/**
 * Kids Coloring Magic - Canvas Viewport & Floating HUD
 */

.canvas-viewport {
  flex: 1;
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  touch-action: none;
}

.coloring-main-canvas {
  touch-action: none;
  background-color: #FFFFFF;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  cursor: crosshair;
  transform-origin: center center;
  transition: transform 0.05s ease-out;
  max-width: 92%;
  max-height: 92%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

/* Floating Zoom & Canvas Controls HUD */
.canvas-floating-hud {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px 8px;
  box-shadow: var(--shadow-md);
  gap: 6px;
  z-index: 50;
}

.hud-btn {
  background: none;
  border: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
}

.hud-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: scale(1.08);
}

.hud-btn:active {
  transform: scale(0.95);
}

.zoom-indicator {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  padding: 0 4px;
  min-width: 44px;
  text-align: center;
}

/* Print Optimization */
@media print {
  body, html {
    background: #FFF !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  .top-header, .bottom-dock, .canvas-floating-hud, .modal-overlay, #celebration-confetti-canvas {
    display: none !important;
  }
  .main-workspace, .canvas-viewport {
    background: none !important;
    width: 100vw !important;
    height: 100vh !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  .coloring-main-canvas {
    box-shadow: none !important;
    max-width: 95vw !important;
    max-height: 95vh !important;
    border-radius: 0 !important;
    transform: none !important;
  }
}