:root{
  --bg:#fbfaf7;--surface:#ffffff;--sunk:#f3f1ec;--ink:#16181d;--ink-2:#454a54;--ink-3:#646a78;--line:#e4e1da;--line-2:#d3cfc6;--field:#8f8a80;--on-accent:#ffffff;
  --accent:#b4541a;--accent-ink:#8f3f0f;--accent-soft:#fbeee5;--ok:#1f7a4d;--ok-soft:#e7f4ec;--warn:#9a5b00;--warn-soft:#fdf3dd;
  --radius:12px;--radius-s:8px;--shadow:0 1px 2px rgba(22,24,29,.05),0 4px 16px rgba(22,24,29,.05);
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#121317;--surface:#1a1c21;--sunk:#202329;--ink:#eceae5;--ink-2:#c3c1bb;--ink-3:#9a9891;--line:#2c2f36;--line-2:#3a3e46;--field:#70747d;--on-accent:#16181d;
  --accent:#e0874c;--accent-ink:#f0a574;--accent-soft:#2c1f17;--ok:#5cc28e;--ok-soft:#16261d;--warn:#e5b04f;--warn-soft:#2a2213;
  --shadow:0 1px 2px rgba(0,0,0,.3);color-scheme:dark;}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
img,svg{display:block;max-width:100%}
a{color:var(--accent-ink);text-underline-offset:2px;text-decoration-thickness:from-font;text-decoration-skip-ink:auto}
[id]{scroll-margin-top:16px}
h1,h2,h3{line-height:1.2;letter-spacing:-.015em;margin:0 0 .5em;text-wrap:balance}
h1{font-size:clamp(1.65rem,1.2rem + 2vw,2.35rem)}
h2{font-size:1.4rem;margin-top:2.2rem}
h3{font-size:1.1rem;margin-top:1.6rem}
p,ul,ol{margin:0 0 1rem}
code,.mono{font-family:var(--mono);font-size:.92em}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.skip{position:absolute;inset-inline-start:-999px}.skip:focus{inset-inline-start:16px;top:8px;background:var(--surface);padding:8px 12px;z-index:9}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.site-head{border-bottom:1px solid var(--line);background:var(--surface)}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:1.08rem;letter-spacing:-.01em}
.brand b{color:var(--accent);font-weight:700}
.nav{display:flex;gap:4px;flex-wrap:wrap;margin:0 -8px}
.nav a{color:var(--ink-2);text-decoration:none;padding:8px;border-radius:6px;font-size:.95rem}
.nav a[aria-current]{color:var(--ink);background:var(--sunk)}
@media (hover:hover){.nav a:hover{color:var(--ink);background:var(--sunk)}}
@media (max-width:640px){.head-row{padding:8px 16px}.nav{width:100%;overflow-x:auto;flex-wrap:nowrap}.nav a{white-space:nowrap;font-size:.9rem}}

.crumbs{display:flex;gap:8px;flex-wrap:wrap;font-size:.85rem;color:var(--ink-3);margin:20px 0 12px}
.crumbs a{color:var(--ink-3)}
.lede{font-size:1.08rem;color:var(--ink-2);max-width:68ch;text-wrap:pretty}
.meta{font-size:.85rem;color:var(--ink-3)}
.muted{color:var(--ink-3)}
.kicker{font-size:.8rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-ink);margin:0 0 6px}

/* calculator page */
.page{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:64px}
@media (min-width:1100px){.page.has-side{grid-template-columns:minmax(0,1fr) 300px}}
.side{display:none}
@media (min-width:1100px){.side{display:block}.side-sticky{position:sticky;top:16px;display:grid;gap:16px}}
.prose{max-width:72ch}
.prose li{margin-bottom:.35rem}
.tool{display:grid;gap:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);overflow:hidden;margin:8px 0 20px}
@media (min-width:860px){.tool{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}}
.tool form{padding:20px;display:grid;gap:14px;align-content:start}
.tool .result{padding:20px;background:var(--sunk);border-top:1px solid var(--line)}
@media (min-width:860px){.tool .result{border-top:0;border-inline-start:1px solid var(--line)}}
.result:focus{outline:none}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px}
@media (max-width:640px){.lede{font-size:1rem}.tool form,.tool .result{padding:16px}}
.field{display:grid;gap:4px;min-width:0;align-content:start}
.lbl{font-size:.85rem;font-weight:600;color:var(--ink-2)}
.hint{display:block;font-size:.78rem;color:var(--ink-3);font-weight:400}
.inp{display:flex;align-items:stretch;border:1px solid var(--field);border-radius:var(--radius-s);background:var(--surface);overflow:hidden}
.inp:focus-within{border-color:var(--accent);outline:2px solid var(--accent);outline-offset:1px}
.inp input,.inp select{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:inherit;font-size:16px;padding:9px 10px;font-variant-numeric:tabular-nums}
.inp input:focus,.inp select:focus{outline:none}
.unit{display:flex;align-items:center;padding:0 10px;color:var(--ink-2);font-size:.85rem;background:var(--sunk);border-inline-start:1px solid var(--line);white-space:nowrap}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;cursor:pointer}
.check input{margin-top:4px;accent-color:var(--accent);width:16px;height:16px}
.seg{border:0;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.seg legend{margin-bottom:4px;width:100%}
.seg label{cursor:pointer}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg span{display:inline-block;padding:9px 14px;border:1px solid var(--field);border-radius:999px;font-size:.88rem;background:var(--surface)}
.seg input:checked+span{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.seg input:focus-visible+span{outline:2px solid var(--accent);outline-offset:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;border:0;border-radius:var(--radius-s);background:var(--accent);color:var(--on-accent);font:inherit;font-weight:600;padding:10px 18px;cursor:pointer;text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--field)}
@media (hover:hover){.btn:hover{background:var(--accent-ink)}.btn.ghost:hover{background:var(--sunk)}}
@media (prefers-reduced-motion:no-preference){.btn{transition:scale .15s ease-out}.btn:active{scale:.96}}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.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}

/* generator load list */
.loads{display:grid;gap:4px;border:1px solid var(--line);border-radius:var(--radius-s);padding:4px}
/* Desktop: a fixed-height list, with shadows that appear at whichever edge has more to scroll. */
@media (min-width:860px){.loads{max-height:440px;overflow:auto;overscroll-behavior:contain;
  background:linear-gradient(var(--surface) 30%,transparent) center top,linear-gradient(transparent,var(--surface) 70%) center bottom,radial-gradient(farthest-side at 50% 0,rgba(0,0,0,.16),transparent) center top,radial-gradient(farthest-side at 50% 100%,rgba(0,0,0,.16),transparent) center bottom;
  background-repeat:no-repeat;background-size:100% 40px,100% 40px,100% 14px,100% 14px;background-attachment:local,local,scroll,scroll;background-color:var(--surface)}}
.grp{border:0;margin:0;padding:0;min-width:0;display:grid;gap:2px}
.grp legend{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);padding:10px 8px 4px}
.load{display:grid;grid-template-columns:1fr auto;align-items:center;gap:8px;padding:6px 8px;border-radius:4px}
@media (hover:hover){.load:hover{background:var(--sunk)}}
.load.is-on{background:var(--accent-soft)}
.load .check{font-size:.92rem;min-height:28px;align-items:center}
.load .check input{margin-top:0}
.load .nums{font-size:.8rem;color:var(--ink-3);font-variant-numeric:tabular-nums;white-space:nowrap}
.load .edit{display:none;grid-column:1/-1;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding-block:4px 6px;padding-inline-start:26px}
.load.is-on .edit{display:grid}
.load.is-on .nums{display:none}
.load .edit .inp input{padding:6px 8px}
.load .edit .lbl{font-size:.75rem}
.extra{display:grid;grid-template-columns:2fr 1fr 1fr;gap:8px}
@media (max-width:420px){.extra{grid-template-columns:1fr 1fr}.extra .field:first-child{grid-column:1/-1}.load .edit{padding-inline-start:0}}

/* results */
.res-main{margin:0 0 14px;display:grid;gap:2px}
.res-value{font-size:clamp(1.9rem,1.5rem + 1.8vw,2.6rem);font-weight:750;letter-spacing:-.02em;color:var(--accent-ink);font-variant-numeric:tabular-nums;line-height:1.1}
.res-label{color:var(--ink-2);font-size:.95rem}
.res-grid{margin:0 0 12px;display:grid;gap:0;border-top:1px solid var(--line)}
.res-grid .r{display:flex;justify-content:space-between;gap:16px;padding:8px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.res-grid dt{color:var(--ink-2)}
.res-grid dd{margin:0;text-align:end;font-weight:600;font-variant-numeric:tabular-nums}
.res-grid.compact .r{padding:5px 0;font-size:.85rem}
.res-note{font-size:.85rem;margin:8px 0 0;padding:8px 10px;border-radius:var(--radius-s);background:var(--surface);border:1px solid var(--line);color:var(--ink-2)}
.res-note.warn{background:var(--warn-soft);border-color:transparent;color:var(--ink)}
.res-note.ok{background:var(--ok-soft);border-color:transparent;color:var(--ink)}
.res-note strong{font-weight:700}

/* content */
.callout{border-inline-start:3px solid var(--accent);background:var(--accent-soft);padding:12px 16px;border-start-end-radius:var(--radius-s);border-end-end-radius:var(--radius-s);margin:0 0 1rem;max-width:72ch}
.callout p:last-child{margin:0}
.safety{border-inline-start-color:var(--warn);background:var(--warn-soft)}
.formula{font-family:var(--mono);font-size:.92rem;background:var(--sunk);border:1px solid var(--line);border-radius:var(--radius-s);padding:12px 14px;overflow-x:auto;white-space:pre;max-width:72ch}
.tbl-wrap{overflow-x:auto;margin:0 0 1rem;border:1px solid var(--line);border-radius:var(--radius-s);max-width:100%}
table{border-collapse:collapse;width:100%;font-size:.9rem;font-variant-numeric:tabular-nums}
th,td{text-align:start;padding:8px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--sunk);font-weight:650;color:var(--ink-2);font-size:.82rem;white-space:nowrap}
tr:last-child td{border-bottom:0}
td.n,th.n{text-align:end}
tr.hl td{background:var(--accent-soft);font-weight:600}
caption{caption-side:bottom;text-align:start;padding:8px 12px;font-size:.8rem;color:var(--ink-3)}
.toc{border:1px solid var(--line);border-radius:var(--radius-s);padding:12px 16px;margin:0 0 1.5rem;max-width:72ch;background:var(--surface)}
.toc-h{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin:0 0 4px}
.toc ol{margin:0;padding-inline-start:1.25rem}
.toc li{margin:2px 0;font-size:.95rem}
.adv{border-top:1px solid var(--line);padding-top:10px}
.adv summary{cursor:pointer;font-size:.88rem;font-weight:600;color:var(--ink-2);padding:4px 0}
.adv[open] summary{margin-bottom:10px}
.trust{margin:-4px 0 12px}
.faq details{border-bottom:1px solid var(--line);padding:12px 0;max-width:72ch}
.faq summary{cursor:pointer;font-weight:600;list-style-position:outside}
.faq details>div{padding-top:8px;color:var(--ink-2)}
.faq details>div p:last-child{margin:0}

/* index: the site's list of tools and guides. Name links, one line says what it answers. */
.index{list-style:none;margin:0 0 1rem;padding:0;display:grid;grid-template-columns:minmax(0,1fr);column-gap:32px;border-top:1px solid var(--line)}
@media (min-width:760px){.index{grid-template-columns:repeat(2,minmax(0,1fr))}}
.index li{display:grid;gap:2px;padding:12px 0;border-bottom:1px solid var(--line)}
.index a{font-weight:600;text-decoration:none}
@media (hover:hover){.index a:hover{text-decoration:underline}}
.index span{font-size:.9rem;color:var(--ink-2);text-wrap:pretty}
.group{margin-top:40px}
.group h2{margin:0 0 4px}
.group-note{color:var(--ink-2);margin:0 0 12px;max-width:68ch}
.price-snap{max-width:420px}
.related{border:1px solid var(--line);border-radius:var(--radius);padding:16px;background:var(--surface)}
.related h2{font-size:.95rem;margin:0 0 8px}
.related a{display:block;padding:6px 0;border-top:1px solid var(--line);text-decoration:none;font-size:.92rem}
.related a:first-of-type{border-top:0}

/* home */
.hero{padding:32px 0 8px}
.hero .meta{margin:0}
.finder{margin:24px 0 8px;padding-top:20px;border-top:1px solid var(--line)}
.finder-h{font-size:1.15rem;margin:0 0 12px}
.finder-search{max-width:520px;margin:0 0 16px}
.finder-search .meta{margin:8px 0 0}
.tasks{display:grid;gap:8px 24px}
@media (min-width:760px){.tasks{grid-template-columns:repeat(3,minmax(0,1fr))}}
.task-col h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;margin:8px 0 4px}
.task-col h3 a{color:var(--ink-3);text-decoration:none}
.task-col ul{list-style:none;margin:0;padding:0}
.task-col li a{display:block;padding:8px 0;border-top:1px solid var(--line);font-size:.95rem}
.task-col li:first-child a{border-top:0}
.task-col li[hidden],.task-col[hidden]{display:none}
.hero h1{font-size:clamp(1.75rem,1.3rem + 2vw,2.5rem);max-width:30ch}
.hero .lede{font-size:1.15rem}

/* email + ads */
.subscribe{border:1px solid var(--line);border-radius:var(--radius);padding:16px;background:var(--surface);margin:24px 0;max-width:72ch}
.subscribe label{font-weight:600;display:block;margin-bottom:8px}
.sub-row{display:flex;gap:8px;flex-wrap:wrap}
.sub-row input{flex:1 1 220px;border:1px solid var(--field);border-radius:var(--radius-s);padding:10px;font:inherit;font-size:16px;background:var(--surface);color:var(--ink)}
.sub-fine{font-size:.8rem;color:var(--ink-3);margin:8px 0 0}
.ad{margin:16px 0 24px}
.ad-inline{min-height:280px}
.ad-side{min-height:600px}
.ad-tag{display:block;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-3);margin-bottom:4px}

.site-foot{border-top:1px solid var(--line);background:var(--surface);margin-top:48px;padding:32px 0 16px;font-size:.9rem}
.foot-grid{display:grid;gap:24px}
@media (min-width:760px){.foot-grid{grid-template-columns:2fr 1fr 1fr}}
.foot-grid p{color:var(--ink-2);max-width:48ch}
.foot-grid nav{display:grid;gap:4px;align-content:start}
.foot-grid h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-3);margin:0 0 4px}
.foot-grid nav a{color:var(--ink-2);text-decoration:none;padding-block:4px}
@media (hover:hover){.foot-grid nav a:hover{color:var(--ink);text-decoration:underline}}
.foot-base{border-top:1px solid var(--line);margin-top:24px;padding-top:16px;color:var(--ink-3);font-size:.8rem}
.foot-base p{margin:0}
.more{display:block}
@media (min-width:1100px){.more{display:none}}
/* Mobile: a bar that keeps the answer visible while you edit inputs far above the result. */
.peek{position:fixed;inset-inline:12px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:5;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 14px;border-radius:var(--radius);background:var(--ink);color:var(--bg);text-decoration:none;box-shadow:0 6px 24px rgba(0,0,0,.25)}
.peek[hidden]{display:none}
.peek b{font-size:1.15rem;font-variant-numeric:tabular-nums;white-space:nowrap}
.peek span{font-size:.85rem;opacity:.85;text-wrap:pretty}
.peek i{font-style:normal;font-size:.85rem;font-weight:600;white-space:nowrap}
@media (min-width:860px){.peek{display:none!important}}
/* Keep a focused field from scrolling in behind the bar (WCAG 2.4.11). */
@media (max-width:859px){html:has(.peek:not([hidden])){scroll-padding-bottom:88px}body:has(.peek:not([hidden])){padding-bottom:80px}}
@media (forced-colors:active){.inp:focus-within,.seg input:focus-visible+span{outline-color:Highlight}.btn{border:1px solid ButtonText}}
@media print{.site-head,.site-foot,.ad,.side,.subscribe{display:none}}