/* ============================================================
   Tonal Bloom (M3E 色调辉光占位系统)
   预设容器几何尺寸避免布局偏移（CLS），配合主题色辉光底色实现平滑图片渐显
   ============================================================ */

.image-bloom-container {
	position: relative;
	overflow: hidden;
	background-color: var(--surface-container-high);
}

.image-bloom-layer {
	position: absolute;
	inset: 0;
	z-index: 1;
	pointer-events: none;
	background: radial-gradient(
		circle at center,
		color-mix(in oklab, var(--primary) 20%, var(--surface-container-high)) 0%,
		var(--surface-container-high) 70%
	);
	filter: blur(var(--image-bloom-blur, 20px));
	opacity: var(--image-bloom-opacity, 0.7);
	transition: opacity var(--image-bloom-duration, var(--m3e-duration-medium)) var(--m3e-easing-standard);
}

.image-bloom-layer--loaded {
	opacity: 0;
	pointer-events: none;
}

.image-bloom-img {
	opacity: 0;
	transition: opacity var(--image-bloom-duration, var(--m3e-duration-medium)) var(--m3e-easing-standard);
}

.image-bloom-img--loaded {
	opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
	.image-bloom-layer,
	.image-bloom-img {
		transition: none !important;
	}
	.image-bloom-img {
		opacity: 1 !important;
	}
	.image-bloom-layer {
		display: none !important;
	}
}