.dxf-viewer__ctxbar{border:0;border-bottom:1px solid var(--color-border-subtle);background:var(--color-surface-elevated);box-shadow:none;border-radius:0;flex-wrap:wrap;width:100%;margin:0;padding:8px 12px;display:flex;position:static}.dxf-viewer__left-rail-head,.dxf-viewer__right-rail-head{border-bottom:1px solid var(--color-border-subtle);letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-muted);justify-content:space-between;align-items:center;padding:10px 12px;font-size:.72rem;font-weight:700;display:flex}.dxf-viewer__left-rail-actions{gap:4px;display:inline-flex}.dxf-viewer__left-rail-actions button{width:24px;height:24px;color:var(--color-text-muted);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:1px solid #0000;justify-content:center;align-items:center;display:inline-flex}.dxf-viewer__left-rail-actions button:hover:not([disabled]){background:var(--color-surface-card-hover);color:var(--color-text-body);border-color:var(--color-border-subtle)}.dxf-viewer__left-rail-actions button:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:2px}.dxf-viewer__left-rail-body,.dxf-viewer__right-rail-scroll{scrollbar-width:thin;overscroll-behavior:contain;flex-direction:column;flex:1;gap:6px;padding:8px;display:flex;overflow-y:auto}.dxf-viewer__left-rail-hint{color:var(--color-text-muted);margin:0;padding:12px;font-size:.78rem;line-height:1.5}.dxf-viewer__rail-card{background:var(--color-surface-card);border:1px solid var(--color-border-subtle);border-radius:var(--radius-sm);flex-direction:column;gap:6px;padding:10px 12px;display:flex}.dxf-viewer__skip-notice{border:1px solid color-mix(in srgb, var(--color-warning) 45%, transparent);border-radius:var(--radius-sm);background:var(--color-warning-bg-soft);color:var(--color-text-body);align-items:flex-start;gap:8px;margin:0 0 6px;padding:8px 10px;font-size:.76rem;line-height:1.45;display:flex}.dxf-viewer__skip-notice i{color:var(--color-warning);flex-shrink:0;margin-top:1px;font-size:1rem}.dxf-viewer__skip-notice strong{color:var(--color-text-heading)}.dxf-viewer__skip-notice-detail{color:var(--color-text-muted)}.dxf-viewer__rail-card-head{font:600 .78rem var(--font-ui);text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-heading);align-items:center;gap:6px;display:flex}.dxf-viewer__rail-card-head i{color:var(--color-accent-primary)}.dxf-viewer__rail-card-hint{color:var(--color-text-muted);margin:0;font-size:.76rem;line-height:1.5}.dxf-viewer__entity-row{color:var(--color-text-body);grid-template-columns:1fr auto auto;align-items:center;gap:8px;font-size:.78rem;display:grid}.dxf-viewer__entity-row label{align-items:center;gap:6px;display:inline-flex}.dxf-viewer__entity-row .count{font-family:var(--font-mono);color:var(--color-text-muted);font-size:.72rem}.dxf-viewer__meta{grid-template-columns:max-content 1fr;gap:4px 12px;margin:0;font-size:.78rem;display:grid}.dxf-viewer__meta dt{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.04em;align-self:center;margin:0;font-size:.66rem;font-weight:600}.dxf-viewer__meta dd{color:var(--color-text-body);font-family:var(--font-mono);font-variant-numeric:tabular-nums;word-break:break-word;margin:0;font-size:.78rem}.dxf-viewer__canvas-wrap{background:var(--color-surface-primary);min-width:0;min-height:0;transition:outline-color .12s;position:relative;overflow:hidden}.dxf-viewer__canvas-wrap--drag{outline:2px dashed var(--color-accent-primary);outline-offset:-8px}.dxf-viewer__svg{touch-action:none;user-select:none;width:100%;height:100%;display:block}.dxf-viewer__accordion{border:1px solid var(--color-border-subtle);border-radius:var(--radius-sm);background:var(--color-surface-card);flex-shrink:0;overflow:hidden}.dxf-viewer__accordion-head{width:100%;color:var(--color-text-heading);font:600 .78rem var(--font-ui);text-transform:uppercase;letter-spacing:.04em;cursor:pointer;text-align:left;background:0 0;border:0;border-bottom:1px solid #0000;align-items:center;gap:.5rem;padding:8px 10px;display:flex}.dxf-viewer__accordion-head i{color:var(--color-accent-primary);font-size:1rem}.dxf-viewer__accordion-head-caret{color:var(--color-text-muted);margin-left:auto;font-size:.85rem}.dxf-viewer__accordion-head:hover{background:var(--color-surface-card-hover)}.dxf-viewer__accordion-head:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:-2px}.dxf-viewer__accordion.is-open .dxf-viewer__accordion-head{border-bottom-color:var(--color-border-subtle)}.dxf-viewer__accordion-body{padding:10px 10px 12px}.dxf-viewer__accordion-hint{color:var(--color-text-muted);margin:0;padding:6px 0;font-size:.78rem;line-height:1.5}.dxf-viewer__file-btn,.dxf-viewer__tool-btn{background:var(--color-surface-card);color:var(--color-text-body);border:1px solid var(--color-border-subtle);border-radius:var(--radius-sm);font:.8125rem/1 var(--font-ui);cursor:pointer;align-items:center;gap:.375rem;min-height:32px;padding:.4375rem .75rem;transition:background-color .12s,border-color .12s;display:inline-flex}.dxf-viewer__file-btn:hover:not([disabled]),.dxf-viewer__tool-btn:hover:not([disabled]){background:var(--color-surface-card-hover);border-color:var(--color-border-hover)}.dxf-viewer__file-btn:focus-visible,.dxf-viewer__tool-btn:focus-visible{outline:2px solid var(--color-accent-primary);outline-offset:2px}.dxf-viewer__tool-btn--active{background:color-mix(in srgb, var(--color-accent-primary) 15%, transparent);border-color:var(--color-accent-primary);color:var(--color-accent-primary)}.dxf-viewer__space-toggle{align-items:center;display:inline-flex}.dxf-viewer__space-toggle .dxf-viewer__tool-btn{border-radius:0}.dxf-viewer__space-toggle .dxf-viewer__tool-btn:first-child{border-top-left-radius:var(--radius-sm);border-bottom-left-radius:var(--radius-sm)}.dxf-viewer__space-toggle .dxf-viewer__tool-btn:last-child{border-top-right-radius:var(--radius-sm);border-bottom-right-radius:var(--radius-sm)}.dxf-viewer__space-toggle .dxf-viewer__tool-btn+.dxf-viewer__tool-btn{margin-left:-1px}.dxf-viewer__space-toggle .dxf-viewer__tool-btn--active{z-index:1;position:relative}.dxf-viewer__file-btn[disabled],.dxf-viewer__tool-btn[disabled]{opacity:.5;cursor:not-allowed}.dxf-viewer__file-btn{position:relative;overflow:hidden}.dxf-viewer__file-input{opacity:0;cursor:pointer;position:absolute;inset:0}@media (pointer:coarse){.dxf-viewer__file-btn,.dxf-viewer__tool-btn{min-height:44px;padding:.625rem .875rem}}@media (width<=480px){.dxf-viewer__ctxbar{display:none}}