body {
    font-family: Arial, sans-serif;
    margin: 20px;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1, h2 {
    color: #0056b3;
    text-align: center;
    margin-bottom: 20px;
}

form label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

form input[type="text"],
form input[type="password"],
form input[type="email"],
form select,
form textarea {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

form button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

form button:hover {
    background-color: #0056b3;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table th, table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

table th {
    background-color: #f2f2f2;
    color: #555;
}

table tbody tr:nth-child(even) {
    background-color: #f9f9f9;
}

table tbody tr:hover {
    background-color: #f1f1f1;
}

/* Règle pour les adhérents dont c'est l'anniversaire aujourd'hui */
tr.birthday-today {
    background-color: #ffcccc; /* Un rouge très clair */
    color: #cc0000; /* Texte rouge plus foncé */
    font-weight: bold;
}

tr.birthday-today:hover {
    background-color: #ffb3b3; /* Une nuance légèrement différente au survol */
}

button {
    background-color: #28a745;
    color: white;
    padding: 8px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    margin-top: 10px;
}

button:hover {
    background-color: #218838;
}

hr {
    border: 0;
    height: 1px;
    background: #ccc;
    margin: 40px 0;
}