body,
html {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    font-family: Arial, sans-serif;
    box-sizing: border-box;
}

body {
    background-image: url('assets/background.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
    backdrop-filter: blur(3px);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.container {
    background-color: rgba(0, 0, 0, 0.8);
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

label {
    display: block;
    font-size: 14px;
    margin-bottom: 5px;
}

input[type="number"] {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    border-radius: 4px;
    border: 1px solid #cccccc;
    box-sizing: border-box;
}

button {
    background-color: #ff4500;
    color: #ffffff;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    margin-top: 10px;
    width: 100%;
}

button:hover {
    background-color: #ff0000;
}

.result {
    margin-top: 20px;
    font-size: 18px;
    font-weight: bold;
}

/* Media Queries for Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .container {
        max-width: 100%;
        padding: 15px;
    }

    h1 {
        font-size: 22px;
    }

    button {
        font-size: 14px;
        padding: 10px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 20px;
    }

    button {
        font-size: 14px;
        padding: 8px;
    }

    .form-group {
        margin-bottom: 10px;
    }

    input[type="number"] {
        padding: 8px;
    }
}