/**
 * Course Styles — AD ARCHVIZ
 *
 * Course listing grid, filters, search, single course hero, and curriculum accordion.
 */

/* ── Course Archive Grid & Header ────────────────────────── */

.nova-courses-archive {
	padding-top: var(--space-2xl);
	padding-bottom: var(--space-4xl);
}

.nova-courses-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: var(--space-lg);
	margin-bottom: var(--space-2xl);
}

.nova-courses-search {
	display: flex;
	gap: var(--space-sm);
	max-width: 400px;
	width: 100%;
}

.nova-courses-search__input {
	flex: 1;
	padding: 0.75rem 1.15rem;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-pill);
	font-size: var(--text-sm);
	background: var(--color-surface);
	color: #FFFFFF;
	transition: border-color var(--transition-fast);
}

.nova-courses-search__input:focus {
	outline: none;
	border-color: var(--color-accent);
	box-shadow: 0 0 0 3px rgba(224, 184, 108, 0.15);
}

.nova-courses-filters {
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-sm);
	margin-bottom: var(--space-2xl);
}

.nova-filter-btn {
	display: inline-flex;
	align-items: center;
	padding: 0.5rem 1.25rem;
	border-radius: var(--radius-pill);
	font-size: var(--text-xs);
	font-weight: 600;
	letter-spacing: var(--tracking-wide);
	text-transform: uppercase;
	background: var(--color-surface);
	color: var(--color-muted);
	border: 1px solid var(--color-border);
	cursor: pointer;
	text-decoration: none;
	transition: all var(--transition-fast);
}

.nova-filter-btn:hover,
.nova-filter-btn.active {
	background: var(--color-accent);
	border-color: var(--color-accent);
	color: #0A0B0E;
	font-weight: 700;
}

/* ── Single Course Page (AD ARCHVIZ Dark Luxury Standard) ── */

.nova-course-single {
	background-color: var(--color-bg);
	min-height: 100vh;
}

/* Hero */
.nova-course-hero {
	background: radial-gradient(circle at 80% 20%, rgba(224, 184, 108, 0.08) 0%, transparent 60%),
	            linear-gradient(180deg, #11141E 0%, #0A0B0E 100%);
	border-bottom: 1px solid var(--color-border);
	padding: var(--space-3xl) 0;
	position: relative;
}

.nova-course-breadcrumbs {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 8px;
	font-size: 0.8rem;
	color: var(--color-muted);
	margin-bottom: var(--space-lg);
}

.nova-course-breadcrumbs a {
	color: #A0A5B5;
	text-decoration: none;
	transition: color var(--transition-fast);
}

.nova-course-breadcrumbs a:hover {
	color: var(--color-accent);
}

.nova-course-breadcrumbs__sep {
	color: rgba(255, 255, 255, 0.25);
	font-size: 1rem;
}

.nova-course-breadcrumbs__current {
	color: var(--color-accent);
	font-weight: 600;
}

.nova-course-hero__badge {
	display: inline-flex;
	align-items: center;
	padding: 0.35rem 0.95rem;
	font-size: 0.72rem;
	font-weight: 800;
	letter-spacing: 0.15em;
	text-transform: uppercase;
	margin-bottom: var(--space-md);
	background: rgba(224, 184, 108, 0.12);
	border: 1px solid rgba(224, 184, 108, 0.35);
	color: var(--color-accent);
	border-radius: var(--radius-pill);
}

.nova-course-hero__title {
	font-family: var(--font-display);
	font-size: clamp(2rem, 3.8vw, 3.2rem);
	font-weight: 800;
	color: #FFFFFF;
	line-height: 1.2;
	letter-spacing: -0.02em;
	margin-bottom: var(--space-md);
	max-width: 900px;
}

.nova-course-hero__excerpt {
	font-size: 1.05rem;
	color: #B5B9C7;
	line-height: 1.7;
	max-width: 820px;
	margin-bottom: var(--space-2xl);
}

.nova-course-hero__meta {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: var(--space-xl);
	padding-top: var(--space-lg);
	border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nova-course-hero__meta-item {
	display: flex;
	flex-direction: column;
	gap: 4px;
}

.nova-course-hero__meta-label {
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: #7A8094;
}

.nova-course-hero__meta-value {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.88rem;
	font-weight: 600;
	color: #FFFFFF;
}

.nova-course-hero__meta-value svg {
	color: var(--color-accent);
}

/* ── Main Layout: Content + Sticky Sidebar ───────────────── */

.nova-course-body {
	padding-top: var(--space-3xl);
	padding-bottom: var(--space-4xl);
}

.nova-course-layout {
	display: grid;
	grid-template-columns: 1fr 380px;
	gap: var(--space-3xl);
	align-items: start;
}

.nova-course-main {
	display: flex;
	flex-direction: column;
	gap: var(--space-2xl);
}

.nova-course-section-title {
	font-family: var(--font-display);
	font-size: 1.45rem;
	font-weight: 700;
	color: #FFFFFF;
	margin-bottom: var(--space-xl);
	display: flex;
	align-items: center;
	gap: 10px;
}

.nova-course-section-title span {
	color: var(--color-accent);
}

/* Highlights Box */
.nova-course-highlights {
	background: linear-gradient(145deg, #131620 0%, #0F1118 100%);
	border: 1px solid rgba(224, 184, 108, 0.25);
	border-radius: var(--radius-xl);
	padding: var(--space-2xl);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.nova-highlights-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: var(--space-lg);
}

.nova-highlight-item {
	display: flex;
	align-items: flex-start;
	gap: 12px;
}

.nova-highlight-icon {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 24px;
	height: 24px;
	background: rgba(224, 184, 108, 0.15);
	color: var(--color-accent);
	border-radius: var(--radius-circle);
	font-size: 0.75rem;
	font-weight: 800;
	flex-shrink: 0;
	margin-top: 2px;
}

.nova-highlight-item strong {
	display: block;
	font-size: 0.92rem;
	color: #FFFFFF;
	margin-bottom: 2px;
}

.nova-highlight-item p {
	font-size: 0.82rem;
	color: var(--color-muted);
	line-height: 1.5;
	margin: 0;
}

/* Description */
.nova-course-description {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-xl);
	padding: var(--space-2xl);
}

.nova-course-rich-text {
	color: #C7CBD6;
	font-size: 0.95rem;
	line-height: 1.8;
}

.nova-course-rich-text p {
	margin-bottom: var(--space-lg);
}

.nova-course-rich-text h2,
.nova-course-rich-text h3 {
	font-family: var(--font-display);
	color: #FFFFFF;
	margin-top: var(--space-2xl);
	margin-bottom: var(--space-md);
}

.nova-course-rich-text ul {
	padding-left: 1.5rem;
	margin-bottom: var(--space-lg);
}

.nova-course-rich-text li {
	margin-bottom: 0.5rem;
}

/* Curriculum Section */
.nova-course-curriculum-wrap {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-xl);
	padding: var(--space-2xl);
}

.nova-curriculum-meta {
	font-size: 0.85rem;
	color: var(--color-muted);
	margin-bottom: var(--space-xl);
}

.nova-curriculum__section {
	background: #11141D;
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	margin-bottom: var(--space-md);
	overflow: hidden;
}

.nova-curriculum__section-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1.1rem 1.4rem;
	background-color: #171A24;
	border-bottom: 1px solid rgba(255, 255, 255, 0.06);
	cursor: pointer;
	user-select: none;
	transition: background-color var(--transition-fast);
}

.nova-curriculum__section-header:hover {
	background-color: #1B1F2C;
}

.nova-curriculum__section-title-wrap {
	display: flex;
	align-items: center;
	gap: 12px;
}

.nova-module-badge {
	font-size: 0.68rem;
	font-weight: 800;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-accent);
	background: rgba(224, 184, 108, 0.12);
	border: 1px solid rgba(224, 184, 108, 0.3);
	padding: 3px 8px;
	border-radius: var(--radius-sm);
}

.nova-curriculum__section-title {
	font-family: var(--font-primary);
	font-size: 0.95rem;
	font-weight: 700;
	color: #FFFFFF;
	margin: 0;
}

.nova-curriculum__section-meta-right {
	display: flex;
	align-items: center;
	gap: 12px;
}

.nova-curriculum__section-count {
	font-size: 0.75rem;
	color: #9AA0B2;
	background: rgba(255, 255, 255, 0.05);
	padding: 3px 10px;
	border-radius: var(--radius-pill);
}

.nova-curriculum__chevron {
	display: flex;
	align-items: center;
	justify-content: center;
	color: #9AA0B2;
	transition: transform var(--transition-normal), color var(--transition-fast);
}

.nova-curriculum__section.is-open .nova-curriculum__chevron {
	transform: rotate(180deg);
	color: var(--color-accent);
}

.nova-curriculum__section:not(.is-open) .nova-curriculum__section-header {
	border-bottom: none;
}

.nova-curriculum__section:not(.is-open) .nova-curriculum__lessons {
	display: none;
}

.nova-curriculum__lessons {
	border-top: none;
}

.nova-curriculum__lesson {
	display: flex;
	align-items: center;
	gap: 14px;
	padding: 1rem 1.4rem;
	font-size: 0.88rem;
	color: #D1D5DB;
	border-bottom: 1px solid rgba(255, 255, 255, 0.04);
	transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nova-curriculum__lesson:last-child {
	border-bottom: none;
}

.nova-curriculum__lesson:hover {
	background-color: rgba(224, 184, 108, 0.05);
	color: #FFFFFF;
}

.nova-curriculum__lesson-icon {
	color: var(--color-accent);
	display: flex;
	align-items: center;
	flex-shrink: 0;
}

.nova-curriculum__lesson-title {
	flex: 1;
	line-height: 1.4;
}

.nova-curriculum__lesson-meta {
	display: flex;
	align-items: center;
	gap: 10px;
}

.nova-curriculum__lesson-duration {
	font-size: 0.75rem;
	color: #8C92A4;
}

.nova-curriculum__lesson-lock svg {
	color: #6B7280;
}

/* Instructor Box */
.nova-instructor-card {
	background: linear-gradient(135deg, #131620 0%, #101219 100%);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-xl);
	padding: var(--space-2xl);
	display: flex;
	gap: var(--space-xl);
	align-items: flex-start;
}

.nova-instructor-avatar {
	width: 80px;
	height: 80px;
	border-radius: var(--radius-circle);
	overflow: hidden;
	border: 2px solid var(--color-accent);
	background: #0A0B0E;
	flex-shrink: 0;
	display: flex;
	align-items: center;
	justify-content: center;
}

.nova-instructor-avatar img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.nova-instructor-tag {
	font-size: 0.68rem;
	font-weight: 800;
	letter-spacing: 0.15em;
	text-transform: uppercase;
	color: var(--color-accent);
	margin-bottom: 4px;
	display: block;
}

.nova-instructor-name {
	font-family: var(--font-display);
	font-size: 1.35rem;
	font-weight: 700;
	color: #FFFFFF;
	margin-bottom: 2px;
}

.nova-instructor-title {
	font-size: 0.82rem;
	color: #A0A5B5;
	margin-bottom: var(--space-md);
}

.nova-instructor-social {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	margin-top: var(--space-sm);
	font-size: var(--text-sm);
	font-weight: 600;
	color: var(--color-accent);
	text-decoration: none;
}

.nova-instructor-social:hover {
	color: #FFFFFF;
}

.nova-instructor-bio {
	font-size: 0.88rem;
	color: #C5C9D5;
	line-height: 1.6;
	margin: 0;
}

/* ── Sticky Sidebar Card (The column itself is the single container) ─────── */

.nova-course-sidebar {
	position: sticky;
	top: 100px;
	z-index: 20;
	background: #11141D;
	border: 1px solid rgba(224, 184, 108, 0.28);
	border-radius: var(--radius-xl);
	overflow: hidden;
	box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 25px rgba(224, 184, 108, 0.1);
	padding: 0;
}

/* Backward compatibility reset if inner wrapper exists in cached HTML */
.nova-course-sidebar .nova-sticky-sidebar-card,
.nova-sticky-sidebar-card {
	background: none !important;
	border: none !important;
	box-shadow: none !important;
	border-radius: 0 !important;
	padding: 0 !important;
	overflow: visible !important;
}

.nova-sidebar-card__media {
	position: relative;
	width: 100%;
	aspect-ratio: 16 / 9;
	overflow: hidden;
	background-color: #0E1015;
}

.nova-sidebar-card__media img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
	transition: transform var(--transition-slow);
}

.nova-course-sidebar:hover .nova-sidebar-card__media img,
.nova-sticky-sidebar-card:hover .nova-sidebar-card__media img {
	transform: scale(1.05);
}

.nova-sidebar-card__pill {
	position: absolute;
	top: 14px;
	left: 14px;
	font-size: 0.68rem;
	font-weight: 800;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--color-accent);
	background: rgba(10, 11, 14, 0.85);
	backdrop-filter: blur(8px);
	border: 1px solid rgba(224, 184, 108, 0.4);
	padding: 3px 10px;
	border-radius: var(--radius-pill);
}

.nova-sidebar-card__body {
	padding: var(--space-xl);
}

.nova-sidebar-card__price-wrap {
	text-align: center;
	margin-bottom: var(--space-xl);
	padding-bottom: var(--space-lg);
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nova-sidebar-card__price {
	font-family: var(--font-display);
	font-size: 2.3rem;
	font-weight: 800;
	color: var(--color-accent);
	letter-spacing: -0.02em;
	line-height: 1;
	margin-bottom: 6px;
}

.nova-sidebar-card__price-sub {
	font-size: 0.78rem;
	color: var(--color-muted);
}

.nova-sidebar-card__actions {
	display: flex;
	flex-direction: column;
	gap: var(--space-md);
	margin-bottom: var(--space-xl);
}

.nova-btn--block {
	width: 100%;
	justify-content: center;
	text-align: center;
}

.nova-sidebar-card__features {
	margin-bottom: var(--space-xl);
}

.nova-sidebar-card__heading {
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: #FFFFFF;
	margin-bottom: var(--space-md);
}

.nova-sidebar-feature-list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.nova-sidebar-feature-list li {
	display: flex;
	align-items: center;
	gap: 10px;
	font-size: 0.83rem;
	color: #D1D5DB;
}

.nova-feat-icon {
	color: var(--color-accent);
	font-size: 0.75rem;
	flex-shrink: 0;
}

.nova-sidebar-card__guarantee {
	display: flex;
	align-items: center;
	gap: 10px;
	padding-top: var(--space-md);
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	font-size: 0.73rem;
	color: #A0A5B5;
	line-height: 1.4;
}

.nova-sidebar-card__guarantee svg {
	flex-shrink: 0;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 1024px) {
	.nova-course-layout {
		grid-template-columns: 1fr;
	}

	.nova-course-sidebar {
		position: static;
		max-width: 500px;
		margin: 0 auto;
		width: 100%;
	}
}

@media (max-width: 768px) {
	.nova-highlights-grid {
		grid-template-columns: 1fr;
	}

	.nova-course-hero__title {
		font-size: 2rem;
	}

	.nova-instructor-card {
		flex-direction: column;
		align-items: center;
		text-align: center;
	}

	.nova-courses-header {
		flex-direction: column;
		align-items: stretch;
	}

	.nova-courses-search {
		max-width: none;
	}
}

/* ── ArchViz Workshops Hub & Engine Tabs ─────────────────── */

.nova-workshops-filter-strip {
	background: #0B0D13;
	border-bottom: 1px solid rgba(255, 255, 255, 0.08);
	padding: var(--space-lg) 0;
	position: sticky;
	top: 80px;
	z-index: calc(var(--z-sticky) - 1);
	backdrop-filter: blur(16px);
}

.nova-engine-tabs {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-wrap: wrap;
	gap: var(--space-md);
}

.nova-engine-tab {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	padding: 0.65rem 1.45rem;
	background: rgba(255, 255, 255, 0.03);
	border: 1px solid rgba(255, 255, 255, 0.1);
	border-radius: var(--radius-pill);
	text-decoration: none;
	color: #D1D5DB;
	font-size: var(--text-sm);
	font-weight: 600;
	letter-spacing: var(--tracking-wide);
	transition: all var(--transition-fast);
}

.nova-engine-tab__arabic {
	font-size: 0.8rem;
	opacity: 0.7;
	border-left: 1px solid rgba(255, 255, 255, 0.15);
	padding-left: 8px;
}

.nova-engine-tab:hover {
	background: rgba(229, 195, 120, 0.1);
	border-color: var(--color-accent);
	color: #FFFFFF;
	transform: translateY(-2px);
}

.nova-engine-tab.is-active {
	background: var(--color-accent);
	color: #07080A;
	border-color: var(--color-accent);
	box-shadow: 0 4px 20px rgba(229, 195, 120, 0.35);
}

.nova-engine-tab.is-active .nova-engine-tab__arabic {
	border-left-color: rgba(7, 8, 10, 0.25);
	opacity: 0.9;
}

.nova-engine-tab--vray.is-active {
	background: #38BDF8;
	color: #07080A;
	border-color: #38BDF8;
	box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
}

.nova-engine-tab--corona.is-active {
	background: #FB923C;
	color: #07080A;
	border-color: #FB923C;
	box-shadow: 0 4px 20px rgba(251, 146, 60, 0.35);
}

/* Engine Spotlight Banners */
.nova-engine-spotlight {
	border-radius: var(--radius-xl);
	padding: var(--space-2xl);
	margin-bottom: var(--space-3xl);
	position: relative;
	overflow: hidden;
}

.nova-engine-spotlight--vray {
	background: linear-gradient(135deg, rgba(56, 189, 248, 0.12) 0%, rgba(18, 21, 32, 0.95) 100%);
	border: 1px solid rgba(56, 189, 248, 0.35);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(56, 189, 248, 0.06);
}

.nova-engine-spotlight--corona {
	background: linear-gradient(135deg, rgba(251, 146, 60, 0.12) 0%, rgba(18, 21, 32, 0.95) 100%);
	border: 1px solid rgba(251, 146, 60, 0.35);
	box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(251, 146, 60, 0.06);
}

.nova-engine-spotlight__title {
	font-family: var(--font-display);
	font-size: var(--text-2xl);
	font-weight: 800;
	color: #FFFFFF;
	margin: var(--space-sm) 0 4px 0;
}

.nova-engine-spotlight__arabic {
	font-size: var(--text-base);
	font-weight: 700;
	color: var(--color-accent);
	margin-bottom: var(--space-sm);
}

.nova-engine-spotlight__desc {
	color: #D1D5DB;
	font-size: var(--text-sm);
	max-width: 650px;
	margin: 0;
	line-height: var(--leading-normal);
}

/* ── Course intro / overview video ───────────────────────── */

.nova-course-video {
	padding: var(--space-xl);
}

.nova-video-embed {
	position: relative;
	width: 100%;
	aspect-ratio: 16 / 9;
	overflow: hidden;
	border-radius: var(--radius-lg, 12px);
	background: #000;
}

.nova-video-embed iframe,
.nova-video-embed video {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	border: 0;
}