/* Enhanced Catalog Styles */
:root {
	--mrt-primary: #2563eb;
	--mrt-primary-hover: #1d4ed8;
	--mrt-bg-light: #f8fafc;
	--mrt-text-main: #0f172a;
	--mrt-text-muted: #64748b;
	--mrt-border: #e2e8f0;
	--mrt-radius: 16px;
	--mrt-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.01);
	--mrt-shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

.mrt-catalog-wrapper {
	max-width: 1140px;
	margin: 0 auto;
	padding: 3rem 1.5rem;
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Premium Hero */
.mrt-catalog-hero {
	text-align: center;
	padding: 4.5rem 2rem 3.5rem;
	background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
	color: #fff;
	border-radius: var(--mrt-radius);
	margin-bottom: 3rem;
	position: relative;
	overflow: hidden;
	box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.mrt-catalog-hero::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	background:
		radial-gradient(ellipse at top right, rgba(37, 99, 235, 0.25) 0%, transparent 50%),
		radial-gradient(ellipse at bottom left, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
	pointer-events: none;
	animation: mrt-hero-glow 6s ease-in-out infinite alternate;
}

@keyframes mrt-hero-glow {
	0% { opacity: 0.7; }
	100% { opacity: 1; }
}

.mrt-catalog-hero__title {
	font-size: 2.5rem;
	font-weight: 800;
	margin-bottom: 0.75rem;
	letter-spacing: -0.02em;
	background: linear-gradient(to right, #fff, #e2e8f0);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
}

.mrt-catalog-hero__subtitle {
	font-size: 1.1rem;
	color: #94a3b8;
	max-width: 700px;
	margin: 0 auto 1.5rem;
	line-height: 1.5;
}

.mrt-catalog-hero__trust {
	display: inline-flex;
	gap: 1.5rem;
	padding: 0.75rem 1.5rem;
	background: rgba(255, 255, 255, 0.05);
	backdrop-filter: blur(10px);
	border-radius: 100px;
	border: 1px solid rgba(255, 255, 255, 0.1);
	font-size: 0.9rem;
}

.mrt-catalog-hero__trust span {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	font-weight: 500;
	color: #e2e8f0;
}

/* Enhanced Audience Strip */
.mrt-catalog-audience {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 1.5rem;
	margin-bottom: 5rem;
}

.mrt-catalog-audience__card {
	background: #fff;
	border: 1px solid var(--mrt-border);
	border-radius: var(--mrt-radius);
	padding: 2rem;
	display: flex;
	flex-direction: column;
	text-decoration: none;
	color: var(--mrt-text-main);
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
	position: relative;
	overflow: hidden;
}

.mrt-catalog-audience__card::after {
	content: '';
	position: absolute;
	bottom: 0; left: 0; right: 0;
	height: 4px;
	background: var(--mrt-primary);
	transform: scaleX(0);
	transform-origin: left;
	transition: transform 0.3s ease;
}

.mrt-catalog-audience__card:hover {
	transform: translateY(-5px);
	box-shadow: var(--mrt-shadow-hover);
	border-color: #cbd5e1;
}

.mrt-catalog-audience__card:hover::after {
	transform: scaleX(1);
}

.mrt-catalog-audience__icon {
	font-size: 2.5rem;
	margin-bottom: 1rem;
	display: inline-block;
	background: var(--mrt-bg-light);
	width: 60px; height: 60px;
	line-height: 60px;
	text-align: center;
	border-radius: 12px;
}

.mrt-catalog-audience__card strong {
	font-size: 1.25rem;
	margin-bottom: 0.75rem;
	display: block;
	color: #0f172a;
}

.mrt-catalog-audience__content p {
	font-size: 0.95rem;
	color: #4b5563;
	line-height: 1.6;
	margin: 0 0 1.5rem 0;
	flex-grow: 1;
}

.mrt-catalog-audience__cta {
	color: var(--mrt-primary);
	font-weight: 700;
	font-size: 1rem;
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
	transition: gap 0.2s;
	margin-top: auto;
}

.mrt-catalog-audience__card:hover .mrt-catalog-audience__cta {
	gap: 0.75rem;
}

/* Premium Course Grid */
.mrt-catalog-section {
	margin-bottom: 5rem;
}

.mrt-catalog-section__header {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	margin-bottom: 2rem;
	border-bottom: 2px solid var(--mrt-bg-light);
	padding-bottom: 1rem;
}

.mrt-catalog-section__title {
	font-size: 2rem;
	font-weight: 800;
	color: var(--mrt-text-main);
	display: flex;
	align-items: center;
	gap: 0.75rem;
	margin: 0;
}

.mrt-catalog-section__desc {
	color: var(--mrt-text-muted);
	font-size: 1.1rem;
}

.mrt-catalog-carousel-wrapper {
	position: relative;
}

.mrt-catalog-grid {
	display: flex;
	overflow-x: auto;
	scroll-snap-type: x mandatory;
	scroll-behavior: smooth;
	gap: 1.5rem;
	padding-bottom: 1.5rem;
	-ms-overflow-style: none; /* IE and Edge */
	scrollbar-width: none; /* Firefox */
}

.mrt-catalog-grid::-webkit-scrollbar {
	display: none; /* Chrome, Safari and Opera */
}

/* Carousel Nav Buttons */
.mrt-carousel-btn {
	position: absolute;
	top: 50%;
	transform: translateY(-50%);
	width: 48px;
	height: 48px;
	border-radius: 50%;
	background: #fff;
	border: 1px solid #d1d5db;
	box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	z-index: 10;
	font-size: 1.25rem;
	color: #111827;
	transition: all 0.2s;
}

.mrt-carousel-btn:hover {
	background: #f3f4f6;
	box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.mrt-carousel-btn--prev {
	left: -24px;
	display: none;
}

.mrt-carousel-btn--next {
	right: -24px;
}

.mrt-catalog-card {
	flex: 0 0 260px;
	scroll-snap-align: start;
	background: #fff;
	border-radius: 16px;
	border: 1px solid #e5e7eb;
	overflow: hidden;
	transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
	display: flex;
	flex-direction: column;
	text-decoration: none !important;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.mrt-catalog-card,
.mrt-catalog-card *,
.mrt-catalog-card:hover,
.mrt-catalog-card:visited,
.mrt-catalog-card:active,
.mrt-catalog-card:focus {
	text-decoration: none !important;
	border-bottom: none !important;
}

.mrt-catalog-card:hover {
	box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12), 0 4px 8px rgba(0, 0, 0, 0.04);
	border-color: #c7d2fe;
	transform: translateY(-6px);
}

.mrt-catalog-card__thumb {
	position: relative;
	height: 160px;
	background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
	overflow: hidden;
}

.mrt-catalog-card__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.mrt-catalog-card:hover .mrt-catalog-card__img {
	transform: scale(1.05);
}

.mrt-catalog-card__badge {
	position: absolute;
	top: 1rem;
	left: 1rem;
	background: rgba(15, 23, 42, 0.85);
	backdrop-filter: blur(4px);
	color: #fff;
	font-size: 0.75rem;
	font-weight: 700;
	padding: 0.4rem 0.75rem;
	border-radius: 100px;
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.mrt-catalog-card__body {
	padding: 1rem;
	display: flex;
	flex-direction: column;
	flex-grow: 1;
}

.mrt-catalog-card__title {
	font-size: 1.05rem;
	font-weight: 800;
	margin: 0 0 0.5rem 0;
	color: #111827;
	line-height: 1.3;
	display: -webkit-box;
	-webkit-line-clamp: 2;
	-webkit-box-orient: vertical;
	overflow: hidden;
	text-decoration: none !important;
	border-bottom: none !important;
}

.mrt-catalog-card__excerpt {
	font-size: 0.85rem;
	color: #6b7280;
	line-height: 1.4;
	margin-bottom: 1rem;
	flex-grow: 1;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.mrt-catalog-card__meta {
	display: flex;
	gap: 0.5rem;
	font-size: 0.8rem;
	color: #4b5563;
	margin-bottom: 1rem;
	padding-bottom: 1rem;
	border-bottom: 1px solid #f3f4f6;
}

.mrt-catalog-card__meta span {
	display: flex;
	align-items: center;
	gap: 0.4rem;
	font-weight: 500;
}

.mrt-catalog-card__meta span i {
	font-style: normal;
	opacity: 0.7;
}

.mrt-catalog-card__footer {
	display: flex;
	justify-content: space-between;
	align-items: center;
	font-weight: 600;
}

.mrt-catalog-card__cta {
	color: var(--mrt-primary);
	display: flex;
	align-items: center;
	gap: 0.5rem;
	transition: all 0.3s;
	text-decoration: none !important;
	border-bottom: none !important;
	font-size: 0.9rem;
}

.mrt-catalog-card:hover .mrt-catalog-card__cta {
	gap: 0.75rem;
	color: var(--mrt-primary-hover);
}

/* Single Course Detail (/courses/{slug}/) */
.mrt-catalog-single {
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	background: #f8fafc;
}

.mrt-single-hero {
	background-size: cover;
	background-position: center;
	color: #fff;
	padding: 2rem 1.5rem 2.5rem;
	position: relative;
	overflow: hidden;
}

.mrt-single-hero::before {
	content: '';
	position: absolute;
	top: 0; left: 0; right: 0; bottom: 0;
	background: linear-gradient(135deg, rgba(15,23,42,0.92), rgba(15,23,42,0.97));
}

/* Category accent glow */
.mrt-single-hero::after {
	content: '';
	position: absolute;
	top: -30%; right: -10%;
	width: 400px; height: 400px;
	border-radius: 50%;
	background: var(--hero-accent, rgba(37, 99, 235, 0.15));
	filter: blur(80px);
	pointer-events: none;
}

/* Category color variants */
.mrt-single-hero[data-category="robotics"] { --hero-accent: rgba(37, 99, 235, 0.18); }
.mrt-single-hero[data-category="coding"] { --hero-accent: rgba(16, 185, 129, 0.18); }
.mrt-single-hero[data-category="math"] { --hero-accent: rgba(139, 92, 246, 0.18); }
.mrt-single-hero[data-category="studio"] { --hero-accent: rgba(20, 184, 166, 0.18); }

.mrt-single-hero__inner {
	max-width: 1200px;
	margin: 0 auto;
	display: flex;
	align-items: center;
	gap: 2rem;
	position: relative;
	z-index: 2;
}

.mrt-single-hero__content {
	max-width: 700px;
}

.mrt-single-hero__breadcrumbs {
	font-size: 0.8rem;
	color: #94a3b8;
	margin-bottom: 0.5rem;
	font-weight: 500;
	letter-spacing: 0.02em;
}

.mrt-single-hero__breadcrumbs a {
	color: #60a5fa;
	text-decoration: none;
	transition: color 0.2s;
}
.mrt-single-hero__breadcrumbs a:hover {
	color: #93c5fd;
}

.mrt-single-hero__title {
	font-size: 2rem;
	font-weight: 800;
	margin-bottom: 0.5rem;
	color: #fff;
	line-height: 1.25;
	letter-spacing: -0.02em;
}

.mrt-single-hero__excerpt {
	font-size: 1rem;
	color: #cbd5e1;
	margin-bottom: 1rem;
	line-height: 1.5;
}

.mrt-single-hero__meta {
	display: inline-flex;
	gap: 1rem;
	font-size: 0.82rem;
	flex-wrap: wrap;
	background: rgba(255, 255, 255, 0.06);
	padding: 0.6rem 1.2rem;
	border-radius: 100px;
	backdrop-filter: blur(8px);
	border: 1px solid rgba(255, 255, 255, 0.08);
}

.mrt-single-hero__meta span {
	display: flex;
	align-items: center;
	gap: 0.3rem;
	color: #e2e8f0;
	font-weight: 500;
}

@media (max-width: 768px) {
	.mrt-single-hero {
		padding: 1.5rem 1rem 2rem;
	}
	.mrt-single-hero__title {
		font-size: 1.5rem;
	}
	.mrt-single-hero__meta {
		flex-direction: column;
		gap: 0.4rem;
		border-radius: 12px;
	}
}

.mrt-single-layout {
	max-width: 1200px;
	margin: 0 auto;
	padding: 3rem 1rem;
	display: grid;
	grid-template-columns: 1fr 380px;
	gap: 3rem;
}

@media (max-width: 800px) {
	.mrt-single-layout {
		grid-template-columns: 1fr;
	}
}

.mrt-single-section {
	margin-bottom: 3rem;
}

.mrt-single-section__title {
	font-size: 1.75rem;
	font-weight: 800;
	margin-bottom: 1.5rem;
	color: #0f172a;
}

.mrt-single-box {
	background: #fff;
	border: 1px solid #e2e8f0;
	padding: 2rem;
	border-radius: 12px;
	box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.mrt-single-learn-list, .mrt-single-req-list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1rem;
}

@media (max-width: 600px) {
	.mrt-single-learn-list, .mrt-single-req-list {
		grid-template-columns: 1fr;
	}
}

.mrt-single-learn-list li, .mrt-single-req-list li {
	color: #334155;
	display: flex;
	align-items: flex-start;
	gap: 0.5rem;
	line-height: 1.5;
}

/* Curriculum Accordion */
.mrt-curriculum-accordion {
	background: #fff;
	border: 1px solid #e2e8f0;
	border-radius: 12px;
	overflow: hidden;
}

.mrt-curriculum-section {
	border-bottom: 1px solid #e2e8f0;
}
.mrt-curriculum-section:last-child {
	border-bottom: none;
}

.mrt-curriculum-section__header {
	background: #f8fafc;
	padding: 1.25rem 1.5rem;
	display: flex;
	justify-content: space-between;
	align-items: center;
}

.mrt-curriculum-section__title {
	font-size: 1.1rem;
	font-weight: 700;
	margin: 0;
	color: #0f172a;
}

.mrt-curriculum-section__meta {
	font-size: 0.9rem;
	color: #64748b;
	font-weight: 500;
}

.mrt-curriculum-item {
	padding: 1rem 1.5rem;
	display: flex;
	align-items: center;
	border-top: 1px solid #f1f5f9;
}

.mrt-curriculum-item__icon {
	margin-right: 1rem;
	font-size: 1.1rem;
}

.mrt-curriculum-item__title {
	flex-grow: 1;
	font-size: 1rem;
	color: #334155;
	font-weight: 500;
}

.mrt-curriculum-item__preview {
	font-size: 0.85rem;
	color: #fff;
	background: #2563eb;
	padding: 0.4rem 1rem;
	border-radius: 100px;
	text-decoration: none;
	font-weight: 600;
	transition: background 0.2s;
}

.mrt-curriculum-item__preview:hover {
	background: #1d4ed8;
}

/* Pricing Card (Sidebar) */
.mrt-pricing-card {
	border: 1px solid #e2e8f0;
	border-radius: 16px;
	background: #fff;
	overflow: hidden;
	position: sticky;
	top: 2rem;
	box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.mrt-pricing-card__thumb img {
	width: 100%;
	height: auto;
	display: block;
}

.mrt-pricing-card__body {
	padding: 2rem;
}

.mrt-pricing-card__price {
	font-size: 1.75rem;
	font-weight: 800;
	margin: 0 0 0.5rem 0;
	color: #0f172a;
}

.mrt-pricing-card__desc {
	font-size: 0.95rem;
	color: #64748b;
	margin-bottom: 1.5rem;
	line-height: 1.5;
}

.mrt-pricing-btn {
	display: block;
	width: 100%;
	text-align: center;
	padding: 1rem;
	border-radius: 8px;
	font-weight: 700;
	text-decoration: none;
	margin-bottom: 1rem;
	box-sizing: border-box;
	transition: all 0.2s;
	font-size: 1.05rem;
}

.mrt-pricing-btn--primary {
	background: #2563eb;
	color: #fff;
	box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
}

.mrt-pricing-btn--primary:hover {
	background: #1d4ed8;
	transform: translateY(-2px);
	box-shadow: 0 6px 8px -1px rgba(37, 99, 235, 0.4);
}

.mrt-pricing-btn--secondary {
	background: #fff;
	color: #2563eb;
	border: 2px solid #2563eb;
}

.mrt-pricing-btn--secondary:hover {
	background: #eff6ff;
}

.mrt-pricing-card__divider {
	text-align: center;
	margin: 1.5rem 0;
	position: relative;
}

.mrt-pricing-card__divider::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 0;
	right: 0;
	height: 1px;
	background: #e2e8f0;
	z-index: 1;
}

.mrt-pricing-card__divider span {
	background: #fff;
	padding: 0 0.75rem;
	position: relative;
	z-index: 2;
	color: #94a3b8;
	font-size: 0.85rem;
	font-weight: 600;
	text-transform: uppercase;
}

.mrt-pricing-card__includes h4 {
	font-size: 1.05rem;
	margin: 1.5rem 0 1rem 0;
	color: #0f172a;
	font-weight: 700;
}

.mrt-pricing-card__includes ul {
	list-style: none;
	padding: 0;
	margin: 0;
	font-size: 0.95rem;
	color: #475569;
}

.mrt-pricing-card__includes li {
	margin-bottom: 0.75rem;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

/* Preview Modal */
.mrt-modal-open {
	overflow: hidden;
}

.mrt-modal {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	z-index: 99999;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 1rem;
}

.mrt-modal__backdrop {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(15, 23, 42, 0.8);
	backdrop-filter: blur(4px);
}

.mrt-modal__content {
	position: relative;
	background: #fff;
	width: 100%;
	max-width: 800px;
	max-height: 90vh;
	border-radius: 12px;
	display: flex;
	flex-direction: column;
	box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
	animation: mrt-modal-fade 0.2s ease-out;
}

.mrt-modal__close {
	position: absolute;
	top: 1rem;
	right: 1.5rem;
	background: none;
	border: none;
	font-size: 2rem;
	color: #64748b;
	cursor: pointer;
	z-index: 10;
}

.mrt-modal__close:hover {
	color: #0f172a;
}

.mrt-modal__header {
	padding: 1.5rem;
	border-bottom: 1px solid #e2e8f0;
}

.mrt-modal__title {
	margin: 0;
	font-size: 1.25rem;
	color: #0f172a;
}

.mrt-modal__body {
	padding: 2rem;
	overflow-y: auto;
	font-size: 1rem;
	line-height: 1.6;
	color: #334155;
}

.mrt-modal__spinner {
	width: 40px;
	height: 40px;
	margin: 2rem auto;
	border: 4px solid #e2e8f0;
	border-top-color: #2563eb;
	border-radius: 50%;
	animation: mrt-spin 1s linear infinite;
}

@keyframes mrt-modal-fade {
	from { opacity: 0; transform: scale(0.95); }
	to { opacity: 1; transform: scale(1); }
}

@keyframes mrt-spin {
	to { transform: rotate(360deg); }
}