/* Form Container Styles */
.form-container {
    display: flex; /* Use flexbox for alignment */
    flex-direction: column; /* Stack items vertically */
    align-items: center; /* Center items horizontally */
    justify-content: center; /* Center items vertically */
    background-color: #222; /* Dark background */
    padding: 20px; /* Padding around inputs */
    border: 2px solid #00ff00; /* Green border */
    border-radius: 10px; /* Rounded corners */
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.7); /* Glow effect */
    max-width: 400px; /* Maximum width of the box */
    margin: 20px auto; /* Center the box on the page */
}

/* Input Field Styles */
input[type="text"], input[type="number"] {
    width: calc(100% - 20px); /* Full width minus padding */
    padding: 10px; /* Padding for better appearance */
    margin: 10px 0; /* Margin for spacing */
    border: 2px solid #00ff00; /* Green border */
    border-radius: 5px; /* Slightly rounded corners */
    background-color: #1a1a1a; /* Dark background */
    color: #00ff00; /* Green text */
    font-family: 'Courier New', Courier, monospace; /* Monospace font */
    font-size: 16px; /* Font size */
    box-shadow: 0 0 5px rgba(0, 255, 0, 0.5); /* Glow effect */
}

/* Input Field Focus Effect */
input[type="text"]:focus, input[type="number"]:focus {
    outline: none; /* Remove default outline */
    border-color: #00cc00; /* Change border color on focus */
    box-shadow: 0 0 10px rgba(0, 204, 0, 0.7); /* Brighten glow on focus */
}

/* Button Styles */
button {
    padding: 10px 20px; /* Padding for the button */
    background-color: #00ff00; /* Button background */
    color: #0d0d0d; /* Button text color */
    border: none; /* No border */
    border-radius: 5px; /* Rounded corners */
    cursor: pointer; /* Pointer cursor on hover */
    font-family: 'Courier New', Courier, monospace; /* Monospace font */
    font-size: 16px; /* Font size */
    margin-top: 10px; /* Margin above the button */
    transition: background-color 0.3s ease; /* Transition for hover effect */
}

/* Button Hover Effect */
button:hover {
    background-color: #00cc00; /* Darken button on hover */
}
.result-container {
    margin-top: 20px;
    padding: 15px;
    background-color: #222;
    border: 2px solid #00ff00;
    border-radius: 5px;
    color: #00ff00;
}

.error {
    color: red; /* Error messages in red */
}