/* ==========================================================================
   Socket Study — Design System (Residual)
   Cross-cutting component styles shared across multiple pages.
   Page-specific styles live in their own files (see target structure in plan).
   Tokens → tokens.css | Base → base.css | Utilities → utilities.css
   ========================================================================== */

/* Centralized content padding utilities for consistent side spacing */
.content-padding {
  padding-left: var(--dq-space-4) !important;
  padding-right: var(--dq-space-4) !important;
}

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

@media (min-width: 576px) {
  .d-sm-none { display: none !important; }
  .d-sm-inline { display: inline !important; }
  .d-sm-inline-block { display: inline-block !important; }
  .d-sm-block { display: block !important; }
  .d-sm-flex { display: flex !important; }
  .d-sm-inline-flex { display: inline-flex !important; }
  .d-sm-grid { display: grid !important; }
}

@media (min-width: 768px) {
  .d-md-none { display: none !important; }
  .d-md-inline { display: inline !important; }
  .d-md-inline-block { display: inline-block !important; }
  .d-md-block { display: block !important; }
  .d-md-flex { display: flex !important; }
  .d-md-inline-flex { display: inline-flex !important; }
  .d-md-grid { display: grid !important; }
}

@media (min-width: 992px) {
  .d-lg-none { display: none !important; }
  .d-lg-inline { display: inline !important; }
  .d-lg-inline-block { display: inline-block !important; }
  .d-lg-block { display: block !important; }
  .d-lg-flex { display: flex !important; }
  .d-lg-inline-flex { display: inline-flex !important; }
  .d-lg-grid { display: grid !important; }
}

@media (min-width: 1200px) {
  .d-xl-none { display: none !important; }
  .d-xl-inline { display: inline !important; }
  .d-xl-inline-block { display: inline-block !important; }
  .d-xl-block { display: block !important; }
  .d-xl-flex { display: flex !important; }
  .d-xl-inline-flex { display: inline-flex !important; }
  .d-xl-grid { display: grid !important; }
}

/* ==========================================================================
   Component Styles
   ========================================================================== */

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

.dq-card {
  background: var(--dq-white);
  border-radius: var(--dq-radius-lg);
  box-shadow: var(--dq-shadow);
  border: 1px solid var(--dq-gray-200);
  transition: var(--dq-transition-normal);
  overflow: hidden;
}

/* Removed hover effect for flat design */

.dq-card-header {
  padding: var(--dq-space-6);
  border-bottom: 1px solid var(--dq-gray-200);
  background-color: var(--dq-gray-50);
}

.dq-card-body {
  padding: var(--dq-space-6);
}

.dq-card-footer {
  padding: var(--dq-space-6);
  border-top: 1px solid var(--dq-gray-200);
  background-color: var(--dq-gray-50);
}

/* Stats Cards */
.dq-stats-card {
  background: linear-gradient(135deg, var(--dq-primary) 0%, var(--dq-primary-dark) 100%);
  color: var(--dq-white);
  border: none;
  position: relative;
  overflow: hidden;
}

.dq-stats-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transform: translate(30px, -30px);
}

.dq-stats-card .dq-card-body {
  position: relative;
  z-index: 1;
}

.dq-stats-number {
  font-size: var(--dq-font-size-4xl);
  font-weight: var(--dq-font-weight-bold);
  line-height: 1;
  margin-bottom: var(--dq-space-2);
}

.dq-stats-label {
  font-size: var(--dq-font-size-sm);
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Content Cards */
.dq-content-card {
  background: var(--dq-white);
  border-radius: var(--dq-radius-lg);
  box-shadow: var(--dq-shadow);
  border: 1px solid var(--dq-gray-200);
  transition: var(--dq-transition-normal);
}

/* Removed hover effect for flat design */

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

.dq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--dq-space-3) var(--dq-space-6);
  font-size: var(--dq-font-size-base);
  font-weight: var(--dq-font-weight-medium);
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  border-radius: var(--dq-radius);
  transition: var(--dq-transition-normal);
  white-space: nowrap;
  gap: var(--dq-space-2);
}

.dq-btn:disabled,
.dq-btn.disabled {
  opacity: 0.65;
  cursor: not-allowed;
  pointer-events: none;
}

.dq-btn:focus {
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Primary Button - Socket Yellow */
.dq-btn-primary {
  color: var(--dq-gray-900);
  background-color: var(--dq-warning);
  border-color: var(--dq-warning);
  font-weight: var(--dq-font-weight-semibold);
  box-shadow: var(--dq-shadow-md);
}

.dq-btn-primary:hover {
  color: var(--dq-gray-900);
  background-color: var(--dq-warning-dark);
  border-color: var(--dq-warning-dark);
  transform: translateY(-2px);
  box-shadow: var(--dq-shadow-lg);
}

.dq-btn-primary:active {
  background-color: var(--dq-warning-dark);
  border-color: var(--dq-warning-dark);
  transform: translateY(0);
}

/* Secondary Button */
.dq-btn-secondary {
  color: var(--dq-white);
  background-color: var(--dq-secondary);
  border-color: var(--dq-secondary);
}

.dq-btn-secondary:hover {
  color: var(--dq-white);
  background-color: var(--dq-secondary-dark);
  border-color: var(--dq-secondary-dark);
  /* Removed transform and shadow for flat design */
}

/* Outline Button */
.dq-btn-outline-primary {
  color: var(--dq-primary);
  background-color: transparent;
  border-color: var(--dq-primary);
}

.dq-btn-outline-primary:hover {
  color: var(--dq-white);
  background-color: var(--dq-primary);
  border-color: var(--dq-primary);
  /* Removed transform and shadow for flat design */
}

.dq-btn-outline-secondary {
  color: var(--dq-secondary);
  background-color: transparent;
  border-color: var(--dq-secondary);
}

.dq-btn-outline-secondary:hover {
  color: var(--dq-white);
  background-color: var(--dq-secondary);
  border-color: var(--dq-secondary);
  /* Removed transform and shadow for flat design */
}

/* Warning Button */
.dq-btn-warning {
  color: var(--dq-gray-800);
  background-color: var(--dq-warning);
  border-color: var(--dq-warning);
  transition: all var(--dq-transition-normal);
}

.dq-btn-warning:hover {
  color: var(--dq-gray-800);
  background-color: var(--dq-warning-dark);
  border-color: var(--dq-warning-dark);
  /* Removed transform and shadow for flat design */
}

.dq-btn-warning:active {
  background-color: var(--dq-warning-dark);
  border-color: var(--dq-warning-dark);
  transform: translateY(0);
}

/* Disabled Button State */
.dq-btn-disabled {
  color: var(--dq-gray-500);
  background-color: var(--dq-gray-200);
  border-color: var(--dq-gray-300);
  cursor: not-allowed;
  opacity: 0.6;
  transition: all var(--dq-transition-normal);
}

.dq-btn-disabled:hover {
  color: var(--dq-gray-500);
  background-color: var(--dq-gray-200);
  border-color: var(--dq-gray-300);
  transform: none;
  box-shadow: none;
  cursor: not-allowed;
}

/* Danger Button */
.dq-btn-danger {
  color: var(--dq-white);
  background-color: var(--dq-danger);
  border-color: var(--dq-danger);
}

.dq-btn-danger:hover {
  color: var(--dq-white);
  background-color: var(--dq-danger-dark);
  border-color: var(--dq-danger-dark);
  /* Removed transform and shadow for flat design */
}

/* Ghost Button */
.dq-btn-ghost {
  color: var(--dq-gray-600);
  background-color: transparent;
  border-color: transparent;
}

/* Removed hover effect for flat design */

/* Button Sizes */
.dq-btn-sm {
  padding: var(--dq-space-2) var(--dq-space-4);
  font-size: var(--dq-font-size-sm);
  border-radius: var(--dq-radius-sm);
}

.dq-btn-lg {
  padding: var(--dq-space-4) var(--dq-space-8);
  font-size: var(--dq-font-size-lg);
  border-radius: var(--dq-radius-md);
}

/* Button Groups */
.dq-btn-group {
  display: inline-flex;
  vertical-align: middle;
}

.dq-btn-group .dq-btn {
  position: relative;
  flex: 1 1 auto;
}

.dq-btn-group .dq-btn:not(:first-child) {
  margin-left: -1px;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.dq-btn-group .dq-btn:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

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

.dq-form-group {
  margin-bottom: var(--dq-space-6);
}

.dq-form-label {
  display: block;
  margin-bottom: var(--dq-space-2);
  font-weight: var(--dq-font-weight-medium);
  color: var(--dq-gray-700);
  font-size: var(--dq-font-size-sm);
}

.dq-form-control {
  display: block;
  width: 100%;
  padding: var(--dq-space-3) var(--dq-space-4);
  font-size: var(--dq-font-size-base);
  font-weight: var(--dq-font-weight-normal);
  line-height: 1.5;
  color: var(--dq-gray-800);
  background-color: var(--dq-white);
  background-clip: padding-box;
  border: 1px solid var(--dq-gray-300);
  border-radius: var(--dq-radius);
  transition: var(--dq-transition-normal);
}

.dq-form-control:focus {
  color: var(--dq-gray-800);
  background-color: var(--dq-white);
  border-color: var(--dq-primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.dq-form-control:disabled,
.dq-form-control[readonly] {
  background-color: var(--dq-gray-100);
  opacity: 1;
}

.dq-form-control.is-valid {
  border-color: var(--dq-secondary);
  box-shadow: 0 0 0 0.2rem rgba(158, 228, 147, 0.25);
  transition: all var(--dq-transition-normal);
}

.dq-form-control.is-invalid {
  border-color: var(--dq-danger);
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
  transition: all var(--dq-transition-normal);
}

.dq-form-text {
  margin-top: var(--dq-space-2);
  font-size: var(--dq-font-size-sm);
  color: var(--dq-gray-500);
}

.dq-invalid-feedback {
  display: block;
  width: 100%;
  margin-top: var(--dq-space-2);
  font-size: var(--dq-font-size-sm);
  color: var(--dq-danger);
  font-weight: var(--dq-font-weight-medium);
}

.dq-invalid-feedback::before {
  content: '\f057';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-right: var(--dq-space-2);
  color: var(--dq-danger);
}

.dq-valid-feedback {
  display: block;
  width: 100%;
  margin-top: var(--dq-space-2);
  font-size: var(--dq-font-size-sm);
  color: var(--dq-secondary);
  font-weight: var(--dq-font-weight-medium);
}

.dq-valid-feedback::before {
  content: '\f058';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-right: var(--dq-space-2);
  color: var(--dq-secondary);
}

/* Form Check */
.dq-form-check {
  position: relative;
  display: block;
  padding-left: 1.25rem;
  margin-bottom: var(--dq-space-3);
}

.dq-form-check-input {
  position: absolute;
  margin-top: 0.3rem;
  margin-left: -1.25rem;
}

.dq-form-check-label {
  margin-bottom: 0;
  cursor: pointer;
}

/* ==========================================================================
   Tables
   ========================================================================== */

.dq-table {
  width: 100%;
  margin-bottom: var(--dq-space-6);
  color: var(--dq-gray-800);
  vertical-align: top;
  border-color: var(--dq-gray-300);
}

.dq-table > :not(caption) > * > * {
  padding: var(--dq-space-4);
  border-bottom-width: 1px;
}

.dq-table > tbody {
  vertical-align: inherit;
}

.dq-table > thead {
  vertical-align: bottom;
}

.dq-table > :not(:first-child) {
  border-top: 2px solid currentColor;
}

.dq-table-striped > tbody > tr:nth-of-type(odd) > * {
  background-color: rgba(0, 0, 0, 0.02);
}

/* Removed table row hover effect for flat design */

.dq-table-bordered > :not(caption) > * {
  border-width: 1px 0;
}

.dq-table-bordered > :not(caption) > * > * {
  border-width: 0 1px;
}


/* ==========================================================================
   Modals & Overlays
   ========================================================================== */

/* Ensure all modals and backdrops have correct z-index for sticky navbar */
.modal {
  z-index: var(--dq-z-modal);
}

.modal-backdrop {
  z-index: var(--dq-z-modal-backdrop);
}

.dq-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--dq-z-modal-backdrop);
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.dq-modal {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--dq-z-modal);
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}

.dq-modal-dialog {
  position: relative;
  width: auto;
  margin: var(--dq-space-8) auto;
  pointer-events: none;
  max-width: 500px;
}

.dq-modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  pointer-events: auto;
  background-color: var(--dq-white);
  background-clip: padding-box;
  border: 1px solid var(--dq-gray-300);
  border-radius: var(--dq-radius-lg);
  outline: 0;
  box-shadow: var(--dq-shadow-xl);
}

.dq-modal-header {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: space-between;
  padding: var(--dq-space-6);
  border-bottom: 1px solid var(--dq-gray-200);
  border-top-left-radius: calc(var(--dq-radius-lg) - 1px);
  border-top-right-radius: calc(var(--dq-radius-lg) - 1px);
}

.dq-modal-title {
  margin-bottom: 0;
  line-height: 1.5;
}

.dq-modal-body {
  position: relative;
  flex: 1 1 auto;
  padding: var(--dq-space-6);
}

.dq-modal-footer {
  display: flex;
  flex-wrap: wrap;
  flex-shrink: 0;
  align-items: center;
  justify-content: flex-end;
  padding: var(--dq-space-6);
  border-top: 1px solid var(--dq-gray-200);
  border-bottom-right-radius: calc(var(--dq-radius-lg) - 1px);
  border-bottom-left-radius: calc(var(--dq-radius-lg) - 1px);
  gap: var(--dq-space-3);
}

/* ==========================================================================
   Alerts & Toasts
   ========================================================================== */

.dq-alert {
  position: relative;
  padding: var(--dq-space-4) var(--dq-space-6);
  margin-bottom: var(--dq-space-6);
  border: 1px solid transparent;
  border-radius: var(--dq-radius);
}

.dq-alert-primary {
  color: #084298;
  background-color: #cff4fc;
  border-color: #b6effb;
}

.dq-alert-secondary {
  color: #41464b;
  background-color: #e2e3e5;
  border-color: #d3d6d8;
}

.dq-alert-success {
  color: #0f5132;
  background-color: #d1e7dd;
  border-color: #badbcc;
}

.dq-alert-danger {
  color: #842029;
  background-color: #f8d7da;
  border-color: #f5c2c7;
}

.dq-alert-warning {
  color: #664d03;
  background-color: #fff3cd;
  border-color: #ffecb5;
}

.dq-alert-info {
  color: #055160;
  background-color: #cff4fc;
  border-color: #b6effb;
}

.dq-alert-light {
  color: #636464;
  background-color: #fefefe;
  border-color: #fdfdfe;
}

.dq-alert-dark {
  color: #141619;
  background-color: #d3d3d4;
  border-color: #bcbebf;
}

/* ==========================================================================
   Badges
   ========================================================================== */

.dq-badge {
  display: inline-block;
  padding: var(--dq-space-1) var(--dq-space-3);
  font-size: var(--dq-font-size-sm);
  font-weight: var(--dq-font-weight-medium);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--dq-radius-full);
}

/* ==========================================================================
   Consistent Topic and Exam Badge System
   ========================================================================== */

/* Exam Type Badges - Preserve specific colors and emojis */
.exam-type-badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid;
  /* Border color and background will be set via inline style to preserve exam type colors */
  /* Force dark text for WCAG AA contrast — exam identity still shows via border + bg tint.
     !important overrides the inline color: X style set per-exam (light exam colors like #ff8fe7
     produced 1.86:1 contrast on the 20%-alpha background). */
  color: var(--dq-text) !important;
}

.exam-badge-emoji {
  margin-right: 0.25em;
}

/* Topic Badges - Consistent lighter grey styling */
.topic-badge {
  display: inline-block;
  padding: var(--dq-space-1) var(--dq-space-2);
  font-size: 0.7rem; /* Smaller text for topics */
  font-weight: var(--dq-font-weight-normal);
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--dq-radius-sm);
  background-color: var(--dq-gray-400); /* Lighter grey than #6c757d */
  color: white;
  margin-right: var(--dq-space-1);
  margin-bottom: var(--dq-space-1);
  /* Ensures text is never truncated */
  overflow: visible;
  text-overflow: unset;
}

/* Topic badge hover state for better UX when clickable */
.topic-badge:hover {
  background-color: var(--dq-gray-500);
  transition: background-color var(--dq-transition-fast);
}

/* Badge container for proper spacing and wrapping */
.badge-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--dq-space-1);
  align-items: flex-start;
}

/* Responsive adjustments for mobile */
@media (max-width: 470px) {
  .exam-type-badge {
    font-size: var(--dq-font-size-xs);
    padding: 2px var(--dq-space-1);
    border-radius: 2px;
  }

  /* Hide emoji on mobile to save space */
  .exam-badge-emoji {
    display: none;
  }

  .topic-badge {
    font-size: 0.65rem;
    padding: 2px var(--dq-space-1);
  }
}

/* Toast */
.dq-toast {
  position: fixed;
  top: var(--dq-space-6);
  right: var(--dq-space-6);
  z-index: var(--dq-z-toast);
  max-width: 350px;
  background-color: var(--dq-white);
  border: 1px solid var(--dq-gray-200);
  border-radius: var(--dq-radius-lg);
  box-shadow: var(--dq-shadow-lg);
  animation: dq-toast-slide-in 0.3s ease-out;
}

@keyframes dq-toast-slide-in {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.dq-toast-header {
  display: flex;
  align-items: center;
  padding: var(--dq-space-4) var(--dq-space-6);
  border-bottom: 1px solid var(--dq-gray-200);
  border-top-left-radius: calc(var(--dq-radius-lg) - 1px);
  border-top-right-radius: calc(var(--dq-radius-lg) - 1px);
}

.dq-toast-body {
  padding: var(--dq-space-4) var(--dq-space-6);
}

/* ==========================================================================
   Loading States
   ========================================================================== */

.dq-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  border: 2.5px solid rgba(0, 0, 0, 0.12);
  border-radius: 50%;
  border-top-color: currentColor;
  animation: dq-spin 0.7s linear infinite;
}

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

.dq-spinner-sm {
  width: 0.8rem;
  height: 0.8rem;
  border-width: 2px;
}

.dq-spinner-lg {
  width: 1.5rem;
  height: 1.5rem;
  border-width: 3px;
}

/* Light track for spinners on dark backgrounds (blue buttons, etc.) */
.dq-spinner-light {
  border-color: rgba(255, 255, 255, 0.3);
  border-top-color: currentColor;
}


/* Swap icon for spinner when button is in htmx request state */
.htmx-request .btn-icon,
.htmx-request.btn-icon-swap .btn-icon { display: none !important; }
.btn-spinner { display: none !important; }
.htmx-request .btn-spinner,
.htmx-request.btn-icon-swap .btn-spinner { display: inline-block !important; }

.dq-loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

/* ==========================================================================
   HTMX Specific Styles
   ========================================================================== */

/* Loading indicators */
.htmx-indicator {
  opacity: 0;
  transition: opacity var(--dq-transition-normal);
}

.htmx-request .htmx-indicator {
  opacity: 1;
}

.htmx-request.htmx-indicator {
  opacity: 1;
}

/* Swapping animations */
.htmx-swapping {
  opacity: 0;
  transition: opacity var(--dq-transition-fast);
}

/* Disabled states during requests */
.htmx-request {
  pointer-events: none;
  opacity: 0.7;
}

.htmx-request * {
  pointer-events: none;
}

/* Buttons disabled by hx-disable-elt get a gentle pulse */
button[disabled].htmx-disabled-elt {
  opacity: 0.7;
  cursor: not-allowed;
  pointer-events: none;
}

/* Progress bar for HTMX requests */
.htmx-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--dq-primary);
  z-index: var(--dq-z-fixed);
  transition: width var(--dq-transition-normal);
}

.htmx-request .htmx-progress {
  width: 100%;
}

/* ==========================================================================
   Global Image Sizing System - Consistent across application
   ========================================================================== */

/* Base image styles - ensure all images respect container bounds */
img {
  max-width: 100% !important;
  height: auto !important;
  box-sizing: border-box;
}

/* Rich text image sizing classes - used in Quill editors and quiz content */
.dq-question-text img,
.dq-explanation-content img,
.dq-extension-content img,
.option-text img,
.ql-editor img,
.dq-form-group img {
  border-radius: var(--dq-radius-sm);
  box-shadow: var(--dq-shadow-sm);
  margin: var(--dq-space-2) 0;
  display: block;
  max-width: 100% !important; /* Never exceed container width */
  height: auto !important;
  box-sizing: border-box;
  cursor: zoom-in; /* Visual cue for clickable images */
  transition: var(--dq-transition-normal);
}

/* Image hover effect for zoom indication */
.dq-question-text img:hover,
.dq-explanation-content img:hover,
.dq-extension-content img:hover,
.option-text img:hover {
  box-shadow: var(--dq-shadow-md);
  transform: translateY(-1px);
}

/* Image size classes - respect both allocated size and container bounds */
.dq-question-text img.image-small,
.dq-explanation-content img.image-small,
.dq-extension-content img.image-small,
.option-text img.image-small,
.ql-editor img.image-small,
.dq-form-group img.image-small {
  max-width: min(200px, 100%) !important;
}

.dq-question-text img.image-medium,
.dq-explanation-content img.image-medium,
.dq-extension-content img.image-medium,
.option-text img.image-medium,
.ql-editor img.image-medium,
.dq-form-group img.image-medium {
  max-width: min(400px, 100%) !important;
}

.dq-question-text img.image-large,
.dq-explanation-content img.image-large,
.dq-extension-content img.image-large,
.option-text img.image-large,
.ql-editor img.image-large,
.dq-form-group img.image-large {
  max-width: min(600px, 100%) !important;
}

.dq-question-text img.image-full,
.dq-explanation-content img.image-full,
.dq-extension-content img.image-full,
.option-text img.image-full,
.ql-editor img.image-full,
.dq-form-group img.image-full {
  max-width: 100% !important;
  width: 100% !important;
}

/* Container overflow protection */
.dq-question-card,
.quill-editor,
.dq-modal-content {
  overflow-x: auto; /* Handle any potential overflow gracefully */
}


/* Fix for pulsing blue gradient issue in Quill editors */
.ql-editor:focus,
.ql-container.ql-snow:focus-within,
.quill-editor:focus-within {
  outline: none !important;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25) !important;
  border-color: #007bff !important;
  animation: none !important;
  background: white !important;
  background-image: none !important;
}

/* Override any animations or background effects */
.ql-editor,
.ql-container,
.quill-editor,
.adaptive-editor,
.ql-editor *,
.ql-container *,
.quill-editor *,
.adaptive-editor * {
  animation: none !important;
  background-image: none !important;
}

/* Ensure clean editor appearance */
.quill-editor .ql-editor {
  animation: none !important;
  background: white !important;
  background-image: none !important;
}

/* Mobile responsive adjustments for images */
@media (max-width: 768px) {
  .dq-question-text img.image-large,
  .dq-explanation-content img.image-large,
  .dq-extension-content img.image-large,
  .option-text img.image-large,
  .ql-editor img.image-large,
  .dq-form-group img.image-large {
    max-width: min(400px, 100%) !important; /* Cap large images at medium size on mobile */
  }

  .dq-question-text img.image-medium,
  .dq-explanation-content img.image-medium,
  .dq-extension-content img.image-medium,
  .option-text img.image-medium,
  .ql-editor img.image-medium,
  .dq-form-group img.image-medium {
    max-width: min(300px, 100%) !important; /* Slightly smaller medium on mobile */
  }
}

@media (max-width: 480px) {
  .dq-question-text img.image-large,
  .dq-explanation-content img.image-large,
  .dq-extension-content img.image-large,
  .option-text img.image-large,
  .ql-editor img.image-large,
  .dq-form-group img.image-large {
    max-width: 100% !important; /* All large images become full width on small screens */
  }

  .dq-question-text img.image-medium,
  .dq-explanation-content img.image-medium,
  .dq-extension-content img.image-medium,
  .option-text img.image-medium,
  .ql-editor img.image-medium,
  .dq-form-group img.image-medium {
    max-width: 100% !important; /* All medium images become full width on small screens */
  }
}

/* ==========================================================================
   Image Zoom Modal Styling
   ========================================================================== */

/* Clean image zoom modal styling */
#imageZoomModal {
  z-index: 2000;
}

#imageZoomModal .modal-backdrop {
  background-color: rgba(0, 0, 0, 0.85);
}

#imageZoomModal .modal-dialog {
  background: transparent;
  border: none;
  box-shadow: none;
  margin: 0;
  max-width: none;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#imageZoomModal .modal-dialog > div {
  pointer-events: auto;
}

#imageZoomModal #zoomedImage {
  border-radius: var(--dq-radius-md);
  transition: all var(--dq-transition-normal);
  animation: zoomImageIn 0.3s ease-out;
}

/* Transparent close button styling */
#imageZoomModal button[data-bs-dismiss="modal"] {
  transition: all var(--dq-transition-fast);
  background: transparent !important;
  border: none !important;
  font-weight: normal;
  text-shadow: 0 0 4px rgba(0,0,0,0.8);
}

#imageZoomModal button[data-bs-dismiss="modal"]:hover {
  background: transparent !important;
  color: white !important;
  text-shadow: 0 0 6px rgba(0,0,0,1);
}

#imageZoomModal button[data-bs-dismiss="modal"]:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
}

/* Smooth image zoom-in animation */
@keyframes zoomImageIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Mobile responsive zoom modal */
@media (max-width: 768px) {
  #imageZoomModal #zoomedImage {
    max-height: 85vh !important;
    max-width: 95vw !important;
  }

  #imageZoomModal button[data-bs-dismiss="modal"] {
    width: 40px !important;
    height: 40px !important;
    top: 15px !important;
    right: 15px !important;
    font-size: 28px !important;
    text-shadow: 0 0 6px rgba(0,0,0,1) !important;
  }
}


/* ==========================================================================
   Responsive Design (non-quiz)
   ========================================================================== */

@media (max-width: 768px) {
  .dq-modal-dialog {
    margin: var(--dq-space-4);
    max-width: none;
  }

  .dq-toast {
    top: var(--dq-space-4);
    right: var(--dq-space-4);
    left: var(--dq-space-4);
    max-width: none;
  }
}

@media (max-width: 576px) {
  .dq-btn {
    padding: var(--dq-space-2) var(--dq-space-4);
    font-size: var(--dq-font-size-sm);
  }

  .dq-card-body {
    padding: var(--dq-space-4);
  }

  .dq-modal-body {
    padding: var(--dq-space-4);
  }
}


/* ==========================================================================
   Problem Report Button Styling
   ========================================================================== */

.problem-report-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
  padding: 0.75rem 0;
  position: relative;
}

.problem-report-container.modal-bottom {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--dq-gray-200);
}

.problem-report-btn {
  background: transparent;
  border: 1px solid var(--dq-gray-300);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dq-gray-500);
  cursor: pointer;
  transition: all var(--dq-transition-normal);
  font-size: 16px;
  position: relative;
  overflow: hidden;
}

.problem-report-btn:hover {
  background: var(--dq-warning-50);
  border-color: var(--dq-warning);
  color: var(--dq-warning-dark);
  transform: translateY(-2px);
  box-shadow: var(--dq-shadow-md);
}

.problem-report-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(252, 186, 4, 0.2);
  border-color: var(--dq-warning);
}

.problem-report-btn:active {
  transform: translateY(0);
  box-shadow: var(--dq-shadow-sm);
}

/* Subtle pulse animation for visibility */
@keyframes problem-report-pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.problem-report-btn {
  animation: problem-report-pulse 3s ease-in-out infinite;
}

.problem-report-btn:hover {
  animation: none;
  opacity: 1;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .problem-report-container {
    margin-top: 1.5rem;
    padding: 0.5rem 0;
  }

  .problem-report-btn {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  /* Mobile layout for action buttons with problem report in center */
  .mt-6 .problem-report-btn {
    margin: 0 0.5rem;
    flex-shrink: 0;
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .problem-report-btn {
    animation: none;
    transition: none;
  }

  .problem-report-btn:hover {
    transform: none;
  }

  .problem-report-btn:active {
    transform: none;
  }
}

/* ==========================================================================
   AI Assistant Styles - iPhone Chat Interface
   ========================================================================== */

/* AI Assistant Section Container */
.ai-assistant-section {
  margin-top: 0.5rem;
  padding-top: 0;
}

.ai-assistant-section-modal {
  margin-top: 1.5rem;
  padding-top: 1rem;
}

/* AI Assistant Divider */
.ai-assistant-divider {
  border: none;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--dq-gray-300), transparent);
  margin: 0.75rem 0 0.5rem 0;
}

/* AI Query Form - Inline Submit Button */
.ai-query-form {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.ai-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.ai-input {
  flex: 1;
  border: 2px solid var(--dq-gray-300);
  border-radius: 1.5rem;
  padding: 0.75rem 3.5rem 0.75rem 1.25rem;
  font-size: 0.95rem;
  background-color: white;
  transition: all 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.ai-input:focus {
  background-color: white;
  border-color: var(--dq-primary);
  box-shadow: 0 2px 6px rgba(51, 102, 153, 0.15);
  outline: none;
}

.ai-input::placeholder {
  color: var(--dq-gray-400);
  font-style: italic;
}

.ai-submit-btn {
  position: absolute;
  right: 1rem;
  background: none;
  border: none;
  color: var(--dq-primary);
  padding: 0;
  opacity: 0.3;
  transition: all 0.2s ease;
  cursor: not-allowed;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-submit-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  color: var(--dq-gray-400);
}

.ai-submit-btn.active {
  opacity: 1;
  cursor: pointer;
  color: var(--dq-primary);
}

.ai-submit-btn.active:hover {
  color: var(--dq-primary-dark);
  transform: scale(1.1);
}

.ai-submit-btn i {
  font-size: 1.1rem;
}

/* Loading Icon - Replaces Submit Button */
.ai-loading-icon {
  position: absolute;
  right: 1rem;
  color: var(--dq-primary);
  display: none;
  align-items: center;
  justify-content: center;
}

.ai-loading-icon .spinner-border-sm {
  width: 1rem;
  height: 1rem;
  border-width: 0.15em;
  color: var(--dq-primary);
}

/* Loading text below input */
.ai-loading-text {
  margin-top: 0.5rem;
  text-align: center;
  opacity: 0.7;
}

/* AI Conversation Container - iPhone Style */
.ai-conversation {
  max-height: 600px;
  overflow-y: auto;
  padding: 0;
  margin-bottom: 0;
  min-height: 50px;
}

.ai-conversation::-webkit-scrollbar {
  width: 4px;
}

.ai-conversation::-webkit-scrollbar-track {
  background: transparent;
}

.ai-conversation::-webkit-scrollbar-thumb {
  background: var(--dq-gray-300);
  border-radius: 2px;
}

/* AI Message Pair */
.ai-message-pair {
  margin-bottom: 0.75rem;
  animation: fadeInUp 0.3s ease-out;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Bubble Containers */
.ai-bubble-container {
  display: flex;
  margin-bottom: 0.5rem;
  clear: both;
}

.ai-bubble-left {
  justify-content: flex-start;
  padding-right: 15%;
}

.ai-bubble-right {
  justify-content: flex-end;
  padding-left: 15%;
}

/* Chat Bubbles - iPhone Style */
.ai-bubble {
  padding: 0.75rem 1rem;
  border-radius: 1.125rem;
  max-width: 100%;
  position: relative;
  word-wrap: break-word;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* User Bubble - Left, Grey */
.ai-bubble-user {
  background-color: var(--dq-gray-200);
  color: var(--dq-gray-900);
  border-bottom-left-radius: 0.25rem;
}

/* AI Bubble - Right, White */
.ai-bubble-assistant {
  background-color: white;
  color: var(--dq-gray-900);
  border: 1px solid var(--dq-gray-200);
  border-bottom-right-radius: 0.25rem;
}

.ai-bubble-content {
  font-size: 0.95rem;
  line-height: 1.5;
}

.ai-bubble-content p {
  margin-bottom: 0.5rem;
}

.ai-bubble-content p:last-child {
  margin-bottom: 0;
}

/* Lightbulb Button - Top Right Corner of AI Bubble */
.ai-lightbulb-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: none;
  border: none;
  padding: 0.25rem;
  color: var(--dq-warning);
  opacity: 0.6;
  transition: all 0.2s ease;
  cursor: pointer;
  font-size: 1rem;
  z-index: 1;
}

.ai-lightbulb-btn:hover {
  opacity: 1;
  transform: scale(1.15);
  color: var(--dq-warning-dark);
}

.ai-save-feedback {
  margin-top: 0.5rem;
  padding: 0.25rem 0.5rem;
  background-color: var(--dq-secondary-50);
  border-radius: 0.25rem;
  font-size: 0.85rem;
}

/* Error Messages */
.ai-message-error {
  background-color: var(--dq-danger-50);
  border: 1px solid var(--dq-danger);
  border-radius: 0.5rem;
  padding: 0.75rem;
  margin-bottom: 0.75rem;
}

/* Small message variants for modal (keep for backwards compatibility) */
.ai-message-user-small,
.ai-message-assistant-small {
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.ai-message-user-small {
  background-color: var(--dq-gray-200);
  color: var(--dq-gray-900);
}

.ai-message-assistant-small {
  background-color: white;
  border: 1px solid var(--dq-gray-200);
  color: var(--dq-gray-900);
}

/* AI Disclaimer - Centered Below Last Response */
.ai-disclaimer {
  padding: 0.5rem 0.75rem;
  background-color: var(--dq-warning-50);
  border-radius: 0.5rem;
  border: 1px solid var(--dq-warning);
  opacity: 0.85;
  text-align: center;
  margin: 0 auto;
  max-width: 85%;
}

.ai-disclaimer i {
  color: var(--dq-warning-dark);
}

/* AI Summary Section (Results Page) */
.ai-summary-section {
  background: linear-gradient(135deg, var(--dq-accent-50), var(--dq-primary-50));
  border: 1px solid var(--dq-gray-200);
}

.ai-summary-section h6 {
  color: var(--dq-primary);
  font-weight: 600;
}

.ai-learning-points {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 0;
}

.ai-learning-points li {
  padding: 0.25rem 0;
  color: var(--dq-gray-800);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  .ai-assistant-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
  }

  .ai-input {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: 0.65rem 3rem 0.65rem 1rem;
  }

  .ai-submit-btn,
  .ai-loading-icon {
    right: 0.75rem;
  }

  .ai-submit-btn i {
    font-size: 1rem;
  }

  .ai-bubble-left {
    padding-right: 10%;
  }

  .ai-bubble-right {
    padding-left: 10%;
  }

  .ai-bubble {
    padding: 0.65rem 0.85rem;
    font-size: 0.9rem;
  }


  .ai-conversation {
    max-height: 400px;
  }

  .ai-disclaimer {
    max-width: 95%;
    font-size: 0.85rem;
  }

  .ai-summary-section {
    padding: 1rem !important;
  }

  .ai-learning-points li {
    font-size: 0.9rem;
  }
}

/* Tablet Adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
  .ai-conversation {
    max-height: 500px;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .ai-message-pair {
    animation: none;
  }

  .ai-lightbulb-btn:hover {
    transform: none;
  }

  .ai-submit-btn.active:hover {
    transform: scale(1);
  }
}

/* Print Styles */
@media print {
  .ai-assistant-section,
  .ai-query-form,
  .ai-disclaimer {
    display: none;
  }

  .ai-summary-section {
    break-inside: avoid;
  }
}