@import url("/fonts.css");:root{--paper:#f6f3e9;--white:#fffefa;--ink:#302d27;--muted:#776f60;--line:#ded8c9;--accent:#d56b38;--green:#276454;--display:"Iowan Old Style","Palatino Linotype","Songti SC",Georgia,serif;--text:"Avenir Next","Trebuchet MS","PingFang SC","Microsoft YaHei",sans-serif;--mono:"SFMono-Regular",Consolas,monospace}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--text);font-size:15px;line-height:1.6}button,input,select{font:inherit}a{color:inherit;text-decoration:none}a,button,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}a,button{touch-action:manipulation}svg{display:block;max-width:100%}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}input:focus-visible,select:focus-visible{outline:2px solid var(--green);outline-offset:2px}::selection{background:#e8b89c;color:#302d27}.shell{width:min(1240px,calc(100% - 72px));margin-inline:auto}.skip-link{position:fixed;top:-80px;left:20px;z-index:100;background:var(--ink);color:white;padding:10px 18px}.skip-link:focus{top:10px}.site-header{border-bottom:1px solid var(--line);background:var(--paper)}.header-inner{display:flex;min-height:86px;align-items:center;gap:35px}.brand{display:inline-flex;align-items:center;gap:11px;font-size:23px;letter-spacing:-.06em;font-weight:800}.brand>span>span{font-weight:400}.header-inner nav{display:flex;gap:27px;margin-left:auto;font-size:12px;font-weight:600}.header-inner nav a{padding-block:12px}.header-inner nav a:hover,.header-inner nav a[aria-current]{color:var(--accent)}.language-link{border:1px solid var(--line);padding:8px 12px;font-size:12px;white-space:nowrap}.eyebrow{font-size:10px;letter-spacing:.14em;text-transform:uppercase;font-weight:750;display:flex;align-items:center;gap:9px;color:var(--green)}.eyebrow i{display:block;width:7px;height:7px;background:var(--accent);border-radius:50%}.hero{display:grid;grid-template-columns:1.1fr 1fr;column-gap:44px;padding-top:57px;align-items:center}.hero h1{font-family:var(--display);font-size:clamp(43px,4.6vw,65px);font-weight:500;line-height:1.13;letter-spacing:-.04em;margin:23px 0 20px}.hero h1>span{display:block}.hero h1 .accent{color:var(--green)}.hero-copy>p{max-width:540px;font-size:15px;line-height:1.85;color:var(--muted)}.hero-actions{display:flex;align-items:center;gap:20px;margin-top:27px}.hero-actions>span{font-size:10px;color:var(--muted)}.button{display:inline-flex;align-items:center;justify-content:center;gap:25px;padding:12px 20px;border:1px solid transparent;border-radius:2px;font-size:12px;font-weight:700;min-height:44px;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.button--dark{background:var(--green);color:var(--white)}.button--dark:hover{background:#194d3f}.button--outline{border-color:var(--line);background:transparent;color:var(--ink)}.button--outline:hover{background:#ebe6d7}.bench-illustration{position:relative;aspect-ratio:1.35;display:flex;justify-content:center;flex-direction:column;min-width:0;border:1px solid var(--line);background-color:#efebdf;background-image:linear-gradient(#e4dfd2 1px,transparent 0),linear-gradient(90deg,#e4dfd2 1px,transparent 0);background-size:23px 23px;transform:rotate(1.2deg);margin:12px 0}.bench-illustration svg{width:100%;padding:8px}.drawing-tag{position:absolute;top:14px;left:17px;font-family:var(--mono);font-size:9px;letter-spacing:.08em;color:#8a806b}.drawing-label{position:absolute;bottom:16px;left:20px;display:flex;gap:8px;align-items:center;font-size:10px;color:#655d4e}.drawing-label i{width:7px;height:7px;background:var(--green)}.hero-footnote{display:flex;align-items:center;justify-content:space-between;grid-column:1/-1;padding:23px 0;margin-top:24px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:9px;color:var(--muted);letter-spacing:.05em}.hero-footnote span:last-child{font-size:23px;color:var(--accent)}.workbench{margin-top:43px;border:1px solid var(--line);background:var(--white);box-shadow:0 12px 40px #302d2705;scroll-margin-top:22px}.workbench__top{display:flex;justify-content:space-between;align-items:center;padding:18px 26px}.unit-switch{display:flex;border:1px solid var(--line);padding:3px;gap:2px}.unit-switch button{font-family:var(--mono);font-size:11px;border:0;background:transparent;padding:4px 13px;color:var(--muted)}.unit-switch button[aria-pressed=true]{background:var(--ink);color:var(--white)}.tool-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line);background:#f9f7f0}.tool-tabs>a,.tool-tabs>button{text-align:left;display:flex;align-items:center;gap:11px;border:0;border-right:1px solid var(--line);background:transparent;font-size:12px;color:var(--muted);padding:19px 25px;font-weight:600}.tool-tabs>:last-child{border-right:0}.tool-tabs .active{background:var(--white);color:var(--ink);box-shadow:inset 0 -3px var(--accent)}.tool-tabs small{font-family:var(--mono);font-size:9px;color:var(--accent)}.tool-tabs>a:hover,.tool-tabs>button:hover{background:#f0ecdf}.workbench__body{display:grid;grid-template-columns:minmax(0,1.13fr) minmax(0,.87fr)}.input-panel{padding:28px 30px;border-right:1px solid var(--line)}.input-panel__heading{display:flex;justify-content:space-between;align-items:center;gap:10px}.input-panel h2{font-size:17px;letter-spacing:-.02em;margin:0}.text-button{border:0;padding:5px 0;background:transparent;color:var(--green);font-size:11px}.row-section{margin-top:24px}.row-section h3{font-size:13px;margin:0}.row-section>p{font-size:11px;color:var(--muted);margin:5px 0 13px;line-height:1.8}.input-row{display:grid;grid-template-columns:70px minmax(70px,1fr) minmax(55px,.6fr) 27px;align-items:end;gap:9px;margin-top:10px}.input-row--stock{grid-template-columns:27px minmax(70px,1fr) minmax(55px,.6fr) 27px}.row-index{align-self:center;font-family:var(--mono);font-size:11px;color:#9a8b70;padding-top:20px}.field{display:flex;flex-direction:column;gap:5px;min-width:0}.field>span:first-child{font-size:10px;font-weight:600;color:var(--muted)}.field__control{display:flex;align-items:center;border:1px solid var(--line);background:var(--white);min-height:42px;min-width:0}.field__control:focus-within{border-color:var(--green);box-shadow:0 0 0 2px #27645418}.field__control input{width:100%;min-width:0;border:0;background:transparent;color:var(--ink);font-family:var(--mono);font-size:13px;padding:9px 10px}.field__control input:focus-visible{outline:0}.field__control small{padding-right:10px;font-size:10px;color:#a39680}.field select{width:100%;height:42px;border:1px solid var(--line);background:var(--white);color:var(--ink);padding:8px 10px;font-size:12px}.remove{height:42px;border:0;background:transparent;color:#a18d76;font-size:22px;line-height:1}.remove:hover:not(:disabled){color:var(--accent)}.add-button{border:1px dashed #c8c0ac;background:transparent;color:var(--green);padding:7px 11px;font-size:10px;margin-top:13px}.add-button:hover{background:#f2f0e8}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.cut-settings{border-top:1px solid var(--line);padding-top:20px}.cut-settings,.main-fields{margin-top:25px}.local-note{font-size:10px;color:var(--muted);margin:23px 0 0}.local-note span{color:var(--green)}.results-panel{padding:30px;background:#f4f1e7;min-width:0}.main-result{padding:15px 0 22px;border-bottom:1px solid var(--line)}.main-result>strong{display:block;font-family:var(--display);font-weight:500;font-size:76px;letter-spacing:-.05em;line-height:1.3;color:var(--green);overflow-wrap:anywhere}.main-result>strong>small{font-family:var(--text);font-weight:500;font-size:13px;margin-left:10px;letter-spacing:0;white-space:nowrap}.main-result>span{display:block;color:var(--muted);font-size:11px}.result-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px;padding:23px 0}.result-stat{display:flex;flex-direction:column;gap:5px;min-width:0}.result-stat>span{font-size:10px;color:var(--muted)}.result-stat>strong{font-family:var(--mono);font-weight:500;font-size:18px;overflow-wrap:anywhere;line-height:1.45}.utilization-track{background:#dfdacb;height:5px;overflow:hidden}.utilization-track i{height:100%;display:block;background:var(--green)}.fine-print{font-size:10px;line-height:1.85;color:var(--muted);margin:18px 0}.result-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}.result-actions .button{padding-inline:16px;font-size:11px}.unplaced{background:#fae7dc;padding:14px 16px;color:#8c482c;margin-top:18px;border-left:2px solid var(--accent)}.unplaced h3{margin:0;font-size:12px}.unplaced p{font-family:var(--mono);font-size:10px;overflow-wrap:anywhere}.unplaced small{font-size:10px;line-height:1.7;display:block}.result-error{padding:25px 10px;color:#924e2f;font-size:12px;line-height:1.9}.result-error>span{display:grid;place-items:center;background:#f6ddc9;width:34px;height:34px;font-size:20px;border-radius:50%;margin-bottom:15px}.cut-layout{border-top:1px solid var(--line);padding:27px 30px}.cut-layout__heading{display:flex;align-items:center;justify-content:space-between}.cut-layout__heading h3{font-size:16px;margin:0}.cut-layout__heading>span{font-family:var(--mono);font-size:12px;color:var(--muted)}.legend{display:flex;flex-wrap:wrap;gap:18px;font-size:9px;color:var(--muted);margin:13px 0 25px}.legend>span{display:flex;align-items:center;gap:6px}.legend i{width:8px;height:8px}.cut-bar{page-break-inside:avoid;break-inside:avoid;margin-top:17px}.cut-bar__caption{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:10px;color:var(--muted);margin-bottom:7px}.cut-bar__caption strong{font-family:var(--mono);font-weight:500;color:var(--ink)}.cut-bar>svg{width:100%;height:auto}.cut-bar__list{display:flex;flex-wrap:wrap;gap:9px 15px;font-family:var(--mono);font-size:9px;color:var(--muted);margin:2px 0 20px}.cut-bar__list>span{display:inline-flex;align-items:center;gap:5px}.cut-bar__list i{width:5px;height:5px}.method-section{display:grid;grid-template-columns:1fr 1fr;gap:100px;padding-block:85px}.method-section h2{font-family:var(--display);font-weight:500;font-size:39px;line-height:1.3;white-space:pre-line;letter-spacing:-.04em;margin:18px 0}.method-section>div>p{font-size:13px;color:var(--muted);max-width:400px}.method-section ol{list-style:none;margin:0;padding:0}.method-section li{display:flex;gap:21px;border-top:1px solid var(--line);padding:20px 0}.method-section li>strong{font-family:var(--mono);font-size:10px;color:var(--accent);padding-top:4px}.method-section h3{font-size:13px;margin:0 0 5px}.method-section li p{font-size:11px;color:var(--muted);margin:0}.tool-links{padding-bottom:70px}.section-heading{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:22px}.section-heading>span:last-child{font-family:var(--mono);font-size:10px;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.tool-card{border:1px solid var(--line);padding:22px 24px;display:flex;flex-direction:column;transition:transform .2s,background .2s}.tool-card:hover{background:#fffdf5;transform:translateY(-4px)}.tool-card__number{display:flex;justify-content:space-between;font-family:var(--mono);font-size:11px;color:var(--accent)}.tool-card__number b{font-size:18px;font-weight:400}.tool-card h3{font-family:var(--display);font-size:23px;line-height:1.35;font-weight:500;letter-spacing:-.03em;margin:22px 0 8px}.tool-card p{font-size:12px;color:var(--muted);margin:0 0 22px}.tool-card__cta{font-size:10px;color:var(--green);margin-top:auto}.site-footer{background:#2d352e;color:#f6f3e9;padding:34px 0 20px}.footer-main{display:flex;justify-content:space-between;gap:30px;align-items:center}.footer-main .brand{font-size:21px;letter-spacing:-.04em}.footer-main .brand svg path:nth-child(2){stroke:#2d352e}.footer-main p{font-size:11px;color:#b7beb0;margin:12px 0}.footer-main nav{display:flex;gap:28px;font-size:11px;color:#c8cebf}.footer-main nav a:hover{color:white}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #ffffff25;padding-top:18px;margin-top:25px;font-size:9px;color:#adb7a7}.tool-hero{padding-top:35px}.back-link{display:block;width:max-content;font-size:11px;color:var(--muted);margin-bottom:28px}.tool-hero h1{font-family:var(--display);font-weight:500;font-size:clamp(34px,4.2vw,53px);letter-spacing:-.04em;margin:16px 0 14px;line-height:1.25}.tool-hero>p{color:var(--muted);max-width:720px;font-size:14px}.tool-hero+.workbench{margin-top:32px}.education{display:grid;grid-template-columns:1fr .9fr;gap:85px;padding-block:65px}.education h2{font-family:var(--display);font-size:28px;font-weight:500;margin:15px 0}.education li,.education p{font-size:13px;line-height:1.9;color:var(--muted)}.education ol{padding-left:20px}.education li{padding:4px 0}.example{border-left:2px solid var(--accent);background:#ece8dc;padding:17px 22px;margin:24px 0 32px}.example>span{font-size:10px;color:var(--green);font-weight:700}.example p{margin:8px 0 0}.faq details{border-bottom:1px solid var(--line);padding-block:17px}.faq summary{cursor:pointer;list-style:none;font-size:12px;font-weight:600;display:flex;justify-content:space-between;gap:15px}.faq summary::-webkit-details-marker{display:none}.faq summary>span{color:var(--accent);flex-shrink:0}.faq details[open] summary>span{transform:rotate(45deg)}.faq details p{font-size:12px;margin:15px 0 0}.info-page{max-width:860px;padding:20px 0 70px}.info-page section{display:flex;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}.info-page section>span{font-size:11px;color:var(--accent);font-family:var(--mono);padding-top:5px}.info-page p{margin:0;font-size:14px;line-height:1.95;color:var(--muted)}.source-link{font-size:12px;text-decoration:underline;display:block;margin-top:25px;color:var(--green)}@media(min-width:1500px){.hero h1{font-size:65px}}@media(max-width:1100px){.header-inner{gap:20px}.header-inner nav{gap:15px;font-size:10px}.hero{column-gap:28px}.hero-actions{gap:14px;align-items:flex-start;flex-direction:column}.hero h1{font-size:48px}.input-panel,.results-panel{padding:24px}.input-panel__heading{align-items:flex-start;flex-direction:column}.method-section{gap:50px}.tool-tabs>a,.tool-tabs>button{padding:15px 17px;font-size:11px}.education{gap:45px}}@media(max-width:800px){.shell{width:calc(100% - 36px)}.header-inner{min-height:72px;justify-content:space-between}.header-inner nav{display:none}.hero{padding-top:36px;column-gap:20px;grid-template-columns:1fr 1fr}.hero h1{font-size:38px}.hero-copy>p{font-size:12px}.hero-actions>span{font-size:9px}.drawing-label{bottom:8px;font-size:8px}.drawing-tag{font-size:7px;top:8px;left:10px}.workbench__body{grid-template-columns:1fr}.input-panel{border-right:0;border-bottom:1px solid 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svg{max-height:230px}.drawing-label{bottom:9px;left:14px}.drawing-tag{top:12px;font-size:8px}.hero-footnote{margin-top:8px;padding-block:14px;font-size:8px}.workbench{margin-top:27px}.workbench__top{padding:15px 17px}.tool-tabs>a,.tool-tabs>button{padding:13px 8px;font-size:10px;line-height:1.5;flex-direction:column;align-items:flex-start;gap:5px}.tool-tabs small{font-size:8px}.input-panel{padding:21px 16px}.input-panel h2{font-size:15px}.text-button{font-size:10px;white-space:nowrap}.input-row{grid-template-columns:53px minmax(60px,1fr) 67px 20px;gap:7px}.input-row--stock{grid-template-columns:21px minmax(60px,1fr) 67px 20px}.field__control input{font-size:12px;padding-inline:7px}.field__control small{font-size:9px;padding-right:6px}.results-panel{padding:24px 18px}.result-stats{grid-template-columns:1fr 1fr;gap:17px 12px}.result-stat>strong{font-size:17px}.cut-layout{padding:22px 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