/* ============================================================
   Self-hosted fonts — SIL Open Font License 1.1
   No external requests: nothing about a visitor reaches a third party.
   See fonts/LICENSE.txt
   ============================================================ */

@font-face{
  font-family:'Archivo';
  src:url('fonts/archivo.woff2') format('woff2-variations'),
      url('fonts/archivo.woff2') format('woff2');
  font-weight:400 700;
  font-style:normal;
  font-display:swap;
}
@font-face{
  font-family:'Newsreader';
  src:url('fonts/newsreader.woff2') format('woff2-variations'),
      url('fonts/newsreader.woff2') format('woff2');
  font-weight:400 500;
  font-style:normal;
  font-display:swap;
}
@font-face{
  font-family:'Newsreader';
  src:url('fonts/newsreader-italic.woff2') format('woff2-variations'),
      url('fonts/newsreader-italic.woff2') format('woff2');
  font-weight:400 500;
  font-style:italic;
  font-display:swap;
}

/* ============================================================
   What Do I Burn — shared styles
   ============================================================ */

:root{
  --paper:#EDEFEA;
  --panel:#FFFFFF;
  --ink:#16242B;
  --ink-soft:#53646B;
  --rule:#D6DAD3;
  --rule-strong:#B9C0B7;
  --deep:#1E5F55;
  --deep-tint:#E3EEEA;
  --gold:#B57C0A;
  --warn:#9C3B2A;
  --warn-tint:#F7E9E5;

  --seg-rest:#1E5F55;
  --seg-digest:#7BA79A;
  --seg-move:#D9A427;
  --seg-exercise:#A4552A;

  --sans:'Archivo','Helvetica Neue',Arial,sans-serif;
  --serif:'Newsreader',Georgia,'Times New Roman',serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
}

.wrap{max-width:1120px;margin:0 auto;padding:0 20px 80px}
.narrow{max-width:820px}
.hidden{display:none !important}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

:focus-visible{outline:2px solid var(--deep);outline-offset:2px}

/* ---------- navigation ---------- */
.nav{
  border-bottom:1px solid var(--rule-strong);
  background:var(--paper);
}
.nav-inner{
  max-width:1120px;margin:0 auto;padding:14px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.brand{
  font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--ink);
  text-decoration:none;display:flex;align-items:center;gap:9px;
  min-height:44px;
}
.brand .mark{
  width:15px;height:15px;border-radius:50%;flex:none;
  background:conic-gradient(var(--seg-rest) 0 54%,var(--seg-digest) 0 64%,var(--seg-move) 0 70%,var(--seg-exercise) 0 100%);
}
.nav-links{display:flex;gap:4px}
.nav-links a{
  font-size:14.5px;color:var(--ink-soft);text-decoration:none;
  padding:7px 11px;border-radius:6px;
}
.nav-links a:hover{background:var(--panel);color:var(--ink)}
.nav-links a[aria-current=page]{color:var(--ink);font-weight:600;background:var(--panel)}

/* ---------- masthead ---------- */
.masthead{padding:56px 0 32px;max-width:640px}
.masthead h1{
  font-size:clamp(30px,4.4vw,46px);line-height:1.06;
  letter-spacing:-.022em;font-weight:600;margin:0 0 16px;
}
.standfirst{
  font-family:var(--serif);font-size:clamp(17px,2vw,19px);line-height:1.6;
  color:var(--ink-soft);margin:0;max-width:56ch;
}

/* ---------- equation hero ---------- */
.equation{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;
  padding:22px 0 26px;
  border-top:1px solid var(--rule-strong);
  border-bottom:1px solid var(--rule-strong);
  margin-bottom:44px;
}
.term{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:500}
.swatch{width:11px;height:22px;border-radius:2px;flex:none}
.op{color:var(--ink-soft);font-size:17px;font-weight:400}
.term-total{font-weight:600}

/* ---------- layout ---------- */
.columns{display:grid;grid-template-columns:minmax(0,1fr) 372px;gap:56px;align-items:start}

/* ---------- form ---------- */
.step{padding:0 0 42px;margin:0 0 42px;border-bottom:1px solid var(--rule);min-width:0}
.step:last-of-type{border-bottom:0;margin-bottom:8px}
.step-head{display:flex;gap:16px;align-items:baseline;margin-bottom:6px}
.step-num{
  font-size:14px;font-weight:600;color:var(--deep);
  font-variant-numeric:tabular-nums;padding-top:2px;flex:none;width:16px;
}
.step-title{font-size:23px;font-weight:600;letter-spacing:-.012em;margin:0}
.step-note{
  font-family:var(--serif);font-size:17px;line-height:1.55;color:var(--ink-soft);
  margin:0 0 22px 32px;max-width:54ch;
}
.step-body{margin-left:32px}

fieldset{border:0;padding:0;margin:0 0 22px;min-width:0}
fieldset:last-child{margin-bottom:0}
legend{padding:0;font-size:15px;font-weight:600;margin-bottom:10px}
.legend-hint{font-weight:400;color:var(--ink-soft);font-family:var(--serif);font-size:16px}

.field-row{display:flex;flex-wrap:wrap;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field label{font-size:14px;font-weight:500}
.field .sub{font-size:13px;color:var(--ink-soft);font-weight:400}

input[type=number]{
  font-family:var(--sans);font-size:17px;font-weight:500;
  font-variant-numeric:tabular-nums;color:var(--ink);background:var(--panel);
  border:1px solid var(--rule-strong);border-radius:6px;
  padding:11px 12px;width:112px;-moz-appearance:textfield;
}
input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
input[type=radio]:focus-visible + .opt-body{outline:2px solid var(--deep);outline-offset:3px}

.suffix{display:flex;align-items:center;gap:8px}
.suffix .unit{font-size:14px;color:var(--ink-soft)}

.segmented{
  display:inline-flex;background:var(--panel);border:1px solid var(--rule-strong);
  border-radius:7px;padding:3px;gap:3px;
}
.segmented button{
  font-family:var(--sans);font-size:14px;font-weight:500;color:var(--ink-soft);
  background:none;border:0;border-radius:5px;padding:8px 15px;cursor:pointer;
}
.segmented button[aria-pressed=true]{background:var(--deep);color:#fff}

.options{display:flex;flex-direction:column;gap:8px}
.opt{position:relative;display:block}
.opt input{position:absolute;opacity:0;width:0;height:0}
.opt-body{
  display:block;background:var(--panel);
  border:1px solid var(--rule-strong);border-left:3px solid var(--rule-strong);
  border-radius:6px;padding:13px 15px;cursor:pointer;
}
.opt-body strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.opt-body span{display:block;font-family:var(--serif);font-size:15.5px;line-height:1.45;color:var(--ink-soft)}
.opt input:checked + .opt-body{background:var(--deep-tint);border-color:var(--deep);border-left-color:var(--deep)}
.opt-body:hover{background:#FAFBF9}
.opt input:checked + .opt-body:hover{background:var(--deep-tint)}

.inline-opts{display:flex;flex-wrap:wrap;gap:8px}
.inline-opts .opt{flex:1 1 150px}

details.explain{margin-top:14px;border-top:1px dotted var(--rule-strong);padding-top:12px}
details.explain summary{
  cursor:pointer;font-size:14px;font-weight:500;color:var(--deep);
  list-style:none;display:flex;align-items:center;gap:7px;
  min-height:26px;
}
details.explain summary::-webkit-details-marker{display:none}
details.explain summary::before{content:"+";font-size:15px;width:12px;display:inline-block}
details.explain[open] summary::before{content:"\2013"}
details.explain .body{
  font-family:var(--serif);font-size:16px;line-height:1.6;color:var(--ink-soft);
  margin-top:10px;max-width:58ch;
}
details.explain .body p{margin:0 0 10px}
details.explain .body p:last-child{margin-bottom:0}

.rate-wrap{margin-top:6px}
input[type=range]{
  -webkit-appearance:none;appearance:none;width:100%;max-width:330px;
  background:transparent;margin:4px 0;
  height:44px;                 /* touch target — the visible track stays 4px */
  cursor:pointer;
}
input[type=range]::-webkit-slider-runnable-track{height:4px;background:var(--rule-strong);border-radius:2px}
input[type=range]::-moz-range-track{height:4px;background:var(--rule-strong);border-radius:2px}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:22px;height:22px;border-radius:50%;
  background:var(--deep);border:3px solid var(--panel);margin-top:-9px;cursor:pointer;
  box-shadow:0 0 0 1px var(--deep);
}
input[type=range]::-moz-range-thumb{
  width:18px;height:18px;border-radius:50%;background:var(--deep);
  border:3px solid var(--panel);cursor:pointer;box-shadow:0 0 0 1px var(--deep);
}
.rate-read{font-family:var(--serif);font-size:16.5px;color:var(--ink-soft);max-width:52ch}
.rate-read b{font-family:var(--sans);font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}

/* ---------- results ---------- */
.results{position:sticky;top:24px}
.result-card{background:var(--panel);border:1px solid var(--rule-strong);border-radius:10px;overflow:hidden}

.headline{padding:24px 24px 22px;border-bottom:1px solid var(--rule)}
.headline .kicker{font-size:14px;color:var(--ink-soft);margin:0 0 6px}
.bignum{font-size:60px;line-height:1;font-weight:700;letter-spacing:-.03em;font-variant-numeric:tabular-nums;margin:0}
.bigunit{font-size:20px;font-weight:500;letter-spacing:0;color:var(--ink-soft);margin-left:8px}
.headline .under{font-family:var(--serif);font-size:16px;line-height:1.5;color:var(--ink-soft);margin:12px 0 0}

.donut-wrap{padding:22px 24px 4px;display:flex;justify-content:center}
.donut{width:100%;max-width:236px;height:auto;display:block}
.donut circle{transition:stroke-dasharray .45s cubic-bezier(.4,0,.2,1),stroke-dashoffset .45s cubic-bezier(.4,0,.2,1)}
.donut .cx-num{font-family:var(--sans);font-size:34px;font-weight:700;fill:var(--ink);letter-spacing:-.02em}
.donut .cx-lbl{font-family:var(--sans);font-size:11.5px;font-weight:500;fill:var(--ink-soft)}

.ledger{padding:20px 24px 6px}
.ledger h3,.macros h3,.goalchart h3,.share-row h3{font-size:15px;font-weight:600;margin:0 0 3px}
.ledger .lede,.macros .lede,.goalchart .lede,.share-row .lede{
  font-family:var(--serif);font-size:15.5px;line-height:1.5;color:var(--ink-soft);margin:0 0 14px;
}
.line{display:flex;align-items:baseline;gap:11px;padding:9px 0;border-bottom:1px dotted var(--rule)}
.line .swatch{height:13px;border-radius:2px;position:relative;top:2px}
.line .name{flex:1;font-size:15px;min-width:0}
.line .name em{display:block;font-family:var(--serif);font-style:normal;font-size:14.5px;line-height:1.4;color:var(--ink-soft)}
.line .val{font-size:16px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.line.total{border-bottom:0;border-top:1.5px solid var(--ink);margin-top:4px;padding-top:12px}
.line.total .name{font-weight:600}
.line.total .val{font-size:19px}

.adjust{padding:16px 24px 20px;margin:0;background:var(--deep-tint);border-top:1px solid var(--rule)}
.adjust .row{display:flex;justify-content:space-between;gap:12px;font-size:15px;padding:3px 0}
.adjust .row .val{font-weight:600;font-variant-numeric:tabular-nums}
.adjust .note{font-family:var(--serif);font-size:15.5px;line-height:1.5;color:var(--ink-soft);margin:10px 0 0}

.flag{
  margin:0;padding:14px 24px;background:var(--warn-tint);border-top:1px solid var(--rule);
  font-family:var(--serif);font-size:15.5px;line-height:1.55;color:#6E2A1D;
}
.flag strong{font-family:var(--sans);font-size:14px;display:block;margin-bottom:3px;color:var(--warn)}

.goalchart{padding:20px 24px 22px;border-top:1px solid var(--rule)}
.goalchart svg{width:100%;height:auto;display:block;overflow:visible}
.gc-grid{stroke:var(--rule);stroke-width:1}
.gc-line{fill:none;stroke:var(--deep);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.gc-line.up{stroke:var(--gold)}
.gc-fill{fill:var(--deep);opacity:.10}
.gc-fill.up{fill:var(--gold);opacity:.12}
.gc-dot{fill:var(--deep);stroke:var(--panel);stroke-width:2.5}
.gc-dot.up{fill:var(--gold)}
.gc-lbl{font-family:var(--sans);font-size:11.5px;fill:var(--ink-soft)}
.gc-val{font-family:var(--sans);font-size:13.5px;font-weight:600;fill:var(--ink)}
.gc-caption{font-family:var(--serif);font-size:15px;line-height:1.5;color:var(--ink-soft);margin:14px 0 0}

.macros{padding:20px 24px 24px;border-top:1px solid var(--rule)}
.macro{display:flex;align-items:baseline;gap:11px;padding:8px 0;border-bottom:1px dotted var(--rule)}
.macro:last-of-type{border-bottom:0}
.macro .name{flex:1;font-size:15px}
.macro .name em{display:block;font-family:var(--serif);font-style:normal;font-size:14.5px;line-height:1.4;color:var(--ink-soft)}
.macro .val{font-size:16px;font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}

.working{padding:0 24px 22px}
.working details{border-top:1px solid var(--rule);padding-top:14px}
.working summary{cursor:pointer;font-size:14px;font-weight:500;color:var(--deep);list-style:none;display:flex;align-items:center;gap:7px;min-height:26px}
.working summary::-webkit-details-marker{display:none}
.working summary::before{content:"+";width:12px;display:inline-block}
.working details[open] summary::before{content:"\2013"}
.working .maths{margin-top:12px;font-size:14px;line-height:1.85;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.working .maths b{color:var(--ink);font-weight:600}

/* ---------- share + pdf ---------- */
.share-row{padding:20px 24px 22px;border-top:1px solid var(--rule)}
.btn-pair{display:flex;gap:9px;flex-wrap:wrap}
.btn{
  font-family:var(--sans);font-size:14.5px;font-weight:600;cursor:pointer;
  border-radius:7px;padding:12px 15px;flex:1 1 140px;text-align:center;
  border:1.5px solid var(--ink);background:var(--panel);color:var(--ink);
}
.btn:hover{background:var(--ink);color:var(--panel)}
.btn-primary{background:var(--deep);border-color:var(--deep);color:#fff}
.btn-primary:hover{background:#174E46;border-color:#174E46;color:#fff}
.share-msg{font-size:13.5px;color:var(--deep);font-weight:500;margin:10px 0 0;min-height:1.2em}
.share-note{font-size:13px;color:var(--ink-soft);line-height:1.5;margin:8px 0 0}

.point-note{
  margin:0;padding:14px 24px;border-top:1px solid var(--rule);background:var(--paper);
  font-family:var(--serif);font-size:14.5px;line-height:1.5;color:var(--ink-soft);
}
.point-note a{color:var(--deep)}


/* ---------- formula vs measured comparison ---------- */
.compare{padding:20px 24px 22px;border-top:1px solid var(--rule)}
.compare h3{font-size:15px;font-weight:600;margin:0 0 3px}
.compare .lede{font-family:var(--serif);font-size:15.5px;line-height:1.5;color:var(--ink-soft);margin:0 0 16px}
.cmp-row{display:flex;align-items:center;gap:11px;padding:5px 0}
.cmp-lbl{font-size:14px;width:72px;flex:none;color:var(--ink-soft)}
.cmp-track{flex:1;height:15px;background:var(--paper);border-radius:3px;overflow:hidden;min-width:0}
.cmp-fill{display:block;height:100%;border-radius:3px;transition:width .4s cubic-bezier(.4,0,.2,1)}
.cmp-fill.est{background:var(--rule-strong)}
.cmp-fill.mea{background:var(--deep)}
.cmp-val{font-size:14.5px;font-weight:600;font-variant-numeric:tabular-nums;width:52px;text-align:right;flex:none}

/* ---------- utilities ---------- */
.mt-0{margin-top:0}
.mt-sm{margin-top:9px}
.mt-lg{margin-top:22px}
.mb-lg{margin-bottom:22px}
.mb-xl{margin-bottom:26px}
.w-sm{width:74px}
.swatch.sm{width:9px}
.c-rest{background:var(--seg-rest)}
.c-digest{background:var(--seg-digest)}
.c-move{background:var(--seg-move)}
.c-exercise{background:var(--seg-exercise)}

/* ---------- error band ---------- */
.band{
  font-size:14.5px;color:var(--ink-soft);margin:9px 0 0;
  font-variant-numeric:tabular-nums;
}
.band b{color:var(--ink);font-weight:600}

/* ---------- portions ---------- */
.portions{margin-top:18px}
.portions .p-head{
  font-family:var(--sans);font-size:14px;font-weight:600;color:var(--ink);
  margin:16px 0 6px;
}
.portions .p-head b{color:var(--deep);font-weight:600}
.portions .p-head:first-of-type{margin-top:4px}
.p-list{list-style:none;margin:0;padding:0}
.p-list li{
  display:flex;justify-content:space-between;gap:12px;
  font-family:var(--serif);font-size:15.5px;line-height:1.4;
  padding:5px 0;border-bottom:1px dotted var(--rule);
}
.p-list li span{
  font-family:var(--sans);font-size:14px;font-weight:600;color:var(--ink);
  font-variant-numeric:tabular-nums;flex:none;
}
.portions .p-foot{font-size:15px;margin-top:14px}

/* ---------- levers ---------- */
.levers{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:12px;max-width:1000px}
.lever{
  background:var(--panel);border:1px solid var(--rule-strong);border-radius:9px;
  padding:18px 19px;display:flex;flex-direction:column;gap:4px;
}
.lever .amt{
  font-size:29px;font-weight:700;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1;
}
.lever .amt.plus{color:var(--deep)}
.lever .amt.minus{color:var(--warn)}
.lever .amt small{font-size:14px;font-weight:500;color:var(--ink-soft);margin-left:5px;letter-spacing:0}
.lever h3{font-size:15px;font-weight:600;margin:6px 0 0}
.lever p{font-family:var(--serif);font-size:15px;line-height:1.45;color:var(--ink-soft);margin:0}
.levers-foot{
  font-family:var(--serif);font-size:15px;line-height:1.5;color:var(--ink-soft);
  margin:18px 0 0;max-width:62ch;
}

/* ---------- prose / closing ---------- */
.closing{margin-top:64px;border-top:1px solid var(--rule-strong);padding-top:40px}
.closing h2{font-size:26px;font-weight:600;letter-spacing:-.015em;margin:0 0 14px}
.prose{font-family:var(--serif);font-size:17.5px;line-height:1.65;color:var(--ink-soft);max-width:62ch}
.prose p{margin:0 0 14px}
.prose strong{color:var(--ink);font-weight:500}

.checkin{
  margin:28px 0 0;background:var(--panel);border:1px solid var(--rule-strong);
  border-radius:10px;padding:26px 28px;max-width:720px;
}
.checkin h3{font-size:18px;font-weight:600;margin:0 0 10px}
.checkin ol{margin:0;padding-left:22px;font-family:var(--serif);font-size:17px;line-height:1.6;color:var(--ink-soft)}
.checkin li{margin-bottom:9px}
.checkin li:last-child{margin-bottom:0}
.checkin li strong{color:var(--ink);font-weight:500}
.checkin-more{font-family:var(--serif);font-size:17px;line-height:1.6;color:var(--ink-soft);margin:16px 0 0}
.checkin-more a{color:var(--deep)}

.help-box{
  background:var(--panel);border:1px solid var(--rule-strong);border-left:3px solid var(--deep);
  border-radius:8px;padding:22px 24px;margin:34px 0 0;max-width:720px;
}
.help-box h3{font-size:17px;font-weight:600;margin:0 0 8px}
.help-box p{font-family:var(--serif);font-size:16.5px;line-height:1.6;color:var(--ink-soft);margin:0 0 9px}
.help-box p:last-child{margin-bottom:0}
.help-box a{color:var(--deep)}

/* ---------- how it works page ---------- */
.section{margin-top:52px;max-width:760px}
.section h2{font-size:26px;font-weight:600;letter-spacing:-.015em;margin:0 0 12px}
.section h3{font-size:18px;font-weight:600;margin:30px 0 8px}
.section p{font-family:var(--serif);font-size:17px;line-height:1.65;color:var(--ink-soft);margin:0 0 14px;max-width:62ch}
.section p strong{color:var(--ink);font-weight:500}
.section ul{font-family:var(--serif);font-size:17px;line-height:1.6;color:var(--ink-soft);margin:0 0 14px;padding-left:22px;max-width:60ch}
.section li{margin-bottom:8px}

.formula{
  background:var(--panel);border:1px solid var(--rule-strong);border-radius:8px;
  padding:18px 20px;margin:0 0 18px;max-width:640px;
  font-size:15px;line-height:1.8;font-variant-numeric:tabular-nums;
}
.formula .label{font-size:13.5px;font-weight:600;color:var(--deep);margin-bottom:7px}
.formula code{font-family:var(--sans);font-weight:500;color:var(--ink);background:none}

.piece{display:grid;grid-template-columns:14px minmax(0,1fr);gap:14px;padding:18px 0;border-bottom:1px solid var(--rule)}
.piece:first-of-type{border-top:1px solid var(--rule-strong)}
.piece .chip{width:12px;height:100%;min-height:40px;border-radius:3px}
.piece h3{margin:0 0 5px;font-size:17px}
.piece h3 a{color:var(--deep);display:inline-block;padding:9px 0;min-height:44px}
.piece p{margin:0 0 8px;font-size:16.5px}
.piece p:last-child{margin-bottom:0}

.glossary{margin-top:52px;max-width:760px}
.faq{margin-top:56px}
.glossary h2{font-size:26px;font-weight:600;letter-spacing:-.015em;margin:0 0 6px}
.gitem{border-bottom:1px solid var(--rule)}
.gitem:first-of-type{border-top:1px solid var(--rule)}
.gitem summary{
  cursor:pointer;list-style:none;padding:15px 0;font-size:16px;font-weight:500;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.gitem summary::-webkit-details-marker{display:none}
.gitem summary::after{content:"+";color:var(--deep);font-size:17px;flex:none}
.gitem[open] summary::after{content:"\2013"}
.gitem .body{font-family:var(--serif);font-size:16.5px;line-height:1.6;color:var(--ink-soft);padding:0 0 18px;max-width:60ch}
.gitem .body p{margin:0 0 10px}
.gitem .body p:last-child{margin-bottom:0}

/* ---------- sources ---------- */
.sources{margin-top:52px;max-width:760px}
.sources h2{font-size:26px;font-weight:600;letter-spacing:-.015em;margin:0 0 6px}
.src{display:grid;grid-template-columns:190px minmax(0,1fr);gap:18px;padding:16px 0;border-bottom:1px solid var(--rule)}
.src:first-of-type{border-top:1px solid var(--rule-strong)}
.src .use{font-size:14.5px;font-weight:600;line-height:1.4}
.src .use span{font-weight:400;color:var(--ink-soft)}
.src .ref{font-family:var(--serif);font-size:15.5px;line-height:1.55;color:var(--ink-soft)}
.src .ref a{color:var(--deep);word-break:break-word}
.src .ref .caveat{display:block;margin-top:6px;color:var(--ink);font-size:15px}

/* ---------- legal ---------- */
.legal{margin-top:44px;max-width:760px}
.legal h2{font-size:20px;font-weight:600;margin:36px 0 8px}
.legal h2:first-of-type{margin-top:0}
.legal p{font-family:var(--serif);font-size:16.5px;line-height:1.62;color:var(--ink-soft);margin:0 0 12px;max-width:64ch}
.legal ul{font-family:var(--serif);font-size:16.5px;line-height:1.58;color:var(--ink-soft);margin:0 0 12px;padding-left:22px;max-width:62ch}
.legal li{margin-bottom:7px}
.legal strong{color:var(--ink);font-weight:500}
.legal .updated{font-size:14px;color:var(--ink-soft);font-family:var(--sans);margin-bottom:0}

/* ---------- footer ---------- */
footer{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--rule);
  font-family:var(--serif);font-size:15.5px;line-height:1.6;color:var(--ink-soft);max-width:62ch;
}
footer a{color:var(--deep)}
.foot-links{font-family:var(--sans);font-size:14.5px;margin-top:14px}
.foot-links a{margin-right:16px}

.print-only{display:none}
.mobile-bar{display:none}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:940px){
  .wrap{padding:0 18px 44px}
  .columns{grid-template-columns:1fr;gap:40px}
  .results{position:static}
  .src{grid-template-columns:1fr;gap:5px}
  .masthead{padding:34px 0 22px}
  .step-note,.step-body{margin-left:0}
  .step-head{margin-bottom:8px}
  .step{padding-bottom:34px;margin-bottom:34px}
  .equation{gap:8px 10px;padding:18px 0 20px;margin-bottom:34px}
  .term{font-size:14px}
  .segmented{display:flex;width:100%}
  .segmented button{flex:1;padding:11px 8px}
  .field-row{gap:12px}
  .field{flex:1 1 132px}
  input[type=number]{width:100%;padding:13px 12px}
  #height-imperial-wrap input{width:100%;min-width:0}
  #height-imperial-wrap .suffix{gap:6px}
  .inline-opts .opt{flex:1 1 100%}
  details.explain summary,.working summary{padding:6px 0}
  .gitem summary{padding:17px 0}
  input[type=range]{max-width:none;margin:18px 0 8px}
  .bignum{font-size:52px}
  .donut-wrap{padding:20px 20px 2px}
  .headline,.ledger,.macros,.goalchart,.adjust,.share-row,.compare,.point-note{padding-left:20px;padding-right:20px}
  .closing,.section,.sources,.glossary,.legal{margin-top:40px}
  .checkin{padding:22px 20px}
  .levers{grid-template-columns:1fr}
  .nav-inner{padding:8px 18px;gap:4px;flex-direction:column;align-items:stretch}
  .nav-links{
    width:100%;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
    padding-bottom:2px;
  }
  .nav-links::-webkit-scrollbar{display:none}
  .nav-links{gap:2px}
  .nav-links a{
    padding:12px 9px;font-size:14px;flex:none;white-space:nowrap;
    display:flex;align-items:center;min-height:44px;
  }
  .brand{min-height:44px}
  .segmented button{min-height:44px}
  details.explain summary,.working summary{padding:11px 0;min-height:44px;align-items:center}
  .btn{padding:14px 15px;min-height:48px}
  .mobile-bar a{padding:12px 14px;min-height:44px;display:flex;align-items:center}
  .foot-links a{display:inline-block;padding:8px 0;margin-right:20px}
  .point-note a,.gc-caption a{display:inline-block;padding:4px 0}
  .mobile-bar{
    display:flex;position:sticky;bottom:0;z-index:20;
    align-items:center;justify-content:space-between;gap:14px;
    background:var(--ink);color:#fff;padding:11px 18px;
    padding-bottom:calc(11px + env(safe-area-inset-bottom,0px));
    width:100%;
  }
  .mobile-bar .lbl{font-size:13px;opacity:.78}
  .mobile-bar .num{font-size:23px;font-weight:700;font-variant-numeric:tabular-nums}
  .mobile-bar a{
    color:#fff;font-size:14px;font-weight:500;text-decoration:none;
    border:1px solid rgba(255,255,255,.45);border-radius:6px;padding:9px 13px;
  }
}

@media (max-width:400px){
  .masthead h1{font-size:27px}
  .standfirst{font-size:16.5px}
  .step-title{font-size:20px}
  .step-note{font-size:16px}
  .section h2,.sources h2,.glossary h2,.closing h2{font-size:22px}
  .bignum{font-size:46px}
  .bigunit{font-size:17px}
  .opt-body span{font-size:15px}
  .term{font-size:13.5px}
  .swatch{height:18px;width:9px}
  .brand span:not(.mark){font-size:14px}
}

@media (prefers-reduced-motion:no-preference){
  .opt-body,.segmented button,.btn,.nav-links a{transition:background-color .12s ease,border-color .12s ease,color .12s ease}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .donut circle{transition:none}
}

/* ============================================================
   Print / Save as PDF
   ============================================================ */
@media print{
  @page{margin:14mm 15mm}
  html,body{background:#fff;color:#000;font-size:10.5pt}
  .nav,.mobile-bar,.share-row,.masthead,.equation,main,.working,.help-box,.foot-links,
  .levers-section,.portions,.faq,.checkin-more{display:none !important}

  .wrap{max-width:none;padding:0}
  .columns{display:block}
  .results{position:static}

  .print-only{display:block}
  .print-head{border-bottom:2px solid #000;padding-bottom:10px;margin-bottom:16px}
  .print-head h1{font-size:19pt;font-weight:600;margin:0 0 5px;letter-spacing:-.01em}
  .print-head .meta{font-size:9pt;color:#444;margin:0}
  .print-inputs{
    font-family:var(--serif);font-size:10pt;line-height:1.5;color:#333;
    border-bottom:1px solid #bbb;padding-bottom:12px;margin-bottom:16px;
  }
  .print-inputs b{font-family:var(--sans);font-weight:600;color:#000}

  .result-card{border:0;border-radius:0}
  .headline{border-bottom:1px solid #bbb;padding:0 0 12px}
  .bignum{font-size:32pt}
  .headline .under{font-size:10pt}
  .donut-wrap{padding:14px 0 0;justify-content:flex-start;break-inside:avoid}
  .donut{max-width:190px}
  .ledger,.macros,.compare{padding:14px 0;break-inside:avoid}
  .goalchart{padding:14px 0;break-inside:auto}
  .goalchart svg{break-inside:avoid;max-width:420px}
  .adjust{padding:12px 14px;background:#f2f2f2;border-radius:5px;margin:12px 0}
  .flag{padding:12px 14px;background:#f2f2f2;border-radius:5px}
  .point-note{padding:12px 0 0;background:none;font-size:9pt}
  .goalchart{border-top:1px solid #ddd}

  .closing{margin-top:18px;border-top:1px solid #bbb;padding-top:14px}
  .closing h2{break-after:avoid}
  .closing h2{font-size:14pt}
  .closing .prose{font-size:10pt;max-width:none}
  .checkin{border:1px solid #bbb;border-radius:5px;padding:14px 16px;margin-top:14px;break-inside:avoid}
  .checkin ol{font-size:10pt}

  footer{margin-top:18px;font-size:9pt;border-top:1px solid #bbb}
  a{color:#000;text-decoration:none}
  .print-sources{
    display:block;margin-top:14px;padding-top:12px;border-top:1px solid #bbb;
    font-family:var(--serif);font-size:8.5pt;line-height:1.45;color:#444;
  }
  .print-sources b{font-family:var(--sans);font-size:9pt;color:#000;display:block;margin-bottom:4px}
}