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

body {
    background-color: #e5e5e5;
    color: #333;
    font-family: 'Arial', sans-serif;
    text-align: center;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: #37474f; /* Bleu-gris */
    color: #fff;
    border-bottom: 5px solid #ff6f00; /* Accent orange */
}

h1 {
    font-size: 26px;
    text-transform: uppercase;
    margin-left: 20px;
    letter-spacing: 2px;
}

header .contact {
    text-align: right;
    margin-right: 20px;
}

header .contact p {
    margin: 5px 0;
}

.navbar {
    background-color: #546e7a; /* Bleu-gris clair */
    padding: 10px 0;
    display: flex;
    justify-content: center;
    gap: 20px;
    border-top: 5px solid #ff6f00;
    border-bottom: 5px solid #ff6f00;
}

.navbar a {
    color: #fff;
    text-decoration: none;
    padding: 10px 30px;
    font-weight: bold;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.navbar a:hover {
    background-color: #ff6f00;
    border-color: #ff6f00;
}

section {
    padding: 50px 20px;
    text-align: center;
    max-width: 90%;
    margin: 30px auto;
    background: #fff;
    border: 2px solid #37474f; /* Bordure rectangulaire */
    box-shadow: 0px 4px 15px rgba(0, 0, 0, 0.1);
}

section h2 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #37474f;
    text-transform: uppercase;
    letter-spacing: 2px;
}

section p {
    max-width: 800px;
    margin: 15px auto;
    line-height: 1.6;
    color: #555;
}

section img {
    width: 45%;
    margin: 20px auto;
    display: block;
    border: 3px solid #37474f;
    border-radius: 0px; /* Rectangulaire */
}

footer {
    text-align: center;
    padding: 20px;
    background-color: #37474f;
    color: #fff;
    border-top: 5px solid #ff6f00;
}

@media (max-width: 768px) {
    header, .navbar, footer {
        text-align: center;
    }

    header .contact {
        text-align: center;
    }

    header .contact p {
        margin-bottom: 5px;
    }

    section img {
        width: 90%;
    }
}