/* ============================================
   SPEECH EZ SKOOL — Classroom / LMS
   ============================================ */

/* --- Course Catalog --- */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

/* --- Course Card --- */
.course-card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.04);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.course-card__cover {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary-100), var(--color-accent-100));
}

.course-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.course-card__cover-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(30, 42, 58, 0.6) 0%, transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-lg);
}

.course-card__cover-icon {
  font-size: 48px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.8;
}

.course-card__module-count {
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.course-card__body {
  padding: var(--space-lg);
}

.course-card__title {
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: var(--space-xs);
}

.course-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.course-card__progress-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.course-card__progress-text {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-primary);
}

/* Locked Course Overlay */
.course-card--locked {
  position: relative;
}

.course-card--locked::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(2px);
  border-radius: var(--radius-lg);
  z-index: 1;
}

.course-card__lock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
}

.course-card__lock-icon {
  font-size: 36px;
  margin-bottom: var(--space-sm);
}

.course-card__lock-text {
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-navy);
  margin: 0;
}

.course-card__lock-level {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin: 0;
}

/* --- Course Detail View --- */
.course-detail {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-xl);
}

.course-detail__main {
  min-width: 0;
}

.course-detail__sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-xl));
  align-self: flex-start;
  max-height: calc(100vh - var(--header-height) - var(--space-xl) * 2);
  overflow-y: auto;
}

/* Video Player */
.lesson-player {
  background: var(--color-navy);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-xl);
  position: relative;
}

.lesson-player__placeholder {
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

.lesson-player__placeholder-icon {
  font-size: 64px;
  margin-bottom: var(--space-md);
  display: block;
}

.lesson-player__placeholder-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

.lesson-player__placeholder-sub {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.5);
  margin: var(--space-xs) 0 0;
}

.lesson-player iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Lesson Info */
.lesson-info {
  margin-bottom: var(--space-xl);
}

.lesson-info__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
}

.lesson-info__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.lesson-info__meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.lesson-info__description {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  color: var(--color-text-light);
}

.lesson-info__resources {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-cream);
  border-radius: var(--radius-md);
}

.lesson-info__resources-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.lesson-info__resource-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: 500;
}

.lesson-info__resource-link:hover {
  color: var(--color-primary-dark);
}

/* Module Sidebar */
.module-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.module {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.module__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.module__header:hover {
  background: var(--color-cream);
}

.module__header-icon {
  font-size: 14px;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.module--open .module__header-icon {
  transform: rotate(90deg);
}

.module__title {
  flex: 1;
  font-family: var(--font-heading);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-navy);
}

.module__count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.module__lessons {
  border-top: 1px solid var(--color-navy-50);
  display: none;
}

.module--open .module__lessons {
  display: block;
}

/* Lesson Item */
.lesson-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px var(--space-md) 10px calc(var(--space-md) + 8px);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  border-left: 3px solid transparent;
}

.lesson-item:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
}

.lesson-item--active {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border-left-color: var(--color-primary);
  font-weight: 600;
}

.lesson-item--completed {
  color: var(--color-text-muted);
}

.lesson-item__check {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-navy-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 12px;
  transition: all var(--transition-fast);
}

.lesson-item--completed .lesson-item__check {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.lesson-item__title {
  flex: 1;
}

.lesson-item__duration {
  font-size: 11px;
  color: var(--color-text-faint);
}

/* Course Back Button */
.course-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  font-weight: 500;
}

.course-back:hover {
  color: var(--color-primary);
}

/* Completion Button */
.lesson-complete-btn {
  margin-top: var(--space-lg);
}

.lesson-complete-btn .btn {
  width: 100%;
}

.lesson-complete-btn .btn--completed {
  background: var(--color-success-light);
  color: var(--color-success);
  box-shadow: none;
}

.lesson-complete-btn .btn--completed:hover {
  transform: none;
}

@media (max-width: 900px) {
  .course-detail {
    grid-template-columns: 1fr;
  }

  .course-detail__sidebar {
    position: static;
    max-height: none;
  }
}

@media (max-width: 640px) {
  .courses-grid {
    grid-template-columns: 1fr;
  }
}