/* Lumina Instagram Feed — Frontend Styles */

.lumina-ig-feed {
	--lumina-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
	--lumina-cols: 4;
	--lumina-cols-tablet: 3;
	--lumina-cols-mobile: 2;
	--lumina-gap: 16px;
	--lumina-radius: 12px;
	--lumina-bg: #ffffff;
	--lumina-text: #1a1a2e;
	--lumina-muted: #6b7280;
	--lumina-accent: #e1306c;
	--lumina-overlay: rgba(0, 0, 0, 0.55);
	--lumina-caption-font: inherit;
	--lumina-meta-font: inherit;
	--lumina-caption-size: 14px;
	--lumina-meta-size: 12px;
	--lumina-caption-lines: 3;
	--lumina-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
	--lumina-aspect: 1 / 1;
	--lumina-image-fit: cover;
	position: relative;
	width: 100%;
	color: var(--lumina-text);
}

.lumina-ig-feed__inner {
	display: grid;
	gap: var(--lumina-gap);
}

/* Grid Layout */
.lumina-ig-layout-grid .lumina-ig-feed__inner {
	grid-template-columns: repeat(var(--lumina-cols), minmax(0, 1fr));
}

/* Masonry via CSS columns */
.lumina-ig-layout-masonry .lumina-ig-feed__inner {
	display: block;
	column-count: var(--lumina-cols);
	column-gap: var(--lumina-gap);
}

.lumina-ig-layout-masonry .lumina-ig-item {
	break-inside: avoid;
	margin-bottom: var(--lumina-gap);
}

/* Carousel */
.lumina-ig-layout-carousel {
	overflow: hidden;
}

.lumina-ig-layout-carousel .lumina-ig-feed__inner {
	display: flex;
	gap: var(--lumina-gap);
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	-ms-overflow-style: none;
	scrollbar-width: none;
}

.lumina-ig-layout-carousel .lumina-ig-feed__inner::-webkit-scrollbar {
	display: none;
}

.lumina-ig-layout-carousel .lumina-ig-item {
	flex: 0 0 calc((100% - (var(--lumina-gap) * (var(--lumina-cols) - 1))) / var(--lumina-cols));
	scroll-snap-align: start;
}

.lumina-ig-nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	z-index: 2;
	width: 40px;
	height: 40px;
	border: none;
	border-radius: 50%;
	background: var(--lumina-accent);
	color: #fff;
	font-size: 22px;
	line-height: 1;
	cursor: pointer;
	opacity: 0.9;
	transition: opacity var(--lumina-transition), transform var(--lumina-transition);
}

.lumina-ig-nav:hover {
	opacity: 1;
	transform: translateY(-50%) scale(1.05);
}

.lumina-ig-nav--prev { left: 8px; }
.lumina-ig-nav--next { right: 8px; }

/* Showcase — hero + grid */
.lumina-ig-layout-showcase .lumina-ig-feed__inner {
	grid-template-columns: repeat(var(--lumina-cols), minmax(0, 1fr));
}

.lumina-ig-layout-showcase .lumina-ig-item--hero {
	grid-column: span 2;
	grid-row: span 2;
}

/* Bento layouts */
.lumina-ig-layout-bento .lumina-ig-feed__inner {
	grid-template-columns: repeat(6, minmax(0, 1fr));
	grid-auto-rows: minmax(120px, auto);
}

.lumina-ig-bento-classic .lumina-ig-item:nth-child(6n+1) { grid-column: span 3; grid-row: span 2; }
.lumina-ig-bento-classic .lumina-ig-item:nth-child(6n+4) { grid-column: span 2; }
.lumina-ig-bento-classic .lumina-ig-item:nth-child(6n+5) { grid-column: span 2; }

.lumina-ig-bento-hero .lumina-ig-item:first-child { grid-column: span 4; grid-row: span 2; }
.lumina-ig-bento-hero .lumina-ig-item:nth-child(n+2) { grid-column: span 2; }

.lumina-ig-bento-wave .lumina-ig-item:nth-child(3n+1) { grid-column: span 2; grid-row: span 2; }
.lumina-ig-bento-wave .lumina-ig-item:nth-child(3n+2) { grid-column: span 4; }
.lumina-ig-bento-wave .lumina-ig-item:nth-child(3n)   { grid-column: span 3; }

/* Mosaic — alternating sizes */
.lumina-ig-layout-mosaic .lumina-ig-feed__inner {
	grid-template-columns: repeat(var(--lumina-cols), minmax(0, 1fr));
}

.lumina-ig-layout-mosaic .lumina-ig-item:nth-child(5n+1) { grid-column: span 2; grid-row: span 2; }
.lumina-ig-layout-mosaic .lumina-ig-item:nth-child(5n+3) { grid-row: span 2; }

/* Feed item */
.lumina-ig-item {
	display: flex;
	flex-direction: column;
	background: var(--lumina-bg);
	border-radius: var(--lumina-radius);
	overflow: hidden;
	box-shadow: var(--lumina-shadow);
	text-decoration: none;
	color: inherit;
	transition: transform var(--lumina-transition), box-shadow var(--lumina-transition);
}

.lumina-ig-item--linked {
	cursor: pointer;
}

.lumina-ig-item__media {
	position: relative;
	overflow: hidden;
	aspect-ratio: var(--lumina-aspect);
}

.lumina-ig-item__image {
	display: block;
	width: 100%;
	height: 100%;
	object-fit: var(--lumina-image-fit);
	transition: transform var(--lumina-transition), filter var(--lumina-transition);
}

.lumina-ig-layout-masonry .lumina-ig-item__media,
.lumina-ig-aspect-original .lumina-ig-item__media {
	aspect-ratio: auto;
}

.lumina-ig-item__badge {
	position: absolute;
	top: 10px;
	right: 10px;
	width: 28px;
	height: 28px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--lumina-overlay);
	color: #fff;
	border-radius: 50%;
	font-size: 10px;
}

.lumina-ig-item__body {
	padding: 14px 16px 16px;
	font-family: var(--lumina-caption-font);
}

.lumina-ig-item__account {
	display: flex;
	align-items: center;
	gap: 4px;
	margin-bottom: 6px;
	font-family: var(--lumina-meta-font);
	font-size: var(--lumina-meta-size);
	color: var(--lumina-accent);
	font-weight: 600;
}

.lumina-ig-item__caption {
	font-size: var(--lumina-caption-size);
	line-height: 1.5;
	display: -webkit-box;
	-webkit-line-clamp: var(--lumina-caption-lines);
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.lumina-ig-item__date {
	display: block;
	margin-top: 8px;
	font-family: var(--lumina-meta-font);
	font-size: var(--lumina-meta-size);
	color: var(--lumina-muted);
}

/* Card styles */
.lumina-ig-card-flat .lumina-ig-item { box-shadow: none; }
.lumina-ig-card-bordered .lumina-ig-item { box-shadow: none; border: 1px solid color-mix(in srgb, var(--lumina-muted) 30%, transparent); }
.lumina-ig-card-glass .lumina-ig-item {
	background: color-mix(in srgb, var(--lumina-bg) 70%, transparent);
	backdrop-filter: blur(12px);
	border: 1px solid color-mix(in srgb, #fff 20%, transparent);
}

/* Hover effects */
.lumina-ig-hover-zoom .lumina-ig-item:hover .lumina-ig-item__image { transform: scale(1.08); }
.lumina-ig-hover-fade .lumina-ig-item:hover { opacity: 0.85; }
.lumina-ig-hover-grayscale .lumina-ig-item__image { filter: grayscale(100%); }
.lumina-ig-hover-grayscale .lumina-ig-item:hover .lumina-ig-item__image { filter: grayscale(0%); }

.lumina-ig-hover-overlay-slide .lumina-ig-item__body {
	position: absolute;
	inset: auto 0 0 0;
	transform: translateY(100%);
	background: var(--lumina-overlay);
	color: #fff;
	transition: transform var(--lumina-transition);
}

.lumina-ig-hover-overlay-slide .lumina-ig-item { position: relative; }
.lumina-ig-hover-overlay-slide .lumina-ig-item:hover .lumina-ig-item__body { transform: translateY(0); }
.lumina-ig-hover-overlay-slide .lumina-ig-item__account { color: #fff; }
.lumina-ig-hover-overlay-slide .lumina-ig-item__date { color: color-mix(in srgb, #fff 70%, transparent); }

.lumina-ig-hover-tilt .lumina-ig-item:hover { transform: perspective(600px) rotateX(2deg) rotateY(-2deg); }

/* Load animations */
.lumina-ig-anim-stagger-fade .lumina-ig-item {
	opacity: 0;
	animation: luminaFadeIn 0.6s ease forwards;
	animation-delay: calc(var(--lumina-item-index) * 0.08s);
}

.lumina-ig-anim-stagger-scale .lumina-ig-item {
	opacity: 0;
	transform: scale(0.92);
	animation: luminaScaleIn 0.5s ease forwards;
	animation-delay: calc(var(--lumina-item-index) * 0.07s);
}

@keyframes luminaFadeIn {
	to { opacity: 1; }
}

@keyframes luminaScaleIn {
	to { opacity: 1; transform: scale(1); }
}

/* Responsive */
@media (max-width: 1024px) {
	.lumina-ig-layout-grid .lumina-ig-feed__inner,
	.lumina-ig-layout-showcase .lumina-ig-feed__inner,
	.lumina-ig-layout-mosaic .lumina-ig-feed__inner {
		grid-template-columns: repeat(var(--lumina-cols-tablet), minmax(0, 1fr));
	}

	.lumina-ig-layout-masonry .lumina-ig-feed__inner {
		column-count: var(--lumina-cols-tablet);
	}

	.lumina-ig-layout-carousel .lumina-ig-item {
		flex-basis: calc((100% - (var(--lumina-gap) * (var(--lumina-cols-tablet) - 1))) / var(--lumina-cols-tablet));
	}

	.lumina-ig-layout-showcase .lumina-ig-item--hero {
		grid-column: span 1;
		grid-row: span 1;
	}
}

@media (max-width: 640px) {
	.lumina-ig-layout-grid .lumina-ig-feed__inner,
	.lumina-ig-layout-showcase .lumina-ig-feed__inner,
	.lumina-ig-layout-mosaic .lumina-ig-feed__inner,
	.lumina-ig-layout-bento .lumina-ig-feed__inner {
		grid-template-columns: repeat(var(--lumina-cols-mobile), minmax(0, 1fr));
	}

	.lumina-ig-layout-masonry .lumina-ig-feed__inner {
		column-count: var(--lumina-cols-mobile);
	}

	.lumina-ig-layout-carousel .lumina-ig-item {
		flex-basis: calc((100% - (var(--lumina-gap) * (var(--lumina-cols-mobile) - 1))) / var(--lumina-cols-mobile));
	}

	.lumina-ig-layout-bento .lumina-ig-item,
	.lumina-ig-layout-mosaic .lumina-ig-item {
		grid-column: span 1 !important;
		grid-row: span 1 !important;
	}
}

.lumina-ig-error {
	padding: 12px 16px;
	background: #fef2f2;
	border: 1px solid #fecaca;
	border-radius: 8px;
	color: #991b1b;
	font-size: 14px;
}