@font-face{font-family:Barlow Condensed;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/barlow-condensed-700.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Inter;font-style:normal;font-weight:400 700;font-display:swap;src:url(/fonts/inter-var.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{color-scheme:light dark;--hg-bg: #FAF7F2;--hg-surface: #FFFFFF;--hg-alt: #F2ECE3;--hg-ink: #1C1917;--hg-ink-soft: #57534E;--hg-line: #8F857B;--hg-field: #6F665E;--hg-accent: #EB5E12;--hg-on-accent: #1C1917;--hg-accent-ink: #B83F0A;--hg-lime: #A3E635;--hg-lime-ink: #4D7C0F;--hg-lime-tint: #ECFCCB;--hg-night: #1C1917;--hg-night-2: #292524;--hg-on-night: #F5F1EB;--hg-on-night-soft: #C9C0B6;--hg-night-accent: #FF8A3D;--hg-night-line: #7A7068;--font-display: "Barlow Condensed", "Arial Narrow", ui-sans-serif, system-ui, sans-serif;--font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;--text-xs: .8125rem;--text-sm: .875rem;--text-base: 1rem;--text-md: 1.125rem;--text-lg: clamp(1.35rem, 1.2rem + .6vw, 1.6rem);--text-xl: clamp(1.6rem, 1.4rem + 1vw, 2.2rem);--text-2xl: clamp(2rem, 1.6rem + 2vw, 3rem);--text-display: clamp(2.5rem, 1.8rem + 3.4vw, 4.5rem);--text-result: clamp(3.25rem, 2.6rem + 3vw, 5rem);--space-1: .5rem;--space-2: 1rem;--space-3: 1.5rem;--space-4: 2rem;--space-5: 3rem;--space-6: 4rem;--space-7: 6rem;--tap: 2.75rem;--radius-sm: 8px;--radius: 16px;--shadow-card: 0 1px 2px rgba(28, 25, 23, .06), 0 8px 24px -16px rgba(28, 25, 23, .25);--container: 74rem;--content: 46rem}@media(prefers-color-scheme:dark){:root{--hg-bg: #131110;--hg-surface: #1C1917;--hg-alt: #26221F;--hg-ink: #F5F1EB;--hg-ink-soft: #C4BBB1;--hg-line: #776E66;--hg-field: #8E847B;--hg-accent: #FF7A2E;--hg-on-accent: #131110;--hg-accent-ink: #FF9550;--hg-lime: #B5F23D;--hg-lime-ink: #B5F23D;--hg-lime-tint: #263016;--hg-night: #0B0A09;--hg-night-2: #1C1917;--hg-on-night: #F5F1EB;--hg-on-night-soft: #C4BBB1;--hg-night-accent: #FF8A3D;--hg-night-line: #6E655E;--shadow-card: none}}*{box-sizing:border-box}[hidden]{display:none!important}html{font-family:var(--font-sans);-webkit-text-size-adjust:100%}[id]{scroll-margin-top:4.5rem}body{margin:0;color:var(--hg-ink);background:var(--hg-bg);font-size:var(--text-base);line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.02;letter-spacing:0;text-transform:uppercase;color:var(--hg-ink);margin:0 0 var(--space-2);text-wrap:balance}h1{font-size:var(--text-display)}h2{font-size:var(--text-2xl)}h3{font-size:var(--text-lg);line-height:1.1}h4{font-size:var(--text-base);margin:0 0 var(--space-1)}p{margin:0 0 var(--space-2)}a{color:var(--hg-accent-ink);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}a:hover{text-decoration-thickness:2px}img,svg{max-width:100%}::selection{background:var(--hg-accent);color:var(--hg-on-accent)}:focus-visible{outline:3px solid var(--hg-accent);outline-offset:2px;border-radius:4px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.skip-link{position:absolute;left:var(--space-2);top:-4rem;z-index:100;background:var(--hg-accent);color:var(--hg-on-accent);padding:var(--space-1) var(--space-2);border-radius:var(--radius-sm);font-weight:700}.skip-link:focus{top:var(--space-1)}.container{max-width:var(--container);margin-inline:auto;padding-inline:clamp(1rem,4vw,2rem)}.prose{max-width:var(--content)}.prose p,.prose li{color:var(--hg-ink-soft)}.prose strong{color:var(--hg-ink)}.prose ul,.prose ol{padding-left:1.3rem;margin:0 0 var(--space-2)}.prose li{margin-bottom:var(--space-1)}.section{padding-block:var(--space-6)}.section+.section{border-top:1px solid var(--hg-line)}.eyebrow{display:inline-block;font-size:var(--text-sm);font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--hg-accent-ink);margin-bottom:var(--space-1)}.lede{font-size:var(--text-md);color:var(--hg-ink-soft);max-width:var(--content)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-1);min-height:var(--tap);font:inherit;font-weight:700;text-decoration:none;border-radius:var(--radius-sm);padding:.625rem 1.25rem;border:2px solid transparent;cursor:pointer}.btn--primary{background:var(--hg-accent);color:var(--hg-on-accent);border-color:var(--hg-accent)}.btn--primary:hover{background:var(--hg-ink);color:var(--hg-bg);border-color:var(--hg-ink)}.btn--ghost{background:transparent;color:var(--hg-ink);border-color:var(--hg-ink)}.btn--ghost:hover{background:var(--hg-ink);color:var(--hg-bg)}.btn-row{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-top:var(--space-3)}.site-header{background:var(--hg-bg);border-bottom:1px solid var(--hg-line);position:sticky;top:0;z-index:50}.site-header .inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);min-height:3.5rem}.logo{display:flex;align-items:center;gap:var(--space-1);min-height:var(--tap);font-family:var(--font-display);font-weight:700;font-size:1.375rem;text-transform:uppercase;letter-spacing:.01em;color:var(--hg-ink);text-decoration:none}.logo svg{flex:none;display:block}.logo .logo-accent{color:var(--hg-accent-ink)}.main-nav{display:flex;align-items:center;gap:var(--space-1)}.main-nav a{display:inline-flex;align-items:center;min-height:var(--tap);padding-inline:var(--space-1);font-weight:600;font-size:.9375rem;color:var(--hg-ink);text-decoration:none}.main-nav a:not(.btn):hover,.main-nav a[aria-current=page]{text-decoration:underline;text-decoration-color:var(--hg-accent);text-decoration-thickness:3px;text-underline-offset:6px}.main-nav .btn{padding-inline:var(--space-2)}@media(max-width:420px){.main-nav .nav-hide-xs{display:none}}.breadcrumbs{font-size:var(--text-sm);color:var(--hg-ink-soft)}.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;align-items:center;column-gap:var(--space-1)}.breadcrumbs li+li:before{content:"/";margin-right:var(--space-1);color:var(--hg-ink-soft)}.breadcrumbs a{color:var(--hg-ink-soft);display:inline-flex;align-items:center;min-height:2rem}.breadcrumbs a:hover{color:var(--hg-ink)}.toolhero{padding-block:var(--space-2) var(--space-3)}.toolhero h1{font-size:clamp(2.25rem,1.7rem + 2.6vw,3.75rem);margin:var(--space-1) 0 var(--space-1)}.toolhero .lede{margin:0}@media(max-width:640px){.toolhero{padding-block:var(--space-1) var(--space-2)}.toolhero .lede{font-size:var(--text-base)}.toolhero .lede-long{display:none}}.grid{display:grid;gap:var(--space-2);grid-template-columns:repeat(auto-fill,minmax(min(17rem,100%),1fr));margin-top:var(--space-3)}.card{position:relative;background:var(--hg-surface);border:1px solid var(--hg-line);border-radius:var(--radius);padding:var(--space-3);display:flex;flex-direction:column;gap:var(--space-1)}.card h2,.card h3{margin:0;font-size:var(--text-lg)}.card p{color:var(--hg-ink-soft);margin:0}.card a.card-link{color:var(--hg-ink);text-decoration:none}.card a.card-link:after{content:"";position:absolute;inset:0;border-radius:var(--radius)}.card--live{border-width:2px;border-color:var(--hg-ink)}.card--live:hover{border-color:var(--hg-accent)}.card--live:has(a:focus-visible){outline:3px solid var(--hg-accent);outline-offset:2px}.card a.card-link:focus-visible{outline:none}.card .meta{margin-top:auto;padding-top:var(--space-1);font-size:var(--text-sm);font-weight:700;color:var(--hg-accent-ink)}.badge{display:inline-block;align-self:flex-start;font-size:var(--text-xs);font-weight:700;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--hg-line);border-radius:999px;padding:.125rem .625rem;color:var(--hg-ink-soft)}.badge--live{background:var(--hg-lime-tint);border-color:var(--hg-lime-ink);color:var(--hg-ink)}.tool-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:var(--space-3);align-items:start;margin-bottom:var(--space-4)}@media(max-width:900px){.tool-grid{grid-template-columns:minmax(0,1fr);gap:var(--space-2)}.tool-grid .result{order:-1}}.calc-card{background:var(--hg-surface);border:1px solid var(--hg-line);border-radius:var(--radius);padding:var(--space-3);box-shadow:var(--shadow-card)}.calc-card>h2{font-size:var(--text-lg);margin-bottom:var(--space-2)}@media(max-width:480px){.calc-card{padding:var(--space-2)}}.field{display:grid;gap:var(--space-1);margin:0 0 var(--space-2);border:0;padding:0;min-width:0}.field>label,.field>legend{font-size:var(--text-sm);font-weight:700;color:var(--hg-ink);padding:0}.field .hint{font-size:var(--text-sm);color:var(--hg-ink-soft)}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-2);margin-bottom:var(--space-2)}.field-row>.field{margin-bottom:0}.field-row--3{grid-template-columns:1fr 1fr 1fr}@media(max-width:440px){.field-row--3{grid-template-columns:1fr 1fr}.field-row--3>:first-child{grid-column:1 / -1}}.input,.field select{font:inherit;font-size:1.0625rem;color:var(--hg-ink);background:var(--hg-surface);border:2px solid var(--hg-field);border-radius:var(--radius-sm);min-height:3rem;padding:.5rem .75rem;width:100%}.input:focus,.field select:focus{outline:3px solid var(--hg-accent);outline-offset:1px;border-color:var(--hg-ink)}.input-unit{position:relative;display:block}.input-unit .input{padding-right:2.75rem}.input-unit .unit{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);font-size:var(--text-sm);font-weight:700;color:var(--hg-ink-soft);pointer-events:none}.input[aria-invalid=true]{border-color:var(--hg-accent-ink)}.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2357534E' stroke-width='2' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .875rem center;padding-right:2.5rem}.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;border:2px solid var(--hg-field);border-radius:var(--radius-sm);overflow:hidden}.seg input{position:absolute;opacity:0;width:1px;height:1px}.seg label{display:flex;align-items:center;justify-content:center;text-align:center;min-height:2.75rem;padding:.25rem .5rem;font-weight:600;font-size:.9375rem;line-height:1.2;cursor:pointer;color:var(--hg-ink);background:var(--hg-surface)}.seg label:not(:first-of-type){border-left:2px solid var(--hg-field)}.seg input:checked+label{background:var(--hg-ink);color:var(--hg-bg)}.seg input:focus-visible+label{outline:3px solid var(--hg-accent);outline-offset:-5px}.result{background:var(--hg-night);color:var(--hg-on-night-soft);border:1px solid var(--hg-night-line);border-top:6px solid var(--hg-accent);border-radius:var(--radius);padding:var(--space-3);position:sticky;top:4.5rem}.result h2{color:var(--hg-on-night);font-size:var(--text-md);letter-spacing:.04em;margin:0 0 var(--space-1)}.result-big{display:flex;align-items:baseline;flex-wrap:wrap;gap:0 var(--space-1)}.result-num{font-family:var(--font-display);font-weight:700;font-size:var(--text-result);line-height:.95;color:var(--hg-night-accent);font-variant-numeric:tabular-nums}.result-unit{font-weight:700;color:var(--hg-on-night);font-size:var(--text-md)}.result-label{display:block;font-size:var(--text-sm);color:var(--hg-on-night-soft);margin:var(--space-1) 0 0}.result-rows{list-style:none;margin:var(--space-2) 0 0;padding:0;display:grid}.result-rows li{display:flex;justify-content:space-between;align-items:baseline;gap:var(--space-1) var(--space-2);flex-wrap:wrap;border-top:1px solid var(--hg-night-line);padding-block:var(--space-1);font-size:.9375rem}.result-rows li strong{color:var(--hg-on-night);font-weight:600}.result-rows li span{font-variant-numeric:tabular-nums;font-weight:700;color:var(--hg-on-night);white-space:nowrap}.result-note{font-size:var(--text-sm);margin:var(--space-2) 0 0;color:var(--hg-on-night-soft)}.result a{color:var(--hg-night-accent)}.result-error{color:var(--hg-on-night);font-weight:600;margin:var(--space-1) 0 0}@media(max-width:900px){.result{position:static;padding:var(--space-2) var(--space-2) var(--space-1)}.result .result-rows li.r-extra{display:none}}.result-bar{position:fixed;left:0;right:0;bottom:0;z-index:45;display:none;align-items:center;justify-content:space-between;gap:var(--space-2);min-height:3.5rem;padding:var(--space-1) var(--space-2);padding-bottom:calc(var(--space-1) + env(safe-area-inset-bottom));background:var(--hg-night);color:var(--hg-on-night);border-top:4px solid var(--hg-accent)}.result-bar strong{font-family:var(--font-display);font-size:1.75rem;color:var(--hg-night-accent);font-variant-numeric:tabular-nums}.result-bar a{color:var(--hg-on-night);font-weight:600;min-height:var(--tap);display:inline-flex;align-items:center}@media(max-width:900px){.result-bar.is-on{display:flex}}.table-wrap{overflow-x:auto;max-width:100%;border:1px solid var(--hg-line);border-radius:var(--radius-sm);margin-block:var(--space-2);background:var(--hg-surface)}.ref-table{border-collapse:collapse;width:100%;font-size:.9375rem}.ref-table caption{text-align:left;font-weight:700;padding:var(--space-1) var(--space-2);border-bottom:1px solid var(--hg-line);color:var(--hg-ink);background:var(--hg-alt)}.ref-table th,.ref-table td{padding:.625rem var(--space-2);text-align:left;border-bottom:1px solid var(--hg-line);vertical-align:top}.ref-table thead th{background:var(--hg-night);color:var(--hg-on-night);font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.04em;border-bottom:0}.ref-table tbody tr:nth-child(2n) td,.ref-table tbody tr:nth-child(2n) th{background:var(--hg-alt)}.ref-table tbody tr:last-child td,.ref-table tbody tr:last-child th{border-bottom:0}.ref-table tbody th{font-weight:700;color:var(--hg-ink)}.ref-table .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.ref-table td.num strong{font-size:1.0625rem}.ref-table .desc{color:var(--hg-ink-soft)}.ref-table tr.is-current td,.ref-table tr.is-current th{background:var(--hg-lime-tint)!important}.ref-table tr.is-current th{box-shadow:inset 6px 0 0 var(--hg-lime-ink)}.ref-table tr.is-current th:after{content:" (you)";font-weight:600;color:var(--hg-ink-soft)}.table-note{font-size:var(--text-sm);color:var(--hg-ink-soft);max-width:var(--content)}.ref-table .mult-inline{display:none}@media(max-width:560px){.ref-table .desc,.ref-table .col-factor{display:none}.ref-table .mult-inline{display:block;font-weight:400;font-size:var(--text-sm);color:var(--hg-ink-soft)}.ref-table th,.ref-table td{padding-inline:.75rem}}.formula{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9375rem;line-height:1.7;background:var(--hg-surface);border:1px solid var(--hg-line);border-left:6px solid var(--hg-accent);border-radius:var(--radius-sm);padding:var(--space-2);margin:0 0 var(--space-2);overflow-x:auto;color:var(--hg-ink)}.formula code{white-space:pre-wrap}.page-section{padding-block:var(--space-5);border-top:1px solid var(--hg-line)}.page-section h2{font-size:var(--text-xl)}.faq{display:grid;gap:var(--space-1);max-width:var(--content);margin-top:var(--space-2)}.faq details{border:1px solid var(--hg-line);border-radius:var(--radius-sm);background:var(--hg-surface)}.faq summary{cursor:pointer;list-style:none;position:relative;min-height:var(--tap);padding:.75rem 3.5rem .75rem var(--space-2);font-weight:700;color:var(--hg-ink)}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:var(--space-2);top:50%;transform:translateY(-50%);width:1.75rem;height:1.75rem;display:grid;place-items:center;border:2px solid var(--hg-ink);border-radius:999px;font-weight:700;line-height:1}.faq details[open] summary:after{content:"−";background:var(--hg-accent);border-color:var(--hg-accent);color:var(--hg-on-accent)}.faq details>p{padding:0 var(--space-2) var(--space-2);margin:0;color:var(--hg-ink-soft)}.embed-block{background:var(--hg-surface);border:1px solid var(--hg-line);border-radius:var(--radius);padding:var(--space-3);max-width:var(--content)}.embed-block textarea{width:100%;min-height:8.5rem;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:var(--text-sm);color:var(--hg-ink);background:var(--hg-alt);border:2px solid var(--hg-field);border-radius:var(--radius-sm);padding:var(--space-1)}.embed-block .btn-row{margin-top:var(--space-2);align-items:center}.copy-status{font-size:var(--text-sm);color:var(--hg-ink-soft)}.disclaimer{border:1px solid var(--hg-line);border-left:6px solid var(--hg-ink);background:var(--hg-surface);border-radius:var(--radius-sm);padding:var(--space-2);font-size:var(--text-sm);color:var(--hg-ink-soft);max-width:var(--content)}.disclaimer strong{color:var(--hg-ink)}.sources{font-size:var(--text-sm);color:var(--hg-ink-soft);max-width:var(--content)}.sources h2{font-size:var(--text-md)}.sources ul{margin:0;padding-left:1.1rem;display:grid;gap:var(--space-1)}.sources a{overflow-wrap:anywhere}.related{display:flex;flex-wrap:wrap;gap:var(--space-1);list-style:none;padding:0;margin:var(--space-2) 0 0}.related a{display:inline-flex;align-items:center;min-height:var(--tap);padding:0 var(--space-2);border:2px solid var(--hg-ink);border-radius:999px;color:var(--hg-ink);text-decoration:none;font-weight:600}.related a:hover{background:var(--hg-ink);color:var(--hg-bg)}.related .soon{border-style:dashed;border-color:var(--hg-field);color:var(--hg-ink-soft)}.site-footer{background:var(--hg-night);color:var(--hg-on-night-soft);margin-top:var(--space-6);border-top:6px solid var(--hg-accent)}.site-footer .cols{display:grid;gap:var(--space-4);grid-template-columns:repeat(auto-fit,minmax(min(14rem,100%),1fr));padding-block:var(--space-5) var(--space-4)}.site-footer h2{color:var(--hg-on-night);font-size:var(--text-md);letter-spacing:.06em}.site-footer ul{list-style:none;margin:0;padding:0;display:grid}.site-footer a{color:var(--hg-on-night);text-decoration:none;display:inline-flex;align-items:center;min-height:var(--tap)}.site-footer a:hover{text-decoration:underline}.site-footer .soon{color:var(--hg-on-night-soft);display:inline-flex;align-items:center;min-height:var(--tap)}.site-footer .legal{border-top:1px solid var(--hg-night-line);padding-block:var(--space-3);font-size:var(--text-sm)}.site-footer .legal p{margin:0 0 var(--space-1)}.rail{display:none}@media(min-width:1280px){.rail{display:block;position:fixed;right:1.25rem;top:50%;transform:translateY(-50%);z-index:40}.rail ul{list-style:none;margin:0;padding:0;display:grid;gap:.25rem;justify-items:end}.rail a{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-1);min-height:1.75rem;text-decoration:none}.rail-dot{width:10px;height:10px;border-radius:999px;border:2px solid var(--hg-field);background:transparent;flex:none}.rail a:hover .rail-dot{border-color:var(--hg-accent)}.rail a.on .rail-dot{height:22px;border-color:var(--hg-accent);background:var(--hg-accent)}.rail-label{font-size:var(--text-xs);font-weight:600;color:var(--hg-ink);background:var(--hg-surface);border:1px solid var(--hg-line);border-radius:var(--radius-sm);padding:.25rem .5rem;white-space:nowrap;opacity:0;pointer-events:none}.rail a:hover .rail-label,.rail a:focus-visible .rail-label{opacity:1}}.home-hero{padding-block:var(--space-5) 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rotate(-45deg)}.nav-burger-panel{position:absolute;top:100%;left:0;right:0;z-index:60;max-height:calc(100dvh - 4rem);overflow-y:auto;background:var(--hg-bg);border-top:1px solid var(--hg-line);border-bottom:6px solid var(--hg-accent);box-shadow:var(--shadow-card);padding:var(--space-1) var(--space-2) var(--space-2)}.nav-burger-panel ul{list-style:none;margin:0 auto;padding:0;max-width:var(--container)}.nav-burger-panel a{display:flex;align-items:center;min-height:3rem;border-bottom:1px solid var(--hg-line);font-family:var(--font-display);font-weight:700;font-size:1.25rem;text-transform:uppercase;letter-spacing:.02em;color:var(--hg-ink);text-decoration:none}.nav-burger-panel li:last-child a{border-bottom:0}.nav-burger-panel a:hover,.nav-burger-panel a[aria-current=page]{color:var(--hg-accent-ink)}.nav-burger-panel a[aria-current=page]:after{content:" (you are 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