body {
    font-family: 'Arial', sans-serif; 
    margin: 0;
    padding: 0;
    width: 100vw;
    overflow-x: hidden;
    font-family: "Inter", sans-serif;
}
/* En-tête */
header {
    background: white; 
    padding: 10px 20px;
    text-align: center;
    height: 10vh;
    display: flex;
    align-items: center; 
}
header h1{
    width: 25vw;
    margin-left: 5vw;
    color: black;
}
nav ul {
    margin-left: 40vw;
    width: 25vw;
    display: flex;
    justify-content: space-between; 
    list-style: none; 
    padding: 0;
}
nav ul li {
    display: inline; 
    margin-right: 10px;
}
nav ul li a {
    text-decoration: none; 
    color: black;
}
.hamburger-menu {
    display: none; 
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
}
/* sections principales */
main {
    padding: 0px;
    margin-top: 0px;
}
/* Premiere partie */
#title{
    height: 75vh;
    background-color: #3A6E8C;
    overflow: hidden; 
}
#title1{
    color: white; 
    font-size: 9em;
    font-weight: bold;
    margin-top: 15vh;
    margin-left: 20vw;
}
#title2{
    position: absolute;
    color: white; 
    font-size: 6em;
    font-weight: bold;
    margin-top: -4vh;
    margin-left: 30vw;
    z-index: 0;
}
#title p{
    color: white; 
    font-size: 2em;
    margin-top: 10vh;
    margin-left: 10vw;
}
.btn {
    display: inline-block; 
    padding: 10px 20px;
    margin: 5px; 
    margin-left: 27vw;
    background-color: white; 
    color: #3A6E8C; 
    text-align: center; 
    text-decoration: none; 
    font-weight: bold; 
    border-radius: 5px; 
    transition: background-color 0.3s, transform 0.2s; 
}
.btn:hover {
    background-color: #3A6E8C; 
    color: white;
    transform: translateY(-2px); 
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); 
}
#title img{
    position: absolute;
    height: 70vh;
    margin-top: 5vh;
    margin-left: 55vw;
}
/* Partie 2*/
#partie2 h1{
    text-align: center;
    font-size: 2em;
}
#partie2 p{
    width: 70vw;
    margin-top: 5vh;
    margin-left: 15vw;
    text-align: justify;
}
.btn2 {
    display: inline-block; 
    padding: 10px 20px;
    margin: 5px; 
    margin-left: 45vw;
    margin-top: 5vh;
    margin-bottom: 5vh;
    background-color: #3A6E8C; 
    color: white; 
    text-align: center; 
    text-decoration: none; 
    font-weight: bold; 
    border-radius: 5px; 
    transition: background-color 0.3s, transform 0.2s; 
}
.btn2:hover {
    background-color: white; 
    color: #3A6E8C;
    transform: translateY(-2px); 
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); 
}
/* Partie 3*/
#partie3{
    background-color: #3A6E8C;
    overflow: hidden;
}
#partie3 h1{
    margin-left: 15vw;
    color: white;
    font-size: 3em;
}
#part3cont{
    width: 70vw;
    margin-left: 15vw;
    overflow: hidden;
    display: flex;
    justify-content: space-around; 
    align-items: center;
    margin-bottom: 5vh;
}
#part3cont img{
    width: 20vw;
}
#part3cont p{
    width: 20vw;
    font-size: 1.2em;
    text-align: justify;
    color: white;
}
/* Partie 4 */
#partie4 h1{
    margin-left: 15vw;
    width: 75vw;
    color: black;
    font-size: 3em;
}
#box1, #box2{
    display: flex;
    justify-content: space-around; 
    align-items: center;
    margin-top: 2vh;
    margin-bottom: 2vh;
}
#txt h2{
    color: #3A6E8C;
}
#txt p{
    width: 25vw;
    font-size: 1.2em;
}
#partie4 img{
    width: 25vw;
}
/* Partie 5 */
#partie5{
    padding-left: 25vw;
    padding-right: 25vw;
    height: 30vh;
    display: flex;
    justify-content: space-around; 
    align-items: center;
    background-color: #3A6E8C;
    align-items: center; 
}
#partie5 img{
    height: 25vh;
}
#partie5 p{
    height: 20vh;
    width: 15vw;
    color: #ffffff;
}
/* Partie 6 */
#partie6{
    display: flex;
    justify-content: space-around; 
    align-items: center;
    padding-left: 15vw;
    padding-right: 15vw;
    padding-top: 3vh;
}
#icone{
    width: 20vw;
    overflow: hidden;
}
#icone img{
    width: 10vw;
    margin-left: 5vw;
}
#icone p{
    width: 15vw;
    margin-left: 2.5vw;
    text-align: center;
    font-size: 1em;
    font-weight: bold;
}
/* Partie 7 */
#contentPart7{
    width: 60vw;
    margin-left: 20vw;
    margin-top: 5vh;
    height: 70vh;
    overflow: hidden;
    display: flex;
    justify-content: space-around; 
    align-items: center;
}
#contentimg1{
    width: 34vw;
    height: 65vh;
}
#contentimg2{
    width: 25vw;
    height: 65vh;
}
#contentimg1 img{
    width: 100%;
    height: 101%;
}
#contentimg2 img{
    width: 100%;
    height: 50%;
}
/* Pied de page */
footer {
    background: #3A6E8C;
    color: #ffffff;
    text-align: center;
    height: 20vh;
    width: 100%;
    display: flex;
    justify-content: space-around; 
    align-items: center;
}
footer div{
    width: 20vw;
    height: 18vh;
}
.btn3 {
    display: inline-block; 
    padding: 10px 20px;
    margin: 2px; 
    background-color: white; 
    color: #3A6E8C; 
    text-align: center; 
    text-decoration: none; 
    font-weight: bold; 
    border-radius: 5px; 
    transition: background-color 0.3s, transform 0.2s; 
}
/* Styles responsifs */
@media (max-width: 1068px) {
    header{
        height: 5vh;
    }
    header h1{
        font-size: 1em;
        width: 75%;
        text-align: left;
    }
    nav ul {
        display: none; 
        flex-direction: column;
        width: 100%; 
        background: white;
        transition: all 0.3s;
        position: absolute;
        top: 5vh; 
        left: 0;
        margin: 0;
        padding: 0;
    }
    nav ul li {
        text-align: center; 
        padding: 10px 0; 
        width: 100%; 
    }
    nav ul li a {
        display: block;
    }
    .hamburger-menu {
        display: block;
    }
    /* Premiere partie */
    #title{
        height: 800px;  
    }
    #title1{
        font-size: 5em;
        width: 100%;
        text-align: center;
        margin-top: 50px;
        margin-left: 0vw;
    }
    #title2{
        position: relative;
        font-size: 4em;
        margin-top: 0px;
        margin-left: 0vw;
        width: 100%;
        text-align: center;
    }
    #title p{
        font-size: 1em;
        margin-top: 400px;
        margin-left: 0;
        width: 100%;
        text-align: center;
    }
    .btn {
        margin-top: 20px; 
        margin-left: 30vw;
        width: 30vw;
    }
    #title img{
        width: 70vw;
        margin-top: 300px;
        margin-left: 15vw;
        height: auto;
    }
    /* Partie 2*/
    #partie2 h1{
        text-align: center;
        font-size: 1.5em;
    }
    /* Partie 3*/

    #partie3 h1{
        font-size: 1.5em;
    }
    #part3cont{
        flex-wrap: wrap;
    }
    #part3cont img{
        width: 60vw;
    }
    #part3cont p{
        width: 60vw;
        font-size: 1em;
    }
    /* Partie 4 */
    #partie4 h1{
        margin-left: 15vw;
        width: 75vw;
        font-size: 1.5em;
    }
    #box1, #box2{
        flex-wrap: wrap;
    }
    #txt p{
        width: 90vw;
        font-size: 1.2em;
    }
    #partie4 img{
        width: 90vw;
    }
    /* Partie 5 */
    #partie5{
        padding: 0;
        height: 300px;
        flex-wrap: wrap;
    }
    #partie5 img{
        height: 150px;
        width: 45vw;
    }
    #partie5 p{
        height: 100vh;
        width: 90vw;
        text-align: center;
    }
    /* Partie 6 */
    #partie6{
        flex-wrap: wrap;
        padding-left: 5vw;
        padding-right: 5vw;
        padding-top: 3vh;
    }
    #icone{
        width: 80vw;
    }
    #icone img{
        width: 50vw;
        margin-left: 15vw;
    }
    #icone p{
        width: 70vw;
        margin-left: 5vw;
    }
    /* Partie 7 */
    #contentPart7{
        width: 90vw;
        margin-left: 5vw;
        margin-top: 0;
        height: 50vh;
    }
    #contentimg1{
        width: 50vw;
        height: 30vh;
    }
    #contentimg2{
        width: 40vw;
        height: 30vh;
    }  
    footer {
        height: 25vh;
        flex-wrap: wrap;
        margin: 0;
        padding: 0;
    }
    footer div{
        width: 45vw;
        height: 9vh;
        font-size: 0.6em;
    }
    .btn3 {
        font-size: 0.7em;
    }
}