/* ============================================================
   Made2Stick Learning - Course Catalog & Video Player Styles
   Unified with Main Website Light Theme (#fafbfc)
   ============================================================ */

/* --- Catalog Page Styles --- */
.catalog-header-banner {
  padding: 60px 0 40px;
  background: radial-gradient(circle at top center, rgba(225, 29, 72, 0.08) 0%, rgba(15, 23, 42, 0.02) 60%, transparent 100%);
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}

.search-filter-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 36px 0 24px;
}

.course-search-box {
  position: relative;
  flex: 1;
  min-width: 280px;
  max-width: 440px;
}

.course-search-box input {
  width: 100%;
  padding: 13px 18px 13px 44px;
  font-size: 15px;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-full);
  background: #ffffff;
  color: var(--text-dark);
  font-family: inherit;
  outline: none;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-xs);
}

.course-search-box input:focus {
  border-color: var(--brand-red);
  box-shadow: 0 0 0 4px rgba(225, 29, 72, 0.12);
}

.search-icon-svg {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  pointer-events: none;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
  margin-bottom: 60px;
}

.catalog-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
}

.catalog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(225, 29, 72, 0.25);
}

.catalog-card-img-wrap {
  position: relative;
  height: 195px;
  background: #0f172a;
  overflow: hidden;
}

.catalog-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.catalog-card:hover .catalog-card-img-wrap img {
  transform: scale(1.04);
}

.catalog-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.catalog-card:hover .catalog-play-overlay {
  opacity: 1;
}

.play-circle-btn {
  width: 52px;
  height: 52px;
  background: var(--brand-red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  box-shadow: var(--shadow-glow);
  transform: scale(0.9);
  transition: transform 0.2s ease;
}

.catalog-card:hover .play-circle-btn {
  transform: scale(1);
}

.catalog-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.catalog-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.catalog-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--brand-gradient-soft);
  color: var(--brand-red);
}

.catalog-rating {
  font-size: 13px;
  font-weight: 700;
  color: #f59e0b;
}

.catalog-card-title {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.35;
  margin-bottom: 10px;
}

.catalog-card-desc {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.55;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.catalog-specs-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 14px;
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  font-size: 13px;
  color: var(--text-muted);
}

.catalog-spec-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.catalog-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

/* ============================================================
   Course Video Player & Classroom Layout (Light Theme Unified)
   ============================================================ */
.player-page-body {
  background-color: #fafbfc;
  color: var(--text-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.player-topbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-xs);
}

.player-topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.player-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  background: #f1f5f9;
  color: var(--text-dark);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border-subtle);
  transition: all 0.2s;
}

.player-back-btn:hover {
  background: #e2e8f0;
  color: #000;
}

.player-course-heading {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 360px;
}

.player-topbar-center {
  flex: 1;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.progress-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}

.player-progress-bar {
  width: 100%;
  height: 7px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}

.player-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #ef4444, #10b981);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.player-topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Classroom Main Layout */
.classroom-container {
  display: grid;
  grid-template-columns: 1fr 380px;
  flex: 1;
  min-height: calc(100vh - 61px);
  background-color: #fafbfc;
}

@media (max-width: 1024px) {
  .classroom-container {
    grid-template-columns: 1fr;
  }
}

/* Video & Content Area (Left Column) */
.video-content-pane {
  display: flex;
  flex-direction: column;
  padding: 28px;
  overflow-y: auto;
}

.video-frame-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  background: #000000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
}

.video-frame-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.lesson-active-title {
  font-size: 23px;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.3;
}

.lesson-action-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-complete-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  background: #ffffff;
  color: var(--text-body);
  border: 1.5px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-complete-toggle:hover {
  background: #f8fafc;
  color: var(--text-dark);
  border-color: #cbd5e1;
}

.btn-complete-toggle.completed {
  background: var(--accent-green-bg);
  border-color: var(--accent-green);
  color: #065f46;
  font-weight: 700;
}

.btn-nav-lesson {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  background: var(--brand-red);
  color: #ffffff;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.btn-nav-lesson:hover {
  background: var(--brand-red-dark);
  box-shadow: var(--shadow-glow);
}

.btn-nav-lesson:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: #94a3b8;
  box-shadow: none;
}

/* Tabs: Notes & Resources */
.lesson-tabs-nav {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.lesson-tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 4px 14px;
  cursor: pointer;
  position: relative;
  font-family: inherit;
  transition: color 0.2s;
}

.lesson-tab-btn:hover {
  color: var(--text-dark);
}

.lesson-tab-btn.active {
  color: var(--brand-red);
  font-weight: 700;
}

.lesson-tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2.5px;
  background: var(--brand-red);
  border-radius: 2px;
}

.tab-pane {
  display: none;
  padding: 24px 0;
  line-height: 1.7;
  color: var(--text-body);
}

.tab-pane.active {
  display: block;
}

.tab-pane h3 {
  color: var(--text-dark);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  margin-top: 18px;
}

.tab-pane h3:first-child {
  margin-top: 0;
}

.tab-pane ul {
  padding-left: 22px;
  margin-bottom: 16px;
}

.tab-pane li {
  margin-bottom: 8px;
}

.tab-pane code {
  background: #fee2e2;
  color: #991b1b;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 13px;
}

/* Resource List */
.resource-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.resource-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xs);
  transition: all 0.2s;
}

.resource-item:hover {
  border-color: rgba(225, 29, 72, 0.4);
  box-shadow: var(--shadow-sm);
}

.resource-name {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
}

/* Sidebar Curriculum (Right Column) */
.curriculum-sidebar {
  background: #ffffff;
  border-left: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: calc(100vh - 61px);
  box-shadow: -2px 0 10px rgba(0,0,0,0.02);
}

.sidebar-header {
  padding: 18px 20px;
  background: #fafbfc;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
}

.curriculum-scroll-area {
  flex: 1;
  overflow-y: auto;
  background: #ffffff;
}

/* Module Accordion */
.module-group {
  border-bottom: 1px solid var(--border-subtle);
}

.module-header-btn {
  width: 100%;
  padding: 15px 20px;
  background: #f8fafc;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  cursor: pointer;
  color: var(--text-dark);
  font-family: inherit;
  transition: background 0.2s;
  border-bottom: 1px solid transparent;
}

.module-header-btn:hover {
  background: #f1f5f9;
}

.module-group.open .module-header-btn {
  border-bottom: 1px solid var(--border-subtle);
  background: #f1f5f9;
}

.module-title-text {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-dark);
  padding-right: 12px;
}

.module-meta-info {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.module-chevron {
  font-size: 11px;
  color: var(--text-muted);
  transition: transform 0.25s ease;
}

.module-group.open .module-chevron {
  transform: rotate(180deg);
}

.module-lessons-list {
  display: none;
  list-style: none;
  background: #ffffff;
}

.module-group.open .module-lessons-list {
  display: block;
}

/* Individual Lesson Item */
.lesson-item-btn {
  width: 100%;
  padding: 13px 20px 13px 24px;
  border: none;
  background: #ffffff;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  text-align: left;
  cursor: pointer;
  color: var(--text-body);
  font-family: inherit;
  border-left: 3px solid transparent;
  border-bottom: 1px solid #f1f5f9;
  transition: all 0.2s;
}

.lesson-item-btn:hover {
  background: #f8fafc;
  color: var(--text-dark);
}

.lesson-item-btn.active {
  background: var(--brand-gradient-soft);
  color: var(--brand-red-dark);
  border-left-color: var(--brand-red);
}

.lesson-status-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1.5px solid #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  margin-top: 2px;
  flex-shrink: 0;
  color: transparent;
  background: #ffffff;
  transition: all 0.2s;
}

.lesson-item-btn.completed .lesson-status-icon {
  background: #10b981;
  border-color: #10b981;
  color: #ffffff;
}

.lesson-item-btn.active:not(.completed) .lesson-status-icon {
  border-color: var(--brand-red);
  color: var(--brand-red);
}

.lesson-btn-content {
  flex: 1;
}

.lesson-btn-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.35;
  color: inherit;
}

.lesson-item-btn.active .lesson-btn-title {
  font-weight: 700;
  color: var(--brand-red-dark);
}

.lesson-btn-duration {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ============================================================
   Student Auth Modal & Classroom Gating Styles
   ============================================================ */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.auth-modal-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-width: 440px;
  width: 100%;
  padding: 36px 32px;
  position: relative;
  border: 1px solid var(--border-subtle);
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  0% { transform: scale(0.94); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.auth-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  line-height: 1;
}

.auth-modal-close:hover {
  color: var(--text-dark);
}

.auth-modal-header {
  text-align: center;
  margin-bottom: 22px;
}

.btn-google-auth {
  width: 100%;
  padding: 12px 18px;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--text-dark);
  font-size: 14.5px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: var(--shadow-xs);
  font-family: inherit;
}

.btn-google-auth:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  box-shadow: var(--shadow-sm);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 20px 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-subtle);
}

.auth-divider span {
  padding: 0 12px;
  font-size: 12px;
  color: var(--text-light);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.auth-input {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  color: var(--text-dark);
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.auth-input:focus {
  border-color: var(--brand-red);
  box-shadow: 0 0 0 3px rgba(225, 29, 72, 0.12);
}

.auth-error-msg {
  background: #fee2e2;
  border: 1px solid #f87171;
  color: #991b1b;
  font-size: 13px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
  line-height: 1.4;
}

.auth-modal-footer {
  text-align: center;
  font-size: 13.5px;
  color: var(--text-muted);
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
}

.auth-modal-footer a {
  color: var(--brand-red);
  font-weight: 700;
  margin-left: 4px;
}

/* Video Player Lock / Gate Overlay */
.video-auth-gate-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(8px);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 30px;
  text-align: center;
}

.gate-icon-badge {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(225, 29, 72, 0.15);
  border: 1.5px solid var(--brand-red);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--brand-red-light);
  margin-bottom: 16px;
}

/* --- Certificate Modal Styles --- */
.cert-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 20px;
  overflow-y: auto;
}

.cert-modal-box {
  background: #ffffff;
  border-radius: 16px;
  max-width: 840px;
  width: 100%;
  padding: 32px;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  animation: modalFadeIn 0.25s ease-out;
}

.cert-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: #f1f5f9;
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748b;
  transition: all 0.2s;
}

.cert-modal-close:hover {
  background: #e2e8f0;
  color: #0f172a;
}

.btn-cert-claim-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 10px;
  margin-top: 16px;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
  animation: pulseCert 2s infinite ease-in-out;
}

@keyframes pulseCert {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.015); box-shadow: 0 6px 18px rgba(16, 185, 129, 0.4); }
}