:root {
  --demo-max-width: 1000px;
}

html {
  font-size: clamp(16px, 1.8vw, 20px);
}

.viz-panel {
  position: relative;
}

.viz-panel .animation-controls.viz-controls {
  position: absolute;
  left: 50%;
  bottom: 0.75rem;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-sm);
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-md);
  background: rgba(10, 10, 18, 0.75);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(6px);
}

.viz-panel .animation-controls.viz-controls .anim-btn {
  font-size: 1rem;
}

#orbit-svg {
  width: 100%;
  height: auto;
  display: block;
}

.slider-group {
  background: rgba(18, 18, 31, 0.7);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 0.75rem 1rem;
  margin-top: var(--space-sm);
}

.slider-group label {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.slider-group .value-display {
  color: var(--cosmic-teal);
  font-family: var(--font-mono);
}

.slider-group input[type='range'] {
  width: 100%;
}

.slider-group .scale-hint {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-align: right;
  margin-top: 0.25rem;
}

.presets-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.readout-panel {
  grid-template-columns: repeat(3, 1fr);
}

.controls-grid {
  grid-template-columns: 1fr 1fr;
}

.readout-panel .readout-label {
  font-size: 0.95rem;
}

.readout-panel .readout-value {
  font-size: 1.25rem;
}

.control-title {
  font-size: 1.05rem;
}

.slider-group label {
  font-size: 0.95rem;
}

.model-note {
  background: rgba(18, 18, 31, 0.9);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  padding: 0.5rem 0.75rem;
  margin: 0.75rem 0 1rem 0;
  color: var(--text-secondary);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
}

.model-note summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-secondary);
}

.model-note p {
  margin: 0.5rem 0 0 0;
  color: var(--text-muted);
}

@media (max-width: 700px) {
  .readout-panel {
    grid-template-columns: repeat(2, 1fr);
  }

  .controls-grid {
    grid-template-columns: 1fr;
  }
}