/* settings.css - Settings Page Styles with Mobile Responsiveness */

/* ============================================================================
   BASE STYLES
   ============================================================================ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family:
    "IBM Plex Sans Arabic",
    "Tajawal",
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Display",
    "Segoe UI",
    Roboto,
    sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  padding: 40px 24px;
  background-color: var(--color-background);
  color: var(--color-text-primary);
}

/* ============================================================================
   SETTINGS PAGE CONTAINER
   ============================================================================ */

.settings-page {
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.settings-header {
  text-align: center;
  margin-bottom: 48px;
  padding: 32px 24px;
  background: var(--color-surface);
  border-radius: 24px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.settings-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-accent);
}

.settings-header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.settings-header p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================================
   SETTINGS FORM
   ============================================================================ */

#settingsForm {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ============================================================================
   SETTINGS CARD
   ============================================================================ */

.settings-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.settings-card:hover {
  box-shadow: var(--shadow-lg);
}

.settings-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.settings-card h2 span {
  font-size: 1.75rem;
}

.profile-hint {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.5;
}

/* ============================================================================
   SETTINGS ROW
   ============================================================================ */

.settings-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.settings-row:last-child {
  margin-bottom: 0;
}

.settings-row label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-primary);
}

.settings-row input,
.settings-row select {
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-background);
  color: var(--color-text-primary);
  transition: all 0.3s ease;
  width: 100%;
}

.settings-row input:focus,
.settings-row select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.settings-row input:hover,
.settings-row select:hover {
  border-color: var(--color-primary);
}

/* ============================================================================
   OPTION CARDS (Radio Buttons)
   ============================================================================ */

.option-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.option-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--color-background);
}

.option-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.option-card.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.option-card input[type="radio"] {
  margin-top: 2px;
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.option-card-content {
  flex: 1;
}

.option-card-title {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.option-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ============================================================================
   COURSE LIST GRID
   ============================================================================ */

.course-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  max-height: 450px;
  overflow-y: auto;
  padding: 4px;
  margin-top: 16px;
}

/* Custom scrollbar */
.course-list-grid::-webkit-scrollbar {
  width: 8px;
}

.course-list-grid::-webkit-scrollbar-track {
  background: var(--color-background, #f5f5f5);
  border-radius: 4px;
}

.course-list-grid::-webkit-scrollbar-thumb {
  background: var(--color-border, #e0e0e0);
  border-radius: 4px;
  transition: background 0.2s;
}

.course-list-grid::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary, #0088cc);
}

/* Firefox scrollbar */
.course-list-grid {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border, #e0e0e0) var(--color-background, #f5f5f5);
}

/* Course items */
.course-item {
  background: var(--color-background, #f5f5f5);
  border: 2px solid var(--color-border, #e0e0e0);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: all 0.25s ease;
  min-height: 80px;
}

.course-item:hover {
  border-color: var(--color-primary, #0088cc);
  box-shadow: 0 4px 12px rgba(0, 136, 204, 0.1);
  background: var(--color-surface, #ffffff);
  transform: translateY(-2px);
}

.course-info {
  flex: 1;
  min-width: 0; /* Allow text truncation */
}

.course-info h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.course-details {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* ============================================================================
   TOGGLE SWITCH (Scoped to course items to avoid conflicts with side-menu.css)
   ============================================================================ */

/* Container for the toggle - scoped to course items */
.course-item .toggle-container {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
  align-self: center;
}

/* Hide the default checkbox */
.course-item .toggle-container input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* The toggle background track */
.course-item .toggle-switch {
  position: relative;
  display: block;
  width: 48px;
  height: 26px;
  border-radius: 100px;
  background: var(--color-border, #ccc);
  transition: background 0.3s ease;
  cursor: pointer;
}

/* The toggle circle/knob */
.course-item .toggle-switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: white;
  border-radius: 50%;
  transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

/* Checked state */
.course-item .toggle-container input[type="checkbox"]:checked + .toggle-switch {
  background: var(--color-primary, #6366f1);
}

.course-item
  .toggle-container
  input[type="checkbox"]:checked
  + .toggle-switch::after {
  left: 25px;
}

/* Focus state for accessibility */
.course-item .toggle-container input[type="checkbox"]:focus + .toggle-switch {
  outline: 2px solid var(--color-primary, #6366f1);
  outline-offset: 2px;
}

/* Disabled state */
.course-item
  .toggle-container
  input[type="checkbox"]:disabled
  + .toggle-switch {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Hover effect */
.course-item .toggle-container:hover .toggle-switch {
  opacity: 0.9;
}

/* ============================================================================
   SAVE BUTTON
   ============================================================================ */

.btn-save {
  padding: 16px 32px;
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  background: var(--gradient-accent);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  margin-top: 24px;
  display: none; /* Hidden by default for auto-save */
}

.btn-save:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

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

.btn-save:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ============================================================================
   SAVE FEEDBACK (Auto-save indicator)
   ============================================================================ */

.save-feedback {
  text-align: center;
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 16px;
  padding: 12px 20px;
  border-radius: 8px;
  transition: all 0.3s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.save-feedback.saving {
  background: var(--color-primary-light);
  color: var(--color-primary);
  animation: pulse 1.5s ease-in-out infinite;
}

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

/* ============================================================================
   MOBILE RESPONSIVE STYLES
   ============================================================================ */

/* Tablet styles (768px and below) */
@media (max-width: 768px) {
  body {
    padding: 24px 16px;
  }

  .settings-page {
    max-width: 100%;
  }

  .settings-header {
    margin-bottom: 32px;
    padding: 24px 20px;
  }

  .settings-header h1 {
    font-size: 2rem;
  }

  .settings-header p {
    font-size: 1rem;
  }

  .settings-card {
    padding: 24px 20px;
  }

  .settings-card h2 {
    font-size: 1.35rem;
  }

  .settings-card h2 span {
    font-size: 1.5rem;
  }

  .profile-hint {
    font-size: 0.9rem;
  }

  .settings-row label {
    font-size: 0.9rem;
  }

  .settings-row input,
  .settings-row select {
    font-size: 0.95rem;
    padding: 12px 14px;
  }

  .option-card {
    padding: 16px;
  }

  .option-card-title {
    font-size: 1rem;
  }

  .option-card-desc {
    font-size: 0.85rem;
  }

  /* Course list - 2 columns on tablet */
  .course-list-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 14px;
  }

  .course-item {
    padding: 14px;
  }

  .course-info h4 {
    font-size: 0.95rem;
  }

  .course-details {
    font-size: 0.8rem;
  }

  .btn-save {
    font-size: 1rem;
    padding: 14px 28px;
  }

  .save-feedback {
    font-size: 0.9rem;
  }
}

/* Mobile styles (640px and below) */
@media (max-width: 640px) {
  html {
    font-size: 15px;
  }

  body {
    padding: 20px 12px;
  }

  .settings-header {
    margin-bottom: 24px;
    padding: 20px 16px;
    border-radius: 16px;
  }

  .settings-header h1 {
    font-size: 1.75rem;
    margin-bottom: 8px;
  }

  .settings-header p {
    font-size: 0.9rem;
    line-height: 1.4;
  }

  #settingsForm {
    gap: 20px;
  }

  .settings-card {
    padding: 20px 16px;
    border-radius: 12px;
  }

  .settings-card h2 {
    font-size: 1.25rem;
    gap: 10px;
    margin-bottom: 6px;
  }

  .settings-card h2 span {
    font-size: 1.35rem;
  }

  .profile-hint {
    font-size: 0.85rem;
    margin-bottom: 20px;
  }

  .settings-row {
    margin-bottom: 16px;
  }

  .settings-row label {
    font-size: 0.85rem;
  }

  .settings-row input,
  .settings-row select {
    font-size: 0.9rem;
    padding: 10px 12px;
  }

  .option-cards {
    gap: 12px;
  }

  .option-card {
    padding: 14px;
    gap: 12px;
  }

  .option-card input[type="radio"] {
    width: 18px;
    height: 18px;
  }

  .option-card-title {
    font-size: 0.95rem;
  }

  .option-card-desc {
    font-size: 0.8rem;
  }

  /* Course list - single column on mobile */
  .course-list-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    max-height: 400px;
  }

  .course-item {
    padding: 14px 12px;
    min-height: auto;
    gap: 12px;
  }

  .course-info h4 {
    font-size: 0.9rem;
  }

  .course-details {
    font-size: 0.75rem;
  }

  /* Keep toggle size consistent on mobile */
  .course-item .toggle-container {
    width: 48px;
    height: 26px;
  }

  .course-item .toggle-switch {
    width: 48px;
    height: 26px;
  }

  .course-item .toggle-switch::after {
    width: 20px;
    height: 20px;
    top: 3px;
    left: 3px;
  }

  .course-item
    .toggle-container
    input[type="checkbox"]:checked
    + .toggle-switch::after {
    left: 25px;
  }

  .btn-save {
    font-size: 0.95rem;
    padding: 14px 24px;
    margin-top: 20px;
  }

  .save-feedback {
    font-size: 0.85rem;
    padding: 10px 16px;
    min-height: 40px;
  }
}

/* Very small screens (380px and below) */
@media (max-width: 380px) {
  html {
    font-size: 14px;
  }

  body {
    padding: 16px 10px;
  }

  .settings-header {
    padding: 16px 12px;
  }

  .settings-header h1 {
    font-size: 1.5rem;
  }

  .settings-header p {
    font-size: 0.85rem;
  }

  .settings-card {
    padding: 16px 12px;
  }

  .settings-card h2 {
    font-size: 1.15rem;
    gap: 8px;
  }

  .settings-card h2 span {
    font-size: 1.25rem;
  }

  .profile-hint {
    font-size: 0.8rem;
  }

  .settings-row label {
    font-size: 0.8rem;
  }

  .settings-row input,
  .settings-row select {
    font-size: 0.85rem;
    padding: 10px;
  }

  .option-card {
    padding: 12px;
    gap: 10px;
  }

  .option-card input[type="radio"] {
    width: 16px;
    height: 16px;
  }

  .option-card-title {
    font-size: 0.9rem;
  }

  .option-card-desc {
    font-size: 0.75rem;
  }

  /* Course list on very small screens */
  .course-list-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    max-height: 350px;
  }

  .course-item {
    padding: 12px 10px;
    gap: 10px;
  }

  .course-info h4 {
    font-size: 0.85rem;
  }

  .course-details {
    font-size: 0.7rem;
  }

  /* Slightly smaller toggle on very small screens */
  .course-item .toggle-container {
    width: 44px;
    height: 24px;
  }

  .course-item .toggle-switch {
    width: 44px;
    height: 24px;
  }

  .course-item .toggle-switch::after {
    width: 18px;
    height: 18px;
    top: 3px;
    left: 3px;
  }

  .course-item
    .toggle-container
    input[type="checkbox"]:checked
    + .toggle-switch::after {
    left: 23px;
  }

  .btn-save {
    font-size: 0.9rem;
    padding: 12px 20px;
  }

  .save-feedback {
    font-size: 0.8rem;
    padding: 8px 12px;
    min-height: 36px;
  }
}

/* ============================================================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================================================ */

/* Focus visible styles for keyboard navigation */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .settings-card,
  .option-card,
  .course-item {
    border-width: 3px;
  }

  .option-card:hover,
  .course-item:hover {
    border-width: 3px;
  }
}