/**
 * Mobile & Responsive Styles
 * Media queries for tablet and mobile devices
 */

/* ===== Tablet Portrait (768px - 991px) ===== */
@media (max-width: 991px) {
  .app-main {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    gap: var(--spacing-md);
  }

  .control-panel {
    grid-row: 1;
    max-height: 300px;
  }

  .canvas-area {
    grid-row: 2;
    min-height: 400px;
  }

  .results-panel {
    grid-row: 3;
    max-height: 250px;
  }

  .history-panel {
    width: 100%;
    max-width: 400px;
  }
}

/* ===== Mobile Landscape & Small Tablet (max-width: 767px) ===== */
@media (max-width: 767px) {
  /* Header adjustments */
  .app-header {
    padding: var(--spacing-sm);
    height: 56px;
  }

  .header-center {
    flex: 1;
    max-width: none;
  }

  .title-full {
    display: none;
  }

  .title-short {
    display: inline;
  }

  .btn-icon {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }

  /* Project selector */
  .project-selector {
    max-width: none;
  }

  .btn-project {
    font-size: var(--font-size-sm);
    padding: 6px 10px;
  }

  /* Main layout - single column */
  .app-main {
    grid-template-columns: 1fr;
    grid-template-rows: auto 1fr auto;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
  }

  /* Control panel - collapsible */
  .control-panel {
    max-height: none;
  }

  .control-panel.collapsed .panel-body,
  .control-panel.collapsed .panel-footer {
    display: none;
  }

  .control-panel.collapsed {
    max-height: 56px;
  }

  .btn-collapse {
    display: block;
  }

  .btn-collapse.collapsed i {
    transform: rotate(-90deg);
  }

  .panel-header h2 {
    font-size: var(--font-size-base);
  }

  .panel-body,
  .panel-footer {
    padding: var(--spacing-sm);
  }

  /* Canvas area */
  .canvas-area {
    min-height: 60vh;
  }

  .canvas-header h2 {
    font-size: var(--font-size-base);
  }

  #plotCanvas {
    width: 100%;
    height: auto;
  }

  /* Canvas toolbar - adjust for mobile */
  .canvas-toolbar {
    bottom: 12px;
    right: 12px;
    padding: 6px;
  }

  .btn-toolbar {
    width: 44px; /* Larger touch target */
    height: 44px;
    font-size: 18px;
  }

  /* Results panel - sticky footer style */
  .results-panel {
    max-height: 200px;
  }

  /* History panel - full width on mobile */
  .history-panel {
    width: 100%;
    max-width: 100%;
  }

  /* Modals - full screen on mobile */
  .modal-dialog {
    margin: 0;
    max-width: 100%;
    height: 100%;
  }

  .modal-content {
    height: 100%;
    border-radius: 0;
  }

  /* Form controls - larger touch targets */
  .form-control,
  .form-select {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: 12px;
  }

  .btn {
    padding: 12px 16px;
    font-size: var(--font-size-base);
  }

  .btn-sm {
    padding: 8px 12px;
    font-size: var(--font-size-sm);
  }

  /* Coordinate inputs */
  .coordinate-input-group {
    margin-bottom: var(--spacing-sm);
  }

  .input-wrapper .form-control {
    padding: 12px;
    padding-right: 60px;
  }

  /* History list items */
  .history-item {
    padding: var(--spacing-sm);
  }

  .history-body {
    flex-direction: column;
  }

  .history-thumbnail {
    width: 100%;
    height: 120px;
  }

  .history-actions {
    flex-wrap: wrap;
  }

  .history-actions .btn {
    flex: 1;
    min-width: 80px;
  }
}

/* ===== Mobile Portrait (max-width: 575px) ===== */
@media (max-width: 575px) {
  /* Header - compact */
  .app-header {
    padding: var(--spacing-xs) var(--spacing-sm);
    height: 52px;
  }

  .header-left,
  .header-right {
    gap: var(--spacing-xs);
  }

  .app-title {
    font-size: var(--font-size-base);
  }

  /* Hide some header buttons on very small screens */
  .header-right .btn-icon:nth-child(3) {
    display: none; /* Hide help button */
  }

  /* Main content */
  .app-main {
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
  }

  /* Panels */
  .panel-header,
  .panel-footer {
    padding: var(--spacing-sm);
  }

  .panel-body {
    padding: var(--spacing-sm);
  }

  /* Tabs - smaller */
  .nav-tabs .nav-link {
    padding: 8px 12px;
    font-size: var(--font-size-sm);
  }

  /* Canvas */
  .canvas-area {
    min-height: 50vh;
  }

  .canvas-toolbar {
    bottom: 8px;
    right: 8px;
    left: 8px;
    justify-content: space-between;
  }

  .toolbar-group {
    gap: 2px;
  }

  .btn-toolbar {
    width: 40px;
    height: 40px;
  }

  /* Results panel - expandable */
  .results-panel {
    max-height: 150px;
  }

  .results-panel.expanded {
    max-height: 80vh;
  }

  /* Settings sections */
  .settings-section {
    padding: var(--spacing-sm) 0;
  }

  /* Button groups */
  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    border-radius: var(--border-radius-sm) !important;
    margin-bottom: 4px;
  }
}

/* ===== Bottom Sheet for Mobile (optional enhancement) ===== */
@media (max-width: 767px) {
  .control-panel.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    top: auto;
    max-height: 70vh;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(calc(100% - 60px));
    transition: transform var(--transition-normal);
    z-index: var(--z-panel);
  }

  .control-panel.bottom-sheet.expanded {
    transform: translateY(0);
  }

  .control-panel.bottom-sheet .panel-header {
    cursor: pointer;
  }

  .control-panel.bottom-sheet .panel-header::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
  }

  /* Backdrop for bottom sheet */
  .bottom-sheet-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    z-index: calc(var(--z-panel) - 1);
  }

  .bottom-sheet-backdrop.show {
    opacity: 1;
    pointer-events: all;
  }
}

/* ===== Touch-specific enhancements ===== */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets for touch devices */
  .btn-icon,
  .btn-toolbar {
    min-width: 44px;
    min-height: 44px;
  }

  /* Remove hover effects on touch devices */
  .btn-icon:hover,
  .btn-toolbar:hover,
  .history-item:hover {
    background: inherit;
    box-shadow: inherit;
    border-color: inherit;
  }

  /* Active state instead of hover */
  .btn-icon:active,
  .btn-toolbar:active {
    background: var(--border-color);
  }

  .history-item:active {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
  }

  /* Prevent text selection on buttons */
  button {
    -webkit-tap-highlight-color: transparent;
    user-select: none;
  }
}

/* ===== Landscape orientation adjustments ===== */
@media (max-width: 767px) and (orientation: landscape) {
  .app-main {
    grid-template-columns: 300px 1fr;
    grid-template-rows: 1fr auto;
  }

  .control-panel {
    grid-column: 1;
    grid-row: 1 / 3;
    max-height: none;
  }

  .canvas-area {
    grid-column: 2;
    grid-row: 1;
    min-height: auto;
  }

  .results-panel {
    grid-column: 2;
    grid-row: 2;
    max-height: 180px;
  }

  .history-panel {
    top: 0;
    height: 100vh;
  }
}

/* ===== Print styles ===== */
@media print {
  .app-header,
  .control-panel,
  .history-panel,
  .canvas-toolbar,
  .panel-footer,
  .btn-icon,
  button {
    display: none !important;
  }

  .app-main {
    display: block;
  }

  .canvas-area,
  .results-panel {
    border: none;
    box-shadow: none;
    page-break-inside: avoid;
  }

  #plotCanvas {
    max-width: 100%;
    page-break-inside: avoid;
  }
}

/* ===== Loading states ===== */
.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.6;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Swipe gestures (visual feedback) ===== */
.swipe-left {
  animation: swipeLeft 0.3s ease;
}

.swipe-right {
  animation: swipeRight 0.3s ease;
}

@keyframes swipeLeft {
  0% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(-20px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes swipeRight {
  0% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(20px);
  }
  100% {
    transform: translateX(0);
  }
}

/* ===== Notification/Toast styles ===== */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--z-tooltip);
}

@media (max-width: 767px) {
  .toast-container {
    bottom: 80px;
    left: 20px;
    right: 20px;
  }
}

.toast {
  background: var(--dark-color);
  color: white;
  padding: 12px 16px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  margin-bottom: 8px;
  animation: slideInUp 0.3s ease;
}

@keyframes slideInUp {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.toast.toast-success {
  background: var(--success-color);
}

.toast.toast-error {
  background: var(--danger-color);
}

.toast.toast-warning {
  background: var(--warning-color);
  color: var(--dark-color);
}

/* ===== PWA Install prompt ===== */
.pwa-install-prompt {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-panel);
  border-top: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
  z-index: var(--z-panel);
}

.pwa-install-prompt.show {
  transform: translateY(0);
}

.pwa-install-prompt .pwa-icon {
  font-size: 32px;
  color: var(--primary-color);
}

.pwa-install-prompt .pwa-content {
  flex: 1;
}

.pwa-install-prompt .pwa-title {
  font-weight: 600;
  margin: 0;
}

.pwa-install-prompt .pwa-description {
  font-size: var(--font-size-sm);
  color: var(--secondary-color);
  margin: 0;
}