* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    overflow: hidden;
}

#bg-video {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
    z-index: -3;
}

.overlay {
    position: fixed;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: -2;
}

.card {
    position: absolute;
    top: 50%;
    left: 30%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    width: 320px;
    color: white;
    cursor: move;
    z-index: 10;
}

#card2 {
    left: 70%;
}

.logo {
    width: 120px;
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: red;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: 0.3s;
}

.btn:hover {
    background: darkred;
}

/* Lightning effect */
.lightning {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border-radius: 20px;
    pointer-events: none;
    animation: electric 1.5s infinite;
}

@keyframes electric {
    0% {
        box-shadow: 0 0 5px #00ffff,
                    0 0 10px #00ffff,
                    0 0 20px #00ffff,
                    inset 0 0 10px #00ffff;
    }
    50% {
        box-shadow: 0 0 10px #ffffff,
                    0 0 25px #00ffff,
                    0 0 40px #00ffff,
                    inset 0 0 15px #00ffff;
    }
    100% {
        box-shadow: 0 0 5px #00ffff,
                    0 0 10px #00ffff,
                    0 0 20px #00ffff,
                    inset 0 0 10px #00ffff;
    }
}