/* CityLingo Mobile Responsiveness Patch v2 */

/* Sidebar overlay */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 85;
  animation: fadeIn 0.3s ease-out;
}

/* Sidebar mobile: ensure open state works */
@media (max-width: 1024px) {
  .sidebar {
    transform: translate(-100%);
    pointer-events: none;
    opacity: 0;
    transition: all 0.3s ease;
  }
  .sidebar.open {
    transform: translate(0);
    pointer-events: auto;
    opacity: 1;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.1);
  }
  .main-content {
    margin-left: 0 !important;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 280px;
  }
}

/* Dashboard responsive */
@media (max-width: 768px) {
  .dashboard-page {
    padding: 16px !important;
  }
  .dashboard-welcome {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 20px !important;
  }
  .dashboard-welcome h1 {
    font-size: 20px !important;
  }
  .dashboard-card {
    padding: 24px 16px !important;
    max-width: 100% !important;
  }
  .modules-grid {
    grid-template-columns: 1fr !important;
  }
  .modules-grid-4 {
    grid-template-columns: 1fr 1fr !important;
  }
  .class-badges {
    flex-wrap: wrap;
  }
}

@media (max-width: 480px) {
  .dashboard-page {
    padding: 12px !important;
  }
  .dashboard-welcome {
    padding: 16px !important;
    border-radius: 12px !important;
  }
}

/* Writing pages responsive */
@media (max-width: 768px) {
  .writing-editor-page {
    padding: 12px !important;
  }
  .editor-header {
    flex-direction: column;
    gap: 12px;
    padding: 12px !important;
  }
  .editor-layout {
    flex-direction: column;
  }
  .editor-sidebar {
    width: 100% !important;
    max-height: 300px;
  }
  .writing-drafts-page {
    padding: 12px !important;
  }
  .draft-card .card-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .writing-portfolio-page {
    padding: 12px !important;
  }
  .writing-feedback-page {
    padding: 12px !important;
  }
  .writing-page {
    padding: 12px !important;
  }
  .wp-hero {
    padding: 20px !important;
  }
  .wp-bottom-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Speaking pages responsive */
@media (max-width: 768px) {
  .speaking-page {
    padding: 12px !important;
  }
  .speaking-header {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 16px !important;
  }
  .speaking-title {
    font-size: 22px !important;
    justify-content: center;
  }
  .speaking-chat-page {
    border-radius: 0;
    height: calc(100vh - 56px) !important;
  }
  .chat-input-bar {
    padding: 8px 12px !important;
  }
  .speaking-history-page {
    padding: 12px !important;
  }
  .speaking-analysis-page {
    padding: 12px !important;
  }
  .scenarios-grid {
    grid-template-columns: 1fr !important;
  }
  .stats-preview {
    grid-template-columns: 1fr !important;
  }
}

/* Reading pages responsive */
@media (max-width: 768px) {
  .reading-page {
    padding: 12px !important;
  }
  .reading-library-page {
    padding: 12px !important;
  }
  .articles-grid {
    grid-template-columns: 1fr !important;
  }
  .reading-practice-page {
    padding: 12px !important;
  }
  .reading-practice-layout {
    flex-direction: column;
  }
  .reading-sidebar {
    width: 100% !important;
  }
  .reading-progress-page {
    padding: 12px !important;
  }
  .vocab-assessment-page {
    padding: 12px !important;
  }
  .vocab-learning-page {
    padding: 12px !important;
  }
}

/* Listening pages responsive */
@media (max-width: 768px) {
  .listening-page {
    padding: 12px !important;
  }
  .listening-create-page {
    padding: 12px !important;
  }
  .listening-sort-page {
    padding: 12px !important;
  }
  .listening-history-page {
    padding: 12px !important;
  }
}

/* Classroom pages responsive */
@media (max-width: 768px) {
  .classroom-page {
    padding: 12px !important;
  }
  .my-classes-page {
    padding: 12px !important;
  }
  .join-class-page {
    padding: 12px !important;
  }
}

/* Profile/Analysis pages responsive */
@media (max-width: 768px) {
  .analysis-page {
    padding: 12px !important;
  }
  .analysis-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Auth pages responsive */
@media (max-width: 480px) {
  .auth-content {
    padding: 16px !important;
  }
  .auth-card .card-content {
    padding: 24px 16px !important;
  }
}

/* Welcome / Landing page mobile */
@media (max-width: 640px) {
  .welcome-title {
    font-size: 36px !important;
  }
  .welcome-subtitle-cn {
    font-size: 18px !important;
  }
}

@media (max-width: 480px) {
  .welcome-title {
    font-size: 30px !important;
  }
  .welcome-subtitle-cn {
    font-size: 16px !important;
  }
}

/* General mobile improvements */
@media (max-width: 768px) {
  /* Better touch targets */
  .sidebar-link {
    padding: 12px 14px !important;
    min-height: 44px;
  }
  .system-link {
    padding: 8px 12px !important;
    min-height: 36px;
  }
  .btn, button {
    min-height: 44px;
  }
  /* Prevent horizontal overflow */
  body {
    overflow-x: hidden;
  }
  .main-content {
    overflow-x: hidden;
  }
  /* Better text sizing */
  h1 {
    font-size: 24px !important;
  }
  h2 {
    font-size: 20px !important;
  }
  h3 {
    font-size: 16px !important;
  }
  /* Grid adjustments */
  .grid-3, .grid-4 {
    grid-template-columns: 1fr !important;
  }
  .grid-2 {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 480px) {
  /* Extra small screens */
  .navbar {
    padding: 0 12px !important;
  }
  .navbar-logo-icon {
    width: 32px !important;
    height: 32px !important;
  }
  .main-content {
    padding: 8px !important;
  }
}

/* Mobile back button */
@media (max-width: 768px) {
  .mobile-back-btn {
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.2s;
    flex-shrink: 0;
  }
  .mobile-back-btn:hover {
    background: var(--bg-secondary, rgba(0,0,0,0.05));
  }
}
@media (min-width: 769px) {
  .mobile-back-btn {
    display: none !important;
  }
}

/* Send button fix for xiaoyu chat */
/* Override conflicting send-btn styles from other components */
.xiaoyu-chat .send-btn,
.xiaoyu-container .send-btn,
.xiaoyu-teacher .send-btn {
  width: 56px !important;
  height: 56px !important;
  border: none !important;
  border-radius: 20px !important;
  background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%) !important;
  color: white !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  transition: all 0.3s ease !important;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3) !important;
  flex-shrink: 0 !important;
  padding: 0 !important;
  font-size: 0 !important;
  line-height: 1 !important;
}

.xiaoyu-chat .send-btn:hover:not(:disabled),
.xiaoyu-container .send-btn:hover:not(:disabled),
.xiaoyu-teacher .send-btn:hover:not(:disabled) {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 16px rgba(139, 92, 246, 0.4) !important;
}

.xiaoyu-chat .send-btn:disabled,
.xiaoyu-container .send-btn:disabled,
.xiaoyu-teacher .send-btn:disabled {
  background: #e5e7eb !important;
  color: #9ca3af !important;
  box-shadow: none !important;
  cursor: not-allowed !important;
  transform: none !important;
}

/* Ensure SVG icon renders inside send button */
.send-btn svg {
  display: block !important;
  width: 20px !important;
  height: 20px !important;
}

/* Fallback: if no SVG, show arrow */
.send-btn:not(:has(svg)):not(:has(span)):not(:has(.loading-dots))::after {
  content: "\2191";
  font-size: 20px !important;
  font-weight: bold;
  color: inherit;
}

@media (max-width: 768px) {
  .xiaoyu-chat .send-btn,
  .xiaoyu-container .send-btn,
  .xiaoyu-teacher .send-btn {
    width: 48px !important;
    height: 48px !important;
    border-radius: 16px !important;
  }
}