/**
 * LearningCourse Frontend Styles
 */

/* Variables */
:root {
    --lc-primary: #2563eb;
    --lc-primary-dark: #1d4ed8;
    --lc-secondary: #64748b;
    --lc-success: #22c55e;
    --lc-warning: #f59e0b;
    --lc-danger: #ef4444;
    --lc-text: #1e293b;
    --lc-text-light: #64748b;
    --lc-border: #e2e8f0;
    --lc-background: #f8fafc;
    --lc-white: #ffffff;
    --lc-radius: 8px;
    --lc-shadow: 0 1px 3px rgba(0,0,0,0.1);
    --lc-shadow-lg: 0 4px 15px rgba(0,0,0,0.1);
}

/* Course Grid */
.lc-courses-grid {
    display: grid;
    gap: 24px;
}

.lc-columns-2 { grid-template-columns: repeat(2, 1fr); }
.lc-columns-3 { grid-template-columns: repeat(3, 1fr); }
.lc-columns-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .lc-columns-4 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .lc-columns-3,
    .lc-columns-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
    .lc-columns-2,
    .lc-columns-3,
    .lc-columns-4 { grid-template-columns: 1fr; }
}

/* Course Card */
.lc-course-card {
    position: relative;
    background: var(--lc-white);
    border-radius: var(--lc-radius);
    box-shadow: var(--lc-shadow);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}

.lc-course-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--lc-shadow-lg);
}

.lc-course-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.lc-course-thumbnail {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--lc-background);
}

.lc-course-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.lc-course-card:hover .lc-course-thumbnail img {
    transform: scale(1.05);
}

.lc-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
}

.lc-badge-free {
    background: var(--lc-success);
    color: var(--lc-white);
}

.lc-course-info {
    padding: 16px;
}

.lc-course-provider {
    display: block;
    font-size: 12px;
    color: var(--lc-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.lc-course-title {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    margin: 0 0 12px;
    color: var(--lc-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.lc-stars {
    display: inline-block;
    width: 80px;
    height: 16px;
    background: linear-gradient(90deg, #fbbf24 calc(var(--rating) / 5 * 100%), #e5e7eb calc(var(--rating) / 5 * 100%));
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 16'%3E%3Cpath d='M8 0l2.47 5.01L16 5.82l-4 3.9.95 5.5L8 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L8 0zm16 0l2.47 5.01L32 5.82l-4 3.9.95 5.5L24 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L24 0zm16 0l2.47 5.01L48 5.82l-4 3.9.95 5.5L40 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L40 0zm16 0l2.47 5.01L64 5.82l-4 3.9.95 5.5L56 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L56 0zm16 0l2.47 5.01L80 5.82l-4 3.9.95 5.5L72 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L72 0z' fill='black'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 16'%3E%3Cpath d='M8 0l2.47 5.01L16 5.82l-4 3.9.95 5.5L8 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L8 0zm16 0l2.47 5.01L32 5.82l-4 3.9.95 5.5L24 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L24 0zm16 0l2.47 5.01L48 5.82l-4 3.9.95 5.5L40 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L40 0zm16 0l2.47 5.01L64 5.82l-4 3.9.95 5.5L56 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L56 0zm16 0l2.47 5.01L80 5.82l-4 3.9.95 5.5L72 12.77l-5 2.45.95-5.5-4-3.9 5.53-.81L72 0z' fill='black'/%3E%3C/svg%3E");
}

.lc-rating-value {
    font-weight: 600;
    color: var(--lc-text);
}

.lc-reviews-count {
    font-size: 13px;
    color: var(--lc-text-light);
}

.lc-course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.lc-price {
    font-weight: 600;
    color: var(--lc-text);
}

.lc-price.lc-free {
    color: var(--lc-success);
}

.lc-bookmark-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--lc-white);
    box-shadow: var(--lc-shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
    z-index: 10;
}

.lc-bookmark-btn:hover {
    background: var(--lc-primary);
    transform: scale(1.1);
}

.lc-bookmark-btn svg {
    fill: var(--lc-text-light);
    transition: fill 0.2s;
}

.lc-bookmark-btn:hover svg {
    fill: var(--lc-white);
}

.lc-bookmark-btn.is-bookmarked svg {
    fill: var(--lc-primary);
}

/* Search Form */
.lc-search-form {
    max-width: 600px;
    margin: 0 auto;
}

.lc-search-input-wrapper {
    position: relative;
    display: flex;
}

.lc-search-input {
    flex: 1;
    padding: 14px 20px;
    font-size: 16px;
    border: 2px solid var(--lc-border);
    border-radius: var(--lc-radius) 0 0 var(--lc-radius);
    outline: none;
    transition: border-color 0.2s;
}

.lc-search-input:focus {
    border-color: var(--lc-primary);
}

.lc-search-btn {
    padding: 14px 24px;
    background: var(--lc-primary);
    border: none;
    border-radius: 0 var(--lc-radius) var(--lc-radius) 0;
    cursor: pointer;
    transition: background 0.2s;
}

.lc-search-btn:hover {
    background: var(--lc-primary-dark);
}

.lc-search-btn svg {
    fill: var(--lc-white);
}

.lc-search-autocomplete {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--lc-white);
    border: 1px solid var(--lc-border);
    border-radius: var(--lc-radius);
    box-shadow: var(--lc-shadow-lg);
    display: none;
    z-index: 100;
    max-height: 400px;
    overflow-y: auto;
}

.lc-search-autocomplete.is-open {
    display: block;
}

.lc-autocomplete-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--lc-border);
    transition: background 0.2s;
}

.lc-autocomplete-item:last-child {
    border-bottom: none;
}

.lc-autocomplete-item:hover {
    background: var(--lc-background);
}

.lc-autocomplete-item img {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

/* Provider Grid */
.lc-providers-grid {
    display: grid;
    gap: 20px;
}

.lc-provider-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    background: var(--lc-white);
    border-radius: var(--lc-radius);
    box-shadow: var(--lc-shadow);
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
}

.lc-provider-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--lc-shadow-lg);
}

.lc-provider-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 12px;
}

.lc-provider-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.lc-provider-name {
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    margin: 0;
}

/* Subject Grid */
.lc-subjects-grid {
    display: grid;
    gap: 16px;
}

.lc-subject-card {
    display: flex;
    flex-direction: column;
    padding: 20px;
    background: var(--lc-white);
    border-radius: var(--lc-radius);
    border: 1px solid var(--lc-border);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.lc-subject-card:hover {
    border-color: var(--lc-primary);
    box-shadow: var(--lc-shadow);
}

.lc-subject-name {
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 4px;
}

.lc-subject-count {
    font-size: 14px;
    color: var(--lc-text-light);
}

/* Affiliate Button */
.lc-affiliate-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    color: var(--lc-white);
    background: var(--lc-primary);
    border-radius: var(--lc-radius);
    transition: background 0.2s, transform 0.2s;
}

.lc-affiliate-btn:hover {
    background: var(--lc-primary-dark);
    transform: translateY(-1px);
    color: var(--lc-white);
}

/* Affiliate Disclosure */
.lc-affiliate-disclosure {
    margin-top: 24px;
    padding: 12px 16px;
    background: var(--lc-background);
    border-radius: var(--lc-radius);
    font-size: 13px;
    color: var(--lc-text-light);
}

/* No Results */
.lc-no-results,
.lc-no-courses,
.lc-no-bookmarks,
.lc-login-required {
    padding: 40px;
    text-align: center;
    color: var(--lc-text-light);
    background: var(--lc-background);
    border-radius: var(--lc-radius);
}

/* Collection */
.lc-collection {
    margin-bottom: 40px;
}

.lc-collection-title {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 12px;
}

.lc-collection-description {
    color: var(--lc-text-light);
    margin-bottom: 24px;
}

/* Filters */
.lc-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.lc-filter-select {
    padding: 10px 16px;
    font-size: 14px;
    border: 1px solid var(--lc-border);
    border-radius: var(--lc-radius);
    background: var(--lc-white);
    cursor: pointer;
    min-width: 150px;
}

.lc-filter-select:focus {
    outline: none;
    border-color: var(--lc-primary);
}

/* Loading */
.lc-loading {
    display: flex;
    justify-content: center;
    padding: 40px;
}

.lc-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--lc-border);
    border-top-color: var(--lc-primary);
    border-radius: 50%;
    animation: lc-spin 0.8s linear infinite;
}

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

/* Load More Button */
.lc-load-more {
    display: block;
    width: 100%;
    max-width: 200px;
    margin: 40px auto;
    padding: 14px 28px;
    font-size: 16px;
    font-weight: 600;
    color: var(--lc-primary);
    background: var(--lc-white);
    border: 2px solid var(--lc-primary);
    border-radius: var(--lc-radius);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.lc-load-more:hover {
    background: var(--lc-primary);
    color: var(--lc-white);
}

/* Widget Styles */
.lc-widget-courses {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lc-widget-course {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--lc-border);
}

.lc-widget-course:last-child {
    border-bottom: none;
}

.lc-widget-course-thumb {
    flex-shrink: 0;
}

.lc-widget-course-thumb img {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
}

.lc-widget-course-info {
    flex: 1;
    min-width: 0;
}

.lc-widget-course-title {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--lc-text);
    text-decoration: none;
    line-height: 1.3;
    margin-bottom: 4px;
}

.lc-widget-course-title:hover {
    color: var(--lc-primary);
}

.lc-widget-course-meta {
    font-size: 12px;
    color: var(--lc-text-light);
}

.lc-widget-provider {
    margin-right: 8px;
}

.lc-widget-rating {
    color: var(--lc-warning);
}

.lc-widget-price {
    font-weight: 600;
    color: var(--lc-success);
}

/* Widget categories */
.lc-widget-categories {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lc-widget-categories li {
    padding: 8px 0;
    border-bottom: 1px solid var(--lc-border);
}

.lc-widget-categories li:last-child {
    border-bottom: none;
}

.lc-widget-categories a {
    color: var(--lc-text);
    text-decoration: none;
    transition: color 0.2s;
}

.lc-widget-categories a:hover {
    color: var(--lc-primary);
}

.lc-widget-categories .count {
    color: var(--lc-text-light);
    font-size: 12px;
}

/* Widget providers */
.lc-widget-providers {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lc-widget-providers li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--lc-border);
}

.lc-widget-providers li:last-child {
    border-bottom: none;
}

.lc-provider-logo {
    max-height: 24px;
    width: auto;
}

/* Widget search */
.lc-search-form {
    display: flex;
    gap: 8px;
}

.lc-search-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--lc-border);
    border-radius: var(--lc-radius);
    font-size: 14px;
}

.lc-search-button {
    padding: 10px 16px;
    background: var(--lc-primary);
    color: var(--lc-white);
    border: none;
    border-radius: var(--lc-radius);
    cursor: pointer;
    font-weight: 600;
}

.lc-search-button:hover {
    background: var(--lc-primary-dark);
}

/* Widget price filter */
.lc-price-filter {
    list-style: none;
    padding: 0;
    margin: 0;
}

.lc-price-filter li {
    margin-bottom: 8px;
}

.lc-price-filter a {
    display: block;
    padding: 8px 12px;
    border: 1px solid var(--lc-border);
    border-radius: var(--lc-radius);
    text-decoration: none;
    color: var(--lc-text);
    transition: all 0.2s;
}

.lc-price-filter a:hover,
.lc-price-filter a.active {
    background: var(--lc-primary);
    border-color: var(--lc-primary);
    color: var(--lc-white);
}

/* Compare Button */
.lc-compare-btn {
    position: absolute;
    top: 10px;
    right: 52px;
    width: 36px;
    height: 36px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--lc-white);
    box-shadow: var(--lc-shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, transform 0.2s;
    z-index: 10;
}

.lc-compare-btn:hover {
    background: var(--lc-primary);
    transform: scale(1.1);
}

.lc-compare-btn svg {
    width: 18px;
    height: 18px;
    fill: var(--lc-text-light);
    transition: fill 0.2s;
}

.lc-compare-btn:hover svg,
.lc-compare-btn.is-compared svg {
    fill: var(--lc-white);
}

.lc-compare-btn.is-compared {
    background: var(--lc-success);
}

/* Compare Bar (floating) */
.lc-compare-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--lc-white);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
    padding: 16px;
    display: none;
    z-index: 1000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.lc-compare-bar.is-active {
    display: block;
    transform: translateY(0);
}

.lc-compare-bar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.lc-compare-bar-items {
    display: flex;
    gap: 16px;
    flex: 1;
}

.lc-compare-bar-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--lc-background);
    padding: 8px 12px;
    border-radius: var(--lc-radius);
    max-width: 200px;
}

.lc-compare-bar-item img {
    width: 50px;
    height: 35px;
    object-fit: cover;
    border-radius: 4px;
}

.lc-compare-bar-item-title {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

.lc-compare-bar-remove {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--lc-text-light);
    font-size: 18px;
    padding: 0 4px;
}

.lc-compare-bar-remove:hover {
    color: var(--lc-danger);
}

.lc-compare-bar-actions {
    display: flex;
    gap: 12px;
}

.lc-compare-bar-btn {
    padding: 12px 24px;
    font-weight: 600;
    border-radius: var(--lc-radius);
    cursor: pointer;
    transition: all 0.2s;
}

.lc-compare-bar-btn-primary {
    background: var(--lc-primary);
    color: var(--lc-white);
    border: none;
}

.lc-compare-bar-btn-primary:hover {
    background: var(--lc-primary-dark);
}

.lc-compare-bar-btn-secondary {
    background: var(--lc-white);
    color: var(--lc-text);
    border: 1px solid var(--lc-border);
}

.lc-compare-bar-btn-secondary:hover {
    border-color: var(--lc-text-light);
}

/* Toast Notifications */
.lc-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 14px 20px;
    background: var(--lc-text);
    color: var(--lc-white);
    border-radius: var(--lc-radius);
    box-shadow: var(--lc-shadow-lg);
    z-index: 9999;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.lc-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.lc-toast.lc-toast-success {
    background: var(--lc-success);
}

.lc-toast.lc-toast-error {
    background: var(--lc-danger);
}