body {
    font-family: Arial, sans-serif;
    background-color: #eaeaea;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.container {
    background-color: #ffffff;
    padding: 25px;
    border-radius: 8px;
    text-align: center;
    width: 300px;
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.15);
}

input {
    width: 90%;
    padding: 8px;
    margin-bottom: 10px;
}

button {
    padding: 10px;
    width: 100%;
    background-color: #2196F3;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #1e88e5;
}

#mensaje {
    margin-top: 15px;
    font-size: 18px;
    font-weight: bold;
}