.blueprint{--site-accent:#2c63d6;--site-line:color-mix(in srgb, var(--fg) 12%, transparent);--site-line-strong:color-mix(in srgb, var(--fg) 18%, transparent);position:relative}:root[data-theme=dark] .blueprint,:root:not([data-theme=light]) .blueprint{--site-accent:#6ea0ff}.blueprint:before{content:"";z-index:-1;background-image:linear-gradient(var(--site-line) 1px, transparent 1px), linear-gradient(90deg, var(--site-line) 1px, transparent 1px);opacity:.22;pointer-events:none;background-size:22px 22px;position:fixed;inset:0;mask-image:radial-gradient(circle at 50% 30%,#000 60%,#0000 100%)}.blueprint .eyebrow{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--site-accent);margin-bottom:.4rem;font-size:.68rem}.site-rail,.site-picker{--rail-accent:#2c63d6}:root[data-theme=dark] .site-rail,:root:not([data-theme=light]) .site-rail,:root[data-theme=dark] .site-picker,:root:not([data-theme=light]) .site-picker{--rail-accent:#6ea0ff}.site-rail{display:none}.site-picker{border:1px solid var(--site-line-strong);border-radius:var(--radius);font-family:var(--font-sans);margin:0 0 1rem;position:relative}.site-picker summary{cursor:pointer;align-items:center;gap:.65rem;min-height:44px;padding:.55rem .75rem;list-style:none;display:flex}.site-picker summary::-webkit-details-marker{display:none}.site-picker summary:after{content:"⌄";color:var(--muted);margin-left:auto}.site-picker[open] summary:after{transform:rotate(180deg)}.site-picker summary span{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:.68rem}.site-picker summary strong{font-size:.88rem}.site-picker-panel{border-top:1px solid color-mix(in srgb, var(--fg) 14%, transparent);max-height:min(68dvh,32rem);padding:.7rem;overflow:auto}.site-picker-top{gap:var(--gap-1);grid-template-columns:auto minmax(0,1fr);align-items:center;margin-bottom:.75rem;display:grid}.site-picker-top>a{min-height:var(--control-h);border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);color:var(--fg);align-items:center;padding:0 .7rem;text-decoration:none;display:inline-flex}.site-tool-search{width:100%;min-height:var(--control-h);border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);background:var(--bg);color:var(--fg);font:.95rem var(--font-sans);padding:0 .7rem}.site-tool-search:focus{outline:2px solid var(--rail-accent);outline-offset:1px}.site-nav-group{margin:0 0 .8rem}.site-nav-group[hidden],[data-site-tool-link][hidden]{display:none!important}.site-nav-category{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 .3rem;font-size:.68rem;display:block}.site-picker-links{grid-template-columns:repeat(2,minmax(0,1fr));gap:.3rem;display:grid}.site-picker-links a{border-radius:var(--radius-sm);min-height:44px;color:var(--fg);align-items:center;padding:.35rem .55rem;font-size:.82rem;text-decoration:none;display:flex}.site-picker-links a.active{background:var(--rail-accent);color:#fff}@media (width>=1100px){.site-picker{display:none}.site-rail{z-index:4;width:12.5rem;max-height:calc(100dvh - 7rem);font-size:.86rem;font-family:var(--font-sans);flex-direction:column;display:flex;position:fixed;top:5.5rem;left:max(1rem,50vw - 33rem)}.workspace-page .site-rail{left:1.5rem}.site-nav-head{justify-content:space-between;align-items:center;margin-bottom:.45rem;display:flex}.site-rail .rail-title{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:.68rem}.site-rail .site-nav-all{color:var(--rail-accent);padding:.2rem;font-size:.75rem}.site-rail .site-tool-search-label{margin-bottom:.65rem}.site-nav-groups{scrollbar-width:thin;min-height:0;padding-right:.25rem;overflow:auto}.site-rail .site-nav-group{margin-bottom:.55rem}.site-rail a[data-site-tool-link]{height:32px;color:var(--muted);border-radius:var(--radius-sm);border-left:2px solid #0000;align-items:center;padding:0 .5rem;text-decoration:none;display:flex}.site-rail a[data-site-tool-link]:hover{color:var(--fg)}.site-rail a[data-site-tool-link].active{color:var(--fg);border-left-color:var(--rail-accent);background:var(--code-bg)}}@media print{.site-rail,.site-picker{display:none!important}}.tool-grid{gap:var(--gap-2);grid-template-columns:repeat(auto-fill,minmax(13rem,1fr));margin:1.5rem 0;padding:0;list-style:none;display:grid}.tool-grid li{min-width:0;margin:0}.tool-card{border:1px solid var(--site-line-strong);border-radius:var(--radius);color:var(--fg);background:color-mix(in srgb, var(--bg) 88%, transparent);padding:.9rem 1rem;text-decoration:none;transition:border-color .15s;display:block}.tool-card:hover{border-color:var(--site-accent)}.tool-card:hover .tool-ico{color:var(--site-accent)}.tool-card[aria-disabled=true]{opacity:.5;pointer-events:none}.tool-card .t{font-family:var(--font-sans);font-weight:600;display:block}.tool-card .d{color:var(--muted);margin-top:.2rem;font-size:.85rem;display:block}.tool-card .d strong{color:var(--fg);font-weight:600}.tool-card .tag{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--site-accent);font-size:.68rem}.tool-card .tool-ico{width:24px;height:24px;color:var(--muted);margin-bottom:.5rem;transition:color .15s;display:block}.tool-card .tool-ico svg{width:100%;height:100%;display:block}.site-group-title{font-family:var(--font-sans);letter-spacing:-.01em;margin:1.9rem 0 .4rem;font-size:1.05rem;font-weight:600}.site-recent[hidden]{display:none}.site-recent .site-group-title{margin-top:1rem}.hub-search-label{font-family:var(--font-sans);color:var(--muted);margin-top:1.25rem;font-size:.8rem;font-weight:600;display:block}.hub-search{border:1px solid var(--site-line-strong);border-radius:var(--radius);background:var(--bg);width:100%;min-height:48px;color:var(--fg);font:1rem var(--font-sans);margin-top:.35rem;padding:.65rem .8rem}.hub-search:focus{outline:2px solid var(--site-accent);outline-offset:1px}.tool-grid-quick{grid-template-columns:repeat(auto-fit,minmax(10rem,1fr))}.site-tool-section[hidden],[data-tool-item][hidden]{display:none!important}.tool form{margin:1.25rem 0}.field{flex-direction:column;gap:.3rem;margin:.6rem 0;display:flex}.field label{color:var(--muted);font-size:.8rem;font-family:var(--font-sans)}.tool input[type=number],.tool input[type=text],.tool input[type=search],.tool input[type=date],.tool select,.tool textarea,.btn{font-family:var(--font-sans);border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);background:var(--bg);color:var(--fg);padding:.5rem .7rem;font-size:.95rem}.tool input[type=number],.tool input[type=text],.tool input[type=search],.tool input[type=date],.tool select,.btn{min-height:var(--control-h)}.tool input[type=number],.tool input[type=text],.tool input[type=search],.tool input[type=date],.tool select{width:100%}.tool textarea{resize:vertical;width:100%}.tool input:focus,.tool select:focus,.tool textarea:focus,.btn:focus-visible{outline:2px solid var(--site-accent);outline-offset:1px}.rec-tabs{flex-wrap:wrap;gap:.4rem;margin:1rem 0 1.25rem;display:flex}.rec-card{border:1px solid var(--site-line-strong);border-radius:var(--radius);margin:.6rem 0;padding:.9rem 1rem}.rec-card-head{justify-content:space-between;align-items:center;gap:.6rem;display:flex}.rec-title{font-family:var(--font-sans);font-weight:600}.rec-chip{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--site-accent);border:1px solid var(--site-line-strong);white-space:nowrap;border-radius:999px;padding:.12rem .5rem;font-size:.68rem}.rec-sub{margin-top:.25rem;font-size:.9rem}.rec-meta{font-family:var(--font-mono);color:var(--muted);margin-top:.4rem;font-size:.75rem}.row-grid{grid-template-columns:1fr 6rem 4rem auto;align-items:end;gap:.5rem;display:grid}.row-grid .field{margin:.25rem 0}.sheet-stock-row{grid-template-columns:1.2fr 5.5rem 5.5rem 5.5rem 1.2fr 6.5rem auto}.sheet-part-row{grid-template-columns:1.3fr 5.5rem 5.5rem 4.5rem 1.2fr 6.5rem 7rem auto}.sheet-check{justify-content:flex-end}.sheet-check label{min-height:42px;color:var(--fg);align-items:center;gap:.4rem;display:flex}.btn{cursor:pointer;border-color:var(--site-accent);background:var(--site-accent);color:#fff;font-weight:600}.btn:hover{filter:brightness(1.08)}.btn-ghost{color:var(--fg);border-color:var(--site-line-strong);background:0 0}.btn-sm{min-height:30px;padding:.3rem .6rem;font-size:.8rem}.btn-row{gap:var(--gap-1);flex-wrap:wrap;align-items:center;margin:.75rem 0;display:flex}.result{border-top:1px solid var(--site-line-strong);margin-top:1.5rem;padding-top:1rem}.stat-grid{gap:var(--gap-1);grid-template-columns:repeat(auto-fit,minmax(7rem,1fr));display:grid}.stat{border:1px solid var(--site-line);border-radius:var(--radius-sm);padding:.6rem .75rem}.stat .n{font-family:var(--font-mono);font-size:1.3rem;font-weight:600}.stat .l{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-size:.72rem}.warn{color:#b4540a;font-size:.9rem}:root[data-theme=dark] .warn,:root:not([data-theme=light]) .warn{color:#f0a868}.bars{flex-direction:column;gap:.55rem;margin:1rem 0;display:flex}.bar-label{font-family:var(--font-mono);color:var(--muted);margin-bottom:.15rem;font-size:.72rem}.bar{border:1px solid var(--site-line-strong);height:30px;font-family:var(--font-mono);border-radius:4px;display:flex;overflow:hidden}.seg{color:#fff;background:var(--site-accent);white-space:nowrap;border-right:1px solid #00000038;justify-content:center;align-items:center;min-width:0;font-size:11px;display:flex;overflow:hidden}.seg:last-child{border-right:none}.seg.offcut{background:color-mix(in srgb, var(--fg) 14%, transparent);color:var(--muted)}.note-foot{color:var(--muted);margin-top:1.5rem;font-size:.8rem}.site-faq{margin-top:1.5rem}.tool-faq-item{border-top:1px solid var(--site-line);padding:.5rem 0 .1rem}.tool-faq-item summary{cursor:pointer;align-items:center;min-height:40px;font-size:.9rem;font-weight:500;display:flex}.tool-faq-item p{color:var(--muted);margin:.3rem 0 .6rem;font-size:.9rem}.calc{border-top:1px solid var(--site-line-strong);margin-top:1.75rem;padding-top:1.25rem;scroll-margin-top:1rem}.calc:first-child{border-top:none;margin-top:1rem;padding-top:0}.calc h2{margin-top:0;font-size:1.05rem}.calc-blurb{color:var(--muted);margin:.25rem 0 .6rem;font-size:.85rem}.calc-fields{gap:var(--gap-1);grid-template-columns:repeat(auto-fit,minmax(8rem,1fr));align-items:end;display:grid}.calc-fields .field{justify-content:flex-end;margin:0}.calc-result{border-top:none;margin-top:1rem;padding-top:0}.conv-grid{grid-template-columns:1fr auto 1fr;align-items:end;gap:.6rem;display:grid}.conv-swap{align-self:end;margin-bottom:.1rem}.conv-out{font-family:var(--font-mono);word-break:break-word;margin-top:1rem;font-size:1.5rem;font-weight:600}.saved-row{border-bottom:1px solid var(--site-line);justify-content:space-between;align-items:center;gap:.5rem;padding:.35rem 0;display:flex}.saved-row span{font-family:var(--font-mono);font-size:.9rem}.disclosure{color:var(--muted);border-left:2px solid var(--site-accent);margin:.75rem 0;padding-left:.6rem;font-size:.8rem}.pro-upsell{border:1px solid color-mix(in srgb, var(--fg) 18%, transparent);border-radius:var(--radius);background:color-mix(in srgb, var(--accent) 6%, var(--bg));max-width:32rem;margin:.6rem 0;padding:.9rem 1rem}.pro-upsell-lede{margin:0 0 .6rem;font-size:.9rem}.pro-upsell-plans,.pro-upsell-restore form{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.pro-upsell-btn{font-family:var(--font-sans);min-height:var(--control-h);border-radius:var(--radius-sm);cursor:pointer;border:1px solid var(--accent);background:var(--accent);color:#fff;padding:.5rem .9rem;font-size:.88rem;font-weight:600}.pro-upsell-btn:hover{filter:brightness(1.08)}.pro-upsell-btn[disabled]{opacity:.6;cursor:default}.pro-upsell-restore{margin-top:.65rem;font-size:.85rem}.pro-upsell-restore summary{cursor:pointer;color:var(--muted)}.pro-upsell-restore form{margin-top:.5rem}.pro-upsell-restore input{min-height:var(--control-h);border:1px solid color-mix(in srgb, var(--fg) 18%, transparent);border-radius:var(--radius-sm);background:var(--bg);min-width:0;color:var(--fg);font:.95rem var(--font-sans);flex:12rem;padding:.5rem .7rem}.pro-upsell-status{color:var(--muted);font-size:.8rem}.pro-upsell-dismiss{color:var(--muted);cursor:pointer;background:0 0;border:none;margin-top:.6rem;padding:.2rem 0;font-size:.8rem;display:block}.pro-upsell-note{color:var(--muted);font-size:.9rem}.vv-export-brand{display:none}@media print{.vv-export-brand{display:block}.vv-export-brand--footer{font:7pt var(--font-sans);color:#666;position:fixed;bottom:0;left:0}}.vv-export-hint{max-width:32rem;color:var(--muted);align-items:flex-start;gap:.4rem;margin:.4rem 0 0;font-size:.85rem;display:flex}.vv-export-hint a{color:var(--accent);font-weight:600}.vv-export-hint-dismiss{color:var(--muted);cursor:pointer;background:0 0;border:none;flex:none;padding:.1rem .3rem;font-size:1rem;line-height:1}.vv-nudge{border:1px solid color-mix(in srgb, var(--fg) 18%, transparent);background:color-mix(in srgb, var(--accent) 6%, var(--bg));border-radius:8px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.6rem;margin:0 0 1rem;padding:.6rem .9rem;font-size:.85rem;display:flex}.vv-nudge a{color:var(--accent);margin-left:.25rem;font-weight:600}.vv-nudge-dismiss{color:var(--muted);cursor:pointer;background:0 0;border:none;flex:none;padding:.15rem .4rem;font-size:1.1rem;line-height:1}.notepad-help{color:var(--muted);flex-wrap:wrap;align-items:center;gap:.4rem;margin:1rem 0;font-size:.85rem;display:flex}.notepad-help code{border:1px solid var(--site-line);background:color-mix(in srgb, var(--bg) 86%, transparent);border-radius:999px;padding:.18rem .45rem}.notepad-shell{grid-template-columns:minmax(0,1fr) minmax(12rem,16rem);align-items:stretch;gap:.75rem;display:grid}#calc-note{min-height:420px;font-family:var(--font-mono);white-space:pre;line-height:1.7}.notepad-results{border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--bg) 92%, transparent);min-height:420px;font-family:var(--font-mono);padding:.5rem .6rem;overflow:auto}.note-result{min-height:1.7em;color:var(--muted);border-bottom:1px solid var(--site-line);white-space:nowrap;justify-content:flex-end;align-items:center;display:flex}.note-result.ok{color:var(--fg)}.note-result.err{color:#b4540a;font-size:.8rem}:root[data-theme=dark] .note-result.err,:root:not([data-theme=light]) .note-result.err{color:#f0a868}.pad-wrap{border:1px solid var(--site-line-strong);border-radius:var(--radius);touch-action:none;background:#fff;overflow:hidden}#pad{cursor:crosshair;touch-action:none;width:100%;height:460px;display:block}.swatch{border:2px solid var(--site-line-strong);cursor:pointer;border-radius:50%;width:26px;height:26px;padding:0}.swatch.active{outline:2px solid var(--site-accent);outline-offset:2px}#transcript{width:100%;min-height:220px;font-family:var(--font-mono);border:1px solid var(--site-line-strong);background:var(--bg);color:var(--fg);resize:vertical;border-radius:6px;padding:.6rem;font-size:.95rem}.interim{color:var(--muted);min-height:1.2em;font-style:italic}.rec-dot{background:#d33;border-radius:50%;width:9px;height:9px;margin-right:.4rem;animation:1s infinite pulse;display:inline-block}@keyframes pulse{50%{opacity:.3}}.sheets{flex-direction:column;gap:1rem;margin:1rem 0;display:flex}.sheet-svg{border:1px solid var(--site-line-strong);background:#fff;border-radius:6px;width:100%;height:auto;max-height:80vh;display:block}.sheet-svg rect.part{fill:var(--site-accent);stroke:#fff;stroke-width:2px;vector-effect:non-scaling-stroke}.sheet-svg text{fill:#fff;font-family:var(--font-mono);pointer-events:none}.pdf-row{border-bottom:1px solid var(--site-line);justify-content:space-between;align-items:center;gap:.5rem;padding:.4rem 0;display:flex}.pdf-label{font-family:var(--font-mono);text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:.85rem;overflow:hidden}.pdf-ctrls{white-space:nowrap;gap:.25rem;display:flex}.dropzone{border:1.5px dashed var(--site-line-strong);border-radius:var(--radius);text-align:center;color:var(--muted);padding:1.25rem}.pdf-toolbox,.pdf-options{border:1px solid var(--site-line-strong);border-radius:var(--radius);background:color-mix(in srgb, var(--bg) 92%, transparent);padding:.9rem 1rem}.pdf-options{margin:.75rem 0}.pdf-options summary{cursor:pointer;align-items:center;min-height:44px;font-weight:600;display:flex}.pdf-range-label{color:var(--muted);align-items:center;gap:.4rem;font-size:.82rem;display:flex}.pdf-range-label input{width:8rem;min-height:var(--control-h);border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);background:var(--bg);color:var(--fg);font:.95rem var(--font-sans);padding:.5rem .7rem}#pdf-pages{gap:var(--gap-2);grid-template-columns:repeat(auto-fill,minmax(10.5rem,1fr));display:grid}.pdf-page-card{border:1px solid var(--site-line-strong);border-radius:var(--radius);background:var(--bg);cursor:grab;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:.45rem;padding:.55rem;display:grid;position:relative}.pdf-page-card.selected{border-color:var(--site-accent);box-shadow:inset 0 0 0 1px var(--site-accent)}.pdf-page-card>input{width:20px;height:20px;margin:0}.pdf-thumb{object-fit:contain;background:#e4e4df;border-radius:4px;grid-column:1/-1;width:100%;height:11rem}.pdf-page-card .pdf-label{white-space:normal;grid-column:1/-1;font-size:.72rem}.pdf-page-card .pdf-ctrls{grid-column:1/-1;grid-template-columns:repeat(4,1fr);display:grid}.pdf-page-card .pdf-ctrls button{min-width:40px;min-height:40px;padding:.25rem}@media print{header,footer,.no-print,.blueprint:before{display:none!important}body{max-width:none;padding:0}.tool input,.tool select{border-color:#999}.btn,.btn-row,.calc:not([data-touched]){display:none!important}.calc-blurb{display:none}}@media (width<=760px){.notepad-shell{grid-template-columns:1fr}#calc-note,.notepad-results{min-height:280px}.row-grid,.sheet-stock-row,.sheet-part-row{border-bottom:1px solid var(--site-line);grid-template-columns:repeat(2,minmax(0,1fr));align-items:end;padding:.55rem 0}.sheet-stock-row .field:first-child,.sheet-part-row .field:first-child{grid-column:1/-1}.row-grid>.r-del,.row-grid>.s-del{min-height:44px}.tool input[type=text],.tool input[type=number],.tool input[type=search],.tool textarea,.tool select{font-size:16px}}@media (pointer:coarse){.tool button,.tool .btn,.tool select,.tool input:not([type=checkbox]):not([type=radio]):not([type=range]):not([type=file]){min-height:44px}.tool input[type=checkbox],.tool input[type=radio]{width:22px;height:22px}}.blueprint .seg-toggle{border:1px solid var(--rule);border-radius:var(--radius);margin:.25rem 0 1rem;display:inline-flex;overflow:hidden}.blueprint .seg-toggle a{font-size:.9rem;font-family:var(--font-sans);color:var(--muted);background:var(--bg);padding:.45rem 1rem;text-decoration:none}.blueprint .seg-toggle a+a{border-left:1px solid var(--rule)}.blueprint .seg-toggle a:hover{color:var(--fg)}.blueprint .seg-toggle a.active{background:var(--fg);color:var(--bg);font-weight:600}.store-controls{flex-wrap:wrap;align-items:center;gap:.5rem .75rem;margin:.75rem 0 1.25rem;display:flex}.store-controls label.btn{cursor:pointer}.store-sync{font-family:var(--font-sans);cursor:pointer;align-items:center;gap:.35rem;font-size:.85rem;display:inline-flex}.store-status{font:.72rem var(--font-mono);color:var(--muted)}.np-wrap{border:1px solid var(--site-line-strong);border-radius:var(--radius);background:var(--bg);min-height:360px;position:relative;overflow:hidden}.np-overlay,.tool textarea.np-input{font-family:var(--font-mono);white-space:pre;box-sizing:border-box;border:0;width:100%;height:360px;margin:0;padding:.75rem .9rem;font-size:.92rem;line-height:1.6;overflow:auto}.np-overlay{color:var(--fg);pointer-events:none;z-index:1;position:absolute;inset:0}.np-row{min-height:1.6em}.tool textarea.np-input{z-index:2;color:#0000;caret-color:var(--fg);resize:none;background:0 0;position:relative}.np-wrap.tall .np-overlay,.np-wrap.tall .tool textarea.np-input,.tool .np-wrap.tall textarea.np-input{height:720px}.pad-saved-row{margin-top:.4rem}.pad-saved-row .pad-saved-select{flex:12rem;width:auto;max-width:20rem}.pad-saved-row #pad-save-name{flex:12rem;max-width:20rem}@media print{.np-wrap{border:0;min-height:0}.tool textarea.np-input{display:none}.np-overlay{height:auto;padding:0;position:static;overflow:visible}}.tool textarea.np-input::selection{background:color-mix(in srgb, var(--site-accent) 35%, transparent)}.tok-var{color:var(--site-accent);font-weight:600}.tok-unit{color:var(--muted)}.tok-comment{color:var(--muted);font-style:italic}.pad-result{color:var(--accent);font-weight:600}.pad-result.pad-error{color:color-mix(in srgb, red 55%, var(--muted));font-style:italic;font-weight:400}.pad-confirm{align-items:center;gap:var(--gap-1);border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--accent) 8%, var(--bg));flex-wrap:wrap;margin:.6rem 0;padding:.5rem .7rem;font-size:.85rem;display:flex}.pad-saved-select{font-family:var(--font-sans);min-height:var(--control-h);border:1px solid var(--site-line-strong);border-radius:var(--radius-sm);background:var(--bg);color:var(--fg);padding:.5rem .7rem;font-size:.95rem}@media (width<=760px){.np-overlay,.tool textarea.np-input{height:300px;font-size:.85rem}}