.ithdw-viewer{position:relative;display:flex;flex-direction:column;background:#f1f5f9;border:1px solid #d5dfe7;border-radius:14px;overflow:hidden;color:#172d3e;isolation:isolate}.ithdw-viewer model-viewer{display:block;width:100%;height:clamp(320px,60vh,720px);min-height:260px;background:radial-gradient(ellipse at center,#fff,#e6edf3);--progress-bar-color:#17676c}.ithdw-toolbar{display:flex;flex-wrap:wrap;gap:8px;padding:12px}.ithdw-toolbar button{font:inherit;font-size:14px;cursor:pointer;background:#fff;color:#173b48;border:1px solid #9bacb8;border-radius:7px;padding:9px 14px}.ithdw-toolbar button:hover{background:#e0f1f0}.ithdw-toolbar button:focus-visible{outline:3px solid #086bce;outline-offset:2px}.ithdw-status,.ithdw-help{padding:0 14px;margin:0 0 12px;font:14px/1.5 system-ui,sans-serif}.ithdw-status:empty{display:none}.ithdw-help{color:#405365}.ithdw-viewer:fullscreen,.ithdw-viewer.ithdw-expanded{background:#f1f5f9;border-radius:0;width:100%;height:100%;box-sizing:border-box}.ithdw-viewer:fullscreen model-viewer,.ithdw-viewer.ithdw-expanded model-viewer{flex:1;height:0;min-height:0}.ithdw-expanded{position:fixed!important;inset:0;z-index:2147483647}.ithdw-public{margin:0;background:#fff;color:#172d3e;font:17px/1.65 system-ui,-apple-system,sans-serif}.ithdw-site-header{padding:18px max(24px,calc((100vw - 1100px)/2));border-bottom:1px solid #e1e7ec}.ithdw-site-header a{color:inherit;font-weight:600;text-decoration:none}.ithdw-page{max-width:1100px;margin:40px auto;padding:0 24px 48px}.ithdw-page h1{font-size:clamp(28px,4vw,48px);line-height:1.15;margin:0 0 28px}.ithdw-description{margin-top:28px;overflow-wrap:anywhere}.ithdw-description img{max-width:100%;height:auto}@media(max-width:600px){.ithdw-page{margin-top:24px;padding:0 16px 32px}.ithdw-viewer model-viewer{height:55vh}}
/* Reusable model block; fullscreen takes precedence over its chosen height. */
.ithdw-model-block{margin-block:24px}.ithdw-model-block .ithdw-viewer model-viewer{height:var(--ithdw-block-height,480px);min-height:240px}.ithdw-model-block .ithdw-viewer:fullscreen model-viewer,.ithdw-model-block .ithdw-viewer.ithdw-expanded model-viewer{height:0;min-height:0}.ithdw-block-title{margin:0 0 16px}.ithdw-block-empty{padding:20px;border:1px solid currentColor;border-radius:8px}
/* Help stays inside the viewer in normal and fullscreen modes. */
.ithdw-help-control{display:flex;align-items:center}.ithdw-help-popup[hidden]{display:none!important}.ithdw-help-popup{position:absolute;right:12px;bottom:64px;z-index:30;width:360px;max-width:calc(100% - 24px);max-height:calc(100% - 24px);overflow:auto;padding:16px 18px;border:1px solid #52728d;border-radius:9px;background:#122231;color:#f1f6fc;box-shadow:0 8px 30px #0005;font:13px/1.6 system-ui,sans-serif;text-align:left;box-sizing:border-box}.ithdw-help-popup strong{display:block;margin-bottom:8px;font-size:14px}.ithdw-help-popup p{margin:0 0 10px;color:inherit;font:inherit}.ithdw-help-popup p:last-child{margin-bottom:0}.ithdw-toolbar{flex-shrink:0}

/* Viewer layout v1.4: a persistent left rail and bottom explosion control. */
.ithdw-viewer.ithdw-viewer{display:grid;grid-template-columns:124px minmax(0,1fr);grid-template-rows:minmax(360px,auto) auto auto;align-items:stretch}
.ithdw-viewer.ithdw-viewer model-viewer{grid-column:2;grid-row:1;min-width:0;width:100%;min-height:360px}
.ithdw-viewer .ithdw-toolbar{grid-column:1;grid-row:1;display:flex;flex-direction:column;flex-wrap:nowrap;justify-content:flex-start;align-items:stretch;gap:6px;padding:10px;min-height:0;overflow-y:auto}
.ithdw-viewer .ithdw-toolbar button{width:100%;box-sizing:border-box;font-size:12px;padding:8px 5px;min-height:32px;flex-shrink:0}
.ithdw-help-control{display:block}.ithdw-explode{grid-column:1/-1;display:flex;align-items:center;gap:14px;padding:14px 18px;margin:0;font:14px/1.4 system-ui,sans-serif;border-top:1px solid #7893a544;color:inherit}
.ithdw-explode input{flex:1;min-width:0;width:auto;margin:0;accent-color:#0088f9;cursor:pointer}.ithdw-explode input:disabled{cursor:default;opacity:.4}.ithdw-explode output{min-width:42px;text-align:right;color:inherit}.ithdw-status{grid-column:1/-1}
.ithdw-viewer.ithdw-viewer:fullscreen,.ithdw-viewer.ithdw-viewer.ithdw-expanded{grid-template-rows:minmax(0,1fr) auto auto;height:100%;width:100%}
.ithdw-viewer.ithdw-viewer:fullscreen model-viewer,.ithdw-viewer.ithdw-viewer.ithdw-expanded model-viewer{height:100%;min-height:0}
.ithdw-viewer .ithdw-help-popup{position:absolute;left:130px;right:auto;bottom:72px;max-width:calc(100% - 142px);max-height:calc(100% - 90px)}
@media(max-width:600px){.ithdw-viewer.ithdw-viewer{grid-template-columns:96px minmax(0,1fr)}.ithdw-viewer .ithdw-toolbar{padding:6px;gap:5px}.ithdw-viewer .ithdw-toolbar button{font-size:11px;padding:7px 3px}.ithdw-viewer .ithdw-help-popup{left:100px;max-width:calc(100% - 108px);padding:10px;font-size:12px}.ithdw-explode{gap:8px;padding:12px}}

.ithdw-loading model-viewer{visibility:hidden}