body {
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    text-align: center;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 600px;
    margin: 40px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

input {
    padding: 10px;
    width: 100px;
    font-size: 1rem;
}

button {
    padding: 10px 15px;
    font-size: 1rem;
    margin-left: 5px;
    border-radius: 5px;
    border: none;
    cursor: pointer;
}

#feedback {
    font-size: 1.5rem;
    font-weight: bold;
    margin: 20px 0;

}

#history {
    margin-top: 15px;
    font-style: italic;
    color: #444;
}