SystemSimulationApp/frontend/src/styles.css

:root {
  color: #1f2933;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #eef2f6;
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  width: 100%;
  height: 100%;
  margin: 0;
}

button,
input,
textarea {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-rows: 72px minmax(0, 1fr);
  width: 100%;
  height: 100%;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 14px;
  border-bottom: 1px solid #cfd8e3;
  background: #ffffff;
}

.product-name {
  font-size: 15px;
  font-weight: 700;
}

.product-meta {
  margin-top: 2px;
  color: #64748b;
  font-size: 12px;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.primary-button,
.secondary-button {
  height: 32px;
  padding: 0 12px;
  border-radius: 6px;
  cursor: pointer;
}

.primary-button:disabled,
.secondary-button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.primary-button {
  border: 1px solid #1d6fb8;
  color: #ffffff;
  background: #1d6fb8;
}

.secondary-button {
  border: 1px solid #c2ccda;
  color: #263442;
  background: #ffffff;
}

.project-name-field {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #475569;
  font-size: 12px;
  font-weight: 650;
}

.project-name-field input {
  width: 150px;
  height: 32px;
  padding: 0 9px;
  border: 1px solid #c2ccda;
  border-radius: 6px;
  color: #1f2933;
}

.workbench {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr) 330px;
  min-height: 0;
}

.palette,
.properties {
  min-width: 0;
  min-height: 0;
  overflow: auto;
  border-color: #cfd8e3;
  background: #ffffff;
}

.palette {
  border-right: 1px solid #cfd8e3;
}

.properties {
  border-left: 1px solid #cfd8e3;
}

.status-strip {
  padding: 10px 14px;
  border-bottom: 1px solid #e3e8ef;
  color: #155e75;
  background: #ecfeff;
  font-size: 12px;
  font-weight: 650;
}

.panel-title {
  padding: 14px;
  border-bottom: 1px solid #e3e8ef;
  font-size: 13px;
  font-weight: 700;
}

.palette-list,
.parameter-form {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.compact-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-form .field:last-child {
  grid-column: 1 / -1;
}

.palette-item {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 8px;
  border: 1px solid #d6dee9;
  border-radius: 6px;
  color: #22303f;
  text-align: left;
  background: #ffffff;
  cursor: grab;
}

.palette-item small {
  display: block;
  margin-top: 2px;
  overflow: hidden;
  color: #64748b;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.palette-icon {
  display: block;
  width: 32px;
  height: 32px;
  border: 2px solid #4b5563;
  background: #f8fafc;
}

.icon-cylinder {
  border-radius: 13px;
  background: #dbeafe;
}

.icon-tank {
  border-radius: 50%;
  background: #dcfce7;
}

.icon-pipe {
  height: 14px;
  border-radius: 8px;
  background: #f8fafc;
}

.icon-orifice {
  transform: rotate(45deg);
  background: #ffedd5;
}

.icon-tee {
  position: relative;
  border: 0;
}

.icon-tee::before,
.icon-tee::after {
  position: absolute;
  content: "";
  border-radius: 6px;
  background: #e5e7eb;
  border: 2px solid #4b5563;
}

.icon-tee::before {
  top: 12px;
  left: 0;
  width: 32px;
  height: 10px;
}

.icon-tee::after {
  top: 0;
  left: 11px;
  width: 10px;
  height: 32px;
}

.flow-canvas {
  min-width: 0;
  min-height: 0;
  background: #f8fafc;
}

.flow-canvas .react-flow__pane,
.flow-canvas .react-flow__pane.selection,
.flow-canvas .react-flow__node.selectable,
.flow-canvas .react-flow__node.draggable {
  cursor: default;
}

.flow-canvas .react-flow__pane.dragging {
  cursor: grabbing;
}

.flow-canvas .react-flow__node.draggable.dragging {
  cursor: move;
}

.sim-node {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 96px;
  min-height: 58px;
  padding: 8px 16px;
  border: 2px solid #4b5563;
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.08);
}

.sim-node.selected {
  border-color: #1d6fb8;
  box-shadow: 0 0 0 3px rgba(29, 111, 184, 0.15);
}

.node-symbol {
  height: 28px;
}

.node-label {
  max-width: 120px;
  overflow: hidden;
  font-size: 12px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.symbol-cylinder,
.symbol-tank,
.symbol-pipe,
.symbol-orifice,
.symbol-tee {
  width: 42px;
  height: 22px;
  border: 2px solid #4b5563;
  background: #f8fafc;
}

.symbol-cylinder {
  height: 28px;
  border-radius: 12px;
  background: #dbeafe;
}

.symbol-tank {
  height: 28px;
  border-radius: 50%;
  background: #dcfce7;
}

.symbol-pipe {
  height: 12px;
  margin-top: 8px;
  border-radius: 8px;
}

.symbol-orifice {
  width: 26px;
  height: 26px;
  transform: rotate(45deg);
  background: #ffedd5;
}

.symbol-tee {
  position: relative;
  border: 0;
}

.symbol-tee::before,
.symbol-tee::after {
  position: absolute;
  content: "";
  border: 2px solid #4b5563;
  border-radius: 6px;
  background: #f8fafc;
}

.symbol-tee::before {
  top: 8px;
  left: 0;
  width: 42px;
  height: 12px;
}

.symbol-tee::after {
  top: 0;
  left: 14px;
  width: 12px;
  height: 28px;
}

.port-handle {
  width: 10px;
  height: 10px;
  border: 2px solid #374151;
  background: #ffffff;
}

.field {
  display: grid;
  gap: 6px;
  color: #334155;
  font-size: 12px;
  font-weight: 650;
}

.field em {
  margin-left: 6px;
  color: #64748b;
  font-style: normal;
  font-weight: 400;
}

.field input {
  width: 100%;
  height: 34px;
  padding: 0 9px;
  border: 1px solid #c2ccda;
  border-radius: 6px;
  color: #1f2933;
}

.node-id {
  padding-bottom: 8px;
  border-bottom: 1px solid #e3e8ef;
  color: #64748b;
  font-size: 12px;
}

.empty-state {
  padding: 16px;
  color: #64748b;
  font-size: 13px;
}

.xml-output {
  width: calc(100% - 24px);
  min-height: 220px;
  margin: 12px;
  padding: 10px;
  border: 1px solid #c2ccda;
  border-radius: 6px;
  color: #1f2933;
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  resize: vertical;
}

.result-section {
  display: grid;
  gap: 12px;
  padding: 12px;
}

.result-grid {
  display: grid;
  grid-template-columns: minmax(80px, 1fr) minmax(0, 1.4fr);
  gap: 8px 10px;
  align-items: baseline;
  font-size: 12px;
}

.result-grid span {
  color: #64748b;
}

.result-grid strong {
  overflow-wrap: anywhere;
  color: #1f2933;
  font-size: 12px;
}

.run-message {
  padding: 8px;
  border: 1px solid #d6dee9;
  border-radius: 6px;
  color: #334155;
  background: #f8fafc;
  font-size: 12px;
}

.artifact-list {
  display: grid;
  gap: 8px;
}

.artifact-list div {
  display: grid;
  gap: 4px;
  color: #64748b;
  font-size: 11px;
}

.artifact-list code {
  overflow-wrap: anywhere;
  color: #1f2933;
  font-family: Consolas, "Courier New", monospace;
  font-size: 11px;
}

@media (max-width: 1100px) {
  .workbench {
    grid-template-columns: 180px minmax(0, 1fr) 280px;
  }

  .topbar {
    align-items: flex-start;
    padding-top: 8px;
  }

  .project-name-field input {
    width: 120px;
  }
}