/* ==========================================================================
   01 — HERO CINEMATIC SCROLL TRIGGER (Luminous Luxury)
   Pinned container, multi-stage narrative transition from The Crescent to Triton Crown,
   culminating in an architectural reveal opening directly into Section 02.
   ========================================================================== */

.tc-hero-pin-wrapper {
	position: relative;
	width: 100%;
	height: 100vh;
	overflow: hidden;
	background: #040C16;
}

.tc-hero {
	position: relative;
	width: 100%;
	height: 100vh;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
	background-color: #040C16;
	will-change: transform;
	transform: translateZ(0);
}

/* Background layers */
.tc-hero__bg-container {
	position: absolute;
	inset: 0;
	z-index: 1;
	overflow: hidden;
}

.tc-hero__bg {
	position: absolute;
	inset: 0;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	will-change: transform, opacity;
}

.tc-hero__bg--crescent {
	z-index: 1;
	transform: scale(1.05);
	opacity: 1;
	background-image: var(--hero-bg-desk, url('../img/tong-quan-khu-crescent.webp'));
}

/* Lớp Vignette Mềm Mại chỉ dùng cho Stage 1 (Intro Text), sau đó fade out hoàn toàn để 3 ảnh sau TUYỆT ĐỐI KHÔNG BỊ OVERLAY Ở GIỮA */
.tc-hero__vignette {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	z-index: 2;
	pointer-events: none;
	background: radial-gradient(ellipse 75% 65% at 50% 50%, rgba(4, 12, 22, 0.86) 0%, rgba(4, 12, 22, 0.65) 28%, rgba(4, 12, 22, 0.22) 58%, rgba(4, 12, 22, 0) 80%);
	will-change: opacity;
}

.tc-hero__gold-backdrop {
	display: none;
}

/* Tấm rèm backdrop cũ (legacy hidden) */
.tc-hero__line-curtain {
	display: none;
}

/* Chuỗi 3 ảnh kiến trúc xuất hiện từ nhỏ đến lớn ở trung tâm — Smooth GPU compositing */
.tc-hero__seq-card {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	opacity: 0;
	transform-origin: center center;
	transform: scale(0.28) translateZ(0);
	pointer-events: none;
	overflow: hidden;
	box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4);
	backface-visibility: hidden;
	-webkit-backface-visibility: hidden;
	will-change: transform, opacity;
}
.tc-hero__seq-card--1 {
	z-index: 4;
	background-image: var(--hero-bg-desk, url('../img/tong-quan-trition-crown-Toa-A-2.webp'));
}
.tc-hero__seq-card--2 {
	z-index: 5;
	background-image: var(--hero-bg-desk, url('../img/tong-quan-trition-crown-Toa-A.webp'));
}
.tc-hero__seq-card--3 {
	z-index: 6;
	background-image: var(--hero-bg-desk, url('../img/tong-quan-trition-crown.webp'));
}

/* Lớp overlay màu ở cuối hình để cho logo và text nổi bật */
.tc-hero__bottom-overlay {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	width: 100%;
	height: clamp(260px, 42vh, 440px);
	background: linear-gradient(to top, 
		rgba(4, 12, 22, 0.95) 0%, 
		rgba(4, 12, 22, 0.78) 32%, 
		rgba(4, 12, 22, 0.35) 68%, 
		rgba(4, 12, 22, 0) 100%
	);
	z-index: 12;
	pointer-events: none;
	opacity: 0;
	will-change: opacity;
}

/* Overlay toàn màn hình cũ đã được gỡ bỏ */
.tc-hero__overlay,
.tc-hero__overlay-gradient {
	display: none;
}

/* Central Architectural Gold Guide Line (Legacy hidden) */
.tc-hero__guide-line {
	display: none;
}

/* Central Architectural SVG Shape Mask Reveal (bgchudao.webp) */
.tc-hero__shape-wrap {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	z-index: 3;
	pointer-events: none;
	opacity: 0;
	overflow: hidden;
	will-change: opacity;
}

.tc-hero__shape-svg {
	width: 100%;
	height: 100%;
	display: block;
}

/* Text Stages */
.tc-hero__stage {
	position: absolute;
	inset: 0;
	z-index: 5;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	padding-inline: var(--container-padding);
	text-align: center;
	width: 100%;
	max-width: 100%;
	margin-inline: auto;
	pointer-events: none;
}

/* Stage 1: The Crescent Masterpiece Intro */
.tc-hero__stage--intro {
	opacity: 1;
	width: 100%;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
}

/* Cụm Text Không Viền Hộp — Trong suốt 100%, dựa hoàn toàn vào vignette mềm mại phía sau */
.tc-hero__text-box {
	background: none !important;
	border: none !important;
	box-shadow: none !important;
	backdrop-filter: none !important;
	-webkit-backdrop-filter: none !important;
	max-width: 1000px;
	width: 100%;
	margin-inline: auto;
	padding: 0;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	pointer-events: auto;
}

.tc-hero__title {
	font-family: var(--font-heading);
	font-size: clamp(2.8rem, 2rem + 3.8vw, 5.4rem);
	font-weight: 700;
	line-height: 1.28;
	letter-spacing: 0.06em;
	margin-bottom: 1.5rem;
	text-align: center;
	width: auto;
	max-width: 100%;
	display: inline-block;
	overflow: visible;
}

.tc-hero__title.tc-gold-text {
	background-color: #D4AF37;
	background-image: url('../img/bgtextmask.webp');
	background-size: cover;
	background-position: center;
	background-repeat: no-repeat;
	-webkit-background-clip: text;
	background-clip: text;
	-webkit-text-fill-color: transparent;
	color: transparent;
	filter: drop-shadow(0 4px 22px rgba(0, 0, 0, 0.9));
	line-height: 1.28;
	padding-top: 0.18em;
	padding-bottom: 0.18em;
	margin-top: -0.18em;
	margin-bottom: -0.18em;
	overflow: visible;
}

.tc-hero__lead {
	font-size: clamp(1.1rem, 1rem + 0.45vw, 1.38rem);
	color: #FFFFFF;
	width: 100%;
	max-width: 860px;
	margin: 0 auto;
	line-height: 1.62;
	text-shadow: 0 2px 16px rgba(0, 0, 0, 0.95);
	font-weight: 400;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
}

.tc-hero__lead span {
	display: block;
	width: 100%;
	text-align: center;
	margin-inline: auto;
	line-height: 1.62;
}

.tc-hero__lead-sub {
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	color: #FFDF85;
	font-size: clamp(1rem, 0.9rem + 0.3vw, 1.25rem);
	letter-spacing: 0.08em;
	margin-top: clamp(0.75rem, 0.5rem + 0.4vw, 1.15rem);
	line-height: 1.65;
	font-weight: 700;
	text-transform: uppercase;
	text-shadow: 0 2px 14px rgba(0, 0, 0, 0.95);
	-webkit-text-stroke: 0.25px currentColor;
	display: block;
	width: 100%;
	text-align: center;
}

.tc-hero__scroll-indicator {
	position: absolute;
	bottom: clamp(2.5rem, 4vw, 4rem);
	left: 50%;
	transform: translateX(-50%);
	z-index: 5;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.6rem;
	color: #FFFFFF;
	font-size: 0.75rem;
	letter-spacing: 0.25em;
	text-transform: uppercase;
	font-weight: 600;
	text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
	transition: opacity .3s ease;
}
.tc-hero__scroll-mouse {
	width: 22px;
	height: 34px;
	border: 1.5px solid rgba(255, 255, 255, 0.7);
	border-radius: 12px;
	position: relative;
	background: rgba(255, 255, 255, 0.1);
	backdrop-filter: blur(4px);
}
.tc-hero__scroll-wheel {
	position: absolute;
	top: 6px;
	left: 50%;
	transform: translateX(-50%);
	width: 3px;
	height: 6px;
	background: #E0BD5E;
	border-radius: 2px;
	animation: scroll-wheel 1.8s infinite;
}
@keyframes scroll-wheel {
	0% { opacity: 0; transform: translate(-50%, 0); }
	30% { opacity: 1; }
	100% { opacity: 0; transform: translate(-50%, 14px); }
}

/* Final Reveal Brand Emblem & Tagline (Bottom Center) */
.tc-hero__brand-bottom {
	position: absolute;
	bottom: clamp(2.2rem, 4.8vh, 4rem);
	left: 50%;
	transform: translateX(-50%);
	z-index: 15;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	text-align: center;
	pointer-events: none;
	opacity: 0;
	width: 92%;
	max-width: 920px;
	will-change: transform, opacity;
}

.tc-hero__brand-logo {
	width: clamp(205px, 18vw, 290px);
	height: auto;
	display: block;
	margin: 0 auto;
	filter: drop-shadow(0 6px 22px rgba(0, 0, 0, 0.95)) drop-shadow(0 0 16px rgba(224, 189, 94, 0.45));
}

.tc-hero__brand-tagline {
	font-family: var(--font-heading);
	margin-top: 1.1rem;
	line-height: 1.4;
	text-align: center;
}

h2.tc-hero__tagline-main,
.tc-hero__tagline-main {
	display: block;
	margin: 0;
	padding: 0;
	font-family: var(--font-heading);
	font-size: clamp(1.4rem, 1.18rem + 0.82vw, 2.0rem);
	font-weight: 600;
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: #FFFFFF;
	background: linear-gradient(135deg, #FFFFFF 0%, #F5DE98 40%, #E0BD5E 75%, #BA8527 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	filter: drop-shadow(0 2px 14px rgba(0, 0, 0, 0.95));
	text-shadow: 0 2px 18px rgba(0, 0, 0, 0.9);
	white-space: nowrap;
	line-height: 1.35;
}

.tc-hero__tagline-chunk {
	display: inline;
}

p.tc-hero__tagline-sub,
.tc-hero__tagline-sub {
	display: block;
	margin: 0.45rem 0 0;
	padding: 0;
	font-family: var(--font-heading);
	font-size: clamp(1.15rem, 1.0rem + 0.56vw, 1.62rem);
	font-weight: 500;
	letter-spacing: 0.22em;
	text-transform: uppercase;
	color: #E0BD5E;
	background: linear-gradient(135deg, #F5DE98 0%, #E0BD5E 50%, #C59B27 100%);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	filter: drop-shadow(0 2px 14px rgba(0, 0, 0, 0.95));
	text-shadow: 0 2px 18px rgba(0, 0, 0, 0.9);
	white-space: nowrap;
	line-height: 1.35;
}

@media (max-width: 768px) {
	.tc-hero__brand-bottom {
		bottom: 1.8rem;
		width: 95%;
	}
	.tc-hero__brand-logo {
		width: clamp(170px, 48vw, 230px);
	}
	h2.tc-hero__tagline-main,
	.tc-hero__tagline-main {
		font-size: clamp(0.88rem, 0.72rem + 1.2vw, 1.25rem);
		letter-spacing: 0.08em;
		white-space: normal;
		line-height: 1.4;
	}
	.tc-hero__tagline-chunk {
		display: block;
		white-space: nowrap;
	}
	p.tc-hero__tagline-sub,
	.tc-hero__tagline-sub {
		font-size: clamp(0.82rem, 0.68rem + 1.0vw, 1.15rem);
		letter-spacing: 0.16em;
		margin-top: 0.35rem;
		white-space: nowrap;
		line-height: 1.35;
	}
}

/* ==========================================================================
   01.5 — VIDEO SHOWCASE SECTION (Desktop & Mobile MP4)
   ========================================================================== */
.tc-section-video {
	position: relative;
	width: 100%;
	background-color: #040C16;
	overflow: hidden;
	z-index: 1;
	-webkit-transform: translate3d(0, 0, 0);
	transform: translate3d(0, 0, 0);
}

.tc-video__container {
	position: relative;
	width: 100%;
	height: 100vh;
	min-height: 520px;
	overflow: hidden;
	display: flex;
	align-items: center;
	justify-content: center;
}

.tc-video-player {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

/* Responsive video switching */
@media (max-width: 768px) {
	.tc-video-player--desktop {
		display: none !important;
	}
	.tc-video-player--mobile {
		display: block !important;
		height: 100vh;
		min-height: 540px;
	}
}

@media (min-width: 769px) {
	.tc-video-player--mobile {
		display: none !important;
	}
	.tc-video-player--desktop {
		display: block !important;
		height: 100vh;
	}
}

.tc-video__controls {
	position: absolute;
	bottom: clamp(1.5rem, 3vw, 3rem);
	right: clamp(1.5rem, 3vw, 3.5rem);
	z-index: 10;
}

.tc-video__btn {
	display: inline-flex;
	align-items: center;
	gap: 0.6rem;
	padding: 0.65rem 1.35rem;
	background: rgba(6, 17, 30, 0.75);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	border: 1px solid rgba(224, 189, 94, 0.4);
	color: #FFFFFF;
	font-family: var(--font-body);
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	cursor: pointer;
	border-radius: 2px;
	transition: all .3s ease;
	box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}
.tc-video__btn:hover {
	background: var(--tc-primary);
	border-color: var(--tc-primary);
	box-shadow: 0 6px 20px rgba(197, 155, 39, 0.4);
	transform: translateY(-1px);
}
.tc-video__btn svg {
	width: 16px;
	height: 16px;
}

/* ==========================================================================
   Play Button & Radar Waves (Desktop: Middle Right / Mobile: Bottom Center)
   ========================================================================== */
.tc-video__play-wrap {
	position: absolute;
	top: 50%;
	right: clamp(1.8rem, 4vw, 4rem);
	transform: translateY(-50%);
	z-index: 12;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.85rem;
	cursor: pointer;
}

.tc-video__play-label {
	display: block;
	color: #FFFFFF;
	font-family: var(--font-body);
	font-size: clamp(0.78rem, 0.72rem + 0.18vw, 0.86rem);
	font-weight: 600;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	text-align: center;
	white-space: nowrap;
	text-shadow: 0 2px 8px rgba(0, 0, 0, 0.95), 0 1px 3px rgba(0, 0, 0, 0.95);
	transition: all 0.3s ease;
	pointer-events: auto;
}

.tc-video__play-wrap:hover .tc-video__play-label {
	color: #FFE082;
	text-shadow: 0 0 12px rgba(255, 224, 130, 0.85), 0 2px 8px rgba(0, 0, 0, 0.95);
	transform: translateY(1px);
}

.tc-video__play-btn {
	position: relative;
	width: clamp(64px, 5.2vw, 76px);
	height: clamp(64px, 5.2vw, 76px);
	border-radius: 50%;
	background: rgba(228, 92, 22, 0.28);
	backdrop-filter: blur(3px);
	-webkit-backdrop-filter: blur(3px);
	border: 1.5px solid rgba(255, 255, 255, 0.85);
	color: #FFFFFF;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35), 0 0 15px rgba(228, 92, 22, 0.3);
	transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
	outline: none;
	padding: 0;
}

.tc-video__play-btn svg {
	width: clamp(24px, 2vw, 28px);
	height: clamp(24px, 2vw, 28px);
	fill: #FFFFFF;
	margin: 0 !important;
	display: block;
	transition: transform 0.3s ease;
	filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.35));
}

.tc-video__play-wrap:hover .tc-video__play-btn {
	transform: scale(1.08);
	background: rgba(235, 95, 25, 0.52);
	border-color: #FFFFFF;
	box-shadow: 0 0 30px rgba(245, 120, 45, 0.7);
}

.tc-video__play-wrap:hover .tc-video__play-btn svg {
	transform: scale(1.1);
}

/* Radar Pulse Ripple Rings (Orange Luxury Glow) */
.tc-video__play-radar {
	position: absolute;
	top: 50%;
	left: 50%;
	width: 100%;
	height: 100%;
	border-radius: 50%;
	border: 1.5px solid rgba(235, 105, 35, 0.85);
	pointer-events: none;
	transform: translate(-50%, -50%) scale(1);
	animation: tcRadarPulse 3s cubic-bezier(0.2, 0.6, 0.35, 1) infinite;
}

.tc-video__play-radar--1 {
	animation-delay: 0s;
}

.tc-video__play-radar--2 {
	animation-delay: 1s;
}

.tc-video__play-radar--3 {
	animation-delay: 2s;
}

@keyframes tcRadarPulse {
	0% {
		transform: translate(-50%, -50%) scale(1);
		opacity: 0.9;
		border-color: rgba(245, 120, 45, 0.9);
	}
	50% {
		opacity: 0.45;
	}
	100% {
		transform: translate(-50%, -50%) scale(2.3);
		opacity: 0;
		border-color: rgba(235, 105, 35, 0);
	}
}

/* Mobile: Nút nằm bottom center của section video */
@media (max-width: 768px) {
	.tc-video__play-wrap {
		top: auto;
		right: auto;
		left: 50%;
		bottom: clamp(2.4rem, 7vh, 4.2rem);
		transform: translateX(-50%);
		gap: 0.55rem;
		width: max-content;
	}

	.tc-video__play-btn {
		width: 56px;
		height: 56px;
	}

	.tc-video__play-btn svg {
		width: 22px;
		height: 22px;
	}

	.tc-video__play-label {
		font-size: 0.72rem;
		letter-spacing: 0.05em;
	}

	.tc-video__controls {
		bottom: 1rem;
		right: 1rem;
	}

	.tc-video__btn {
		padding: 0.45rem 0.85rem;
		font-size: 0.68rem;
	}
}

/* ==========================================================================
   VIDEO POPUP MODAL (YouTube Lightbox)
   ========================================================================== */
.tc-video-modal {
	position: fixed;
	inset: 0;
	z-index: 99999;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: clamp(0.75rem, 2vw, 1.5rem);
	opacity: 0;
	visibility: hidden;
	pointer-events: none;
	transition: opacity 0.35s ease, visibility 0.35s ease;
}

.tc-video-modal.is-open {
	opacity: 1;
	visibility: visible;
	pointer-events: auto;
}

.tc-video-modal__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(3, 10, 18, 0.88);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	cursor: pointer;
}

.tc-video-modal__dialog {
	position: relative;
	width: min(94vw, 1180px);
	border-radius: 10px;
	border: 1px solid rgba(255, 224, 130, 0.4);
	box-shadow: 0 25px 60px rgba(0, 0, 0, 0.85), 0 0 40px rgba(197, 155, 39, 0.2);
	background: #000000;
	overflow: visible;
	transform: scale(0.92);
	transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
	z-index: 2;
}

.tc-video-modal.is-open .tc-video-modal__dialog {
	transform: scale(1);
}

.tc-video-modal__close {
	position: absolute;
	top: -46px;
	right: 0;
	width: 38px;
	height: 38px;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.12);
	border: 1px solid rgba(255, 224, 130, 0.6);
	color: #FFFFFF;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: center;
	transition: all 0.25s ease;
	outline: none;
	padding: 0;
}

@media (max-height: 650px) {
	.tc-video-modal__close {
		top: 10px;
		right: 10px;
		background: rgba(4, 12, 22, 0.75);
		z-index: 5;
	}
}

.tc-video-modal__close:hover {
	background: #FFE082;
	color: #040C16;
	transform: rotate(90deg);
}

.tc-video-modal__close svg {
	width: 18px;
	height: 18px;
}

.tc-video-modal__media {
	position: relative;
	width: 100%;
	padding-top: 56.25%; /* 16:9 Aspect Ratio */
	border-radius: 8px;
	overflow: hidden;
	background: #000000;
}

.tc-video-modal__media iframe {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	border: 0;
}

@media (max-width: 768px) {
	.tc-video-modal {
		padding: 1rem;
	}
	.tc-video-modal__dialog {
		width: 100%;
	}
	.tc-video-modal__close {
		top: -42px;
		right: 0;
		width: 34px;
		height: 34px;
	}
}

@media (max-width: 768px) {
	.tc-hero-pin-wrapper,
	.tc-hero {
		height: 100vh;
		height: 100dvh;
	}

	.tc-hero__scroll-indicator {
		display: none !important;
	}

	.tc-hero__title {
		font-size: clamp(1.85rem, 1.45rem + 2.6vw, 2.6rem);
		letter-spacing: 0.04em;
		line-height: 1.15;
		margin-bottom: 1.1rem;
	}

	.tc-hero__stage--intro {
		padding-inline: clamp(0.5rem, 2vw, 1.25rem);
	}

	.tc-hero__lead {
		font-size: clamp(0.85rem, 0.41rem + 1.95vw, 1.35rem);
		line-height: 1.6;
		width: 100%;
		max-width: 100%;
		font-weight: 700;
	}

	.tc-hero__lead span {
		white-space: normal;
		display: block;
		text-align: center;
		font-weight: 700;
		line-height: 1.6;
	}

	.tc-hero__lead-sub {
		font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
		font-size: clamp(0.85rem, 0.41rem + 1.95vw, 1.35rem);
		letter-spacing: 0.05em;
		white-space: normal;
		line-height: 1.62;
		margin-top: 0.75rem;
		display: block;
		text-align: center;
		font-weight: 700 !important;
		color: #FFDF85;
		text-shadow: 0 2px 10px rgba(0, 0, 0, 0.95), 0 1px 3px rgba(0, 0, 0, 1);
		-webkit-text-stroke: 0.35px currentColor;
	}

	.tc-hero__quote-card { padding: 1.8rem 1.4rem; }

	/* Đảm bảo line-curtain và guide-line hiển thị nổi bật hiệu ứng line tỏa màu trên mobile */
	.tc-hero__guide-line {
		width: 3px !important;
		box-shadow: 0 0 20px rgba(224, 189, 94, 1), 0 0 40px rgba(197, 155, 39, 0.9) !important;
	}

	.tc-hero__line-curtain {
		display: block !important;
		z-index: 3 !important;
	}

	.tc-hero__seq-card {
		box-shadow: none !important;
		border-radius: 0 !important;
	}

	/* Mobile Hero Images Switching */
	.tc-hero__bg--crescent {
		background-image: var(--hero-bg-mob, url('../img/Khu-Ho-Bn-Mobile.webp')) !important;
	}
	.tc-hero__seq-card--1 {
		background-image: var(--hero-bg-mob, url('../img/tong-quang-triton-crown-03-mobile.webp')) !important;
	}
	.tc-hero__seq-card--2 {
		background-image: var(--hero-bg-mob, url('../img/tong-quang-triton-crown-04-mobile.webp')) !important;
	}
	.tc-hero__seq-card--3 {
		background-image: var(--hero-bg-mob, url('../img/tong-quang-triton-crown-01-mobile.webp')) !important;
	}
}

/* ==========================================================================
   HERO RESPONSIVE (2K & 4K Ultra-Wide / UHD)
   ========================================================================== */

/* 2K Screens (QHD / 2560x1440 & Ultra-wides) */
@media (min-width: 2048px) {
	.tc-hero__text-box {
		max-width: 1400px;
	}
	.tc-hero__title {
		font-size: clamp(3.8rem, 3.2vw, 5.8rem);
		letter-spacing: 0.07em;
	}
	.tc-hero__lead {
		max-width: 1100px;
		font-size: 1.45rem;
		line-height: 1.9;
	}
	.tc-hero__lead-sub {
		font-size: 1.35rem;
		letter-spacing: 0.1em;
	}
	.tc-hero__brand-bottom {
		max-width: 1200px;
		bottom: clamp(3rem, 5vh, 4.5rem);
	}
	.tc-hero__brand-logo {
		width: clamp(300px, 15vw, 380px);
	}
	h2.tc-hero__tagline-main,
	.tc-hero__tagline-main {
		font-size: 2.3rem;
		letter-spacing: 0.18em;
	}
	p.tc-hero__tagline-sub,
	.tc-hero__tagline-sub {
		font-size: 1.8rem;
		letter-spacing: 0.24em;
	}
	.tc-hero__bottom-overlay {
		height: clamp(360px, 45vh, 560px);
	}
	.tc-hero__scroll-indicator {
		font-size: 0.88rem;
		gap: 0.8rem;
	}
	.tc-hero__scroll-mouse {
		width: 26px;
		height: 40px;
	}
	.tc-hero__scroll-wheel {
		width: 3.5px;
		height: 7px;
	}
	.tc-video__controls {
		bottom: 3.5rem;
		right: 4.5rem;
	}
	.tc-video__btn {
		padding: 0.85rem 1.8rem;
		font-size: 0.88rem;
	}
	.tc-video__btn svg {
		width: 19px;
		height: 19px;
	}
}

/* 4K Screens (UHD / 3840x2160) */
@media (min-width: 3200px) {
	.tc-hero__text-box {
		max-width: 2000px;
	}
	.tc-hero__title {
		font-size: clamp(5.2rem, 3.6vw, 7.8rem);
		letter-spacing: 0.08em;
	}
	.tc-hero__lead {
		max-width: 1600px;
		font-size: 1.85rem;
		line-height: 2.0;
	}
	.tc-hero__lead-sub {
		font-size: 1.7rem;
		letter-spacing: 0.12em;
	}
	.tc-hero__brand-bottom {
		max-width: 1600px;
		bottom: clamp(4.5rem, 6vh, 6.5rem);
	}
	.tc-hero__brand-logo {
		width: clamp(420px, 14vw, 540px);
	}
	h2.tc-hero__tagline-main,
	.tc-hero__tagline-main {
		font-size: 3.0rem;
		letter-spacing: 0.20em;
	}
	p.tc-hero__tagline-sub,
	.tc-hero__tagline-sub {
		font-size: 2.4rem;
		letter-spacing: 0.26em;
	}
	.tc-hero__bottom-overlay {
		height: clamp(540px, 46vh, 900px);
	}
	.tc-hero__scroll-indicator {
		font-size: 1.15rem;
		gap: 1.1rem;
		bottom: 5rem;
	}
	.tc-hero__scroll-mouse {
		width: 34px;
		height: 52px;
		border-width: 2px;
		border-radius: 16px;
	}
	.tc-hero__scroll-wheel {
		width: 4.5px;
		height: 9px;
		border-radius: 3px;
	}
	.tc-video__controls {
		bottom: 5rem;
		right: 6.5rem;
	}
	.tc-video__btn {
		padding: 1.15rem 2.4rem;
		font-size: 1.1rem;
		gap: 0.85rem;
	}
	.tc-video__btn svg {
		width: 24px;
		height: 24px;
	}
}