@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-cyrillic-ext-400-normal.g30qAdWV.woff2)format("woff2"),url(/_astro/ibm-plex-sans-cyrillic-ext-400-normal.Dsrv2Tcn.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 Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-cyrillic-400-normal.DZqxrq2p.woff2)format("woff2"),url(/_astro/ibm-plex-sans-cyrillic-400-normal.BTotfTJu.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-greek-400-normal._efipK4i.woff2)format("woff2"),url(/_astro/ibm-plex-sans-greek-400-normal.D9ESIMu3.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-vietnamese-400-normal.DG4YqDda.woff2)format("woff2"),url(/_astro/ibm-plex-sans-vietnamese-400-normal.fK1oJ5dG.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 Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-latin-ext-400-normal.C5H60-Va.woff2)format("woff2"),url(/_astro/ibm-plex-sans-latin-ext-400-normal.RBey6euL.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 Sans;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-sans-latin-400-normal.CDDApCn2.woff2)format("woff2"),url(/_astro/ibm-plex-sans-latin-400-normal.CYLoc0-x.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 Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-sans-cyrillic-ext-500-normal.Cs5J6C77.woff2)format("woff2"),url(/_astro/ibm-plex-sans-cyrillic-ext-500-normal.DB5PtV2g.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 Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-sans-cyrillic-500-normal.CocWQlwt.woff2)format("woff2"),url(/_astro/ibm-plex-sans-cyrillic-500-normal.ByOcLdNv.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-sans-greek-500-normal.JMMifIXV.woff2)format("woff2"),url(/_astro/ibm-plex-sans-greek-500-normal.CuWXN6rf.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-sans-vietnamese-500-normal.e4dixQRQ.woff2)format("woff2"),url(/_astro/ibm-plex-sans-vietnamese-500-normal.BEb3_waV.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 Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-sans-latin-ext-500-normal.DakdToA3.woff2)format("woff2"),url(/_astro/ibm-plex-sans-latin-ext-500-normal.D0aIdm-b.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 Sans;font-style:normal;font-display:swap;font-weight:500;src:url(/_astro/ibm-plex-sans-latin-500-normal.6ng42L7E.woff2)format("woff2"),url(/_astro/ibm-plex-sans-latin-500-normal.BgVn5rGT.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 Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-cyrillic-ext-600-normal.DUMzJB7m.woff2)format("woff2"),url(/_astro/ibm-plex-sans-cyrillic-ext-600-normal.Bz0x94Yp.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 Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-cyrillic-600-normal.71GNu3SW.woff2)format("woff2"),url(/_astro/ibm-plex-sans-cyrillic-600-normal.BGq0mW3O.woff)format("woff");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-greek-600-normal.DzTrcv_p.woff2)format("woff2"),url(/_astro/ibm-plex-sans-greek-600-normal.D-CqTdkO.woff)format("woff");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:IBM Plex Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-vietnamese-600-normal.DpPYBSTl.woff2)format("woff2"),url(/_astro/ibm-plex-sans-vietnamese-600-normal.DgdngZtN.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 Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-latin-ext-600-normal.DOrvGEcy.woff2)format("woff2"),url(/_astro/ibm-plex-sans-latin-ext-600-normal.DIrixKbi.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 Sans;font-style:normal;font-display:swap;font-weight:600;src:url(/_astro/ibm-plex-sans-latin-600-normal.CuJfVYMP.woff2)format("woff2"),url(/_astro/ibm-plex-sans-latin-600-normal.Cu4Hd6ag.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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/newsreader-vietnamese-wght-normal.Czsa-EzN.woff2)format("woff2-variations");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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/newsreader-latin-ext-wght-normal.C-3rgBeH.woff2)format("woff2-variations");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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/newsreader-latin-wght-normal.CCVVNp6i.woff2)format("woff2-variations");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}:root{--paper:#f4f1e9;--card:#fcfaf4;--ink:#272b26;--muted:#60665b;--line:#d9dccf;--accent:#c6491d;--wash:#e9ecdf;color:var(--ink);background:var(--paper);font-synthesis:none;font-family:IBM Plex Sans,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;font-size:16px;line-height:1.55}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}[hidden]{display:none!important}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:4px}h1,h2,h3,h4,p{margin:0}h1,h2{letter-spacing:-.04em;font-family:Newsreader Variable,Georgia,serif;font-weight:460;line-height:1.06}h1{font-size:clamp(42px,5vw,70px)}h2{font-size:clamp(32px,3.5vw,48px)}h3{font-size:22px;font-weight:500}p{color:var(--muted)}em{font-weight:450}svg{max-width:100%}.wrap{width:min(1200px,100% - 80px);margin-inline:auto}.eyebrow{letter-spacing:.1em;color:var(--muted);font-size:11px;font-weight:600}.fine{font-size:12px;line-height:1.6}.button{border:1px solid var(--ink);border-radius:4px;justify-content:space-between;align-items:center;gap:32px;min-height:48px;padding:14px 22px;font-weight:500;text-decoration:none;display:inline-flex}.dark{background:var(--ink);color:var(--paper)}.light{background:var(--paper);color:var(--ink)}.text-link{font-size:14px;font-weight:500}.text-button{text-underline-offset:4px;color:var(--ink);background:0 0;border:0;padding:10px 0;font-size:12px;text-decoration:underline}.skip{z-index:10;background:var(--ink);color:#fff;padding:16px;position:absolute;top:-100px;left:24px}.skip:focus{top:12px}.site-header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;height:92px;display:flex}.wordmark{letter-spacing:-.04em;white-space:nowrap;align-items:center;gap:10px;font-size:20px;font-weight:600;text-decoration:none;display:flex}.wordmark-light{font-weight:400}.site-header nav{gap:30px;display:flex}.site-header nav a{align-items:center;gap:8px;min-height:44px;font-size:13px;text-decoration:none;display:flex}.nav-arrow{color:var(--accent)}.hero{grid-template-columns:1.12fr 1fr;gap:60px;padding-block:80px;display:grid}.hero h1{margin-block:28px}.hero h1 em{color:var(--accent)}.orange-dot{background:var(--accent);border-radius:50%;width:7px;height:7px;margin-right:8px;display:inline-block}.hero-description{max-width:470px;font-size:18px;line-height:1.65}.hero-actions{align-items:center;gap:28px;margin-top:32px;display:flex}.hero-proof{color:var(--muted);gap:18px;margin-top:34px;font-size:10px;font-weight:500;display:flex}.hero-drawing{background:var(--wash);border:1px solid var(--line);background-image:linear-gradient(#d2d8c440 1px,#0000 1px),linear-gradient(90deg,#d2d8c440 1px,#0000 1px);background-size:24px 24px;border-radius:6px;flex-direction:column;justify-content:space-between;align-self:stretch;padding:30px;display:flex}.drawing-caption{justify-content:space-between;gap:18px;font-size:11px;display:flex}.hero-drawing svg{width:100%;margin-top:18px}.drawing-note{justify-content:center;gap:8px;display:flex}.drawing-note span{letter-spacing:.1em;background:#e9ecdf;border:1px solid #c5cbb8;border-radius:2px;padding:5px 14px;font-size:9px}.hero-drawing>p{color:var(--ink);margin-top:18px;font-family:Newsreader Variable,Georgia,serif;font-size:30px;line-height:1.1}.hero-drawing>p em{color:var(--accent)}.section-heading{justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px;display:flex}.section-heading h2{margin-top:12px}.section-heading>p{font-size:13px}.tools-section{padding-block:36px 72px}.tool-grid{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.tool-card{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:26px;text-decoration:none;transition:background .18s,border-color .18s;display:block;position:relative}.tool-card:hover{border-color:var(--muted);background:#fffdf8}.tool-number{color:var(--muted);font-variant-numeric:tabular-nums;font-size:11px}.card-arrow{float:right;color:var(--accent);font-size:22px}.tool-card h3{letter-spacing:-.025em;margin-block:34px 10px;font-family:Newsreader Variable,Georgia,serif;font-size:30px}.tool-card p{min-height:62px;font-size:13px}.tool-link{margin-top:28px;font-size:11px;text-decoration:underline;display:inline-block}.project-strip{background:var(--ink);color:var(--paper);border-radius:6px;justify-content:space-between;align-items:center;gap:30px;padding:38px 44px;display:flex}.project-strip h2{margin-block:12px 16px}.project-strip p{color:#d0d6c9;max-width:620px;font-size:14px}.project-strip .eyebrow{color:#b9c6ac}.project-strip .button{white-space:nowrap}.principles{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-block:84px;display:grid}.principles h2{margin-top:20px;font-size:34px}.principles h3{margin-bottom:14px;font-size:15px}.principles p{font-size:13px}.site-footer{border-top:1px solid var(--line);grid-template-columns:1.5fr 1fr;gap:30px;padding-block:36px;display:grid}.footer-brand{letter-spacing:-.03em;font-family:Newsreader Variable,Georgia,serif;font-size:30px;text-decoration:none}.site-footer p{margin-top:8px;font-size:13px}.site-footer nav{flex-wrap:wrap;place-content:start end;gap:12px 22px;font-size:12px;display:flex}.site-footer nav a,.site-footer nav button{min-height:34px;padding:7px 0}.site-footer nav button{background:0 0;border:0;font-size:12px;text-decoration:underline}.site-footer .copyright{grid-column:1/-1;margin-top:0;font-size:11px}.tool-intro{padding-block:24px 32px}.breadcrumb{color:var(--muted);gap:12px;margin-bottom:28px;font-size:11px;display:flex}.tool-title-row{justify-content:space-between;align-items:end;gap:30px;display:flex}.tool-title-row h1{margin-block:14px;font-size:clamp(38px,4vw,58px)}.tool-title-row p:not(.eyebrow){max-width:680px;font-size:15px}.tool-title-row>a{white-space:nowrap}.calculator{grid-template-columns:1.1fr 1fr;align-items:start;gap:24px;display:grid}.calc-input{background:var(--card);border:1px solid var(--line);border-radius:4px;padding:28px}.panel-heading{justify-content:space-between;align-items:center;gap:12px;min-height:30px;display:flex}.unit-bar{border-block:1px solid var(--line);justify-content:space-between;align-items:center;gap:10px;margin-top:16px;margin-bottom:6px;padding-block:18px;font-size:12px;display:flex}.segments{border:1px solid var(--line);border-radius:3px;display:flex;overflow:hidden}.segments button{border:0;border-left:1px solid var(--line);background:0 0;min-width:50px;min-height:44px;padding:8px 12px;font-size:12px}.segments button:first-child{border:0}.segments button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.field-grid,.select-grid{grid-template-columns:1fr 1fr;gap:18px 16px;display:grid}.select-grid{padding-block:18px}.field{flex-direction:column;gap:8px;min-width:0;display:flex}.field label,.field>span{justify-content:space-between;gap:8px;font-size:12px;font-weight:500;display:flex}.field .unit{color:var(--muted);white-space:nowrap;font-size:11px;font-weight:400}.field input,.field select{font-variant-numeric:tabular-nums;width:100%;min-width:0;min-height:48px;color:var(--ink);background:#fffef9;border:1px solid #bfc5b7;border-radius:3px;padding:10px 12px;font-size:16px}.field input[aria-invalid=true]{border-color:var(--accent)}.field small{color:var(--muted);font-size:11px;line-height:1.5}.field small.field-error{color:#a12e19}.field-error:empty{display:none}.mobile-result{width:100%;margin-top:24px}.measurement-guide{border-top:1px solid var(--line);margin-top:28px;padding-top:22px}.measurement-guide svg{width:100%;max-height:210px}.result-panel{background:var(--wash);border:1px solid #c3cbb6;border-radius:4px;min-width:0;padding:28px;scroll-margin-top:24px;position:sticky;top:24px}.status-dot{white-space:nowrap;color:var(--muted);font-size:10px}.status-dot:before{content:"";background:#5f774c;border-radius:50%;width:5px;height:5px;margin-right:5px;display:inline-block}.result-placeholder{color:#9ca98e;margin-top:22px;font-size:64px;line-height:1.3;display:block}.result-panel h2{margin-block:8px 14px;font-size:34px}.result-panel #result-empty p{margin-bottom:28px;font-size:14px}.result-label{color:var(--muted);margin-top:26px;font-size:12px;display:block}.result-number{letter-spacing:-.035em;color:var(--ink);font-variant-numeric:tabular-nums;overflow-wrap:anywhere;margin-block:12px;font-family:Newsreader Variable,Georgia,serif;font-size:clamp(32px,4vw,56px);line-height:1.05}.result-secondary{margin-bottom:22px;font-size:11px}.result-rows{border-block:1px solid #cbd2bf;grid-template-columns:1fr auto;gap:8px 20px;padding-block:18px;font-size:12px;display:grid}.result-rows dt{color:var(--muted)}.result-rows dd{text-align:right;font-variant-numeric:tabular-nums;margin:0}.result-panel h3{margin-block:20px 10px;font-size:14px}.result-panel details{margin-top:20px;font-size:12px}.result-panel summary{cursor:pointer;min-height:34px;font-weight:500}.result-panel ul{color:var(--muted);padding-left:18px;font-size:11px}.result-panel li+li{margin-top:8px}.result-actions{gap:8px;margin-top:26px;display:flex}.result-actions button{background:#f7f8ed;border:1px solid #c2cbb4;border-radius:3px;flex:1;min-height:44px;font-size:12px}.result-actions button:hover:enabled{background:#fffef9}.result-panel #action-notice{margin-top:10px}.shopping-list{gap:10px;display:grid}#shopping-list article{background:#f6f7ed;border:1px solid #c3cbb6;border-radius:3px;grid-template-columns:1fr auto;gap:4px 12px;padding:14px;display:grid}#shopping-list h4{font-size:12px;font-weight:500}#shopping-list strong{font-variant-numeric:tabular-nums;font-size:20px;line-height:1.2}#shopping-list p{grid-column:1/-1;margin-top:4px;font-size:10px}.next-tools>div{flex-wrap:wrap;gap:12px;font-size:12px;display:flex}.next-tools a{padding-block:6px}.storage-note{border-top:1px solid #cbd2bf;margin-top:22px;padding-top:16px}.storage-note p{font-size:10px}.storage-note .text-button{min-height:40px;font-size:10px}.error-box{color:#972d13;background:#fff6ec;border:1px solid #c97955;margin-top:16px;padding:12px;font-size:13px}.tool-documentation{grid-template-columns:1.5fr .7fr;gap:80px;padding-block:64px;display:grid}.documentation-main h2{margin-block:22px;font-size:36px}.documentation-main p,.documentation-main li{font-size:14px}.documentation-main ol{padding-left:22px}.documentation-main li+li{margin-top:16px}.formula-box{border:1px solid var(--line);background:var(--wash);margin-block:30px;padding:22px}.formula-box p{color:var(--ink);overflow-wrap:anywhere;margin-top:10px;font-family:monospace;font-size:12px}.static-example{background:var(--card);border:1px solid var(--line);margin-block:24px;padding:24px}.static-example dl{font-size:12px}.static-example dl>div{justify-content:space-between;gap:16px;margin-top:6px;display:flex}.static-example dd{text-align:right;overflow-wrap:anywhere;margin:0}.static-example strong{margin-top:24px;font-size:17px;display:block}.faq{border-bottom:1px solid var(--line);padding-block:14px}.faq summary{cursor:pointer;min-height:28px;font-size:15px}.faq p{margin-top:12px}.documentation-side{border-left:1px solid var(--line);padding-left:30px}.documentation-side h3{margin-block:16px;font-family:Newsreader Variable,Georgia,serif;font-size:32px}.documentation-side li,.documentation-side p{font-size:12px}.documentation-side ul{padding-left:16px}.documentation-side li+li{margin-top:16px}.documentation-side>p:not(.eyebrow){margin-block:24px}.documentation-side .fine{font-size:10px}.related-tools{padding-bottom:54px}.related-tools>div{flex-wrap:wrap;gap:12px;margin-top:16px;display:flex}.related-tools a{border:1px solid var(--line);border-radius:3px;padding:10px 16px;font-size:12px}.prose{max-width:760px;margin-inline:auto;padding-block:64px}.prose h1{margin-bottom:24px}.prose h2{margin-block:36px 16px;font-size:32px}.prose h3{margin-block:28px 14px;font-size:20px}.prose p,.prose li{font-size:15px}.prose p+p{margin-top:18px}.prose li+li{margin-top:10px}.prose a{color:var(--accent)}.consent-banner{z-index:5;border:1px solid var(--ink);background:var(--card);border-radius:4px;align-items:center;gap:30px;width:min(1000px,100% - 32px);padding:22px;display:flex;position:fixed;bottom:18px;left:50%;transform:translate(-50%);box-shadow:0 8px 32px #272b2630}.consent-banner strong{font-size:14px}.consent-banner p{margin-top:6px;font-size:11px}.consent-actions{flex-shrink:0;gap:12px;display:flex}.consent-actions button{border:1px solid var(--ink);border-radius:3px;min-height:44px;padding:10px 14px;font-size:12px}.consent-actions button:first-child{background:var(--card)}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=1000px){.wrap{width:calc(100% - 48px)}.hero{gap:30px;padding-block:54px}.hero-actions{flex-wrap:wrap;gap:20px}.hero-proof{flex-wrap:wrap;gap:8px 16px}.hero-drawing{padding:22px}.principles{grid-template-columns:1fr 1fr}.calculator{gap:16px}.calc-input,.result-panel{padding:20px}.panel-heading{flex-wrap:wrap}.tool-documentation{gap:40px}}@media (width<=720px){.wrap{width:calc(100% - 32px)}.site-header{flex-wrap:wrap;gap:8px;height:auto;min-height:88px;padding-block:16px}.wordmark{font-size:19px}.site-header nav{gap:20px;width:100%}.site-header nav a{min-height:32px;font-size:12px}.hero{grid-template-columns:1fr;gap:30px;padding-block:38px}.hero h1{margin-block:22px;font-size:54px}.hero-description{font-size:16px}.hero-drawing{min-height:350px}.hero-drawing svg{max-height:220px}.section-heading{flex-direction:column;align-items:start;gap:16px}.tool-grid{grid-template-columns:1fr 1fr;gap:10px}.tool-card{padding:20px}.tool-card h3{margin-top:26px;font-size:26px}.tool-card p{min-height:88px}.project-strip{flex-direction:column;align-items:start;padding:28px}.principles{gap:28px;padding-block:48px}.principles>div:first-child{grid-column:1/-1}.principles h2{font-size:38px}.site-footer{grid-template-columns:1fr}.site-footer nav{justify-content:start}.tool-title-row{flex-direction:column;align-items:start;gap:14px}.calculator{grid-template-columns:1fr}.result-panel{position:static}.tool-documentation{grid-template-columns:1fr;gap:32px;padding-block:40px}.documentation-side{border-left:0;border-top:1px solid var(--line);padding-top:24px;padding-left:0}.documentation-side>p:not(.eyebrow){margin-block:18px}.prose{width:calc(100% - 32px);padding-block:40px}.consent-banner{flex-direction:column;align-items:start;gap:16px}.consent-actions{width:100%}.consent-actions button{flex:1}.result-number{font-size:46px}}@media (width<=390px){.hero h1{font-size:46px}.tool-grid{grid-template-columns:1fr}.tool-card p{min-height:auto}.tool-card h3{margin-top:18px}.principles{grid-template-columns:1fr}.field-grid,.select-grid{gap:18px 10px}.field label{font-size:11px}.unit-bar{flex-direction:column;align-items:start}.calc-input,.result-panel{padding:16px}.result-rows{gap:8px;font-size:11px}.hero-proof{font-size:9px}.drawing-caption{flex-direction:column;gap:6px}.hero-actions .button{width:100%}.wordmark{font-size:18px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{@page{margin:15mm}body{color:#000;background:#fff}.site-header,.site-footer,.tool-documentation,.related-tools,.result-actions,.storage-note,.measurement-guide,.mobile-result,.text-button,.consent-banner,.next-tools,.breadcrumb,.tool-title-row>a,#action-notice{display:none!important}.wrap{width:100%}.calculator{display:block}.calc-input{break-after:avoid;border:0;padding:0}.panel-heading,.unit-bar,.select-grid{display:none}.field-grid{grid-template-columns:repeat(3,1fr);gap:8px}.field input{background:0 0;border:0;min-height:24px;padding:0;font-size:12px}.field small{display:none}.field label{font-size:10px}.result-panel{break-inside:avoid;background:#fff;border:1px solid #aaa;min-height:0;margin-top:20px;padding:18px;position:static}.result-number{font-size:36px}.tool-intro{padding-block:0 24px}.tool-title-row h1{font-size:32px}.result-panel details,.result-panel ul{display:block}.result-panel #shopping-list article{background:#fff}}