/* ---------- Planta 3D: equipment rail, systems flyout and unit card ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--state-stopped);
}
.dot[data-state='running'] {
  background: var(--state-running);
}
.dot[data-state='warning'],
.dot[data-state='unknown'] {
  background: var(--state-warning);
}
.dot[data-state='alarm'] {
  background: var(--state-alarm);
  box-shadow: 0 0 6px var(--state-alarm);
  animation: dot-pulse 1.2s ease-in-out infinite;
}
@keyframes dot-pulse {
  50% {
    opacity: 0.45;
  }
}
@media (prefers-reduced-motion: reduce) {
  .dot[data-state='alarm'] {
    animation: none;
  }
}
.equipment-rail {
  position: absolute;
  top: 50%;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  border: 1px solid var(--glass-line);
  border-radius: 12px;
  background: var(--glass);
  backdrop-filter: blur(8px);
  transform: translateY(-50%);
}
.equipment-rail button {
  position: relative;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--on-glass);
  cursor: pointer;
}
.equipment-rail button:hover {
  background: rgb(255 255 255 / 0.1);
}
.equipment-rail button[aria-expanded='true'] {
  background: var(--accent);
  color: #1d2a33;
}
.equipment-rail svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.equipment-rail .dot {
  position: absolute;
  right: 5px;
  bottom: 5px;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--glass-solid);
  box-sizing: content-box;
}
.rail-alerts {
  position: absolute;
  top: 1px;
  right: 1px;
  min-width: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--state-alarm);
  color: #fff;
  font-size: 10px;
  line-height: 16px;
}
.rail-flyout {
  position: absolute;
  left: 74px;
  width: 248px;
  max-height: calc(100% - 24px);
  overflow: auto;
  padding: 8px;
  border: 1px solid var(--glass-line);
  border-radius: 10px;
  background: var(--glass-solid);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.25);
  color: var(--on-glass);
  font-size: 12px;
}
.rail-flyout header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 2px 6px 6px;
  border-bottom: 1px solid var(--glass-line);
}
.rail-flyout header small {
  color: var(--on-glass-muted);
}
.rail-flyout ul {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}
.rail-flyout li button {
  display: grid;
  grid-template-columns: 10px auto 1fr;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--on-glass);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.rail-flyout li button:hover {
  background: rgb(255 255 255 / 0.08);
}
.rail-flyout li button.is-selected {
  box-shadow: inset 3px 0 0 var(--accent);
  background: rgb(245 179 53 / 0.12);
}
.rail-flyout li span {
  justify-self: end;
  color: var(--on-glass-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}