Retro Styled Sign Up Form

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Retro Styled Sign-Up Form</title>
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');
        body, html {
            margin: 0;
            padding: 0;
            height: 100%;
            font-family: 'Press Start 2P', cursive;
            background: #ffcc00;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .signup-form {
            background: #fff;
            border: 4px solid #000;
            border-radius: 15px;
            padding: 30px;
            width: 350px;
            text-align: center;
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
        }
        .signup-form h2 {
            font-size: 1.5em;
            margin-bottom: 20px;
            color: #000;
            text-transform: uppercase;
        }
        .signup-form .input-group {
            margin-bottom: 15px;
        }
        .signup-form .input-group input {
            width: 80%;
            height: 45px;
            padding-left: 5%;
            border: 2px solid #000;
            border-radius: 10px;
            background: #ffcc00;
            color: #000;
            font-family: 'Press Start 2P', cursive;
            transition: 0.3s;
        }
        .signup-form .input-group input:focus {
            outline: none;
            background: #ffe066;
        }
        .signup-form .btn {
            background: #000;
            color: #fff;
            border: none;
            padding: 15px 30px;
            border-radius: 10px;
            cursor: pointer;
            transition: 0.3s;
            display: inline-block;
            font-size: 1em;
            font-family: 'Press Start 2P', cursive;
        }
        .signup-form .btn:hover {
            background: #333;
        }
    </style>
</head>
<body>
    <div class="signup-form">
        <h2>Retro Sign Up</h2>
        <form>
            <div class="input-group">
                <input type="text" placeholder="Username" required>
            </div>
            <div class="input-group">
                <input type="email" placeholder="Email" required>
            </div>
            <div class="input-group">
                <input type="password" placeholder="Password" required>
            </div>
            <div class="input-group">
                <input type="password" placeholder="Confirm Password" required>
            </div>
            <button type="submit" class="btn">Sign Up</button>
        </form>
    </div>
</body>
</html>

Retro Styled Sign Up Form - MeggiTools