.terbilang-container {
    max-width: 500px;
    margin: 20px auto;
    padding: 20px;
    border-radius: 12px;
    background-color: #f8f9fa;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    font-family: sans-serif;
}
.terbilang-container h1 {
    font-size: 1.4rem;
    margin-bottom: 10px;
}
.terbilang-container input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
}
.terbilang-container button {
    padding: 10px;
    width: 100%;
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
}
#terbilang_result {
    margin-top: 15px;
    font-weight: bold;
}