/* Mobile-specific styles for Town Builder */
/* Responsive design for mobile phones and tablets */

/*
 * NOTE: This file uses !important flags in several places to override:
 * 1. Bootstrap's default styles which have high specificity
 * 2. Inline styles set by JavaScript in index.html
 * 3. Styles from desktop-first CSS that conflict with mobile layout
 * These are intentional and necessary for mobile responsiveness.
 */

/* ============================================
   CSS Variables for Mobile
   ============================================ */
:root {
  --fab-size: 56px;
  --fab-margin: 20px;
  --bottom-bar-height: 60px;
  --bottom-sheet-peek: 60px;
  --mobile-toolbar-height: 70vh;
  --touch-target-min: 44px;
  --mobile-padding: 12px;
  --safe-area-inset-top: env(safe-area-inset-top, 0px);
  --safe-area-inset-right: env(safe-area-inset-right, 0px);
  --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-inset-left: env(safe-area-inset-left, 0px);
}

/* ============================================
   Base Mobile Styles (up to 768px)
   ============================================ */
@media (max-width: 768px) {
  /* Body adjustments */
  body {
    overscroll-behavior: none;
    touch-action: pan-x pan-y;
    -webkit-user-select: none;
    user-select: none;
  }

  /* Prevent zoom on input focus (iOS) */
  input, select, textarea {
    font-size: 16px !important;
  }

  /* ============================================
     Toolbar as Bottom Sheet
     ============================================ */
  #toolbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    width: 100%;
    max-width: 100%;
    height: var(--mobile-toolbar-height);
    max-height: var(--mobile-toolbar-height);
    transform: translateY(calc(100% - var(--bottom-sheet-peek)));
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1500;
    border-radius: 16px 16px 0 0;
    padding-bottom: var(--safe-area-inset-bottom);
  }

  #toolbar.open {
    transform: translateY(0);
  }

  /* Drag handle for bottom sheet */
  #toolbar::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 5px;
    background: var(--bs-secondary);
    border-radius: 2.5px;
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
  }

  /* Drag zone for bottom sheet gestures */
  .toolbar-drag-zone {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: var(--bottom-sheet-peek);
    z-index: 1;
    touch-action: pan-y; /* Allow dragging gestures */
    -webkit-user-select: none;
    user-select: none;
    cursor: grab;
  }

  .toolbar-drag-zone:active {
    cursor: grabbing !important;
  }

  #toolbar .card-body {
    padding-top: 24px;
    height: 100%;
    max-height: 100%;
    display: flex;
    flex-direction: column;
    overflow: visible; /* Allow model-container to scroll independently */
  }

  /* Make the title area clearly draggable */
  #toolbar .card-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
  }

  #toolbar .card-title:active {
    cursor: grabbing;
  }

  /* ============================================
     Mode Buttons - Larger Touch Targets
     ============================================ */
  .mode-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }

  .mode-button {
    height: 48px;
    min-height: var(--touch-target-min);
    font-size: 16px;
    padding: 8px 12px;
    touch-action: manipulation; /* Prevent double-tap zoom */
  }

  .mode-button i {
    font-size: 1.2rem;
  }

  /* ============================================
     Model Container
     ============================================ */
  #model-container {
    flex: 1 1 auto;
    overflow-y: auto !important;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    min-height: 150px !important; /* Ensure models list is always visible */
    max-height: 40vh !important; /* Limit height so bottom section is visible */
    touch-action: pan-y; /* Allow vertical scrolling */
    overscroll-behavior: contain; /* Prevent scroll chaining */
  }

  .model-item {
    min-height: var(--touch-target-min);
    padding: 12px !important;
    font-size: 16px;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(0, 123, 255, 0.3);
    /* touch-action inherited from parent #model-container (pan-y) */
  }

  .model-item:active {
    background-color: var(--bs-primary) !important;
    color: white !important;
  }

  .model-item i {
    font-size: 1.3rem;
  }

  /* ============================================
     Navigation Bar
     ============================================ */
  .navbar {
    padding-left: var(--safe-area-inset-left);
    padding-right: var(--safe-area-inset-right);
  }

  .navbar-brand {
    font-size: 1rem;
  }

  /* ============================================
     Town Name - Smaller and Top
     ============================================ */
  #town-name-container {
    top: 60px !important;
    left: 50% !important;
  }

  #town-name-display {
    font-size: 1rem !important;
    padding: 8px 16px !important;
  }

  /* ============================================
     Theme Toggle - Positioned for Mobile
     ============================================ */
  #theme-toggle-container {
    top: 60px !important;
    right: 10px !important;
  }

  #themeToggle i {
    font-size: 1.5rem !important;
  }

  /* ============================================
     User List - Hidden on Mobile
     ============================================ */
  #user-list {
    display: none;
  }

  /* ============================================
     Context Help - Hidden on Mobile
     ============================================ */
  #context-help {
    display: none !important;
  }

  /* ============================================
     Category Status Legend - Hidden on Mobile
     ============================================ */
  #category-status-legend {
    display: none !important;
  }

  /* ============================================
     Exit Driving Button - Larger
     ============================================ */
  #exit-driving-btn {
    top: 60px !important;
    right: 10px !important;
    z-index: 2002;
    min-height: var(--touch-target-min);
    font-size: 16px;
    padding: 12px 20px;
  }

  /* ============================================
     Joystick - Better Positioning
     ============================================ */
  #joystick-container {
    bottom: calc(80px + var(--safe-area-inset-bottom)) !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
  }

  #joystick-base {
    width: 140px !important;
    height: 140px !important;
  }

  #joystick-stick {
    width: 70px !important;
    height: 70px !important;
    left: 35px !important;
    top: 35px !important;
  }

  /* ============================================
     Toolbar Bottom Section
     ============================================ */
  .toolbar-bottom-section button,
  .toolbar-bottom-section .btn {
    min-height: var(--touch-target-min);
    font-size: 16px;
  }

  /* ============================================
     Color Pickers
     ============================================ */
  #skyColorPicker,
  #groundColorPicker {
    height: var(--touch-target-min);
  }
}

/* ============================================
   FAB (Floating Action Button)
   ============================================ */
.fab {
  position: fixed;
  bottom: var(--fab-margin);
  right: var(--fab-margin);
  width: var(--fab-size);
  height: var(--fab-size);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1600;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  border: none;
  transition: all 0.3s ease;
  cursor: pointer;
  padding-bottom: var(--safe-area-inset-bottom);
}

.fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.fab:active {
  transform: scale(0.95);
}

.fab i {
  font-size: 24px;
}

/* Hide FAB on desktop */
@media (min-width: 769px) {
  .fab {
    display: none;
  }
}

/* ============================================
   Bottom Action Bar
   ============================================ */
.bottom-action-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--bottom-bar-height) + var(--safe-area-inset-bottom));
  background: var(--bs-body-bg);
  border-top: 1px solid var(--bs-border-color);
  display: none;
  justify-content: space-around;
  align-items: center;
  padding: 8px;
  padding-bottom: calc(8px + var(--safe-area-inset-bottom));
  z-index: 1400;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .bottom-action-bar {
    display: flex;
  }
}

.bottom-action-bar .btn {
  flex: 1;
  margin: 0 4px;
  min-height: var(--touch-target-min);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4px 8px;
  font-size: 12px;
  border-radius: 8px;
}

.bottom-action-bar .btn i {
  font-size: 20px;
  margin-bottom: 2px;
}

/* ============================================
   Backdrop Overlay
   ============================================ */
.mobile-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1400;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================
   Gesture Tutorial Overlay
   ============================================ */
.tutorial-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding: 20px;
  padding-top: calc(20px + var(--safe-area-inset-top));
  padding-bottom: calc(20px + var(--safe-area-inset-bottom));
  color: white;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.tutorial-content {
  max-width: 400px;
  width: 100%;
  text-align: center;
  margin: auto 0;
  flex-shrink: 0;
}

.tutorial-title {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.tutorial-subtitle {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

.tutorial-steps {
  margin-bottom: 2rem;
}

.tutorial-step {
  margin: 1.5rem 0;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
}

.tutorial-step-icon {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.tutorial-step-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.tutorial-step-description {
  font-size: 0.9rem;
  opacity: 0.8;
}

.tutorial-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.tutorial-buttons .btn {
  min-width: 120px;
  min-height: var(--touch-target-min);
}

/* ============================================
   Mobile Settings Panel
   ============================================ */
.mobile-settings {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bs-body-bg);
  z-index: 2500;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 20px;
  padding-top: calc(20px + var(--safe-area-inset-top));
  padding-bottom: calc(20px + var(--safe-area-inset-bottom));
}

.mobile-settings.show {
  transform: translateX(0);
}

.mobile-settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--bs-border-color);
}

.mobile-settings-title {
  font-size: 1.5rem;
  font-weight: bold;
}

.mobile-settings-close {
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
}

.mobile-setting-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--bs-border-color);
}

.mobile-setting-label {
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.mobile-setting-description {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-bottom: 0.5rem;
}

/* ============================================
   Touch Feedback
   ============================================ */
.touch-active {
  opacity: 0.7;
  transform: scale(0.98);
}

/* ============================================
   Camera Mode Indicator
   ============================================ */
.camera-mode-indicator {
  position: fixed;
  top: calc(70px + var(--safe-area-inset-top));
  left: 50%;
  transform: translateX(-50%);
  z-index: 1500;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.camera-mode-indicator.show {
  opacity: 1;
}

/* ============================================
   Mobile Portrait Specific (up to 576px)
   ============================================ */
@media (max-width: 576px) {
  :root {
    --mobile-toolbar-height: 75vh;
    --bottom-sheet-peek: 50px;
  }

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

  .mode-buttons {
    gap: 0.4rem;
  }

  .mode-button {
    font-size: 14px;
    padding: 6px 10px;
  }

  .model-item {
    padding: 10px !important;
    font-size: 15px;
  }
}

/* ============================================
   Tablet Landscape (769px - 992px)
   ============================================ */
@media (min-width: 769px) and (max-width: 992px) {
  #toolbar {
    width: 320px;
    height: auto;
    max-height: calc(100vh - 76px);
    transform: none;
  }

  #toolbar::before {
    display: none;
  }

  .fab {
    display: none;
  }
}

/* ============================================
   Landscape Mode Adjustments
   ============================================ */
@media (max-width: 768px) and (orientation: landscape) {
  :root {
    --mobile-toolbar-height: 90vh;
  }

  #toolbar {
    height: 90vh;
    max-height: 90vh;
  }

  .mode-buttons {
    grid-template-columns: repeat(4, 1fr);
  }

  #joystick-container {
    bottom: calc(40px + var(--safe-area-inset-bottom)) !important;
  }
}

/* ============================================
   High DPI / Retina Displays
   ============================================ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .fab {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  }
}

/* ============================================
   Dark Mode Adjustments
   ============================================ */
[data-bs-theme="dark"] .mobile-backdrop {
  background: rgba(0, 0, 0, 0.7);
}

[data-bs-theme="dark"] .tutorial-step {
  background: rgba(255, 255, 255, 0.05);
}

[data-bs-theme="dark"] #toolbar::before {
  background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Animations
   ============================================ */
@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.8);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* ============================================
   Accessibility
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   iOS Specific Fixes
   ============================================ */
@supports (-webkit-touch-callout: none) {
  /* iOS Safari specific styles */
  body {
    -webkit-tap-highlight-color: transparent;
  }

  input, textarea, select {
    -webkit-appearance: none;
    border-radius: 0;
  }
}