body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-image: url('IMG_5771.JPEG');
    background-size: cover;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    background-color: rgba(255, 255, 255, 0.8);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

h1 {
    color: #333;
}

h3 {
    margin-bottom: 10px;
    color: #444;
}

input[type="number"] {
    padding: 10px;
    width: calc(100% - 22px);
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    margin: 5px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}

.result {
    margin-top: 20px;
    font-size: 18px;
    color: #333;
}