/* ============================================
   LMS SaaS — UI Components
   ============================================ */

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  font-family: var(--font-family);
  font-size: var(--font-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--color-primary-hover), var(--color-primary-dark)); box-shadow: 0 4px 12px rgba(99,102,241,0.4); }
.btn-secondary { background: var(--color-bg-tertiary); color: var(--color-text); }
.btn-secondary:hover { background: var(--color-border-light); }
.btn-ghost { background: transparent; color: var(--color-text-secondary); }
.btn-ghost:hover { background: var(--color-surface-hover); color: var(--color-text); }
.btn-danger { background: var(--color-danger); color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--color-success); color: white; }
.btn-sm { padding: 6px 14px; font-size: var(--font-xs); }
.btn-lg { padding: 14px 28px; font-size: var(--font-md); }
.btn-icon { padding: 10px; border-radius: var(--radius-md); }
.btn:disabled, .btn[disabled], .btn.disabled {
  opacity: 0.6;
  background: var(--color-bg-tertiary) !important;
  color: var(--color-text-muted) !important;
  box-shadow: none !important;
  pointer-events: none;
  cursor: not-allowed;
}

/* ---- CARDS ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}
.card:hover { border-color: var(--color-border-light); box-shadow: var(--shadow-md); }
.card-glass {
  background: rgba(30,41,59,0.7);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.08);
}
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-md); }
.card-title { font-size: var(--font-lg); font-weight: 700; color: var(--color-text); }
.card-subtitle { font-size: var(--font-sm); color: var(--color-text-muted); margin-top: 2px; }
.card-body { flex: 1; }
.card-footer { margin-top: var(--space-md); padding-top: var(--space-md); border-top: 1px solid var(--color-border); }

/* ---- STAT CARDS ---- */
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  transition: all var(--transition-base);
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stat-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.stat-icon.primary { background: rgba(99,102,241,0.15); color: var(--color-primary); }
.stat-icon.success { background: rgba(16,185,129,0.15); color: var(--color-success); }
.stat-icon.warning { background: rgba(245,158,11,0.15); color: var(--color-warning); }
.stat-icon.danger { background: rgba(239,68,68,0.15); color: var(--color-danger); }
.stat-icon.info { background: rgba(59,130,246,0.15); color: var(--color-info); }
.stat-content { flex: 1; }
.stat-value { font-size: var(--font-3xl); font-weight: 800; line-height: 1.1; }
.stat-label { font-size: var(--font-sm); color: var(--color-text-muted); margin-top: 4px; }
.stat-change { font-size: var(--font-xs); font-weight: 600; margin-top: 4px; }
.stat-change.up { color: var(--color-success); }
.stat-change.down { color: var(--color-danger); }

/* ---- FORMS ---- */
.form-group { margin-bottom: var(--space-lg); position: relative; }
.form-label { display: block; font-size: var(--font-sm); font-weight: 600; color: var(--color-text-secondary); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: var(--font-md);
  transition: all var(--transition-fast);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  outline: none;
}
.form-input::placeholder { color: var(--color-text-muted); }
.form-textarea { min-height: 120px; resize: vertical; }
.form-error { font-size: var(--font-xs); color: var(--color-danger); margin-top: 4px; }

/* ---- TABLE ---- */
.table-container { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--color-border); }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { background: var(--color-bg-tertiary); padding: 12px 16px; font-size: var(--font-sm); font-weight: 600; color: var(--color-text-secondary); text-align: left; white-space: nowrap; }
.data-table td { padding: 12px 16px; font-size: var(--font-sm); border-top: 1px solid var(--color-border); }
.data-table tr:hover td { background: var(--color-surface-hover); }

/* ---- BADGES/PILLS ---- */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: var(--font-xs); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-primary { background: rgba(99,102,241,0.15); color: var(--color-primary); }
.badge-success { background: rgba(16,185,129,0.15); color: var(--color-success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--color-warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--color-danger); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--color-info); }

/* ---- PROGRESS BAR ---- */
.progress { height: 8px; background: var(--color-bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar { height: 100%; border-radius: var(--radius-full); transition: width var(--transition-slow); background: linear-gradient(90deg, var(--color-primary), #818cf8); }
.progress-bar.success { background: linear-gradient(90deg, var(--color-success), #34d399); }
.progress-bar.warning { background: linear-gradient(90deg, var(--color-warning), #fbbf24); }
.progress-bar.danger { background: linear-gradient(90deg, var(--color-danger), #f87171); }

/* ---- MODAL ---- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100000; opacity: 0; pointer-events: none;
  transition: opacity var(--transition-base);
  padding: var(--space-xl);
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  width: 80%; max-width: 1200px;
  max-height: 85vh; overflow-y: auto;
  padding: 0 var(--space-xl) var(--space-xl) var(--space-xl);
  transform: scale(0.95); transition: transform var(--transition-base);
  position: relative;
  box-shadow: var(--shadow-xl);
  scrollbar-width: thin;
  scrollbar-color: var(--color-bg-tertiary) transparent;
}
.modal::-webkit-scrollbar {
  width: 6px;
}
.modal::-webkit-scrollbar-track {
  background: transparent;
}
.modal::-webkit-scrollbar-thumb {
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
}
.modal::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}
@media (max-width: 1024px) {
  .modal-overlay { padding: var(--space-md); }
  .modal {
    width: 95%;
    padding: 0 var(--space-lg) var(--space-lg) var(--space-lg);
    max-height: 90vh;
  }
}
.modal-overlay.active .modal { transform: scale(1); }
.modal-header {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  z-index: 10;
  margin-left: calc(-1 * var(--space-xl));
  margin-right: calc(-1 * var(--space-xl));
  padding-left: var(--space-xl);
  padding-right: var(--space-xl);
  padding-top: var(--space-xl);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (max-width: 1024px) {
  .modal-header {
    top: 0;
    margin-left: calc(-1 * var(--space-lg));
    margin-right: calc(-1 * var(--space-lg));
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
    padding-top: var(--space-lg);
  }
}
.modal-title { font-size: var(--font-xl); font-weight: 700; }
.modal-close { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 1.5rem; padding: 4px; }
.modal-close:hover { color: var(--color-text); }
/* ---- TOAST ---- */
.toast-container { position: fixed; top: var(--space-lg); right: var(--space-lg); z-index: 20000; display: flex; flex-direction: column; gap: var(--space-sm); }

.toast {
  padding: 14px 20px; border-radius: var(--radius-md);
  font-size: var(--font-sm); font-weight: 500;
  display: flex; align-items: center; gap: var(--space-sm);
  animation: slideInRight 0.3s ease, fadeOut 0.3s ease 3.7s forwards;
  min-width: 300px; box-shadow: var(--shadow-lg);
}
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateX(50px); } }
.toast-success { background: var(--color-success); color: white; }
.toast-error { background: var(--color-danger); color: white; }
.toast-info { background: var(--color-info); color: white; }
.toast-warning { background: var(--color-warning); color: rgb(222, 236, 21); }

/* ---- AVATAR ---- */
.avatar {
  width: 40px; height: 40px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), #818cf8);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: white; font-size: var(--font-sm);
  flex-shrink: 0; overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { width: 32px; height: 32px; font-size: var(--font-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--font-lg); }

/* Premium Glowing Golden Avatar Frame from Rewards Shop */
.avatar.premium-frame {
  box-shadow: 0 0 0 3px #f59e0b, 0 0 12px rgba(245, 158, 11, 0.75);
  border: 2px solid var(--color-surface);
  animation: premiumPulse 2s infinite alternate ease-in-out;
  position: relative;
}
@keyframes premiumPulse {
  0% {
    box-shadow: 0 0 0 3px #f59e0b, 0 0 12px rgba(245, 158, 11, 0.75);
  }
  100% {
    box-shadow: 0 0 0 5px #fbbf24, 0 0 20px rgba(251, 191, 36, 0.95);
  }
}


/* ---- EMPTY STATE ---- */
.empty-state { text-align: center; padding: var(--space-2xl); }
.empty-state-icon { font-size: 3rem; margin-bottom: var(--space-md); }
.empty-state-title { font-size: var(--font-xl); font-weight: 700; margin-bottom: var(--space-sm); }
.empty-state-text { color: var(--color-text-muted); margin-bottom: var(--space-lg); }

/* ---- LOADING ---- */
.skeleton { background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border) 50%, var(--color-bg-tertiary) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-md); }
.spinner { width: 24px; height: 24px; border: 3px solid var(--color-border); border-top-color: var(--color-primary); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   LEARNDASH EXPANSION: Focus Mode, Quiz Player, Certificates, Outline Builder
   ========================================================================== */

/* ---- GLASS CARDS ---- */
.glass-card {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ---- STUDENT FOCUS MODE PLAYER ---- */
.focus-mode-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--color-bg);
  color: var(--color-text);
  overflow: hidden;
  font-family: var(--font-family);
}

/* Left Sidebar */
.focus-sidebar {
  width: 320px;
  background: var(--color-sidebar-bg);
  border-right: 1px solid var(--color-sidebar-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform var(--transition-base);
  z-index: 10;
  color: var(--color-sidebar-text);
}

.focus-sidebar-header {
  padding: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-sidebar-border);
  background: rgba(0, 0, 0, 0.15);
}

.focus-course-title {
  font-size: var(--font-md);
  font-weight: 700;
  margin: var(--space-sm) 0 var(--space-md) 0;
  color: var(--color-sidebar-active);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.focus-progress-wrapper {
  background: rgba(255, 255, 255, 0.04);
  padding: 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-sidebar-border);
}

.focus-progress-header {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--color-sidebar-text-muted);
  margin-bottom: 6px;
}

.focus-progress-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.focus-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.focus-outline-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-md) 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}
.focus-outline-nav::-webkit-scrollbar {
  width: 5px;
}
.focus-outline-nav::-webkit-scrollbar-track {
  background: transparent;
}
.focus-outline-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
}
.focus-outline-nav::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

.focus-outline-group-title {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-xs);
  font-weight: 700;
  color: var(--color-sidebar-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.focus-lesson-block {
  margin-bottom: var(--space-xs);
}

.focus-outline-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px var(--space-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-sidebar-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.focus-outline-item:hover {
  background: var(--color-sidebar-hover);
  color: var(--color-sidebar-active);
}

.focus-outline-item.active {
  background: var(--color-sidebar-hover);
  color: var(--color-sidebar-active);
  border-left-color: var(--color-accent);
  font-weight: 600;
}

.focus-outline-item.nested {
  padding-left: calc(var(--space-md) * 2);
}

.focus-outline-item.nested-deep {
  padding-left: calc(var(--space-md) * 3);
}

.focus-item-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-sidebar-text-muted);
  flex-shrink: 0;
}

.focus-outline-item.active .focus-item-icon {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 0 8px rgba(43, 58, 142, 0.4);
}

/* Premium Completed Item Styling in Focus Mode */
.focus-outline-item.completed {
  border-left-color: rgba(16, 185, 129, 0.35); /* Soft premium green indicator on left */
  color: rgba(225, 232, 237, 0.85); /* Elegantly softened text for completed items */
}

/* Satisfying emerald hover sheen specifically for completed elements */
.focus-outline-item.completed:hover {
  background: rgba(16, 185, 129, 0.08) !important;
  color: var(--color-sidebar-active) !important;
}

/* Complete icon state styling - gorgeous success gradient with intense premium glow */
.focus-outline-item.completed .focus-item-icon {
  background: linear-gradient(135deg, #10b981, #059669) !important;
  color: #ffffff !important;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.6) !important;
  font-weight: 700;
  font-size: 11px;
  animation: completeBounce 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Active Completed state (e.g. student is currently viewing a completed lesson/quiz/topic) */
.focus-outline-item.completed.active {
  border-left-color: #10b981 !important; /* Vivid success green left indicator when viewing completed item */
  background: rgba(16, 185, 129, 0.12) !important;
  color: var(--color-sidebar-active) !important;
  font-weight: 600;
}

/* Butter-smooth done scaling/glowing bounce animation */
@keyframes completeBounce {
  0% {
    transform: scale(0.4);
    opacity: 0;
  }
  70% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1);
  }
}

.focus-lesson-children {
  transition: max-height var(--transition-base);
}

/* Main Workspace */
.focus-workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #f1f5f9;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .focus-workspace,
body.dark-mode .focus-workspace {
  background: #0f172a;
}

.focus-topbar {
  position: relative;
  z-index: 50;
  height: var(--topbar-height);
  padding: 0 var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: var(--color-surface);
  backdrop-filter: blur(8px);
  flex-shrink: 0;
}

.focus-sidebar-toggle {
  display: none;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  cursor: pointer;
}

.focus-item-title {
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--color-text);
}

/* Accessibility Font Size Controls widget in Topbar */
.focus-font-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 4px 10px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.03);
}

.focus-font-dropdown {
  display: flex;
  align-items: center;
  gap: 4px;
}

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

.focus-font-indicator {
  font-size: var(--font-xs);
  font-weight: 700;
  color: var(--color-primary);
  min-width: 42px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.focus-font-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.focus-font-btn:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: rgba(43, 58, 142, 0.2);
}

.focus-font-btn:active {
  transform: scale(0.95);
}

.focus-font-reset {
  font-size: var(--font-sm);
  color: var(--color-text-muted);
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 3px 6px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.focus-font-reset:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text);
}

.focus-viewport {
  flex: 1;
  overflow-y: auto;
  padding: 40px 16px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  background: #f1f5f9;
}

[data-theme="dark"] .focus-viewport,
body.dark-mode .focus-viewport {
  background: #0f172a;
}

.focus-welcome {
  max-width: 500px;
  text-align: center;
  margin-top: 10vh;
  animation: fadeIn 0.5s ease;
}

.focus-content-card {
  width: 85%;
  max-width: 1450px;
  min-height: calc(100vh - 128px);
  padding: 36px 44px;
  border-radius: 16px;
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

/* Expand custom page background to match Composer canvas cleanly */
.focus-content-card .composer-page-background {
  margin: 0;
  border-radius: 0;
  padding: 0 !important;
  background: transparent !important;
}

/* Custom Responsive Video Player Container */
.focus-video-frame {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  margin-bottom: 32px; /* Gap of 32px so video is not glued to content */
  border: 1px solid rgba(0, 0, 0, 0.1);
  background-color: #0f172a;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

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

.focus-content-body {
  font-size: var(--focus-font-size, var(--font-md));
  line-height: 1.8;
  color: var(--color-text);
  transition: font-size var(--transition-fast);
}

.focus-content-body p {
  margin-bottom: var(--space-md);
}

.focus-attachment-box {
  margin-top: var(--space-xl);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Footer Nav */
.focus-footer {
  height: 72px;
  padding: 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  position: relative;
}

.focus-footer-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-state, .error-state {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--color-text-secondary);
  font-size: var(--font-md);
  font-style: italic;
  width: 100%;
}

/* ---- INTERACTIVE QUIZ PLAYER ---- */
.quiz-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.quiz-info-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  padding: 12px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quiz-info-val {
  font-size: var(--font-xl);
  font-weight: 800;
  color: var(--color-primary);
}

.quiz-info-lbl {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 2px;
  text-transform: uppercase;
}

.quiz-player-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: var(--space-md);
}

.quiz-header-top {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-sm);
}

.quiz-q-progress {
  font-weight: 600;
}

.quiz-q-points {
  color: var(--color-success);
  font-weight: 700;
}

.quiz-question-text {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.quiz-options-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.quiz-option-label {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.quiz-option-label:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-border-light);
}

.quiz-option-label.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

.quiz-option-label input[type="radio"], 
.quiz-option-label input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.quiz-player-footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.quiz-result-banner {
  padding: 24px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  text-align: center;
  color: white;
}

.quiz-result-banner.success-banner {
  background: linear-gradient(135deg, #10b981, #059669);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.quiz-result-banner.failure-banner {
  background: linear-gradient(135deg, #ef4444, #b91c1c);
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

/* ---- FOCUS SUMMARY TABS & LAYOUT ---- */
.focus-summary-tab {
  padding: 14px 20px;
  font-weight: 600;
  font-size: 14px;
  border: none;
  background: none;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  transition: all var(--transition-fast, 0.2s);
}
.focus-summary-tab:hover {
  color: #1e293b;
}
.focus-summary-tab.active {
  color: #8B0000 !important;
  font-weight: 700;
}
.focus-summary-tab::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: transparent;
  transition: all var(--transition-fast, 0.2s);
}
.focus-summary-tab.active::after {
  background: #8B0000 !important;
}

/* ---- PREMIUM PRINTABLE DIGITAL CERTIFICATES ---- */
.cert-page-container {
  min-height: 100vh;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
}

.cert-toolbar {
  height: 64px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
}

.cert-workspace {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-2xl) var(--space-lg);
  overflow-x: auto;
}

.cert-error-card {
  background: #1f2937;
  border: 1px solid #374151;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  max-width: 450px;
}

/* A4 Landscape Ratio Standard for certificate */
.cert-frame {
  width: 900px;
  height: 636px;
  background: #ffffff;
  color: #1e293b;
  position: relative;
  box-shadow: 0 20px 40px rgba(0,0,0,0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 40px;
  flex-shrink: 0;
  box-sizing: border-box;
}

.cert-content {
  width: 100%;
  height: 100%;
  border: 1px solid rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-xl) var(--space-2xl);
  text-align: center;
  z-index: 2;
  box-sizing: border-box;
}

.cert-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.cert-badge-logo {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--font-lg);
  box-shadow: 0 4px 10px rgba(43, 58, 142, 0.2);
}

.cert-issuer {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #64748b;
}

.cert-title {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 4px;
  color: #0f172a;
  margin: 0;
}

.cert-subtitle {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: #64748b;
  margin: 0;
}

.cert-recipient-name {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 8px;
  text-decoration-color: rgba(43, 58, 142, 0.2);
}

.cert-divider {
  width: 120px;
  height: 2px;
  background: #cbd5e1;
}

.cert-desc {
  font-size: 14px;
  color: #475569;
  max-width: 500px;
  margin: 0;
}

.cert-course-title {
  font-size: 26px;
  font-weight: 800;
  color: #0f172a;
  margin: 0;
}

.cert-footer-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  width: 100%;
  align-items: center;
}

.cert-footer-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.cert-footer-lbl {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #94a3b8;
}

.cert-footer-val {
  font-size: 14px;
  font-weight: 600;
  color: #334155;
}

.cursive-font {
  font-family: 'Georgia', serif;
  font-style: italic;
  font-size: var(--font-lg);
  color: var(--color-primary);
}

.cert-stamp-col {
  justify-content: center;
}

.cert-stamp {
  width: 72px;
  height: 72px;
  border: 3px double #10b981;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: rotate(-12deg);
  color: #10b981;
  font-weight: 700;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.05);
}

.cert-stamp-check {
  font-size: 24px;
  line-height: 1;
}

.cert-stamp-lbl {
  font-size: 8px;
  letter-spacing: 1px;
}

.cert-verification-block {
  font-size: 9px;
  color: #94a3b8;
}

/* Certificate Themes Border Styling */

/* Theme Modern */
.cert-theme-modern {
  background: #ffffff;
}
.cert-neon-border {
  position: absolute;
  inset: 15px;
  border: 4px solid transparent;
  background: linear-gradient(white, white) padding-box,
              linear-gradient(135deg, #6366f1, #10b981, #f59e0b) border-box;
  border-radius: 8px;
  pointer-events: none;
  z-index: 1;
}

/* Theme Classic */
.cert-theme-classic {
  background: #fdfbf7;
}
.cert-classic-border {
  position: absolute;
  inset: 15px;
  border: 12px double #854d0e;
  pointer-events: none;
  z-index: 1;
}
.cert-theme-classic .cert-recipient-name {
  color: #854d0e;
  font-family: 'Georgia', serif;
}

/* Theme Royal */
.cert-theme-royal {
  background: #fafaf9;
}
.cert-royal-border {
  position: absolute;
  inset: 15px;
  border: 6px solid #d97706;
  outline: 18px solid #1e3a8a;
  outline-offset: -24px;
  pointer-events: none;
  z-index: 1;
}
.cert-theme-royal .cert-recipient-name {
  color: #1e3a8a;
  font-family: 'Georgia', serif;
}
.cert-theme-royal .cert-title {
  color: #1e3a8a;
}

/* Theme Glass */
.cert-theme-glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
}
.cert-glass-border {
  position: absolute;
  inset: 15px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  box-shadow: inset 0 0 20px rgba(99, 102, 241, 0.1);
  border-radius: 16px;
  pointer-events: none;
  z-index: 1;
}

/* CSS Print Styles */
@media print {
  body * {
    visibility: hidden;
  }
  
  /* Only show the certificate block */
  .cert-workspace, .cert-workspace * {
    visibility: visible;
  }
  
  .cert-workspace {
    position: absolute;
    left: 0;
    top: 0;
    width: 100% !important;
    height: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    background: white !important;
  }
  
  .cert-frame {
    box-shadow: none !important;
    border: none !important;
    page-break-inside: avoid;
    transform: scale(1.0) !important;
    margin: 0 !important;
    background: white !important;
  }

  .cert-toolbar {
    display: none !important;
  }
  
  @page {
    size: landscape;
    margin: 0;
  }
}

/* ---- VISUAL OUTLINE BUILDER ---- */
.builder-workspace {
  animation: fadeIn 0.4s ease;
}

.builder-columns-layout {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.builder-outline-tree {
  min-height: 200px;
}

.builder-section-block {
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
  border-left: 4px solid transparent !important;
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02) !important;
  transition: all var(--transition-base) !important;
}

.builder-section-block:hover {
  border-left-color: #3b82f6 !important;
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.06) !important;
}

.builder-section-title {
  padding: 12px 16px !important;
  background: var(--color-bg-secondary) !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  color: var(--color-text-secondary) !important;
  border-bottom: 1px solid var(--color-border) !important;
  letter-spacing: 0.5px;
}

.builder-items-list {
  padding: 12px;
}

.builder-tree-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
  border-left: 4px solid var(--color-primary) !important;
  padding: 12px 16px !important;
  border-radius: var(--radius-md) !important;
  margin-bottom: var(--space-sm) !important;
  font-size: var(--font-sm);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.01) !important;
  transition: all var(--transition-base) !important;
}

.builder-tree-item:hover {
  border-color: var(--color-primary-light) !important;
  border-left-color: #3b82f6 !important; /* Vibrant neon blue on hover */
  border-left-width: 6px !important;      /* Grows slightly for standard interactive touch */
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.08) !important;
  transform: translateX(4px);
}

.builder-tree-item.quiz-item {
  border-left: 4px solid #f59e0b !important; /* Gold/Amber border for Quizzes */
}

.builder-tree-item.quiz-item:hover {
  border-color: var(--color-primary-light) !important;
  border-left-color: #f59e0b !important; /* Maintain gold accent on hover */
  border-left-width: 6px !important;      /* Grows slightly */
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.1) !important;
  transform: translateX(4px);
}

.builder-tree-item.nested {
  margin-left: 20px !important;
}

.builder-tree-item.nested-deep {
  margin-left: 40px !important;
}

/* Extra utility buttons sizes */
.btn-xs {
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

/* RESPONSIVE LAYOUT FOR FOCUS MODE */
@media (max-width: 1024px) {
  .focus-sidebar {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    z-index: 1000 !important;
  }
  
  .focus-sidebar.open {
    transform: translateX(0);
  }
  
  .focus-sidebar-toggle {
    display: block;
  }

  .focus-viewport {
    padding: 20px 12px !important;
  }

  .focus-content-card {
    width: 100% !important;
    max-width: 100% !important;
    padding: 24px !important;
  }

  .focus-content-card .composer-page-background {
    margin: -24px !important;
    padding: 24px !important;
  }
  
  .builder-columns-layout {
    flex-direction: column;
  }
  
  .builder-columns-layout > div {
    width: 100% !important;
  }
}

/* WYSIWYG Rich Editor Styles */
.rich-editor-container {
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  background: #ffffff !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-md) !important;
  overflow: hidden !important;
}

.rich-editor-toolbar {
  border-bottom: 1px solid var(--color-border);
  gap: 4px;
  background: #f8fafc !important;
  padding: 6px !important;
}

.rich-editor-toolbar button {
  color: #475569 !important;
  transition: all var(--transition-fast) !important;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.rich-editor-toolbar button:hover {
  background: #e2e8f0 !important;
  color: var(--color-primary) !important;
}

.rich-editor-body {
  font-size: var(--font-sm);
  line-height: 1.6;
  color: #0f172a !important;
  background: #ffffff !important;
  min-height: 150px;
  padding: 12px !important;
  box-sizing: border-box !important;
}

.rich-editor-body[contenteditable="true"]:empty::before {
  content: attr(placeholder);
  color: #94a3b8 !important;
  font-style: italic !important;
  pointer-events: none;
  display: block;
}

/* Composer alert rich text content layout overrides */
.composer-alert-block p {
  margin: 0 0 8px 0 !important;
}
.composer-alert-block p:last-child {
  margin-bottom: 0 !important;
}
.composer-alert-block a {
  color: inherit !important;
  text-decoration: underline !important;
  font-weight: 600 !important;
}

.rich-editor-body:focus {
  background: #ffffff !important;
  outline: none !important;
}

.rich-editor-body img {
  display: block;
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: var(--space-md) auto;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.rich-editor-body h1, .rich-editor-body h2 {
  color: var(--color-primary);
  margin-top: 15px;
  margin-bottom: 8px;
}

.rich-editor-body p {
  margin-bottom: 10px;
}

.rich-editor-body ul, .rich-editor-body ol {
  padding-left: 20px;
  margin-bottom: 10px;
}

/* In-Page IFrame PDF Viewer Overlay Styles */
@keyframes modalZoomIn {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.iframe-viewer-modal {
  width: 80% !important;
  max-width: 80% !important;
  height: 90vh !important;
  max-height: 90vh !important;
  border-radius: var(--radius-xl) !important;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4) !important;
  overflow: hidden;
  transition: all var(--transition-base);
}

.iframe-viewer-modal .modal-header {
  margin: 0 !important;
  padding: 12px 24px !important;
  box-sizing: border-box !important;
}

@media (max-width: 992px) {
  .iframe-viewer-modal {
    width: 95% !important;
    max-width: 95% !important;
    height: 95vh !important;
    max-height: 95vh !important;
    border-radius: var(--radius-lg) !important;
  }
}

.iframe-viewer-modal iframe {
  background: #525659;
}

/* Premium links hover animations */
.iframe-modal-link {
  transition: all var(--transition-fast) ease;
}
.iframe-modal-link:hover {
  color: var(--color-primary-hover) !important;
  text-decoration: underline;
  transform: translateY(-0.5px);
}

/* Document Reader print button */
.iframe-viewer-modal .modal-print-btn {
  font-size: 18px;
  cursor: pointer;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 6px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  width: 36px;
  height: 36px;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.iframe-viewer-modal .modal-print-btn:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
  border-color: rgba(43, 58, 142, 0.2);
  transform: translateY(-1px);
}

.iframe-viewer-modal .modal-print-btn:active {
  transform: translateY(0) scale(0.95);
}

.iframe-viewer-modal .modal-close {
  font-size: 26px;
  cursor: pointer;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.iframe-viewer-modal .modal-close:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
  border-color: rgba(43, 58, 142, 0.2);
  transform: translateY(-1px);
}

.iframe-viewer-modal .modal-close:active {
  transform: translateY(0) scale(0.95);
}

/* ---- PREMIUM HTML5-LIKE CUSTOM VIDEO PLAYER ---- */
.premium-player-container {
  position: relative;
  width: 100%;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  font-family: inherit;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.yt-video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
  background: #000;
}

.yt-video-wrapper iframe, .yt-video-wrapper > div:first-child {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  pointer-events: auto;
}

/* Transparent overlay to intercept direct video clicking, preventing YouTube redirects */
.yt-click-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  background: transparent;
  cursor: pointer;
}

/* Custom premium centered play button */
.yt-play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(1);
  width: 72px;
  height: 72px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999; /* Set extremely high to sit on top of browser video shadow DOM */
  pointer-events: none; /* Let click pass through to the click-overlay */
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* Hover effects when hovering over the video container */
.premium-player-container:hover .yt-play-button {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%) scale(1.08);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(255, 255, 255, 0.25);
}

/* Hide when playing */
.premium-player-container.is-playing .yt-play-button {
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -50%) scale(0.8);
}

/* Sleek Notion-style custom control bar */
.premium-player-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.5) 60%, transparent 100%);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  z-index: 15;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-sizing: border-box;
}

.premium-player-container:hover .premium-player-controls {
  opacity: 1;
  transform: translateY(0);
}

.premium-player-controls button {
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 18px;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease, color 0.15s ease;
  line-height: 1;
}

.premium-player-controls button:hover {
  transform: scale(1.15);
  color: var(--color-primary-light, #818cf8);
}

.premium-player-controls button:active {
  transform: scale(0.95);
}

/* Dynamic custom progress bar */
.progress-bar-container {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.24);
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  transition: height 0.2s ease;
  display: flex;
  align-items: center;
}

.progress-bar-container:hover {
  height: 8px;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary, #2b3a8e), var(--color-accent, #6366f1));
  border-radius: 4px;
  width: 0%;
  position: relative;
  transition: width 0.1s linear;
}

.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.progress-bar-container:hover .progress-bar-fill::after {
  opacity: 1;
}

.time-display {
  font-size: var(--font-xs);
  font-weight: 600;
  min-width: 90px;
  text-align: center;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.5px;
}

/* ==========================================================================
   LMS Composer — Premium Visual Page Builder Styles
   ========================================================================== */

.composer-workspace {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  background: #0f172a;
  color: #f8fafc;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  overflow: hidden;
}

.composer-header {
  height: 64px;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #334155;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  flex-shrink: 0;
  z-index: 100;
}

.composer-header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.composer-logo-badge {
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
  user-select: none;
}

.composer-header-title-wrapper {
  display: flex;
  flex-direction: column;
}

.composer-breadcrumbs {
  font-size: 0.65rem;
  color: #94a3b8;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1;
  margin-bottom: 4px;
}

.composer-header-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  line-height: 1.2;
  max-width: 380px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.composer-main-split {
  display: flex;
  flex: 1;
  overflow: hidden;
  width: 100%;
  height: calc(100vh - 64px);
}

/* Sidebar Editor Panel */
.composer-sidebar {
  width: 350px;
  flex-shrink: 0;
  background: #1e293b;
  border-right: 1px solid #334155;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 10;
}

.composer-sidebar-tabs {
  display: flex;
  background: #0f172a;
  border-bottom: 1px solid #334155;
  position: sticky;
  top: 0;
  z-index: 5;
}

.composer-tab-btn {
  flex: 1;
  padding: 14px;
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.2s ease;
}

.composer-tab-btn:hover {
  color: #f8fafc;
}

.composer-tab-btn.active {
  color: #38bdf8;
  border-bottom-color: #38bdf8;
  background: rgba(56, 189, 248, 0.04);
}

.composer-sidebar-content {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}
.composer-sidebar-content::-webkit-scrollbar {
  width: 5px;
}
.composer-sidebar-content::-webkit-scrollbar-track {
  background: transparent;
}
.composer-sidebar-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
}
.composer-sidebar-content::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Widgets Grid */
.composer-widgets-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.composer-widget-card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 16px 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.composer-widget-card:hover {
  background: #334155;
  border-color: #475569;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.composer-widget-card .widget-icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
  display: block;
}

.composer-widget-card .widget-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: #f8fafc;
  display: block;
}

.composer-widget-card .widget-desc {
  font-size: 0.65rem;
  color: #94a3b8;
  margin-top: 4px;
  line-height: 1.3;
  display: block;
}

/* Canvas Area */
.composer-canvas-wrapper {
  flex: 1;
  background: #0f172a;
  padding: 32px;
  overflow-y: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  position: relative;
}

.composer-canvas {
  background: #ffffff;
  /* 85% of the frame around it, rather than a fixed 800px that left most of a
     wide screen empty. */
  width: 85%;
  max-width: none;
  min-height: calc(100vh - 128px);
  border-radius: 16px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  padding: 48px;
  color: #1e293b;
  transition: all 0.3s ease;
  margin-bottom: 60px;
  position: relative;
}

/* Canvas Empty State */
.composer-canvas-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 40px;
  color: #94a3b8;
}

.composer-canvas-empty h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #f8fafc;
  margin: 16px 0 8px 0;
}

/* Blocks on Canvas */
.composer-block-container {
  position: relative;
  border: 2px dashed transparent;
  border-radius: 8px;
  margin: 8px -12px;
  padding: 12px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.composer-block-container:hover {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.015);
}

.composer-block-container.selected {
  border-color: #38bdf8;
  border-style: solid;
  background: rgba(56, 189, 248, 0.03);
}

/* Block Control Toolbar */
.composer-block-tools {
  position: absolute;
  top: -14px;
  right: 12px;
  display: none;
  gap: 4px;
  background: #38bdf8;
  color: #ffffff;
  padding: 3px 8px;
  border-radius: 4px;
  z-index: 100;
  box-shadow: 0 4px 12px rgba(56, 189, 248, 0.4);
  align-items: center;
}

.composer-block-container:hover .composer-block-tools,
.composer-block-container.selected .composer-block-tools {
  display: flex;
}

.block-tool-label {
  font-size: 0.6rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-right: 8px;
  letter-spacing: 0.5px;
  opacity: 0.95;
  user-select: none;
}

.block-tool-btn {
  background: none;
  border: none;
  padding: 2px 4px;
  cursor: pointer;
  font-size: 0.75rem;
  border-radius: 3px;
  transition: all 0.15s ease;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.block-tool-btn:hover:not([disabled]) {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.1);
}

.block-tool-btn.danger:hover {
  background: #ef4444;
}

.block-tool-btn[disabled] {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Inspector form styling inside sidebar */
.composer-inspector-fields {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 12px;
}

.composer-inspector-fields .form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.composer-inspector-fields .form-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.composer-inspector-fields .form-input,
.composer-inspector-fields .form-select,
.composer-inspector-fields .form-textarea {
  background: #0f172a;
  border: 1px solid #334155;
  color: #f8fafc;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  width: 100%;
  font-family: inherit;
  transition: border-color 0.2s;
}

.composer-inspector-fields .form-input:focus,
.composer-inspector-fields .form-select:focus,
.composer-inspector-fields .form-textarea:focus {
  border-color: #38bdf8;
  outline: none;
}

.composer-inspector-fields .form-textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

/* Preview / Student view simulations */
.composer-workspace.preview-mode .composer-sidebar {
  display: none;
}

.composer-workspace.preview-mode .composer-canvas-wrapper {
  background: #f1f5f9;
  padding: 40px 16px;
}

.composer-workspace.preview-mode .composer-canvas {
  max-width: 850px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  border-radius: 12px;
  padding: 48px;
}

.composer-rendered-preview-block {
  margin-bottom: 24px;
}

/* Ensure rich editor compiled images or standard texts are fully responsive */
.composer-text-block img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* High-Contrast Automatic Text Styling for Backgrounds */
.has-light-text,
.composer-page-background.has-light-text {
  color: #f8fafc !important;
  --color-text: #f8fafc !important;
  --color-text-muted: #94a3b8 !important;
}

.has-light-text .composer-text-block,
.has-light-text .composer-text-block p,
.has-light-text .composer-text-block span,
.has-light-text .composer-text-block li,
.has-light-text .composer-text-block td,
.composer-page-background.has-light-text .composer-text-block,
.composer-page-background.has-light-text .composer-text-block p,
.composer-page-background.has-light-text .composer-text-block span,
.composer-page-background.has-light-text .composer-text-block li,
.composer-page-background.has-light-text .composer-text-block td {
  color: #f8fafc !important;
}

.has-light-text h1,
.has-light-text h2,
.has-light-text h3,
.has-light-text h4,
.composer-page-background.has-light-text h1,
.composer-page-background.has-light-text h2,
.composer-page-background.has-light-text h3,
.composer-page-background.has-light-text h4 {
  color: #ffffff !important;
}

.has-dark-text,
.composer-page-background.has-dark-text {
  color: #0f172a !important;
  --color-text: #0f172a !important;
  --color-text-muted: #64748b !important;
}

/* Card Widget Contrast Protections */
.composer-pdf-card,
.composer-external-link-card,
.composer-resource-card,
.composer-pdf-editable-container,
.composer-question-card {
  background: #ffffff !important;
  border: 1px solid var(--color-border, #e2e8f0) !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08) !important;
  color: #0f172a !important;
}

.composer-pdf-card div,
.composer-external-link-card div,
.composer-resource-card div,
.composer-pdf-editable-container div,
.composer-question-card div {
  color: #0f172a !important;
}

.composer-pdf-card div > div > div:last-child,
.composer-external-link-card div > div > div:last-child,
.composer-resource-card div > div > div:last-child,
.composer-pdf-editable-container div > div > div:last-child,
.composer-question-card .feedback-explanation {
  color: #64748b !important;
}

.composer-text-block p {
  margin-bottom: 16px;
}

.composer-text-block p:last-child {
  margin-bottom: 0;
}

.composer-text-block ul,
.composer-text-block ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

/* Premium micro-animations for Resource and PDF Cards */
.composer-resource-card,
.composer-pdf-card {
  transition: transform 0.25s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.25s cubic-bezier(0.25, 0.8, 0.25, 1), border-color 0.25s ease !important;
}

.composer-resource-card:hover,
.composer-pdf-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(25, 42, 61, 0.12) !important;
  border-color: rgba(99, 102, 241, 0.4) !important;
}

.composer-resource-card .btn,
.composer-pdf-card .btn {
  transition: transform 0.25s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.25s cubic-bezier(0.25, 0.8, 0.25, 1), filter 0.2s ease !important;
}

.composer-resource-card:hover .btn,
.composer-pdf-card:hover .btn {
  transform: scale(1.02) translateY(-0.5px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25) !important;
}

.composer-resource-card .btn:active,
.composer-pdf-card .btn:active {
  transform: scale(0.97);
}

/* Responsive Global School Switcher */
.school-switcher-container {
  margin-left: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

#global-school-switcher {
  width: 220px;
  padding: 6px 12px;
  font-size: var(--font-sm);
  margin-bottom: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  transition: all 0.2s ease;
}

#global-school-switcher:hover {
  border-color: var(--color-primary);
}

@media (max-width: 1024px) {
  .school-switcher-container {
    margin-left: 8px;
  }
  .school-switcher-container .school-switcher-label {
    display: none !important; /* Hide label on mobile to save space */
  }
  #global-school-switcher {
    width: 140px !important; /* Slimmer switcher on mobile */
    font-size: var(--font-xs) !important;
    padding: 4px 8px !important;
  }
}

/* The super admin's Students switch, where the school picker was (19 Oct 2026) */
.student-source-toggle {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--color-surface);
  flex: 0 0 auto;
}
.student-source-btn {
  border: 0;
  background: transparent;
  padding: 5px 12px;
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--color-text-secondary);
  cursor: pointer;
  white-space: nowrap;
}
.student-source-btn + .student-source-btn { border-left: 1px solid var(--color-border); }
.student-source-btn:hover { color: var(--color-primary); }
.student-source-btn.on { background: var(--color-primary); color: #fff; }
@media (max-width: 1024px) {
  .student-source-btn { padding: 4px 9px; font-size: 11px; }
}

/* Responsive Allowed Schools Checklist Grid */
.allowed-schools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  max-height: 180px;
  overflow-y: auto;
}

.allowed-school-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: var(--font-sm);
  user-select: none;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.allowed-school-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* Responsive Form Rows for Modals */
.form-row {
  display: flex;
  gap: 12px;
  width: 100%;
}

.form-row-item {
  flex: 1;
  min-width: 0; /* Prevents overflow inside flex box */
}

@media (max-width: 576px) {
  .form-row {
    flex-direction: column;
    gap: 0px; /* Form groups already have margin/padding bottom */
  }
  .form-row-item {
    width: 100%;
  }
}

/* ---- GLOBAL MOBILE RESPONSIVENESS OVERRIDES ---- */
.table-responsive {
  display: block !important;
  width: 100% !important;
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch !important;
  margin-bottom: var(--space-md) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-md) !important;
}
.table-responsive table {
  margin-bottom: 0 !important;
  border: none !important;
}

@media (max-width: 768px) {
  .table-container {
    -webkit-overflow-scrolling: touch !important;
  }
}

@media (max-width: 576px) {
  .card, .stat-card {
    padding: var(--space-md) !important; /* 16px padding on mobile to save screen width */
  }
  .toast {
    min-width: calc(100vw - 32px) !important;
    right: 16px !important;
  }
}

@media (max-width: 480px) {
  .page-content {
    padding: var(--space-sm) !important; /* 8px/12px padding on tiny screens */
  }
  .card {
    padding: 12px !important;
  }
  .stat-card {
    flex-direction: column !important;
    align-items: center !important;
    text-align: center !important;
    gap: 12px !important;
    padding: 16px !important;
  }
  .stat-icon {
    margin: 0 auto !important;
  }
  .stat-value {
    font-size: var(--font-2xl) !important;
  }
}

/* ---- CURRICULUM OUTLINE BUILDER DESKTOP STYLING ---- */
.course-builder-cover-banner {
  position: relative;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg, 12px);
  overflow: hidden;
  margin-top: 16px;
  margin-bottom: 8px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.course-builder-cover-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.course-builder-title-block {
  margin-top: 12px;
  margin-bottom: 16px;
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.course-builder-mobile-thumb {
  display: none;
}

.course-builder-meta {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-primary, #2B3A8E);
  display: block;
  margin-bottom: 4px;
}

.course-builder-main-title {
  font-size: 26px;
  font-weight: 800;
  margin: 0;
  color: var(--color-text, #192A3D);
}

/* ---- FOCUS MODE PREMIUM RESPONSIVE UTILITIES ---- */
.focus-tabs-container {
  display: flex;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(0, 0, 0, 0.15);
  padding: 0 24px;
  align-items: center;
  justify-content: space-between;
  height: 50px;
}

.focus-split-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 380px;
}

.focus-left-sidebar {
  padding: 32px 24px;
  background: rgba(0, 0, 0, 0.2);
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-right: 1px solid rgba(255,255,255,0.06);
  border-bottom-left-radius: 16px;
  box-sizing: border-box;
}

.focus-right-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-bottom-right-radius: 16px;
  background: rgba(15, 23, 42, 0.25);
  box-sizing: border-box;
}

/* ---- CURRICULUM OUTLINE BUILDER MOBILE OPTIMIZATION ---- */
@media (max-width: 768px) {
  .page-header.flex {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 12px !important;
  }

  .course-builder-cover-banner {
    display: none !important;
  }

  .course-builder-title-block {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    margin-top: 12px !important;
    margin-bottom: 12px !important;
    padding: 12px !important;
    background: var(--color-bg-secondary) !important;
    border-radius: var(--radius-lg, 12px) !important;
    border: 1px solid var(--color-border) !important;
    box-shadow: var(--shadow-sm) !important;
  }

  .course-builder-mobile-thumb {
    display: block !important;
    width: 80px !important;
    height: 50px !important;
    object-fit: cover !important;
    border-radius: var(--radius-md, 8px) !important;
    border: 1px solid var(--color-border) !important;
    flex-shrink: 0 !important;
  }

  .course-builder-main-title {
    font-size: 18px !important;
    font-weight: 700 !important;
    line-height: 1.25 !important;
  }

  .course-builder-meta {
    font-size: 9px !important;
    letter-spacing: 1px !important;
    margin-bottom: 2px !important;
  }

  .builder-header-actions {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
    width: 100% !important;
    margin-top: 12px !important;
  }
  .builder-header-actions button, .builder-header-actions a {
    width: 100% !important;
    justify-content: center !important;
    font-size: 11px !important;
    padding: 8px var(--space-sm) !important;
  }
  .builder-header-actions button:last-child {
    grid-column: span 2 !important;
  }

  .builder-section-title {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: var(--space-sm) !important;
  }
  .builder-section-title > div:last-child {
    width: 100% !important;
    justify-content: flex-start !important;
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
  }
  
  .builder-tree-item {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: var(--space-sm) !important;
  }
  .builder-tree-item > div:last-child {
    width: 100% !important;
    justify-content: flex-start !important;
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
  }

  /* Compact indentation on mobile to maximize horizontal workspace */
  .builder-tree-item.nested {
    margin-left: 10px !important;
  }
  .builder-tree-item.nested-deep {
    margin-left: 20px !important;
  }

  .btn-text-responsive {
    display: none !important;
  }

  /* Modern PDF Reader Optimizations on Mobile */
  #pdf-viewer-content {
    padding: 10px !important;
    -webkit-overflow-scrolling: touch !important;
  }

  .iframe-modal-logo, 
  .iframe-modal-separator {
    display: none !important;
  }

  #iframe-modal-title-text {
    max-width: 140px !important;
  }

  .iframe-viewer-modal .modal-print-btn,
  .iframe-viewer-modal .modal-close {
    width: 40px !important;
    height: 40px !important;
    font-size: 20px !important;
  }

  /* Focus Mode Stacking Layout for Mobile screens */
  .focus-tabs-container {
    padding: 0 12px !important;
    height: auto !important;
    min-height: 50px !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
    padding-top: 8px !important;
    padding-bottom: 8px !important;
  }
  .focus-tabs-container > div {
    justify-content: space-around !important;
    width: 100% !important;
  }
  .focus-split-container {
    grid-template-columns: 1fr !important;
    min-height: auto !important;
  }
  .focus-left-sidebar {
    border-right: none !important;
    border-bottom: none !important;
    border-bottom-left-radius: 16px !important;
    border-bottom-right-radius: 16px !important;
    padding: 24px 16px !important;
    width: 100% !important;
    order: 2 !important;
  }
  .focus-right-body {
    border-bottom: 1px solid rgba(255,255,255,0.06) !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
    padding: 24px 16px !important;
    width: 100% !important;
    order: 1 !important;
  }
  .focus-footer-logo {
    display: none !important;
  }
}

/* ---- COMPREHENSIVE SITE-WIDE MOBILE OVERRIDES ---- */
@media (max-width: 768px) {
  /* Dynamic Grids Stacking */
  .lessons-layout-grid,
  .gamification-hub-split,
  .gamification-settings-split,
  .gamification-shop-split,
  .gamification-badges-split,
  .gamification-profile-modal-split,
  .profile-layout-grid,
  .academic-layout-grid,
  .achievements-layout-grid,
  .stats-layout-grid,
  .live-class-report-grid,
  .builder-teachers-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  /* Academic Calendar Weekly View Stacking */
  .cal-week-layout {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  .cal-week-column {
    min-height: auto !important;
    padding: 12px !important;
    border-radius: var(--radius-md) !important;
    border: 1px solid var(--color-border) !important;
  }

  /* Calendar Filter Bar Stacking */
  .cal-filters-bar {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
    padding: 12px !important;
  }
  .cal-filters-left {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
  }
  .cal-search-input,
  .cal-select-filter {
    width: 100% !important;
  }
  .calendar-views-tabs {
    justify-content: center !important;
  }

  /* Course Builder Fullscreen Workbench Stacking */
  #quiz-builder-workspace .qb-body {
    flex-direction: column !important;
    overflow-y: auto !important;
  }
  #quiz-builder-workspace .qb-panel-left {
    width: 100% !important;
    height: 250px !important;
    border-right: none !important;
    border-bottom: 1px solid rgba(255,255,255,.08) !important;
  }
  #quiz-builder-workspace .qb-editor-scroll {
    padding: 16px !important;
  }
  #quiz-builder-workspace .qb-points-row {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  /* Focus Mode Header Topbar Mobile Spacing Overrides */
  .focus-topbar {
    height: 60px !important;
    padding: 0 var(--space-md) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: nowrap !important;
    gap: 8px !important;
  }
  .focus-item-title {
    display: none !important;
  }
  .focus-sidebar-toggle {
    display: block !important;
    padding: 6px 12px !important;
    font-size: 12px !important;
    margin: 0 !important;
    flex-shrink: 0 !important;
  }
  .focus-topbar-controls {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 8px !important;
    width: auto !important;
    border-top: none !important;
    padding-top: 0 !important;
    margin: 0 !important;
    flex-shrink: 0 !important;
    flex-wrap: nowrap !important;
  }
  .focus-topbar-controls .focus-font-controls {
    margin-left: 0 !important;
  }

  /* Compact system clock & gamification points on mobile */
  .system-clock-wrapper {
    padding: 4px 10px !important;
    gap: 6px !important;
  }
  #system-time-clock {
    font-size: 16px !important;
  }
  #system-time-suffix {
    font-size: 9px !important;
  }
  .focus-hud-gamification {
    padding: 4px 10px !important;
    font-size: 12px !important;
    gap: 4px !important;
  }

  /* Make Accessibility controls a floating dropdown toggled via onclick */
  .focus-font-controls {
    position: relative;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
  }
  
  .focus-font-icon {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background: rgba(15, 23, 42, 0.55);
    border: 1.5px solid rgba(43, 58, 142, 0.35);
    border-radius: 50%;
    color: #00d2ff !important;
    font-size: 14px !important;
    cursor: pointer;
    margin: 0 !important;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  }
  
  /* Hide actual adjust dropdown by default on mobile */
  .focus-font-dropdown {
    display: none !important;
  }
  
  /* Floating menu when .open is toggled */
  .focus-font-dropdown.open {
    position: absolute;
    top: 45px;
    right: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1.5px solid rgba(43, 58, 142, 0.5) !important;
    border-radius: 20px !important;
    padding: 6px 12px !important;
    gap: 8px !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: flex !important;
    align-items: center;
    white-space: nowrap;
  }

  .focus-viewport {
    padding: 6px 8px !important;
  }

  .focus-content-card {
    width: calc(100% - 8px) !important;
    max-width: 100% !important;
    padding: 12px 14px !important;
  }

  .focus-content-card .composer-page-background {
    margin: -12px -14px !important;
    padding: 16px 18px !important;
  }
}

@media (max-width: 600px) {
  /* Modals Layout Fields Stacking */
  .builder-grid-2,
  .builder-grid-3 {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Monthly Calendar Grid Clean Indicators (iOS/Android Native Style) */
  .cal-cell {
    min-height: 55px !important;
    padding: 4px !important;
  }
  .cal-grid-hdr {
    padding: 6px 2px !important;
    font-size: 9px !important;
    letter-spacing: 0.5px !important;
  }
  .cal-cell-header {
    margin-bottom: 2px !important;
  }
  .cal-cell-add-btn {
    display: none !important; /* Hide direct action button on small viewports */
  }
  /* Turn long event texts into colored circles to fit in small columns */
  .cal-event-badge {
    padding: 0 !important;
    height: 6px !important;
    width: 6px !important;
    min-width: 6px !important;
    border-radius: 50% !important;
    font-size: 0 !important; /* hides text */
    display: inline-block !important;
    margin: 2px auto 0 auto !important;
    box-shadow: none !important;
    border: none !important;
  }
  .cal-pills-stack {
    flex-direction: row !important;
    justify-content: center !important;
    flex-wrap: wrap !important;
    gap: 3px !important;
    max-height: 25px !important;
    overflow: hidden !important;
  }
  .cal-pill-more {
    font-size: 8px !important;
    margin-top: 0 !important;
  }
}

@media (max-width: 576px) {
  /* Course Builder Question Type Tabs Layout */
  .qb-type-tabs {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}



/* ---- FOCUS MODE MOBILE RESPONSIVE OPTIMIZATIONS ---- */
.focus-teachers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.focus-editor-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.focus-quiz-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.focus-sidebar-close {
  display: none;
}

@media (max-width: 768px) {
  .focus-teachers-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }
  .focus-editor-grid {
    grid-template-columns: 1fr !important;
  }
  .focus-quiz-stats-grid {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }
}

@media (max-width: 1024px) {
  .focus-sidebar-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 16px;
    cursor: pointer;
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
    transition: background 0.2s;
  }
  .focus-sidebar-close:hover {
    background: rgba(255, 255, 255, 0.2);
  }
}

/* ---- FOCUS MODE COVER BANNERS ---- */
.focus-summary-banner {
  position: relative;
  width: 100%;
  height: auto;
  overflow: hidden;
  background: #0b0f19;
}

.focus-summary-banner img {
  width: 100%;
  height: auto;
  display: block;
}

.focus-welcome-banner {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg, 12px);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin-bottom: 12px;
  position: relative;
}

.focus-welcome-banner img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 768px) {
  .focus-summary-banner {
    height: auto !important;
  }
  .focus-welcome-banner {
    height: auto !important;
  }
}

/* PWA Custom Install Banner Notification */
.pwa-install-banner {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(15, 23, 42, 0.88); /* Sleek slate background */
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 380px;
  z-index: 999999;
  transform: translateY(150px);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.5s;
}

.pwa-install-banner.active {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.pwa-install-content {
  display: flex;
  gap: 16px;
  align-items: center;
}

.pwa-install-icon {
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pwa-install-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.pwa-install-text {
  text-align: left;
}

.pwa-install-text h4 {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 4px 0;
  letter-spacing: -0.2px;
}

.pwa-install-text p {
  font-size: 12px;
  color: #94a3b8;
  margin: 0;
  line-height: 1.4;
}

.pwa-install-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.btn-pwa-dismiss {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #cbd5e1;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-pwa-dismiss:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-pwa-install {
  background: linear-gradient(135deg, #6366f1, #4f46e5); /* Indigo gradient */
  border: none;
  color: #ffffff;
  padding: 8px 20px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-pwa-install:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4), 0 0 8px rgba(99, 102, 241, 0.2);
}

.btn-pwa-install:active {
  transform: translateY(0);
}

@media (max-width: 480px) {
  .pwa-install-banner {
    left: 16px;
    right: 16px;
    bottom: 16px;
    max-width: none;
  }
}

/* Premium Interactive Question Block */
.composer-question-card {
  border: 2px solid var(--color-border);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.composer-question-option-btn {
  width: 100%;
  text-align: left;
  padding: 14px 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--font-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}
.composer-question-option-btn:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.08);
}
.composer-question-option-btn:active {
  transform: translateY(0);
}

/* ---- WYSIWYG RICH TEXT STYLES ---- */
.assignment-desc-content {
  font-size: var(--font-sm);
  color: var(--color-text);
  line-height: 1.6;
}
.assignment-desc-content p {
  margin-bottom: var(--space-sm, 8px);
}
.assignment-desc-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md, 8px);
  margin: var(--space-sm, 10px) 0;
  display: block;
}
.assignment-desc-content ul {
  list-style-type: disc !important;
  padding-left: var(--space-xl, 24px) !important;
  margin: var(--space-xs, 8px) 0 !important;
}
.assignment-desc-content ol {
  list-style-type: decimal !important;
  padding-left: var(--space-xl, 24px) !important;
  margin: var(--space-xs, 8px) 0 !important;
}
.assignment-desc-content a {
  color: var(--color-primary);
  text-decoration: underline;
}
.assignment-desc-content h1, 
.assignment-desc-content h2, 
.assignment-desc-content h3, 
.assignment-desc-content h4 {
  margin-top: var(--space-md, 16px);
  margin-bottom: var(--space-xs, 8px);
  font-weight: 700;
  color: var(--color-text);
}

/* Quill Snow custom overrides for dark / themed mode compatibility */
.ql-toolbar.ql-snow {
  border-color: var(--color-border) !important;
  background: var(--color-bg-secondary) !important;
  border-top-left-radius: var(--radius-md) !important;
  border-top-right-radius: var(--radius-md) !important;
}
.ql-container.ql-snow {
  border-color: var(--color-border) !important;
  background: var(--color-surface) !important;
  border-bottom-left-radius: var(--radius-md) !important;
  border-bottom-right-radius: var(--radius-md) !important;
  font-family: inherit !important;
  font-size: var(--font-xs) !important;
  color: var(--color-text) !important;
}
.ql-editor {
  min-height: 200px;
  max-height: 400px;
  overflow-y: auto;
}
.ql-snow .ql-stroke {
  stroke: var(--color-text-secondary) !important;
}
.ql-snow .ql-fill {
  fill: var(--color-text-secondary) !important;
}
.ql-snow .ql-picker {
  color: var(--color-text-secondary) !important;
}
.ql-snow .ql-picker-options {
  background-color: var(--color-surface) !important;
  border-color: var(--color-border) !important;
}