/* Paint Modal */
#paint-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

#paint-modal.active {
  display: flex;
}

.paint-container {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  max-width: 95%;
  max-height: 90vh;
}

.canvas-wrapper {
  background: white;
  border-radius: 15px;
  padding: 10px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  transition: transform 0.1s ease-out;
  transform-origin: 0 0;
}

#paint-canvas {
  background: white;
  border-radius: 10px;
  cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Ccircle cx='16' cy='16' r='12' fill='none' stroke='black' stroke-width='2'/%3E%3Ccircle cx='16' cy='16' r='8' fill='%23000000'/%3E%3C/svg%3E") 16 16, auto;
}

.paint-controls {
  display: flex;
  flex-direction: column;
  gap: 15px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 20px;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  min-width: 200px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  color: white;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.color-picker {
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  padding: 0;
  background: none;
}

.color-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.color-preset {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
}

.color-preset:hover {
  transform: scale(1.2);
  border-color: white;
}

.color-preset.active {
  border-color: white;
  transform: scale(1.1);
}

.size-slider {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.2);
  outline: none;
  -webkit-appearance: none;
}

.size-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
}

.size-display {
  color: white;
  font-size: 14px;
  text-align: center;
}

.paint-btn-control {
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  color: white;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.paint-btn-control:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

.paint-btn-control:active {
  transform: translateY(2px);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.paint-btn-control.active {
  background: rgba(255, 100, 100, 0.3);
  border-color: rgba(255, 100, 100, 0.5);
}

.paint-btn-control:disabled {
  cursor: not-allowed;
  filter: grayscale(0.5);
}

.paint-btn-control.clear {
  background: rgba(255, 50, 50, 0.2);
}

.paint-btn-control.clear:hover {
  background: rgba(255, 50, 50, 0.4);
}

.paint-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 40px;
  color: white;
  cursor: pointer;
  z-index: 10001;
  background: rgba(255, 255, 255, 0.1);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.paint-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.paint-close:active {
  transform: scale(0.9);
  background: rgba(255, 255, 255, 0.05);
}


/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  padding: 10px 0;
}

.tool-btn {
  width: 50px;
  height: 50px;
  border: none;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(255,255,255,0.15), rgba(255,255,255,0.05));
  backdrop-filter: blur(10px);
  font-size: 24px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.3),
    0 1px 3px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: visible;
}

.tool-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at center, rgba(255,255,255,0.3) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.tool-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 
    0 8px 12px rgba(0, 0, 0, 0.4),
    0 2px 4px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  background: linear-gradient(145deg, rgba(255,255,255,0.25), rgba(255,255,255,0.1));
}

.tool-btn:hover::before {
  opacity: 1;
}

.tool-btn:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.tool-btn.active {
  background: linear-gradient(145deg, rgba(100, 200, 255, 0.4), rgba(80, 160, 220, 0.3));
  box-shadow: 
    0 0 20px rgba(100, 200, 255, 0.4),
    0 4px 6px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 
      0 0 15px rgba(100, 200, 255, 0.4),
      0 4px 6px rgba(0, 0, 0, 0.3),
      inset 0 1px 0 rgba(255, 255, 255, 0.3);
  }
  50% {
    box-shadow: 
      0 0 25px rgba(100, 200, 255, 0.6),
      0 4px 6px rgba(0, 0, 0, 0.3),
      inset 0 1px 0 rgba(255, 255, 255, 0.3);
  }
}

.tool-btn.clear-btn:hover {
  background: linear-gradient(145deg, rgba(255, 100, 100, 0.3), rgba(255, 50, 50, 0.2));
}

.tool-btn.save-btn:hover {
  background: linear-gradient(145deg, rgba(100, 255, 150, 0.3), rgba(50, 220, 100, 0.2));
}

.tool-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
  filter: grayscale(1);
}

.tool-btn:disabled:hover {
  transform: none;
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.3),
    0 1px 3px rgba(0, 0, 0, 0.2);
}

.tool-btn svg {
  width: 24px;
  height: 24px;
  stroke: #ffffff;
  transition: all 0.3s ease;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

.tool-btn:hover svg {
  stroke: #ffffff;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.5));
  transform: scale(1.1);
}

.tool-btn.active svg {
  stroke: #a8d8ff;
  filter: drop-shadow(0 0 8px rgba(100, 200, 255, 0.8));
}

.tool-btn.clear-btn:hover svg {
  stroke: #ffcccc;
}

.tool-btn.save-btn:hover svg {
  stroke: #ccffcc;
}

.tool-btn:disabled svg {
  stroke: #888888;
  filter: grayscale(1);
}

/* Layers */
.layers-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 200px;
  overflow-y: auto;
  padding: 10px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  margin-bottom: 10px;
}

.layer-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.layer-item:hover {
  background: rgba(255, 255, 255, 0.2);
}

.layer-item.active {
  background: rgba(100, 200, 255, 0.3);
  border-color: rgba(100, 200, 255, 0.8);
  box-shadow: 0 0 10px rgba(100, 200, 255, 0.3);
}

.layer-item.hidden-layer {
  opacity: 0.5;
}

.layer-thumbnail {
  width: 40px;
  height: 30px;
  background: white;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  flex-shrink: 0;
}

.layer-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.layer-name {
  font-size: 12px;
  color: white;
  font-weight: 500;
}

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

.layer-control-btn {
  width: 24px;
  height: 24px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  color: white;
  font-size: 12px;
}

.layer-control-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}

.layer-control-btn.active {
  background: rgba(100, 200, 255, 0.5);
}

.layers-controls {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.layer-btn {
  width: 100%;
  height: 40px;
}

.layer-btn svg {
  width: 18px;
  height: 18px;
}

/* Canvas Layers */
.canvas-layers-container {
  position: relative;
  width: 800px;
  height: 600px;
}

.canvas-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.canvas-layer.active-layer {
  pointer-events: auto;
}

/* Tooltips */
.tool-btn::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  pointer-events: none;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  letter-spacing: 0.5px;
}

.tool-btn::before {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid rgba(0, 0, 0, 0.9);
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  pointer-events: none;
  z-index: 1000;
}

.tool-btn:hover::after,
.tool-btn:hover::before {
  opacity: 1;
  visibility: visible;
}

.tool-btn:hover::after {
  transform: translateX(-50%) translateY(-12px);
}

.tool-btn:hover::before {
  transform: translateX(-50%) translateY(-8px);
}

/* Opacity Control */
.opacity-control input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  outline: none;
}

.opacity-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: rgba(100, 200, 255, 0.8);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

.opacity-control input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: rgba(100, 200, 255, 0.8);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
  border: none;
}

/* Paint Responsive */
@media (max-width: 900px) {
  .paint-container {
    flex-direction: column;
    align-items: center;
  }
  .paint-controls {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    min-width: auto;
  }
  .control-group {
    min-width: 150px;
  }
}