/**
 * Course Components
 * Remote Madam Design System
 */

/* ============================================
   COURSE HERO
   ============================================ */

.course-hero {
	position: relative;
	background: var(--gradient-surface);
	padding: var(--spacing-16) 0;
	border-bottom: 1px solid var(--color-border);
}

.course-hero__container {
	max-width: var(--container-max-width);
	margin: 0 auto;
	padding: 0 var(--container-padding);
}

.course-hero__content {
	display: grid;
	grid-template-columns: 1fr 400px;
	gap: var(--spacing-12);
	align-items: start;
}

.course-hero__main {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-6);
}

.course-hero__badge {
	display: inline-block;
	padding: var(--spacing-2) var(--spacing-4);
	background: var(--gradient-primary);
	border-radius: var(--radius-full);
	font-size: var(--font-size-xs);
	font-weight: var(--font-weight-medium);
	color: var(--color-white);
	width: fit-content;
}

.course-hero__title {
	font-size: var(--font-size-5xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
	line-height: var(--line-height-tight);
}

.course-hero__description {
	font-size: var(--font-size-lg);
	color: var(--color-muted);
	line-height: var(--line-height-normal);
}

.course-hero__meta {
	display: flex;
	flex-wrap: wrap;
	gap: var(--spacing-6);
}

.course-hero__meta-item {
	display: flex;
	align-items: center;
	gap: var(--spacing-2);
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.course-hero__meta-icon {
	width: 20px;
	height: 20px;
}

.course-hero__instructor {
	display: flex;
	align-items: center;
	gap: var(--spacing-4);
}

.course-hero__instructor-avatar {
	width: 48px;
	height: 48px;
	border-radius: var(--radius-full);
}

.course-hero__instructor-info {
	display: flex;
	flex-direction: column;
}

.course-hero__instructor-name {
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-semibold);
	color: var(--color-white);
}

.course-hero__instructor-role {
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

/* ============================================
   COURSE CARD (SIDEBAR)
   ============================================ */

.course-hero__card {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-card);
	overflow: hidden;
	position: sticky;
	top: var(--spacing-8);
}

.course-hero__card-preview {
	position: relative;
	width: 100%;
	height: 200px;
	background-color: var(--color-surface-hover);
}

.course-hero__card-preview-image {
	width: 100%;
	height: 100%;
	object-fit: cover;
}

.course-hero__card-preview-play {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	width: 64px;
	height: 64px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--gradient-primary);
	border-radius: var(--radius-full);
	color: var(--color-white);
	box-shadow: var(--shadow-glow);
	transition: all var(--transition-fast) ease;
}

.course-hero__card-preview-play:hover {
	transform: translate(-50%, -50%) scale(1.1);
}

.course-hero__card-body {
	padding: var(--spacing-6);
}

.course-hero__card-price {
	display: flex;
	align-items: center;
	gap: var(--spacing-3);
	margin-bottom: var(--spacing-4);
}

.course-hero__card-price-current {
	font-size: var(--font-size-3xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
}

.course-hero__card-price-original {
	font-size: var(--font-size-lg);
	color: var(--color-muted);
	text-decoration: line-through;
}

.course-hero__card-features {
	list-style: none;
	margin-bottom: var(--spacing-6);
}

.course-hero__card-feature {
	display: flex;
	align-items: center;
	gap: var(--spacing-3);
	padding: var(--spacing-2) 0;
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.course-hero__card-feature-icon {
	width: 20px;
	height: 20px;
	color: var(--color-success);
}

.course-hero__card-actions {
	display: flex;
	flex-direction: column;
	gap: var(--spacing-3);
}

/* ============================================
   CURRICULUM
   ============================================ */

.curriculum {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-card);
	overflow: hidden;
}

.curriculum__header {
	padding: var(--spacing-6);
	border-bottom: 1px solid var(--color-border);
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.curriculum__title {
	font-size: var(--font-size-xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
}

.curriculum__stats {
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.curriculum__section {
	border-bottom: 1px solid var(--color-border);
}

.curriculum__section:last-child {
	border-bottom: none;
}

.curriculum__section-header {
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: var(--spacing-5) var(--spacing-6);
	background: transparent;
	border: none;
	cursor: pointer;
	transition: background-color var(--transition-fast) ease;
}

.curriculum__section-header:hover {
	background-color: var(--color-surface-hover);
}

.curriculum__section-info {
	display: flex;
	align-items: center;
	gap: var(--spacing-4);
}

.curriculum__section-icon {
	width: 24px;
	height: 24px;
	color: var(--color-muted);
	transition: transform var(--transition-fast) ease;
}

.curriculum__section--open .curriculum__section-icon {
	transform: rotate(180deg);
}

.curriculum__section-title {
	font-size: var(--font-size-base);
	font-weight: var(--font-weight-semibold);
	color: var(--color-white);
}

.curriculum__section-meta {
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.curriculum__lessons {
	max-height: 0;
	overflow: hidden;
	transition: max-height var(--transition-slow) ease;
}

.curriculum__section--open .curriculum__lessons {
	max-height: 1000px;
}

.curriculum__lesson {
	display: flex;
	align-items: center;
	gap: var(--spacing-4);
	padding: var(--spacing-4) var(--spacing-6);
	font-size: var(--font-size-sm);
	color: var(--color-muted);
	transition: all var(--transition-fast) ease;
	cursor: pointer;
}

.curriculum__lesson:hover {
	background-color: var(--color-surface-hover);
	color: var(--color-white);
}

.curriculum__lesson--active {
	background-color: var(--color-primary-light);
	color: var(--color-primary);
}

.curriculum__lesson-icon {
	width: 20px;
	height: 20px;
	flex-shrink: 0;
}

.curriculum__lesson-info {
	flex: 1;
}

.curriculum__lesson-title {
	font-weight: var(--font-weight-medium);
}

.curriculum__lesson-duration {
	font-size: var(--font-size-xs);
	color: var(--color-muted-light);
}

.curriculum__lesson-status {
	width: 20px;
	height: 20px;
	display: flex;
	align-items: center;
	justify-content: center;
	color: var(--color-success);
}

/* ============================================
   LESSON PLAYER
   ============================================ */

.lesson-player {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-card);
	overflow: hidden;
}

.lesson-player__video {
	position: relative;
	width: 100%;
	padding-top: 56.25%;
	background-color: var(--color-surface-hover);
}

.lesson-player__video-content {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
}

.lesson-player__info {
	padding: var(--spacing-6);
}

.lesson-player__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: var(--spacing-4);
}

.lesson-player__title {
	font-size: var(--font-size-xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
}

.lesson-player__progress {
	margin-bottom: var(--spacing-6);
}

.lesson-player__actions {
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.lesson-player__nav {
	display: flex;
	align-items: center;
	gap: var(--spacing-3);
}

/* ============================================
   COURSE CONTENT TABS
   ============================================ */

.course-tabs {
	display: flex;
	gap: var(--spacing-2);
	border-bottom: 1px solid var(--color-border);
	margin-bottom: var(--spacing-8);
}

.course-tab {
	padding: var(--spacing-3) var(--spacing-6);
	font-size: var(--font-size-sm);
	font-weight: var(--font-weight-medium);
	color: var(--color-muted);
	background: transparent;
	border: none;
	border-radius: var(--radius-md);
	cursor: pointer;
	transition: all var(--transition-fast) ease;
}

.course-tab:hover {
	color: var(--color-white);
	background-color: var(--color-surface-hover);
}

.course-tab--active {
	color: var(--color-white);
	background-color: var(--color-surface-hover);
}

/* ============================================
   INSTRUCTOR CARD
   ============================================ */

.instructor-card {
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-card);
	padding: var(--spacing-8);
	display: flex;
	gap: var(--spacing-6);
}

.instructor-card__avatar {
	width: 120px;
	height: 120px;
	border-radius: var(--radius-full);
}

.instructor-card__info {
	flex: 1;
}

.instructor-card__name {
	font-size: var(--font-size-2xl);
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
	margin-bottom: var(--spacing-2);
}

.instructor-card__role {
	font-size: var(--font-size-base);
	color: var(--color-primary);
	margin-bottom: var(--spacing-4);
}

.instructor-card__bio {
	font-size: var(--font-size-base);
	color: var(--color-muted);
	line-height: var(--line-height-normal);
	margin-bottom: var(--spacing-4);
}

.instructor-card__stats {
	display: flex;
	gap: var(--spacing-6);
}

.instructor-card__stat {
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.instructor-card__stat-value {
	font-weight: var(--font-weight-semibold);
	color: var(--color-white);
}

/* ============================================
   REVIEWS
   ============================================ */

.reviews-summary {
	display: flex;
	gap: var(--spacing-8);
	padding: var(--spacing-8);
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-card);
	margin-bottom: var(--spacing-8);
}

.reviews-summary__rating {
	text-align: center;
}

.reviews-summary__score {
	font-size: var(--font-size-6xl);
	font-weight: var(--font-weight-bold);
	background: var(--gradient-primary);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.reviews-summary__stars {
	display: flex;
	gap: var(--spacing-1);
	justify-content: center;
	margin: var(--spacing-2) 0;
	color: #F59E0B;
}

.reviews-summary__count {
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.reviews-summary__breakdown {
	flex: 1;
}

.reviews-summary__bar {
	display: flex;
	align-items: center;
	gap: var(--spacing-3);
	margin-bottom: var(--spacing-2);
}

.reviews-summary__bar-label {
	width: 30px;
	font-size: var(--font-size-sm);
	color: var(--color-muted);
}

.reviews-summary__bar-track {
	flex: 1;
	height: 8px;
	background-color: var(--color-surface-hover);
	border-radius: var(--radius-full);
	overflow: hidden;
}

.reviews-summary__bar-fill {
	height: 100%;
	background: var(--gradient-primary);
	border-radius: var(--radius-full);
}

.reviews-summary__bar-count {
	width: 40px;
	font-size: var(--font-size-sm);
	color: var(--color-muted);
	text-align: right;
}

/* ============================================
   RESPONSIVE
   ============================================ */

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

	.course-hero__card {
		position: static;
	}

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

	.instructor-card__stats {
		justify-content: center;
	}
}

@media (max-width: 768px) {
	.course-hero {
		padding: var(--spacing-8) 0;
	}

	.course-hero__title {
		font-size: var(--font-size-4xl);
	}

	.course-hero__meta {
		flex-direction: column;
		gap: var(--spacing-3);
	}

	.reviews-summary {
		flex-direction: column;
		align-items: center;
	}

	.course-tabs {
		overflow-x: auto;
		white-space: nowrap;
	}
}