.app {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.view-controls {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  background: #1e293b;
  border-bottom: 2px solid #334155;
}

.view-controls button {
  padding: 0.5rem 1rem;
  border: none;
  background: #334155;
  color: #e2e8f0;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.view-controls button:hover {
  background: #475569;
  transform: translateY(-1px);
}

.view-controls button.active {
  background: #3b82f6;
  color: white;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.app-content {
  flex: 1;
  display: flex;
  overflow: hidden;
}

.app-content.split {
  display: flex;
}

.app-content.split .map-container {
  flex: 1;
  width: 50%;
}

.app-content.split .panel-container {
  flex: 1;
  width: 50%;
}

.app-content.map .panel-container {
  display: none;
}

.app-content.panel .map-container {
  display: none;
}

.map-container {
  position: relative;
  background: #0a0e1a;
}

.panel-container {
  background: #0f172a;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.panel-tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.5rem;
  background: #1e293b;
  border-bottom: 2px solid #334155;
  overflow-x: auto;
  flex-shrink: 0;
}

.panel-tabs button {
  padding: 0.5rem 1rem;
  border: none;
  background: #334155;
  color: #94a3b8;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.panel-tabs button:hover {
  background: #475569;
  color: #e5e7eb;
}

.panel-tabs button.active {
  background: #3b82f6;
  color: white;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
}

.panel-content-wrapper {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #1e293b;
}

::-webkit-scrollbar-thumb {
  background: #475569;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

/* Mobile-Responsive Design */
@media (max-width: 1024px) {
  /* Tablet: Stack vertically */
  .app-content.split {
    flex-direction: column;
  }
  
  .app-content.split .map-container,
  .app-content.split .panel-container {
    width: 100%;
    flex: 1;
  }
  
  .view-controls {
    flex-wrap: wrap;
  }
}

@media (max-width: 768px) {
  /* Mobile: Force single view mode with tabs */
  .view-controls {
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  }
  
  .view-controls button {
    flex: 1;
    min-width: 0;
    padding: 0.75rem 0.5rem;
    font-size: 0.8125rem;
  }
  
  .app-content.split {
    flex-direction: column;
  }
  
  .app-content.split .map-container {
    height: 50vh;
  }
  
  .app-content.split .panel-container {
    height: 50vh;
    overflow-y: auto;
  }
  
  /* Optimize for touch */
  button, .turtle-card, .inventory-slot {
    min-height: 44px; /* iOS minimum touch target */
  }
}

@media (max-width: 480px) {
  /* Small mobile: Optimize spacing */
  .view-controls {
    padding: 0.5rem;
    gap: 0.375rem;
  }
  
  .view-controls button {
    padding: 0.625rem 0.375rem;
    font-size: 0.75rem;
  }
  
  .app-content.split .map-container {
    height: 40vh;
  }
  
  .app-content.split .panel-container {
    height: 60vh;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  /* Increase touch targets */
  button {
    min-height: 48px;
    min-width: 48px;
  }
  
  .turtle-card {
    padding: 1rem;
  }
  
  .inventory-slot {
    min-height: 60px;
    min-width: 60px;
  }
  
  /* Remove hover effects on touch devices */
  button:hover,
  .turtle-card:hover,
  .inventory-slot:hover {
    transform: none;
  }
  
  /* Use active state instead */
  button:active {
    transform: scale(0.95);
  }
}

/* Landscape mobile orientation */
@media (max-width: 896px) and (orientation: landscape) {
  .app-content.split {
    flex-direction: row;
  }
  
  .app-content.split .map-container,
  .app-content.split .panel-container {
    width: 50%;
    height: 100%;
  }
}

/* Dark mode support (respects system preference) */
@media (prefers-color-scheme: dark) {
  /* Already optimized for dark mode */
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .view-controls button {
    border: 2px solid currentColor;
  }
  
  .turtle-card {
    border-width: 3px;
  }
}