body {
    margin: 0;
    font-family: Arial, sans-serif;
}

/* Dim Background */
.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Popup Box */
.popup-box {
	position: relative;
	max-width: 1200px;
	width: 90%;
}

/* Close Button */
.close-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    background: #fff;
    color: #000;
    font-size: 22px;
    font-weight: bold;
    width: 30px;
    height: 30px;
    line-height: 28px;
    text-align: center;
    border-radius: 50%;
    cursor: pointer;
}