.popup-overlay {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0,0,0,0.6);
	display: none;
	justify-content: center;
	align-items: center;
	z-index: 9999;
	padding: 10px; /* tránh sát mép mobile */
}

.popup-content {
	position: relative;
	width: 70vw; /* 70% chiều ngang màn hình */
	max-width: 900px; /* giới hạn max cho desktop */
	animation: fadeIn 0.3s ease;
}

	.popup-content img {
		width: 100%;
		height: auto;
		border-radius: 12px;
		display: block;
	}

/* nút close */
.close {
	position: absolute;
	top: -10px;
	right: -10px;
	background: red;
	color: white;
	width: 32px;
	height: 32px;
	font-size: 18px;
	font-weight: bold;
	text-align: center;
	line-height: 32px;
	border-radius: 50%;
	cursor: pointer;
}

/* 📱 mobile */
@media (max-width: 768px) {
	.popup-content {
		max-width: 90%;
	}

	.close {
		width: 28px;
		height: 28px;
		font-size: 16px;
		line-height: 28px;
	}
}

/* 📱 mobile nhỏ (iphone SE, android nhỏ) */
@media (max-width: 480px) {
	.popup-content {
		max-width: 95%;
	}

	.close {
		top: -8px;
		right: -8px;
	}
}

@keyframes fadeIn {
	from {
		transform: scale(0.85);
		opacity: 0;
	}

	to {
		transform: scale(1);
		opacity: 1;
	}
}