/* CEX2: "cast and measured". Tokens first; every rule below uses them.
   Palette and type from ui-design-guide §4. Hard bans from §5 (no gradients, no glass, no eyebrows, no icon cards). */
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/plex-sans-400.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url(../fonts/plex-sans-600.woff2) format("woff2");font-weight:600;font-style:normal;font-display:swap}

:root{
  --ground:#FFFFFF; --surface:#FFFFFF; --tone:#F3F4F5; --ink:#15181B; --field:#1E2328; --field-2:#283037;
  --accent:#C2410C; --accent-dark:#9A3412; --muted:#3D444B; --line:#D9DCDF; --line-dark:#3B444C; --on-field:#EDEEEC; --on-field-muted:#B4BBC1;
  --font:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --fs-s:16px; --fs-b:18px; --fs-m:22px; --fs-l:36px; --fs-xl:48px;
  --wrap:1280px; --gut:32px; --band:96px; --gap:56px;
}
@media (max-width:900px){:root{--fs-b:17px; --fs-m:20px; --fs-l:28px; --fs-xl:34px; --gut:20px; --band:64px; --gap:32px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:24px}
body{margin:0;background:var(--ground);color:var(--ink);font:400 var(--fs-b)/1.55 var(--font);font-feature-settings:"tnum" 0}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
h1,h2,h3{font-weight:600;letter-spacing:-0.015em;margin:0 0 .5em;text-wrap:balance}
h1{font-size:var(--fs-xl);line-height:1.08;max-width:22ch}
h2{font-size:var(--fs-l);line-height:1.12;max-width:30ch}
h3{font-size:var(--fs-m);line-height:1.2;letter-spacing:-0.01em}
p{margin:0 0 1em;max-width:68ch}
ul,ol{margin:0 0 1em;padding-left:1.2em}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:var(--gut)}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px}.skip:focus{left:8px;top:8px;z-index:99;background:var(--surface);padding:8px 12px}
.statement{font-size:var(--fs-m);line-height:1.4;max-width:34ch}
.note,.hint{font-size:var(--fs-s);color:var(--muted)}
.num{font-variant-numeric:tabular-nums;white-space:nowrap}
mark.tbc{background:#FBE1D1;color:var(--ink);padding:0 .25em;font-size:.9em}

/* Buttons and links */
.btn{transition:background-color .15s;display:inline-flex;align-items:center;min-height:48px;padding:12px 22px;background:var(--accent);color:#fff;font:600 var(--fs-s)/1.2 var(--font);text-decoration:none;border:0;border-radius:0;cursor:pointer}
.btn:hover{background:var(--accent-dark)}
.btn--quiet{background:var(--ink)}.btn--quiet:hover{background:#000}
.link-arrow{font-weight:600;text-decoration:none;display:inline-flex;gap:.4em;align-items:center;min-height:44px}
.link-arrow::after{content:"\2192"}
.link-arrow:hover{text-decoration:underline}
.link-arrow--light{color:var(--on-field)}

/* Staging */
.staging-bar{background:var(--ink);color:#fff;font-size:var(--fs-s);padding:8px 0}
.staging-notes{background:#FFF7D6;padding:40px 0;font-size:var(--fs-s)}
.staging-notes h2{font-size:var(--fs-m)}
.staging-notes__list{columns:3 260px;padding-left:1.2em}
.staging-notes code{font-size:14px}

/* Top bar + masthead */
.topbar{background:var(--tone);color:var(--ink);font-size:14px}
.topbar__inner{display:flex;gap:24px;align-items:center;min-height:36px;flex-wrap:wrap}
.topbar p{margin:0}
.topbar__links,.lang{display:flex;gap:20px;list-style:none;margin:0;padding:0}
.topbar__links{margin-left:auto}
.topbar a{color:var(--ink);text-decoration:none}.topbar a:hover{text-decoration:underline}
.lang a{display:inline-block;padding:6px 2px}
.lang a[aria-current]{font-weight:600;text-decoration:underline}
.masthead{background:#fff;position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.masthead__inner{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{flex:none;display:block;padding:8px 0}
.logo img{height:38px;width:auto}
.wordmark{display:flex;flex-direction:column;text-decoration:none;line-height:1.1;flex:none}
.wordmark__name{font-weight:600;font-size:22px;letter-spacing:-0.02em}
.wordmark__desc{font-size:var(--fs-s);color:var(--muted)}
.nav{margin-left:auto}
.nav__list{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav__top{display:flex;align-items:center;gap:6px;padding:12px 10px;font-size:var(--fs-s);text-decoration:none;white-space:nowrap}
.nav__top{color:var(--ink);font-weight:600;border-bottom:2px solid transparent;transition:color .15s,border-color .15s}
.nav__top:hover{color:var(--accent-dark);text-decoration:none}
.nav__top[aria-current]{color:var(--accent-dark);border-bottom-color:var(--accent)}
.caret{flex:none}
.has-sub{position:relative}
.sub{display:none;position:absolute;left:0;top:100%;background:var(--surface);min-width:280px;padding:16px 0;box-shadow:0 12px 32px rgba(21,24,27,.16)} /* taste-skill-ignore: dropdown menu is a real overlay */
.has-sub:hover>.sub,.has-sub:focus-within>.sub{display:block}
.sub__list{list-style:none;margin:0;padding:0}
.sub__list a{display:block;padding:9px 22px;font-size:var(--fs-s);text-decoration:none}
.sub__list a:hover,.sub__list a[aria-current]{background:var(--tone);text-decoration:underline}
.has-sub--wide .sub{left:auto;right:-160px;width:720px}
.has-sub--wide .sub__list{display:grid;grid-template-columns:repeat(3,1fr);gap:0 8px}
.sub__group ul{list-style:none;margin:0;padding:0}
.sub__label{display:block;padding:6px 22px 8px;font-weight:600;font-size:var(--fs-s)}
.btn--head{flex:none}
.nav-toggle{display:none}
@media (max-width:1279px){
  .masthead__inner{flex-wrap:wrap;gap:12px 20px}
  .nav-toggle{display:inline-flex;align-items:center;min-height:44px;padding:0 16px;margin-left:auto;background:var(--ink);color:#fff;border:0;font:600 var(--fs-s) var(--font);cursor:pointer}
  .btn--head{order:2}
  .nav{order:3;flex-basis:100%;margin:0}
  .js .nav{display:none}
  .js .masthead.is-open .nav{display:block}
  .nav__list{flex-direction:column;gap:0;padding-bottom:24px}
  .nav__top{padding:12px 0;font-size:var(--fs-b);font-weight:600}
  .sub{display:block;position:static;box-shadow:none;background:transparent;padding:0 0 8px;min-width:0}
  .has-sub--wide .sub{width:auto}
  .has-sub--wide .sub__list{grid-template-columns:1fr}
  .sub__list a{padding:8px 0 8px 16px}
  .sub__label{padding:8px 0 4px 16px}
  .caret{display:none}
}
@media (max-width:600px){.btn--head{display:none}.topbar__who{display:none}.topbar__links{margin-left:0;gap:14px}.topbar__links li:last-child{display:none}.lang{margin-left:auto}}

/* Bands */
.band{padding-block:var(--band)}
.band--tone,.rfq-band{background:var(--tone)}
.field{background:var(--field);color:var(--on-field)}
.field .note,.field .hint,.field figcaption{color:var(--on-field-muted)}
.field a{color:#fff}
.band__head{max-width:760px;margin-bottom:40px}
.band__head h2{margin-bottom:16px}
.band__head p{margin:0;color:var(--muted)}
.split{display:grid;grid-template-columns:5fr 7fr;gap:var(--gap);align-items:start}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:20px}}

/* Breadcrumbs */
.crumbs ol{display:flex;flex-wrap:wrap;list-style:none;padding:0;margin:0 0 28px;font-size:var(--fs-s);color:var(--muted)}
.crumbs li+li::before{content:"/";padding:0 .5em}
.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}

/* Home hero */
.hero__actions{display:flex;flex-wrap:wrap;gap:16px 28px;align-items:center;margin:32px 0 40px}
.hero__media figcaption,.fig figcaption,.page-hero__media figcaption,.wedge__media figcaption,.plant__media figcaption{font-size:var(--fs-s);color:var(--muted);margin-top:10px;max-width:52ch}
.spec-strip{border-collapse:collapse;width:100%;max-width:560px;font-size:var(--fs-s);background:var(--surface)}
.spec-strip th,.spec-strip td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--ground);vertical-align:top}
.spec-strip th{font-weight:400;color:var(--muted);width:44%}
.spec-strip td{font-weight:600;font-variant-numeric:tabular-nums}

/* Page hero (service / application) */
.page-hero{padding:32px 0 72px}
.page-hero__grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--gap);align-items:end}
.page-hero h1{max-width:20ch}
.page-hero__media{margin:0;justify-self:end}
@media (max-width:900px){.page-hero__grid{grid-template-columns:1fr}.page-hero__media{justify-self:start}}

/* Tables (lines allowed: real data) */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.data{border-collapse:collapse;width:100%;background:var(--surface);font-size:var(--fs-s);line-height:1.45}
.data caption{caption-side:bottom;text-align:left;padding-top:10px;color:var(--muted);font-size:14px}
.data th,.data td{text-align:left;vertical-align:top;padding:14px 16px;border-bottom:1px solid var(--line)}
.data thead th{background:var(--tone);color:var(--ink);font-weight:600;border-bottom:1px solid var(--ink)}
.data tbody th{font-weight:600;min-width:160px}
.data tfoot td{font-size:var(--fs-s);color:var(--muted);border-bottom:0;background:var(--ground)}
.data td{font-variant-numeric:tabular-nums}
.data--dark{background:var(--field-2);color:var(--on-field)}
.data--dark thead th{background:#0F1215;color:#fff;border-bottom:0}
.data--dark th,.data--dark td{border-bottom-color:var(--line-dark)}
.facts-table{border-collapse:collapse;width:100%;font-size:var(--fs-b)}
.facts-table th,.facts-table td{text-align:left;vertical-align:top;padding:12px 0;border-bottom:1px solid var(--line)}
.facts-table th{font-weight:400;color:var(--muted);width:38%;padding-right:20px;font-size:var(--fs-s)}

/* Parts catalogue (real photos; allowed grid) */
.part-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:40px 32px}
.part{background:var(--surface);padding:24px 24px 28px;font-size:var(--fs-s)}
.part img{margin:0 auto 20px}
.part h3{font-size:var(--fs-m);margin-bottom:4px}
.part__tags{font-weight:600;margin-bottom:8px}
.part p:last-child{margin:0}
.parts .note{margin-top:24px}
@media (max-width:1100px){.part-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.part-grid{grid-template-columns:1fr}}

/* Squeeze wedge */
.wedge__grid{display:grid;grid-template-columns:5fr 7fr;gap:var(--gap);align-items:center}
.wedge__media{margin:0}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:32px 0}
.facts div{background:var(--surface);padding:20px}
.facts dt{font-size:var(--fs-m);font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-0.01em}
.facts dd{margin:6px 0 0;font-size:var(--fs-s)}
.facts--stack{grid-template-columns:1fr;margin:0}
@media (max-width:900px){.wedge__grid{grid-template-columns:1fr}.facts{grid-template-columns:1fr}}

/* Quality (dark field) */
.quality__grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--gap);align-items:start}
.quality__photos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quality__photos .fig{margin:0}
.certline{margin-top:48px;font-size:var(--fs-s);max-width:none;color:var(--on-field-muted)}
@media (max-width:900px){.quality__grid{grid-template-columns:1fr}}

/* Results */
.result{display:grid;grid-template-columns:320px 1fr;gap:var(--gap);padding:40px 0;border-top:6px solid var(--ink)}
.result+.result{border-top-width:6px}
.result__num{font-size:var(--fs-xl);font-weight:600;line-height:1;letter-spacing:-0.03em;margin:0;font-variant-numeric:tabular-nums}
@media (max-width:900px){.result{grid-template-columns:1fr;gap:12px}}

/* Plant */
.plant__grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--gap);align-items:start}
.plant__media{margin:0}
@media (max-width:900px){.plant__grid{grid-template-columns:1fr}}

/* RFQ band */
.rfq-band__grid{display:grid;grid-template-columns:6fr 6fr;gap:var(--gap)}
.steps{padding-left:1.4em;margin:0 0 1em}
.steps li{margin-bottom:12px;padding-left:4px}
.steps li::marker{font-weight:600}
@media (max-width:900px){.rfq-band__grid{grid-template-columns:1fr}}

/* Guides */
.guide-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.guide-list a{font-size:var(--fs-m);font-weight:600;letter-spacing:-0.01em}
.guide-list p{margin-top:8px;font-size:var(--fs-s)}
@media (max-width:900px){.guide-list{grid-template-columns:1fr;gap:28px}}

/* FAQ */
.faq__grid{display:grid;grid-template-columns:4fr 8fr;gap:var(--gap)}
.faq dl{margin:0}
.faq__item{padding:0 0 28px}
.faq dt{font-weight:600;font-size:var(--fs-b);margin-bottom:6px}
.faq dd{margin:0;max-width:68ch}
@media (max-width:900px){.faq__grid{grid-template-columns:1fr;gap:16px}}

/* Content components */
.fig{margin:0}
.fig--diagram{background:var(--surface);padding:40px;margin:0}
.fig--diagram figcaption{margin-top:16px}
.diagram{width:100%;max-width:960px}
.note-template{margin-top:48px;background:var(--surface);padding:32px;max-width:900px}
.note-template__text{font-size:var(--fs-b);line-height:1.7;max-width:none;font-variant-numeric:tabular-nums}
.cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:40px}
.cols3 h3{font-size:var(--fs-m)}
@media (max-width:900px){.cols3{grid-template-columns:1fr;gap:28px}.fig--diagram{padding:16px}}
.evidence{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start}
.evidence .fig{max-width:400px}
.ticks{list-style:none;padding:0;margin:0}
.ticks li{position:relative;padding:10px 0 10px 28px}
.ticks li::before{content:"";position:absolute;left:0;top:19px;width:10px;height:10px;background:var(--ink)}

/* Resource layout */
.res-head{padding:32px 0 56px}
.res-head--tight{padding-bottom:16px}
.res-head h1{max-width:22ch}
.byline{font-size:var(--fs-s);color:var(--muted);margin-top:24px;max-width:none}
.res-body{display:grid;grid-template-columns:260px minmax(0,1fr);gap:var(--gap);padding-bottom:var(--band)}
.toc{position:sticky;top:24px;align-self:start;font-size:var(--fs-s)}
.toc h2{font-size:var(--fs-b);letter-spacing:0}
.toc ol{padding-left:1.2em}
.toc li{margin-bottom:8px}
.toc a{text-decoration:none}.toc a:hover{text-decoration:underline}
.prose{max-width:860px}
.prose>h2{margin-top:72px;font-size:var(--fs-l)}
.prose>h2:first-child{margin-top:0}
.prose .data{margin:24px 0}
.essentials{padding-left:1.4em}
.essentials li{margin-bottom:14px;padding-left:6px}
.essentials li::marker{font-weight:600}
.related{font-size:var(--fs-s);margin-top:48px}
.prose--legacy{padding-bottom:var(--band)}
.prose--legacy img{max-width:100%}
@media (max-width:900px){.res-body{grid-template-columns:1fr}.toc{position:static;background:var(--tone);padding:20px}}

/* Brief builder (the one live element on the RFQ checklist) */
.brief-tool{background:var(--surface);padding:32px;margin:24px 0}
.brief-tool__fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}
.brief-tool label,.form label{display:block;font-size:var(--fs-s);font-weight:600}
.brief-tool input,.form input:not([type=checkbox]):not([type=file]),.form select,.form textarea,.brief-tool textarea{display:block;width:100%;margin-top:6px;min-height:48px;padding:10px 12px;font:400 var(--fs-b)/1.4 var(--font);color:var(--ink);background:var(--surface);border:1px solid #858C93;border-radius:0}
.brief-tool__out{margin-top:28px}
.brief-tool__status{font-weight:600}
.brief-tool__actions{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;margin-top:16px}
@media (max-width:700px){.brief-tool{padding:20px}.brief-tool__fields{grid-template-columns:1fr}}

/* RFQ form page */
.rfq{padding-top:40px}
.rfq__grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--gap);align-items:start}
.form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;background:var(--surface);padding:40px}
.form__row--full{grid-column:1/-1}
.form input[type=file]{display:block;margin-top:8px;font:inherit;font-size:var(--fs-s)}
.form .hint{margin:8px 0 0;font-weight:400}
.form__more{background:var(--ground);padding:0 24px}
.form__more summary{cursor:pointer;font-weight:600;padding:16px 0;min-height:44px}
.form__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding-bottom:24px}
.check{display:flex!important;gap:12px;align-items:flex-start;font-weight:400!important;font-size:var(--fs-s);margin-bottom:12px}
.check input{width:20px;height:20px;margin-top:2px;flex:none;accent-color:var(--accent)}
.hp{position:absolute;left:-9999px}
.form__submit{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.form__submit .hint{margin:0}
.rfq__side h2{font-size:var(--fs-m)}
.rfq__side h3{font-size:var(--fs-b);margin-top:32px;letter-spacing:0}
.contact-card__name{font-size:var(--fs-m);font-weight:600;margin-bottom:8px}
.contact-card__name span{display:block;font-size:var(--fs-s);font-weight:400;color:var(--muted)}
.contact-card ul{list-style:none;padding:0}
.contact-card li{padding:6px 0}
.rfq-help__grid{display:grid;grid-template-columns:5fr 7fr;gap:var(--gap)}
.rfq-help{background:var(--tone)}
@media (max-width:900px){.rfq__grid,.rfq-help__grid{grid-template-columns:1fr}.form,.form__grid{grid-template-columns:1fr;padding:20px}.form__more{padding:0 16px}}

/* Footer: the name returns at full width */
.site-foot{background:var(--field);color:var(--on-field);padding:96px 0 40px;font-size:var(--fs-s)}
.site-foot a{color:var(--on-field)}
.site-foot__name{font-size:var(--fs-l);font-weight:600;letter-spacing:-0.015em;line-height:1.1;margin:0 0 40px;max-width:none}
.site-foot__grid{display:grid;grid-template-columns:4fr 3fr 5fr;gap:var(--gap)}
.nap{font-style:normal}
.nap p{margin:0 0 8px}
.nap__who{font-size:var(--fs-b)}
.foot-nav ul{list-style:none;padding:0;margin:0}
.foot-nav li{padding:5px 0}
.site-foot__cert p{color:var(--on-field-muted)}
.site-foot__legal{display:flex;flex-wrap:wrap;gap:20px;align-items:center;margin-top:64px;padding-top:24px;background:transparent}
.site-foot__legal ul{display:flex;gap:24px;list-style:none;padding:0;margin:0}
.site-foot__legal a{display:inline-block;padding:10px 0}
.site-foot__legal .lang{margin-left:auto}
@media (max-width:900px){.site-foot__grid{grid-template-columns:1fr;gap:32px}.site-foot{padding-top:64px}}

@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Review round 1 fixes */
@media (max-width:600px){.topbar__inner{flex-wrap:nowrap;gap:14px}.lang{gap:12px}}
@media (max-width:900px){.table-scroll .data{min-width:620px}}
.ticks li{border-bottom:0;padding:8px 0 8px 28px}
.ticks li::before{top:17px}
.staging-notes code{font-family:var(--font);font-weight:600;font-size:var(--fs-s)}
.how-box{display:grid;grid-template-columns:auto 1fr;gap:32px;background:var(--tone);padding:32px;margin:48px 0;align-items:start}
.how-box h3{font-size:var(--fs-m)}
.how-box p:last-child{margin-bottom:0}
@media (max-width:700px){.how-box{grid-template-columns:1fr;padding:20px}}

/* round 2: captions on dark field keep on-field-muted (Lighthouse contrast) */
.field .fig figcaption,.field figure figcaption{color:var(--on-field-muted)}
@media (max-width:900px){.plant__media{order:2}}


.cap__grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:var(--gap);align-items:center}
.cap__fig{margin:0;background:var(--surface);padding:32px}
.cap__links{display:flex;flex-wrap:wrap;gap:4px 28px;margin-top:24px}
.cap__compare{margin-top:72px}
.certs{margin-top:72px}
.certs h3{color:var(--on-field)}
.cert-list{list-style:none;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.cert-list li{background:var(--field-2);padding:20px;font-size:var(--fs-s);color:var(--on-field-muted)}
.cert-list strong{display:block;font-size:20px;letter-spacing:-0.01em;color:#fff;margin-bottom:8px}
.cert-list span{font-size:var(--fs-s);color:var(--on-field-muted);font-variant-numeric:tabular-nums}
.certs .certline{margin-top:20px}
.certs .certline a{color:var(--on-field)}
.guide-list{row-gap:48px}
@media (max-width:900px){
  .problem-list,.cap__grid,.process__plant,.results-row{grid-template-columns:1fr;gap:40px}
  .process-steps{grid-template-columns:1fr;gap:32px}
  .cert-list{grid-template-columns:1fr 1fr}
  .cap__fig{padding:16px}
  .cap__compare{margin-top:48px}
  .process__plant{margin-top:56px}
  .guide-list{grid-template-columns:1fr}
}
@media (min-width:901px) and (max-width:1100px){.process-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.cert-list{grid-template-columns:repeat(2,1fr)}}

.family-grid{list-style:none;margin:0 0 64px;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.family{background:var(--surface);padding:24px;font-size:var(--fs-s)}
.family img{margin:0 auto 20px}
.family h3{font-size:22px;margin-bottom:6px}
.family h3 a{text-decoration:none}.family h3 a:hover{text-decoration:underline}
.family p{margin:0}
.family__ph{aspect-ratio:370/260;background:var(--tone);display:flex;align-items:center;justify-content:center;padding:16px;margin-bottom:20px;text-align:center}
.factory__grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:var(--gap);align-items:start}
.factory__photos{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:start}
.factory__lead{grid-column:1/-1;margin:0}
.factory__photos .fig{margin:0}
.factory__photos .fig figcaption{font-size:14px}
.measured{margin-top:64px}
.measured h3{color:var(--on-field)}
.quality__links{display:flex;flex-wrap:wrap;gap:4px 28px}
.final-cta__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:var(--gap);align-items:start}
.final-cta .lede{font-size:var(--fs-b);max-width:56ch}
@media (max-width:900px){
  .family-grid{grid-template-columns:1fr 1fr;gap:16px}
  .family{padding:16px}
  .enough{grid-template-columns:1fr;gap:12px;padding:24px}
  .process-steps--4{grid-template-columns:1fr}
  .factory__grid,.final-cta__grid{grid-template-columns:1fr;gap:40px}
  .factory__photos{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){.family-grid{grid-template-columns:1fr}}

.data--dark caption{color:var(--on-field-muted)}
.staging-bar{font-family:system-ui,-apple-system,"Segoe UI",sans-serif}

.layer-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.layer{background:var(--surface);padding:28px}

.layer p{font-size:var(--fs-s)}
.layer__links{display:flex;flex-direction:column;gap:2px;margin:0}
.family__def{margin-top:12px!important;padding-top:10px;font-size:14px;font-weight:600;color:var(--ink);border-top:2px solid var(--ground)}
.form--compact{grid-template-columns:1fr;gap:16px;padding:28px;margin:24px 0 16px}
.form--compact .form__row--2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form--compact p{margin:0}
.form__status{font-size:var(--fs-s);font-weight:600}
.final-cta__side{display:flex;flex-direction:column;gap:16px}
@media (max-width:900px){
  .layer-list,.case-slots{grid-template-columns:1fr}
  .form--compact .form__row--2{grid-template-columns:1fr}
  .form--compact{padding:20px}
}


/* ===== v4 "engineering datasheet" (design-critique-2026-10-18) ===== */
.hero{padding:48px 0 64px;border-bottom:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.hero__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.hero__title{font-size:clamp(36px,3.6vw,54px);line-height:1.08;letter-spacing:-0.015em;max-width:18ch;margin:0 0 20px}
.hero__lead{font-size:20px;line-height:1.5;color:var(--muted);max-width:52ch;margin:0}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;margin:32px 0 0}
.btn--lg{min-height:52px;padding:14px 26px;font-size:var(--fs-b)}
.certbar{margin:24px 0 0;font-size:14px;color:var(--muted);max-width:none}
.hero__media{margin:0;justify-self:end;max-width:560px;width:100%}
.hero__media img{width:100%}
.hero__media figcaption{font-size:14px;color:var(--muted);margin-top:8px}
.hero__nums{margin:48px 0 0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.hero__nums div{padding:20px 24px 0 0}
.hero__nums div+div{padding-left:24px;border-left:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.hero__nums dt{font-size:28px;font-weight:600;letter-spacing:-0.015em;line-height:1.15;font-variant-numeric:tabular-nums;white-space:nowrap}
.hero__nums dd{margin:4px 0 0;font-size:14px;color:var(--muted)}
.problem-links{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 40px}
.problem-links li{padding:20px 0;border-top:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.problem-links a{font-size:var(--fs-b);font-weight:600;color:var(--ink);text-decoration:underline;text-decoration-color:var(--line);transition:color .15s,text-decoration-color .15s}
.problem-links a:hover{color:var(--accent-dark);text-decoration-color:currentColor}
.problem-links p{margin:6px 0 0;font-size:var(--fs-s);color:var(--muted)}
.cap__fig{padding:24px;border:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.cap__compare{margin-top:48px}
.enough{margin-top:40px;background:var(--surface);padding:24px 28px;border:1px solid var(--line);display:block} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.enough h3{font-size:var(--fs-b);margin:0 0 6px}
.enough p{margin:0;font-size:var(--fs-s);color:var(--muted)}
.layer{border:1px solid var(--line);padding:24px} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.layer h3{font-size:var(--fs-m)}
.layer p{color:var(--muted)}
.layer__links a{font-size:var(--fs-s);font-weight:600}
.family-grid{margin:0}
.family{border:1px solid var(--line);padding:20px} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.family h3{font-size:20px}
.family p{color:var(--muted)}
.family__def{border-top:1px solid var(--line);color:var(--ink)!important} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.family--noimg{display:flex;flex-direction:column;justify-content:flex-end;gap:8px}
.quality__photos{grid-template-columns:repeat(2,max-content);justify-content:start}
.quality__photos img{max-width:100%}
.certs{margin-top:64px}
.certs__grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:start}
.cert-list{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:0}
.certs__scans{display:flex;gap:16px;margin:0}
.certs__scans img{width:160px;height:auto}
.certs__holder{margin-top:20px;font-size:var(--fs-s);color:var(--on-field-muted);max-width:80ch}
.factory{margin-top:64px}
.factory__grid{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.factory__photos{grid-template-columns:repeat(3,max-content);justify-content:start}
.facts-table--dark th,.facts-table--dark td{border-bottom-color:var(--line-dark)}
.facts-table--dark th{color:var(--on-field-muted)}
.facts-table--dark{font-size:var(--fs-s)}
.results{margin-top:64px;padding-top:32px;border-top:1px solid var(--line-dark)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.results__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.results__row p{color:var(--on-field-muted);font-size:var(--fs-s)}
.results__num{display:block;font-size:var(--fs-l);line-height:1.1;color:#fff;letter-spacing:-0.015em;margin-bottom:8px;font-variant-numeric:tabular-nums}
.guide-list{gap:0 40px;margin-bottom:56px}
.guide-list li{border-top:1px solid var(--line);padding-top:20px} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.guide-list a{font-size:20px}
.guide-list p{color:var(--muted)}
.faq--inline{max-width:860px}
.faq--inline h3{font-size:var(--fs-m);margin-bottom:24px}
.faq--inline .faq__item{border-top:1px solid var(--line);padding:20px 0} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.faq--inline dd{color:var(--muted)}
.final-cta__grid{align-items:start}
.form--compact{border:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.res-head--rfq{padding:24px 0 24px}
.res-head--rfq h1{font-size:var(--fs-l);max-width:none;margin-bottom:8px}
.res-head--rfq .statement{font-size:var(--fs-b);max-width:80ch;margin:0;color:var(--muted)}
.res-head--rfq .crumbs ol{margin-bottom:12px}
.rfq.band{padding-top:16px}
.form{border:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.part,.brief-tool,.fig--diagram,.note-template{border:1px solid var(--line)} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
@media (max-width:999px){
  .hero{padding:32px 0 48px}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero__title{font-size:34px}
  .hero__lead{font-size:18px}
  .hero__media{justify-self:start}
  .hero__nums{grid-template-columns:1fr 1fr}
  .hero__nums div,.hero__nums div+div{padding:16px 12px 0 0;border-left:0}
  .hero__nums dt{font-size:22px;white-space:normal}
}
@media (max-width:900px){
  .problem-links{grid-template-columns:1fr}
  .certs__grid,.results__row{grid-template-columns:1fr}
  .cert-list{grid-template-columns:1fr}
  .quality__photos,.factory__photos{grid-template-columns:1fr 1fr}
  .certs__scans img{width:120px}
}
@media (min-width:901px) and (max-width:1100px){.problem-links{grid-template-columns:1fr 1fr}}

/* ===== v4 motion: one light fade-in on section blocks below the fold. site.js adds .reveal; html.motion is set only
   when IntersectionObserver exists and reduced motion is not requested. Opacity + 10px, 450ms ease-out. Nothing else moves. */
@media (prefers-reduced-motion:no-preference){
  .motion .reveal{opacity:0;transform:translateY(10px);transition:opacity .45s ease-out,transform .45s ease-out;transition-delay:var(--d,0ms)}
  .motion .reveal.is-in{opacity:1;transform:none}
}
.quality__photos,.factory__photos{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start}
.quality__photos .fig,.factory__photos .fig{flex:0 1 auto;min-width:0}
.quality__photos .fig{max-width:calc(50% - 10px)}
.factory__photos .fig{max-width:calc(33.333% - 14px)}
.quality__grid{grid-template-columns:minmax(0,6fr) minmax(0,6fr)}
.field .band__head p{color:var(--on-field-muted)}
.faq--inline{max-width:none}
.faq--inline dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:var(--gap)}
@media (max-width:900px){.faq--inline dl{grid-template-columns:1fr}}
@media (max-width:900px){.quality__grid,.factory__grid{grid-template-columns:1fr;gap:32px}.quality__photos .fig{max-width:calc(50% - 10px)}.factory__photos .fig{max-width:calc(50% - 10px)}}
/* v4.1 batch 1: hub/quality/about/worksheet components */
.field .ticks li::before,.ticks--light li::before{background:var(--on-field)}
.layer-list--4{grid-template-columns:repeat(4,minmax(0,1fr))}
.cert-list--scans{grid-template-columns:repeat(4,minmax(0,1fr))}
.cert-list--scans li{background:none;padding:0}
.cert-list--scans a{display:block;color:var(--ink);font-weight:600;text-decoration:none}
.cert-list--scans img{display:block;width:100%;height:auto;aspect-ratio:709/1024;object-fit:cover;background:var(--surface);border:1px solid var(--line);margin-bottom:12px} /* taste-skill-ignore: datasheet rule approved in design-critique-2026-10-18 */
.cert-list--scans a:hover span,.cert-list--scans a:focus-visible span{text-decoration:underline}
.cert-list--scans strong{color:var(--ink);font-size:18px;margin-bottom:4px}
.cert-list--scans span{color:var(--muted);font-weight:400}
.cert-list--scans span strong{font-weight:600}
@media (min-width:1101px){.cert-list--scans{grid-template-columns:repeat(5,minmax(0,1fr))}}
.ws{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 32px}
.ws__q{border:0;margin:0;padding:0;min-width:0}
.ws__q legend{font-weight:600;margin-bottom:12px;padding:0}
.ws__out{grid-column:1/-1;margin:8px 0 0}
.calc__out{margin-top:24px}
.page-body .essentials{max-width:760px}
.page-body .data caption{text-align:left;font-weight:600;padding-bottom:12px}
@media (max-width:900px){.layer-list--4,.cert-list--scans{grid-template-columns:repeat(2,minmax(0,1fr))}.ws{grid-template-columns:1fr}}
@media (max-width:560px){.layer-list--4{grid-template-columns:1fr}}
@media (max-width:900px){.res-body{grid-template-columns:minmax(0,1fr)}.res-body>*{min-width:0}}
.page-hero__grid:not(:has(.page-hero__media)) h1{max-width:28ch}.page-hero__grid:not(:has(.page-hero__media)) .statement{max-width:62ch}
.page-hero__grid:not(:has(.page-hero__media)){grid-template-columns:minmax(0,1fr)}
.page-hero__media img{max-height:460px;width:auto;max-width:100%}
/* v4.2 batch 2 */
.proof-panel{background:#FFF7D6;border-top:4px solid #C9A400;padding:28px 0;font-size:var(--fs-s)} /* taste-skill-ignore: staging-only proof gate, approved panel colour */
.proof-panel__h{font-weight:600;font-size:var(--fs-m);margin:0 0 8px}
.proof-panel ul{columns:2 320px;padding-left:1.2em;margin:12px 0 0}
.slot{color:var(--muted);font-style:italic}
.data td.slot{background:var(--tone)}
.legal .prose h2{font-size:var(--fs-m);margin-top:40px}
.contact-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:var(--gap);align-items:start}
@media (max-width:900px){.contact-grid{grid-template-columns:minmax(0,1fr)}}
.brief-tool select{display:block;width:100%;margin-top:6px;min-height:48px;padding:10px 12px;font:400 var(--fs-b)/1.4 var(--font);color:var(--ink);background:var(--surface);border:1px solid #858C93;border-radius:0}
@media (max-width:900px){.split{grid-template-columns:minmax(0,1fr)}}

/* 4.4.2 mobile overflow guard: grid tracks may shrink below min-content */
@media (max-width:900px){.rfq__grid,.rfq-help__grid,.final-cta__grid,.factory__grid,.form{grid-template-columns:minmax(0,1fr)}}
.form>*,.form__row>*{min-width:0}.form input[type=file],.form select{max-width:100%}

/* 4.4.2 consent line: label text is one flex item so links/parentheses wrap inline */
.check>span{flex:1 1 auto;min-width:0}
.res-head .statement{max-width:62ch;font-size:var(--fs-b);line-height:1.5}
.res-head h1{max-width:28ch}
/* RFQ batch 1 (2026-11-01): drawing-or-description group */
.form__either{border:0;padding:0;margin:0;min-width:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.form__either legend{float:left;grid-column:1/-1;width:100%;padding:0;margin:0 0 -8px;font-size:var(--fs-s);font-weight:600}
.form__either legend strong{font-weight:700;text-decoration:underline}
@media (max-width:900px){.form__either{grid-template-columns:minmax(0,1fr);gap:16px}}