/* Ken Burns ギャラリー — 3カラムグリッド */
.kenburns-footer-block {
	position: relative;
	width: 100%;
}

.kenburns-hero {
	position: relative;
	min-height: 72vh;
	overflow: hidden;
	background: #000;
	opacity: 0;
	transition: opacity 1.6s ease-out;
}

.kenburns-hero.is-hero-visible {
	opacity: 1;
}

.kenburns-grid {
	display: grid;
	grid-template-columns: 1fr min(400px, 34%) 1fr;
	min-height: 72vh;
}

.kenburns-col {
	position: relative;
	overflow: hidden;
	min-height: 72vh;
}

/* 左右 — Ken Burns */
.kenburns-col-left,
.kenburns-col-right {
	background: #111;
}

.ken-burns-viewport {
	position: absolute;
	inset: 0;
	overflow: hidden;
}

.ken-burns-stage {
	position: absolute;
	inset: 0;
}

.ken-burns-layer {
	position: absolute;
	inset: 0;
	opacity: 0;
	transition: opacity 3.2s ease-in-out;
	pointer-events: none;
	z-index: 0;
}

.ken-burns-layer.is-visible {
	opacity: 1;
	z-index: 1;
}

.ken-burns-layer.is-fading-out {
	opacity: 0;
	z-index: 0;
}

.ken-burns-layer.is-fading-in {
	opacity: 0;
	z-index: 1;
}

.ken-burns-layer.is-fading-in.is-visible {
	opacity: 1;
}

.ken-burns-layer img {
	position: absolute;
	top: 50%;
	left: 50%;
	min-width: 100%;
	min-height: 100%;
	width: auto;
	height: auto;
	max-width: none;
	transform: translate(-50%, -50%) scale(1.12);
	transform-origin: center center;
	will-change: transform, opacity;
	filter: saturate(0.94) contrast(1.02);
	opacity: 1;
	transition: opacity 3.2s ease-in-out;
}

.ken-burns-layer img.kb-running {
	transition: transform linear, opacity 3.2s ease-in-out;
}

.kenburns-col-vignette {
	position: absolute;
	inset: 0;
	pointer-events: none;
	z-index: 2;
}

.kenburns-col-left .kenburns-col-vignette {
	background: linear-gradient(90deg, rgba(0, 0, 0, 0.35) 0%, transparent 55%);
}

.kenburns-col-right .kenburns-col-vignette {
	background: linear-gradient(270deg, rgba(0, 0, 0, 0.35) 0%, transparent 55%);
}

/* 中央 — 黒から白グラデーション */
.kenburns-col-center {
	display: flex;
	flex-direction: column;
	justify-content: flex-end;
	background: #000;
}

.kenburns-center-gradient {
	position: absolute;
	inset: 0;
	background: linear-gradient(180deg, #000000 0%, #3a3a3a 35%, #bdbdbd 68%, #ffffff 100%);
	z-index: 0;
}

.kenburns-ui {
	position: relative;
	z-index: 1;
	padding: 2rem 1.75rem 2.25rem;
	color: #fff;
	opacity: 0;
	transform: translateY(12px);
	transition: opacity 1.2s ease-out 0.4s, transform 1.2s ease-out 0.4s;
}

.kenburns-hero.is-hero-visible .kenburns-ui {
	opacity: 1;
	transform: translateY(0);
}

.kenburns-caption .series {
	font-size: 0.68rem;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.72);
	margin: 0 0 0.35rem;
	mix-blend-mode: difference;
}

.kenburns-caption .caption-title,
.kenburns-caption .caption-sub {
	transition: opacity 0.7s ease, transform 0.7s ease, color 0.7s ease;
	opacity: 1;
	transform: translateY(0);
}

.kenburns-caption.is-caption-fading .caption-title,
.kenburns-caption.is-caption-fading .caption-sub {
	opacity: 0;
	transform: translateY(10px);
}

.kenburns-caption .caption-title {
	font-size: clamp(1.1rem, 2.2vw, 1.65rem);
	font-weight: 600;
	margin: 0 0 0.35rem;
	color: #fff;
	text-shadow: 0 2px 14px rgba(0, 0, 0, 0.35);
}

.kenburns-caption .caption-sub {
	font-size: 0.82rem;
	line-height: 1.55;
	max-width: 100%;
	margin: 0;
	color: rgba(255, 255, 255, 0.9);
	text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}

.kenburns-col-center.is-caption-light .caption-title {
	color: #1a1a1a;
	text-shadow: none;
}

.kenburns-col-center.is-caption-light .caption-sub {
	color: rgba(0, 0, 0, 0.72);
	text-shadow: none;
}

.kenburns-col-center.is-caption-light .series {
	color: rgba(0, 0, 0, 0.45);
	mix-blend-mode: normal;
}

.kenburns-controls {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	margin-top: 1.1rem;
	flex-wrap: wrap;
}

.kenburns-nav {
	display: flex;
	gap: 0.45rem;
}

.kenburns-nav button {
	appearance: none;
	border: 1px solid rgba(255, 255, 255, 0.35);
	background: rgba(0, 0, 0, 0.25);
	color: #fff;
	width: 2.2rem;
	height: 2.2rem;
	border-radius: 50%;
	cursor: pointer;
	font-size: 1rem;
	line-height: 1;
	transition: background 0.25s ease, border-color 0.25s ease, opacity 0.25s ease, color 0.25s ease;
}

.kenburns-col-center.is-caption-light .kenburns-nav button {
	border-color: rgba(0, 0, 0, 0.25);
	background: rgba(255, 255, 255, 0.5);
	color: #111;
}

.kenburns-nav button:hover {
	background: rgba(255, 255, 255, 0.2);
	border-color: rgba(255, 255, 255, 0.6);
}

.kenburns-col-center.is-caption-light .kenburns-nav button:hover {
	background: rgba(0, 0, 0, 0.08);
	border-color: rgba(0, 0, 0, 0.4);
}

.kenburns-nav button:disabled {
	opacity: 0.35;
	cursor: default;
}

.kenburns-thumbs {
	display: flex;
	gap: 0.4rem;
	flex-wrap: wrap;
	list-style: none;
	margin: 0;
	padding: 0;
}

.kenburns-thumbs button {
	appearance: none;
	width: 44px;
	height: 44px;
	padding: 0;
	border: 2px solid rgba(255, 255, 255, 0.25);
	border-radius: 3px;
	background-size: cover;
	background-position: center top;
	cursor: pointer;
	opacity: 0.75;
	transition: opacity 0.35s ease, border-color 0.35s ease, transform 0.35s ease;
}

.kenburns-col-center.is-caption-light .kenburns-thumbs button {
	border-color: rgba(0, 0, 0, 0.2);
}

.kenburns-thumbs button:hover,
.kenburns-thumbs button.is-active {
	opacity: 1;
	border-color: rgba(30, 60, 150, 0.75);
	transform: translateY(-2px);
}

.kenburns-counter {
	font-size: 0.72rem;
	color: rgba(255, 255, 255, 0.7);
	letter-spacing: 0.08em;
	transition: opacity 0.5s ease, color 0.5s ease;
}

.kenburns-col-center.is-caption-light .kenburns-counter {
	color: rgba(0, 0, 0, 0.55);
}

.kenburns-counter.is-fading {
	opacity: 0.35;
}

@media only screen and (max-width: 960px) {
	.kenburns-grid {
		grid-template-columns: 1fr;
		grid-template-rows: 38vh auto 38vh;
	}

	.kenburns-col,
	.kenburns-hero {
		min-height: 0;
	}

	.kenburns-col-left,
	.kenburns-col-right {
		min-height: 38vh;
	}

	.kenburns-col-center {
		min-height: auto;
		order: -1;
	}

	.kenburns-center-gradient {
		background: linear-gradient(180deg, #000 0%, #666 45%, #fff 100%);
	}

	.kenburns-ui {
		padding: 1.5rem 1.25rem;
	}
}

@media (prefers-reduced-motion: reduce) {
	.kenburns-hero,
	.kenburns-ui,
	.ken-burns-layer,
	.ken-burns-layer img,
	.kenburns-caption .caption-title,
	.kenburns-caption .caption-sub {
		transition: none;
	}

	.kenburns-hero {
		opacity: 1;
	}

	.kenburns-hero.is-hero-visible .kenburns-ui {
		opacity: 1;
		transform: none;
	}

	.ken-burns-layer img.kb-running {
		transition: none !important;
	}
}