */
.contact h2{
    margin-bottom: 3rem;
}
.contact form{
    width: 100%;
    max-width: 600px;  /* largeur max sur desktop */
    margin: 0 auto;
    padding: 0 1rem;

}
.contact form .input-box{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.contact form .input-box input, .contact form textarea{
    width: 100%;
    padding: 1.5rem;
    font-size: 1.6rem;
    color: var(--light);
    background: var(--bg2);
    border-radius: .8rem;
    margin: 0.7rem 0;

}
.contact form .input-box input {
    width: 49%;
}
.contact form textarea{
    resize:none ;
    height: 150px;
}
form input[type="submit"]{
    cursor: pointer;
    background: none;
}
/* Footer */

footer{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 2rem 9%;
    background: var(--bg2);

}
.footer-txt p{
    text-align: center;
    font-size: 1.6rem;

}
.footer-iconTop a {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.8rem;
    background: var(--bg2);
    border: 1px solid var(--red);
    border-radius: 50%;
    color: var(--red);
    font-size: 1.6rem;
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    transition:background .2s ease-in-out;


}
.footer-iconTop a:hover{
    background: var(--red);
    color: var(--light);
    box-shadow: 0 0 1rem var(--red) ;
}
.footer-iconTop .btn-home.btnDisplay{
    display: inline-flex;
}

/* Breaking  */

@media screen and (max-width:1200px){
    nav{
        padding: 2rem 3%;

    }
    section{
    padding:10rem 3% 2rem;
    }
    .services .portfolio{
        padding-bottom:7rem ;
    }
    .portfolio-container{
        grid-template-columns: repeat(2,1fr);
    }
    .contact{
        min-height:auto;

    }
    footer{
        padding:2rem 3%;
    }
}
@media screen and (max-width:768px) {
    #menu-burger{
        display:block;

    }
    .navigation{
        position: absolute;
        top: 100%;
        left:0;
        width: 100%;
        padding: 1rem -3%;
        background: var(--bg);
        border-top: .1rem solid rgba(0,0,0,2);
        box-shadow: 0 .5rem 1rem rgba(0,0,0,2);
        display: none;

    }
    .navigation a{
        display: block;
        font-size: 2rem;
        margin: 3rem 0;

    }
    .navigation.active{
        display:block;
    }

    .navigation a::before{
        display: none;
    }
    .home{
        flex-direction: column;
    }
    .home-content h3{
        font-size:2.6rem;
    }
    .home-content h1{
        font-size:5rem;
    }
    .home-img img{
        width:70vw;
        margin-top:4rem;
    }
    .about{
        flex-direction: column-reverse;
    }
    .about img{
        width: 70vw;
        margin-bottom: 4rem;

    }
    .services h2, .portfolio{
        margin-bottom: 3rem;
    }
    .portfolio-container{
        grid-template-columns:1fr;
    }
    .contact form {
        width: 100%;
        max-width: 500px;   /* réduit un peu */
        padding: 0 1rem;
    }
}
@media screen and (max-width: 450px){

    html{
        font-size: 50%;
    }
    /* .contact form .input-box input{
        width: 100%;
    } */
    .contact form {
        max-width: 100%;   /* vraiment full width */
        padding: 0 1rem;
    }
    .contact form .input-box {
        flex-direction: column; /* inputs en colonne */
    }
    .contact form .input-box input {
        width: 100% !important; /* override du 49% */
    }

}
@media screen and (max-width:365px){
    .home-img img, .about img{
        width: 90px;
        max-width: 100%;

    }

    
}
    
