.atlas-structure-viewer{background:var(--surface);border:1px solid var(--line);margin-top:12px}.viewer-operation-bar{background:var(--paper);border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;display:flex}.viewer-operation-status{color:var(--ink);align-items:center;gap:8px;font-size:13px;display:flex}.viewer-status-dot{background:var(--muted);border-radius:50%;flex:0 0 7px;height:7px}.viewer-status-dot.ready{background:#397a88}.structure-state-icon{color:var(--muted);flex:0 0 20px;width:20px;height:20px}.structure-state-icon.warning{color:#b47536}.structure-result-message{align-items:flex-start;gap:12px;min-width:0;display:flex}.structure-result-message>.structure-state-icon{margin-top:1px}.viewer-operation-actions{flex-wrap:wrap;gap:6px;display:flex}.viewer-operation-actions button,.viewer-load-notice button{background:var(--surface);border:1px solid var(--line-strong);color:var(--ink);cursor:pointer;font:inherit;border-radius:3px;min-height:36px;padding:7px 11px;font-size:12px;font-weight:700}.viewer-operation-actions button:hover:not(:disabled),.viewer-operation-actions button[aria-pressed=true]{background:var(--cyan);border-color:var(--teal)}.viewer-operation-actions button:disabled{color:#7b8797;cursor:default;opacity:.65}:is(.viewer-operation-actions button:focus-visible,.viewer-load-notice button:focus-visible,.viewer-help summary:focus-visible){outline:2px solid var(--teal);outline-offset:2px}.viewer-gesture-guide{grid-template-columns:.7fr .9fr 1.3fr 1.6fr;gap:12px;margin:0;padding:12px 14px;display:grid}.viewer-gesture-guide dt{color:var(--ink);font-size:12px;font-weight:700}.viewer-gesture-guide dd{color:var(--muted);margin:3px 0 0;font-size:11px;line-height:1.5}.atlas-structure-viewer .structure-viewer-shell{border:0;border-top:1px solid var(--line);background:#e8edf3;margin:0;position:relative}.atlas-structure-viewer .structure-viewer-shell iframe{background:#e8edf3}.viewer-load-notice{color:var(--ink);text-align:center;background:#e8edf3;flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:28px;display:flex;position:absolute;inset:0}.viewer-load-notice strong{font-size:17px}.viewer-load-notice p{color:var(--muted);max-width:420px;margin:0;font-size:13px;line-height:1.6}.viewer-load-notice button{background:var(--teal);border-color:var(--teal);color:#fff;margin-top:4px}.viewer-load-notice.error{background:#f5f1eb}.viewer-help{border-top:1px solid var(--line);color:var(--muted);padding:12px 14px;font-size:12px}.viewer-help summary{color:var(--teal-deep);cursor:pointer;font-weight:700;list-style:none}.viewer-help summary::-webkit-details-marker{display:none}.viewer-help p{max-width:950px;margin:10px 0;line-height:1.6}.viewer-help a{color:var(--blue);text-decoration:underline}.viewer-action-notice{color:var(--muted);margin:0;padding:10px 14px;font-size:12px}.structure-layout>.structure-viewer-caption{background:var(--paper);border:1px solid var(--line);color:var(--muted);border-top:0}.structure-layout>.structure-viewer-caption strong{color:var(--ink)}.structure-lookup-result{border-left:3px solid var(--line-strong)}.structure-lookup-result.upstream_unavailable{border-left-color:#b47536}.structure-lookup-result p+p{margin-top:8px}.atlas-structure-viewer:-webkit-full-screen{flex-direction:column;width:100%;height:100%;margin:0;display:flex;overflow:auto}.atlas-structure-viewer:fullscreen{flex-direction:column;width:100%;height:100%;margin:0;display:flex;overflow:auto}.atlas-structure-viewer:-webkit-full-screen .structure-viewer-shell{flex:1;min-height:250px}.atlas-structure-viewer:fullscreen .structure-viewer-shell{flex:1;min-height:250px}.atlas-structure-viewer:-webkit-full-screen .structure-viewer-shell iframe{height:100%}.atlas-structure-viewer:fullscreen .structure-viewer-shell iframe{height:100%}@media (max-width:680px){.viewer-operation-bar{flex-direction:column;align-items:flex-start}.viewer-operation-actions{width:100%}.viewer-operation-actions button{flex:auto;min-height:42px}.viewer-gesture-guide{grid-template-columns:1fr 1fr;gap:12px 16px}.viewer-load-notice{padding:22px}}@media (pointer:coarse){.viewer-operation-actions button,.viewer-load-notice button,.structure-unavailable button,.viewer-help summary{min-height:44px}}.structure-context-key{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:9px;font-size:11px;display:flex}.structure-context-key span{align-items:center;gap:6px;display:flex}.structure-context-key i{border:1px solid #27334326;border-radius:2px;width:10px;height:10px}