/**
 * Course Layouts Elementor TutorLMS - Main Styles
 * 
 * Comprehensive styling for the course grid widget with modern design
 * and responsive layout capabilities.
 */

/* ==========================================================================
   Course Grid Container
   ========================================================================== */

.cle-course-list-container {
    max-width: 100%;
    margin: 0 auto;
    font-family: inherit;
}

.grid-single-column{
    grid-template-columns: repeat(1, 1fr);
}

/* ==========================================================================
   Course Grid Layout
   ========================================================================== */

.cle-course-grid {
    display: grid;
    gap: 32px; /* 8px grid: 4 * 8px */
    margin-bottom: 32px; /* 8px grid: 4 * 8px */
}

/* ==========================================================================
   Course Card Layout
   ========================================================================== */

.cle-course-card {
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: row;
    align-items: stretch;
    min-height: 160px;
}

.cle-course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.cle-course-sidebar-meta .tutor-icon-clock-line,
.cle-course-sidebar-meta .tutor-icon-mortarboard,
.cle-course-sidebar-meta .tutor-icon-level,
.cle-course-sidebar-meta .tutor-icon-refresh-o{
    margin-right:.4rem;
}

.cle-course-sidebar {
    position: relative;
    overflow: hidden;
    width: 200px;
    flex-shrink: 0;
    padding: 20px 24px;
}

.cle-course-image {
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.cle-course-left-column {
    width: 250px;
}

.cle-course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.cle-course-card:hover .cle-course-image img {
    transform: scale(1.05);
}

.cle-course-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    font-size: 0.875rem;
    font-weight: 500;
}

.cle-course-content {
    padding: 10px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

.cle-course-sidebar-meta {
    display: grid;
    gap: .4rem;
}

.cle-course-title {
    margin: 0 0 8px 0;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1.4;
    color: #1a1a1a;
}

.cle-course-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.cle-course-title a:hover {
    color: #2563eb;
}

.cle-course-excerpt {
    color: #6b7280;
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cle-course-meta {
    margin-top: auto;
}

.cle-course-meta-items {
    display: flex;
    gap: 12px;
    font-size: 0.875rem;
    align-items: flex-start;
    margin-bottom: 12px;
    flex-direction: column;
}

.cle-course-meta-items span {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.cle-course-price {
    font-weight: 700;
    color: #1a1a1a;
    font-size: 1.5rem;
    position: absolute;
    top: 20px;
    right: 24px;
}

.cle-course-rating {
	color: #f59e0b;
}

.cle-rating-stars {
	display: inline-flex;
	align-items: center;
	gap: 2px;
}

.cle-course-rating-wrapper {
	display: flex;
	align-items: center;
	gap: 6px;
	margin-bottom: 8px;
}

.cle-rating-number {
	font-weight: 600;
	font-size: 0.875rem;
}

.cle-rating-count {
	color: #6b7280;
	font-size: 0.875rem;
}

.cle-star-full {
	color: #f59e0b;
}

.cle-star-half {
	color: #f59e0b;
}

.cle-star-empty {
	color: #d1d5db;
}

.cle-rating-text {
	font-size: 0.75rem;
}

.cle-course-instructor {
	color: #374151;
	font-size: 0.875rem;
	font-weight: 500;
	margin-bottom: 8px;
}

/* Instructor info with avatar */
.cle-instructor-info {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 12px;
}

.cle-instructor-avatar {
	width: 32px;
	height: 32px;
	border-radius: 50%;
	background: #e5e7eb;
	display: flex;
	align-items: center;
	justify-content: center;
	font-weight: 600;
	font-size: 0.75rem;
	color: #6b7280;
}

.cle-instructor-avatar img {
	width: 100%;
	height: 100%;
	border-radius: 50%;
	object-fit: cover;
}

.cle-instructor-link {
	color: inherit;
	text-decoration: none;
	transition: color 0.2s ease;
}

.cle-instructor-link:hover {
	color: #2563eb;
}

.cle-course-enrollment {
	color: #059669;
}

.cle-course-progress {
	color: #2563eb;
}

.cle-course-categories {
	color: #6b7280;
}

.cle-category-link {
	color: inherit;
	text-decoration: none;
	transition: color 0.2s ease;
}

/* Bestseller badge */
.cle-bestseller-badge {
	position: absolute;
	top: 12px;
	left: 12px;
	background: #ff6b35;
	color: white;
	font-size: 0.75rem;
	font-weight: 600;
	padding: 4px 8px;
	border-radius: 4px;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

/* Course stats */
.cle-course-stats {
	display: flex;
	align-items: center;
	gap: 16px;
	font-size: 0.875rem;
	color: #6b7280;
	margin-top: 8px;
}

.cle-course-stats span {
	display: flex;
	align-items: center;
	gap: 4px;
}

/* ==========================================================================
   Course Enroll Button
   ========================================================================== */

.cle-course-enroll {
    margin-top: auto;
    padding-top: 16px;
}

.cle-course-list-btn {
    width: 100%;
}

.cle-course-list-btn .tutor-btn {
    width: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    transition: all 0.2s ease;
    cursor: pointer;
    text-align: center;
    line-height: 1.4;
    background: #1a73e8;
    color: white;
    min-width: 120px;
}

/* Button style variations */
.cle-enroll-btn-outline .tutor-btn {
    background-color: #1a73e8;
    color: white;
    border: none;
}

.cle-enroll-btn-outline .tutor-btn:hover {
    background-color: #1557b0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.cle-enroll-btn-filled .tutor-btn {
    background-color: #1a73e8;
    color: #ffffff;
    border: none;
}

.cle-enroll-btn-filled .tutor-btn:hover {
    background-color: #1557b0;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.cle-enroll-btn-minimal .tutor-btn {
    background-color: transparent;
    color: #23527c;
    border-color: transparent;
    text-decoration: underline;
}

.cle-enroll-btn-minimal .tutor-btn:hover {
    background-color: #f3f4f6;
    color: #1a3f5f;
}

/* WooCommerce course booking styles */
.cle-course-booking-progress {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.75rem;
    background: #f9fafb;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
}

.cle-booking-progress-circle {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: conic-gradient(#e5e7eb 0deg, #e5e7eb calc(var(--pro) * 3.6deg), #23527c calc(var(--pro) * 3.6deg), #23527c 360deg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cle-booking-progress-circle::before {
    content: '';
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #ffffff;
}

.cle-booking-percentage {
    font-size: 0.75rem;
    font-weight: 500;
    color: #374151;
}

.cle-course-booking-full {
    text-align: center;
    padding: 0.75rem;
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: 6px;
    margin-bottom: 0.75rem;
}

.cle-booking-status {
    font-size: 0.875rem;
    font-weight: 500;
    color: #92400e;
}

.cle-course-price-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.cle-course-price-section .cle-course-price {
    font-size: 1.125rem;
    font-weight: 600;
    color: #059669;
    text-align: center;
}

/* List layout enroll button adjustments */
.cle-course-list .cle-course-enroll {
    margin-top: 0.75rem;
}

.cle-course-list .cle-course-list-btn .tutor-btn {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

/* Responsive enroll button */
@media (max-width: 767px) {
    .cle-course-list-btn .tutor-btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }
    
    .cle-booking-progress-circle {
        width: 32px;
        height: 32px;
    }
    
    .cle-booking-progress-circle::before {
        width: 22px;
        height: 22px;
    }
    
    .cle-booking-percentage {
        font-size: 0.6875rem;
    }
}

/* ==========================================================================
   Course List Layout
   ========================================================================== */

.cle-course-list {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); /* Minimal shadow */
    border: 1px solid #f1f3f4; /* Lighter border */
    transition: all 0.2s ease;
}

.cle-course-list:hover {
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.06); /* Minimal hover shadow */
    border-color: #e8eaed;
}

.cle-course-list-content {
    display: flex;
    gap: 24px; /* 8px grid: 3 * 8px */
    padding: 24px; /* 8px grid: 3 * 8px */
    align-items: flex-start;
}

.cle-course-list .cle-course-image {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: 6px;
    overflow: hidden;
}

.cle-course-details {
    flex: 1;
    min-width: 0;
}

.cle-course-list .cle-course-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.cle-course-list .cle-course-excerpt {
    margin-bottom: 0.75rem;
    -webkit-line-clamp: 2;
}

/* ==========================================================================
   Search Interface
   ========================================================================== */

.cle-search-container {
    margin-bottom: 32px; /* 8px grid: 4 * 8px */
}

.cle-search-form {
    display: flex;
    gap: 16px; /* 8px grid: 2 * 8px */
    max-width: 500px;
}

.cle-search-input {
    flex: 1;
    padding: 16px; /* 8px grid: 2 * 8px */
    border: 1px solid #f1f3f4; /* Lighter border */
    border-radius: 8px;
    font-size: 0.875rem;
    transition: border-color 0.2s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02); /* Minimal shadow */
}

.cle-search-input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.cle-search-button {
    padding: 16px 24px; /* 8px grid: 2 * 8px and 3 * 8px */
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08); /* Minimal shadow */
}

.cle-search-button:hover {
    background: #1d4ed8;
}

/* ==========================================================================
   Filter Interface
   ========================================================================== */

.cle-filter-interface {
    margin-bottom: 32px; /* 8px grid: 4 * 8px */
    border-radius: 8px;
    overflow: hidden;
    padding: 24px; /* 8px grid: 3 * 8px */
}

/* Advanced Filter Controls */
.cle-filter-checkboxes,
.cle-filter-radios {
    display: flex;
    flex-direction: column;
    gap: 8px; /* 8px grid: 1 * 8px */
    max-height: 200px;
    overflow-y: auto;
    padding: 16px; /* 8px grid: 2 * 8px */
    background: #ffffff;
    border: 1px solid #f1f3f4;
    border-radius: 8px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02); /* Minimal shadow */
}

.cle-checkbox-item,
.cle-radio-item {
    display: flex;
    align-items: center;
    gap: 8px; /* 8px grid: 1 * 8px */
    font-size: 0.875rem;
    cursor: pointer;
    padding: 8px 0; /* 8px grid: 1 * 8px */
}

.cle-checkbox-item input[type="checkbox"],
.cle-radio-item input[type="radio"] {
    margin: 0;
    cursor: pointer;
}

.cle-checkbox-item span,
.cle-radio-item span {
    flex: 1;
    cursor: pointer;
}

.cle-filter-slider {
    padding: 0.5rem 0;
}

.cle-filter-range {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #e5e7eb;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.cle-filter-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cle-filter-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #2563eb;
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.cle-slider-value {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px; /* 8px grid: 1 * 8px */
    font-size: 0.8125rem;
    color: #6b7280;
}

.cle-slider-current {
    font-weight: 600;
    color: #2563eb;
}

/* Filter item enhancements */
.cle-filter-item {
    position: relative;
}

.cle-filter-item .cle-filter-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

/* No options message */
.cle-no-options {
    color: #6b7280;
    font-style: italic;
    text-align: center;
    padding: 1rem;
    margin: 0;
    font-size: 0.875rem;
}

.cle-filter-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cle-global-search-container {
    flex: 1;
    max-width: 400px;
}

.cle-search-input-wrapper {
    position: relative;
}

.cle-global-search {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: border-color 0.2s ease;
}

.cle-global-search:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.cle-search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 0.875rem;
}

.cle-filter-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: #f3f4f6;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cle-filter-toggle-btn:hover {
    background: #e5e7eb;
    border-color: #9ca3af;
}

.cle-filter-arrow {
    transition: transform 0.2s ease;
}

.cle-filter-panel {
    padding: 1.5rem 0;
    background: #ffffff;
    transition: all 0.3s ease;
    display: block;
}

.cle-filter-panel-hidden {
    display: none !important;
}

/* Debug styles */
.cle-debug-info {
    background: #f0f0f0 !important;
    padding: 10px !important;
    margin: 10px 0 !important;
    border: 1px solid #ccc !important;
    font-family: monospace !important;
    font-size: 12px !important;
}

.cle-loading {
    opacity: 0.6;
    pointer-events: none;
}

.cle-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid #f3f4f6;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.cle-filter-panel.active {
    display: block;
}

.cle-filter-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.cle-filter-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.cle-filter-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
}

.cle-filter-dropdown {
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.875rem;
    transition: border-color 0.2s ease;
}

.cle-filter-dropdown:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.cle-filter-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1rem;
}

.cle-apply-filters,
.cle-clear-filters {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

/* ==========================================================================
   Pagination
   ========================================================================== */

.cle-pagination-container {
    margin: 32px 0; /* 8px grid: 4 * 8px */
}

.cle-pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px; /* 8px grid: 2 * 8px */
}

.cle-pagination-info {
    font-size: 0.875rem;
    color: #6b7280;
    text-align: center;
}

.cle-pagination-links {
    display: flex;
    align-items: center;
    gap: 8px; /* 8px grid: 1 * 8px */
    flex-wrap: wrap;
    justify-content: center;
}

.cle-pagination-link,
.cle-pagination .current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px; /* 8px grid: 5 * 8px */
    height: 40px; /* 8px grid: 5 * 8px */
    padding: 0 16px; /* 8px grid: 2 * 8px */
    border: 1px solid #f1f3f4; /* Lighter border */
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    background: #ffffff;
    color: #374151;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02); /* Minimal shadow */
}

.cle-pagination-link:hover {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04); /* Minimal hover shadow */
}

.cle-pagination-prev,
.cle-pagination-next {
    min-width: auto;
    padding: 0 16px; /* 8px grid: 2 * 8px */
}

/* Load More Button */
.cle-load-more-container {
    text-align: center;
    margin: 32px 0; /* 8px grid: 4 * 8px */
}

.cle-load-more-button {
    padding: 16px 32px; /* 8px grid: 2 * 8px and 4 * 8px */
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08); /* Minimal shadow */
}

.cle-load-more-button:disabled {
    cursor: not-allowed;
}

/* Infinite Scroll */
.cle-infinite-scroll-trigger {
    text-align: center;
    padding: 2rem 0;
}

.cle-infinite-scroll-spinner {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #6b7280;
    font-size: 0.875rem;
}

/* ==========================================================================
   No Courses Message
   ========================================================================== */

.cle-no-courses {
    text-align: center;
    padding: 3rem 1rem;
    font-size: 1.125rem;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 767px) {
    .cle-course-grid {
        gap: 24px; /* 8px grid: 3 * 8px */
    }
    
    .cle-course-card {
        flex-direction: column;
        min-height: auto;
    }
    
    .cle-course-image {
        width: 100%;
        height: 180px;
    }
    
    .cle-course-content {
        padding: 16px;
    }
    
    .cle-course-price {
        position: static;
        font-size: 1.25rem;
        margin-top: 8px;
        text-align: left;
    }
    
    .cle-course-title {
        font-size: 1.125rem;
    }
    
    .cle-filter-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .cle-global-search-container {
        max-width: none;
    }
    
    .cle-filter-controls {
        grid-template-columns: 1fr;
        gap: 16px; /* 8px grid: 2 * 8px */
    }
    
    .cle-filter-actions {
        flex-direction: column;
    }
    
    .cle-course-list-content {
        flex-direction: column;
        gap: 16px; /* 8px grid: 2 * 8px */
    }
    
    .cle-course-list .cle-course-image {
        width: 100%;
        height: 200px;
    }
    
    .cle-pagination-links {
        gap: 0.25rem;
    }
    
    .cle-pagination-link,
    .cle-pagination .current {
        min-width: 2.25rem;
        height: 2.25rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .cle-course-grid {
        gap: 16px; /* 8px grid: 2 * 8px */
    }
    
    .cle-course-content {
        padding: 16px;
    }
    
    .cle-course-title {
        font-size: 1.125rem;
    }
    
    .cle-course-title {
        font-size: 1rem;
    }
    
    .cle-course-excerpt {
        font-size: 0.75rem;
    }
    
    .cle-course-meta-items {
        font-size: 0.625rem;
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

/* Focus styles for keyboard navigation */
.cle-course-card:focus-within,
.cle-course-list:focus-within {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

.cle-search-input:focus,
.cle-filter-dropdown:focus,
.cle-pagination-link:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Animation Classes
   ========================================================================== */

/* Fade in animation for course items */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cle-course-item {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading animation for infinite scroll */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.cle-infinite-scroll-spinner::before {
    content: '';
    width: 1rem;
    height: 1rem;
    border: 2px solid #e5e7eb;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ==========================================================================
   Loading and Error States
   ========================================================================== */

.cle-loading {
    position: relative;
    opacity: 0.6;
    pointer-events: none;
}

.cle-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid #f3f4f6;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: 10;
}

.cle-error-message {
    text-align: center;
    padding: 2rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #dc2626;
    margin: 1rem 0;
}

.cle-error-message p {
    margin: 0;
    font-size: 0.875rem;
}

/* Filter panel animations */
.cle-filter-panel {
    transition: all 0.3s ease;
    max-height: 1000px;
    overflow: hidden;
}

.cle-filter-panel.cle-filter-panel-hidden {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin-top: 0;
    margin-bottom: 0;
}

/* Search input loading state */
.cle-search-input-wrapper {
    position: relative;
}

.cle-search-input-wrapper.loading::after {
    content: '';
    position: absolute;
    right: 0.75rem;
    top: 50%;
    width: 16px;
    height: 16px;
    margin-top: -8px;
    border: 2px solid #e5e7eb;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}



/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
    .cle-course-list-container {
        max-width: none;
    }
    
    .cle-course-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .cle-search-container,
    .cle-filter-interface,
    .cle-pagination-container {
        display: none;
    }
    
    .cle-course-card {
        box-shadow: none;
        border: 1px solid #000;
        break-inside: avoid;
    }
    
}



/* ==========================================================================
   Course Categories Grid Styles
   ========================================================================== */

.cle-categories-list-container {
    max-width: 100%;
    margin: 0 auto;
    font-family: inherit;
}

.cle-categories-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Responsive grid columns for categories */
.cle-categories-grid {
    grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 768px) {
    .cle-categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .cle-categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .cle-categories-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Category Card Layout */
.cle-category-card {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.cle-category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
    border-color: #d1d5db;
}

.cle-category-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.cle-category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.cle-category-card:hover .cle-category-image img {
    transform: scale(1.05);
}

.cle-category-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #6b7280;
    font-size: 0.875rem;
    font-weight: 500;
}

.cle-category-content {
    padding: 1.5rem;
}

.cle-category-title {
    margin: 0 0 0.75rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
}

.cle-category-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.cle-category-title a:hover {
    color: #23527c;
}

.cle-category-description {
    color: #6b7280;
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.cle-category-meta {
    margin-bottom: 1.5rem;
}

.cle-category-meta-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #6b7280;
}

.cle-category-meta-items span {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.cle-category-course-count {
    color: #059669;
    font-weight: 500;
}

.cle-category-view {
    margin-top: auto;
}

.cle-category-list-btn {
    text-align: center;
}

.cle-category-list-btn .tutor-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    border: 2px solid transparent;
    transition: all 0.2s ease;
    cursor: pointer;
    min-height: 44px;
    width: 100%;
}

.cle-view-btn-outline .tutor-btn {
    color: #23527c;
    background-color: transparent;
    border-color: #23527c;
}

.cle-view-btn-outline .tutor-btn:hover {
    color: #ffffff;
    background-color: #23527c;
    border-color: #23527c;
}

.cle-view-btn-filled .tutor-btn {
    color: #ffffff;
    background-color: #23527c;
    border-color: #23527c;
}

.cle-view-btn-filled .tutor-btn:hover {
    background-color: #1e3a8a;
    border-color: #1e3a8a;
}

.cle-view-btn-minimal .tutor-btn {
    color: #23527c;
    background-color: transparent;
    border-color: transparent;
    text-decoration: underline;
}

.cle-view-btn-minimal .tutor-btn:hover {
    color: #1e3a8a;
    text-decoration: none;
}

/* Category List Layout */
.cle-category-list {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
}

.cle-category-list:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: #d1d5db;
}

.cle-category-list-content {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
}

.cle-category-list .cle-category-image {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
}

.cle-category-details {
    flex: 1;
    min-width: 0;
}

.cle-category-list .cle-category-title {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
}

.cle-category-list .cle-category-description {
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}

.cle-category-list .cle-category-meta-items {
    margin-bottom: 0;
}

.cle-category-list .cle-category-view {
    flex-shrink: 0;
    margin-top: 0;
}

.cle-category-list .cle-category-list-btn .tutor-btn {
    width: auto;
    min-width: 120px;
}

/* No categories message */
.cle-no-categories {
    text-align: center;
    padding: 3rem 1rem;
    color: #6b7280;
    font-size: 1.125rem;
    background: #f9fafb;
    border-radius: 8px;
    border: 2px dashed #d1d5db;
}

.cle-no-categories::before {
    content: "📚";
    display: block;
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* Responsive styles for categories */
@media (max-width: 767px) {
    .cle-categories-grid {
        grid-template-columns: repeat(1, 1fr);
        gap: 1.5rem;
    }
    
    .cle-category-content {
        padding: 1.25rem;
    }
    
    .cle-category-title {
        font-size: 1.125rem;
    }
    
    .cle-category-list-content {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .cle-category-list .cle-category-image {
        width: 100%;
        height: 120px;
    }
    
    .cle-category-list .cle-category-view {
        width: 100%;
    }
    
    .cle-category-list .cle-category-list-btn .tutor-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .cle-categories-grid {
        gap: 1rem;
    }
    
    .cle-category-content {
        padding: 1rem;
    }
    
    .cle-category-title {
        font-size: 1rem;
    }
    
    .cle-category-description {
        font-size: 0.8125rem;
    }
    
    .cle-category-meta-items {
        font-size: 0.8125rem;
    }
    
    .cle-category-list-btn .tutor-btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }
}

/* Focus styles for accessibility */
.cle-category-card:focus-within,
.cle-category-list:focus-within {
    outline: 2px solid #23527c;
    outline-offset: 2px;
}

.cle-category-title a:focus,
.cle-category-list-btn .tutor-btn:focus {
    outline: 2px solid #23527c;
    outline-offset: 2px;
}

/* Loading state */
.cle-categories-grid.loading {
    opacity: 0.6;
    pointer-events: none;
}

.cle-categories-grid.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 4px solid #f3f4f6;
    border-top: 4px solid #23527c;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Print styles for categories */
@media print {
    .cle-categories-grid {
        display: block !important;
    }
    
    .cle-category-card,
    .cle-category-list {
        break-inside: avoid;
        margin-bottom: 1rem;
        box-shadow: none !important;
        border: 1px solid #000 !important;
    }
    
    .cle-category-list-btn .tutor-btn {
        display: none !important;
    }
}

/* ==========================================================================
   Modern Category and Tag Buttons
   ========================================================================== */

.cle-category-buttons,
.cle-tag-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.cle-category-button,
.cle-tag-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease-in-out;
    border: none;
    cursor: pointer;
    line-height: 1.2;
    white-space: nowrap;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.cle-category-button:hover,
.cle-tag-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    text-decoration: none;
}

.cle-category-button:active,
.cle-tag-button:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Category button specific styles */
.cle-category-button {
    background-color: #e3f2fd;
    color: #1976d2;
}

.cle-category-button:hover {
    background-color: #bbdefb;
    color: #0d47a1;
}

/* Tag button specific styles */
.cle-tag-button {
    background-color: #f3e5f5;
    color: #7b1fa2;
}

.cle-tag-button:hover {
    background-color: #e1bee7;
    color: #4a148c;
}

/* Responsive adjustments for buttons */
@media (max-width: 768px) {
    .cle-category-buttons,
    .cle-tag-buttons {
        gap: 6px;
    }
    
    .cle-category-button,
    .cle-tag-button {
        padding: 4px 10px;
        font-size: 0.6875rem;
    }
}

@media (max-width: 480px) {
    .cle-category-buttons,
    .cle-tag-buttons {
        gap: 4px;
    }
    
    .cle-category-button,
    .cle-tag-button {
        padding: 3px 8px;
        font-size: 0.625rem;
    }
}

/* Focus styles for accessibility */
.cle-category-button:focus,
.cle-tag-button:focus {
    outline: 2px solid #23527c;
    outline-offset: 2px;
}