body {
    margin: 0;
    font-family:'Segoe UI', sans-serif;
    font-weight: 500;
    background-image: url("../../IMAGES/fond.jpg");
    background-size: cover;
}

.retour {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 32px;
    color: white;
    text-decoration: none;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 10px 15px;
    border-radius: 50%;
}

h1 {
    text-align: center;
    color: #39133F;
    top: 20px;
}

.presentation {
    max-width: 900px;
    margin: 2rem auto;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    border-radius: 12px;
    overflow: hidden;
    background-color: rgba(255, 255, 255, 0.2);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.presentation img {
    margin: 20px auto;
    width: 90%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: relative;
    border-radius: 10px;
    filter: grayscale(0.3);
}

.projet-info {
    padding: 0 40px;
    color: #3F0A51;
    line-height: 1.5;
    font-size: 1rem;
}

.projet-info p {
    margin-bottom: 20px;
}

.commentaire {
    max-width: 900px;
    margin: 2rem auto;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    color: #3F0A51;
}

.commentaire form textarea {
    width: 97%;
    height: 100px;
    padding: 10px;
    font-family: 'Segoe UI', sans-serif;
    font-size: 1rem;
    border: none;
    border-radius: 10px;
    resize: vertical;
    background-color: rgba(255, 255, 255, 0.8);
    box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.1);
}

.commentaire form button {
    margin-top: 10px;
    padding: 10px 20px;
    background-color: #39133F;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s ease;
}

.commentaire form button:hover {
    background-color: #5b1f65;
}

.liste-commentaires {
    margin-top: 20px;
    list-style: none;
    padding: 0;
}

.liste-commentaires li {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.liste-commentaires strong {
    color: #39133F;
    font-weight: bold;
}

@media (max-width: 768px) {
    header ul {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 15px;
    }

    header a {
        font-size: 18px;
    }

    .presentation {
        margin: 1rem;
        padding: 10px;
    }

    .presentation img {
        width: 100%;
    }

    .projet-info {
        padding: 20px;
        font-size: 0.95rem;
    }

    .commentaire {
        margin: 1rem;
        padding: 15px;
    }

    .commentaire form textarea {
        height: 80px;
        font-size: 0.95rem;
    }

    .commentaire form button {
        width: 100%;
        font-size: 1rem;
    }
}