/**
 * V4 — structural layout for km-hero-v3 + km-home-v3-row* (from portal-v3.css).
 * portal-v3.css is not enqueued when UI layer = V4; without these rules the hero
 * slider and genre rails collapse (display:contents / cqi track, scroll-snap).
 * All selectors scoped to .ui-v4. Cosmetic tweaks use V4 palette where obvious.
 */

/* ── Hero V3 (structure) ─────────────────────────────────────────────────── */
.ui-v4 .km-hero-v3 {
	position: relative;
	margin: 0 0 0.5rem;
	overflow: hidden;
	container-type: inline-size;
	container-name: km-hero-v3;
}

.ui-v4 .km-hero-v3__viewport {
	display: flex;
	width: 100%;
	overflow-x: auto;
	overflow-y: hidden;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
	outline: none;
	overscroll-behavior-x: contain;
}

.ui-v4 .km-hero-v3__viewport::-webkit-scrollbar {
	display: none;
}

.ui-v4 .km-hero-v3__track {
	display: contents;
}

.ui-v4 .km-hero-v3__slide {
	flex: 0 0 100%;
	min-width: 100%;
	scroll-snap-align: start;
	scroll-snap-stop: always;
	min-height: clamp(300px, 44vw, 540px);
	position: relative;
	background: #05060c;
	overflow: hidden;
	box-sizing: border-box;
	isolation: isolate;
}

@supports (width: 1cqi) {
	.ui-v4 .km-hero-v3__viewport {
		display: block;
	}

	.ui-v4 .km-hero-v3__track {
		display: flex;
		flex-flow: row nowrap;
		width: max-content;
		min-width: 100%;
	}

	.ui-v4 .km-hero-v3__slide {
		flex: 0 0 100cqi;
		min-width: 100cqi;
		max-width: 100cqi;
		width: 100cqi;
	}
}

.ui-v4 .km-hero-v3__slide::before {
	content: "";
	position: absolute;
	inset: 0;
	background-image: var(--km-hero-poster);
	background-size: cover;
	background-position: center top;
	transform: scale(1.06);
	transform-origin: center top;
	filter: saturate(1.08);
}

.ui-v4 .km-hero-v3__slide::after {
	content: "";
	position: absolute;
	inset: 0;
	background:
		linear-gradient(
			90deg,
			rgba(8, 4, 18, 0.96) 0%,
			rgba(12, 8, 24, 0.82) 36%,
			rgba(18, 10, 28, 0.42) 68%,
			rgba(8, 4, 14, 0.25) 100%
		),
		radial-gradient(ellipse 80% 70% at 20% 50%, var(--v4-hl-14) 0%, transparent 55%),
		radial-gradient(ellipse 60% 50% at 85% 30%, var(--v4-vi-18) 0%, transparent 50%);
	pointer-events: none;
}

.ui-v4 .km-hero-v3__slide-inner {
	position: relative;
	z-index: 1;
	min-height: clamp(280px, 42vw, 520px);
	display: flex;
	align-items: center;
	padding: clamp(1.5rem, 4vw, 3rem) 0;
}

.ui-v4 .km-hero-v3__content {
	max-width: min(42rem, 92vw);
}

.ui-v4 .km-hero-v3__badges-row {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.45rem 0.55rem;
	margin-bottom: 0.55rem;
}

.ui-v4 .km-hero-v3__badge {
	display: inline-block;
	margin-bottom: 0;
	padding: 0.2rem 0.55rem;
	font-size: 0.68rem;
	font-weight: 800;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: #fff;
	border-radius: 4px;
	background: linear-gradient(115deg, var(--km-v3-orange) 0%, var(--km-v3-red) 100%);
	box-shadow: 0 4px 20px var(--km-v3-glow);
}

.ui-v4 .km-hero-v3__pill {
	display: inline-flex;
	align-items: center;
	padding: 0.18rem 0.5rem;
	font-size: 0.65rem;
	font-weight: 800;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.92);
	border-radius: 4px;
	background: rgba(255, 255, 255, 0.1);
	border: 1px solid var(--v4-hl-22);
}

.ui-v4 .km-hero-v3__pill--accent {
	background: var(--v4-pk-12);
	border-color: var(--v4-pk-35);
	color: #e8fff8;
}

.ui-v4 .km-hero-v3__title {
	margin: 0 0 0.45rem;
	font-size: clamp(1.65rem, 4.2vw, 2.75rem);
	font-weight: 800;
	line-height: 1.12;
	letter-spacing: -0.02em;
	color: #fff;
	text-shadow: 0 2px 28px rgba(0, 0, 0, 0.55), 0 0 40px var(--v4-vi-12);
}

.ui-v4 .km-hero-v3__subtitle {
	margin: 0 0 0.55rem;
	font-size: clamp(0.88rem, 1.8vw, 1rem);
	line-height: 1.45;
	color: rgba(244, 236, 255, 0.78);
	font-weight: 500;
	max-width: 38rem;
}

.ui-v4 .km-hero-v3__chips {
	display: flex;
	flex-wrap: wrap;
	gap: 0.35rem 0.45rem;
	margin: 0 0 0.65rem;
}

.ui-v4 .km-hero-v3__chip {
	display: inline-flex;
	align-items: center;
	padding: 0.22rem 0.55rem;
	font-size: 0.7rem;
	font-weight: 700;
	color: rgba(255, 255, 255, 0.88);
	text-decoration: none;
	border-radius: 999px;
	background: var(--v4-vi-28);
	border: 1px solid var(--v4-hl-22);
	transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.ui-v4 .km-hero-v3__chip:hover,
.ui-v4 .km-hero-v3__chip:focus-visible {
	background: var(--v4-vi-28);
	border-color: var(--v4-pk-45);
	color: #fff;
	outline: none;
}

.ui-v4 .km-hero-v3__meta {
	margin: 0 0 0.75rem;
	font-size: 0.9rem;
	color: rgba(255, 255, 255, 0.76);
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.35rem 0;
}

.ui-v4 .km-hero-v3__meta-sep {
	margin: 0 0.35rem;
	opacity: 0.45;
	user-select: none;
}

.ui-v4 .km-hero-v3__story {
	margin: 0 0 1.1rem;
	max-width: 38rem;
}

.ui-v4 .km-hero-v3__story-label {
	margin: 0 0 0.38rem;
	font-size: 0.62rem;
	font-weight: 800;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: var(--v4-hl-62);
}

.ui-v4 .km-hero-v3__story-inner {
	padding: 0.88rem 1.05rem;
	border-radius: var(--km-v3-radius-md);
	background: linear-gradient(145deg, rgba(36, 12, 52, 0.82) 0%, rgba(48, 18, 68, 0.62) 48%, rgba(28, 10, 44, 0.55) 100%);
	border: 1px solid var(--v4-hl-22);
	box-shadow:
		0 12px 40px rgba(0, 0, 0, 0.35),
		inset 0 1px 0 rgba(255, 255, 255, 0.04);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
}

.ui-v4 .km-hero-v3__synopsis {
	margin: 0 0 0.55rem;
	font-size: 0.84rem;
	line-height: 1.68;
	color: rgba(255, 255, 255, 0.72);
	display: -webkit-box;
	-webkit-line-clamp: 5;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.ui-v4 .km-hero-v3__synopsis:last-child {
	margin-bottom: 0;
}

.ui-v4 .km-hero-v3__readmore {
	display: inline-flex;
	align-items: center;
	gap: 0.3rem;
	margin: 0;
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--km-accent2);
	text-decoration: none;
	transition: color 0.2s ease, gap 0.2s ease;
}

.ui-v4 .km-hero-v3__readmore:hover,
.ui-v4 .km-hero-v3__readmore:focus-visible {
	color: #fff;
	gap: 0.45rem;
	outline: none;
}

.ui-v4 .km-hero-v3__readmore:focus-visible {
	box-shadow: 0 0 0 2px var(--v4-hl-45);
	border-radius: 4px;
}

.ui-v4 .km-hero-v3__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.65rem;
	align-items: center;
}

.ui-v4 .km-hero-v3__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.45rem;
	padding: 0.62rem 1.15rem;
	font-size: 0.88rem;
	font-weight: 700;
	border-radius: 999px;
	text-decoration: none;
	transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.ui-v4 .km-hero-v3__btn--primary {
	color: #fff;
	background: linear-gradient(135deg, var(--km-v3-orange) 0%, var(--km-v3-red) 98%);
	box-shadow: 0 6px 28px var(--v4-vi-35), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.ui-v4 .km-hero-v3__btn--primary:hover {
	transform: translateY(-1px);
	box-shadow: 0 10px 36px var(--km-v3-glow), 0 0 0 1px rgba(255, 255, 255, 0.12);
	color: #fff;
}

.ui-v4 .km-hero-v3__btn--ghost {
	color: rgba(255, 255, 255, 0.92);
	background: rgba(255, 255, 255, 0.08);
	border: 1px solid rgba(255, 255, 255, 0.18);
	backdrop-filter: blur(8px);
}

.ui-v4 .km-hero-v3__btn--ghost:hover {
	background: rgba(255, 255, 255, 0.12);
	color: #fff;
}

/* Chỉ hero không có skin V4 x4 — tránh chồng rule với hero.css (.km-x4-hero) */
.ui-v4 .km-hero-v3:not(.km-x4-hero) .km-hero-v3__dots-wrap {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	justify-content: center;
	padding: 0.65rem 0 1rem;
}

.ui-v4 .km-hero-v3:not(.km-x4-hero) .km-hero-v3__dot {
	width: 8px;
	height: 8px;
	padding: 0;
	border: none;
	border-radius: 50%;
	background: rgba(255, 255, 255, 0.28);
	cursor: pointer;
	transition: transform 0.2s ease, background 0.2s ease, width 0.25s ease;
}

.ui-v4 .km-hero-v3:not(.km-x4-hero) .km-hero-v3__dot:hover,
.ui-v4 .km-hero-v3:not(.km-x4-hero) .km-hero-v3__dot:focus-visible {
	background: rgba(255, 255, 255, 0.55);
	outline: none;
}

.ui-v4 .km-hero-v3:not(.km-x4-hero) .km-hero-v3__dot.is-active {
	width: 22px;
	border-radius: 999px;
	background: linear-gradient(90deg, var(--km-v3-orange), var(--km-v3-red));
	box-shadow: 0 0 16px var(--km-v3-glow);
}

/* Trending block spacing under hero */
.ui-v4 .km-home-section--trending-v3 {
	padding-top: 0.35rem;
	padding-bottom: 1.25rem;
}

/* ── Genre rows (rail scroller) ─────────────────────────────────────────── */
.ui-v4 .km-home-v3-rows {
	display: flex;
	flex-direction: column;
	gap: 0;
}

.ui-v4 .km-home-v3-row {
	position: relative;
	padding: 1.35rem 0 1.85rem;
}

.ui-v4 .km-home-v3-row + .km-home-v3-row {
	border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.ui-v4 .km-home-v3-row--band::before {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	background: linear-gradient(
		104deg,
		var(--v4-hl-08) 0%,
		rgba(10, 10, 14, 0.2) 42%,
		var(--v4-vi-12) 100%
	);
	clip-path: polygon(0 12%, 100% 0, 100% 88%, 0 100%);
	pointer-events: none;
	z-index: 0;
}

.ui-v4 .km-home-v3-row .km-container {
	position: relative;
	z-index: 1;
}

.ui-v4 .km-home-v3-row__head {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-end;
	justify-content: space-between;
	gap: 0.5rem 1rem;
	margin-bottom: 0.85rem;
}

.ui-v4 .km-home-v3-row__title {
	margin: 0;
	display: flex;
	align-items: center;
	gap: 0.55rem;
	font-size: clamp(1rem, 2.2vw, 1.18rem);
	font-weight: 800;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: #fff;
}

.ui-v4 .km-home-v3-row__title-mark {
	display: block;
	width: 4px;
	height: 1.15em;
	border-radius: 2px;
	background: linear-gradient(180deg, var(--km-v3-orange) 0%, var(--km-v3-red) 100%);
	box-shadow: 0 0 14px var(--km-v3-glow);
}

.ui-v4 .km-home-v3-row__more {
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	font-size: 0.8rem;
	font-weight: 700;
	letter-spacing: 0.04em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.5);
	text-decoration: none;
	transition: color 0.2s ease, gap 0.2s ease;
}

.ui-v4 .km-home-v3-row__more:hover,
.ui-v4 .km-home-v3-row__more:focus-visible {
	color: #fff;
	gap: 0.5rem;
	outline: none;
}

.ui-v4 .km-home-v3-row__more-ico {
	color: var(--km-v3-orange);
	transition: transform 0.2s ease;
}

.ui-v4 .km-home-v3-row__more:hover .km-home-v3-row__more-ico,
.ui-v4 .km-home-v3-row__more:focus-visible .km-home-v3-row__more-ico {
	transform: translateX(3px);
}

.ui-v4 .km-home-v3-row__scroller {
	position: relative;
	display: flex;
	align-items: stretch;
	gap: 0.35rem;
	margin: 0 -0.25rem;
}

.ui-v4 .km-home-v3-row__viewport {
	flex: 1;
	min-width: 0;
	overflow-x: auto;
	overflow-y: hidden;
	scroll-snap-type: x proximity;
	scroll-padding: 0 0.5rem;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: thin;
	scrollbar-color: var(--v4-hl-40) transparent;
}

.ui-v4 .km-home-v3-row__viewport::-webkit-scrollbar {
	height: 5px;
}

.ui-v4 .km-home-v3-row__viewport::-webkit-scrollbar-thumb {
	background: linear-gradient(90deg, var(--km-v3-orange), var(--km-v3-red));
	border-radius: 99px;
}

.ui-v4 .km-home-v3-row__track {
	--km-x4-rail-gap: 0.85rem;
	display: flex;
	flex-direction: row;
	flex-wrap: nowrap;
	align-items: stretch;
	gap: var(--km-x4-rail-gap);
	padding: 0.2rem 0.5rem 0.65rem;
}

.ui-v4 .km-home-v3-row__track > .km-x4-rail-card {
	scroll-snap-align: start;
	flex-shrink: 0;
}

.ui-v4 .km-home-v3-row__nav {
	flex-shrink: 0;
	align-self: center;
	display: none;
	width: 40px;
	height: 40px;
	align-items: center;
	justify-content: center;
	padding: 0;
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: 50%;
	background: rgba(8, 8, 12, 0.75);
	color: #fff;
	cursor: pointer;
	transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
}

@media (min-width: 900px) {
	.ui-v4 .km-home-v3-row__nav {
		display: flex;
	}

	.ui-v4 .km-home-v3-row__scroller:hover .km-home-v3-row__nav {
		border-color: var(--v4-hl-40);
	}
}

.ui-v4 .km-home-v3-row__nav:hover,
.ui-v4 .km-home-v3-row__nav:focus-visible {
	background: linear-gradient(135deg, var(--v4-hl-28) 0%, var(--v4-vi-28) 100%);
	border-color: rgba(255, 255, 255, 0.2);
	box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
	outline: none;
}