/* Reset et styles de base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem;
    text-align: center;
}

header h1 {
    margin-bottom: 0.5rem;
}

#discipline-title {
    font-size: 1.2rem;
    font-weight: bold;
}

/* Menu horizontal */
#horizontal-menu {
    background-color: #3498db;
    padding: 0.5rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

#horizontal-menu a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background-color 0.3s;
}

#horizontal-menu a:hover {
    background-color: #2980b9;
}

/* Sections principales */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

section {
    background-color: white;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

section h2 {
    color: #2c3e50;
    margin-bottom: 1rem;
    border-bottom: 2px solid #3498db;
    padding-bottom: 0.5rem;
}

/* Contenu dynamique */
#actualites-content, #travaux-content, #qcm-content {
    min-height: 100px;
}

/* Cartes pour les actualités, travaux et QCM */
.card {
    background-color: #f9f9f9;
    border-left: 4px solid #3498db;
    padding: 0.8rem;
    margin-bottom: 1rem;
    border-radius: 4px;
}

.card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.card p {
    color: #555;
}

.card .date {
    font-size: 0.8rem;
    color: #777;
    text-align: right;
}

/* Pied de page */
footer {
    background-color: #2c3e50;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr;
    }

    #horizontal-menu {
        flex-direction: column;
        align-items: center;
    }
}