.billetera-container {
    max-width: 600px;
    margin: auto;
    padding: 20px;
    border-radius: 10px;
    background: #f9f9f9;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.billetera-container h3 {
    text-align: center;
}

.billetera-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.billetera-form input {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.billetera-form button {
    background: #007bff;
    color: #fff;
    padding: 10px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
}

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

.billetera-historial {
    width: 100%;
    margin-top: 20px;
    border-collapse: collapse;
}

.billetera-historial th, .billetera-historial td {
    border: 1px solid #ddd;
    padding: 10px;
    text-align: center;
}

.billetera-historial th {
    background: #007bff;
    color: white;
}