:root { 
  --ui-bg: rgba(6, 8, 15, 0.85); 
  --accent: #00d1ff; 
  --accent-2: #ffb347; 
  --text: #e6eef6; 
  --border: rgba(255, 255, 255, 0.1);
}

* { 
  box-sizing: border-box; 
}

html, body { 
  height: 100%; 
  margin: 0; 
  background: #05060a; 
  color: var(--text); 
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  overflow: hidden;
}

#ui { 
  position: absolute; 
  left: 16px; 
  top: 16px; 
  z-index: 1000; 
  background: var(--ui-bg); 
  padding: 16px; 
  border-radius: 12px; 
  max-width: 420px; 
  backdrop-filter: blur(8px); 
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.7);
  border: 1px solid var(--border);
}

#ui h1 { 
  margin: 0 0 8px 0; 
  font-size: 18px; 
  font-weight: 600;
  color: var(--accent);
}

#ui p { 
  margin: 8px 0; 
  font-size: 13px; 
  color: #cfd8dc; 
  line-height: 1.4;
}

#status { 
  margin-top: 12px; 
  color: var(--accent-2); 
  font-weight: 600; 
  font-size: 13px; 
  padding: 8px;
  background: rgba(255, 179, 71, 0.1);
  border-radius: 6px;
  border-left: 3px solid var(--accent-2);
}

.controls { 
  display: flex; 
  gap: 10px; 
  flex-wrap: wrap; 
  align-items: center; 
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.controls button { 
  background: rgba(255, 255, 255, 0.08); 
  color: var(--text); 
  border: 1px solid var(--border); 
  padding: 8px 12px; 
  border-radius: 6px; 
  cursor: pointer; 
  font-size: 13px; 
  font-weight: 500;
  transition: all 0.2s ease;
}

.controls button:hover { 
  background: rgba(255, 255, 255, 0.12); 
  border-color: var(--accent);
}

.controls button:active { 
  transform: scale(0.98);
}

.control-inline { 
  font-size: 12px; 
  display: flex; 
  align-items: center; 
  gap: 8px; 
  color: #a8b7c7;
}

.control-inline select {
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 6px;
  border-radius: 6px;
  font-size: 12px;
}

.control-inline input[type="range"] { 
  width: 120px;
  accent-color: var(--accent);
}

.control-inline input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

#eventLog { 
  margin-top: 12px; 
  max-height: 180px; 
  overflow-y: auto; 
  font-size: 11px; 
  color: #cfeaf6; 
  background: rgba(0, 0, 0, 0.2); 
  padding: 10px; 
  border-radius: 8px; 
  border: 1px solid var(--border);
  font-family: 'Courier New', monospace;
}

#eventLog::-webkit-scrollbar {
  width: 6px;
}

#eventLog::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 3px;
}

#eventLog::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

#eventLog .ev { 
  padding: 6px 8px; 
  margin-bottom: 6px; 
  border-radius: 4px; 
  background: rgba(0, 209, 255, 0.05); 
  display: flex; 
  justify-content: space-between; 
  gap: 8px;
  border-left: 2px solid var(--accent);
}

#eventLog .ev small { 
  color: #9fb2c2; 
  font-size: 10px;
}

/* Responsive design */
@media (max-width: 768px) { 
  #ui { 
    left: 8px; 
    right: 8px; 
    top: 8px; 
    max-width: unset; 
    padding: 12px;
    font-size: 14px;
  }
  
  #ui h1 {
    font-size: 16px;
  }
  
  .controls { 
    gap: 8px;
    flex-direction: column;
    align-items: stretch;
  }
  
  .controls button {
    width: 100%;
    padding: 12px;
    font-size: 14px;
  }
  
  .control-inline {
    width: 100%;
    justify-content: space-between;
  }
  
  .control-inline input[type="range"] { 
    width: 150px;
  }
  
  #cameraSelect {
    width: 100% !important;
  }
  
  #eventLog {
    max-height: 120px;
    font-size: 10px;
  }
}

@media (max-width: 480px) { 
  #ui { 
    padding: 10px;
    font-size: 13px;
  }
  
  #ui h1 {
    font-size: 15px;
  }
  
  #ui p {
    font-size: 12px;
  }
  
  .controls button {
    padding: 10px;
    font-size: 13px;
  }
  
  .control-inline input[type="range"] { 
    width: 120px; 
  }
  
  #eventLog {
    max-height: 100px;
  }
}

/* Touch-friendly controls */
@media (hover: none) and (pointer: coarse) {
  .controls button {
    padding: 14px 16px;
    font-size: 15px;
    min-height: 48px;
  }
  
  .control-inline input[type="checkbox"] {
    width: 24px;
    height: 24px;
  }
  
  .control-inline input[type="range"] {
    height: 32px;
  }
}

/* Three.js canvas will fill the entire viewport */
canvas { 
  display: block; 
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  touch-action: none;
}

/* Mobile virtual joystick */
#mobileControls {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
}

#mobileControls.active {
  display: block;
}

.joystick-container {
  width: 120px;
  height: 120px;
  background: rgba(0, 209, 255, 0.15);
  border: 2px solid var(--accent);
  border-radius: 50%;
  position: relative;
  touch-action: none;
  backdrop-filter: blur(8px);
}

.joystick-knob {
  width: 50px;
  height: 50px;
  background: var(--accent);
  border-radius: 50%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.1s ease;
  box-shadow: 0 4px 12px rgba(0, 209, 255, 0.4);
}

.mobile-button {
  width: 60px;
  height: 60px;
  background: rgba(0, 209, 255, 0.2);
  border: 2px solid var(--accent);
  border-radius: 50%;
  position: fixed;
  bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent);
  touch-action: none;
  backdrop-filter: blur(8px);
  user-select: none;
}

.mobile-button:active {
  background: rgba(0, 209, 255, 0.4);
}

/* Loading indicator */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

#status.loading {
  animation: pulse 1.5s ease-in-out infinite;
}