:root{--spring-fast:.1s linear(0, .3669, .7258, .8966, .9637, .9878, .996, .9987, 1, 1);--spring-fast-exit:60ms ease-out;--spring-moderate:.2s linear(0, .1244, .3428, .5438, .698, .8064, .8786, .9252, .9546, .9727, .9837, .9904, .9943, .9967, .9981, .9989, 1, 1, 1, 1);--spring-moderate-exit:.12s ease-out;--spring-slow:.25s linear(0, .0554, .1787, .325, .4686, .5964, .7033, .7886, .8541, .9028, .9379, .9623, .9788, .9895, .9961, 1, 1.002, 1.0028, 1.003, 1.0027, 1.0024, 1.0019, 1.0015, 1.0011, 1);--spring-slow-exit:.16s ease-out}@media (prefers-reduced-motion:reduce){:root{--spring-fast:0s linear;--spring-fast-exit:0s linear;--spring-moderate:0s linear;--spring-moderate-exit:0s linear;--spring-slow:0s linear;--spring-slow-exit:0s linear}}:root{color-scheme:light dark}:root[data-theme=light]{color-scheme:light}:root[data-theme=dark]{color-scheme:dark}:root{--surface-1:light-dark(#ebebe7,#121212);--surface-2:light-dark(#f5f5f2,#1a1a1a);--surface-3:light-dark(#fff,#1f1f1e);--muted:light-dark(#e1e1dc,#2a2a28);--hover:light-dark(#e4e4df,#2c2c2c);--selected:light-dark(#111,#f5f5f3);--selected-ink:light-dark(#fff,#121212);--ink:light-dark(#111,#f5f5f3);--ink-muted:light-dark(#4f4f4b,#b5b5b0);--border:light-dark(#d6d6d0,#363634);--border-strong:light-dark(#7a7a74,#7d7d75);--draw-side:light-dark(#d9d9d5,#3a3a38);--draw-side-2:light-dark(#bdbdb8,#2e2e2c);--brand:light-dark(#111,#ffc20e);--brand-ink:light-dark(#fff,#111);--answer:#ffc20e;--answer-ink:#111;--inverse:light-dark(#111,#f5f5f3);--inverse-ink:light-dark(#fff,#121212);--danger:light-dark(#b42318,#ff8a80);--focus-ring:#0a66d8;--shadow-color:#0000000f;--shadow-2:0 0 0 1px var(--shadow-color), 0 1px 1px -.5px var(--shadow-color);--shadow-lift:0 0 0 1px var(--shadow-color), 0 1px 1px -.5px var(--shadow-color), 0 3px 3px -1.5px var(--shadow-color);--font-display:var(--font-archivo,ui-sans-serif), system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--font-sans:var(--font-archivo,ui-sans-serif), system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--display-weight:800;--display-transform:none;--display-tracking:-.025em;--fs-result:clamp(1.75rem, 6vw, 2.75rem);--fs-result-hero:clamp(3.5rem, 15vw, 5.75rem);--lh-result:1;--fs-display:clamp(34px, 6vw, 56px);--lh-display:1.03;--fs-question:clamp(18px, 1rem + .4vw, 22px);--fs-question-hero:clamp(22px, 1rem + 1.2vw, 32px);--fs-heading:clamp(24px, 1rem + 1.6vw, 34px);--lh-heading:1.1;--fs-title:18px;--lh-title:24px;--fs-body:18px;--lh-body:28px;--fs-control:22px;--lh-control:26px;--fs-caption:15px;--lh-caption:22px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-6:24px;--space-8:32px;--space-12:48px;--control-h:52px;--control-h-quiet:40px;--radius-control:8px;--radius-focus:8px;--radius-container:12px;--radius-pill:999px;--stroke:2.5px;--measure:72rem;--prose:68ch;--gutter:16px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--shadow-2:var(--shadow-2-dark);--shadow-lift:var(--shadow-lift-dark)}}:root[data-theme=dark]{--shadow-2:var(--shadow-2-dark);--shadow-lift:var(--shadow-lift-dark)}:root{--shadow-2-dark:inset 0 0 0 1px #ffffff0f, 0 1px 1px -.5px #00000040;--shadow-lift-dark:inset 0 0 0 1px #ffffff14, 0 3px 3px -1.5px #00000040}@media (width>=640px){:root{--gutter:24px}}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;background:var(--surface-1);color:var(--ink);font-family:var(--font-sans);font-size:var(--fs-body);line-height:var(--lh-body);accent-color:var(--brand);caret-color:var(--brand)}body{min-height:100svh;margin:0}::selection{background:color-mix(in oklab, var(--brand) 22%, transparent)}:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px;border-radius:var(--radius-focus)}a{color:var(--brand);text-underline-offset:.18em;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}a:focus-visible{border-radius:2px}img,svg{max-width:100%;display:block}.tf-page{width:100%;max-width:calc(var(--measure) + 2 * var(--gutter));padding-inline:var(--gutter);margin-inline:auto}h1,h2,h3{text-wrap:balance;margin:0}h1,h2{font-family:var(--font-display);font-weight:var(--display-weight,400);text-transform:var(--display-transform,uppercase);letter-spacing:var(--display-tracking,-.01em)}h1{font-size:var(--fs-display);line-height:var(--lh-display);margin-block:var(--space-6) var(--space-4)}h2{font-size:var(--fs-heading);line-height:var(--lh-heading);margin-block:var(--space-12) var(--space-6)}h3{font-size:var(--fs-title);line-height:var(--lh-title);margin-block:var(--space-6) var(--space-2);font-weight:600}p,ol,ul{margin-block:0 var(--space-4);max-width:var(--prose)}ol,ul{padding-inline-start:1.25em}li+li{margin-top:var(--space-1)}ol>li::marker{font-weight:700}.tf-lead{font-size:var(--fs-question);color:var(--ink);margin-block:var(--space-2) var(--space-4);line-height:1.4}.tf-caption{font-size:var(--fs-caption);line-height:var(--lh-caption);color:var(--ink-muted)}.tf-num,table{font-variant-numeric:tabular-nums}table{border-collapse:collapse;width:100%;font-size:var(--fs-caption);line-height:var(--lh-caption)}th,td{padding:var(--space-2) var(--space-3);border-bottom:1px solid var(--border);text-align:start;vertical-align:top}thead th{background:var(--muted);font-weight:600}input,select,button,textarea{font:inherit;font-size:var(--fs-control);line-height:var(--lh-control);color:inherit}.tf-visually-hidden{clip-path:inset(50%);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}*{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}.tf-field{gap:var(--space-1);font-size:var(--fs-caption);line-height:var(--lh-caption);color:var(--ink-muted);display:grid}.tf-field__box{height:var(--control-h);padding-inline:var(--space-3);background:var(--surface-3);border:1px solid var(--border-strong);border-radius:var(--radius-control);color:var(--ink);align-items:center;display:flex}.tf-field__box:focus-within{outline:2px solid var(--focus-ring);outline-offset:2px}.tf-field__box[data-invalid]{border-color:var(--danger)}.tf-field input{font-variant-numeric:tabular-nums;background:0 0;border:0;outline:0;flex:1;width:100%;min-width:0}.tf-field__unit{color:var(--ink-muted);padding-inline-start:var(--space-2)}.tf-error{color:var(--danger);font-size:var(--fs-caption);line-height:var(--lh-caption);margin:0}.tf-segmented{gap:var(--space-1);padding:var(--space-1);background:var(--muted);border-radius:var(--radius-control);border:0;grid-template-columns:repeat(2,minmax(0,1fr));margin:0;display:grid}.tf-segmented label{min-height:var(--control-h-quiet);padding-inline:var(--space-3);border-radius:calc(var(--radius-control) - 2px);font-size:var(--fs-caption);color:var(--ink-muted);cursor:pointer;transition:background-color var(--spring-moderate), color var(--spring-fast);place-items:center;font-weight:500;display:grid;position:relative}.tf-segmented input{opacity:0;cursor:pointer;position:absolute;inset:0}.tf-segmented label:hover{color:var(--ink)}.tf-segmented label:has(input:checked){background:var(--selected);color:var(--selected-ink);font-weight:600}.tf-segmented label:has(input:focus-visible){outline:2px solid var(--focus-ring);outline-offset:2px}@container (width>=440px){.tf-segmented{grid-template-columns:none;grid-auto-columns:minmax(0,1fr);grid-auto-flow:column}}.tf-blank{width:5.6ch;font-size:inherit;border:2px solid var(--ink);background:var(--surface-3);text-align:center;font-variant-numeric:tabular-nums;border-radius:0;padding:0 .25em;font-weight:700;line-height:1.25}@supports (field-sizing:content){.tf-blank{field-sizing:content;width:auto;min-width:3.4ch;max-width:12ch}}.tf-blank:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px;border-radius:0}.tf-blank[aria-invalid=true]{border-color:var(--danger)}.tf-inverse{background:var(--inverse);color:var(--inverse-ink);--ink:var(--inverse-ink);--ink-muted:color-mix(in oklab, var(--inverse-ink) 72%, var(--inverse));--muted:color-mix(in oklab, var(--inverse-ink) 12%, var(--inverse));--border:color-mix(in oklab, var(--inverse-ink) 18%, transparent)}h1{margin-block:var(--space-4) var(--space-2)}.h-lede{margin:0 0 var(--space-4);max-width:var(--prose);color:var(--ink-muted)}.h-summary{margin:0 0 var(--space-6);max-width:var(--prose);font-weight:500}.h-card{min-width:0;padding:var(--space-4);background:var(--surface-3);border-radius:var(--radius-container);box-shadow:var(--shadow-2)}@media (width>=640px){.h-card{padding:var(--space-6)}}.h-step{align-items:center;gap:var(--space-3);margin:0 0 var(--space-4);font-size:20px;font-weight:800;line-height:1.2;display:flex}h2.h-step{margin-top:var(--space-8);font-size:var(--fs-heading)}.h-step span{background:var(--ink);width:32px;height:32px;color:var(--surface-3);border-radius:50%;flex:none;place-items:center;font-size:16px;display:grid}.h-choices{gap:var(--space-2);min-width:0;margin:0 0 var(--space-4);scrollbar-width:none;border:0;padding:0;display:flex;overflow-x:auto}.h-choices legend{clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}.h-choices label{min-height:44px;padding:0 var(--space-4);border:2px solid var(--border);border-radius:var(--radius-pill);background:var(--surface-2);white-space:nowrap;cursor:pointer;align-items:center;font-size:16px;font-weight:600;display:inline-flex;position:relative}.h-choices input{opacity:0;pointer-events:none;position:absolute}.h-choices label:has(input:checked){border-color:var(--ink);background:var(--ink);color:var(--surface-1)}.h-choices label:has(input:focus-visible){outline:3px solid var(--focus-ring);outline-offset:2px}.h-choices--small label{min-height:36px;padding:0 var(--space-3);font-size:14px}.h-choices--small label:has(input:checked){background:var(--surface-3);color:var(--ink)}.h-work{gap:var(--space-4);grid-template-columns:minmax(0,1fr);display:grid}@media (width>=900px){.h-work{gap:var(--space-8);grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:start}}.h-fields{gap:var(--space-4) var(--space-3);border:0;grid-template-columns:repeat(2,minmax(0,1fr));align-content:start;margin:0;padding:0;display:grid}.h-field--wide{grid-column:1/-1}.h-field>label,.h-field>span{margin-bottom:6px;font-size:15px;font-weight:700;line-height:20px;display:block}.h-pair{align-items:center;gap:6px;display:flex}.h-pair .h-pair{flex:none}.h-pair .h-pair .h-input{width:calc(2ch + 2 * var(--space-3) + 4px)}@media (width<=559px){.h-fields>.h-field:has(input[data-kind=ft]){grid-column:1/-1}}.h-input{width:100%;min-width:0;height:var(--control-h);padding:0 var(--space-3);border:2px solid var(--border);border-radius:var(--radius-control);background:var(--surface-2);box-shadow:inset 0 -3px 0 var(--ink);color:var(--ink);font:700 var(--fs-control) / var(--lh-control) var(--font-sans);font-variant-numeric:tabular-nums}.h-input:focus-visible{background:var(--surface-3);outline:3px solid var(--focus-ring);outline-offset:1px}.h-input[aria-invalid=true]{border-color:var(--danger)}.h-unit{min-width:1.4em;color:var(--ink-muted);font-size:16px;font-weight:600}select.h-input{font-size:17px;font-weight:600}.u-met{display:none}:root[data-units=metric] .u-met{display:inline}:root[data-units=metric] .u-imp,[data-tool] [data-shape]{display:none}[data-tool]:has(input[value=slab]:checked) [data-shape~=slab],[data-tool]:has(input[value=footing]:checked) [data-shape~=footing],[data-tool]:has(input[value=holes]:checked) [data-shape~=holes],[data-tool]:has(input[value=column]:checked) [data-shape~=column],[data-tool]:has(input[value=box]:checked) [data-shape~=box],[data-tool]:has(input[value=round]:checked) [data-shape~=round],[data-tool]:has(input[value=bed]:checked) [data-shape~=bed],[data-tool]:has(input[value=fill]:checked) [data-shape~=fill]{display:grid}.h-answer{padding:var(--space-4) 18px;background:var(--answer);color:var(--answer-ink);border:var(--stroke) solid #111;border-radius:var(--radius-container);gap:6px;margin:0;display:grid;box-shadow:5px 5px #111}.h-answer__label{margin:0;font-size:16px;font-weight:700}.h-answer__value{font-size:var(--fs-result-hero);letter-spacing:-.04em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;text-align:right;justify-self:end;font-weight:800;line-height:1}.h-answer__unit{letter-spacing:0;font-size:.34em}.h-answer__also{text-align:right;justify-self:end;margin:0;font-size:16px;font-weight:600}@media (width>=900px){.h-answer{padding:22px 24px}}.h-drawing{margin:var(--space-4) 0 0;padding:var(--space-2);background:var(--surface-3);border-radius:var(--radius-container);box-shadow:var(--shadow-2)}.h-drawing svg{aspect-ratio:360/220;width:100%;height:auto}.d-top{fill:var(--surface-3);stroke:var(--ink);stroke-width:var(--stroke);stroke-linejoin:round}.d-side{fill:var(--draw-side);stroke:var(--ink);stroke-width:var(--stroke);stroke-linejoin:round}.d-side2{fill:var(--draw-side-2);stroke:var(--ink);stroke-width:var(--stroke);stroke-linejoin:round}.d-post{fill:var(--surface-3);stroke:var(--ink);stroke-width:2px;stroke-dasharray:5 4}.d-fpost{fill:var(--surface-3);stroke:var(--ink);stroke-width:2px}.d-grid{fill:none;stroke:var(--ink-muted);stroke-width:1px}.d-rail,.d-ground{stroke:var(--ink);stroke-width:3px}.d-ground{stroke-width:2px}.d-dim{stroke:var(--ink);stroke-width:1.5px}.d-head{fill:var(--ink)}.d-lbl{fill:var(--ink);font:700 14px var(--font-sans)}.d-area,.d-count{fill:var(--ink);font:800 18px var(--font-sans)}.d-num{fill:var(--ink-muted);font:700 13px var(--font-sans)}.h-buy{gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}@media (width>=720px){.h-buy{grid-template-columns:1fr 1fr}}.h-opt{gap:2px var(--space-3);padding:var(--space-4);background:var(--surface-3);border-radius:var(--radius-container);box-shadow:var(--shadow-2);border:2px solid #0000;grid-template-columns:52px minmax(0,1fr);display:grid}.h-opt>svg{width:52px;height:52px;color:var(--ink);grid-row:1/span 3}.h-opt p{margin:0}.h-opt__k{color:var(--ink-muted);font-size:15px;font-weight:700}.h-opt__v{font-size:20px;line-height:1.3}.h-opt__v strong{font-variant-numeric:tabular-nums;font-size:30px;font-weight:800}.h-opt__s{color:var(--ink-muted);font-size:15px}.h-opt__price{justify-content:space-between;align-items:center;gap:var(--space-2);margin-top:var(--space-3);color:var(--ink-muted);grid-column:1/-1;font-size:15px;display:flex}.h-opt__price .h-input{text-align:right;width:6.5ch;height:40px;font-size:17px}.h-opt__cost{text-align:right;font-variant-numeric:tabular-nums;grid-column:1/-1;min-height:34px;font-size:26px;font-weight:800}.h-opt.is-win{border:var(--stroke) solid var(--ink);box-shadow:0 0 0 4px var(--answer)}.h-opt.is-win .h-opt__k:after{content:"Cheaper";margin-left:var(--space-2);border-radius:var(--radius-pill);background:var(--answer);color:var(--answer-ink);padding:2px 8px;font-size:13px}.h-verdict{min-height:56px;margin:var(--space-3) 0 0;font-size:19px;font-weight:500}.h-steps{counter-reset:step;gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}.h-steps li{counter-increment:step;padding-left:46px;position:relative}.h-steps li:before{content:counter(step);border:var(--stroke) solid var(--ink);border-radius:50%;place-items:center;width:32px;height:32px;font-size:15px;font-weight:800;display:grid;position:absolute;top:2px;left:0}.h-steps span{color:var(--ink-muted);font-size:15px;display:block}.h-steps strong{font-variant-numeric:tabular-nums}.h-privacy{margin:var(--space-3) 0 0}.h-add{min-height:44px;padding:0 var(--space-4);border:2px dashed var(--border-strong);border-radius:var(--radius-pill);cursor:pointer;background:0 0;justify-self:start;font-weight:700}.h-hub{gap:var(--space-3);margin:0;padding:0;list-style:none;display:grid}@media (width>=720px){.h-hub{grid-template-columns:repeat(3,1fr)}}.h-hub a{height:100%;padding:var(--space-4);background:var(--surface-3);border-radius:var(--radius-container);color:var(--ink);border:2px solid #0000;text-decoration:none;display:block}.h-hub a:hover{border-color:var(--ink)}.h-hub strong{font-size:19px;display:block}.h-hub span{color:var(--ink-muted);font-size:15px}.tf-footer[data-astro-cid-qijfrgne]{gap:var(--space-2) var(--space-4);margin-top:var(--space-12);padding-block:var(--space-6);border-top:1px solid var(--border);font-size:var(--fs-caption);line-height:var(--lh-caption);flex-wrap:wrap;display:flex}.tf-footer[data-astro-cid-qijfrgne] a[data-astro-cid-qijfrgne]{color:var(--ink-muted)}.tf-theme[data-astro-cid-g7yjzk5a]{border:0;gap:2px;margin:0;padding:0;display:inline-flex}.tf-theme[data-astro-cid-g7yjzk5a] label[data-astro-cid-g7yjzk5a]{font-size:var(--fs-caption);color:var(--ink-muted);cursor:pointer;transition:color var(--spring-fast);padding:6px 8px;line-height:1.2;position:relative}.tf-theme[data-astro-cid-g7yjzk5a] label[data-astro-cid-g7yjzk5a]:hover{color:var(--ink)}.tf-theme[data-astro-cid-g7yjzk5a] input[data-astro-cid-g7yjzk5a]{opacity:0;cursor:pointer;margin:0;position:absolute;inset:0}.tf-theme[data-astro-cid-g7yjzk5a] label[data-astro-cid-g7yjzk5a]:has(input:checked){background:var(--selected);color:var(--selected-ink)}.tf-theme[data-astro-cid-g7yjzk5a] label[data-astro-cid-g7yjzk5a]:has(input:focus-visible){outline:2px solid var(--focus-ring);outline-offset:2px}.h-units[data-astro-cid-ti35elof]{border:0;gap:2px;margin:0;padding:0;display:inline-flex}.h-units[data-astro-cid-ti35elof] label[data-astro-cid-ti35elof]{font-size:var(--fs-caption);color:var(--ink-muted);cursor:pointer;padding:6px 8px;line-height:1.2;position:relative}.h-units[data-astro-cid-ti35elof] label[data-astro-cid-ti35elof]:hover{color:var(--ink)}.h-units[data-astro-cid-ti35elof] input[data-astro-cid-ti35elof]{opacity:0;cursor:pointer;margin:0;position:absolute;inset:0}.h-units[data-astro-cid-ti35elof] label[data-astro-cid-ti35elof]:has(input:checked){background:var(--selected);color:var(--selected-ink)}.h-units[data-astro-cid-ti35elof] label[data-astro-cid-ti35elof]:has(input:focus-visible){outline:2px solid var(--focus-ring);outline-offset:2px}.site-header[data-astro-cid-hkbrpulz]{border-bottom:1px solid var(--border)}.site-ruler[data-astro-cid-hkbrpulz]{background:var(--answer) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='16'%3E%3Cpath d='M1 0v14M9 0v7M17 0v7M25 0v9M33 0v7' stroke='%23111' stroke-width='2'/%3E%3C/svg%3E") repeat-x;border-bottom:2px solid #111;height:16px}.site-header__row[data-astro-cid-hkbrpulz]{justify-content:space-between;align-items:center;gap:var(--space-2);padding-block:var(--space-3) var(--space-2);flex-wrap:wrap;display:flex}.site-header__toggles[data-astro-cid-hkbrpulz]{gap:var(--space-3);flex-wrap:wrap;display:flex}.site-header__name[data-astro-cid-hkbrpulz]{color:var(--ink);font:800 clamp(18px, 4.8vw, 21px)/1 var(--font-display);letter-spacing:-.01em;white-space:nowrap;align-items:center;gap:.3em;text-decoration:none;display:inline-flex}.site-header__and[data-astro-cid-hkbrpulz]{color:var(--ink-muted);font-weight:500}.site-header__mark[data-astro-cid-hkbrpulz]{background:var(--answer);border:var(--stroke) solid #111;border-radius:4px;width:1.05em;height:1.05em;margin-right:.2em;box-shadow:2px 2px #111}.site-nav[data-astro-cid-hkbrpulz]{gap:var(--space-4);scrollbar-width:none;padding-block:0 var(--space-3);font-size:16px;font-weight:500;display:flex;overflow-x:auto}.site-nav[data-astro-cid-hkbrpulz] a[data-astro-cid-hkbrpulz]{color:var(--ink-muted);white-space:nowrap;text-decoration:none}.site-nav[data-astro-cid-hkbrpulz] a[data-astro-cid-hkbrpulz][aria-current=page]{color:var(--ink);font-weight:700}
