/* ==========================================================================
   TỐI ƯU HÓA CHO IPHONE & HƯỚNG DẪN THOÁT TRÌNH DUYỆT ZALO SANG SAFARI
   ========================================================================== */

/* 1. TỐI ƯU HÓA PHẦN CỨNG CHO IPHONE / SAFARI (CHỐNG GIẬT LAG & TRÀN VRAM) */
canvas, #container canvas, .ggskin {
	-webkit-transform: translate3d(0, 0, 0) !important;
	transform: translate3d(0, 0, 0) !important;
	-webkit-backface-visibility: hidden !important;
	backface-visibility: hidden !important;
	image-rendering: -webkit-optimize-contrast;
	touch-action: none !important;
	-webkit-tap-highlight-color: transparent !important;
}

/* Vô hiệu hóa kéo dãn đàn hồi khó chịu của iOS Safari */
html, body {
	overscroll-behavior: none !important;
	-webkit-overflow-scrolling: auto !important;
}

/* 2. LỚP PHỦ HƯỚNG DẪN THOÁT ZALO SANG SAFARI (ZALO BREAKOUT OVERLAY) */
.zalo-guide-overlay {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	width: 100vw;
	height: 100vh;
	height: 100dvh;
	background: rgba(5, 10, 20, 0.92);
	backdrop-filter: blur(16px);
	-webkit-backdrop-filter: blur(16px);
	z-index: 2147483647;
	display: none;
	flex-direction: column;
	justify-content: flex-start;
	align-items: center;
	padding: 24px 20px;
	box-sizing: border-box;
	user-select: none;
	-webkit-user-select: none;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	animation: zaloFadeIn 0.35s ease-out;
}

.zalo-guide-overlay.active {
	display: flex;
}

@keyframes zaloFadeIn {
	from { opacity: 0; transform: translateY(-10px); }
	to { opacity: 1; transform: translateY(0); }
}

/* Mũi tên động chỉ vào nút 3 chấm (•••) ở góc trên bên phải Zalo */
.zalo-arrow-box {
	position: absolute;
	top: 12px;
	right: 20px;
	display: flex;
	flex-direction: column;
	align-items: flex-end;
	gap: 6px;
	animation: zaloArrowBounce 1.5s infinite ease-in-out;
}

.zalo-arrow-icon {
	width: 38px;
	height: 38px;
	stroke: #38bdf8;
	filter: drop-shadow(0 0 10px #38bdf8);
}

.zalo-arrow-tag {
	background: #38bdf8;
	color: #0f172a;
	font-size: 12px;
	font-weight: 800;
	padding: 4px 10px;
	border-radius: 12px;
	box-shadow: 0 4px 15px rgba(56, 189, 248, 0.5);
	white-space: nowrap;
}

@keyframes zaloArrowBounce {
	0%, 100% {
		transform: translateY(0) rotate(0deg);
	}
	50% {
		transform: translateY(-8px) rotate(-5deg);
	}
}

/* Thẻ nội dung thông báo */
.zalo-card-box {
	margin-top: 75px;
	width: 100%;
	max-width: 360px;
	background: linear-gradient(165deg, rgba(15, 23, 42, 0.96) 0%, rgba(10, 15, 29, 0.99) 100%);
	border: 1px solid rgba(56, 189, 248, 0.3);
	border-radius: 20px;
	box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8), 0 0 30px rgba(56, 189, 248, 0.2);
	padding: 22px 18px;
	display: flex;
	flex-direction: column;
	align-items: center;
	text-align: center;
	gap: 14px;
	color: #ffffff;
}

.zalo-badge-icon {
	width: 52px;
	height: 52px;
	border-radius: 50%;
	background: linear-gradient(135deg, #0284c7, #0369a1);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 26px;
	box-shadow: 0 8px 25px rgba(2, 132, 199, 0.5);
	border: 2px solid rgba(255, 255, 255, 0.25);
}

.zalo-title {
	margin: 0;
	font-size: 17px;
	font-weight: 700;
	color: #ffffff;
	line-height: 1.4;
}

.zalo-desc {
	margin: 0;
	font-size: 13px;
	color: #cbd5e1;
	line-height: 1.6;
}

.zalo-desc strong {
	color: #38bdf8;
}

/* Các bước thực hiện */
.zalo-steps-box {
	width: 100%;
	background: rgba(255, 255, 255, 0.04);
	border: 1px solid rgba(255, 255, 255, 0.08);
	border-radius: 14px;
	padding: 12px 14px;
	display: flex;
	flex-direction: column;
	gap: 8px;
	text-align: left;
	font-size: 12.5px;
	color: #e2e8f0;
	box-sizing: border-box;
}

.zalo-step-item {
	display: flex;
	align-items: center;
	gap: 8px;
}

.zalo-step-num {
	width: 20px;
	height: 20px;
	border-radius: 50%;
	background: #38bdf8;
	color: #0f172a;
	font-size: 11px;
	font-weight: 800;
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
}

/* Các nút hành động */
.zalo-actions-box {
	width: 100%;
	display: flex;
	flex-direction: column;
	gap: 9px;
	margin-top: 4px;
}

.zalo-btn-copy {
	width: 100%;
	padding: 12px;
	border-radius: 12px;
	background: linear-gradient(135deg, #0284c7, #2563eb);
	color: #ffffff;
	font-size: 14px;
	font-weight: 700;
	border: none;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
	transition: all 0.25s ease;
	outline: none;
}

.zalo-btn-copy:active {
	transform: scale(0.97);
}

.zalo-btn-dismiss {
	background: none;
	border: none;
	color: #94a3b8;
	font-size: 12px;
	padding: 6px;
	cursor: pointer;
	outline: none;
	text-decoration: underline;
}

.zalo-btn-dismiss:hover {
	color: #ffffff;
}

/* Nút nhỏ nhắc nhở dưới đáy màn hình nếu đã bỏ qua hướng dẫn */
.zalo-floating-reminder {
	position: fixed;
	bottom: 86px;
	left: 50%;
	transform: translateX(-50%);
	background: rgba(15, 23, 42, 0.9);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	border: 1px solid rgba(56, 189, 248, 0.35);
	color: #38bdf8;
	padding: 6px 14px;
	border-radius: 20px;
	font-size: 11.5px;
	font-weight: 600;
	display: none;
	align-items: center;
	gap: 6px;
	box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5), 0 0 15px rgba(56, 189, 248, 0.3);
	z-index: 2147483630;
	cursor: pointer;
	animation: zaloReminderPulse 2.5s infinite;
}

.zalo-floating-reminder.active {
	display: flex;
}

@keyframes zaloReminderPulse {
	0%, 100% { opacity: 1; transform: translateX(-50%) scale(1); }
	50% { opacity: 0.85; transform: translateX(-50%) scale(1.03); }
}

/* 3. RESPONSIVE CHO ĐIỆN THOẠI (80% KÍCH THƯỚC CÂN ĐỐI) */
@media screen and (max-width: 768px) {
	.zalo-card-box {
		width: 80vw;
		max-width: 80vw;
		max-height: 80vh;
		max-height: 80dvh;
		overflow-y: auto;
		border-radius: 18px;
		padding: 16px 14px;
		margin-top: 60px;
	}
}