body {
    background-color: #b2ffff;
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
}

h1 {
    color: #009999;
    font-size: 3em;
    margin-top: 50px;
    margin-bottom: 20px;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

h4 {
    color: #660033;
    font-family: Arial, Helvetica, sans-serif;
}
.subtitle-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
}

h2.subtitle {
    color: #009999;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    font-size: 1.8em;
    margin: 0;
}

.subtitle-section img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border: 4px solid #009999;
    border-radius: 20px;
}

.travaux {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
    margin-bottom: 80px;
}

.cours {
    background-color: #cfffff;
    border: 2px solid #006666;
    border-radius: 15px;
    width: 80%;
    max-width: 800px;
    padding: 20px 30px;
    text-align: left;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cours:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.cours h3 {
    color: #006666;
    font-size: 1.4em;
    margin-bottom: 10px;
}

.cours ul {
    list-style-type: none;
    padding-left: 0;
    margin: 0;
}

.cours ul li {
    margin: 6px 0;
}

.cours ul li a {
    color: #660033;
    text-decoration: none;
    font-size: 1.1em;
}

.cours ul li a:hover {
    text-decoration: underline;
}