/* mc.css — MeasureChef site styles. Instrument-precision theme.
 * Palette "instrument deck": graphite + warm paper + one measured teal + brass tick.
 * Fonts self-hosted (Inter, JetBrains Mono) via @font-face below; system fallbacks given.
 */

/* ---------- self-hosted fonts (static per-weight woff2 in /assets/fonts/) ---------- */
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;
  src:url('/assets/fonts/inter-latin-400-normal.woff2') format('woff2');}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;
  src:url('/assets/fonts/inter-latin-500-normal.woff2') format('woff2');}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;
  src:url('/assets/fonts/inter-latin-600-normal.woff2') format('woff2');}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;
  src:url('/assets/fonts/inter-latin-700-normal.woff2') format('woff2');}
@font-face{font-family:'Inter';font-style:normal;font-weight:800;font-display:swap;
  src:url('/assets/fonts/inter-latin-800-normal.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;
  src:url('/assets/fonts/jetbrains-mono-latin-400-normal.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;
  src:url('/assets/fonts/jetbrains-mono-latin-500-normal.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:600;font-display:swap;
  src:url('/assets/fonts/jetbrains-mono-latin-600-normal.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:700;font-display:swap;
  src:url('/assets/fonts/jetbrains-mono-latin-700-normal.woff2') format('woff2');}

:root{
  --ink:#1f2426; --ink-soft:#4a5358; --ink-2:#33393c;
  --paper:#f7f5f0; --panel:#ffffff;
  --slate:#1c2426; --slate-2:#283335;
  --teal:#0f8a82; --teal-bright:#15b3a6;
  --teal-text:#0c7a73;        /* AA-normal on white/paper (4.5:1+) */
  --brass:#b8895a;            /* OK on dark slate; decorative on light */
  --brass-text:#8c6438;       /* AA-normal on paper AND white */
  --line:#e2ddd2; --line-strong:#cfc8b9;
  --radius:14px;
  --tap:48px;                 /* minimum touch target (floury fingers) */
  --shadow:0 1px 0 rgba(0,0,0,.02), 0 12px 32px -18px rgba(28,36,38,.35);
  --mono:'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --sans:'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:18px;line-height:1.6;-webkit-font-smoothing:antialiased;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:28px 28px;background-position:-1px -1px;
}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;
  background:radial-gradient(120% 80% at 50% 0%, rgba(247,245,240,.2), var(--paper) 60%);}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* ---------- top bar ---------- */
.bar{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;max-width:1080px;margin:0 auto}
.logo{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.01em;font-size:19px;text-decoration:none;color:var(--ink)}
.logo .mark{width:30px;height:30px;border-radius:8px;background:var(--slate);position:relative;flex:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06)}
.logo .mark::before{content:"";position:absolute;left:7px;right:7px;top:9px;height:1px;background:var(--teal-bright);box-shadow:0 5px 0 var(--brass),0 10px 0 rgba(255,255,255,.25)}
.logo span{color:var(--teal-text)}
.nav{display:flex;gap:26px;font-size:15.5px;color:var(--ink-2);font-weight:500}
.nav a{color:inherit;text-decoration:none;transition:color .15s}
.nav a:hover{color:var(--teal-text)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;background:none;border:0;cursor:pointer;padding:9px}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--ink-2);border-radius:2px;transition:transform .2s,opacity .2s}
.nav-toggle.on span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.on span:nth-child(2){opacity:0}
.nav-toggle.on span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:680px){
  .nav-toggle{display:flex}
  .nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;background:var(--paper,#f7f5f0);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 0;z-index:50;box-shadow:0 6px 18px rgba(0,0,0,.06)}
  .nav.open{display:flex}
  .nav a{padding:13px 24px;font-size:16px;border-bottom:1px solid var(--line)}
  .nav a:last-child{border-bottom:0}
  .bar{position:relative}
}

/* ---------- breadcrumb ---------- */
.crumb{font-family:var(--mono);font-size:12px;color:var(--ink-soft);padding:8px 0 0;letter-spacing:.02em}
.crumb a{color:var(--ink-soft);text-decoration:none}
.crumb a:hover{color:var(--teal-text)}
.crumb span{color:var(--brass-text)}

/* ---------- page head ---------- */
.page-head{padding:18px 0 18px;max-width:62ch}
.page-head h1{margin:6px 0 8px}
.lede{font-size:19px;color:var(--ink-2);max-width:56ch;line-height:1.58}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brass-text);display:flex;align-items:center;gap:10px;margin-bottom:16px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--brass)}
h1{font-size:clamp(30px,4.4vw,42px);line-height:1.08;letter-spacing:-.025em;font-weight:700;margin-bottom:16px}

/* ---------- calculator layout ---------- */
.calc{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;margin:8px 0 40px}
@media(max-width:820px){.calc{grid-template-columns:1fr}}

/* input panel */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.panel h2{font-size:14px;font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:20px;font-weight:500}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:550;margin-bottom:7px}
.field .hint{font-size:12.5px;color:var(--ink-soft);margin-top:5px}
.input,.select{width:100%;font-family:var(--mono);font-size:16px;color:var(--ink);background:var(--paper);
  border:1px solid var(--line-strong);border-radius:9px;padding:12px 14px;min-height:var(--tap);transition:border-color .15s,box-shadow .15s}
.input:focus,.select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(21,179,166,.4)}
.select{cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235b6469' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:34px}

/* mode toggle */
.toggle{display:flex;gap:0;background:var(--paper);border:1px solid var(--line-strong);border-radius:9px;padding:3px;margin-bottom:22px}
.toggle button{flex:1;font-family:var(--sans);font-size:13.5px;font-weight:550;cursor:pointer;border:none;background:transparent;
  color:var(--ink-soft);padding:9px 10px;min-height:var(--tap);border-radius:7px;transition:background .15s,color .15s}
.toggle button[aria-pressed="true"]{background:var(--slate);color:#fff}

.ratio-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.chip{font-family:var(--mono);font-size:14px;cursor:pointer;border:1px solid var(--line-strong);background:var(--paper);
  color:var(--ink);border-radius:9px;padding:0 16px;min-height:var(--tap);display:inline-flex;align-items:center;transition:all .14s}
.chip[aria-pressed="true"]{background:rgba(15,138,130,.1);border-color:var(--teal);color:var(--teal-text)}
.chip:hover{border-color:var(--teal)}
.chip:focus-visible{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(21,179,166,.4)}

/* ---------- readout panel (the instrument) ---------- */
.device{background:linear-gradient(180deg,var(--slate),var(--slate-2));border-radius:18px;padding:7px;
  box-shadow:0 30px 60px -30px rgba(28,36,38,.55),inset 0 1px 0 rgba(255,255,255,.07);position:sticky;top:20px}
.device-inner{background:#0e1416;border-radius:13px;padding:22px;position:relative;overflow:hidden}
.device-inner::after{content:"";position:absolute;top:0;left:0;right:0;height:38%;background:linear-gradient(180deg,rgba(255,255,255,.05),transparent);pointer-events:none}
.dev-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.dev-label{font-family:var(--mono);font-size:12.5px;letter-spacing:.16em;color:#ffffff;text-transform:uppercase;font-weight:700}
.dev-dot{width:7px;height:7px;border-radius:50%;background:var(--teal-bright);box-shadow:0 0 10px var(--teal-bright)}

.result-rows{display:grid;gap:1px;background:rgba(255,255,255,.06);border-radius:10px;overflow:hidden;margin-bottom:16px}
.rrow{display:flex;justify-content:space-between;align-items:baseline;background:#0e1416;padding:13px 15px}
.rrow .k{font-family:var(--mono);font-size:13.5px;letter-spacing:.04em;color:#ffffff;text-transform:uppercase;font-weight:700}
.rrow .v{font-family:var(--mono);font-weight:700;color:var(--teal-bright);font-size:24px;text-shadow:0 0 16px rgba(21,179,166,.35)}
.rrow .v small{font-size:13px;color:#d8efec;font-weight:600;margin-left:3px}
.rrow.minor .v{color:#ffffff;text-shadow:none;font-size:20px;font-weight:700}

.dev-meta{border-top:1px solid rgba(255,255,255,.07);padding-top:14px;display:grid;gap:10px}
.meta-line{display:flex;gap:9px;font-size:14px;color:#ffffff;line-height:1.5;font-weight:600}
.meta-line .tag{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#e0b27e;flex:none;padding-top:1px;font-weight:700}
.meta-line.peak .val{color:#ffffff;font-family:var(--mono);font-weight:700}
.honesty-note{font-size:13px;color:#e8f0ee;line-height:1.55;font-style:italic;border-left:2px solid var(--brass);padding-left:11px;margin-top:6px;font-weight:500}

.err{background:#2a1518;border:1px solid #5b2a2f;color:#f0b6b6;font-size:13px;border-radius:9px;padding:12px 14px;font-family:var(--mono)}

/* ---------- prose sections ---------- */
.prose{max-width:64ch;padding:18px 0 10px}
.prose h2{font-size:24px;letter-spacing:-.02em;margin:34px 0 12px;font-weight:660}
.prose h3{font-size:18px;margin:24px 0 8px;font-weight:600}
.prose p{color:var(--ink);margin-bottom:14px}
.prose .formula{font-family:var(--mono);font-size:14px;background:var(--panel);border:1px solid var(--line);
  border-left:3px solid var(--teal);border-radius:8px;padding:14px 16px;margin:14px 0;color:var(--ink);overflow-x:auto}

/* reference table */
.ref-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.ref-table th,.ref-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.ref-table th{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);font-weight:500}
.ref-table td:first-child{font-family:var(--mono);color:var(--teal-text);font-weight:600}

/* FAQ */
.faq{max-width:64ch;margin:14px 0}
.faq details{border:1px solid var(--line);border-radius:10px;padding:0;margin-bottom:10px;background:var(--panel);overflow:hidden}
.faq summary{cursor:pointer;padding:15px 18px;font-weight:550;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--brass);font-size:18px}
.faq details[open] summary::after{content:"\2212"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .ans{padding:14px 18px;color:var(--ink-soft);font-size:14.5px;line-height:1.55}

/* sibling mesh */
.siblings{margin:34px 0}.siblings h2{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--brass-text);margin-bottom:14px;font-weight:500}
.sib-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:680px){.sib-grid{grid-template-columns:1fr}}
.sib{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px;text-decoration:none;color:inherit;transition:transform .14s,border-color .14s,box-shadow .14s}
.sib:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.sib b{display:block;font-size:15px;letter-spacing:-.01em;margin-bottom:4px}
.sib span{font-size:13px;color:var(--ink-soft)}

/* ---------- related guides (on calculator pages) ---------- */
.related-guides{margin:34px 0}
.related-guides h2{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--brass-text);margin-bottom:14px;font-weight:500}
.rg-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 28px}
@media(max-width:680px){.rg-grid{grid-template-columns:1fr}}
.rg-link{display:flex;align-items:baseline;gap:8px;font-size:16px;color:var(--ink-2);text-decoration:none;padding:7px 0;border-bottom:1px solid var(--line);transition:color .14s}
.rg-link:hover{color:var(--teal-text)}
.rg-ico{color:var(--teal);font-size:11px;flex:none}

/* footer */
.foot{padding:46px 0 40px;border-top:1px solid var(--line);margin-top:36px}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}
.foot-cols{display:flex;gap:46px;flex-wrap:wrap}
.foot-col h4{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--brass-text);margin-bottom:13px;font-weight:600}
.foot-col h4 a{color:inherit;text-decoration:none}
.foot-col h4 a:hover{color:var(--teal-text)}
.foot-col a{display:block;margin-bottom:9px;font-size:16px;color:var(--ink-2);text-decoration:none}
.foot-col a:hover{color:var(--teal-text)}
.byline{font-family:var(--mono);font-size:13px;color:var(--ink-soft);margin-top:26px;letter-spacing:.02em}

/* ---------- baker's % ingredient rows ---------- */
.ing-row{display:grid;grid-template-columns:1fr 90px auto auto 32px;gap:8px;align-items:center;margin-bottom:8px}
.ing-row .flag{font-size:12px;color:var(--ink-soft);display:flex;align-items:center;gap:4px;white-space:nowrap}
.ing-row .rm{border:none;background:transparent;color:var(--ink-soft);font-size:20px;cursor:pointer;line-height:1;padding:0;min-height:var(--tap)}
.ing-row .rm:hover{color:#b5454a}
.ing-row .input{min-height:44px;padding:9px 11px;font-size:15px}
@media(max-width:560px){.ing-row{grid-template-columns:1fr 70px;grid-auto-flow:row}.ing-row .flag,.ing-row .rm{grid-column:span 1}}
.add-btn{font-family:var(--mono);font-size:13px;color:var(--teal-text);background:transparent;border:1px dashed var(--line-strong);
  border-radius:9px;padding:11px;width:100%;cursor:pointer;min-height:var(--tap);transition:border-color .14s}
.add-btn:hover{border-color:var(--teal)}

/* ---------- pan fields ---------- */
.pan-block{margin-bottom:18px}
.pan-block > label{display:block;font-size:13.5px;font-weight:550;margin-bottom:8px}
.pan-fields{display:flex;gap:8px;flex-wrap:wrap;align-items:center;row-gap:8px}
.pan-fields .input,.pan-fields .select{width:auto;flex:1 1 70px;min-width:64px}

/* ---------- generic content pages (about/contact/methodology/privacy/hub) ---------- */
.content-prose{max-width:68ch;padding:8px 0 20px;font-size:18px;line-height:1.7;color:var(--ink-2)}
.content-prose h2{font-size:26px;letter-spacing:-.02em;margin:36px 0 14px;font-weight:680;color:var(--ink)}
.content-prose h3{font-size:20px;margin:26px 0 10px;font-weight:640;color:var(--ink)}
.content-prose p{margin-bottom:16px}
.content-prose ul{margin:0 0 16px 22px}
.content-prose li{margin-bottom:9px}
.content-prose a{color:var(--teal-text);font-weight:500}

/* ---- free-tools network directory ---- */
.content-prose.wide{max-width:104ch}
.net-cat{font-size:15px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-2);margin:34px 0 4px}
.net-count{font-family:var(--mono);font-size:13px;color:var(--ink-soft);margin:0 0 16px}
.net-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px;margin-bottom:8px}
.net-item{border:1px solid var(--line);border-radius:10px;padding:16px 18px;background:var(--card)}
.net-item a.net-url{color:#1a56db;font-weight:700;text-decoration:none;font-size:17px;word-break:break-word}
.net-item a.net-url:hover{text-decoration:underline}
.net-item p{margin:6px 0 0;font-size:15.5px;color:var(--ink-2);line-height:1.55}
.net-note{margin-top:30px;font-size:15px;color:var(--ink-2);border-top:1px solid var(--line);padding-top:18px;line-height:1.6}
.net-note code{font-family:var(--mono);font-size:13.5px;background:var(--panel);padding:1px 5px;border-radius:4px}

/* hub grid */
.hub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:10px 0 30px}
@media(max-width:820px){.hub-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.hub-grid{grid-template-columns:1fr}}
.hub-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;
  text-decoration:none;color:inherit;transition:transform .14s,box-shadow .14s,border-color .14s}
.hub-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.hub-card .idx{font-family:var(--mono);font-size:11px;color:var(--brass-text);letter-spacing:.06em}
.hub-card b{display:block;font-size:19px;letter-spacing:-.01em;margin:10px 0 6px;color:var(--ink)}
.hub-card span{font-size:15px;color:var(--ink-soft);line-height:1.5}
.hub-card.soon{opacity:.6;pointer-events:none}
.hub-card.soon::after{content:"soon";font-family:var(--mono);font-size:10px;text-transform:uppercase;color:var(--brass-text)}

/* ---------- safety banner (roast calculator) — sits in dark readout ---------- */
.safety{font-size:12.5px;line-height:1.5;border-radius:9px;padding:11px 13px;margin-bottom:14px;font-weight:500}
.safety.ok{background:rgba(21,179,166,.12);color:#9fe0d8;border:1px solid rgba(21,179,166,.3)}
.safety.warn{background:#3a1d14;color:#f0c0a0;border:1px solid #8a4530}

/* ---------- contextual next-step prompt (in dark readout) ---------- */
.next-step{display:flex;gap:10px;align-items:flex-start;margin-top:13px;padding-top:13px;
  border-top:1px solid rgba(255,255,255,.08);font-size:12.5px;line-height:1.5;color:#9aa7a4}
.next-step-label{font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--slate);background:var(--teal-bright);padding:2px 7px;border-radius:5px;flex:none;margin-top:1px}
.next-step a{color:var(--teal-bright);text-decoration:none;font-weight:500}
.next-step a:hover{text-decoration:underline}

/* ---------- recipe scaler output ---------- */
.scale-line{display:flex;flex-direction:column;gap:1px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.scale-line.blank{padding:4px 0;border:none}
.scale-line .sl-new{font-family:var(--mono);font-size:14px;color:#e8eeec}
.scale-line .sl-old{font-size:11px;color:#7a8784}
.scale-line.unparsed .sl-new{color:#f0c0a0}
.scale-line .sl-flag{font-size:10.5px;color:#d98c4a;font-family:var(--mono);letter-spacing:.03em}
.scaler-actions{display:flex;gap:8px;margin-top:14px}
.scaler-actions button{flex:1;font-family:var(--mono);font-size:13px;cursor:pointer;
  background:rgba(255,255,255,.06);color:#cfe9e6;border:1px solid rgba(255,255,255,.14);
  border-radius:8px;padding:10px;min-height:var(--tap);transition:background .14s}
.scaler-actions button:hover{background:rgba(255,255,255,.12)}
.textarea{width:100%;font-family:var(--mono);font-size:14px;color:var(--ink);background:var(--paper);
  border:1px solid var(--line-strong);border-radius:9px;padding:12px 14px;min-height:160px;resize:vertical;line-height:1.5}
.textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(21,179,166,.4)}

/* ---------- preset worked-example box ---------- */
.preset-example{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--teal);
  border-radius:var(--radius);padding:16px 20px;margin-bottom:22px;max-width:64ch}
.preset-example .pe-label{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--teal-text);display:block;margin-bottom:6px}
.preset-example p{font-size:14.5px;line-height:1.6;color:var(--ink);margin:0}

/* ---------- guide pages ---------- */
.guide{max-width:72ch;margin:0}
.guide-lede{font-size:20px;line-height:1.6;color:var(--ink);margin:0 0 28px;font-weight:440}
.guide h2{font-size:26px;margin:42px 0 14px;letter-spacing:-.015em;font-weight:680;color:var(--ink)}
.guide h3{font-size:20px;margin:28px 0 10px;font-weight:640;color:var(--ink)}
.guide p{font-size:17.5px;line-height:1.72;color:var(--ink-2);margin:0 0 18px}
.guide a{color:var(--teal-text);text-decoration:underline;text-underline-offset:2px;font-weight:500}
.howto-steps{counter-reset:step;list-style:none;padding:0;margin:0 0 22px}
.howto-steps li{position:relative;padding:12px 0 12px 42px;font-size:17px;line-height:1.6;
  color:var(--ink-2);border-bottom:1px solid var(--line)}
.howto-steps li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:11px;
  width:28px;height:28px;border-radius:50%;background:var(--teal);color:#fff;font-family:var(--mono);
  font-size:14px;display:flex;align-items:center;justify-content:center;font-weight:600}
.guide-list{margin:0 0 20px;padding-left:24px}
.guide-list li{font-size:17.5px;line-height:1.7;color:var(--ink-2);margin-bottom:10px}
.guide-callout{background:var(--panel);border-left:3px solid var(--brass);border-radius:8px;
  padding:15px 18px;margin:0 0 22px;font-size:16.5px;line-height:1.62;color:var(--ink-2)}
.guide-callout .gc-label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--brass-text);margin-bottom:6px;font-weight:600}
.guide-embed{border:1px solid var(--line-strong);border-radius:var(--radius);padding:18px;margin:26px 0;
  background:linear-gradient(180deg,rgba(21,179,166,.04),transparent)}
.guide-embed-top{margin:8px 0 30px}
.guide-embed .ge-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.guide-embed .ge-label{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--slate);background:var(--teal-bright);padding:3px 9px;border-radius:5px;font-weight:600}
.guide-embed .ge-title{font-weight:600;font-size:15px}
.guide-embed .ge-cta{display:inline-block;margin-top:12px;font-family:var(--mono);font-size:13px;
  color:var(--teal-text);text-decoration:none;font-weight:500}
.guide-embed .ge-cta:hover{text-decoration:underline}
.guide-author{display:flex;gap:14px;align-items:center;margin:36px 0 14px;padding:16px;
  background:var(--panel);border-radius:var(--radius);border:1px solid var(--line)}
.guide-author .ga-avatar{width:46px;height:46px;border-radius:50%;background:var(--slate);color:#fff;
  font-family:var(--mono);font-weight:600;display:flex;align-items:center;justify-content:center;flex:none}
.guide-author .ga-name{font-weight:600;font-size:15px}
.guide-author .ga-bio{font-size:13px;color:var(--ink-soft);line-height:1.5;margin-top:3px}
.guide-method{font-size:13px;color:var(--ink-soft)}

/* ---------- result share / download actions (in dark readout) ---------- */
.result-actions{display:flex;gap:8px;margin-top:14px;padding-top:13px;border-top:1px solid rgba(255,255,255,.08)}
.ra-btn{flex:1;font-family:var(--mono);font-size:12.5px;cursor:pointer;min-height:var(--tap);
  background:rgba(255,255,255,.06);color:#cfe9e6;border:1px solid rgba(255,255,255,.14);
  border-radius:8px;padding:9px 10px;transition:background .14s}
.ra-btn:hover{background:rgba(255,255,255,.12)}
.ra-btn.ra-primary{background:var(--teal-bright);color:var(--slate);border-color:var(--teal-bright);font-weight:600}
.ra-btn.ra-primary:hover{filter:brightness(1.06)}
.share-msg{margin-top:9px;font-family:var(--mono);font-size:11.5px;color:var(--teal-bright);
  word-break:break-all;line-height:1.4}

/* ---------- show-your-work accordion (pan converter) ---------- */
.work-accordion{margin-top:18px;border:1px solid var(--line-strong);border-radius:var(--radius);overflow:hidden;background:var(--card)}
.work-head{width:100%;display:flex;align-items:center;gap:12px;padding:14px 18px;background:none;border:none;
  cursor:pointer;font-family:inherit;text-align:left;min-height:var(--tap)}
.work-head:hover{background:var(--panel)}
.work-head-label{font-weight:600;font-size:14.5px;color:var(--ink)}
.work-head-pans{font-family:var(--mono);font-size:12px;color:var(--ink-soft);flex:1}
.work-chevron{font-family:var(--mono);font-size:18px;color:var(--teal-text);width:20px;text-align:center}
.work-panel{display:none;padding:0 18px 16px;border-top:1px solid var(--line)}
.work-panel.open{display:block}
.work-content{padding-top:14px}
.work-step{padding:11px 0;border-bottom:1px solid var(--line)}
.work-step:last-child{border-bottom:none}
.ws-label{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--ink-soft);
  text-transform:uppercase;letter-spacing:.04em;margin-bottom:5px}
.ws-tag{font-family:var(--mono);font-size:9px;letter-spacing:.06em;padding:2px 6px;border-radius:4px;text-transform:none}
.ws-tag.exact{background:rgba(15,138,130,.12);color:var(--teal-text)}
.ws-tag.guide{background:rgba(140,100,56,.12);color:var(--brass-text)}
.ws-formula{font-family:var(--mono);font-size:15px;color:var(--ink);margin-bottom:4px;font-weight:500}
.ws-plain{font-size:13.5px;line-height:1.55;color:var(--ink-2)}
.work-step.guidance{background:rgba(140,100,56,.04);margin:0 -18px;padding-left:18px;padding-right:18px}
.work-foot{font-size:12px;color:var(--ink-soft);margin:12px 0 0;line-height:1.5;font-style:italic}

/* ---------- embed directory ---------- */
.embed-card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin:22px 0;background:var(--card)}
.embed-card-head h3{margin:0 0 4px;font-size:19px}
.embed-card-head p{margin:0 0 16px;color:var(--ink-soft);font-size:14px}
.embed-preview{margin-bottom:16px}
.embed-snippet-wrap{display:flex;flex-direction:column;gap:8px}
.embed-snippet-label{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-soft)}
.embed-snippet{font-family:var(--mono);font-size:12px;line-height:1.5;padding:12px;border:1px solid var(--line-strong);
  border-radius:8px;background:var(--panel);color:var(--ink-2);resize:vertical;width:100%;box-sizing:border-box}
.embed-copy{align-self:flex-start;font-family:var(--mono);font-size:12.5px;cursor:pointer;min-height:var(--tap);
  background:var(--teal-bright);color:var(--slate);border:none;border-radius:8px;padding:9px 16px;font-weight:600}
.embed-copy:hover{filter:brightness(1.06)}

:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}

/* ---------- print ---------- */
@media print{
  body{background:#fff;color:#000;font-size:12pt}
  body::before{display:none}
  .bar .nav,.crumb,.siblings,.foot,[data-ad],.ad-slot{display:none !important}
  .calc{grid-template-columns:1fr 1fr;gap:16px;page-break-inside:avoid}
  .panel{border:1px solid #000;background:#fff;box-shadow:none}
  /* rescue the dark readout so result numbers actually print */
  .device{background:#fff;box-shadow:none;padding:0}
  .device-inner{background:#fff;border:1px solid #000;color:#000}
  .device-inner::after{display:none}
  .dev-label,.rrow .k,.meta-line .tag{color:#000}
  .result-rows{background:#000;border:1px solid #000}
  .rrow{background:#fff}
  .rrow .v,.rrow.minor .v{color:#000;text-shadow:none}
  .rrow .v small{color:#333}
  .dev-meta{border-top:1px solid #999}
  .meta-line,.meta-line.peak .val,#rd-use,#rd-temp-val{color:#000}
  .honesty-note{color:#333;border-left-color:#000}
  .prose .formula{background:#fff;border:1px solid #000;border-left:3px solid #000;color:#000}
  .ref-table td:first-child{color:#000}
  a{color:#000;text-decoration:underline}
}
.result-actions.one{justify-content:flex-end}