/**
 * Frontend Stylesheet for Photo Gallery Pro
 * Supporting 5 Layouts (Grid, Masonry, Slideshow, Justified, Hero Albums), Filter Bar & Lightbox.
 */

:root {
	--pgp-accent: #2563eb;
	--pgp-accent-hover: #1d4ed8;
	--pgp-card-bg: #ffffff;
	--pgp-card-border: #e2e8f0;
	--pgp-card-radius: 12px;
	--pgp-text: #0f172a;
	--pgp-text-muted: #64748b;
	--pgp-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
	--pgp-shadow-hover: 0 12px 24px -5px rgba(0, 0, 0, 0.15);
	--pgp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pgp-gallery-wrapper {
	width: 100%;
	margin: 24px 0;
	box-sizing: border-box;
}

/* ============================================================================
   CATEGORY FILTER BAR
   ============================================================================ */
.pgp-filter-bar {
	display: flex;
	gap: 10px;
	flex-wrap: wrap;
	margin-bottom: 28px;
}

.pgp-filter-btn {
	background: #f1f5f9;
	color: var(--pgp-text);
	border: 1px solid #cbd5e1;
	padding: 8px 18px;
	border-radius: 20px;
	font-size: 0.9rem;
	font-weight: 600;
	cursor: pointer;
	transition: var(--pgp-transition);
}

.pgp-filter-btn:hover,
.pgp-filter-btn.pgp-active {
	background: var(--pgp-accent);
	color: #ffffff;
	border-color: var(--pgp-accent);
	box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

/* ============================================================================
   FULL HERO SHOWCASE + ALBUM CARDS LAYOUT (hero_albums)
   ============================================================================ */
.pgp-hero-albums-layout {
	display: flex;
	flex-direction: column;
	gap: 40px;
	width: 100%;
}

.pgp-full-hero-container {
	background: #0f172a;
	border-radius: 16px;
	padding: 24px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
	color: #ffffff;
	position: relative;
	overflow: hidden;
}

.pgp-hero-header {
	margin-bottom: 20px;
	border-bottom: 1px solid rgba(255, 255, 255, 0.1);
	padding-bottom: 14px;
}

.pgp-hero-header-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	background: rgba(37, 99, 235, 0.25);
	color: #60a5fa;
	border: 1px solid rgba(96, 165, 250, 0.4);
	padding: 4px 12px;
	border-radius: 20px;
	font-size: 0.75rem;
	font-weight: 700;
	letter-spacing: 0.05em;
	margin-bottom: 6px;
}

.pgp-hero-heading {
	color: #ffffff;
	font-size: 1.6rem;
	font-weight: 800;
	margin: 0;
}

.pgp-hero-carousel-wrapper {
	position: relative;
	width: 100%;
	min-height: 440px;
	border-radius: 12px;
	overflow: hidden;
	background: #020617;
}

.pgp-hero-slides {
	position: relative;
	width: 100%;
	height: 480px;
}

.pgp-hero-slide {
	position: absolute;
	inset: 0;
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
}

.pgp-hero-slide.pgp-active-slide {
	opacity: 1;
	visibility: visible;
}

.pgp-hero-media {
	position: relative;
	width: 100%;
	height: 100%;
	cursor: pointer;
}

.pgp-hero-media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform 0.5s ease;
}

.pgp-hero-media:hover img {
	transform: scale(1.04);
}

.pgp-hero-overlay {
	position: absolute;
	inset: 0;
	background: linear-gradient(to top, rgba(2, 6, 23, 0.95) 0%, rgba(2, 6, 23, 0.3) 50%, transparent 100%);
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	padding: 24px 30px;
}

.pgp-hero-meta {
	max-width: 80%;
}

.pgp-hero-album-tag {
	display: inline-block;
	background: var(--pgp-accent);
	color: #ffffff;
	font-size: 0.8rem;
	font-weight: 700;
	padding: 4px 12px;
	border-radius: 6px;
	margin-bottom: 8px;
}

.pgp-hero-caption {
	font-size: 1.15rem;
	font-weight: 600;
	color: #ffffff;
	margin: 0 0 6px 0;
	text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

.pgp-hero-date {
	font-size: 0.85rem;
	color: #94a3b8;
	display: flex;
	align-items: center;
	gap: 4px;
}

.pgp-hero-zoom-btn {
	background: rgba(255, 255, 255, 0.2);
	backdrop-filter: blur(6px);
	color: #ffffff;
	border: 1px solid rgba(255, 255, 255, 0.3);
	width: 52px;
	height: 52px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: var(--pgp-transition);
}

.pgp-hero-zoom-btn:hover {
	background: var(--pgp-accent);
	transform: scale(1.1);
}

.pgp-hero-nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	background: rgba(15, 23, 42, 0.7);
	backdrop-filter: blur(4px);
	color: #ffffff;
	border: 1px solid rgba(255, 255, 255, 0.2);
	font-size: 22px;
	padding: 10px 16px;
	cursor: pointer;
	border-radius: 8px;
	z-index: 10;
	transition: var(--pgp-transition);
}

.pgp-hero-nav:hover {
	background: var(--pgp-accent);
}

.pgp-hero-prev { left: 16px; }
.pgp-hero-next { right: 16px; }

.pgp-hero-counter {
	position: absolute;
	top: 16px;
	right: 16px;
	background: rgba(15, 23, 42, 0.85);
	backdrop-filter: blur(4px);
	color: #ffffff;
	font-size: 0.85rem;
	font-weight: 700;
	padding: 4px 12px;
	border-radius: 20px;
	border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ALBUMS DIRECTORY SECTION (BELOW HERO) */
.pgp-section-header {
	margin-bottom: 20px;
	border-bottom: 2px solid #f1f5f9;
	padding-bottom: 12px;
}

.pgp-section-title {
	font-size: 1.35rem;
	font-weight: 700;
	color: var(--pgp-text);
	margin: 0;
	display: flex;
	align-items: center;
	gap: 8px;
}

.pgp-albums-grid {
	display: grid;
	gap: 24px;
}

.pgp-album-card {
	background: var(--pgp-card-bg);
	border: 1px solid var(--pgp-card-border);
	border-radius: var(--pgp-card-radius);
	overflow: hidden;
	box-shadow: var(--pgp-shadow);
	transition: var(--pgp-transition);
	cursor: pointer;
	display: flex;
	flex-direction: column;
}

.pgp-album-card:hover {
	transform: translateY(-5px);
	box-shadow: var(--pgp-shadow-hover);
	border-color: var(--pgp-accent);
}

.pgp-album-cover {
	position: relative;
	width: 100%;
	height: 210px;
	background: #0f172a;
	overflow: hidden;
}

.pgp-album-cover img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: var(--pgp-transition);
}

.pgp-album-card:hover .pgp-album-cover img {
	transform: scale(1.08);
}

.pgp-album-count-badge {
	position: absolute;
	top: 12px;
	right: 12px;
	background: rgba(15, 23, 42, 0.85);
	backdrop-filter: blur(4px);
	color: #ffffff;
	font-size: 0.8rem;
	font-weight: 700;
	padding: 4px 10px;
	border-radius: 20px;
	border: 1px solid rgba(255, 255, 255, 0.2);
}

.pgp-album-body {
	padding: 20px;
	display: flex;
	flex-direction: column;
	flex-grow: 1;
}

.pgp-album-title {
	font-size: 1.15rem;
	font-weight: 700;
	margin: 0 0 6px 0;
	color: var(--pgp-text);
}

.pgp-album-desc {
	font-size: 0.88rem;
	color: var(--pgp-text-muted);
	margin: 0 0 12px 0;
	line-height: 1.4;
}

.pgp-album-meta-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-top: auto;
	padding-top: 10px;
}

.pgp-btn-open-album {
	margin-top: 14px;
	background: #eff6ff;
	color: var(--pgp-accent);
	border: none;
	padding: 10px 16px;
	border-radius: 8px;
	font-weight: 700;
	font-size: 0.85rem;
	cursor: pointer;
	transition: var(--pgp-transition);
	align-self: flex-start;
	width: 100%;
	text-align: center;
}

.pgp-album-card:hover .pgp-btn-open-album {
	background: var(--pgp-accent);
	color: #ffffff;
}

/* ============================================================================
   GRID / MASONRY / SLIDESHOW / JUSTIFIED LAYOUTS
   ============================================================================ */
.pgp-cols-1 { grid-template-columns: repeat(1, 1fr); }
.pgp-cols-2 { grid-template-columns: repeat(2, 1fr); }
.pgp-cols-3 { grid-template-columns: repeat(3, 1fr); }
.pgp-cols-4 { grid-template-columns: repeat(4, 1fr); }
.pgp-cols-5 { grid-template-columns: repeat(5, 1fr); }
.pgp-cols-6 { grid-template-columns: repeat(6, 1fr); }

.pgp-layout-grid .pgp-gallery-container {
	display: grid;
	gap: 20px;
}

@media (max-width: 900px) {
	.pgp-layout-grid .pgp-gallery-container,
	.pgp-albums-grid {
		grid-template-columns: repeat(2, 1fr) !important;
	}
}

@media (max-width: 540px) {
	.pgp-layout-grid .pgp-gallery-container,
	.pgp-albums-grid {
		grid-template-columns: 1fr !important;
	}
}

.pgp-card {
	background: var(--pgp-card-bg);
	border: 1px solid var(--pgp-card-border);
	border-radius: var(--pgp-card-radius);
	overflow: hidden;
	box-shadow: var(--pgp-shadow);
	transition: var(--pgp-transition);
	cursor: pointer;
	position: relative;
}

.pgp-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--pgp-shadow-hover);
}

.pgp-card-media {
	position: relative;
	width: 100%;
	overflow: hidden;
}

.pgp-layout-grid .pgp-card-media {
	padding-top: 75%;
}

.pgp-card-media img {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: var(--pgp-transition);
}

.pgp-card:hover .pgp-card-media img {
	transform: scale(1.06);
}

.pgp-card-overlay {
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, 0.35);
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	transition: var(--pgp-transition);
}

.pgp-card:hover .pgp-card-overlay {
	opacity: 1;
}

.pgp-zoom-icon {
	color: #ffffff;
	background: rgba(37, 99, 235, 0.9);
	width: 48px;
	height: 48px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.pgp-card-info {
	padding: 14px;
}

.pgp-card-caption-text {
	font-size: 0.92rem;
	font-weight: 600;
	margin: 0 0 6px 0;
	color: var(--pgp-text);
}

.pgp-card-date {
	font-size: 0.85rem;
	color: var(--pgp-text-muted);
	display: flex;
	align-items: center;
	gap: 4px;
}

.pgp-card-cat {
	display: inline-block;
	font-size: 0.75rem;
	background: #eff6ff;
	color: var(--pgp-accent);
	padding: 2px 8px;
	border-radius: 4px;
	margin-top: 6px;
	font-weight: 600;
}

/* LIGHTBOX MODAL */
.pgp-lightbox-modal {
	display: none;
	position: fixed;
	inset: 0;
	z-index: 999999;
	align-items: center;
	justify-content: center;
}

.pgp-lightbox-modal.pgp-active {
	display: flex;
}

.pgp-lightbox-backdrop {
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, 0.9);
	backdrop-filter: blur(8px);
}

.pgp-lightbox-content {
	position: relative;
	z-index: 1000000;
	max-width: 90%;
	max-height: 90vh;
	display: flex;
	flex-direction: column;
	align-items: center;
}

.pgp-lightbox-stage img {
	max-width: 100%;
	max-height: 70vh;
	object-fit: contain;
	border-radius: 8px;
	box-shadow: 0 20px 40px rgba(0,0,0,0.6);
}

.pgp-lightbox-caption-bar {
	margin-top: 15px;
	color: #ffffff;
	text-align: center;
	max-width: 700px;
}

.pgp-lightbox-caption-bar h3 {
	margin: 0 0 6px 0;
	color: #ffffff;
}

.pgp-lightbox-caption-bar p {
	color: #cbd5e1;
	font-size: 0.95rem;
	margin: 6px 0 0 0;
}

.pgp-lightbox-close {
	position: absolute;
	top: -45px;
	right: 0;
	background: transparent;
	border: none;
	color: #ffffff;
	font-size: 38px;
	cursor: pointer;
}

.pgp-lightbox-nav {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	background: rgba(255, 255, 255, 0.2);
	color: #ffffff;
	border: none;
	font-size: 28px;
	padding: 12px 18px;
	cursor: pointer;
	border-radius: 50%;
	transition: var(--pgp-transition);
}

.pgp-lightbox-nav:hover {
	background: var(--pgp-accent);
}

.pgp-lightbox-prev { left: -70px; }
.pgp-lightbox-next { right: -70px; }

@media (max-width: 768px) {
	.pgp-lightbox-prev { left: 10px; }
	.pgp-lightbox-next { right: 10px; }
}