body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #000000; /* Dark theme background */
    color: #E0E0E0; /* Light gray text color */
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

.container {
    background-color: rgba(40, 20, 60, 0.5); /* Semi-transparent dark purple */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px); /* Safari compatibility */
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    max-width: 600px;
    margin: auto; /* Center container */
}

h1 {
    font-size: 4em;
    color: #C77DFF; /* Vibrant purple */
    margin-bottom: 0.2em;
}

h2 {
    font-size: 1.5em;
    color: #E6E6FA; /* Bright lavender */
    margin-bottom: 1.5em;
}

form input[type="email"] {
    padding: 10px;
    margin-right: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    font-size: 1em;
    background-color: rgba(0, 0, 0, 0.3); /* Dark semi-transparent */
    color: #FFFFFF; /* White text color */
}

form input[type="email"]:focus {
    border-color: #A020F0; /* Main purple on focus */
}

form button[type="submit"] {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    background-color: #A020F0; /* Vibrant purple */
    color: white;
    font-size: 1em;
    cursor: pointer;
}

form button[type="submit"]:hover {
    background-color: #C77DFF; /* Lighter purple on hover */
}

@media (max-width: 600px) {
    h1 {
        font-size: 3em;
    }

    form input[type="email"] {
        display: block;
        margin: 0 auto 10px; /* Stack input and button */
    }

    form button[type="submit"] {
        display: block;
        margin: 0 auto;
    }
}