.sop-canvas-toolbar {
  display: grid;
  gap: 12px;
  margin-bottom: 14px;
}

.sop-canvas-toolbar .actions {
  justify-content: space-between;
}

.sop-canvas-layout {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(260px, 1.08fr);
  gap: 14px;
  align-items: start;
}

.sop-canvas-rail {
  max-height: 560px;
  overflow: auto;
  padding: 12px;
  border-radius: 18px;
  background:
    linear-gradient(90deg, rgba(110, 168, 255, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(110, 168, 255, 0.08) 1px, transparent 1px),
    rgba(7, 16, 31, 0.48);
  background-size: 28px 28px;
  border: 1px solid rgba(143, 174, 255, 0.12);
}

.sop-canvas-stages {
  display: grid;
  gap: 10px;
}

.sop-node {
  position: relative;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 12px;
  border-radius: 16px;
  color: var(--text);
  background: linear-gradient(180deg, rgba(12, 23, 45, 0.94), rgba(8, 17, 34, 0.94));
  border: 1px solid rgba(143, 174, 255, 0.16);
  box-shadow: none;
}

.sop-node::after {
  content: '';
  position: absolute;
  left: 29px;
  bottom: -11px;
  width: 2px;
  height: 10px;
  background: rgba(110, 168, 255, 0.3);
}

.sop-node:last-child::after {
  display: none;
}

.sop-node.active {
  border-color: rgba(110, 168, 255, 0.58);
  box-shadow: inset 0 0 0 1px rgba(110, 168, 255, 0.22), 0 16px 34px rgba(79, 124, 255, 0.14);
}

.sop-node.disabled {
  opacity: .56;
}

.sop-node-index {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  color: #dce8ff;
  background: rgba(110, 168, 255, 0.14);
  font-size: 12px;
  font-weight: 900;
}

.sop-node-title {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-weight: 850;
}

.sop-node p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.sop-stage-editor {
  display: grid;
  gap: 12px;
  min-height: 260px;
  padding: 14px;
  border-radius: 18px;
  background: rgba(7, 16, 31, 0.62);
  border: 1px solid rgba(143, 174, 255, 0.14);
}

.sop-editor-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.sop-editor-head b {
  font-size: 16px;
}

.sop-editor-grid {
  display: grid;
  gap: 10px;
}

.sop-editor-grid textarea {
  min-height: 76px;
}

.sop-editor-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.sop-stage-editor .checkbox-field {
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(143, 174, 255, 0.12);
}

@media (max-width: 900px) {
  .sop-canvas-layout {
    grid-template-columns: 1fr;
  }
}