* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #000;
  color: #00ff00;
  font-family: 'Courier New', monospace;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

#app {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

#render-canvas {
  background: #000;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* Drop Zone */
.drop-zone {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.85);
  cursor: pointer;
  transition: background 0.2s;
}

.drop-zone:hover {
  background: rgba(0, 20, 0, 0.9);
}

.drop-zone.hidden {
  display: none;
}

.drop-zone.drag-over {
  background: rgba(0, 40, 0, 0.95);
}

.drop-zone-content {
  text-align: center;
}

.drop-icon {
  font-size: 80px;
  margin-bottom: 20px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.drop-text {
  font-size: 24px;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.drop-hint {
  font-size: 14px;
  opacity: 0.6;
}

/* Loading */
.loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.9);
}

.loading.hidden {
  display: none;
}

.loading-text {
  font-size: 20px;
  letter-spacing: 4px;
  animation: blink 0.5s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Axis Labels */
#axis-labels {
  position: absolute;
  left: 10px;
  bottom: 10px;
  width: 100px;
  height: 100px;
  pointer-events: none;
  z-index: 1000;
}

#axis-labels.hidden {
  display: none;
}

.axis-label {
  position: absolute;
  font-size: 12px;
  font-weight: bold;
  font-family: 'Courier New', monospace;
  text-shadow: 0 0 6px currentColor, 0 0 2px currentColor;
}

#axis-x { left: 80px; bottom: 45px; }
#axis-y { left: 45px; bottom: 80px; }
#axis-z { left: 45px; bottom: 45px; }

/* lil-gui overrides for CRT aesthetic */
:root {
  --lil-gui-name-width: 45%;
  --lil-gui-widget-height: 22px;
  --lil-gui-title-height: 28px;
  --lil-gui-font-size: 11px;
  --lil-gui-font-family: 'Courier New', monospace;
}