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0;border-radius:999px;justify-content:center;align-items:center;width:38px;height:38px;display:inline-flex}.paperclip-icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:18px;height:18px}.panel{background:var(--surface);border:1px solid var(--rule)}.row-list{border-top:1px solid var(--rule)}.shared-design-list{gap:var(--space-s);margin-top:var(--space-l);display:grid}.shared-design-card{background:var(--surface);border:1px solid var(--rule);color:inherit;align-items:flex-start;gap:var(--space-m);padding:var(--space-s);justify-content:flex-start;display:flex}.shared-design-card:hover{border-color:var(--ink)}.shared-design-card__image{background:var(--paper);border:1px solid var(--rule);object-fit:contain;flex:0 0 128px;width:128px;height:128px;display:block}.shared-design-card:focus-visible{border-color:var(--ink);outline:1px solid var(--ink);outline-offset:3px}.shared-design-card__body{gap:var(--space-2xs);min-width:0;display:grid}.auth-shared-design-card{align-items:flex-start;gap:var(--space-m);margin-bottom:var(--space-s);padding:var(--space-s);display:flex}.auth-shared-design-card__image{background:var(--paper);border:1px solid var(--rule);object-fit:contain;flex:0 0 96px;align-self:flex-start;width:96px;height:96px;display:block}.auth-shared-design-card__image--empty{color:var(--muted);font-size:var(--step--1);padding:var(--space-s);text-align:center;justify-content:center;align-items:center;display:flex}.auth-shared-design-card__body{gap:var(--space-xs);flex:1;min-width:0;display:grid}.shared-design-card__title{font-size:var(--step-1);overflow-wrap:anywhere;margin:0;font-weight:400}.shared-design-pagination{border-top:1px solid var(--rule);align-items:center;gap:var(--space-xs);margin-top:var(--space-l);padding-top:var(--space-s);flex-wrap:wrap;justify-content:center;display:flex}.row{border-bottom:1px solid var(--rule);align-items:center;gap:var(--space-s);padding:var(--space-s) 0;grid-template-columns:1.5fr .55fr .9fr 1fr auto;display:grid}.row-title{font-size:var(--step-0)}.muted{color:var(--ink-faint)}.ok{color:var(--ok)}.warn{color:var(--warn)}.danger{color:var(--danger)}.workspace{min-height:calc(100dvh - 64px)}.workspace-toolbar,.tabs{border-bottom:1px solid var(--rule);align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-l);flex-wrap:wrap;display:flex}.workspace-toolbar{padding-bottom:var(--space-2xs);padding-top:var(--space-2xs);justify-content:space-between}.workspace-session-meta{flex-wrap:nowrap;flex:480px}.tabs{justify-content:space-between}.tab-list,.tab-export{align-items:center;gap:var(--space-xs);display:flex}.shared-design-title-row{align-items:center;gap:var(--space-m);grid-template-rows:auto auto;grid-template-columns:minmax(0,1fr) auto;display:grid}.shared-design-title-row .headline{grid-area:1/1}.shared-design-description{white-space:pre-wrap;grid-area:2/1/auto/-1}.shared-design-description-ellipsis{color:inherit;cursor:pointer;font:inherit;text-underline-offset:.2em;background:0 0;border:0;padding:0;text-decoration:underline}.shared-design-description-ellipsis:focus-visible{outline:1px solid var(--ink);outline-offset:3px}.shared-design-description-dialog{background:var(--paper);border:1px solid var(--rule);box-sizing:border-box;color:var(--ink);height:fit-content;max-height:calc(100dvh - 2 * var(--space-l));padding:var(--space-l);width:min(760px, calc(100vw - 2 * var(--space-l)));margin:auto;position:fixed;inset:0;overflow:auto}.shared-design-description-dialog::backdrop{background:#00000073}.shared-design-description-dialog__body{gap:var(--space-m);display:grid}.shared-design-description-dialog__text{overflow-wrap:anywhere;white-space:pre-wrap}.shared-design-description-dialog__body .button{justify-self:start}.shared-design-toolbar{grid-area:1/2;justify-content:flex-end;margin:0;display:flex}@media (max-width:759px){.shared-design-title-row{flex-direction:column;align-items:stretch;display:flex}.shared-design-title-row .headline{order:1}.shared-design-description{order:2}.shared-design-toolbar{order:3;justify-content:flex-start}}.tab-export{margin-left:auto}.tab-export .export-select{width:min(220px,42vw)}.session-name{color:var(--ink);field-sizing:content;min-width:0;max-width:360px;padding:var(--space-2xs) 0;background:0 0;border:0;flex:0 auto}.workspace-session-meta .status-label{border-left:1px solid var(--rule);padding-left:var(--space-xs);flex:none}.tab{color:var(--ink-mid);padding:var(--space-2xs) 0;background:0 0;border:0;border-bottom:1px solid #0000}.tab[aria-selected=true]{border-color:var(--ink);color:var(--ink)}.workspace-content{padding:var(--space-l)}.chat-layout{gap:var(--space-s);grid-template-rows:1fr auto;height:calc(100dvh - 220px);min-height:0;display:grid}.chat-scroll{min-height:0;padding-right:var(--space-2xs);overflow:auto}.message-list{gap:var(--space-s);display:grid}.message{padding:0;display:block}.message-card{width:min(760px,78%)}.message-body{gap:var(--space-xs);display:grid}.message-math,.message-body .katex-display{max-width:100%;overflow:auto hidden}.message-images{gap:var(--space-2xs);margin-bottom:var(--space-xs);flex-wrap:wrap;justify-content:flex-end;display:flex}.message-pi .message-images{justify-content:flex-start}.message-image{aspect-ratio:1;border:1px solid var(--rule);object-fit:cover;width:100%;max-width:min(180px,45%);display:block}.message-body p,.message-body h3{margin:0;line-height:1.45}.message-body h3,.message-body strong{font-weight:700}.message-body h3{font-size:var(--step-0)}.message-body ul,.message-body ol{gap:var(--space-2xs);margin:0;padding-left:1.4rem;line-height:1.45;display:grid}.message-body ul{list-style:outside}.message-body ol{list-style:decimal}.message-body li::marker{color:var(--ink-mid)}.message-body li>ul,.message-body li>ol{margin-top:var(--space-2xs)}.message-body code{background:var(--paper)}@supports (color:color-mix(in lab, red, red)){.message-body code{background:color-mix(in srgb, var(--paper) 70%, var(--rule))}}.message-body code{border:1px solid var(--rule);padding:.05rem .25rem;font-size:.92em}.message-body pre{max-width:100%;margin:0;overflow-x:auto}.message-body pre code{padding:var(--space-xs);display:block}.message-you{text-align:right}.message-you .message-card{color:var(--ink-mid);font-size:var(--step--2);padding:var(--space-xs) 0;text-align:right;margin-left:auto}.message-pi{text-align:left}.message-pi .message-card{background:var(--surface);color:var(--ink);font-size:var(--step--2);padding:var(--space-xs);width:100%;margin-right:auto}.message-pi .message-body h3{font-size:var(--step--2)}.thinking-block{border-bottom:1px solid var(--rule);color:var(--ink-faint);margin-bottom:var(--space-s);padding-bottom:var(--space-s)}.thinking-block summary{color:var(--ink-mid);cursor:pointer;font-size:var(--step--2);font-weight:700;list-style-position:inside}.thinking-block .message-body{font-size:var(--step--2);margin-top:var(--space-xs)}.composer{gap:var(--space-s);display:grid}.textarea.is-dragging{background:var(--accent)}@supports (color:color-mix(in lab, red, red)){.textarea.is-dragging{background:color-mix(in srgb, var(--accent) 8%, var(--paper))}}.textarea.is-dragging{border-color:var(--accent)}.message-images>.message-image-button{cursor:zoom-in;background:0 0;border:0;flex:none;width:auto;max-width:45%;padding:0;display:inline-flex}.message-image-button>.message-image{width:180px;max-width:100%;height:180px}.image-preview{background:var(--ink);align-items:center}@supports (color:color-mix(in lab, red, red)){.image-preview{background:color-mix(in srgb, var(--ink) 88%, transparent)}}.image-preview{padding:var(--space-l);z-index:10000;justify-content:center;display:flex;position:fixed;inset:0}.image-preview__image{height:auto;max-height:calc(100vh - 2 * var(--space-xl));max-width:calc(100vw - 2 * var(--space-xl));object-fit:contain;width:auto}.image-preview__close{background:var(--paper);border:1px solid var(--rule);color:var(--ink);height:40px;right:var(--space-m);top:var(--space-m);width:40px;position:absolute}.attachment-strip{gap:var(--space-2xs);flex-wrap:wrap;display:flex}.attachment-thumb{aspect-ratio:1;border:1px solid var(--rule);height:84px;position:relative;overflow:hidden}.attachment-thumb img{object-fit:cover;width:100%;height:100%;display:block}.attachment-remove{background:var(--paper);align-items:center}@supports (color:color-mix(in lab, red, red)){.attachment-remove{background:color-mix(in srgb, var(--paper) 86%, transparent)}}.attachment-remove{border:1px solid var(--rule);color:var(--ink);font-size:var(--step--2);justify-content:center;width:24px;height:24px;display:inline-flex;position:absolute;top:4px;right:4px}.textarea,.text-input,.export-select,.param-input{background:var(--surface);border:1px solid var(--rule);color:var(--ink);padding:var(--space-s);width:100%}.textarea{font-size:var(--step--2);resize:vertical;min-height:96px}.view-layout{align-items:start;gap:var(--space-m);grid-template-columns:minmax(0,2fr) minmax(280px,.8fr);display:grid}.cad-viewer{background:linear-gradient(var(--rule) 1px, transparent 1px), linear-gradient(90deg, var(--rule) 1px, transparent 1px), var(--surface);border:1px solid var(--rule);align-content:space-between;gap:var(--space-s);min-height:600px;padding:var(--space-s);background-size:42px 42px;grid-template-rows:auto minmax(0,1fr) auto;display:grid;overflow:visible}.xcaf-viewer-stage{height:clamp(480px,100dvh - 260px,720px);min-height:0;position:relative}.measurement-options{position:relative}.viewer-tool-button{z-index:1;width:38px;height:38px;min-height:38px;padding:0;position:relative}.viewer-tool-button:after{background:var(--ink);color:var(--paper);content:attr(data-tooltip);font-size:var(--step--2);letter-spacing:.04em;opacity:0;padding:var(--space-2xs) var(--space-xs);pointer-events:none;text-transform:none;left:50%;bottom:calc(100% + var(--space-2xs));visibility:hidden;white-space:nowrap;z-index:30;transition:opacity .12s,transform .12s;position:absolute;transform:translate(-50%,3px)}.viewer-tool-button:hover:after,.viewer-tool-button:focus-visible:after{opacity:1;visibility:visible;transform:translate(-50%)}.inline-actions>.viewer-tool-button:last-child:after{left:auto;right:0;transform:translateY(3px)}.inline-actions>.viewer-tool-button:last-child:hover:after,.inline-actions>.viewer-tool-button:last-child:focus-visible:after{transform:translateY(0)}.viewer-tool-icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.7px;width:19px;height:19px}.viewer-tool-icon__axis-label{fill:currentColor;stroke:none;font-family:Arial,sans-serif;font-size:4px;font-weight:700}.measurement-options__popup{background:var(--surface);border:1px solid var(--ink);box-shadow:0 10px 24px var(--ink)}@supports (color:color-mix(in lab, red, red)){.measurement-options__popup{box-shadow:0 10px 24px color-mix(in srgb, var(--ink) 14%, transparent)}}.measurement-options__popup{gap:var(--space-2xs);min-width:150px;padding:var(--space-xs);right:0;top:calc(100% + var(--space-2xs));z-index:12;display:grid;position:absolute}.measurement-options__row{color:var(--ink);cursor:pointer;font-size:var(--step--1);align-items:center;gap:var(--space-xs);min-height:32px;padding:0 var(--space-2xs);grid-template-columns:auto 1fr;display:grid}.measurement-options__row:hover{background:var(--ink)}@supports (color:color-mix(in lab, red, red)){.measurement-options__row:hover{background:color-mix(in srgb, var(--ink) 6%, transparent)}}.measurement-options__row input{accent-color:var(--ink);width:16px;height:16px;margin:0}.measurement-readout{background:var(--surface)}@supports (color:color-mix(in lab, red, red)){.measurement-readout{background:color-mix(in srgb, var(--surface) 94%, transparent)}}.measurement-readout{border:1px solid var(--rule);bottom:var(--space-xs);color:var(--ink);font-size:var(--step--1);left:var(--space-xs);max-width:calc(100% - (2 * var(--space-xs)));padding:var(--space-2xs) var(--space-xs);pointer-events:none;white-space:pre-line;z-index:5;position:absolute}.button.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}.xcaf-canvas{width:100%;height:100%;min-height:0;display:block}.param-panel{align-content:start;align-self:start;gap:var(--space-s);grid-template-rows:auto minmax(0,1fr) auto;max-height:calc(100dvh - 220px);display:grid}.export-select{min-height:38px;padding:0 var(--space-xs)}.param-list{gap:var(--space-s);min-height:0;padding-right:var(--space-2xs);display:grid;overflow:auto}.param-row{gap:var(--space-2xs);display:grid}.param-heading{min-width:0}.param-help{vertical-align:middle;margin-left:.35em;display:inline-block;position:relative}.param-help-button{color:var(--ink-faint);cursor:pointer;letter-spacing:0;text-transform:none;background:0 0;border:1px solid;border-radius:50%;justify-content:center;align-items:center;width:16px;height:16px;min-height:16px;padding:0;font-size:.65rem;font-style:italic;font-weight:600;line-height:1;display:inline-flex}.param-help-copy{background:var(--ink);border:1px solid var(--rule);color:var(--paper);font-size:var(--step--1);opacity:0;overflow-wrap:anywhere;max-width:calc(100vw - 32px);max-height:calc(100vh - 16px);padding:var(--space-2xs) var(--space-xs);pointer-events:none;visibility:hidden;z-index:10000;border-radius:3px;width:min(280px,100vw - 32px);margin:0;line-height:1.45;position:fixed;top:0;left:0;overflow:auto;box-shadow:0 6px 20px #0000002e}.param-help-button:hover+.param-help-copy,.param-help-button:focus-visible+.param-help-copy,.param-heading[data-open=true] .param-help-copy{opacity:1;visibility:visible}@media (hover:none){.param-heading:not([data-open=true]) .param-help-button:hover+.param-help-copy{opacity:0;visibility:hidden}}.param-input{border-width:0 0 1px;padding-left:0}.overlay{background:var(--paper);padding:var(--space-l);z-index:50;position:fixed;inset:0;overflow:auto}.overlay__body{gap:var(--space-m);margin:var(--space-xl) auto 0;max-width:760px;display:grid}.share-link-row{align-items:center;gap:var(--space-xs);display:flex}.share-link-row .text-input{width:100%;min-width:0}.copy-icon{fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:1.8px;width:18px;height:18px}.alert{border:1px solid var(--rule);color:var(--ink-mid);margin-top:var(--space-s);padding:var(--space-s)}.alert-error{border-color:var(--danger)}@supports (color:color-mix(in lab, red, red)){.alert-error{border-color:color-mix(in srgb, var(--danger) 45%, var(--rule))}}.alert-error{color:var(--danger)}.alert-success{border-color:var(--ok)}@supports (color:color-mix(in lab, red, red)){.alert-success{border-color:color-mix(in srgb, var(--ok) 45%, var(--rule))}}.alert-success{color:var(--ok)}.hidden-field{position:absolute;left:-10000px}.cookie-consent{background:var(--paper);border-top:1px solid var(--rule);z-index:100;position:fixed;bottom:0;left:0;right:0}.cookie-consent__content{align-items:center;gap:var(--space-m);max-width:1400px;padding:var(--space-s) var(--space-l);justify-content:space-between;margin:0 auto;display:flex}@media (max-width:900px){.site-header,.workspace-toolbar,.tabs,.workspace-content,.page{padding-left:var(--space-m);padding-right:var(--space-m)}.rule-grid,.view-layout,.row{grid-template-columns:1fr}.cad-viewer{min-height:360px}.chat-layout{height:calc(100dvh - 200px)}.param-panel{max-height:none;padding-bottom:var(--space-m)}.workspace-session-meta{flex-basis:100%}.param-list{max-height:none;overflow:visible}.tab-export{margin-left:0}.tab-export .export-select{width:min(220px,55vw)}.message{padding:0}.message-card{width:92%}.cookie-consent__content{padding-left:var(--space-m);padding-right:var(--space-m);flex-direction:column;align-items:flex-start}}@media (max-width:600px){.site-header{padding-bottom:var(--space-xs);padding-top:var(--space-xs);grid-template-columns:1fr auto}.headline{font-size:var(--step-4)}.shared-design-card{flex-direction:column;align-items:stretch}.shared-design-card__image{flex-basis:auto;width:100%;height:auto}.auth-shared-design-card{flex-direction:column;align-items:stretch}.auth-shared-design-card__image{flex-basis:auto;width:100%;height:auto;min-height:160px;max-height:480px}}.grecaptcha-badge{visibility:hidden}.recaptcha-disclosure{font-size:.68rem}.auth-home-link{margin-bottom:var(--space-l);align-items:center;display:inline-flex}.auth-home-logo{width:32px;height:32px;display:block}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}