:root {
  --primary: #F59E0B;
  --primary-hover: #D97706;
  --secondary: #FCD34D;
  --accent: #FFFBEB;
  --bg-dark: #1A1500;
  --bg-panel: #2A2510;
  --text-main: #FFFFFF;
  --text-muted: #BDBDBD;
  --border: #4B4530;
  --radius: 12px;
  --font-family: 'Inter', system-ui, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-family);
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.app-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  background-color: var(--bg-panel);
  border-bottom: 1px solid var(--border);
}

.app-header h1 {
  font-size: 1.2rem;
  margin: 0;
  color: var(--primary);
}

.project-controls {
  display: flex;
  gap: 10px;
}

.icon-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.icon-btn:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
}

.icon-btn.danger:hover {
  color: #ef4444;
  border-color: #ef4444;
}

.primary-btn {
  background-color: var(--primary);
  border: none;
  border-radius: 6px;
  color: #000;
  padding: 6px 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.primary-btn:hover {
  background-color: var(--primary-hover);
}

.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.sidebar-left, .sidebar-right {
  width: 280px;
  background-color: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 10px;
  gap: 15px;
  overflow-y: auto;
}

.sidebar-right {
  border-left: 1px solid var(--border);
  border-right: none;
}

.panel h3 {
  font-size: 0.9rem;
  margin: 0 0 10px 0;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.tool-btn {
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.tool-btn:hover {
  border-color: var(--primary);
  color: var(--text-main);
}

.tool-btn.active {
  background-color: var(--primary);
  color: #000;
  border-color: var(--primary);
}

.tool-options {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.toggle-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.toggle-switch input {
  display: none;
}

.toggle-switch .slider {
  width: 36px;
  height: 20px;
  background-color: var(--bg-dark);
  border-radius: 20px;
  position: relative;
  transition: background-color 0.2s;
  border: 1px solid var(--border);
}

.toggle-switch .slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background-color: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.2s;
}

.toggle-switch input:checked + .slider {
  background-color: var(--primary);
  border-color: var(--primary);
}

.toggle-switch input:checked + .slider::after {
  transform: translateX(16px);
  background-color: #000;
}

.toggle-switch .label-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.colors-panel .color-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  margin-bottom: 10px;
}

.color-swatch {
  width: 100%;
  padding-bottom: 100%;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
}

.color-swatch:hover {
  transform: scale(1.1);
  border-color: var(--text-main);
}

.color-swatch.active {
  border: 2px solid var(--text-main);
  box-shadow: 0 0 0 1px var(--bg-dark);
}

.color-picker-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.current-color-preview {
  width: 32px;
  height: 32px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background-color: #000;
}

#color-picker {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  padding: 0;
  cursor: pointer;
}

.canvas-area {
  flex: 1;
  background-color: #111;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: auto; /* Allow scrolling */
}

.canvas-wrapper {
  position: relative;
  background-image:
    linear-gradient(45deg, #1e1e1e 25%, transparent 25%),
    linear-gradient(-45deg, #1e1e1e 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #1e1e1e 75%),
    linear-gradient(-45deg, transparent 75%, #1e1e1e 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  box-shadow: 0 0 20px rgba(0,0,0,0.5);
  cursor: crosshair;
  /* Size will be set by JS */
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
  image-rendering: pixelated;
  width: 100%;
  height: 100%;
}

#main-canvas {
  z-index: 10;
}

#preview-canvas {
  z-index: 20;
  pointer-events: none;
}

#grid-canvas {
  z-index: 15;
  pointer-events: none;
  opacity: 0.2;
}

.canvas-controls {
  position: absolute;
  bottom: 20px;
  background: rgba(0,0,0,0.7);
  padding: 8px 12px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  backdrop-filter: blur(4px);
  z-index: 100; /* Ensure controls are above canvas */
}

.layers-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.layer-list {
  flex: 1;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 10px;
  background: var(--bg-dark);
}

.layer-item {
  padding: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  background: var(--bg-dark);
}

.layer-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.layer-item.active {
  background: rgba(245, 158, 11, 0.2);
  border-left: 3px solid var(--primary);
}

.layer-preview {
  width: 24px;
  height: 24px;
  background: #000;
  border: 1px solid var(--border);
}

.layer-name {
  flex: 1;
  font-size: 0.85rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-controls {
  display: flex;
  gap: 5px;
  justify-content: flex-end;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--bg-panel);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--border);
  width: 300px;
  text-align: center;
}

@keyframes shake {
  0% { transform: translate(1px, 1px) rotate(0deg); }
  10% { transform: translate(-1px, -2px) rotate(-1deg); }
  20% { transform: translate(-3px, 0px) rotate(1deg); }
  30% { transform: translate(3px, 2px) rotate(0deg); }
  40% { transform: translate(1px, -1px) rotate(1deg); }
  50% { transform: translate(-1px, 2px) rotate(-1deg); }
  60% { transform: translate(-3px, 1px) rotate(0deg); }
  70% { transform: translate(3px, 1px) rotate(-1deg); }
  80% { transform: translate(-1px, -1px) rotate(1deg); }
  90% { transform: translate(1px, 2px) rotate(0deg); }
  100% { transform: translate(1px, -2px) rotate(-1deg); }
}

.shake-anim {
  animation: shake 0.5s;
  animation-iteration-count: 1;
}

/* Touch controls for mobile */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
  }
  .sidebar-left, .sidebar-right {
    width: 100%;
    height: auto;
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .workspace {
    flex-direction: column;
  }
  .tool-grid {
    display: flex;
    flex-wrap: nowrap;
  }
  .colors-panel {
    display: none; /* Hide palette on mobile or make it a popup */
  }
  .layer-list {
    max-height: 100px;
  }
}