body {
    margin: 0;
    background-color: #f0e6d9;
    width: 100%;
    overflow-x: hidden;
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Header */
header {
    height: 80px;
    width: 100%;
    display: flex;
    align-items: center;
    background-color: #2c3e50;
    padding-left: 40px;
}

/* Profil */
.profile {
    border-radius: 50%;
    height: 75px;
    width: 75px;
    background-image: url(https://media.beauxarts.com/uploads/2019/12/autorretrato-2-964x1178.jpg);
    background-size: cover;
    background-position: center;
    border: 2px solid #e74c3c;
}

/* Titre centré */
.Titre {
    font-size: 50px;
    font-weight: bold;
    background: #2c3e50;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 20px;
    text-align: center;
}

/* Section principale centrée */
.presentation {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-bottom: 5em;
}

/* Image centrée */
.presentation img {
    width: 1000px;
    max-width: 90%;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
}

/* Centrage de l’image et de la checklist */
.center-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

/* Checklist */
.checklist {
    max-width: 600px;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 10px;
    background-color: #f9f9f9;
    font-family: Arial, sans-serif;
}

/* Checklist texte */
.checklist h3 {
    font-size: 30px;
    margin-bottom: 10px;
    color: #333;
}

/* Conteneur WebGL bien centré */
#webGL {
    width: 80%;
    max-width: 1000px;
    height: 500px;
    background-color: #ccc; /* Placeholder */
    margin: 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

p {
    text-align: center;
    margin-top: 10px;
    margin-left: 200px;
    margin-right: 200px;
}

.sources {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.source-link {
    display: inline-block;
    text-decoration: none;
    font-size: 18px;
    color: white;
    background: linear-gradient(to right, #2c3e50, #34495e);
    padding: 10px 20px;
    border-radius: 8px;
    transition: transform 0.2s ease, background 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.source-link:hover {
    background: linear-gradient(to right, #34495e, #2c3e50);
    transform: scale(1.05);
}