/* Canvas */
#scribbleCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  cursor: crosshair;
  touch-action: none;
  background: white;
}

/* Controls */
.controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  z-index: 100;
}

/* Color Selector */
.color-selector {
  display: flex;
  gap: var(--space-xs);
  padding: var(--space-xs);
  background: var(--color-bg-panel);
  border-radius: var(--border-radius);
}

.color-btn {
  width: 32px;
  height: 32px;
  border: 2px solid transparent;
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.color-btn:hover {
  transform: scale(1.1);
}

.color-btn.active {
  border-color: #000;
  box-shadow: 0 0 0 2px white, 0 0 0 4px currentColor;
}

/* Clear Button */
.clear-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: white;
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: var(--touch-target-min);
}

.clear-btn:hover {
  background: #ff4444;
  border-color: #ff4444;
  color: white;
  transform: translateY(-1px);
}

.clear-btn:active {
  transform: translateY(0);
}

/* Info */
.info {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-bg-panel);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

/* Responsive */
@media screen and (max-width: 600px) {
  .controls {
    bottom: 10px;
    left: 10px;
    right: 10px;
    transform: none;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .color-selector {
    justify-content: center;
  }

  .info {
    flex-direction: row;
    justify-content: space-around;
    width: 100%;
  }
}

@media screen and (max-width: 400px) {
  .color-btn {
    width: 28px;
    height: 28px;
  }

  .controls {
    padding: var(--space-sm);
  }
}