body {
    margin: 0;
    padding: 0;
    font-family: Arial;
    background: black;
    position: relative;
}

/* FIXED BACKGROUND */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    background: radial-gradient(#00ff00 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.2;

    pointer-events: none;
    z-index: -1; /* keep negative */
}

/* container */
.container {
    position: relative;
    z-index: 4; /* increase */
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* form card */
form {
    position: relative;
    z-index: 5; /* add this */
    background: #111;
    padding: 30px;
    width: 320px;
    border-radius: 15px;
    box-shadow: 0 0 25px #00ff00;
    text-align: center;
}

h2 {
    color: #00ff00;
}

/* Inputs */
input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border-radius: 8px;
    border: none;
    outline: none;
    background: #ccc;
}

/* Buttons */
button {
    width: 100%;
    padding: 12px;
    background: #00ff00;
    border: none;
    border-radius: 8px;
    margin-top: 10px;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #00cc00;
}

/* Register button */
.register-btn {
    display: block;
    margin-top: 10px;
    padding: 10px;
    border: 1px solid #00ff00;
    border-radius: 8px;
    color: #00ff00;
    text-decoration: none;
}

p {
    color: #aaa;
    font-size: 12px;
    margin-top: 15px;
}