/* Learning Course Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

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

.learning-course-page {
  animation: fadeInUp 0.5s ease-out;
}

/* Learning Page Container */
.learning-page-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 24px;
}

/* Hero Section */
.learning-hero-section {
  margin-bottom: 48px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.learning-hero-content {
  flex: 1;
  min-width: 300px;
}

.learning-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #1d4ed8;
  font-weight: 700;
  font-size: .84rem;
  margin-bottom: 16px;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.learning-hero-badge svg {
  flex-shrink: 0;
}

.learning-hero-title {
  margin: 0 0 12px;
  font-size: 2.5rem;
  line-height: 1.2;
  color: #0f172a;
  font-weight: 800;
  background: linear-gradient(135deg, #0f172a, #334155);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.learning-hero-description {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.6;
  color: #64748b;
}

.learning-status-badge {
  padding: 16px 24px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255,255,255,0.98), rgba(248,250,252,0.95));
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 2px 8px rgba(15,23,42,0.04);
}

.learning-page-status {
  margin: 0;
  font-size: .94rem;
  line-height: 1.5;
  transition: color 0.3s ease;
  color: #64748b;
}

/* Course Sections */
.learning-courses-section {
  margin-bottom: 56px;
}

.learning-courses-section:last-child {
  margin-bottom: 0;
}

.learning-section-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid rgba(148, 163, 184, 0.1);
}

.learning-section-header-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.learning-section-title {
  margin: 0;
  font-size: 1.75rem;
  line-height: 1.3;
  color: #0f172a;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 12px;
}

.learning-section-title svg {
  flex-shrink: 0;
  color: #2563eb;
}

.learning-section-subtitle {
  margin: 0;
  font-size: .96rem;
  color: #64748b;
  line-height: 1.5;
}

/* Course Grid - 4 Columns */
.learning-course-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.learning-status-card {
  margin-bottom: 18px;
}

/* Course Cards */
.learning-course-card {
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.94));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(15,23,42,0.04);
  position: relative;
}

/* .learning-course-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59,130,246,0.2), rgba(15,118,110,0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s ease;
} */

.learning-course-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(37,99,235,0.16), 0 8px 16px rgba(15,23,42,0.08);
  border-color: rgba(37, 99, 235, 0.3);
}

.learning-course-card:hover::before {
  opacity: 1;
}

.learning-course-thumb {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, rgba(37,99,235,0.15), rgba(15,118,110,0.15));
  overflow: hidden;
  position: relative;
}

.learning-course-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(15,23,42,0.05) 100%);
}

.learning-course-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.learning-course-card:hover .learning-course-thumb img {
  transform: scale(1.08);
}

.learning-course-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.learning-course-title {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.35;
  color: #0f172a;
  font-weight: 700;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.7em;
}

.learning-course-summary {
  margin: 0;
  color: #64748b;
  line-height: 1.6;
  font-size: .88rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.learning-course-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.learning-course-pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #1d4ed8;
  font-weight: 700;
  font-size: .78rem;
  border: 1px solid rgba(37, 99, 235, 0.12);
  white-space: nowrap;
}

.learning-course-pill.locked {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  color: #475569;
  border-color: rgba(148, 163, 184, 0.15);
}

.learning-course-actions {
  margin-top: auto;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 12px;
}

.learning-course-actions .btn-like {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  font-size: .88rem;
  flex: 1;
  min-width: 0;
}

.learning-course-actions .btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
  box-shadow: 0 4px 12px rgba(37,99,235,0.25);
}

.learning-course-actions .btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  box-shadow: 0 6px 16px rgba(37,99,235,0.35);
  transform: translateY(-1px);
}

.learning-course-actions .btn-secondary {
  background: linear-gradient(135deg, #eef2ff, #e0e7ff);
  color: #1e3a8a;
}

.learning-course-actions .btn-secondary:hover {
  background: linear-gradient(135deg, #e0e7ff, #dbeafe);
  transform: translateY(-1px);
}

/* Loading State */
.learning-loading-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 40px;
  gap: 20px;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(37, 99, 235, 0.1);
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.learning-loading-state p {
  margin: 0;
  color: #64748b;
  font-size: .96rem;
}

/* Empty State */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 40px;
  text-align: center;
  color: #64748b;
  font-size: .96rem;
  background: linear-gradient(135deg, rgba(248,250,252,0.5), rgba(241,245,249,0.5));
  border-radius: 20px;
  border: 2px dashed rgba(148, 163, 184, 0.25);
}

.learning-course-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  background:
    radial-gradient(circle at top right, rgba(37,99,235,0.12), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.94));
}

.learning-course-header-copy {
  min-width: 0;
  padding: 20px;
}

.learning-course-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.learning-course-stat-card {
  background:
    radial-gradient(circle at top right, rgba(15,118,110,0.1), transparent 36%),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.92));
  border: 1px solid rgba(148, 163, 184, 0.16);
  padding: 20px;
}

.learning-course-stat-card span {
  display: block;
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #64748b;
}

.learning-course-stat-card strong {
  display: block;
  margin-top: 12px;
  font-size: 1.5rem;
  line-height: 1.1;
  color: #0f172a;
}

.learning-course-stat-card small {
  display: block;
  margin-top: 10px;
  color: #64748b;
  line-height: 1.45;
  font-size: .82rem;
}

.learning-course-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 20px;
  align-items: start;
}

.learning-main-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.learning-curriculum-panel,
.learning-player-panel {
  min-height: 520px;
}

.learning-player-panel {
  background:
    radial-gradient(circle at top left, rgba(59,130,246,0.06), transparent 32%),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.96));
}

.learning-player-shell {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.learning-player-wrapper {
  width: 100%;
}

.learning-player-stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, .72fr);
  gap: 18px;
  align-items: start;
}

.learning-player-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.learning-curriculum {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: calc(100vh - 280px);
  overflow-y: auto;
  padding-right: 4px;
}

.learning-curriculum::-webkit-scrollbar {
  width: 6px;
}

.learning-curriculum::-webkit-scrollbar-track {
  background: rgba(148, 163, 184, 0.08);
  border-radius: 10px;
}

.learning-curriculum::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.3);
  border-radius: 10px;
}

.learning-curriculum::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.5);
}

.learning-curriculum-panel {
  position: sticky;
  top: 24px;
  align-self: start;
}

.learning-curriculum-head {
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.learning-curriculum-head-text h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 1.32rem;
}

.learning-curriculum-head-text h2 svg {
  color: #2563eb;
}

.learning-curriculum-meta {
  margin: 0;
  color: #64748b;
  font-size: .88rem;
  line-height: 1.5;
}

.learning-curriculum-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #1d4ed8;
  font-weight: 800;
  font-size: .78rem;
  padding: 9px 14px;
  white-space: nowrap;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.learning-section-block {
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 18px;
  padding: 16px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.86));
  box-shadow: 0 2px 8px rgba(15,23,42,0.04);
}

.learning-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.learning-section-title {
  margin: 0;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #0f172a;
  font-weight: 700;
}

.learning-section-title svg {
  color: #64748b;
  flex-shrink: 0;
}

.learning-section-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  border-radius: 999px;
  background: #f1f5f9;
  color: #475569;
  font-size: .75rem;
  font-weight: 700;
  white-space: nowrap;
}

.learning-lesson-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.learning-lesson-item {
  width: 100%;
  text-align: left;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.92));
  padding: 14px;
  cursor: pointer;
  transition: all .2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.learning-lesson-item:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, 0.5);
  box-shadow: 0 12px 24px rgba(37,99,235,0.12), 0 4px 8px rgba(15,23,42,0.06);
}

.learning-lesson-item.is-active {
  border-color: #2563eb;
  background: linear-gradient(135deg, rgba(239,246,255,0.95), rgba(219,234,254,0.85));
  box-shadow: 0 0 0 1px rgba(37,99,235,0.2) inset, 0 16px 32px rgba(37,99,235,0.14);
  transform: translateY(-1px);
}

.learning-lesson-item.is-completed .learning-lesson-item-icon svg {
  color: #059669;
}

.learning-lesson-item-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.learning-lesson-item-icon svg {
  color: #64748b;
  transition: color .2s ease;
}

.learning-lesson-item.is-active .learning-lesson-item-icon svg {
  color: #2563eb;
}

.learning-lesson-item-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.learning-lesson-item strong {
  display: block;
  font-size: .94rem;
  color: #0f172a;
  line-height: 1.4;
  font-weight: 600;
}

.learning-lesson-item-summary {
  display: block;
  color: #64748b;
  font-size: .82rem;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.learning-lesson-item-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.learning-lesson-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .76rem;
  color: #64748b;
  font-weight: 600;
}

.learning-lesson-meta-item svg {
  flex-shrink: 0;
}

.learning-lesson-progress-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 9px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid rgba(148, 163, 184, 0.2);
  color: #475569;
  font-size: .74rem;
  font-weight: 700;
}

.learning-lesson-progress-badge.is-completed {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  border-color: rgba(5, 150, 105, 0.2);
  color: #065f46;
}

.learning-player-frame {
  border-radius: 20px;
  overflow: hidden;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 24px 48px rgba(15,23,42,0.2), 0 8px 16px rgba(15,23,42,0.12);
  position: relative;
}

.learning-player-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59,130,246,0.3), rgba(15,118,110,0.3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.learning-player-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  position: relative;
  z-index: 1;
}

.learning-player-frame .empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: #94a3b8;
  text-align: center;
  padding: 40px;
}

.learning-player-frame .empty-state svg {
  opacity: 0.5;
}

.learning-player-frame .empty-state p {
  margin: 0;
  font-size: .96rem;
  line-height: 1.6;
  max-width: 320px;
}

.learning-lesson-info-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.learning-lesson-header {
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 20px;
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(59,130,246,0.08), transparent 40%),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,250,252,0.94));
  box-shadow: 0 4px 12px rgba(15,23,42,0.04);
}

.learning-lesson-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.learning-lesson-header h2 {
  margin: 0 0 12px;
  font-size: 1.4rem;
  line-height: 1.3;
  color: #0f172a;
  font-weight: 700;
}

.learning-lesson-summary {
  margin: 0;
  color: #64748b;
  line-height: 1.65;
  font-size: .94rem;
}

.learning-lesson-progress {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  color: #1d4ed8;
  padding: 9px 14px;
  font-weight: 700;
  font-size: .84rem;
  white-space: nowrap;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.learning-lesson-progress svg {
  flex-shrink: 0;
}

.learning-lesson-meta-pills {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.learning-lesson-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  border-radius: 999px;
  background: #f8fafc;
  border: 1px solid rgba(148, 163, 184, 0.18);
  color: #475569;
  font-size: .82rem;
  font-weight: 600;
}

.learning-lesson-pill svg {
  flex-shrink: 0;
}

.learning-lesson-status-pill.is-completed {
  background: linear-gradient(135deg, #d1fae5, #a7f3d0);
  border-color: rgba(5, 150, 105, 0.2);
  color: #065f46;
}

.learning-lesson-content {
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 20px;
  padding: 24px;
  background: rgba(255,255,255,0.96);
  line-height: 1.7;
  color: #334155;
  min-height: 200px;
  box-shadow: 0 2px 8px rgba(15,23,42,0.04);
}

.learning-lesson-content-title {
  margin: 0 0 16px;
  font-size: 1.05rem;
  color: #0f172a;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.learning-lesson-content-body {
  line-height: 1.7;
  font-size: .92rem;
}

.learning-lesson-content-body p {
  margin: 0 0 14px;
}

.learning-lesson-content-body p:last-child {
  margin-bottom: 0;
}

.learning-lesson-content-body h3,
.learning-lesson-content-body h4 {
  margin: 24px 0 12px;
  color: #0f172a;
}

.learning-lesson-content-body ul,
.learning-lesson-content-body ol {
  margin: 14px 0;
  padding-left: 24px;
}

.learning-lesson-content-body li {
  margin: 8px 0;
}

.learning-lesson-content iframe,
.learning-lesson-content img {
  max-width: 100%;
  border-radius: 12px;
  margin: 16px 0;
}

.learning-course-header-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  padding: 20px;
}

.learning-header-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: .92rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.learning-header-btn svg {
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.learning-header-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.learning-header-btn-secondary {
  background: linear-gradient(135deg, #f8fafc, #f1f5f9);
  color: #475569;
  border: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 1px 3px rgba(15,23,42,0.08);
}

.learning-header-btn-secondary:hover:not(:disabled) {
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-color: rgba(148, 163, 184, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(15,23,42,0.12);
}

.learning-header-btn-secondary:hover:not(:disabled) svg {
  transform: translateX(-2px);
}

.learning-header-btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  border: 1px solid rgba(37, 99, 235, 0.2);
  box-shadow: 0 4px 12px rgba(37,99,235,0.25), 0 2px 4px rgba(15,23,42,0.1);
}

.learning-header-btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.learning-header-btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #1d4ed8, #1e40af);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37,99,235,0.35), 0 4px 8px rgba(15,23,42,0.15);
}

.learning-header-btn-primary:hover:not(:disabled)::before {
  opacity: 1;
}

.learning-header-btn-primary:hover:not(:disabled) svg {
  transform: scale(1.1);
}

.learning-header-btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(37,99,235,0.25);
}

.learning-locked-state {
  padding: 60px 40px;
  text-align: center;
}

.learning-locked-state .empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  max-width: 460px;
  margin: 0 auto;
}

.learning-locked-state .empty-state svg {
  color: #94a3b8;
  opacity: 0.7;
}

.learning-locked-state .empty-state h3 {
  margin: 0;
  font-size: 1.5rem;
  color: #0f172a;
}

.learning-locked-state .empty-state p {
  margin: 0;
  color: #64748b;
  line-height: 1.65;
  font-size: 1rem;
}

/* Responsive Design */
@media (max-width: 1400px) {
  .learning-page-container {
    padding: 28px 20px;
  }
  
  .learning-course-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media (max-width: 1200px) {
  .learning-hero-title {
    font-size: 2.2rem;
  }
  
  .learning-course-layout {
    grid-template-columns: 1fr;
  }
  
  .learning-curriculum-panel {
    position: static;
    max-height: none;
  }
  
  .learning-curriculum {
    max-height: 600px;
  }
}

@media (max-width: 980px) {
  .learning-course-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  
  .learning-hero-section {
    margin-bottom: 40px;
  }
  
  .learning-hero-title {
    font-size: 2rem;
  }
  
  .learning-courses-section {
    margin-bottom: 48px;
  }
  
  .learning-section-title {
    font-size: 1.5rem;
  }
  
  .learning-course-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .learning-player-wrapper {
    margin-bottom: 20px;
  }
  
  .learning-lesson-info-panel {
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .learning-page-container {
    padding: 24px 16px;
  }
  
  .learning-hero-section {
    flex-direction: column;
    margin-bottom: 32px;
  }
  
  .learning-status-badge {
    width: 100%;
  }
  
  .learning-hero-title {
    font-size: 1.75rem;
  }
  
  .learning-hero-description {
    font-size: 1rem;
  }
  
  .learning-section-header {
    margin-bottom: 20px;
    padding-bottom: 16px;
  }
  
  .learning-section-title {
    font-size: 1.35rem;
  }
  
  .learning-courses-section {
    margin-bottom: 40px;
  }
  
  .learning-course-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .learning-course-header-copy {
    padding: 20px 20px 0;
  }
  
  .learning-course-header-actions {
    padding: 12px 20px 20px;
  }
  
  .learning-header-btn {
    flex: 1;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .learning-course-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .learning-hero-title {
    font-size: 1.6rem;
  }
  
  .learning-section-title {
    font-size: 1.25rem;
    flex-wrap: wrap;
  }
  
  .learning-course-card {
    border-radius: 16px;
  }
  
  .learning-course-body {
    padding: 18px;
  }
  
  .learning-course-actions {
    flex-direction: column;
  }
  
  .learning-course-actions .btn-like {
    width: 100%;
  }
  
  .learning-course-stats {
    grid-template-columns: 1fr;
  }
  
  .learning-course-header {
    flex-direction: column;
  }
  
  .learning-course-header-copy {
    padding: 16px 16px 0;
  }
  
  .learning-course-header-actions {
    flex-direction: column;
    padding: 12px 16px 16px;
    gap: 10px;
  }
  
  .learning-header-btn {
    width: 100%;
    justify-content: center;
    padding: 14px 20px;
  }
  
  .learning-course-header-actions a,
  .learning-course-header-actions button {
    flex: 1;
  }
  
  .learning-lesson-header {
    padding: 20px;
  }
  
  .learning-lesson-content {
    padding: 20px;
  }
  
  .learning-section-block {
    padding: 14px;
  }
  
  .learning-lesson-item {
    padding: 12px;
  }
  
  .learning-locked-state {
    padding: 40px 20px;
  }
  
  .learning-loading-state {
    padding: 60px 20px;
  }
}