.view-toolbar {
  position: absolute;
  z-index: 16;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px 5px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 4px 14px rgba(15, 34, 51, 0.12), 0 1px 3px rgba(0, 0, 0, 0.05);
}
.view-toolbar button {
  display: grid;
  place-items: center;
  width: 30px;
  height: 28px;
  padding: 4px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: #475569;
  cursor: pointer;
  transition: all 0.12s ease;
}
.view-toolbar button:hover {
  background: #f1f5f9;
  color: #0288d1;
}
.view-toolbar button[aria-pressed="true"],
.view-toolbar button[aria-expanded="true"] {
  background: #e0f2fe;
  color: #0284c7;
}
.view-toolbar svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.view-toolbar-divider {
  width: 1px;
  height: 19px;
  margin: 0 3px;
  background: #e2e8f0;
}
.display-settings-menu[hidden] { display: none; }
.display-settings-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + 7px);
  width: 210px;
  padding: 8px;
  border: 1px solid #aabfcc;
  border-radius: 5px;
  background: #fff;
  box-shadow: 0 6px 18px #243d5038;
  color: #344d5e;
  font: 12px Arial, sans-serif;
}
.display-settings-menu strong { display: block; padding: 4px 6px 7px; font-size: 11px; }
.display-settings-menu label { display: flex; align-items: center; gap: 7px; padding: 7px 6px; border-radius: 3px; cursor: pointer; white-space: nowrap; }
.display-settings-menu label:hover { background: #edf4f8; }
.display-settings-menu input { margin: 0; accent-color: #2585b5; }
@media (max-width: 700px) { .view-hint { display: none; } }
.model-pane .view-hint { bottom: 52px; max-width: 300px; line-height: 1.35; }