:root{--c-bg: #FFFFFF;--c-bg-alt: #F6F4F0;--c-bg-band: #ECE8E1;--c-bg-subtle: #FBFAF7;--c-bg-accent-weak: #F7EDE3;--c-anchor: #26241F;--c-accent-on-dark: #E8C9A6;--c-footer-bg: var(--c-anchor);--c-footer-text: #D6D1C7;--c-footer-heading: #FFFFFF;--c-footer-link: #D6D1C7;--c-footer-border: #403C34;--c-text: #1C1B19;--c-text-secondary: #5A574F;--c-text-on-accent: #FFFFFF;--c-accent: #8C5A2B;--c-accent-hover: #6E4520;--c-accent-active: #6E4520;--c-accent-subtle: #E0C9AE;--c-accent-visited: #75604D;--c-border: #DDD7CC;--c-border-strong: #CBC3B4;--c-border-input: #9A9280;--c-ok: #3F6B4A;--c-ok-bg: #EEF3EF;--c-warn: #775913;--c-warn-bg: #F8F3E6;--c-bad: #8C3A2E;--c-bad-bg: #F8EEEC;--c-ok-tint: rgb(63 107 74 / .1);--c-warn-tint: rgb(119 89 19 / .12);--c-bad-tint: rgb(140 58 46 / .1);--c-focus: #8C5A2B;--focus-ring: 2px solid var(--c-focus);--focus-offset: 2px;--focus-halo: 0 0 0 1px var(--c-accent), 0 0 0 4px rgb(140 90 43 / .18);--c-selection: rgb(140 90 43 / .18);--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";--font-serif: "Source Serif 4", "SS4 Fallback", Georgia, "Times New Roman", serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--fs-h1: clamp(2rem, 1.19rem + 3.35vw, 3rem);--fs-h2: clamp(1.5rem, 1.35rem + .62vw, 1.875rem);--fs-h3: 1.25rem;--fs-h4: 1.0625rem;--fs-body: 1.0625rem;--fs-lead: clamp(1.125rem, 1.07rem + .22vw, 1.1875rem);--fs-small: .875rem;--fs-micro: .8125rem;--lh-tight: 1.2;--lh-snug: 1.35;--lh-body: 1.7;--lh-relaxed: 1.75;--fw-normal: 400;--fw-medium: 500;--fw-semibold: 600;--fw-h2: 650;--fw-bold: 700;--tracking-h1: -.02em;--tracking-h2: -.01em;--tracking-h3: -.005em;--tracking-tight: var(--tracking-h2);--tracking-wide: .02em;--tracking-figure: -.03em;--measure: var(--w-text);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-7: 3rem;--space-8: 4rem;--space-9: 6rem;--rhythm-section: 64px;--rhythm-h2: 24px;--rhythm-para: 20px;--rhythm-h3-above: 32px;--rhythm-h3: 16px;--flow: var(--rhythm-para);--w-text: 760px;--w-wide: 1040px;--w-shell: calc(var(--w-wide) + 2 * var(--gutter-x-lg));--gutter-x: var(--space-4);--gutter-x-lg: var(--space-6);--calc-result-h: 258px;--fs-figure: clamp(2.5rem, 1.9rem + 2.5vw, 3.25rem);--fs-figure-sub: 1.25rem;--calc-status-h: 132px;--calc-status-h-xs: 108px;--calc-status-h-sm: 83px;--calc-status-h-md: 49px;--calc-status-h-lg: 26px;--calc-answer-label-h: 45px;--calc-cell-h: 96px;--calc-cell-h-sm: 48px;--calc-cell-h-lg: 24px;--calc-size-note-h: 69px;--calc-size-note-h-sm: 46px;--calc-size-note-h-md: 23px;--calc-pill-w: 92px;--calc-pill-h: 26px;--calc-pill-label-w: 60px;--ad-rail-w: 160px;--ad-rail-w-lg: 300px;--ad-rail-h: 600px;--ad-rail-gap: var(--space-5);--ad-rail-top: var(--space-6);--ad-rect-w: 336px;--ad-rect-h: 280px;--ad-anchor-w: 320px;--ad-anchor-h: 50px;--ad-lb-w: 728px;--ad-lb-h: 90px;--ad-inline-h: 280px;--bp-mobile-ads: 768px;--bp-rails: 1488px;--bp-rails-lg: 1768px;--touch-min: 44px;--dot-size: 10px;--radius-sm: 3px;--radius: 8px;--radius-md: 10px;--radius-lg: 12px;--radius-pill: 999px;--radius-segmented: 6px;--border: 1px solid var(--c-border);--border-strong: 1px solid var(--c-border-strong);--shadow-card: 0 1px 2px rgb(0 0 0 / .04), 0 8px 24px rgb(0 0 0 / .06);--shadow-lift: 0 1px 2px rgb(0 0 0 / .05), 0 6px 16px rgb(0 0 0 / .08);--shadow-overlay: 0 -1px 0 var(--c-border), 0 -4px 12px rgb(26 26 26 / .06);--lift: 2px;--icon-size: 24px;--arrow-size: 7px;--arrow-travel: 3px;--transition: .15s ease-out;--header-h: 52px;--header-h-sm: 84px;--header-blur: 8px;--header-bg: rgb(255 255 255 / .82);--bar-w: 3px;--bar-h: 40px;--bar-gap: 12px}@media(max-width:768px){:root{--rhythm-section: 40px;--rhythm-h2: 20px;--rhythm-para: 18px;--rhythm-h3-above: 24px;--rhythm-h3: 14px}}:root{color-scheme:light}@media(prefers-reduced-motion:reduce){:root{--transition: 0ms;--lift: 0px;--arrow-travel: 0px}}@font-face{font-family:"Source Serif 4";src:url(/fonts/source-serif-4-600-latin.woff2) format("woff2");font-weight:600;font-style:normal;font-display:optional;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:SS4 Fallback;src:local("Georgia"),local("Times New Roman"),local("Times");size-adjust:93%}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h-sm) + var(--space-4))}@media(min-width:768px){html{scroll-padding-top:calc(var(--header-h) + var(--space-4))}}[id]{scroll-margin-top:calc(var(--header-h-sm) + var(--space-4))}@media(min-width:768px){[id]{scroll-margin-top:calc(var(--header-h) + var(--space-4))}}@media(prefers-reduced-motion:no-preference){html:focus-within{scroll-behavior:smooth}}body{background:var(--c-bg);color:var(--c-text);font-family:var(--font-sans);font-size:var(--fs-body);line-height:var(--lh-body);font-weight:var(--fw-normal);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh;overflow-x:hidden}h1,h2,h3,h4,h5,h6{color:var(--c-text);font-weight:var(--fw-semibold);overflow-wrap:break-word}h1,h2{font-family:var(--font-serif)}h1{font-size:var(--fs-h1);line-height:var(--lh-tight);letter-spacing:var(--tracking-h1);font-weight:var(--fw-bold)}h2{font-size:var(--fs-h2);line-height:var(--lh-tight);letter-spacing:var(--tracking-h2);font-weight:var(--fw-h2)}h3{font-size:var(--fs-h3);line-height:var(--lh-snug);letter-spacing:var(--tracking-h3);font-weight:var(--fw-semibold)}h4{font-size:var(--fs-h4);line-height:var(--lh-snug);font-weight:var(--fw-semibold)}p{text-wrap:pretty}::selection{background:var(--c-selection)}a{color:var(--c-accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.15em;transition:color var(--transition)}a:hover{color:var(--c-accent-hover);text-decoration-thickness:2px}a:active{color:var(--c-accent-active)}a:visited{color:var(--c-accent-visited)}a:visited:hover{color:var(--c-accent-hover)}:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset);border-radius:var(--radius-sm)}:is(a,button,input,select,textarea,summary,[tabindex]):focus:not(:focus-visible){outline:none}ul,ol{padding-left:var(--space-5)}li+li{margin-top:var(--space-2)}li::marker{color:var(--c-text-secondary)}img,svg,video,canvas,iframe{display:block;max-width:100%}img,video{height:auto}img[width][height]{height:auto}code,kbd,samp,pre,var{font-family:var(--font-mono);font-size:.9375em;font-style:normal}code{background:var(--c-bg-alt);border:var(--border);border-radius:var(--radius-sm);padding:.1em .35em}pre{background:var(--c-bg-alt);border:var(--border);border-radius:var(--radius);padding:var(--space-4);overflow-x:auto}pre code{background:none;border:0;padding:0}hr{border:0;border-top:var(--border);margin-block:var(--space-6)}table{border-collapse:collapse;width:100%}button,input,select,textarea{font:inherit;color:inherit;letter-spacing:inherit}button{cursor:pointer;background:none;border:0;padding:0}textarea{resize:vertical}@supports (-webkit-touch-callout: none){input,select,textarea{font-size:max(1rem,var(--fs-body))}}strong,b{font-weight:var(--fw-semibold)}abbr[title]{text-decoration:underline dotted;cursor:help}small{font-size:var(--fs-small)}::selection{background:var(--c-bg-accent-weak);color:var(--c-text)}.u-visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.skip-link{position:absolute;top:0;left:var(--space-4);z-index:100;transform:translateY(-120%);background:var(--c-bg);color:var(--c-accent);border:var(--border-strong);border-top:0;border-radius:0 0 var(--radius) var(--radius);padding:var(--space-2) var(--space-4);font-weight:var(--fw-medium);text-decoration:none}.skip-link:focus{transform:translateY(0)}.page{display:flex;flex-direction:column;min-height:100vh}.page>.site-footer{margin-top:auto}.shell{display:grid;grid-template-columns:min(var(--w-shell),100%);justify-content:center;width:100%}.shell>.ad-rail{display:none}@media(min-width:1488px){.shell{grid-template-columns:minmax(0,1fr) min(var(--w-shell),100%) minmax(0,1fr);column-gap:var(--ad-rail-gap)}.shell>.ad-rail{display:block}}.ad-rail{position:sticky;top:var(--ad-rail-top);align-self:start;width:100%;max-width:var(--ad-rail-w);min-height:var(--ad-rail-h);margin-top:calc(var(--rhythm-section) / 2)}.ad-rail--left{justify-self:end}.ad-rail--right{justify-self:start}@media(min-width:1768px){.ad-rail{max-width:var(--ad-rail-w-lg)}}.ad-slot{width:100%;margin-block:var(--space-6)}.ad-slot--inline{height:var(--ad-inline-h)}.ad-slot--leaderboard{max-width:var(--ad-lb-w);height:var(--ad-lb-h);margin-inline:auto}.ad-slot--responsive{max-width:var(--ad-rect-w);height:var(--ad-rect-h);margin-inline:auto}@media(min-width:768px){.ad-slot--responsive{max-width:var(--ad-lb-w);height:var(--ad-lb-h)}}.ad-slot--rect{max-width:var(--ad-rect-w);height:var(--ad-rect-h);margin-inline:auto}@media(min-width:768px){.ad-slot--only-mobile{display:none}}@media(max-width:767px){.ad-slot--only-desktop{display:none}}.ad-anchor{display:none}@media(max-width:767px){.ad-anchor{display:flex;align-items:center;justify-content:center;position:fixed;inset:auto 0 0;z-index:50;min-height:var(--ad-anchor-h);padding-bottom:env(safe-area-inset-bottom,0px);background:var(--c-bg)}.ad-debug .ad-anchor{box-shadow:var(--shadow-overlay)}.ad-anchor__unit{width:100%;max-width:var(--ad-anchor-w);height:var(--ad-anchor-h)}.ads-enabled .page{padding-bottom:calc(var(--ad-anchor-h) + env(safe-area-inset-bottom,0px))}html.ads-enabled{scroll-padding-bottom:calc(var(--ad-anchor-h) + var(--space-4))}}.ad-debug .ad-rail,.ad-debug .ad-slot,.ad-debug .ad-anchor__unit{outline:1px dashed var(--c-border-strong);outline-offset:-1px;background:repeating-linear-gradient(135deg,transparent 0 10px,var(--c-bg-alt) 10px 20px);border-radius:var(--radius)}.ad-debug .ad-rail:after,.ad-debug .ad-slot:after,.ad-debug .ad-anchor__unit:after{content:attr(data-reserved);display:block;padding:var(--space-2);color:var(--c-text-secondary);font-size:var(--fs-micro);letter-spacing:var(--tracking-wide);text-transform:uppercase;text-align:center}.section-head{display:flex;align-items:flex-start;gap:var(--bar-gap)}.section-head__bar{flex:none;width:var(--bar-w);height:var(--bar-h);border-radius:var(--radius-pill);background:var(--c-accent);margin-top:calc((1em * var(--lh-tight) - var(--bar-h)) / 2)}.section-head>h2{margin-top:0}.prose>.section-head{margin-top:var(--rhythm-section)}.prose>.section-head+*{margin-top:var(--rhythm-h2)}.prose>.section-head:first-child{margin-top:0}@media(max-width:768px){.section-head__bar{height:28px}}.prose+.faq,.prose+.card-grid,.prose+.card-groups{margin-top:var(--rhythm-h2)}.main{min-width:0}.section{padding-block:calc(var(--rhythm-section) / 2)}.section--alt{background:var(--c-bg-band)}.section--tint{position:relative}.section--tint>.container{position:relative;z-index:1}.section__tint{position:absolute;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(to bottom,var(--c-bg-alt) 0%,var(--c-bg-subtle) 55%,var(--c-bg) 100%)}.section--flush{padding-block:0}.section--tight{padding-block:var(--space-5)}.section--ruled+.section--ruled{border-top:var(--border)}.container{width:100%;margin-inline:auto;padding-inline:var(--gutter-x)}@media(min-width:768px){.container{padding-inline:var(--gutter-x-lg)}}.container--text,.container--wide{max-width:calc(var(--w-wide) + 2 * var(--gutter-x-lg))}.container--text>*{max-width:var(--w-text)}.container--flush{padding-inline:0}.flow>*+*{margin-top:var(--flow)}.prose{max-width:var(--measure)}.prose>*+*{margin-top:var(--flow)}.prose>h2{margin-top:var(--rhythm-section)}.prose>h3{margin-top:var(--rhythm-h3-above)}.prose>h4{margin-top:var(--rhythm-h2)}.prose>:first-child{margin-top:0}.prose>h2+*{margin-top:var(--rhythm-h2)}.prose>h3+*,.prose>h4+*{margin-top:var(--rhythm-h3)}.prose>ul,.prose>ol{margin-top:var(--space-3)}.prose>.table-wrap,.prose>figure,.prose>pre{margin-top:var(--space-5)}.prose a,.prose-lead a{color:var(--c-accent);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.18em;text-decoration-skip-ink:auto}.prose a:visited,.prose-lead a:visited{color:var(--c-accent-visited)}.prose a:hover,.prose-lead a:hover{color:var(--c-accent-hover);text-decoration-thickness:2px}.prose a:active,.prose-lead a:active{color:var(--c-accent-active)}.prose-lead{font-size:var(--fs-lead);line-height:var(--lh-body);color:var(--c-text)}.prose-note{font-size:var(--fs-small);line-height:var(--lh-relaxed);color:var(--c-text-secondary)}.grid{display:grid;gap:var(--space-4);grid-template-columns:1fr}@media(min-width:640px){.grid--2,.grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:960px){.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}}.u-center{text-align:center}.u-secondary{color:var(--c-text-secondary)}.u-small{font-size:var(--fs-small)}.u-measure{max-width:var(--measure)}.u-no-margin{margin:0}@media(min-width:960px){.grid--4{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(min-width:1200px){.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}}.site-header{position:sticky;top:0;z-index:40;border-bottom:var(--border);background:var(--c-bg)}@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)){.site-header{background:var(--header-bg);-webkit-backdrop-filter:blur(var(--header-blur)) saturate(180%);backdrop-filter:blur(var(--header-blur)) saturate(180%)}}.site-header__inner{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3) var(--space-5);padding-block:var(--space-3)}.site-logo{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--c-text);font-size:var(--fs-body);font-weight:var(--fw-bold);letter-spacing:var(--tracking-h3);line-height:var(--lh-snug);text-decoration:none;white-space:nowrap}.site-logo:hover{color:var(--c-accent)}.site-logo__glyph{display:block;flex:none;width:var(--icon-size);height:var(--icon-size);color:var(--c-accent)}.site-logo__text{display:inline-flex;align-items:baseline;gap:.35em}.site-logo__mark{color:var(--c-accent);font-weight:var(--fw-bold)}.site-nav{margin-left:auto}.site-nav__list{display:flex;flex-wrap:wrap;gap:var(--space-1) var(--space-4);list-style:none;margin:0;padding:0}.site-nav__list li+li{margin-top:0}.site-nav__link{position:relative;display:block;padding-block:var(--space-1);color:var(--c-text-secondary);font-size:var(--fs-small);font-weight:var(--fw-medium);line-height:var(--lh-snug);text-decoration:none;transition:color var(--transition)}.site-nav__link:after{content:"";position:absolute;inset-inline:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left center;transition:transform var(--transition)}.site-nav__link:hover:after,.site-nav__link:focus-visible:after,.site-nav__link[aria-current=page]:after{transform:scaleX(1)}.site-nav__link:hover{color:var(--c-accent)}.site-nav__link[aria-current=page]{color:var(--c-text)}@media(max-width:767px){.site-header__inner{gap:var(--space-2)}.site-nav{margin-left:0;width:100%}}.breadcrumbs{padding-block:var(--space-4) 0;font-size:var(--fs-small);line-height:var(--lh-snug);color:var(--c-text-secondary)}.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-1) var(--space-2);list-style:none;margin:0;padding:0}.breadcrumbs__list li{display:flex;align-items:center;gap:var(--space-2);margin-top:0}.breadcrumbs__list li+li:before{content:"/";color:var(--c-border-strong)}.breadcrumbs a{color:var(--c-text-secondary);text-decoration:none}.breadcrumbs a:hover{color:var(--c-accent);text-decoration:underline}.breadcrumbs__current{color:var(--c-text);font-weight:var(--fw-medium)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:var(--touch-min);padding:var(--space-2) var(--space-5);border:1px solid transparent;border-radius:var(--radius);font-size:var(--fs-body);font-weight:var(--fw-semibold);line-height:var(--lh-snug);text-align:center;text-decoration:none;transition:background var(--transition),border-color var(--transition),color var(--transition)}.btn--primary,.btn--primary:visited{background:var(--c-accent);color:var(--c-text-on-accent)}.btn--primary:hover,.btn--primary:visited:hover{background:var(--c-accent-hover);color:var(--c-text-on-accent)}.btn--primary:active{background:var(--c-accent-active);color:var(--c-text-on-accent)}.btn--primary:focus-visible{box-shadow:0 0 0 2px var(--c-text-on-accent)}.btn--secondary{background:var(--c-bg);border-color:var(--c-border-input);color:var(--c-text)}.btn--secondary:visited{color:var(--c-text)}.btn--secondary:hover,.btn--secondary:visited:hover{border-color:var(--c-accent);color:var(--c-accent)}.btn--quiet,.btn--quiet:visited{background:none;color:var(--c-accent);padding-inline:var(--space-2)}.btn--quiet:hover{background:var(--c-bg-accent-weak)}.btn--block{width:100%}.btn[disabled],.btn[aria-disabled=true]{opacity:.55;cursor:not-allowed}.card{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-4);background:var(--c-bg);border:var(--border);border-radius:var(--radius-md)}.card__title{font-size:var(--fs-h3);font-weight:var(--fw-semibold);line-height:var(--lh-snug)}.card__title a{text-decoration:none;color:var(--c-text)}.card__title a:hover{text-decoration:underline}.card__icon{display:block;width:var(--icon-size);height:var(--icon-size);margin-bottom:var(--space-1);color:var(--c-accent);transition:color var(--transition)}.card--link:hover .card__icon{color:var(--c-accent-hover)}.card__text{margin:0;font-size:var(--fs-small);line-height:var(--lh-relaxed);color:var(--c-text-secondary)}.card__meta{margin-top:auto;font-size:var(--fs-micro);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--c-text-secondary)}.card--link{position:relative}.card--link{transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition),background-color var(--transition)}.card--link:hover{border-color:var(--c-accent);box-shadow:var(--shadow-lift);transform:translateY(calc(-1 * var(--lift)))}.card--link:hover .card__title a{color:var(--c-accent)}.card--link .card__title{display:flex;align-items:baseline;gap:var(--space-2)}.card--link .card__title:after{content:"";flex:none;align-self:center;width:var(--arrow-size);height:var(--arrow-size);border-top:2px solid var(--c-accent);border-right:2px solid var(--c-accent);transform:rotate(45deg);opacity:.75;transition:transform var(--transition),opacity var(--transition)}.card--link:hover .card__title:after,.card--link:has(a:focus-visible) .card__title:after{opacity:1;transform:translate(var(--arrow-travel)) rotate(45deg)}.card--link:has(a:focus-visible){outline:var(--focus-ring);outline-offset:var(--focus-offset);border-color:var(--c-accent)}.card--link .card__title a:after{content:"";position:absolute;inset:0;border-radius:inherit}.card--link .card__title a:focus-visible{outline:none}.card-grid{list-style:none;margin:0;padding:0}.card-grid>li{display:flex;margin-top:0}.card-grid>li>.card{width:100%}.table-wrap{width:100%;overflow-x:auto;overflow-y:hidden;border:var(--border);border-radius:var(--radius);scrollbar-gutter:stable}.table-wrap:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset)}.table{width:100%;font-size:var(--fs-small);line-height:var(--lh-snug);font-variant-numeric:tabular-nums}.table caption>span{position:sticky;left:0;display:inline-block}.table caption{padding:var(--space-3) var(--space-4);border-bottom:var(--border);color:var(--c-text-secondary);font-size:var(--fs-small);text-align:left}.table-source{margin:var(--space-3) 0 0;color:var(--c-text-secondary);font-size:var(--fs-micro);line-height:var(--lh-relaxed)}.table th,.table td{padding:var(--space-3) var(--space-4);text-align:left;vertical-align:top;border-bottom:var(--border)}.table thead th{background:var(--c-bg-alt);border-bottom:var(--border-strong);color:var(--c-text-secondary);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase;vertical-align:bottom}.table tbody tr:last-child>*{border-bottom:0}.table tbody tr{transition:background var(--transition)}.table tbody tr:hover{background:var(--c-bg-subtle)}.table tbody th{font-weight:var(--fw-medium);white-space:nowrap}.table .td--num,.table .th--num{text-align:right}.num{display:inline-flex;justify-content:flex-end;white-space:nowrap;font-variant-numeric:tabular-nums}.num__int{text-align:right}.num__frac{min-width:var(--frac-w, 0);text-align:left}.table--zebra tbody tr:nth-child(2n){background:var(--c-bg-alt)}.table__row--highlight{background:var(--c-bg-accent-weak)}.table tbody tr[data-band]>th:first-child{border-left:3px solid var(--c-border-strong)}.table__dot{display:inline-block;width:var(--dot-size);height:var(--dot-size);margin-right:var(--space-2);border-radius:var(--radius-pill);background:var(--c-text-secondary);vertical-align:baseline}.table tbody tr[data-band=ok]>th:first-child{border-left-color:var(--c-ok)}.table tbody tr[data-band=ok] .table__dot{background:var(--c-ok)}.table tbody tr[data-band=warn]>th:first-child{border-left-color:var(--c-warn)}.table tbody tr[data-band=warn] .table__dot{background:var(--c-warn)}.table tbody tr[data-band=bad]>th:first-child{border-left-color:var(--c-bad)}.table tbody tr[data-band=bad] .table__dot{background:var(--c-bad)}.prose table{font-size:var(--fs-small)}.prose :is(th,td){padding:var(--space-3) var(--space-4);border-bottom:var(--border);text-align:left;vertical-align:top}.prose thead th{background:var(--c-bg-alt);border-bottom:var(--border-strong);font-weight:var(--fw-semibold)}.callout{padding:var(--space-4);background:var(--c-bg-alt);border:var(--border);border-left:3px solid var(--c-border-strong);border-radius:var(--radius);font-size:var(--fs-small);line-height:var(--lh-relaxed)}.callout>*+*{margin-top:var(--space-3)}.callout__title{font-size:var(--fs-small);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--c-text-secondary)}.callout--accent{border-left-color:var(--c-accent);background:var(--c-bg-accent-weak)}.callout--ok{border-left-color:var(--c-ok);background:var(--c-ok-bg)}.callout--warn{border-left-color:var(--c-warn);background:var(--c-warn-bg)}.callout--bad{border-left-color:var(--c-bad);background:var(--c-bad-bg)}.formula{padding:var(--space-6) var(--space-5);background:var(--c-bg-alt);border:var(--border);border-left:3px solid var(--c-accent);border-radius:var(--radius)}.formula__expr{display:flex;justify-content:center;justify-content:safe center;overflow-x:auto;overscroll-behavior-x:contain}.formula__line{font-family:var(--font-mono);font-size:clamp(1.0625rem,1rem + .6vw,1.375rem);font-weight:var(--fw-semibold);line-height:var(--lh-snug);white-space:nowrap;font-variant-numeric:tabular-nums}.formula__line var{color:var(--c-accent);font-weight:var(--fw-bold);font-style:normal}.formula__caption{margin-top:var(--space-3);font-size:var(--fs-small);color:var(--c-text-secondary);text-align:center}.deflist{margin:0}.deflist>div{display:flex;flex-wrap:wrap;gap:var(--space-1) var(--space-4);padding-block:var(--space-3);border-bottom:var(--border)}.deflist>div:first-child{padding-top:0}.deflist>div:last-child{border-bottom:0;padding-bottom:0}.deflist dt{flex:none;min-width:3.5rem;font-family:var(--font-mono);font-weight:var(--fw-bold)}.deflist dd{margin:0;flex:1 1 18rem;min-width:0;color:var(--c-text-secondary)}.deflist--variables dt var{font-weight:var(--fw-bold)}.worked-steps{margin:0;padding-left:var(--space-6);list-style:decimal}.worked-steps>li{padding-block:var(--space-3);border-bottom:var(--border)}.worked-steps>li+li{margin-top:0}.worked-steps>li:first-child{padding-top:0}.worked-steps>li:last-child{border-bottom:0;padding-bottom:0}.worked-steps>li::marker{color:var(--c-text-secondary);font-size:var(--fs-small);font-variant-numeric:tabular-nums}.worked-steps__math{display:block;overflow-x:auto;overscroll-behavior-x:contain;font-family:var(--font-mono);font-size:.9375em;font-variant-numeric:tabular-nums;white-space:nowrap;line-height:var(--lh-body)}.field{display:flex;flex-direction:column;gap:var(--space-2)}.field__label{font-size:var(--fs-small);font-weight:var(--fw-medium);line-height:var(--lh-snug);color:var(--c-text-secondary)}.field__hint{font-size:var(--fs-micro);color:var(--c-text-secondary)}.field__error{font-size:var(--fs-micro);color:var(--c-bad);font-weight:var(--fw-medium)}.input,.select{width:100%;min-height:var(--touch-min);padding:var(--space-2) var(--space-3);background:var(--c-bg);border:1px solid var(--c-border-input);border-radius:var(--radius);color:var(--c-text);line-height:var(--lh-snug);transition:border-color var(--transition),box-shadow var(--transition),background var(--transition)}.input:hover,.select:hover{border-color:var(--c-text-secondary)}.input:focus,.select:focus{background:var(--c-bg);border-color:var(--c-accent);box-shadow:var(--focus-halo)}.input:focus-visible,.select:focus-visible{outline:none}.input[aria-invalid=true]{border-color:var(--c-bad)}.select-wrap{position:relative;display:block}.select{appearance:none;padding-right:var(--space-7)}.select-wrap:after{content:"";position:absolute;right:var(--space-4);top:50%;width:calc(var(--dot-size) * .6);height:calc(var(--dot-size) * .6);border-right:2px solid var(--c-text-secondary);border-bottom:2px solid var(--c-text-secondary);transform:translateY(-75%) rotate(45deg);pointer-events:none}.select-wrap:has(.select:hover):after{border-color:var(--c-text)}.select-wrap:has(.select:focus):after{border-color:var(--c-accent)}.segmented{display:flex;flex-wrap:wrap;gap:3px;padding:3px;background:var(--c-bg-alt);border:1px solid var(--c-border);border-radius:var(--radius-segmented)}.segmented__option{flex:1 1 auto;display:flex;position:relative}.segmented input{position:absolute;width:1px;height:1px;opacity:0}.segmented label{flex:1;min-height:calc(var(--touch-min) - 6px);display:inline-flex;align-items:center;justify-content:center;padding:var(--space-2) var(--space-4);border-radius:var(--radius-segmented);color:var(--c-text-secondary);font-size:var(--fs-small);font-weight:var(--fw-medium);text-align:center;cursor:pointer;transition:background var(--transition),color var(--transition)}.segmented label:hover{background:var(--c-bg);color:var(--c-text)}.segmented input:checked+label{background:var(--c-accent);color:var(--c-text-on-accent);font-weight:var(--fw-semibold)}.segmented input:checked+label:hover{background:var(--c-accent-hover)}.segmented input:focus-visible+label{outline:var(--focus-ring);outline-offset:var(--focus-offset)}.segmented--stack{flex-direction:column;border-radius:var(--radius-segmented)}.segmented--stack label{border-radius:var(--radius-segmented);justify-content:flex-start;text-align:left}@container (max-width: 380px){.segmented--stack-narrow{flex-direction:column;border-radius:var(--radius-segmented)}.segmented--stack-narrow label{border-radius:var(--radius-segmented)}}.segmented input:disabled+label{opacity:.5;cursor:not-allowed}.segmented input:disabled+label:hover{background:none;color:var(--c-text-secondary)}.hero{background-color:var(--c-bg-alt)}.hero__text{max-width:var(--w-text)}.hero__text>*+*{margin-top:var(--space-4)}.hero__continuation,.hero__tool{margin-top:var(--space-6)}.calc{display:grid;gap:var(--space-5);align-content:start;padding:var(--space-5);background:var(--c-bg);border:var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}@media(min-width:768px){.calc{padding:var(--space-6)}}.calc fieldset{margin:0;padding:0;border:0;min-width:0}.calc legend{padding:0;margin-bottom:var(--space-2)}.calc-mode{container-type:inline-size}.calc-mode__desc{margin-top:var(--space-3);font-size:var(--fs-small);line-height:var(--lh-relaxed);color:var(--c-text-secondary)}@container (max-width: 380px){.calc-mode .segmented{flex-wrap:nowrap}.calc-mode .segmented label{padding-inline:var(--space-2)}}.calc__grid{display:grid;grid-template-columns:minmax(0,1fr);align-items:start;gap:var(--space-4) var(--space-6)}.calc__grid>*{min-width:0;container-type:inline-size}@media(min-width:1024px){.calc__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.calc fieldset:disabled .segmented,.calc .input:disabled,.calc .select:disabled{opacity:.5;cursor:not-allowed}.calc fieldset:disabled label{cursor:not-allowed}.input-unit{display:flex;gap:var(--space-2)}.input-unit>.input{flex:1 1 auto;min-width:0}.input-unit>.select-wrap{flex:0 0 9.5rem}.input-unit--voltage>.select-wrap{flex:1 1 0;min-width:0}.input-unit--voltage>.input{flex:1 1 0}.calc [hidden]{display:none!important}.field__note{min-height:var(--calc-size-note-h);font-size:var(--fs-micro);line-height:var(--lh-relaxed);color:var(--c-text-secondary)}@media(min-width:380px){.field__note{min-height:var(--calc-size-note-h-sm)}}@media(min-width:646px){.field__note{min-height:var(--calc-size-note-h-md)}}@media(min-width:1024px){.field__note{min-height:var(--calc-size-note-h-sm)}}.calc-adv{border-top:var(--border)}.calc-adv__toggle{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);width:100%;min-height:var(--touch-min);font-weight:var(--fw-semibold);cursor:pointer;list-style:none;transition:color var(--transition)}.calc-adv__toggle::-webkit-details-marker{display:none}.calc-adv__toggle:hover{color:var(--c-accent)}.calc-adv__toggle:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset)}.calc-adv__count{font-weight:var(--fw-normal);letter-spacing:0;text-transform:none;color:var(--c-text-secondary)}.calc-adv__marker{flex:none;width:var(--dot-size);height:var(--dot-size);margin-right:var(--space-2);border-right:2px solid var(--c-text-secondary);border-bottom:2px solid var(--c-text-secondary);transform:translateY(-25%) rotate(45deg);transition:transform var(--transition),border-color var(--transition)}.calc-adv[open] .calc-adv__marker,.calc-working[open] .calc-adv__marker{transform:translateY(25%) rotate(225deg)}.calc-adv__body{display:grid;grid-template-columns:minmax(0,1fr);align-items:start;gap:var(--space-5);padding-block:var(--space-4) var(--space-2)}.calc-adv__body>*{min-width:0;container-type:inline-size}@media(min-width:640px){.calc-adv__body{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:1024px){.calc-adv__body{grid-template-columns:repeat(3,minmax(0,1fr))}}.calc-adv__actions{grid-column:1 / -1}.field--hinted{position:relative;gap:0}.field__label--hinted{display:block;line-height:var(--touch-min);padding-right:calc(var(--touch-min) + var(--space-1))}.calc .field__label--hinted{margin-bottom:0}.field--hinted>:last-child:not(.hint){margin-top:var(--space-1)}.field--hinted .field__hint{margin-top:var(--space-2)}.hint__toggle{position:absolute;top:0;right:0;display:grid;place-items:center;width:var(--touch-min);height:var(--touch-min);border-radius:var(--radius-pill);color:var(--c-text-secondary);cursor:pointer;list-style:none;transition:color var(--transition),background-color var(--transition)}.hint__toggle::-webkit-details-marker{display:none}.hint__toggle:hover{color:var(--c-accent);background:var(--c-bg-alt)}.hint__toggle:focus-visible{outline:var(--focus-ring);outline-offset:calc(-1 * var(--focus-offset))}.hint[open]>.hint__toggle{color:var(--c-accent)}fieldset.field--hinted .hint__toggle{top:calc(-1 * var(--touch-min))}.hint__icon{display:block;width:20px;height:20px}.hint__text{margin-bottom:var(--space-2);padding:var(--space-2) var(--space-3);background:var(--c-bg-alt);border-radius:var(--radius-sm);font-size:var(--fs-small);line-height:var(--lh-relaxed);color:var(--c-text-secondary)}.calc__result{gap:var(--space-5)}.calc-answer{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-1);justify-items:stretch}.calc-answer__figure{font-size:var(--fs-figure);font-weight:var(--fw-bold);line-height:1;letter-spacing:var(--tracking-figure);font-variant-numeric:tabular-nums;overflow-wrap:break-word}@media(max-width:415px){.calc-answer__figure{min-height:calc(2em + 1px)}}@media(max-width:369px){.calc-answer>.result__label{min-height:var(--calc-answer-label-h)}}.calc-answer__unit[data-kind=word]{margin-left:.2em}.calc-answer__unit{font-size:.5em;font-weight:var(--fw-semibold);letter-spacing:0;color:var(--c-text-secondary)}.calc-figures{display:grid;gap:var(--space-3);grid-template-columns:repeat(2,minmax(0,1fr))}@media(min-width:640px){.calc-figures{grid-template-columns:repeat(4,minmax(0,1fr))}}.calc-figure{padding:var(--space-3);background:var(--c-bg);border-radius:var(--radius-sm)}.calc-figure>*+*{margin-top:var(--space-1)}.calc-figure .result__label{font-size:var(--fs-micro)}.calc-figure .result__figure{overflow-wrap:break-word;min-height:var(--calc-cell-h)}@media(min-width:370px){.calc-figure .result__figure{min-height:var(--calc-cell-h-sm)}}@media(min-width:542px){.calc-figure .result__figure{min-height:var(--calc-cell-h-lg)}}@media(min-width:640px){.calc-figure .result__figure{min-height:var(--calc-cell-h-sm)}}@media(min-width:996px){.calc-figure .result__figure{min-height:var(--calc-cell-h-lg)}}.calc-status{display:grid;grid-template-columns:minmax(0,1fr);justify-items:start;gap:var(--space-2);min-height:var(--calc-status-h);font-size:var(--fs-small);line-height:var(--lh-relaxed)}@media(min-width:560px){.calc-status{grid-template-columns:var(--calc-pill-w) minmax(0,1fr);align-items:center;gap:var(--space-3)}}.calc-status__pill{flex:none;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);width:var(--calc-pill-w);min-height:var(--calc-pill-h);padding:var(--space-1) var(--space-3);border-radius:var(--radius-pill);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);line-height:var(--lh-snug);white-space:nowrap}.calc-status__range{min-width:var(--calc-pill-label-w);text-align:center}.calc-status[data-band=invalid] .calc-status__range{visibility:hidden}@media(min-width:322px){.calc-status{min-height:var(--calc-status-h-xs)}}@media(min-width:410px){.calc-status{min-height:var(--calc-status-h-sm)}}@media(min-width:560px){.calc-status{min-height:var(--calc-status-h-md)}}@media(min-width:786px){.calc-status{min-height:var(--calc-status-h-lg)}}.calc-status__dot{flex:none;width:calc(var(--dot-size) * .8);height:calc(var(--dot-size) * .8);border-radius:var(--radius-pill);background:currentcolor}.calc-status__text{min-width:0}a.calc-status__text{color:var(--c-text);text-decoration-color:var(--c-border-input);text-underline-offset:.2em}a.calc-status__text:hover{color:var(--c-accent);text-decoration-color:currentcolor}a.calc-status__text:not([href]){text-decoration:none;cursor:default}:is(.calc-status,.calc-sticky)[data-band=ok] .calc-status__pill{color:var(--c-ok);background:var(--c-ok-tint)}:is(.calc-status,.calc-sticky)[data-band=warn] .calc-status__pill{color:var(--c-warn);background:var(--c-warn-tint)}:is(.calc-status,.calc-sticky)[data-band=bad] .calc-status__pill{color:var(--c-bad);background:var(--c-bad-tint)}:is(.calc-status,.calc-sticky)[data-band=invalid] .calc-status__pill{color:var(--c-bad);background:var(--c-bad-tint)}.calc-sticky[data-band=invalid] .calc-status__range{visibility:hidden}.calc-tools{display:grid;gap:var(--space-3)}.calc-copy{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-2) var(--space-3)}.calc-copy__button{min-height:var(--touch-min)}.calc-copy__status{font-size:var(--fs-small);color:var(--c-text-secondary)}.calc-working{border-top:var(--border)}.calc-working__summary{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);min-height:var(--touch-min);font-weight:var(--fw-semibold);cursor:pointer;list-style:none;transition:color var(--transition)}.calc-working__summary::-webkit-details-marker{display:none}.calc-working__summary:hover{color:var(--c-accent)}.calc-working__summary:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset)}.calc-working__steps{display:grid;gap:var(--space-2);margin:0 0 var(--space-2);padding:var(--space-4) var(--space-4) var(--space-4) var(--space-7);background:var(--c-bg-alt);border-radius:var(--radius);font-family:var(--font-mono);font-size:var(--fs-small);line-height:var(--lh-relaxed);overflow-wrap:anywhere}.calc-sticky{position:fixed;inset:auto 0 0;z-index:45;display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:var(--space-2) var(--gutter-x) calc(var(--space-2) + env(safe-area-inset-bottom,0px));background:var(--c-bg);border-top:var(--border);box-shadow:var(--shadow-overlay);transform:translateY(110%);visibility:hidden;transition:transform var(--transition),visibility 0s linear var(--transition)}.calc-sticky.is-visible{transform:none;visibility:visible;transition:transform var(--transition),visibility 0s}.ads-enabled .calc-sticky{bottom:calc(var(--ad-anchor-h) + env(safe-area-inset-bottom,0px))}.calc-sticky__figure{font-size:var(--fs-h3);font-weight:var(--fw-bold);letter-spacing:var(--tracking-h3);font-variant-numeric:tabular-nums}@media(min-width:1024px){.calc-sticky{display:none}}.calc-status[data-band=invalid] .calc-status__text{color:var(--c-bad);font-weight:var(--fw-medium)}.result{display:grid;grid-template-columns:minmax(0,1fr);gap:var(--space-4);align-content:start;min-height:var(--calc-result-h);padding:var(--space-5);background:var(--c-bg-alt);border-radius:var(--radius)}.result__figure{font-size:var(--fs-figure-sub);font-weight:var(--fw-bold);line-height:var(--lh-tight);letter-spacing:var(--tracking-h2);font-variant-numeric:tabular-nums}.result__label{font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--c-text-secondary)}.result__row{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-6)}.badge{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-3);border:1px solid currentcolor;border-radius:var(--radius-pill);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase}.badge--ok{color:var(--c-ok);background:var(--c-ok-bg)}.badge--warn{color:var(--c-warn);background:var(--c-warn-bg)}.badge--bad{color:var(--c-bad);background:var(--c-bad-bg)}.faq{display:grid;gap:var(--space-2)}.faq__item{border:var(--border);border-radius:var(--radius);padding-inline:var(--space-4);background:var(--c-bg);transition:background var(--transition),border-color var(--transition)}.faq__item[open]{background:var(--c-bg-alt);border-color:var(--c-border-strong)}.faq__q{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4);min-height:var(--touch-min);padding-block:var(--space-4);font-size:var(--fs-h3);font-weight:var(--fw-semibold);line-height:var(--lh-snug);cursor:pointer;list-style:none}.faq__q::-webkit-details-marker{display:none}.faq__q:hover{color:var(--c-accent)}.faq__q:focus-visible{outline:var(--focus-ring);outline-offset:calc(-1 * var(--focus-offset));border-radius:var(--radius)}.faq__q-text{min-width:0}.faq__marker{flex:none;width:var(--dot-size);height:var(--dot-size);margin-top:.3em;border-right:2px solid var(--c-text-secondary);border-bottom:2px solid var(--c-text-secondary);transform:rotate(45deg);transition:transform var(--transition),border-color var(--transition)}.faq__q:hover .faq__marker{border-color:var(--c-accent)}.faq__item[open]>.faq__q .faq__marker{transform:rotate(225deg)}.faq__a{padding-bottom:var(--space-4);max-width:var(--measure);color:var(--c-text-secondary)}.faq__q:focus-visible{outline-offset:calc(-1 * var(--focus-offset))}.faq__a>*+*{margin-top:var(--space-3)}.page-note>.container>*+*{margin-top:var(--space-2)}.page-note time{white-space:nowrap}.site-footer{padding-block:var(--space-8) var(--space-6);background:var(--c-footer-bg);font-size:var(--fs-small);color:var(--c-footer-text)}.site-footer__cols{display:grid;gap:var(--space-6);grid-template-columns:1fr}@media(min-width:640px){.site-footer__cols{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(min-width:960px){.site-footer__cols{grid-template-columns:repeat(4,minmax(0,1fr))}}.site-footer__heading{margin-bottom:var(--space-3);color:var(--c-footer-heading);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase}.site-footer__list{list-style:none;margin:0;padding:0}.site-footer__list li+li{margin-top:var(--space-2)}.site-footer__list a{color:var(--c-footer-link);text-decoration:none;transition:color var(--transition)}.site-footer__list a:hover{color:var(--c-footer-heading);text-decoration:underline}.site-footer__legal{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:var(--space-2) var(--space-5);margin-top:var(--space-6);padding-top:var(--space-5);border-top:1px solid var(--c-footer-border);font-size:var(--fs-micro);line-height:var(--lh-relaxed)}.site-footer__legal a{color:var(--c-footer-link);text-decoration-color:var(--c-footer-border);transition:color var(--transition)}.site-footer__legal a:hover{color:var(--c-footer-heading);text-decoration-color:currentcolor}.site-footer :focus-visible{outline:2px solid var(--c-footer-heading);outline-offset:var(--focus-offset)}.table--nav a{color:var(--c-accent);text-decoration:underline;text-underline-offset:.18em;text-decoration-skip-ink:auto}.table--nav a:visited{color:var(--c-accent-visited)}.table--nav a:hover{color:var(--c-accent-hover);text-decoration-thickness:2px}.table--nav a:active{color:var(--c-accent-active)}@media(max-width:767px){.table-wrap:has(.table--nav){border:0;border-radius:0;overflow:visible}.table--nav,.table--nav tbody,.table--nav tr,.table--nav th,.table--nav td{display:block}.table--nav thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.table--nav tr{padding:var(--space-4);border:var(--border);border-radius:var(--radius)}.table--nav tr+tr{margin-top:var(--space-2)}.table--nav th,.table--nav td{padding:0;border-bottom:0}.table--nav th+td,.table--nav td+td{margin-top:var(--space-3)}.table--nav [data-label]:before{content:attr(data-label);display:block;margin-bottom:var(--space-1);color:var(--c-text-secondary);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase}.table--nav td:last-child{font-size:var(--fs-body)}.table--nav td:last-child a{display:inline-flex;align-items:center;min-height:var(--touch-min)}}.card-grid--dense{gap:var(--space-2);grid-template-columns:repeat(2,minmax(0,1fr))}@media(min-width:960px){.card-grid--dense.grid--4{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(min-width:1200px){.card-grid--dense.grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}}.card-grid--dense .card{padding:var(--space-3);gap:0}.card-grid--dense .card__title{font-size:var(--fs-body)}.card-grid--dense .card--link .card__title{padding-right:var(--space-4)}.card-groups{display:grid;gap:var(--space-6)}.card-groups__label{padding-bottom:var(--space-2);margin-bottom:var(--space-3);border-bottom:var(--border);color:var(--c-text-secondary);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase}.page-toc{padding:var(--space-4) var(--space-5);background:var(--c-bg-alt);border:var(--border);border-radius:var(--radius)}.page-toc__title{margin-bottom:var(--space-3);color:var(--c-text-secondary);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase}.page-toc__list{display:grid;gap:var(--space-1) var(--space-5);margin:0;padding:0;list-style:none}@media(min-width:640px){.page-toc__list{grid-template-columns:repeat(2,minmax(0,1fr))}}.page-toc__list>li{margin-top:0}.page-toc__list a{display:flex;align-items:center;min-height:var(--touch-min);padding-block:var(--space-1);color:var(--c-accent);font-size:var(--fs-small);line-height:var(--lh-snug);text-decoration:none}.page-toc__list a:hover{color:var(--c-accent-hover);text-decoration:underline}.page-toc__list a:focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset)}.callout--rule{border-left-color:var(--c-accent);background:var(--c-bg-alt);line-height:var(--lh-body)}.concept-row{margin-bottom:var(--rhythm-h2)}.card-groups__label{display:flex;align-items:center;gap:var(--space-2)}.card-groups__icon{flex:none;width:16px;height:16px;color:var(--c-accent)}.jump-cta{display:flex}.prose+.jump-cta{margin-top:var(--space-5)}.jump-cta__arrow{transition:transform var(--transition);will-change:transform}.jump-cta__link:hover .jump-cta__arrow{transform:translate(var(--arrow-travel))}.prose .btn,.prose .btn:hover,.prose .btn:active,.prose .btn:visited{text-decoration:none}.prose .btn--primary,.prose .btn--primary:hover,.prose .btn--primary:active,.prose .btn--primary:visited{color:var(--c-text-on-accent)}.prose .btn--secondary,.prose .btn--secondary:visited{color:var(--c-text)}.prose .btn--secondary:hover,.prose .btn--quiet,.prose .btn--quiet:visited{color:var(--c-accent)}.calc-binding{margin:var(--space-3) 0 0;color:var(--c-text-secondary);font-size:var(--fs-small);line-height:var(--lh-relaxed)}@media(min-width:1024px){.table-wrap:has(.table--sticky){overflow:visible}.table--sticky thead th{position:sticky;top:var(--header-h);z-index:1}}.chart-page__after-table{margin-top:var(--rhythm-h2)}@media print{.site-header,.site-footer,.breadcrumbs,.ad-rail,.ad-slot,.ad-anchor,.page-toc,.jump-cta,.skip-link{display:none!important}.page,.shell,.container,.container--text,.container--wide{display:block!important;max-width:none!important;width:auto!important;padding:0!important;margin:0!important}:root{--rhythm-section: 18pt}body{background:#fff;color:#000;font-size:10pt;line-height:1.35}h1{font-size:18pt}h2{font-size:13pt}.section{padding-block:6pt!important}.section--ruled+.section--ruled{border-top:.5pt solid #999}.section-head__bar{display:none}.table-wrap{overflow:visible!important;border:0}.table--sticky thead th{position:static!important}.table{font-size:9pt;page-break-inside:auto}.table thead{display:table-header-group}.table tr{page-break-inside:avoid}.table th,.table td{padding:2pt 4pt;border-bottom:.5pt solid #ccc}.table thead th{background:#eee!important;color:#000;-webkit-print-color-adjust:exact;print-color-adjust:exact}a{color:#000;text-decoration:none}details{display:none}.prose-note{font-size:8pt;color:#333}}.table .col--emphasis{background:var(--c-bg-alt);border-left:1px solid var(--c-border-strong)}.table thead th.col--emphasis{background:var(--c-bg-subtle)}.table--zebra tbody tr:nth-child(2n) .col--emphasis{background:var(--c-bg-subtle)}.table .col--emphasis strong{font-weight:var(--fw-semibold)}.table--reference .table__tier-label{border-bottom:var(--border);color:var(--c-text);text-align:center}.table--reference thead th{padding-top:var(--space-3);padding-bottom:var(--space-3);vertical-align:middle}.table--reference thead tr:last-child th{border-bottom:2px solid var(--c-border-strong)}.table--reference .table__tier th[rowspan]{border-bottom:2px solid var(--c-border-strong)}.table--reference th,.table--reference td{padding:var(--space-4) var(--space-5);vertical-align:middle}.table--reference tbody th{background:var(--c-bg-subtle);color:var(--c-text);font-size:var(--fs-body);font-weight:var(--fw-semibold);border-right:var(--border)}.table--reference tbody tr{background:none}.table--reference .table__group th{padding-top:var(--space-3);padding-bottom:var(--space-3);border-right:0;background:var(--c-bg-band);border-top:2px solid var(--c-border-strong);border-bottom:var(--border);color:var(--c-text-secondary);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase;white-space:nowrap}.table--reference tbody tr:first-child .table__group th,.table--reference .table__group:first-child th{border-top:0}.table--reference .table__group:hover{background:none}.table--reference .table__group th{position:static}.table--reference .table__group th>span{position:sticky;left:var(--space-5)}@media(max-width:1023px){.table--sticky tbody th,.table--sticky thead tr:first-child th:first-child{position:sticky;left:0;z-index:1;background:var(--c-bg);border-right:1px solid var(--c-border)}.table--reference.table--sticky tbody tr:not(.table__group) th{background:var(--c-bg-subtle)}.table--sticky thead tr:first-child th:first-child{background:var(--c-bg-alt);z-index:2}.table--zebra.table--sticky tbody tr:nth-child(2n) th{background:var(--c-bg-alt)}}.amp-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-3);margin:0;padding:0;list-style:none}@media(min-width:768px){.amp-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}.amp-cards>li{margin-top:0}.amp-card{height:100%;padding:var(--space-4);background:var(--c-bg);border:var(--border);border-radius:var(--radius-md)}.amp-card__size{font-size:var(--fs-h3);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-h3);line-height:var(--lh-snug)}.amp-card__figure{margin-top:var(--space-2);font-size:var(--fs-figure-sub);font-weight:var(--fw-semibold);font-variant-numeric:tabular-nums;line-height:1.1}.amp-card__unit{font-size:var(--fs-small);font-weight:var(--fw-regular);color:var(--c-text-secondary)}.amp-card__note{margin-top:var(--space-2);padding-top:var(--space-2);border-top:var(--border);font-size:var(--fs-small);line-height:var(--lh-snug);color:var(--c-text-secondary)}.amp-card__note strong{color:var(--c-text);font-weight:var(--fw-semibold)}.reasons{display:grid;gap:var(--space-4)}.reasons>div+div{padding-top:var(--space-4);border-top:var(--border)}.reasons__label{margin-bottom:var(--space-1);font-size:var(--fs-small);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--c-text-secondary)}.print-note{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-3);font-size:var(--fs-small);color:var(--c-text-secondary)}.print-note__icon{flex:none;width:18px;height:18px;color:var(--c-accent)}@media print{.print-note{display:none}}.page-header{position:relative;padding-block:var(--space-6) var(--space-7);background:var(--c-anchor);box-shadow:0 0 0 100rem var(--c-anchor);clip-path:inset(0 -100rem);color:var(--c-footer-text)}.page-header__crumbs{margin-bottom:var(--space-4)}.page-header .breadcrumbs__list,.page-header .breadcrumbs a{color:var(--c-footer-text)}.page-header .breadcrumbs a:hover{color:#fff}.page-header .breadcrumbs a:focus-visible{outline:2px solid #FFFFFF;outline-offset:var(--focus-offset)}.page-header .breadcrumbs__current{color:#fff}.page-header .breadcrumbs li:after{color:var(--c-footer-border)}.page-header__title{color:#fff}.page-header__desc{max-width:var(--w-text);margin-top:var(--space-3);color:var(--c-footer-text);font-size:var(--fs-lead);line-height:var(--lh-snug)}.page-header__stats{display:flex;flex-wrap:wrap;gap:var(--space-3) var(--space-6);margin:var(--space-5) 0 0;padding:0;list-style:none}.page-header__stats>li{display:flex;flex-direction:column;gap:2px;margin-top:0}.page-header__stat-value{color:var(--c-accent-on-dark);font-size:var(--fs-h3);font-weight:var(--fw-semibold);line-height:var(--lh-snug);font-variant-numeric:tabular-nums}.page-header__stat-label{color:var(--c-footer-text);font-size:var(--fs-micro);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase}.page-header+.section{padding-top:var(--rhythm-section)}@media print{.page-header{background:none;box-shadow:none;color:#000}.page-header__title{color:#000}.page-header__desc,.page-header__stats{display:none}}.ampacity-chart{margin:var(--rhythm-h2) 0 0}.ampacity-chart svg{display:block;width:100%;height:auto}.ampacity-chart__bar--cu{fill:var(--c-accent)}.ampacity-chart__bar--al{fill:#7c766b}.ampacity-chart__size{fill:var(--c-text);font-family:var(--font-sans);font-size:13px;font-weight:var(--fw-medium)}.ampacity-chart__value{fill:var(--c-text-secondary);font-family:var(--font-sans);font-size:12px;font-variant-numeric:tabular-nums}.ampacity-chart__legend{fill:var(--c-text-secondary);font-family:var(--font-sans);font-size:12px;font-weight:var(--fw-semibold)}@media(max-width:767px){.ampacity-chart__size{font-size:21px}.ampacity-chart__value,.ampacity-chart__legend{font-size:19px}}@media print{.ampacity-chart{break-inside:avoid}}