body {
  margin: 0;
  overflow: hidden;
  background: transparent;
  font-family: Helvetica, Arial, sans-serif;
}

/* HEADER */
header {
  width: 100%;
  height: 40px;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  pointer-events: none;
}

.app-header-left {
  position: absolute;
  top: 10px;
  left: 20px;
  font-size: 12px;
  font-weight: 600;
}

.app-header-center {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 12px;
  font-weight: 600;
}

/* UI PANEL */
.panel {
  position: fixed;
  top: 40px;
  right: 40px;     /* ← 오른쪽 너무 붙는 문제 해결 */
  width: 150px;
  color: #000;
  font-size: 11px;
  line-height: 0.7;
  user-select: none;
 
}

.panel-section-title {
  margin: 10px 0 4px;
  font-weight: 700;
  
}

.panel-label {
  display: block;
  margin: 6px 0 2px;
  
}

.panel-input, .panel-slider, .panel-color {
  width: 100%;
  margin-bottom: 6px;
}

.panel-checkbox {
  margin: 4px 0 4px;
}

.radio-group {
  margin: 4px 0 8px;
}

.export-btn {
  margin-top: 12px;
  padding: 6px 10px;
  background: #000;
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 11px;
  border-radius: 4px;
}