/**
 * components.css
 * - shadcn/ui 스타일 기반 재사용 컴포넌트
 */

/* ============================================================================
   Buttons
   ============================================================================ */

.btn {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: var(--spacing-sm);
 padding: 0.5rem 1rem;
 font-size: var(--font-size-sm);
 font-weight: 500;
 text-align: center;
 text-decoration: none;
 border: none;
 border-radius: var(--radius-md);
 cursor: pointer;
 transition: all var(--transition-fast);
 min-height: 40px;
 line-height: 1.5;
 white-space: nowrap;
}

.btn:disabled {
 pointer-events: none;
 opacity: 0.5;
}

.btn:focus-visible {
 outline: 2px solid var(--color-primary);
 outline-offset: 2px;
}

.btn-primary {
 background-color: var(--color-primary);
 color: white;
}

.btn-primary:hover {
 background-color: var(--color-primary-hover);
}

.btn-secondary {
 background-color: var(--color-muted);
 color: var(--color-foreground);
 border: 1px solid var(--color-border);
}

.btn-secondary:hover {
 background-color: var(--color-border);
}

.btn-outline {
 background-color: transparent;
 color: var(--color-primary);
 border: 1px solid var(--color-border);
}

.btn-outline:hover {
 background-color: var(--color-muted);
 border-color: var(--color-primary);
}

.btn-ghost {
 background-color: transparent;
 color: var(--color-foreground);
}

.btn-ghost:hover {
 background-color: var(--color-muted);
}

.btn-destructive {
 background-color: var(--color-destructive);
 color: white;
}

.btn-destructive:hover {
 background-color: hsl(0 84.2% 50%);
}

.btn-sm {
 padding: 0.25rem 0.75rem;
 font-size: var(--font-size-xs);
 min-height: 32px;
}

.btn-lg {
 padding: 0.75rem 1.5rem;
 font-size: var(--font-size-base);
 min-height: 48px;
}

.btn-block {
 display: flex;
 width: 100%;
}

.btn-icon {
 width: 40px;
 height: 40px;
 padding: 0;
}

.btn-icon.btn-sm {
 width: 32px;
 height: 32px;
}

/* ============================================================================
   Course Cards
   ============================================================================ */

.courses-grid {
 display: grid;
 grid-template-columns: repeat(3, 1fr);
 gap: var(--spacing-lg);
}

/* 빈 상태가 grid 안에 있을 때 전체 너비 차지 */
.courses-grid > .empty-state {
 grid-column: 1 / -1;
 padding: var(--spacing-2xl);
 background: var(--color-muted);
 border-radius: var(--radius-lg);
 text-align: center;
}

.course-card {
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 overflow: hidden;
 transition: all var(--transition-base);
 cursor: pointer;
 text-decoration: none;
 color: inherit;
 display: block;
}

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

.course-card-thumbnail {
 width: 100%;
 height: 180px;
 object-fit: cover;
 background-color: var(--color-muted);
}

.course-card-content {
 padding: var(--spacing-md);
}

.course-card-title {
 font-size: var(--font-size-base);
 font-weight: 600;
 margin-bottom: var(--spacing-xs);
 display: -webkit-box;
 -webkit-line-clamp: 2;
 -webkit-box-orient: vertical;
 overflow: hidden;
 line-height: 1.4;
}

.course-card-instructor {
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-sm);
}

.course-card-meta {
 display: flex;
 align-items: center;
 justify-content: space-between;
 margin-bottom: var(--spacing-sm);
 font-size: var(--font-size-sm);
}

.course-card-rating {
 display: flex;
 align-items: center;
 gap: var(--spacing-xs);
 color: var(--color-foreground);
}

.star {
 color: var(--color-border);
 font-size: var(--font-size-xs);
}

.star.filled {
 color: var(--color-warning);
}

.star.half {
 color: var(--color-warning);
 opacity: 0.5;
}

.course-card-price {
 font-size: var(--font-size-base);
 font-weight: 700;
 color: var(--color-foreground);
}

.course-card-students {
 color: var(--color-muted-foreground);
 font-size: var(--font-size-xs);
}

/* ============================================================================
   Video Player
   ============================================================================ */

.video-player-container {
 position: relative;
 width: 100%;
 background: var(--color-foreground);
 border-radius: var(--radius-lg);
 overflow: hidden;
 margin-bottom: var(--spacing-lg);
 aspect-ratio: 16 / 9;
}

.video-player {
 width: 100%;
 height: 100%;
 display: block;
}

.video-error {
 position: absolute;
 top: 50%;
 left: 50%;
 transform: translate(-50%, -50%);
 text-align: center;
 color: white;
 background: rgba(0, 0, 0, 0.9);
 padding: var(--spacing-lg);
 border-radius: var(--radius-lg);
}

/* ============================================================================
   Progress
   ============================================================================ */

.progress-section {
 background: var(--color-muted);
 padding: var(--spacing-md);
 border-radius: var(--radius-lg);
 margin-bottom: var(--spacing-lg);
}

.progress-header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: var(--spacing-sm);
}

.progress-percentage {
 font-size: var(--font-size-lg);
 font-weight: 700;
 color: var(--color-foreground);
}

.progress-bar {
 width: 100%;
 height: 8px;
 background: var(--color-border);
 border-radius: var(--radius-full);
 overflow: hidden;
 margin-bottom: var(--spacing-xs);
}

.progress-fill {
 height: 100%;
 background: var(--color-primary);
 transition: width var(--transition-slow);
 border-radius: var(--radius-full);
}

.progress-info {
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
}

/* ============================================================================
   Player Layout
   ============================================================================ */

.player-layout {
 display: grid;
 grid-template-columns: 1fr 320px;
 gap: var(--spacing-lg);
}

.player-main {
 min-width: 0;
}

.player-sidebar {
 min-width: 0;
}

.lesson-navigation {
 display: flex;
 gap: var(--spacing-sm);
 margin-bottom: var(--spacing-lg);
}

.lesson-navigation button {
 flex: 1;
}

.lesson-complete {
 padding: var(--spacing-md);
 background: var(--color-muted);
 border-radius: var(--radius-lg);
 border: 1px solid var(--color-border);
}

.lesson-complete label {
 display: flex;
 align-items: center;
 gap: var(--spacing-sm);
 cursor: pointer;
 font-size: var(--font-size-sm);
}

/* ============================================================================
   Curriculum
   ============================================================================ */

.curriculum {
 margin-bottom: var(--spacing-lg);
}

.curriculum h3 {
 font-size: var(--font-size-base);
 font-weight: 600;
 margin-bottom: var(--spacing-md);
}

.curriculum-section {
 margin-bottom: var(--spacing-md);
}

.curriculum-section h4 {
 font-size: var(--font-size-sm);
 font-weight: 600;
 margin-bottom: var(--spacing-xs);
 color: var(--color-muted-foreground);
}

.lesson-list {
 list-style: none;
}

.lesson-item {
 padding: var(--spacing-sm) var(--spacing-md);
 border-radius: var(--radius-md);
 margin-bottom: 2px;
 border: 1px solid transparent;
}

.lesson-item a {
 color: var(--color-foreground);
 text-decoration: none;
 display: block;
 font-size: var(--font-size-sm);
}

.lesson-item:hover {
 background-color: var(--color-muted);
}

.lesson-item.active {
 background-color: var(--color-primary);
 color: white;
}

.lesson-item.active a {
 color: white;
}

.lesson-item.completed a::after {
 content: " [Completed]";
 color: var(--color-success);
 font-size: var(--font-size-xs);
}

.lesson-item.active.completed a::after {
 color: white;
}

/* ============================================================================
   Filters
   ============================================================================ */

.filter-sidebar {
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 padding: var(--spacing-lg);
 margin-bottom: var(--spacing-lg);
}

.filter-group {
 margin-bottom: var(--spacing-lg);
}

.filter-group:last-child {
 margin-bottom: 0;
}

.filter-group h3 {
 font-size: var(--font-size-sm);
 font-weight: 600;
 margin-bottom: var(--spacing-sm);
}

.filter-option {
 display: flex;
 align-items: center;
 gap: var(--spacing-sm);
 margin-bottom: var(--spacing-xs);
 cursor: pointer;
}

.filter-option input[type="checkbox"],
.filter-option input[type="radio"] {
 cursor: pointer;
 width: 16px;
 height: 16px;
}

.filter-option label {
 cursor: pointer;
 flex: 1;
 font-size: var(--font-size-sm);
}

/* Sort Controls */
.sort-controls {
 display: flex;
 align-items: center;
 justify-content: space-between;
 margin-bottom: var(--spacing-lg);
 gap: var(--spacing-md);
}

.sort-select {
 padding: var(--spacing-sm) var(--spacing-md);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-md);
 font-size: var(--font-size-sm);
 cursor: pointer;
 background-color: var(--color-background);
}

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

.pagination {
 display: flex;
 justify-content: center;
 align-items: center;
 gap: var(--spacing-xs);
 margin-top: var(--spacing-xl);
}

.pagination button {
 padding: var(--spacing-sm) var(--spacing-md);
 border: 1px solid var(--color-border);
 background-color: var(--color-background);
 border-radius: var(--radius-md);
 cursor: pointer;
 min-width: 40px;
 font-size: var(--font-size-sm);
 transition: all var(--transition-fast);
}

.pagination button:hover:not(:disabled) {
 background-color: var(--color-muted);
}

.pagination button.active {
 background-color: var(--color-primary);
 color: white;
 border-color: var(--color-primary);
}

.pagination button:disabled {
 opacity: 0.5;
 cursor: not-allowed;
}

/* ============================================================================
   Reviews
   ============================================================================ */

.review-card {
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md);
 margin-bottom: var(--spacing-md);
}

.review-header {
 display: flex;
 align-items: center;
 justify-content: space-between;
 margin-bottom: var(--spacing-sm);
}

.review-author {
 font-weight: 600;
 font-size: var(--font-size-sm);
}

.review-date {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
}

.review-rating {
 display: flex;
 align-items: center;
 gap: 2px;
 margin-bottom: var(--spacing-sm);
}

.review-content {
 color: var(--color-foreground);
 line-height: 1.6;
 font-size: var(--font-size-sm);
}

/* ============================================================================
   Categories
   ============================================================================ */

.categories-grid {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
 gap: var(--spacing-md);
}

.category-card {
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 overflow: hidden;
 cursor: pointer;
 transition: all var(--transition-base);
 text-align: center;
}

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

.category-card img {
 width: 100%;
 height: 120px;
 object-fit: cover;
}

.category-card h3 {
 padding: var(--spacing-md);
 font-size: var(--font-size-base);
 font-weight: 600;
}

/* ============================================================================
   Breadcrumb
   ============================================================================ */

.breadcrumb {
 margin-bottom: var(--spacing-lg);
}

.breadcrumb-link {
 display: inline-flex;
 align-items: center;
 gap: var(--spacing-xs);
 color: var(--color-muted-foreground);
 text-decoration: none;
 font-size: var(--font-size-sm);
 font-weight: 500;
 padding: var(--spacing-xs) var(--spacing-sm);
 border-radius: var(--radius-md);
 transition: all var(--transition-fast);
}

.breadcrumb-link:hover {
 color: var(--color-primary);
 background-color: var(--color-muted);
}

.breadcrumb-link:focus-visible {
 outline: 2px solid var(--color-primary);
 outline-offset: 2px;
}

.breadcrumb-link svg {
 flex-shrink: 0;
}

/* ============================================================================
   Course Detail
   ============================================================================ */

.course-detail-header {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: var(--spacing-xl);
 margin-bottom: var(--spacing-2xl);
}

.course-detail-thumbnail img {
 width: 100%;
 border-radius: var(--radius-lg);
}

.course-detail-info h1 {
 font-size: var(--font-size-2xl);
 font-weight: 700;
 margin-bottom: var(--spacing-md);
 line-height: 1.3;
}

.course-instructor {
 font-size: var(--font-size-base);
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-md);
}

.course-meta {
 display: flex;
 align-items: center;
 gap: var(--spacing-lg);
 margin-bottom: var(--spacing-md);
 flex-wrap: wrap;
}

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

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

.course-students {
 color: var(--color-muted-foreground);
 font-size: var(--font-size-sm);
}

.course-details {
 display: flex;
 gap: var(--spacing-sm);
 margin-bottom: var(--spacing-md);
 flex-wrap: wrap;
}

.course-category,
.course-level,
.course-duration {
 padding: var(--spacing-xs) var(--spacing-sm);
 background-color: var(--color-muted);
 border-radius: var(--radius-md);
 font-size: var(--font-size-xs);
}

.course-price {
 font-size: var(--font-size-2xl);
 font-weight: 700;
 color: var(--color-foreground);
 margin-bottom: var(--spacing-md);
}

.course-actions {
 margin-top: var(--spacing-md);
}

.course-detail-body {
 margin-top: var(--spacing-2xl);
}

.course-description {
 margin-bottom: var(--spacing-2xl);
}

.course-description h2,
.course-curriculum h2,
.course-reviews-section h2 {
 font-size: var(--font-size-xl);
 font-weight: 700;
 margin-bottom: var(--spacing-md);
}

.course-description p {
 line-height: 1.8;
 color: var(--color-foreground);
}

.curriculum-content {
 background-color: var(--color-muted);
 padding: var(--spacing-lg);
 border-radius: var(--radius-lg);
}

.curriculum-lessons {
 list-style: none;
}

.curriculum-lesson {
 display: flex;
 align-items: center;
 gap: var(--spacing-md);
 padding: var(--spacing-md);
 border-bottom: 1px solid var(--color-border);
}

.curriculum-lesson:last-child {
 border-bottom: none;
}

.lesson-icon {
 color: var(--color-primary);
}

.lesson-title {
 flex: 1;
 font-size: var(--font-size-sm);
}

.lesson-duration {
 color: var(--color-muted-foreground);
 font-size: var(--font-size-xs);
}

.preview-badge {
 padding: 2px var(--spacing-xs);
 background-color: var(--color-primary);
 color: white;
 border-radius: var(--radius-sm);
 font-size: var(--font-size-xs);
}

.reviews-summary {
 margin-bottom: var(--spacing-lg);
}

.reviews-average {
 display: flex;
 align-items: center;
 gap: var(--spacing-md);
}

.reviews-rating {
 font-size: var(--font-size-2xl);
 font-weight: 700;
}

.reviews-stars {
 display: flex;
 gap: 2px;
}

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

/* Rating Input */
.rating-input {
 display: flex;
 gap: var(--spacing-xs);
 flex-direction: row-reverse;
}

.rating-input input[type="radio"] {
 display: none;
}

.rating-input .star-label {
 font-size: var(--font-size-xl);
 color: var(--color-border);
 cursor: pointer;
 transition: color var(--transition-fast);
}

.rating-input input[type="radio"]:checked ~ .star-label,
.rating-input input[type="radio"]:checked + .star-label,
.rating-input .star-label:hover,
.rating-input .star-label:hover ~ .star-label {
 color: var(--color-warning);
}

.form-actions {
 display: flex;
 gap: var(--spacing-md);
 margin-top: var(--spacing-md);
}

/* ============================================================================
   Forms
   ============================================================================ */

.form-group {
 margin-bottom: var(--spacing-md);
}

.form-group label {
 display: block;
 margin-bottom: var(--spacing-xs);
 font-weight: 500;
 font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
 width: 100%;
 padding: var(--spacing-sm) var(--spacing-md);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-md);
 font-size: var(--font-size-sm);
 font-family: inherit;
 background-color: var(--color-background);
 transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
 outline: none;
 border-color: var(--color-primary);
 box-shadow: 0 0 0 2px hsl(var(--primary) / 0.1);
}

.form-group input:focus-visible,
.form-group textarea:focus-visible,
.form-group select:focus-visible {
 outline: none;
}

.form-group textarea {
 resize: vertical;
 min-height: 100px;
}

.form-error {
 color: var(--color-destructive);
 font-size: var(--font-size-xs);
 margin-top: var(--spacing-xs);
}

.courses-layout {
 display: grid;
 grid-template-columns: 250px 1fr;
 gap: var(--spacing-xl);
}

/* ============================================================================
   Dashboard
   ============================================================================ */

.dashboard-section {
 padding: var(--spacing-2xl) 0;
}

.dashboard-summary {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
 gap: var(--spacing-md);
 margin-bottom: var(--spacing-2xl);
}

.summary-card {
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 padding: var(--spacing-lg);
 text-align: center;
}

.summary-card h3 {
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-sm);
 font-weight: 500;
}

.summary-value {
 font-size: var(--font-size-2xl);
 font-weight: 700;
 color: var(--color-foreground);
}

.dashboard-section-content {
 margin-bottom: var(--spacing-2xl);
}

.dashboard-section-content h2 {
 font-size: var(--font-size-xl);
 font-weight: 700;
 margin-bottom: var(--spacing-md);
}

.course-progress {
 margin: var(--spacing-sm) 0;
}

.progress-text {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
 margin-top: var(--spacing-xs);
 display: block;
}

/* Dashboard Header */
.dashboard-header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 flex-wrap: wrap;
 gap: var(--spacing-md);
 margin-bottom: var(--spacing-lg);
}

.dashboard-header .section-title {
 margin-bottom: 0;
}

/* ============================================================================
   Auth Pages
   ============================================================================ */

.auth-section {
 min-height: calc(100vh - 200px);
 display: flex;
 align-items: center;
 justify-content: center;
 padding: var(--spacing-2xl) 0;
}

.auth-container {
 max-width: 400px;
 width: 100%;
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-xl);
 padding: var(--spacing-2xl);
}

.auth-container h1 {
 text-align: center;
 font-size: var(--font-size-xl);
 margin-bottom: var(--spacing-xl);
}

.auth-form {
 margin-bottom: var(--spacing-lg);
}

.auth-footer {
 text-align: center;
 color: var(--color-muted-foreground);
 font-size: var(--font-size-sm);
}

.auth-footer a {
 color: var(--color-primary);
 text-decoration: none;
 font-weight: 500;
}

.auth-footer a:hover {
 text-decoration: underline;
}

/* ============================================================================
   Profile
   ============================================================================ */

.profile-section {
 padding: var(--spacing-2xl) 0;
}

.profile-header {
 display: flex;
 align-items: center;
 gap: var(--spacing-xl);
 margin-bottom: var(--spacing-2xl);
 padding: var(--spacing-xl);
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-xl);
}

.avatar-circle {
 width: 80px;
 height: 80px;
 border-radius: var(--radius-full);
 background-color: var(--color-primary);
 color: white;
 display: flex;
 align-items: center;
 justify-content: center;
 font-size: var(--font-size-2xl);
 font-weight: 700;
}

.profile-info h1 {
 font-size: var(--font-size-xl);
 margin-bottom: var(--spacing-xs);
}

.profile-email {
 color: var(--color-muted-foreground);
 font-size: var(--font-size-sm);
 margin-bottom: var(--spacing-xs);
}

.profile-role {
 display: inline-block;
 padding: var(--spacing-xs) var(--spacing-sm);
 background-color: var(--color-muted);
 border-radius: var(--radius-md);
 font-size: var(--font-size-xs);
 margin-bottom: var(--spacing-xs);
}

.profile-joined {
 color: var(--color-muted-foreground);
 font-size: var(--font-size-xs);
}

.profile-stats {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
 gap: var(--spacing-md);
 margin-bottom: var(--spacing-2xl);
}

.stat-card {
 background-color: var(--color-card);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 padding: var(--spacing-lg);
 text-align: center;
}

.stat-card h3 {
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-sm);
}

.stat-value {
 font-size: var(--font-size-2xl);
 font-weight: 700;
 color: var(--color-foreground);
}

.profile-courses {
 margin-top: var(--spacing-2xl);
}

.profile-courses h2 {
 font-size: var(--font-size-xl);
 font-weight: 700;
 margin-bottom: var(--spacing-md);
}

/* ============================================================================
   Enrolled Status
   ============================================================================ */

.enrolled-status {
 display: flex;
 flex-direction: column;
 gap: var(--spacing-md);
}

.enrolled-badge {
 display: inline-flex;
 align-items: center;
 gap: var(--spacing-xs);
 background-color: var(--color-success);
 color: white;
 padding: var(--spacing-xs) var(--spacing-sm);
 border-radius: var(--radius-full);
 font-weight: 600;
 font-size: var(--font-size-xs);
 width: fit-content;
}

.enrolled-icon {
 display: flex;
 align-items: center;
 justify-content: center;
 width: 16px;
 height: 16px;
 background: white;
 color: var(--color-success);
 border-radius: var(--radius-full);
 font-size: 10px;
 font-weight: 700;
}

.enrolled-progress {
 background: var(--color-muted);
 border-radius: var(--radius-lg);
 padding: var(--spacing-md);
 border: 1px solid var(--color-border);
}

.enrolled-progress .progress-info {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: var(--spacing-xs);
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
}

.enrolled-progress .progress-percentage {
 font-weight: 600;
 color: var(--color-foreground);
}

.enrolled-progress .progress-bar {
 height: 6px;
 background: var(--color-border);
 border-radius: var(--radius-full);
 overflow: hidden;
}

.enrolled-progress .progress-fill {
 height: 100%;
 background: var(--color-primary);
 border-radius: var(--radius-full);
 transition: width var(--transition-slow);
}

.enrolled-progress .progress-detail {
 margin-top: var(--spacing-xs);
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
 text-align: right;
}

/* ============================================================================
   Header Cart Icon
   ============================================================================ */

.cart-icon-link {
 position: relative;
 display: flex;
 align-items: center;
 justify-content: center;
 width: 40px;
 height: 40px;
 text-decoration: none;
 border-radius: var(--radius-lg);
 transition: background-color var(--transition-fast);
 color: var(--color-foreground);
}

.cart-icon-link:hover {
 background-color: var(--color-muted);
}

.cart-icon {
 font-size: var(--font-size-base);
}

.cart-badge {
 position: absolute;
 top: 2px;
 right: 2px;
 background: var(--color-destructive);
 color: white;
 font-size: 10px;
 font-weight: 700;
 min-width: 16px;
 height: 16px;
 border-radius: var(--radius-full);
 display: flex;
 align-items: center;
 justify-content: center;
 padding: 0 4px;
}

/* ============================================================================
   Purchase Buttons
   ============================================================================ */

.purchase-buttons {
 display: flex;
 flex-direction: column;
 gap: var(--spacing-sm);
}

.purchase-buttons .btn {
 text-align: center;
}

/* ============================================================================
   Cart Page
   ============================================================================ */

.cart-section {
 padding: var(--spacing-2xl) 0;
 min-height: 60vh;
}

.cart-layout {
 display: grid;
 grid-template-columns: 1fr 360px;
 gap: var(--spacing-xl);
 align-items: start;
}

/* 장바구니가 비어있을 때 1열 레이아웃 */
.cart-layout:has(.empty-cart) {
 grid-template-columns: 1fr;
}

@media (max-width: 992px) {
 .cart-layout {
  grid-template-columns: 1fr;
 }
}

.empty-cart {
 text-align: center;
 padding: var(--spacing-3xl) var(--spacing-lg);
 background: var(--color-muted);
 border-radius: var(--radius-xl);
 grid-column: 1 / -1;
}

.empty-cart-icon {
 font-size: var(--font-size-3xl);
 margin-bottom: var(--spacing-md);
 color: var(--color-muted-foreground);
}

.empty-cart h2 {
 font-size: var(--font-size-xl);
 margin-bottom: var(--spacing-xs);
}

.empty-cart p {
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-lg);
}

.cart-header {
 padding-bottom: var(--spacing-md);
 border-bottom: 1px solid var(--color-border);
 margin-bottom: var(--spacing-md);
}

.cart-count {
 font-weight: 600;
 font-size: var(--font-size-sm);
}

.cart-item {
 display: flex;
 align-items: center;
 gap: var(--spacing-md);
 padding: var(--spacing-md);
 background: var(--color-card);
 border-radius: var(--radius-lg);
 border: 1px solid var(--color-border);
 margin-bottom: var(--spacing-sm);
}

.cart-item-thumbnail {
 flex-shrink: 0;
 width: 120px;
 height: 68px;
 border-radius: var(--radius-md);
 overflow: hidden;
}

.cart-item-thumbnail img {
 width: 100%;
 height: 100%;
 object-fit: cover;
}

.cart-item-info {
 flex: 1;
 min-width: 0;
}

.cart-item-title {
 font-size: var(--font-size-sm);
 font-weight: 600;
 margin-bottom: var(--spacing-xs);
}

.cart-item-title a {
 color: var(--color-foreground);
 text-decoration: none;
}

.cart-item-title a:hover {
 color: var(--color-primary);
}

.cart-item-instructor {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-xs);
}

.cart-item-meta {
 display: flex;
 gap: var(--spacing-md);
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
}

.cart-item-price {
 font-weight: 700;
 color: var(--color-foreground);
 white-space: nowrap;
 font-size: var(--font-size-sm);
 flex-shrink: 0;
}

.remove-item-btn {
 flex-shrink: 0;
 width: 36px;
 height: 36px;
 border: none;
 background: transparent;
 border-radius: var(--radius-md);
 cursor: pointer;
 color: var(--color-muted-foreground);
 transition: all var(--transition-fast);
 display: flex;
 align-items: center;
 justify-content: center;
 margin-left: var(--spacing-sm);
}

.remove-item-btn:hover {
 background: hsl(0 84.2% 60.2% / 0.1);
 color: var(--color-destructive);
}

/* Cart/Checkout Summary */
.cart-summary .summary-card,
.checkout-summary .summary-card {
 background: var(--color-card);
 border-radius: var(--radius-xl);
 border: 1px solid var(--color-border);
 padding: var(--spacing-lg);
}

.cart-summary .summary-card.sticky,
.checkout-summary .summary-card.sticky {
 position: sticky;
 top: calc(var(--spacing-lg) + 72px);
}

.summary-card h2 {
 font-size: var(--font-size-base);
 font-weight: 600;
 margin-bottom: var(--spacing-md);
}

.summary-row {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: var(--spacing-xs) 0;
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
}

.summary-row.total {
 font-size: var(--font-size-base);
 font-weight: 600;
 color: var(--color-foreground);
}

.summary-row .total-price {
 font-size: var(--font-size-lg);
 color: var(--color-foreground);
}

.summary-row .discount {
 color: var(--color-destructive);
}

.summary-divider {
 height: 1px;
 background: var(--color-border);
 margin: var(--spacing-md) 0;
}

.checkout-btn {
 font-size: var(--font-size-base);
 padding: var(--spacing-md);
}

/* ============================================================================
   Checkout Page
   ============================================================================ */

.checkout-section {
 padding: var(--spacing-2xl) 0;
 min-height: 60vh;
}

.checkout-layout {
 display: grid;
 grid-template-columns: 1fr 360px;
 gap: var(--spacing-xl);
 align-items: start;
}

@media (max-width: 992px) {
 .checkout-layout {
  grid-template-columns: 1fr;
 }
}

.checkout-card {
 background: var(--color-card);
 border-radius: var(--radius-xl);
 border: 1px solid var(--color-border);
 padding: var(--spacing-lg);
 margin-bottom: var(--spacing-md);
}

.checkout-card h2 {
 font-size: var(--font-size-base);
 font-weight: 600;
 margin-bottom: var(--spacing-md);
 padding-bottom: var(--spacing-sm);
 border-bottom: 1px solid var(--color-border);
}

.order-item {
 display: flex;
 gap: var(--spacing-md);
 padding: var(--spacing-sm) 0;
 border-bottom: 1px solid var(--color-muted);
}

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

.order-item-thumbnail {
 flex-shrink: 0;
 width: 80px;
 height: 45px;
 border-radius: var(--radius-md);
 overflow: hidden;
}

.order-item-thumbnail img {
 width: 100%;
 height: 100%;
 object-fit: cover;
}

.order-item-info {
 flex: 1;
 min-width: 0;
}

.order-item-info h3 {
 font-size: var(--font-size-sm);
 font-weight: 600;
 margin-bottom: 2px;
}

.order-item-info p {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
}

.order-item-price {
 font-weight: 600;
 color: var(--color-foreground);
 font-size: var(--font-size-sm);
 white-space: nowrap;
}

/* Payment Methods */
.payment-methods {
 display: flex;
 flex-direction: column;
 gap: var(--spacing-sm);
}

.payment-method-option {
 display: block;
 cursor: pointer;
}

.payment-method-option input {
 display: none;
}

.payment-method-label {
 display: flex;
 align-items: center;
 gap: var(--spacing-md);
 padding: var(--spacing-md);
 border: 1px solid var(--color-border);
 border-radius: var(--radius-lg);
 transition: all var(--transition-fast);
}

.payment-method-option input:checked + .payment-method-label {
 border-color: var(--color-primary);
 background: var(--color-muted);
}

.payment-icon {
 font-size: var(--font-size-lg);
 width: 24px;
 text-align: center;
}

.payment-name {
 font-weight: 500;
 font-size: var(--font-size-sm);
}

/* Terms Agreement */
.terms-agreement {
 display: flex;
 flex-direction: column;
 gap: var(--spacing-sm);
}

.checkbox-label {
 display: flex;
 align-items: center;
 gap: var(--spacing-sm);
 cursor: pointer;
 font-size: var(--font-size-sm);
}

.checkbox-label input[type="checkbox"] {
 width: 16px;
 height: 16px;
 cursor: pointer;
}

.terms-list {
 padding-left: var(--spacing-lg);
 display: flex;
 flex-direction: column;
 gap: var(--spacing-xs);
}

.terms-list .checkbox-label {
 color: var(--color-muted-foreground);
 font-size: var(--font-size-xs);
}

.pay-btn {
 font-size: var(--font-size-base);
 padding: var(--spacing-md);
}

.checkout-notice {
 text-align: center;
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
 margin-top: var(--spacing-sm);
}

.payment-complete-info {
 text-align: left;
 background: var(--color-muted);
 padding: var(--spacing-md);
 border-radius: var(--radius-lg);
 margin-top: var(--spacing-sm);
}

.payment-complete-info p {
 margin-bottom: var(--spacing-xs);
 font-size: var(--font-size-sm);
}

.payment-complete-info p:last-child {
 margin-bottom: 0;
}

/* ============================================================================
   Orders Page
   ============================================================================ */

.orders-section {
 padding: var(--spacing-2xl) 0;
 min-height: 60vh;
}

.empty-orders {
 text-align: center;
 padding: var(--spacing-3xl) var(--spacing-lg);
 background: var(--color-muted);
 border-radius: var(--radius-xl);
}

.empty-orders-icon {
 font-size: var(--font-size-3xl);
 margin-bottom: var(--spacing-md);
 color: var(--color-muted-foreground);
}

.empty-orders h2 {
 font-size: var(--font-size-xl);
 margin-bottom: var(--spacing-xs);
}

.empty-orders p {
 color: var(--color-muted-foreground);
 margin-bottom: var(--spacing-lg);
}

.order-card {
 background: var(--color-card);
 border-radius: var(--radius-xl);
 border: 1px solid var(--color-border);
 margin-bottom: var(--spacing-md);
 overflow: hidden;
}

.order-header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: var(--spacing-md);
 background: var(--color-muted);
 border-bottom: 1px solid var(--color-border);
}

.order-info {
 display: flex;
 flex-direction: column;
 gap: 2px;
}

.order-id {
 font-weight: 600;
 font-size: var(--font-size-sm);
}

.order-date {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
}

.order-status {
 padding: var(--spacing-xs) var(--spacing-sm);
 border-radius: var(--radius-full);
 font-size: var(--font-size-xs);
 font-weight: 600;
}

.status-completed {
 background: hsl(142.1 76.2% 36.3% / 0.1);
 color: var(--color-success);
}

.status-pending {
 background: hsl(47.9 95.8% 53.1% / 0.2);
 color: hsl(26 83.3% 14.1%);
}

.status-cancelled,
.status-refunded {
 background: var(--color-muted);
 color: var(--color-muted-foreground);
}

.order-items {
 padding: var(--spacing-md);
}

.order-card .order-item {
 display: flex;
 gap: var(--spacing-md);
 padding: var(--spacing-sm) 0;
 border-bottom: 1px solid var(--color-muted);
 align-items: center;
}

.order-card .order-item:last-child {
 border-bottom: none;
}

.order-card .order-item.refunded {
 opacity: 0.6;
}

.order-card .order-item-thumbnail {
 width: 60px;
 height: 34px;
}

.order-card .order-item-info {
 flex: 1;
}

.order-card .order-item-info h3 {
 font-size: var(--font-size-sm);
 margin-bottom: 2px;
}

.order-card .order-item-info h3 a {
 color: var(--color-foreground);
 text-decoration: none;
}

.order-card .order-item-info h3 a:hover {
 color: var(--color-primary);
}

.refund-badge {
 display: inline-block;
 background: var(--color-muted);
 color: var(--color-muted-foreground);
 font-size: var(--font-size-xs);
 padding: 2px 6px;
 border-radius: var(--radius-sm);
 margin-right: var(--spacing-xs);
}

.refund-date {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
}

.order-card .order-item-price {
 text-align: right;
}

.order-card .order-item-price.refunded .original-price {
 text-decoration: line-through;
 color: var(--color-muted-foreground);
 font-size: var(--font-size-xs);
}

.order-card .order-item-price .refund-amount {
 display: block;
 color: var(--color-destructive);
 font-size: var(--font-size-sm);
}

.btn-danger {
 background-color: var(--color-destructive);
 color: white;
 border: none;
}

.btn-danger:hover {
 background-color: hsl(0 84.2% 50%);
}

.no-refund-notice {
 font-size: var(--font-size-xs);
 color: var(--color-muted-foreground);
}

.order-footer {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: var(--spacing-md);
 background: var(--color-muted);
 border-top: 1px solid var(--color-border);
}

.payment-method {
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
}

.order-total {
 text-align: right;
}

.order-total span:first-child {
 font-size: var(--font-size-sm);
 color: var(--color-muted-foreground);
 margin-right: var(--spacing-sm);
}

.total-amount {
 font-size: var(--font-size-lg);
 font-weight: 700;
 color: var(--color-foreground);
}

/* ============================================================================
   Section Header with Navigation
   ============================================================================ */

.section-header {
 display: flex;
 justify-content: space-between;
 align-items: center;
 margin-bottom: var(--spacing-lg);
}

.section-header .section-title {
 margin-bottom: 0;
}

.section-link {
 display: inline-flex;
 align-items: center;
 gap: var(--spacing-xs);
 font-size: var(--font-size-sm);
 font-weight: 500;
 color: var(--color-muted-foreground);
 text-decoration: none;
 transition: color var(--transition-fast);
}

.section-link:hover {
 color: var(--color-primary);
}

.section-link svg {
 transition: transform var(--transition-fast);
}

.section-link:hover svg {
 transform: translateX(2px);
}

/* 검색 결과 페이지 타이틀 */
.courses-section .section-title {
 display: flex;
 align-items: center;
 flex-wrap: wrap;
 gap: var(--spacing-md);
}

.back-to-all-link {
 display: inline-flex;
 align-items: center;
 gap: var(--spacing-xs);
 font-size: var(--font-size-sm);
 font-weight: 500;
 color: var(--color-primary);
 text-decoration: none;
 transition: color var(--transition-fast);
}

.back-to-all-link:hover {
 color: var(--color-primary-hover);
}

.back-to-all-link svg {
 transition: transform var(--transition-fast);
}

.back-to-all-link:hover svg {
 transform: translateX(2px);
}

/* ============================================================================
   Swiper Container with Side Navigation
   ============================================================================ */

.swiper-container {
 position: relative;
}

.swiper-nav-btn {
 position: absolute;
 top: 50%;
 transform: translateY(-50%);
 z-index: 10;
 display: flex;
 align-items: center;
 justify-content: center;
 width: 44px;
 height: 44px;
 border: 1px solid rgba(0, 0, 0, 0.1);
 border-radius: var(--radius-full);
 background: rgba(255, 255, 255, 0.85);
 color: var(--color-foreground);
 cursor: pointer;
 transition: all var(--transition-fast);
 box-shadow: var(--shadow-md);
}

.swiper-nav-btn:hover:not(:disabled) {
 background: rgba(255, 255, 255, 0.95);
 color: var(--color-foreground);
 border-color: rgba(0, 0, 0, 0.15);
}

.swiper-nav-btn:focus-visible {
 outline: 2px solid var(--color-primary);
 outline-offset: 2px;
}

.swiper-nav-btn:disabled,
.swiper-nav-btn.swiper-button-disabled {
 opacity: 0.4;
 cursor: not-allowed;
}

.swiper-nav-btn.swiper-button-lock {
 display: flex;
}

.swiper-nav-prev {
 left: -22px;
}

.swiper-nav-next {
 right: -22px;
}

/* 모바일에서 버튼 숨기기 */
@media (max-width: 768px) {
 .swiper-nav-btn {
  display: none;
 }
}

/* ============================================================================
   Courses Swiper
   ============================================================================ */

.courses-swiper {
 overflow: hidden;
}

.courses-swiper .swiper-slide {
 height: auto;
}

.courses-swiper .course-card {
 height: 100%;
 display: flex;
 flex-direction: column;
}

.courses-swiper .course-card-content {
 flex: 1;
 display: flex;
 flex-direction: column;
}

.courses-swiper .course-card-price {
 margin-top: auto;
}

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

@media (max-width: 768px) {
 .course-detail-header {
  grid-template-columns: 1fr;
 }

 .hero-layout {
  grid-template-columns: 1fr;
 }

 .player-layout {
  grid-template-columns: 1fr;
 }

 .courses-layout {
  grid-template-columns: 1fr;
 }

 .dashboard-header {
  flex-direction: column;
  align-items: flex-start;
 }

 .dashboard-header .btn {
  width: 100%;
  justify-content: center;
 }

 .cart-item {
  flex-wrap: wrap;
 }

 .cart-item-thumbnail {
  width: 80px;
  height: 45px;
 }

 .cart-item-price {
  width: 100%;
  text-align: right;
  margin-top: var(--spacing-sm);
 }

 .order-header {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-sm);
 }

 .order-footer {
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: flex-start;
 }

 .order-total {
  text-align: left;
  width: 100%;
 }
}