/* ═══════════════════════════════════════════════════════════════════
   view3d.css — Стили оверлея 3D-вида шахтной сети
   ═══════════════════════════════════════════════════════════════════ */

.view3d-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: #0a0e1a;
  display: flex;
  flex-direction: column;
  font-family: inherit;
  color: #e6e9ef;
}

.view3d-header {
  flex: 0 0 auto;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: #141826;
  border-bottom: 1px solid #222a3d;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.view3d-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: #e6e9ef;
}

.view3d-header-controls {
  display: flex;
  gap: 6px;
  align-items: center;
}

.view3d-btn {
  background: #1d2235;
  color: #d4d9e4;
  border: 1px solid #2a3148;
  border-radius: 4px;
  padding: 5px 12px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.view3d-btn:hover {
  background: #2a3148;
  border-color: #3a4262;
}

.view3d-btn-close {
  width: 32px;
  height: 28px;
  padding: 0;
  font-size: 20px;
  line-height: 1;
  color: #e85454;
}

.view3d-btn-close:hover {
  background: #3a1e20;
  border-color: #e85454;
}

.view3d-body {
  flex: 1 1 auto;
  position: relative;
  overflow: hidden;
}

#view3dCanvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
}

.view3d-controls {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 220px;
  background: rgba(20, 24, 38, 0.88);
  backdrop-filter: blur(6px);
  border: 1px solid #2a3148;
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 12px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.45);
}

.view3d-control-row {
  margin-bottom: 8px;
}

.view3d-control-row:last-child {
  margin-bottom: 0;
}

.view3d-label {
  display: block;
  margin-bottom: 3px;
  color: #b8bfd0;
  font-size: 11px;
}

.view3d-label input[type="checkbox"] {
  margin-right: 5px;
  vertical-align: middle;
}

.view3d-controls input[type="range"] {
  width: 100%;
  accent-color: #4f9aff;
}

.view3d-legend {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid #2a3148;
}

.view3d-legend-title {
  font-size: 11px;
  color: #8a92a6;
  margin-bottom: 5px;
  letter-spacing: 0.3px;
}

.view3d-legend-item {
  display: flex;
  align-items: center;
  font-size: 11px;
  color: #b8bfd0;
  margin-bottom: 3px;
}

.view3d-legend-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 7px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
}

.view3d-hint {
  position: absolute;
  bottom: 12px;
  left: 14px;
  font-size: 11px;
  color: #6a7184;
  background: rgba(20, 24, 38, 0.6);
  padding: 5px 10px;
  border-radius: 4px;
  pointer-events: none;
  user-select: none;
}

.view3d-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: #6a7184;
  font-size: 14px;
  pointer-events: none;
}

.view3d-empty-icon {
  font-size: 48px;
  opacity: 0.4;
}

/* Поле elevation в панели слоёв */
.layer-elevation-input {
  width: 52px;
  font-size: 10px;
  padding: 1px 3px;
  background: var(--color-hover, #1a1d2e);
  border: 1px solid var(--color-border, #2a3148);
  border-radius: 3px;
  color: var(--color-text-primary, #d4d9e4);
  text-align: right;
  flex-shrink: 0;
  margin-right: 2px;
}

.layer-elevation-input:focus {
  outline: none;
  border-color: var(--color-accent, #4a9eff);
}