.viewer-shell canvas {
  cursor: default;
  touch-action: none;
}

.algorithm-choice select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 11px;
  font: inherit;
}

.optimization-progress {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f3faf7;
}

.optimization-progress[hidden] { display: none; }
.optimization-progress div { display: flex; justify-content: space-between; gap: 12px; }
.optimization-progress strong { font-size: .88rem; }
.optimization-progress span,
.optimization-progress p { color: var(--muted); font-size: .78rem; }
.optimization-progress progress { width: 100%; height: 10px; accent-color: var(--accent); }
.optimization-progress .optimization-footer { align-items: center; }
.abort-optimization { border: 1px solid var(--warning); border-radius: 7px; background: #fff; color: var(--warning); padding: 7px 9px; font: inherit; font-size: .76rem; font-weight: 800; cursor: pointer; white-space: nowrap; }
.abort-optimization:disabled { cursor: not-allowed; opacity: .5; }

.viewer-shell canvas.camera-dragging {
  cursor: grabbing;
}

.layer-controls {
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: 8px;
  background: rgba(255, 255, 255, .9);
  box-shadow: 0 8px 24px rgba(33, 43, 54, .09);
  backdrop-filter: blur(10px);
}

.layer-status {
  display: grid;
  min-width: 150px;
  gap: 2px;
}

.layer-status strong { font-size: .9rem; }
.layer-status span { color: var(--muted); font-size: .75rem; }
.layer-actions { display: flex; gap: 5px; }

.layer-actions button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  padding: 0 10px;
  font-size: .78rem;
  font-weight: 800;
  cursor: pointer;
}

.layer-actions button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent-strong); }
.layer-actions button:disabled { cursor: not-allowed; opacity: .42; }

.camera-hint {
  position: absolute;
  z-index: 2;
  top: 17px;
  right: 16px;
  border-radius: 7px;
  background: rgba(26, 39, 36, .74);
  color: #fff;
  padding: 7px 10px;
  font-size: .74rem;
  font-weight: 700;
  pointer-events: none;
}

.box-tooltip {
  position: absolute;
  z-index: 4;
  display: none;
  min-width: 190px;
  max-width: 260px;
  border: 1px solid rgba(255, 255, 255, .65);
  border-radius: 9px;
  background: rgba(26, 39, 36, .94);
  box-shadow: 0 10px 30px rgba(20, 28, 34, .2);
  color: #fff;
  padding: 10px 12px;
  pointer-events: none;
}

.box-tooltip.visible { display: grid; gap: 4px; }
.box-tooltip strong { font-size: .9rem; }
.box-tooltip span { color: rgba(255, 255, 255, .78); font-size: .76rem; }

.viewer-controls .name-toggle {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  cursor: pointer;
}

.viewer-controls .name-toggle input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.placement-card.active-layer {
  border-color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
  background: #f3faf7;
}

.placement-card.future-layer { opacity: .42; }

@media (max-width: 760px) {
  .layer-controls {
    right: 10px;
    left: 10px;
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
  }

  .layer-status { min-width: 0; }
  .layer-actions button { flex: 1; }
  .camera-hint { display: none; }
}