body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 2rem;
    background-color: #f4f4f9;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1, h2 {
    color: #333;
}

form {
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold; /* Fixed: Changed 'font-weight: 16px' to 'bold' */
    color: #555;
}

input[type="url"], input[type="email"], input[type="text"], input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #e2e8f0; /* Fixed: Removed invalid '0.5rem' border */
    border-radius: 5px;
    background-color: #f8fafc;
    font-size: 16px;
    box-sizing: border-box;
}

input[type="url"]:focus, input[type="email"]:focus, input[type="text"]:focus, input[type="password"]:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.3);
}

button {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

textarea {
    width: 100%;
    min-height: 400px;
    max-height: 600px;
    overflow-y: auto;
    background-color: #f8fafc;
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    resize: vertical;
    font-family: monospace;
    font-size: 14px;
    box-sizing: border-box;
}

#result {
    margin-top: 2rem;
}

#message {
    font-size: 16px;
    padding: 1rem;
    border-radius: 5px;
    background-color: #fff;
    border: 1px solid #e2e8f0;
}