/**
 * Enhanced Courses Display - Innovative & Attractive Design
 *
 * @package Coursee
 * @since 1.0.0
 */

/* ============================================
   COURSE CARD ENHANCEMENTS
   ============================================ */

.course-item {
	position: relative;
	overflow: visible;
}

.course-item::before {
	content: '';
	position: absolute;
	top: -2px;
	left: -2px;
	right: -2px;
	bottom: -2px;
	background: linear-gradient(45deg, #000000, #333333, #000000);
	opacity: 0;
	transition: opacity 0.3s ease;
	z-index: -1;
	border-radius: 8px;
}

.course-item:hover::before {
	opacity: 0.1;
}

.course-item:hover {
	transform: translateY(-8px) scale(1.02);
	z-index: 10;
}

/* Course Badge Animations */
.course-badge-overlay {
	animation: pulse 2s infinite;
}

@keyframes pulse {
	0%, 100% {
		transform: scale(1);
		opacity: 1;
	}
	50% {
		transform: scale(1.05);
		opacity: 0.9;
	}
}

/* Instructor Avatar Enhancement */
.course-instructor .instructor-avatar {
	transition: transform 0.3s ease;
	border: 2px solid #000000;
}

.course-item:hover .course-instructor .instructor-avatar {
	transform: scale(1.1) rotate(5deg);
	border-color: #000000;
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Rating Stars Animation */
.course-rating .stars {
	display: inline-block;
}

.course-rating .stars:hover {
	animation: starShine 0.5s ease;
}

@keyframes starShine {
	0%, 100% {
		transform: scale(1);
	}
	50% {
		transform: scale(1.2);
	}
}

/* Price Highlight */
.course-price .price-amount {
	position: relative;
	display: inline-block;
}

.course-item:hover .course-price .price-amount::after {
	content: '';
	position: absolute;
	bottom: -2px;
	left: 0;
	right: 0;
	height: 2px;
	background: #000000;
	animation: priceUnderline 0.3s ease;
}

@keyframes priceUnderline {
	from {
		width: 0;
	}
	to {
		width: 100%;
	}
}

/* View Button Enhancement */
.course-view-btn {
	position: relative;
	overflow: hidden;
}

.course-view-btn::before {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 0;
	height: 0;
	background: rgba(255, 255, 255, 0.2);
	border-radius: 50%;
	transform: translate(-50%, -50%);
	transition: width 0.6s ease, height 0.6s ease;
}

.course-view-btn:hover::before {
	width: 300px;
	height: 300px;
}

/* ============================================
   COURSE GRID ENHANCEMENTS
   ============================================ */

.coursee-courses-grid {
	scroll-snap-type: x mandatory;
}

.course-item {
	scroll-snap-align: start;
}

/* Loading Animation */
.course-item.loading {
	opacity: 0.5;
	pointer-events: none;
}

.course-item.loading::after {
	content: '';
	position: absolute;
	top: 50%;
	left: 50%;
	width: 40px;
	height: 40px;
	margin: -20px 0 0 -20px;
	border: 4px solid #f3f3f3;
	border-top-color: #000000;
	border-radius: 50%;
	animation: spin 1s linear infinite;
}

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

/* Featured Course Highlight */
.course-item.featured {
	border: 3px solid #000000;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.course-item.featured::after {
	content: '⭐ FEATURED';
	position: absolute;
	top: 1rem;
	right: 1rem;
	background: #000000;
	color: #ffffff;
	padding: 0.5rem 1rem;
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	z-index: 5;
	animation: featuredPulse 2s infinite;
}

@keyframes featuredPulse {
	0%, 100% {
		box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.7);
	}
	50% {
		box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
	}
}

/* New Course Badge */
.course-item.new::before {
	content: 'NEW';
	position: absolute;
	top: 1rem;
	left: 1rem;
	background: #000000;
	color: #ffffff;
	padding: 0.375rem 0.75rem;
	font-size: 0.7rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	z-index: 5;
	border: 2px solid #ffffff;
	animation: newBounce 1s ease infinite;
}

@keyframes newBounce {
	0%, 100% {
		transform: translateY(0);
	}
	50% {
		transform: translateY(-5px);
	}
}

/* Bestseller Badge */
.course-item.bestseller::after {
	content: 'BESTSELLER';
	position: absolute;
	top: 1rem;
	right: 1rem;
	background: #fbbf24;
	color: #000000;
	padding: 0.5rem 1rem;
	font-size: 0.7rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.1em;
	z-index: 5;
	border: 2px solid #000000;
}

/* ============================================
   COURSE THUMBNAIL ENHANCEMENTS
   ============================================ */

.course-thumbnail {
	position: relative;
	overflow: hidden;
}

.course-thumbnail::after {
	content: '▶';
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%) scale(0);
	width: 60px;
	height: 60px;
	background: rgba(0, 0, 0, 0.8);
	color: #ffffff;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.5rem;
	transition: transform 0.3s ease;
	z-index: 3;
}

.course-item:hover .course-thumbnail::after {
	transform: translate(-50%, -50%) scale(1);
}

.course-thumbnail img {
	transition: transform 0.5s ease, filter 0.3s ease;
}

.course-item:hover .course-thumbnail img {
	transform: scale(1.1);
	filter: brightness(0.9);
}

/* ============================================
   INNOVATIVE FEATURES
   ============================================ */

/* Progress Indicator on Course Card */
.course-item .course-progress-indicator {
	position: absolute;
	bottom: 0;
	left: 0;
	right: 0;
	height: 4px;
	background: #e5e7eb;
	overflow: hidden;
}

.course-item .course-progress-indicator .progress-bar {
	height: 100%;
	background: #000000;
	transition: width 0.6s ease;
	position: relative;
}

.course-item .course-progress-indicator .progress-bar::after {
	content: '';
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
	animation: progressShine 2s infinite;
}

@keyframes progressShine {
	0% {
		transform: translateX(-100%);
	}
	100% {
		transform: translateX(100%);
	}
}

/* Quick Preview on Hover */
.course-item .course-quick-preview {
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	background: #ffffff;
	border: 2px solid #000000;
	border-top: none;
	padding: 1.5rem;
	opacity: 0;
	visibility: hidden;
	transform: translateY(-10px);
	transition: all 0.3s ease;
	z-index: 20;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.course-item:hover .course-quick-preview {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.course-quick-preview .preview-title {
	font-size: 1rem;
	font-weight: 700;
	color: #000000;
	margin: 0 0 0.75rem 0;
}

.course-quick-preview .preview-excerpt {
	font-size: 0.875rem;
	color: #6b7280;
	line-height: 1.6;
	margin: 0 0 1rem 0;
	display: -webkit-box;
	-webkit-line-clamp: 3;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.course-quick-preview .preview-meta {
	display: flex;
	gap: 1rem;
	font-size: 0.75rem;
	color: #6b7280;
	font-weight: 600;
}

/* ============================================
   COURSE FILTERS & SORTING
   ============================================ */

.courses-filters-bar {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 2rem;
	padding: 1.5rem;
	background: #ffffff;
	border: 2px solid #000000;
	flex-wrap: wrap;
	gap: 1rem;
}

.filter-group {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.filter-label {
	font-weight: 700;
	color: #000000;
	font-size: 0.875rem;
	text-transform: uppercase;
	letter-spacing: 0.05em;
}

.filter-select,
.sort-select {
	padding: 0.625rem 1rem;
	border: 2px solid #000000;
	font-size: 0.875rem;
	font-weight: 600;
	background: #ffffff;
	color: #000000;
	cursor: pointer;
	min-width: 150px;
}

.filter-select:focus,
.sort-select:focus {
	outline: 2px solid #000000;
	outline-offset: 2px;
}

/* View Toggle */
.view-toggle {
	display: flex;
	gap: 0.5rem;
	border: 2px solid #000000;
	padding: 0.25rem;
}

.view-toggle button {
	padding: 0.5rem 1rem;
	border: none;
	background: transparent;
	color: #000000;
	cursor: pointer;
	font-weight: 600;
	transition: all 0.2s ease;
}

.view-toggle button.active {
	background: #000000;
	color: #ffffff;
}

.view-toggle button:hover {
	background: #f3f4f6;
}

.view-toggle button.active:hover {
	background: #000000;
}

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

@media (max-width: 768px) {
	.courses-filters-bar {
		flex-direction: column;
		align-items: stretch;
	}
	
	.filter-group {
		width: 100%;
		flex-direction: column;
		align-items: flex-start;
	}
	
	.filter-select,
	.sort-select {
		width: 100%;
	}
	
	.course-item:hover {
		transform: translateY(-4px) scale(1.01);
	}
	
	.course-quick-preview {
		display: none;
	}
}