:root{--graphite:#23262a;--galvanized:#f1f3f3;--galvanized-surface:#e3e7e8;--chalk:#1c57b0;--crayon:#b8352a;--birch:#e7d4aa;--sawdust:#a99c83;--bg:var(--galvanized);--surface:var(--galvanized-surface);--text:var(--graphite);--muted:#596168;--border:#bfc7c9;--accent:var(--chalk);--accent-text:#fff;--danger:var(--crayon);--focus:#1c57b0;color-scheme:light dark;font-family:Barlow,Arial,sans-serif}@media (prefers-color-scheme:dark){:root{--graphite:#e8eae7;--galvanized:#17191b;--galvanized-surface:#202326;--chalk:#7faaf0;--crayon:#ff8073;--birch:#d6bf8c;--sawdust:#6f675a;--bg:var(--galvanized);--surface:var(--galvanized-surface);--text:var(--graphite);--muted:#b3bab8;--border:#485055;--accent:var(--chalk);--accent-text:#17191b;--danger:var(--crayon);--focus:#7faaf0}}*{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{background:var(--bg);color:var(--text);overflow-wrap:anywhere;margin:0;line-height:1.55}a{color:var(--accent);text-underline-offset:3px}button,input,select,textarea{font:inherit}button,.button{border:1px solid var(--chalk);background:var(--chalk);min-height:44px;color:var(--accent-text);cursor:pointer;border-radius:3px;padding:9px 14px;font-weight:600}button:hover,.button:hover{filter:brightness(1.08)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--focus);outline-offset:2px}button.secondary,.button.secondary{color:var(--text);border-color:var(--border);background:0 0}button.link-button{min-height:0;color:var(--accent);background:0 0;border:0;padding:0;text-decoration:underline}input,select,textarea{border:1px solid var(--border);background:var(--surface);max-width:100%;min-height:44px;color:var(--text);border-radius:3px;padding:9px 10px}input[type=checkbox]{width:20px;min-height:20px;accent-color:var(--chalk)}input[aria-invalid=true]{border-color:var(--danger)}textarea{resize:vertical;width:100%;min-height:120px}.site-header{z-index:10;background:color-mix(in srgb, var(--bg) 94%, transparent);border-bottom:1px solid var(--border);backdrop-filter:blur(8px);padding:10px max(16px,50vw - 590px);position:sticky;top:0}.header-line{justify-content:space-between;align-items:baseline;gap:18px;display:flex}.brand{color:var(--text);letter-spacing:.02em;align-items:center;gap:8px;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{border:1px solid var(--chalk);width:26px;height:26px;color:var(--chalk);place-items:center;font-family:Plex Mono,monospace;display:inline-grid}.header-note{color:var(--muted);font-family:Plex Mono,monospace;font-size:12px}.site-header nav{white-space:nowrap;gap:16px;padding-top:7px;display:flex;overflow-x:auto}.site-header nav a{color:var(--muted);font-size:14px;text-decoration:none}.site-header nav a[aria-current=page]{color:var(--text);font-weight:600}main{max-width:1180px;margin:0 auto;padding:24px 16px 56px}.site-footer{border-top:1px solid var(--border);color:var(--muted);padding:22px max(16px,50vw - 590px);font-size:14px}.tool-legal nav{flex-wrap:wrap;gap:14px;margin:8px 0;display:flex}h1,h2,h3{letter-spacing:-.02em;line-height:1.15}h1{max-width:18ch;margin:0 0 8px;font-size:clamp(26px,4vw,42px)}h2{margin-top:42px;font-size:25px}h3{font-size:19px}p{max-width:76ch}.mono,.number,.stats strong,.dimension,.cut-list,.price{font-variant-numeric:tabular-nums;font-family:Plex Mono,ui-monospace,monospace}.eyebrow{color:var(--chalk);letter-spacing:.1em;text-transform:uppercase;margin:0 0 8px;font:600 12px/1.2 Plex Mono,monospace}.lede{color:var(--muted);margin:0 0 20px;font-size:18px}.tool-header{margin-bottom:18px}.tool-shell{grid-template-columns:minmax(300px,.82fr) minmax(0,1.18fr);align-items:start;gap:18px;display:grid}.tool-panel,.result-panel,.support-panel{border-top:3px solid var(--chalk);background:var(--surface);padding:16px}.tool-panel h2,.result-panel h2{margin:0 0 12px;font-size:20px}.toolbar,.button-row,.preset-row,.inline-fields{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.toolbar{margin:0 0 14px}.toolbar>label,.inline-fields>label{min-width:110px;color:var(--muted);gap:4px;font-size:13px;display:grid}.toolbar>label input,.toolbar>label select{width:100%}.table-scroll{overflow-x:auto}.parts-table,.stock-table,.bf-table{border-collapse:collapse;width:100%;font-size:13px}.parts-table th,.parts-table td,.stock-table th,.stock-table td,.bf-table th,.bf-table td{border-bottom:1px solid var(--border);text-align:left;vertical-align:middle;padding:6px 4px}.parts-table th,.stock-table th,.bf-table th{color:var(--muted);letter-spacing:.04em;text-transform:uppercase;font:600 11px Plex Mono,monospace}.parts-table input,.stock-table input,.parts-table select,.stock-table select{width:100%;min-width:68px;min-height:40px;padding:7px}.parts-table .part-name,.stock-table .stock-name{min-width:130px}.section-label{justify-content:space-between;align-items:baseline;gap:10px;margin:18px 0 6px;display:flex}.section-label h3{margin:0;font-size:16px}.help{color:var(--muted);font-size:13px}.error-text{min-width:120px;color:var(--danger);font-size:12px}.result-head{justify-content:space-between;align-items:start;gap:12px;display:flex}.status-line{color:var(--muted);margin:0 0 12px;font-size:14px}.stats{background:var(--border);border:1px solid var(--border);grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:12px 0 16px;display:grid}.stat{background:var(--bg);min-height:70px;padding:9px}.stat small{color:var(--muted);font-size:12px;display:block}.stat strong{margin-top:4px;font-size:18px;display:block}.diagram-strip{gap:14px;display:grid}.diagram-wrap{border:1px solid var(--border);background:var(--bg);padding:12px;position:relative}.diagram-wrap h3{justify-content:space-between;margin:0 0 8px;font-size:15px;display:flex}.sheet-svg{width:100%;height:auto;min-height:160px;display:block;overflow:visible}.sheet-svg .piece{fill:var(--birch);stroke:var(--graphite);stroke-width:.45px;cursor:pointer;transition:stroke .15s,stroke-width .15s}.sheet-svg .piece:hover,.sheet-svg .piece.selected{stroke:var(--chalk);stroke-width:1.5px}.sheet-svg .waste{fill:url(#hatch);stroke:var(--sawdust);stroke-width:.4px}.sheet-svg text{fill:var(--graphite);pointer-events:none;font-family:Plex Mono,monospace;font-size:2.8px}.part-detail{min-height:42px;color:var(--muted);border-left:3px solid var(--chalk);padding:8px;font-size:13px}.result-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px;display:grid}.result-grid>section{border-top:1px solid var(--border);padding-top:10px}.result-grid h3{margin:0 0 7px;font-size:16px}.clean-list{margin:0;padding-left:19px}.clean-list li{margin:4px 0}.cut-list{font-size:13px}.disclaimer{border-left:3px solid var(--crayon);color:var(--muted);margin:16px 0 0;padding:10px;font-size:13px}.compare-table{border-collapse:collapse;width:100%;font-size:13px}.compare-table th,.compare-table td{border-bottom:1px solid var(--border);text-align:left;padding:7px}.shop-pack{border-top:3px solid var(--crayon);margin-top:20px;padding-top:14px}.shop-pack h2{margin:0 0 6px;font-size:20px}.shop-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.shop-grid label{color:var(--muted);gap:4px;font-size:13px;display:grid}.shop-grid input,.shop-grid select{width:100%}.pack-preview{border:1px dashed var(--crayon);margin-top:12px;padding:12px}.pack-items{grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;display:grid}.pack-item{background:var(--bg);border-top:2px solid var(--crayon);min-height:70px;padding:8px;font-size:13px}.content-section{max-width:900px;margin:38px auto 0}.content-section h2{margin-top:0}.examples-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.example{border:1px solid var(--border);background:var(--surface);flex-direction:column;justify-content:space-between;min-height:145px;padding:14px;display:flex}.example h3{margin:0 0 7px}.example p{color:var(--muted);margin:0 0 12px;font-size:14px}.step-list{counter-reset:steps;grid-template-columns:repeat(3,1fr);gap:14px;padding:0;list-style:none;display:grid}.step-list li{counter-increment:steps;border-top:2px solid var(--chalk);padding-top:10px}.step-list li:before{content:counter(steps, decimal-leading-zero);color:var(--chalk);margin-bottom:6px;font:600 13px Plex Mono,monospace;display:block}details{border-top:1px solid var(--border);padding:10px 0}summary{cursor:pointer;font-weight:600}.family-links{flex-wrap:wrap;gap:10px 18px;display:flex}.support-table{border-collapse:collapse;width:100%;margin:18px 0}.support-table th,.support-table td{border:1px solid var(--border);text-align:left;padding:9px}.support-table th{background:var(--surface)}.bar-chart{border-left:1px solid var(--border);border-bottom:1px solid var(--border);align-items:end;gap:14px;min-height:180px;padding:16px 12px 0;display:flex}.bar{justify-items:center;gap:5px;width:54px;display:grid}.bar i{width:38px;height:var(--bar);background:var(--chalk);display:block}.bar span{font:12px Plex Mono,monospace}.legal-copy{max-width:780px}@media (width<=760px){main{padding:18px 12px 40px}.header-note{display:none}.tool-shell{flex-direction:column;display:flex}.tool-panel,.result-panel{width:100%;padding:12px}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}.shop-grid,.examples-grid,.step-list{grid-template-columns:1fr}.pack-items{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-shell .tool-panel{order:1}.result-panel{order:2}.parts-table,.stock-table{font-size:12px}.parts-table th:nth-child(n+5),.parts-table td:nth-child(n+5){min-width:70px}h1{font-size:28px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}.sheet-svg text{fill:#23262a;font-weight:600}.sheet-svg .piece{stroke:#23262a;stroke-width:2px}.diagram-part.selected rect{stroke:var(--chalk);stroke-width:8px}.diagram-strip{overflow:auto}.error-text:empty{display:none}.file-button{align-items:center;gap:6px;font-size:13px;display:inline-flex}.file-button input{max-width:220px;min-height:32px;padding:4px;font-size:12px}.toolbar-actions{margin-bottom:10px}.tool-header h1{max-width:30ch;font-size:clamp(25px,3vw,36px)}.diagram-wrap{overflow:auto}.tool-shell>*{min-width:0}.sheet-svg{overflow:hidden}.shop-grid input[type=checkbox]{width:20px}.diagram-part path{pointer-events:none}.mobile-summary{display:none}.pack-item img{object-fit:contain;background:#fff;width:100%;height:130px;margin:8px 0;display:block}.pack-item a{display:block}@media (width<=600px){main{padding-top:16px}.header-note{display:none}.tool-header .lede{margin-bottom:10px;font-size:15px;line-height:1.35}.tool-header h1{font-size:26px;line-height:1.1}.mobile-summary{background:var(--surface);border-top:3px solid var(--chalk);margin-bottom:12px;padding:10px;display:block}.mobile-summary>div:first-child{justify-content:space-between;align-items:center;gap:8px;font-size:12px;display:flex}.mobile-summary label{color:var(--muted);align-items:center;gap:6px;display:flex}.mobile-summary input{width:72px;min-height:36px;padding:4px;font-size:13px}.mobile-summary svg{object-fit:contain;width:100%;height:110px;min-height:110px;margin-top:8px}.toolbar-actions{gap:6px}.file-button input{max-width:170px}.pack-item img{height:170px}}.board-svg{width:100%;height:auto;min-height:32px;margin:8px 0 16px;display:block}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/barlow-vietnamese-400-normal.Dpl4UHAZ.woff2)format("woff2"),url(/_astro/barlow-vietnamese-400-normal.BFeobeCK.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/barlow-latin-ext-400-normal.HxX4XjxC.woff2)format("woff2"),url(/_astro/barlow-latin-ext-400-normal.CvBsJvxq.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/barlow-latin-400-normal.qiz4-Cze.woff2)format("woff2"),url(/_astro/barlow-latin-400-normal.fsAxiSwU.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/barlow-vietnamese-500-normal.zTViEIzf.woff2)format("woff2"),url(/_astro/barlow-vietnamese-500-normal.GNfB7rCE.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/barlow-latin-ext-500-normal.DOaysfXq.woff2)format("woff2"),url(/_astro/barlow-latin-ext-500-normal.CJPcKP2Q.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/barlow-latin-500-normal.BPAOfeC8.woff2)format("woff2"),url(/_astro/barlow-latin-500-normal.C1h8hMer.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/barlow-vietnamese-600-normal.DcjprdFV.woff2)format("woff2"),url(/_astro/barlow-vietnamese-600-normal.CA_GiK2e.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/barlow-latin-ext-600-normal.B8NK_A3D.woff2)format("woff2"),url(/_astro/barlow-latin-ext-600-normal.DMVRjfRT.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Barlow;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/barlow-latin-600-normal.DILqtrty.woff2)format("woff2"),url(/_astro/barlow-latin-600-normal.CNwfPWQD.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-cyrillic-ext-400-normal.xuaO2J-f.woff2)format("woff2"),url(/_astro/ibm-plex-mono-cyrillic-ext-400-normal.DMdlQ8Kv.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-cyrillic-400-normal.BSMlKf0J.woff2)format("woff2"),url(/_astro/ibm-plex-mono-cyrillic-400-normal.CEL4l2ZJ.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-vietnamese-400-normal.BulugwFq.woff2)format("woff2"),url(/_astro/ibm-plex-mono-vietnamese-400-normal.DDuiU_S-.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-latin-ext-400-normal.BmRBH3aV.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-ext-400-normal.D3D2R8hC.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-latin-400-normal.DMJ8VG8y.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-400-normal.CvHOgSBP.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-mono-cyrillic-ext-500-normal.BqneJy0T.woff2)format("woff2"),url(/_astro/ibm-plex-mono-cyrillic-ext-500-normal.BIfNGwUT.woff)format("woff");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-mono-cyrillic-500-normal.Bq9vWWag.woff2)format("woff2"),url(/_astro/ibm-plex-mono-cyrillic-500-normal.Ael50iVv.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-mono-vietnamese-500-normal.DZ4AoWbu.woff2)format("woff2"),url(/_astro/ibm-plex-mono-vietnamese-500-normal.C8zxqsMH.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-mono-latin-ext-500-normal.CAhNIIs5.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-ext-500-normal.CZ70TYgx.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-mono-latin-500-normal.DSY6xOcd.woff2)format("woff2"),url(/_astro/ibm-plex-mono-latin-500-normal.CB9ihrfo.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}