.cad-modes a[aria-current="page"] {
  color: var(--text);
  background: rgba(140, 112, 171, 0.24);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}
.actual-cad .cad-workspace {
  grid-template-columns: 280px minmax(0, 1fr);
  height: calc(100dvh - 125px);
  min-height: 540px;
}
.actual-cad .assembly-panel { padding: 22px 16px; overflow: auto; }
.actual-cad .panel-heading { padding: 0 8px 18px; }
.actual-cad .panel-heading p { font-size: 11px; }
.actual-cad .panel-heading h1 { font-size: 25px; }
.actual-cad .model-source { font-size: 12px; color: var(--muted); line-height: 1.7; overflow-wrap: anywhere; }
.actual-cad .model-source strong { color: var(--text); font-weight: 500; }
.actual-cad .cad-toolbar { flex-wrap: wrap; gap: 8px; }
.actual-cad .toolbar-group { flex-wrap: wrap; }
.view-layout-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; width: 100%; gap: 8px; }
.actual-cad .layout-tabs button[aria-selected="true"] {
  background: color-mix(in srgb, var(--violet) 20%, var(--panel-solid));
  color: var(--text); box-shadow: inset 0 0 0 1px var(--violet);
}
.compare-link-group { align-items: center; }
.compare-link-group span { color: var(--muted); font-size: 12px; padding: 0 10px; }
.actual-cad .compare-link-group button[aria-pressed="true"] { color: var(--text); background: color-mix(in srgb, var(--cyan) 18%, var(--panel-solid)); }
.model-render-surface { position: absolute; inset: 0; }
.comparison-panes {
  position: absolute; z-index: 2; top: var(--model-tools-bottom, 122px); left: 12px; right: 12px; bottom: 84px;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px;
}
.comparison-pane { position: relative; min-width: 0; min-height: 0; border: 1px solid var(--line-strong); border-radius: 12px; touch-action: none; cursor: grab; }
.comparison-pane:active { cursor: grabbing; }
.comparison-pane.is-active { border-color: var(--cyan); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--cyan) 40%, transparent); }
.comparison-pane-title {
  position: absolute; left: 10px; top: 10px; display: flex; flex-wrap: wrap; align-items: center; gap: 7px;
  max-width: calc(100% - 20px); padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px;
  background: var(--panel-solid); color: var(--text); font-size: 14px; font-weight: 600; cursor: pointer;
}
.comparison-pane-title span { font-size: 11px; color: var(--cyan); }
.comparison-pane-title small { color: var(--muted); font-size: 11px; font-weight: 400; }
.comparison-guide { border-top: 1px solid var(--line); padding: 18px 4px 0; line-height: 1.7; }
.comparison-guide h2 { font-size: 16px; margin: 0 0 12px; }
.comparison-guide p, .comparison-guide dd { font-size: 13px; color: var(--muted); }
.comparison-guide dt { font-size: 13px; color: var(--text); margin-top: 18px; }
.comparison-guide dd { margin: 5px 0 0; }
.is-split-view [data-assembly-mode], .is-split-view .viewport-hint { display: none; }
.is-split-view .model-camera-controls { bottom: 14px; display: flex; align-items: center; gap: 8px; }
.is-split-view .model-pan-controls { grid-template-columns: repeat(4, 44px); }
.is-split-view .pan-control-label { display: none; }
.actual-cad .toolbar-group button[data-assembly-mode][aria-pressed="true"] {
  background: color-mix(in srgb, var(--cyan) 22%, var(--panel-solid));
  color: var(--text); box-shadow: inset 0 0 0 1px var(--cyan);
}
.actual-cad .toolbar-group button[data-drag-mode][aria-pressed="true"] {
  background: color-mix(in srgb, var(--cyan) 18%, var(--panel-solid));
  color: var(--text); box-shadow: inset 0 0 0 1px var(--cyan);
}
.camera-tool-divider { height: 18px; width: 1px; margin: 0 5px; background: var(--line-strong); align-self: center; }
.actual-cad .toolbar-group button:disabled { opacity: 0.45; cursor: wait; }
.model-view-note {
  position: absolute; z-index: 3; top: var(--model-tools-bottom, 112px); left: 18px; right: 18px;
  margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; pointer-events: none;
}
.actual-cad .toolbar-group button { font-size: 13px; min-height: 36px; padding: 7px 12px; }
.actual-cad .viewport-panel { min-height: 0; height: 100%; overflow: hidden; }
.actual-cad canvas { width: 100%; height: 100%; display: block; touch-action: none; }
.actual-cad canvas.is-pan-mode { cursor: grab; }
.actual-cad canvas.is-pan-mode:active { cursor: grabbing; }
.model-camera-controls {
  position: absolute; z-index: 5; right: 18px; bottom: 88px;
  display: grid; gap: 8px;
}
.model-zoom-controls, .model-pan-controls {
  display: grid; grid-template-columns: repeat(2, 44px); padding: 4px; gap: 3px; border: 1px solid var(--line-strong);
  border-radius: 14px; background: var(--panel-solid); box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}
.pan-control-label { grid-column: 1 / -1; text-align: center; font-size: 11px; color: var(--muted); padding: 3px 0; }
.model-camera-controls button {
  display: grid; place-items: center; width: 44px; height: 44px; padding: 0;
  border: 0; border-radius: 9px; background: transparent; color: var(--text); cursor: pointer;
  touch-action: manipulation;
}
.model-pan-controls button { font-size: 22px; line-height: 1; }
.model-camera-controls button:hover { background: var(--panel-soft); }
.model-camera-controls button:active { background: color-mix(in srgb, var(--cyan) 20%, var(--panel-solid)); }
.model-camera-controls button:disabled { opacity: 0.4; cursor: wait; }
.zoom-symbol {
  position: relative; display: grid; place-items: center; width: 21px; height: 21px;
  border: 1.6px solid currentColor; border-radius: 50%; font-size: 17px; line-height: 1;
  margin: -4px 4px 0 0; font-family: system-ui, sans-serif;
}
.zoom-symbol::after {
  content: ''; position: absolute; width: 8px; height: 2px; border-radius: 2px;
  background: currentColor; right: -6px; bottom: -3px; transform: rotate(45deg);
}
.actual-cad .viewport-hint { font-size: 12px; max-width: calc(100% - 28px); white-space: normal; text-align: center; }
.component-browser { margin-top: 18px; }
.tree-mode-switch {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3px; padding: 3px;
  border: 1px solid var(--line); border-radius: 10px; background: var(--panel-soft);
}
.tree-mode-switch button {
  min-width: 0; padding: 8px 5px; border: 0; border-radius: 7px; background: transparent;
  color: var(--muted); font-size: 12px; cursor: pointer;
}
.tree-mode-switch button[aria-selected="true"] {
  color: var(--text); background: color-mix(in srgb, var(--violet) 18%, var(--panel-solid));
  box-shadow: inset 0 0 0 1px var(--violet);
}
.tree-mode-switch button:disabled { opacity: 0.45; cursor: wait; }
.module-basis { margin: 10px 3px 14px; color: var(--muted); font-size: 11px; line-height: 1.55; }
.module-tree { display: grid; gap: 8px; }
.module-tree[hidden], .model-tree[hidden], .component-browser[hidden] { display: none; }
.module-card {
  overflow: hidden; border: 1px solid var(--line); border-radius: 10px;
  background: color-mix(in srgb, var(--panel-solid) 80%, transparent);
}
.module-card[open] { border-color: var(--line-strong); }
.module-card > summary {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 8px; align-items: center;
  padding: 11px; color: var(--text); cursor: pointer; list-style: none;
}
.module-card > summary::-webkit-details-marker { display: none; }
.module-card > summary::before { content: '+'; color: var(--cyan); font-size: 14px; grid-row: 1 / 3; align-self: start; display: none; }
.module-title { min-width: 0; font-size: 13px; font-weight: 650; line-height: 1.35; overflow-wrap: anywhere; }
.module-count { color: var(--cyan); font-size: 11px; font-weight: 600; white-space: nowrap; }
.module-status {
  grid-column: 1 / -1; width: fit-content; padding: 2px 6px; border-radius: 999px;
  background: color-mix(in srgb, var(--cyan) 11%, transparent); color: var(--muted); font-size: 10px;
}
.module-shared-unclassified .module-status {
  background: color-mix(in srgb, #ffbd59 16%, transparent); color: color-mix(in srgb, #ffbd59 70%, var(--text));
}
.module-content { display: grid; gap: 9px; padding: 0 10px 11px; border-top: 1px solid var(--line); }
.module-content > p { margin: 9px 1px 0; color: var(--muted); font-size: 11px; line-height: 1.55; }
.module-content > .module-evidence { margin-top: -4px; color: var(--text); opacity: 0.72; }
.module-tree button {
  display: flex; justify-content: space-between; align-items: baseline; gap: 8px; width: 100%;
  padding: 8px; border: 1px solid transparent; border-radius: 7px; background: transparent;
  color: var(--muted); font-size: 11px; line-height: 1.35; text-align: left; cursor: pointer;
}
.module-tree button:hover { color: var(--text); background: var(--panel-soft); }
.module-tree button[aria-pressed="true"] { color: var(--text); border-color: var(--cyan); background: var(--panel-soft); }
.module-tree button strong { color: var(--cyan); font-size: 10px; font-weight: 600; white-space: nowrap; }
.module-tree .module-select-all {
  margin-top: 2px; border-color: var(--line-strong); background: color-mix(in srgb, var(--cyan) 8%, transparent); color: var(--text);
}
.module-families { display: grid; gap: 2px; padding-top: 6px; border-top: 1px solid var(--line); }
.module-tree button.is-hidden-part { opacity: 0.42; text-decoration: line-through; }
.module-tree button.is-partial { border-style: dashed; border-color: var(--line-strong); }
.model-tree { border-top: 1px solid var(--line); padding-top: 16px; }
.model-tree details { margin: 3px 0; }
.model-tree summary { cursor: pointer; color: var(--muted); font-size: 12px; padding: 6px 2px; overflow-wrap: anywhere; }
.model-tree .model-branch { padding-left: 10px; border-left: 1px solid var(--line); margin-left: 5px; }
.model-tree button {
  text-align: left; width: 100%; border: 1px solid transparent; background: transparent; color: var(--muted);
  padding: 7px 6px; font-size: 12px; line-height: 1.4; border-radius: 6px; cursor: pointer; overflow-wrap: anywhere;
}
.model-tree button:hover { color: var(--text); background: var(--panel-soft); }
.model-tree button[aria-pressed="true"] { color: var(--text); border-color: var(--cyan); background: var(--panel-soft); }
.model-tree button.is-hidden-part { opacity: 0.4; text-decoration: line-through; }
.model-meta { border-top: 1px solid var(--line); margin-top: 20px; padding: 14px 8px; font-size: 12px; color: var(--muted); line-height: 1.8; }
.model-meta p { margin: 4px 0; }
.model-selection {
  position: absolute; z-index: 4; top: calc(var(--model-tools-bottom, 112px) + 45px); right: 18px; width: min(300px, calc(100% - 36px));
  padding: 16px; border: 1px solid var(--line-strong); border-radius: 14px; background: var(--panel-solid); box-shadow: var(--shadow);
}
.model-selection small { color: var(--cyan); font-size: 11px; letter-spacing: 0.1em; }
.model-selection h2 { font-size: 15px; line-height: 1.5; margin: 8px 0; overflow-wrap: anywhere; }
.model-selection p { margin: 6px 0 12px; font-size: 12px; color: var(--muted); }
.model-selection #partSummary { color: var(--text); line-height: 1.55; }
.model-selection-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.model-selection-actions button, .model-error a, .model-error button {
  border: 1px solid var(--line-strong); border-radius: 7px; padding: 8px 10px; background: var(--panel-soft);
  color: var(--text); font-size: 12px; cursor: pointer; text-decoration: none;
}
.model-error { display: grid; gap: 18px; text-align: center; justify-items: center; max-width: 440px; padding: 24px; }
.actual-cad .cad-footer { font-size: 11px; }
@media (max-width: 1050px) {
  .actual-cad .cad-workspace { grid-template-columns: 220px minmax(0, 1fr); }
  .actual-cad .cad-toolbar { left: 10px; right: 10px; }
  .actual-cad .toolbar-group button { padding: 7px 8px; }
}
@media (max-width: 700px) {
  .actual-cad .cad-workspace { display: flex; flex-direction: column-reverse; height: auto; min-height: 0; }
  .actual-cad .viewport-panel { height: 68dvh; min-height: 420px; }
  .actual-cad .assembly-panel { max-height: 300px; border-right: 0; border-top: 1px solid var(--line); }
  .actual-cad .cad-toolbar { justify-content: flex-start; }
  .actual-cad .cad-footer { flex-wrap: wrap; gap: 8px; }
  .actual-cad .model-notice { display: none; }
  .actual-cad .viewport-panel.is-split-view { height: 115dvh; min-height: 900px; }
  .comparison-panes { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) minmax(0, 1fr); }
  .compare-link-group span { font-size: 11px; padding: 0 5px; }
  .is-split-view .model-camera-controls { right: 12px; gap: 5px; }
  .is-split-view .model-camera-controls button { width: 40px; }
  .is-split-view .model-pan-controls { grid-template-columns: repeat(4, 40px); }
  .is-split-view .model-zoom-controls { grid-template-columns: repeat(2, 40px); }
}