:root {
    --primary-color: #007bff; /* Bleu pour les éléments interactifs */
    --secondary-color: #6c757d; /* Gris secondaire */
    --accent-color: #28a745; /* Vert pour succès/validation */
    --danger-color: #dc3545; /* Rouge pour alerte/danger */
    --text-color: #343a40; /* Texte sombre */
    --background-color: #f8f9fa; /* Fond clair */
    --card-background: #ffffff; /* Fond des cartes/sections */
    --border-color: #dee2e6; /* Couleur des bordures */
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    max-width: 960px;
    margin: 20px auto;
    background: var(--card-background);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px 0;
    text-align: center;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    margin-bottom: 20px;
}

header h1 {
    margin: 0;
    font-size: 2.5em;
}

header p {
    font-size: 1.1em;
    margin-top: 5px;
}

h2 {
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    margin-top: 30px;
}

h3 {
    color: var(--secondary-color);
    margin-top: 20px;
}

ul {
    list-style-type: disc;
    margin-left: 20px;
}

li {
    margin-bottom: 8px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.back-button, .main-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin-top: 20px;
    text-align: center;
}

.back-button:hover, .main-button:hover {
    background-color: #0056b3; /* Darker blue on hover */
    transform: translateY(-2px);
    text-decoration: none;
}

.table-link {
    display: block;
    background-color: var(--secondary-color);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    margin-bottom: 5px;
    text-align: left;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.table-link:hover {
    background-color: #5a6268; /* Darker grey on hover */
    transform: translateX(5px);
    text-decoration: none;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    color: var(--secondary-color);
    font-size: 0.9em;
    border-top: 1px solid var(--border-color);
}