/* Reset de base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Corps de la page */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f2f2f2;
    color: #333;
    padding: 40px 20px;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

/* Titres */
h1 {
    margin-bottom: 30px;
    font-size: 2em;
    color: #222;
}

/* Liens */
a {
    color: #555;
    text-decoration: none;
    margin-bottom: 20px;
}

a:hover {
    text-decoration: underline;
}

/* Boutons */
button {
    width: 400px;
    padding: 12px 20px;
    margin: 10px;
    border: none;
    border-radius: 6px;
    background-color: #565760;
    color: white;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
    min-width: 200px;
}

button:hover {
    background-color: #666;
}

.btnAdd,
.btnAddPalier {
    background-color: blue;
}

.btnAdd:hover,
.btnAddPalier:hover {
    background-color: darkblue;
}

/* Conteneur centralisé */
.menu-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.button-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

/* Responsive */
@media (max-width: 600px) {
    button {
        width: 100%;
    }

    .button-group {
        width: 100%;
    }
}