/* ── Base ──────────────────────────────────────────── */

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  overflow: hidden;
  background: var(--bg-body);
  color: var(--text-primary);
  margin: 0;
}

html, body {
  height: 100%;
}

/* ── Three.js Canvas ──────────────────────────────── */

#threejs-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-body);
  z-index: 1;
}

/* ── UI Overlay (sits above canvas) ───────────────── */

#ui-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
  pointer-events: none;
  zoom: var(--ui-scale, 1.15);
}

#ui-overlay * {
  pointer-events: auto;
}

/* ── Object info popup ────────────────────────────── */

#obj-info-popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 20000;
  background: var(--bg-confirm-box);
  border: 1px solid var(--border-confirm);
  border-radius: 6px;
  box-shadow: var(--shadow-confirm);
  min-width: 260px;
  max-width: 420px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  font-family: inherit;
  font-size: 13px;
  color: var(--text-secondary);
  pointer-events: auto;
}

.obj-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 8px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.obj-popup-title {
  font-weight: 600;
  color: var(--text-bright);
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.obj-popup-sub {
  padding: 2px 14px 6px;
  font-size: 11px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.obj-popup-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 0 0 0 10px;
  line-height: 1;
  flex-shrink: 0;
  transition: color 0.15s;
}

.obj-popup-close:hover {
  color: var(--text-bright);
}

.obj-popup-table {
  border-collapse: collapse;
  width: 100%;
  overflow-y: auto;
}

.obj-popup-table tr:nth-child(even) {
  background: var(--bg-meta-row-even);
}

.obj-popup-key,
.obj-popup-val {
  padding: 4px 14px;
  vertical-align: top;
}

.obj-popup-key {
  color: var(--text-label);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  white-space: nowrap;
  width: 1%;
}

.obj-popup-val {
  color: var(--text-secondary);
  word-break: break-word;
}

.obj-popup-empty {
  padding: 12px 14px;
  color: var(--text-faint);
  font-style: italic;
  margin: 0;
}