:root{
  --paper:#F6F8F7; --ink:#1C2A33; --sea:#2D5B6B; --sea-soft:#E3ECEE; --flint:#5E676C; --rule:#D5DCDE; --barley:#B58A12; --field:#FFFFFF;
  --sans:"Atkinson Hyperlegible", "Segoe UI", Arial, sans-serif;
  --serif:"Source Serif 4", Georgia, "Times New Roman", serif;
  box-sizing:border-box; padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#141C21; --ink:#E6ECEE; --sea:#8FC0CF; --sea-soft:#1E2B31; --flint:#A3ADB2; --rule:#2C3A41; --barley:#E0B84A; --field:#1A242A;}}
:root[data-theme="dark"]{--paper:#141C21; --ink:#E6ECEE; --sea:#8FC0CF; --sea-soft:#1E2B31; --flint:#A3ADB2; --rule:#2C3A41; --barley:#E0B84A; --field:#1A242A;}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:19px;line-height:1.6}
.wrap{max-width:1040px;margin:0 auto;padding:48px 24px 120px}
article{max-width:640px}
h1{font-family:var(--sans);font-weight:700;font-size:clamp(30px,5vw,44px);line-height:1.15;margin:0 0 20px;letter-spacing:-0.01em}
h2{font-family:var(--sans);font-weight:700;font-size:26px;line-height:1.25;margin:56px 0 12px}
h2.first{margin-top:8px}
[hidden]{display:none!important}
h3{font-family:var(--sans);font-weight:700;font-size:20px;margin:0 0 6px}
p{margin:0 0 18px}
.byline{font-family:var(--sans);font-size:16px;color:var(--flint);margin-bottom:36px}
.figs{list-style:none;padding:0;margin:28px 0 32px;border-top:1px solid var(--rule)}
.figs li{display:grid;grid-template-columns:8.5rem 1fr;gap:18px;align-items:baseline;padding:16px 0;border-bottom:1px solid var(--rule)}
.figs b{font-family:var(--sans);font-size:28px;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--sea);text-align:right}
.figs span{font-size:18px}
.note{font-family:var(--sans);font-size:15px;color:var(--flint)}
.check{display:grid;grid-template-columns:minmax(0,640px) minmax(0,300px);gap:48px;align-items:start;margin-top:8px}
fieldset{border:0;padding:28px 0;margin:0;border-top:1px solid var(--rule)}
legend{padding:0}
.intro{font-size:17px;color:var(--flint);margin:4px 0 18px}
label{display:block;font-family:var(--sans);font-size:17px;margin:14px 0 6px}
.hint{display:block;font-size:14px;color:var(--flint);font-weight:400}
.money{position:relative;max-width:260px}
.money::before{content:"£";position:absolute;left:14px;top:50%;transform:translateY(-50%);font-family:var(--sans);color:var(--flint)}
input[type=number]{width:100%;max-width:260px;font:inherit;font-family:var(--sans);font-size:19px;padding:10px 14px;border:1.5px solid var(--rule);border-radius:6px;background:var(--field);color:var(--ink)}
.money input{padding-left:30px}
input:focus-visible,input[type=range]:focus-visible,a:focus-visible{outline:3px solid var(--sea);outline-offset:2px}
input[type=range]{width:100%;max-width:360px;accent-color:var(--sea)}
.share{font-family:var(--sans);font-size:17px}
.ledger{position:sticky;top:calc(24px + env(safe-area-inset-top,0px));background:var(--field);border:1.5px solid var(--ink);border-radius:4px;padding:22px 22px 18px;font-family:var(--sans)}
.ledger h3{font-size:17px;margin-bottom:12px}
.row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--rule);font-size:16px}
.row output{font-variant-numeric:tabular-nums;white-space:nowrap}
.total{display:flex;justify-content:space-between;align-items:baseline;margin-top:14px;padding-top:12px;border-top:3px double var(--ink)}
.total span{font-size:16px}
.total output{font-size:32px;font-weight:700;font-variant-numeric:tabular-nums}
.year{font-size:15px;color:var(--flint);text-align:right;margin-top:2px}
.after{margin-top:40px;max-width:640px}
.lead{font-family:var(--sans);font-size:19px;border-left:4px solid var(--sea);padding-left:16px;margin:0 0 24px}
textarea{width:100%;font:inherit;font-family:var(--sans);font-size:18px;padding:10px 14px;border:1.5px solid var(--rule);border-radius:6px;background:var(--field);color:var(--ink);resize:vertical}
textarea:focus-visible,.button:focus-visible{outline:3px solid var(--sea);outline-offset:2px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.cta{margin:16px 0 8px}
.brandbar{margin:0 0 36px}
.wordmark{font-family:var(--sans);font-weight:700;font-size:20px;color:var(--sea);letter-spacing:0.01em}
.hero-cta{margin:0 0 32px}
html{scroll-behavior:smooth}
.button{display:inline-block;background:var(--sea);color:var(--paper);font-family:var(--sans);font-weight:700;font-size:18px;text-decoration:none;padding:12px 20px;border-radius:6px}
.prompt p+p{margin-top:12px}
h3.sub{font-size:18px;color:var(--flint);margin:28px 0 0}
.figs sup{font-size:12px;line-height:0}
.figs sup a{text-decoration:none}
.sources{padding-left:20px;margin:0 0 16px}
.sources li{margin:0 0 6px}
.tips{margin:12px 0 0;padding-left:22px}
.brands{margin:48px 0 8px}
.brands h3{font-size:16px;color:var(--flint);font-weight:400;margin-bottom:14px}
.track-wrap{overflow:hidden;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.track{display:flex;gap:56px;list-style:none;margin:0;padding:18px 0;width:max-content;animation:slide 28s linear infinite}
.track li{font-family:var(--sans);font-size:22px;font-weight:700;color:var(--flint);white-space:nowrap}
.track-wrap:hover .track{animation-play-state:paused}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.track{animation:none;flex-wrap:wrap;width:auto}.track li[aria-hidden="true"]{display:none}}
.tips li{margin:0 0 12px}
.prompt{background:var(--sea-soft);border-left:4px solid var(--sea);padding:18px 20px;margin:24px 0}
.prompt p{margin:0}
a{color:var(--sea)}
footer{margin-top:56px;padding-top:20px;border-top:1px solid var(--rule)}
.mobilebar{display:none}
@media (max-width:860px){
  .figs li{grid-template-columns:6.5rem 1fr;gap:12px}
  .figs b{font-size:22px}
  .check{grid-template-columns:1fr;gap:0}
  .ledger{position:static;margin-top:28px}
  .mobilebar{display:flex;justify-content:space-between;align-items:baseline;position:fixed;left:0;right:0;bottom:0;padding:12px 20px calc(12px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--paper);font-family:var(--sans);font-size:16px;z-index:5}
  .mobilebar output{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums}
  body{font-size:18px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto}}

.consent{position:fixed;left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));max-width:560px;margin:0 auto;background:var(--field);color:var(--ink);border:1.5px solid var(--ink);border-radius:6px;padding:18px 20px;font-family:var(--sans);font-size:16px;line-height:1.5;z-index:20;box-shadow:0 6px 24px rgba(0,0,0,.12)}
.consent p{margin:0 0 12px}
.consent .row2{display:flex;gap:10px;flex-wrap:wrap}
.consent button{font:inherit;font-weight:700;padding:10px 16px;border-radius:6px;border:1.5px solid var(--sea);cursor:pointer}
.consent .yes{background:var(--sea);color:var(--paper)}
.consent .no{background:transparent;color:var(--sea)}
.consent button:focus-visible{outline:3px solid var(--sea);outline-offset:2px}
.footlinks a{margin-right:4px}
@media (max-width:860px){.consent{bottom:calc(72px + env(safe-area-inset-bottom,0px))}}