/* N?n popup */
#main_popup.popup-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0,0,0,0.5);
	display: none; /* ?n m?c d?nh */
	justify-content: center;
	align-items: center;
	z-index: 1000;
}

/* Popup form */
#main_popup .popup-content {
	background-size: cover;
	padding: 50px 40px;
	border-radius: 10px;
	width: 90%;
	max-width: 640px;
	position: relative;
	box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

/* Nút dóng */
#main_popup .close-btn {
	position: absolute;
	top: 10px;
	right: 15px;
	font-size: 20px;
	font-weight: bold;
	color: #1B6FB5;
	cursor: pointer;
}

#main_popup .title {
	text-align: center;
	color: #1B6FB5;
	margin-bottom: 20px;
}

/* Form input */
#main_popup input[type="text"],
#main_popup input[type="email"] {
	width: 100%;
	padding: 10px;
	margin-bottom: 15px;
	border: 1px solid #ccc;
	border-radius: 5px;
	font-size: 16px;
}

/* Nút submit */
#main_popup .submit-btn {
	width: 100%;
	padding: 12px;
	background-color: #1B6FB5;
	color: white;
	border: none;
	border-radius: 5px;
	font-size: 16px;
	cursor: pointer;
}

#main_popup .submit-btn:hover {
	background-color: #155a93;
}