/* NSG Lớp Zoom – Landing page [nsg_lop_landing]
   Bảng màu "màn hình chart vàng": nền mực xanh than, vàng kim, nến xanh/đỏ. */
.nsg-lz-landing {
	--nsg-bg: #0e1a1f;        /* mực chart */
	--nsg-card: #14252b;      /* bảng */
	--nsg-line: #24414a;      /* lưới chart */
	--nsg-text: #eef3f1;
	--nsg-muted: #9db1ad;
	--nsg-gold: #e9b949;
	--nsg-gold2: #f6d784;
	--nsg-red: #e2574c;
	--nsg-green: #3fb67a;
	--nsg-font: "Be Vietnam Pro", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	font-family: var(--nsg-font);
	font-size: 17px;
	line-height: 1.6;
	background: var(--nsg-bg);
	color: var(--nsg-text);
	overflow-x: hidden;
	padding-bottom: 84px; /* chừa chỗ cho thanh dính trên điện thoại */
}
.nsg-lz-landing h1, .nsg-lz-landing h2, .nsg-lz-landing h3,
.nsg-lz-landing p, .nsg-lz-landing ul, .nsg-lz-landing ol, .nsg-lz-landing figure { margin: 0; }
.nsg-lz-landing a { color: var(--nsg-gold2); }
.nsg-lz-landing h1, .nsg-lz-landing h2, .nsg-lz-landing h3, .nsg-lz-landing button, .nsg-lz-landing input { font-family: var(--nsg-font); }
.nsg-lz-landing :focus-visible { outline: 3px solid var(--nsg-gold2); outline-offset: 3px; }

.nsg-lz-landing .nsg-lp-container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.nsg-lz-landing .nsg-lp-narrow { max-width: 760px; }

/* ---------- Thanh trên cùng ---------- */
.nsg-lz-landing .nsg-lp-top {
	position: sticky; top: 0; z-index: 30;
	background: rgba(14, 26, 31, .92);
	-webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--nsg-line);
	padding-top: env(safe-area-inset-top);
}
body.admin-bar .nsg-lz-landing .nsg-lp-top { top: 32px; }
@media (max-width: 782px) { body.admin-bar .nsg-lz-landing .nsg-lp-top { top: 0; } }
.nsg-lz-landing .nsg-lp-top-in { display: flex; align-items: center; justify-content: space-between; min-height: 60px; gap: 12px; }
.nsg-lz-landing .nsg-lp-brand { font-weight: 800; font-size: 18px; color: var(--nsg-text); }
.nsg-lz-landing .nsg-lp-top-btn {
	display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px;
	border: 1.5px solid var(--nsg-gold); border-radius: 10px;
	color: var(--nsg-gold2); font-weight: 700; font-size: 15px; text-decoration: none;
}
.nsg-lz-landing .nsg-lp-top-btn:hover { background: rgba(233, 185, 73, .12); }

/* ---------- Hero ---------- */
.nsg-lz-landing .nsg-lp-hero {
	position: relative;
	padding: 36px 0 48px;
	background:
		linear-gradient(var(--nsg-line) 1px, transparent 1px) 0 0 / 100% 56px,
		var(--nsg-bg);
	background-blend-mode: normal;
	isolation: isolate;
}
.nsg-lz-landing .nsg-lp-hero::before { /* lưới chart mờ */
	content: ""; position: absolute; inset: 0; z-index: -2;
	background: linear-gradient(180deg, rgba(14, 26, 31, .55), var(--nsg-bg) 92%);
}
.nsg-lz-landing .nsg-lp-candles {
	position: absolute; left: 0; right: 0; bottom: 0; z-index: -1;
	width: 100%; height: 46%; opacity: .22; pointer-events: none;
}
.nsg-lz-landing .nsg-lp-candles .u { fill: var(--nsg-green); stroke: var(--nsg-green); stroke-width: 1.5; }
.nsg-lz-landing .nsg-lp-candles .d { fill: var(--nsg-red); stroke: var(--nsg-red); stroke-width: 1.5; }

.nsg-lz-landing .nsg-lp-hero-grid { display: grid; grid-template-columns: 1fr; gap: 28px; align-items: start; }

.nsg-lz-landing .nsg-lz-badge { background: rgba(233, 185, 73, .14); color: var(--nsg-gold2); font-size: 15px; letter-spacing: 0; }
.nsg-lz-landing .nsg-lp-kicker { margin-top: 18px; color: var(--nsg-muted); font-size: 15px; font-weight: 500; }

.nsg-lz-landing .nsg-lp-h1 {
	margin: 4px 0 14px;
	font-family: var(--nsg-font);
	font-size: clamp(34px, 8.6vw, 60px);
	line-height: 1.08;
	font-weight: 800;
	letter-spacing: -0.02em;
	text-wrap: balance;
	color: var(--nsg-gold2);
	background: linear-gradient(180deg, #fbe7ad 0%, var(--nsg-gold) 55%, #b8862b 100%);
	-webkit-background-clip: text; background-clip: text;
	-webkit-text-fill-color: transparent;
}
.nsg-lz-landing .nsg-lp-sub { max-width: 34em; color: var(--nsg-muted); font-size: 18px; }

.nsg-lz-landing .nsg-lp-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 20px 0; padding: 0; list-style: none; }
.nsg-lz-landing .nsg-lp-chips li {
	padding: 8px 12px; border-radius: 10px;
	background: var(--nsg-card); border: 1px solid var(--nsg-line);
	font-size: 15px; font-weight: 500;
}

.nsg-lz-landing .nsg-lz-cd { max-width: 440px; }
.nsg-lz-landing .nsg-lz-cd-box { background: var(--nsg-card); border-radius: 10px; }
.nsg-lz-landing .nsg-lz-cd-box b { font-family: var(--nsg-font); font-weight: 800; }

.nsg-lz-landing .nsg-lp-mini { display: flex; align-items: center; gap: 14px; margin-top: 18px; }
.nsg-lz-landing .nsg-lp-avatar {
	flex: 0 0 56px; width: 56px; height: 56px; border-radius: 50%; overflow: hidden;
	display: flex; align-items: center; justify-content: center;
	background: linear-gradient(135deg, var(--nsg-gold2), #b8862b); color: #1b1405;
	font-weight: 800; font-size: 20px; border: 2px solid var(--nsg-gold);
}
.nsg-lz-landing .nsg-lp-avatar img { width: 100%; height: 100%; object-fit: cover; }
.nsg-lz-landing .nsg-lp-mini-name { font-weight: 700; }
.nsg-lz-landing .nsg-lp-mini-role { color: var(--nsg-muted); font-size: 15px; }

/* Thẻ form */
.nsg-lz-landing .nsg-lp-formcard {
	scroll-margin-top: 76px;
	padding: 22px 18px;
	background: var(--nsg-card);
	border: 1px solid var(--nsg-line);
	border-top: 4px solid var(--nsg-gold);
	border-radius: 16px;
	box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}
.nsg-lz-landing .nsg-lp-formtitle { margin: 0 0 10px; font-size: 22px; font-weight: 800; color: var(--nsg-text); }
.nsg-lz-landing .nsg-lz-notice { margin: 0 0 12px; }
.nsg-lz-landing .nsg-lz-label input { background: var(--nsg-bg); }

.nsg-lz-landing .nsg-lz-btn {
	font-family: var(--nsg-font);
	background: linear-gradient(180deg, var(--nsg-gold2), var(--nsg-gold));
	color: #1b1405 !important;
	letter-spacing: 0;
	box-shadow: 0 6px 0 #a7781f;
}
.nsg-lz-landing .nsg-lz-btn:hover { transform: translateY(1px); box-shadow: 0 5px 0 #a7781f; }
.nsg-lz-landing .nsg-lz-btn:active { transform: translateY(5px); box-shadow: 0 1px 0 #a7781f; }
.nsg-lz-landing .nsg-lz-zalo { box-shadow: 0 6px 0 #004bb8; }

/* ---------- Các phần nội dung ---------- */
.nsg-lz-landing .nsg-lp-sec { padding: 56px 0; }
.nsg-lz-landing .nsg-lp-sec--alt { background: #11211f; background: color-mix(in srgb, var(--nsg-card) 70%, var(--nsg-bg)); border-top: 1px solid var(--nsg-line); border-bottom: 1px solid var(--nsg-line); }
.nsg-lz-landing .nsg-lp-h2 {
	margin: 0 0 22px;
	font-family: var(--nsg-font);
	font-size: clamp(26px, 6vw, 38px);
	line-height: 1.18;
	font-weight: 800;
	letter-spacing: -0.01em;
	color: var(--nsg-text);
	text-wrap: balance;
}
.nsg-lz-landing .nsg-lp-h2--left { margin-bottom: 6px; }

.nsg-lz-landing .nsg-lp-list { max-width: 760px; padding: 0; list-style: none; display: grid; gap: 12px; }
.nsg-lz-landing .nsg-lp-list li {
	display: flex; gap: 14px; align-items: flex-start;
	padding: 14px 16px; border-radius: 12px;
	background: var(--nsg-card); border: 1px solid var(--nsg-line);
}
.nsg-lz-landing .nsg-lp-ico {
	flex: 0 0 28px; width: 28px; height: 28px; border-radius: 8px;
	display: inline-flex; align-items: center; justify-content: center;
	font-weight: 800; font-size: 15px;
}
.nsg-lz-landing .nsg-lp-list--pain .nsg-lp-ico { background: rgba(226, 87, 76, .16); color: var(--nsg-red); }
.nsg-lz-landing .nsg-lp-list--ok .nsg-lp-ico { background: rgba(63, 182, 122, .16); color: var(--nsg-green); }
.nsg-lz-landing .nsg-lp-list--win .nsg-lp-ico { background: rgba(233, 185, 73, .16); color: var(--nsg-gold); }
.nsg-lz-landing .nsg-lp-list--win li { background: transparent; border: 0; padding: 6px 0; }
.nsg-lz-landing .nsg-lp-bridge { margin-top: 20px; font-size: 19px; font-weight: 700; color: var(--nsg-gold2); }

.nsg-lz-landing .nsg-lp-learn { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: center; }
.nsg-lz-landing .nsg-lp-learn .nsg-lz-points li { font-size: 18px; margin-bottom: 14px; padding-left: 34px; }
.nsg-lz-landing .nsg-lp-learn .nsg-lz-points li::before { width: 24px; height: 24px; line-height: 24px; background: var(--nsg-green); color: #06150d; }
.nsg-lz-landing .nsg-lp-learn .nsg-lz-media { margin: 0; border: 1px solid var(--nsg-line); }
.nsg-lz-landing .nsg-lp-cta-line { margin-top: 28px; max-width: 420px; }

/* Giảng viên – phần nhấn mạnh duy nhất của trang */
.nsg-lz-landing .nsg-lp-teacher { display: grid; grid-template-columns: 1fr; gap: 28px; align-items: center; }
.nsg-lz-landing .nsg-lp-teacher-media { position: relative; }
.nsg-lz-landing .nsg-lp-teacher-photo { display: block; width: 100%; max-width: 420px; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 18px; border: 1px solid var(--nsg-line); }
.nsg-lz-landing .nsg-lp-trophy {
	display: block; width: 46%; max-width: 200px; aspect-ratio: 1; object-fit: cover;
	border-radius: 16px; border: 3px solid var(--nsg-gold);
	box-shadow: 0 18px 40px rgba(0, 0, 0, .45);
}
.nsg-lz-landing .nsg-lp-teacher-photo + .nsg-lp-trophy { position: absolute; right: 0; bottom: -18px; }
.nsg-lz-landing .nsg-lp-trophy-ph {
	width: 160px; height: 160px; border-radius: 50%;
	display: flex; align-items: center; justify-content: center; font-size: 84px;
	background: radial-gradient(circle at 35% 30%, rgba(246, 215, 132, .35), rgba(233, 185, 73, .08) 70%);
	border: 2px solid var(--nsg-gold);
}
.nsg-lz-landing .nsg-lp-role { color: var(--nsg-gold2); font-weight: 600; margin-bottom: 14px; }
.nsg-lz-landing .nsg-lp-bio { margin-top: 14px; max-width: 38em; color: var(--nsg-muted); }

/* Phản hồi học viên */
.nsg-lz-landing .nsg-lp-reviews { display: grid; grid-template-columns: 1fr; gap: 16px; }
.nsg-lz-landing .nsg-lp-review { padding: 18px; border-left: 4px solid var(--nsg-gold); background: var(--nsg-card); border-radius: 0 12px 12px 0; }
.nsg-lz-landing .nsg-lp-review blockquote { margin: 0 0 10px; padding: 0; border: 0; font-size: 17px; color: var(--nsg-text); font-style: normal; }
.nsg-lz-landing .nsg-lp-review figcaption { color: var(--nsg-muted); font-size: 15px; }

/* 3 bước */
.nsg-lz-landing .nsg-lp-steps { padding: 0; list-style: none; display: grid; grid-template-columns: 1fr; gap: 14px; max-width: 900px; }
.nsg-lz-landing .nsg-lp-steps li { display: flex; gap: 14px; align-items: center; font-size: 17px; }
.nsg-lz-landing .nsg-lp-steps b {
	flex: 0 0 44px; width: 44px; height: 44px; border-radius: 50%;
	display: inline-flex; align-items: center; justify-content: center;
	background: var(--nsg-gold); color: #1b1405; font-size: 19px; font-weight: 800;
}

/* FAQ */
.nsg-lz-landing .nsg-lp-faq details { border-bottom: 1px solid var(--nsg-line); }
.nsg-lz-landing .nsg-lp-faq summary {
	list-style: none; cursor: pointer; position: relative;
	padding: 18px 40px 18px 0; font-weight: 700; font-size: 17px; min-height: 44px;
}
.nsg-lz-landing .nsg-lp-faq summary::-webkit-details-marker { display: none; }
.nsg-lz-landing .nsg-lp-faq summary::after { content: "+"; position: absolute; right: 6px; top: 14px; font-size: 24px; color: var(--nsg-gold); transition: transform .2s; }
.nsg-lz-landing .nsg-lp-faq details[open] summary::after { transform: rotate(45deg); }
.nsg-lz-landing .nsg-lp-faq p { padding: 0 0 18px; color: var(--nsg-muted); }

/* Kêu gọi cuối trang */
.nsg-lz-landing .nsg-lp-final { padding: 64px 0; text-align: center; background: radial-gradient(700px 300px at 50% 0%, rgba(233, 185, 73, .16), transparent 70%); }
.nsg-lz-landing .nsg-lp-final .nsg-lp-h2 { margin-bottom: 10px; color: var(--nsg-gold2); }
.nsg-lz-landing .nsg-lp-final-when { margin-bottom: 18px; color: var(--nsg-text); font-weight: 600; }
.nsg-lz-landing .nsg-lp-final .nsg-lz-cd { margin-left: auto; margin-right: auto; }
.nsg-lz-landing .nsg-lp-final .nsg-lz-btn { max-width: 420px; margin: 8px auto 0; }

/* Chân trang */
.nsg-lz-landing .nsg-lp-footer { padding: 28px 0 36px; border-top: 1px solid var(--nsg-line); color: var(--nsg-muted); font-size: 14px; }
.nsg-lz-landing .nsg-lp-footer p + p { margin-top: 8px; }
.nsg-lz-landing .nsg-lp-foot-brand { color: var(--nsg-text); font-weight: 700; }
.nsg-lz-landing .nsg-lp-disclaimer { max-width: 60em; }

/* Thanh dính dưới màn hình (điện thoại) */
.nsg-lz-landing .nsg-lp-sticky {
	position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
	display: flex; align-items: center; gap: 12px;
	padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
	background: rgba(20, 37, 43, .97);
	border-top: 1px solid var(--nsg-line);
	transition: transform .25s ease;
}
.nsg-lz-landing .nsg-lp-sticky.is-hidden,
html.nsg-lz-registered .nsg-lz-landing .nsg-lp-sticky { transform: translateY(110%); }
.nsg-lz-landing .nsg-lp-sticky-text { flex: 1; line-height: 1.3; }
.nsg-lz-landing .nsg-lp-sticky-text b { display: block; font-size: 16px; color: var(--nsg-gold2); }
.nsg-lz-landing .nsg-lp-sticky-text small { color: var(--nsg-muted); font-size: 14px; }
.nsg-lz-landing .nsg-lp-sticky .nsg-lz-btn { width: auto; min-height: 48px; padding: 10px 22px; font-size: 17px; box-shadow: none; }

/* ---------- Máy tính bảng / máy tính ---------- */
@media (min-width: 900px) {
	.nsg-lz-landing { padding-bottom: 0; }
	.nsg-lz-landing .nsg-lp-container { padding: 0 32px; }
	.nsg-lz-landing .nsg-lp-hero { padding: 64px 0 84px; }
	.nsg-lz-landing .nsg-lp-hero-grid { grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr); gap: 56px; }
	.nsg-lz-landing .nsg-lp-formcard { position: sticky; top: 84px; padding: 28px 26px; }
	.nsg-lz-landing .nsg-lp-sec { padding: 84px 0; }
	.nsg-lz-landing .nsg-lp-learn { grid-template-columns: 1fr 1fr; gap: 40px; }
	.nsg-lz-landing .nsg-lp-teacher { grid-template-columns: .9fr 1.1fr; gap: 56px; }
	.nsg-lz-landing .nsg-lp-reviews { grid-template-columns: repeat(2, 1fr); }
	.nsg-lz-landing .nsg-lp-steps { grid-template-columns: repeat(3, 1fr); }
	.nsg-lz-landing .nsg-lp-steps li { flex-direction: column; align-items: flex-start; }
	.nsg-lz-landing .nsg-lp-sticky { display: none; }
}

@media (prefers-reduced-motion: reduce) {
	.nsg-lz-landing *, .nsg-lz-landing *::before, .nsg-lz-landing *::after { animation: none !important; transition: none !important; }
}

/* Trong chế độ toàn màn hình: landing tự chiếm toàn trang, không bị căn giữa như khối thường */
body.nsg-fullscreen .nsg-lz-landing { width: 100%; min-height: 100dvh; }