body {
    margin: 0;
    padding: 0;
    height: 100vh;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #eef2f3;
    position: relative;
}

h1 {
    font-size: 4rem;
    color: #333;
    z-index: 1;
}

.popup {
    display: none;
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translate(-50%, -20%);
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
    z-index: 2;
    flex-direction: column;
    align-items: center;
}

.popup-box h2 {
    margin: 0 0 1rem 0;
    font-size: 1.5rem;
    color: #444;
}

.popup-box input[type="email"] {
    padding: 0.7rem;
    width: 250px;
    font-size: 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #f9f9f9;
    text-align: center;
    pointer-events: none;
}