body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    margin: 0;
    padding: 0;
}

h1, h2 {
    text-align: center;
    color: #2c3e50;
}

form {
    max-width: 600px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

input[type="number"], select {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
}

button:hover {
    background-color: #2980b9;
}

/* Grille des stands */
.stand-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* 5 colonnes */
    gap: 10px;
    margin: 20px 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.stand {
    width: 100px;
    height: 100px;
    background-color: #ecf0f1;
    border: 1px solid #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.stand.selected {
    background-color: #3498db;
    color: white;
}

/* Messages */
.success, .error {
    text-align: center;
    margin-top: 20px;
    font-weight: bold;
}

.success {
    color: green;
}

.error {
    color: red;
}

/* Lien retour */
a {
    display: block;
    text-align: center;
    margin-top: 20px;
    font-size: 16px;
    text-decoration: none;
    color: #3498db;
}

a:hover {
    text-decoration: underline;
}
