.differential-settlement-panel {
  display: grid;
  gap: 16px;
}

.ds-foundation-source {
  display: grid;
  gap: 0.65rem;
  margin-bottom: 1rem;
  padding: 0.85rem;
  border: 1px solid #bdd3e6;
  border-radius: 12px;
  background: #f4f9fd;
}

.ds-source-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.ds-source-actions button {
  flex: 1 1 150px;
}

.ds-source-trace {
  margin-bottom: 0.9rem;
}

.differential-settlement-panel[hidden] {
  display: none;
}

.ds-heading-card,
.ds-heading-actions,
.ds-canvas-toolbar,
.ds-inline-check {
  align-items: center;
  display: flex;
}

.ds-heading-card {
  justify-content: space-between;
}

.ds-heading-actions,
.ds-canvas-toolbar {
  flex-wrap: wrap;
  gap: 8px;
}

.ds-step-nav {
  background: #eaf2fb;
  border: 1px solid #cfdded;
  border-radius: 14px;
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
  padding: 7px;
}

.ds-step-nav button {
  background: transparent;
  border: 0;
  border-radius: 9px;
  color: #31516f;
  cursor: pointer;
  font-weight: 700;
  min-height: 38px;
  padding: 7px 10px;
}

.ds-step-nav button.active {
  background: #0f4f7f;
  box-shadow: 0 4px 12px rgb(15 79 127 / 18%);
  color: #fff;
}

.ds-layout {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr) minmax(290px, 360px);
}

.ds-editor-card,
.ds-controls-card {
  min-width: 0;
}

.ds-canvas-toolbar {
  background: #f5f8fc;
  border: 1px solid #d9e4ef;
  border-radius: 10px;
  margin-bottom: 10px;
  padding: 8px;
}

.ds-canvas-toolbar > label:not(.ds-file-button):not(.ds-inline-check) {
  align-items: center;
  display: flex;
  gap: 6px;
  margin-left: auto;
}

.ds-file-button {
  cursor: pointer;
}

.ds-canvas-wrap {
  background: #f8fbff;
  border: 1px solid #bcd0e3;
  border-radius: 12px;
  min-height: 420px;
  overflow: hidden;
  position: relative;
}

#dsCanvas {
  cursor: crosshair;
  display: block;
  min-height: 420px;
  touch-action: none;
  width: 100%;
}

.ds-canvas-hint {
  background: rgb(255 255 255 / 88%);
  border-radius: 8px;
  bottom: 10px;
  color: #385a77;
  font-size: 12px;
  left: 10px;
  margin: 0;
  padding: 6px 9px;
  pointer-events: none;
  position: absolute;
}

.ds-controls-card > section {
  display: grid;
  gap: 11px;
}

.ds-controls-card > section[hidden] {
  display: none;
}

.ds-controls-card label,
.ds-family-grid label {
  color: #24435f;
  display: grid;
  font-size: 12px;
  font-weight: 700;
  gap: 4px;
}

.ds-controls-card input,
.ds-controls-card select,
.ds-family-grid input {
  border: 1px solid #c6d6e6;
  border-radius: 7px;
  min-height: 34px;
  padding: 6px 8px;
}

.ds-family-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr 1fr;
}

.ds-family-grid fieldset {
  border: 1px solid #d5e1ed;
  border-radius: 10px;
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 9px;
}

.ds-family-grid legend {
  color: #0b4a78;
  font-weight: 800;
}

.ds-axis-create-actions,
.ds-axis-selection-actions {
  display: grid;
  gap: 6px;
}

.ds-axis-create-actions {
  grid-template-columns: 1fr 1fr;
}

.ds-axis-selection-actions {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.ds-axis-create-actions button,
.ds-axis-selection-actions button {
  min-height: 32px;
  padding: 5px 7px;
}

.ds-axis-selection-actions button.is-selected {
  background: #dcecff;
  border-color: #0f5f9a;
  color: #0b4a78;
  font-weight: 800;
}

.ds-axis-move-hint {
  background: #eef6ff;
  border-left: 3px solid #176aa5;
  border-radius: 5px;
  margin: 0;
  padding: 7px 9px;
}

.ds-axis-node-hint {
  background: #fff8e8;
  border-left: 3px solid #c57612;
  border-radius: 5px;
  margin: 0;
  padding: 7px 9px;
}

.ds-template-rows {
  display: grid;
  gap: 8px;
}

.ds-axis-rows,
.ds-connection-list {
  display: grid;
  gap: 6px;
}

.ds-axis-row {
  align-items: end;
  background: #f7faff;
  border: 1px solid #d8e5f1;
  border-radius: 8px;
  display: grid;
  gap: 5px;
  grid-template-columns: auto 0.7fr 1fr 1fr auto;
  padding: 6px;
}

.ds-axis-row.is-selected {
  background: #eaf4ff;
  border-color: #2977ad;
  box-shadow: inset 3px 0 #1565a4;
}

.ds-axis-row .ds-axis-row-select {
  align-items: center;
  align-self: center;
  display: flex;
  gap: 4px;
  white-space: nowrap;
}

.ds-axis-row .ds-axis-row-select input {
  min-height: 16px;
  width: 16px;
}

.ds-axis-row .ds-remove-axis {
  align-self: end;
  min-height: 34px;
  padding: 5px 8px;
}

.ds-connection-editor {
  align-items: center;
  background: #f7faff;
  border: 1px solid #d8e5f1;
  border-radius: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  padding: 9px;
}

.ds-connection-editor select {
  border: 1px solid #c8d8e8;
  border-radius: 6px;
  min-height: 32px;
}

.ds-connection-list {
  flex-basis: 100%;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.ds-connection-item {
  align-items: center;
  background: #fff;
  border: 1px solid #d5e2ed;
  border-radius: 7px;
  display: flex;
  justify-content: space-between;
  padding: 5px 7px;
}

.ds-template-row {
  background: #f7faff;
  border: 1px solid #d8e5f1;
  border-radius: 9px;
  display: grid;
  gap: 5px;
  grid-template-columns: 0.8fr repeat(4, 1fr) auto;
  padding: 7px;
}

.ds-template-row label {
  font-size: 10px;
}

.ds-loads-table input,
.ds-loads-table select,
#dsExplorationRows input,
#dsLayerRows input {
  border: 1px solid #c8d8e8;
  border-radius: 5px;
  box-sizing: border-box;
  max-width: 90px;
  min-height: 29px;
  padding: 4px 5px;
  width: 100%;
}

.ds-profile-details {
  margin-top: 12px;
}

.ds-profile-details summary {
  color: #0f4f7f;
  cursor: pointer;
  font-weight: 800;
  padding: 8px 0;
}

.ds-warnings {
  color: #8c3e0a;
  display: grid;
  font-size: 12px;
  gap: 5px;
}

.ds-status-ok {
  color: #08783e;
  font-weight: 800;
}

.ds-status-fail {
  color: #b42318;
  font-weight: 800;
}

.ds-plan-image {
  pointer-events: none;
}

.ds-axis-a,
.ds-axis-b {
  fill: none;
  stroke-width: 2;
}

.ds-axis-a { stroke: #1565a4; }
.ds-axis-b { stroke: #b96013; }
.ds-axis-a.ds-axis-selected,
.ds-axis-b.ds-axis-selected {
  filter: drop-shadow(0 0 2px rgb(255 255 255 / 95%));
  stroke: #d12d20;
  stroke-width: 4;
}
.ds-axis-hit {
  cursor: grab;
  fill: none;
  pointer-events: stroke;
  stroke: rgb(0 0 0 / 0.001%);
  stroke-width: 18;
}
#dsCanvas.ds-axis-dragging,
#dsCanvas.ds-axis-dragging .ds-axis-hit { cursor: grabbing; }
.ds-node-candidate {
  cursor: pointer;
  fill: #fff;
  stroke: #6f8294;
  stroke-dasharray: 3 2;
  stroke-width: 2.5;
}
.ds-node-candidate:hover,
.ds-node-candidate:focus {
  fill: #dff0ff;
  outline: none;
  stroke: #0f5f9a;
  stroke-dasharray: none;
  stroke-width: 4;
}
.ds-node-active,
.ds-node-label { cursor: pointer; }
.ds-building-polygon { fill: rgb(29 123 88 / 8%); stroke: #16704f; stroke-width: 3; }
.ds-scale-line { stroke: #b42318; stroke-width: 4; }
.ds-connection { stroke: #8aa3ba; stroke-dasharray: 7 5; stroke-width: 2; }
.ds-support { fill: #fff; stroke: #0e5285; stroke-width: 3; }
.ds-support.ds-result-ok { fill: #b9ebce; stroke: #08783e; }
.ds-support.ds-result-warn { fill: #ffd5ca; stroke: #b42318; }
.ds-footing { fill: rgb(22 102 164 / 13%); stroke: #12639d; stroke-width: 1.5; }
.ds-exploration { fill: #7b3fb3; stroke: #fff; stroke-width: 2; }
.ds-svg-label { fill: #173b58; font-size: 16px; font-weight: 800; paint-order: stroke; stroke: #fff; stroke-width: 4px; }

@media (max-width: 1180px) {
  .ds-step-nav { grid-template-columns: repeat(3, 1fr); }
  .ds-layout { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .ds-heading-card { align-items: flex-start; flex-direction: column; }
  .ds-step-nav { grid-template-columns: 1fr 1fr; }
  .ds-family-grid { grid-template-columns: 1fr; }
  .ds-axis-create-actions { grid-template-columns: 1fr; }
  .ds-axis-selection-actions { grid-template-columns: 1fr 1fr; }
  .ds-axis-row { grid-template-columns: auto 1fr; }
  .ds-template-row { grid-template-columns: 1fr 1fr; }
  #dsCanvas, .ds-canvas-wrap { min-height: 340px; }
}

@media print {
  .ds-step-nav,
  .ds-canvas-toolbar,
  .ds-controls-card,
  .ds-heading-actions { display: none !important; }
  .ds-layout { grid-template-columns: 1fr; }
}