*{box-sizing:border-box}html{scroll-behavior:smooth}:root{color-scheme:light;--ink:#12161c;--muted:#566271;--paper:#f7f6f2;--surface:#fff;--line:#d8dedf;--line-strong:#b7c1c5;--orange:#e43d12;--orange-dark:#a92c0b;--navy:#083f66;--green:#17613b;--steel:#eef2f2;--shadow:0 20px 55px rgba(18,22,28,.1);--radius:8px;--shell:1500px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%}button,input,select{font:inherit}h1,h2,h3,p{margin-top:0}h1{font-size:4.7rem;line-height:.92;letter-spacing:0;margin-bottom:1rem}h2{font-size:1.7rem;line-height:1.12;letter-spacing:0}h3{font-size:1.08rem;line-height:1.22;letter-spacing:0}.af-shell{width:min(var(--shell),calc(100% - 48px));margin-inline:auto}.measure{max-width:760px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.icon{width:24px;height:24px;flex:0 0 auto}.button-icon{width:18px;height:18px}.inline-icon{width:18px;height:18px;vertical-align:-3px}.af-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.af-nav{min-height:70px;display:grid;grid-template-columns:auto auto minmax(220px,360px) auto;gap:26px;align-items:center}.brand{font-size:2.45rem;font-weight:950;line-height:1;color:#050608}.nav-links{display:flex;align-items:center;gap:26px;font-weight:820;text-transform:uppercase;font-size:.88rem}.nav-links a{border-bottom:3px solid transparent;padding:25px 0 22px}.nav-links a.active{border-color:var(--orange);color:var(--orange-dark)}.nav-search{min-height:42px;display:grid;grid-template-columns:22px minmax(0,1fr);gap:8px;align-items:center;border:1px solid var(--line-strong);border-radius:6px;background:#fff;padding:0 12px}.nav-search input,.big-search input{border:0;outline:0;background:transparent;min-width:0}.search-icon{width:20px;height:20px}.button{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid var(--orange);border-radius:6px;background:var(--orange);color:#fff;font-weight:900;padding:0 18px;white-space:nowrap}.button:hover{background:var(--orange-dark);border-color:var(--orange-dark);text-decoration:none}.button.ghost{background:#fff;color:var(--ink);border-color:var(--line-strong)}.button.full{width:100%}.eyebrow{color:var(--orange);font-size:.82rem;font-weight:950;letter-spacing:.08em;text-transform:uppercase;margin-bottom:.6rem}.lead{font-size:1.18rem;color:var(--muted);max-width:760px}.home-hero{border-bottom:1px solid var(--line);background:#fff}.hero-main{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.9fr) 370px;gap:38px;min-height:560px;align-items:stretch}.hero-copy{padding:52px 0}.direct-answer{border-left:5px solid var(--orange);background:linear-gradient(135deg,#123246,#0d202c);color:#fff;border-radius:6px;padding:20px 22px;margin:25px 0 0;box-shadow:var(--shadow)}.direct-answer .eyebrow{color:#ff8b61}.action-row{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px}.hero-visual{align-self:stretch;display:flex;flex-direction:column;justify-content:center;padding:32px 20px;background-image:linear-gradient(#edf1f1 1px,transparent 1px),linear-gradient(90deg,#edf1f1 1px,transparent 1px);background-size:20px 20px}.blueprint-line{height:42px;position:relative;margin:0 80px;border-top:2px solid #1d252b;text-align:center}.blueprint-line:before,.blueprint-line:after{content:"";position:absolute;top:-7px;width:12px;height:12px;border-left:2px solid #1d252b;border-bottom:2px solid #1d252b}.blueprint-line:before{left:0;transform:rotate(45deg)}.blueprint-line:after{right:0;transform:rotate(225deg)}.diagram-row{display:grid;grid-template-columns:78px 1fr 74px;align-items:center;gap:0}.panel-drawing,.motor-drawing{height:74px;border:2px solid #56616a;background:rgba(255,255,255,.75);display:grid;place-items:center;font-weight:900}.conduit{height:18px;border:2px solid #56616a;background:#cfd7d9}.mini-table{width:260px;margin:22px auto;border-collapse:collapse;background:rgba(255,255,255,.9)}.mini-table th,.mini-table td{border:1px solid #8a969c;padding:6px 10px;text-align:left}.equation{text-align:center;font-family:Georgia,serif;font-size:1.15rem}.equation span{display:inline-block;margin-left:24px}.equation strong{display:block;color:#0f682a;margin-top:8px}.signup-panel{background:#123b54;color:#fff;padding:28px;border-left:1px solid rgba(255,255,255,.1)}.signup-head{display:flex;gap:14px;align-items:center}.signup-panel h2{margin:0}.signup-panel p{color:#e0edf2}.signup-icon{width:28px;height:28px;color:#ff6b2c}.signup-panel form{display:grid;gap:10px;margin-top:18px}.signup-panel label,.signup-panel legend{font-weight:850;font-size:.88rem}.signup-panel input,.signup-panel select{min-height:42px;border:1px solid #c9d4d9;border-radius:5px;padding:0 11px;background:#fff;color:#141a20}.checks{display:grid;gap:7px;border:0;padding:4px 0;margin:0}.checks label{font-weight:500;color:#f4f7f8}.checks input{min-height:auto}.form-note{font-size:.82rem;border-top:1px solid rgba(255,255,255,.25);padding-top:12px}.trade-band,.value-strip,.bottom-rail{border-bottom:1px solid var(--line);background:#fff}.trade-band-head{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:18px 0}.trade-tabs{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));border-top:1px solid var(--line)}.trade-tab{min-height:74px;display:flex;align-items:center;justify-content:center;gap:9px;border-bottom:3px solid transparent;color:var(--ink)}.trade-tab:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}.section{padding:42px 0}.editor-grid{display:grid;grid-template-columns:260px minmax(0,1fr) 360px;gap:28px;align-items:start}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.guide-card,.post-card,.tool-card,.side-box,.browse-panel,.latest-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius)}.guide-card{overflow:hidden;color:var(--ink)}.guide-card:hover,.tool-card:hover,.post-card:hover{border-color:var(--orange);text-decoration:none}.guide-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-bottom:1px solid var(--line)}.guide-card-body{padding:16px}.card-icon{height:124px;display:grid;place-items:center;background:var(--steel);color:var(--accent)}.card-icon .icon{width:48px;height:48px}.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.tag-row span,.filters span{display:inline-flex;min-height:24px;align-items:center;border-radius:4px;background:var(--steel);padding:0 8px;font-size:.78rem;color:#26333b}.meta-line,.row-date small,.mini-tool small,.tool-link small,.tool-card span{color:var(--muted)}.tools-panel{padding:16px}.tool-link,.mini-tool,.related-tool{display:grid;grid-template-columns:34px minmax(0,1fr) 20px;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line)}.tool-link:last-child,.mini-tool:last-child,.related-tool:last-child{border-bottom:0}.tool-link small,.mini-tool small,.related-tool small{display:block}.text-link{display:inline-flex;gap:8px;align-items:center;color:var(--navy);font-weight:900;margin-top:14px}.rail-grid{display:grid;grid-template-columns:280px minmax(0,1fr) 340px}.rail-grid>div{padding:20px;border-left:1px solid var(--line)}.rail-grid>div:last-child{border-right:1px solid var(--line)}.rail-grid a{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:8px 0}.topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.topic-tile{display:grid;gap:6px}.topic-tile .icon{color:var(--navy)}blockquote{margin:0;font-family:Georgia,serif}.quote-byline{color:var(--muted);font-size:.9rem}.hub-hero{display:grid;grid-template-columns:minmax(0,430px) minmax(0,1fr);gap:72px;align-items:center;padding:34px 0 20px}.hub-hero h1{font-size:4.2rem}.search-panel{padding:16px 0}.big-search{display:grid;grid-template-columns:28px minmax(0,1fr) 150px;align-items:center;border:1px solid var(--line-strong);border-radius:6px;background:#fff;min-height:58px;padding-left:18px}.popular-chips{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:12px}.popular-chips a{border:1px solid var(--line);background:#fff;border-radius:5px;padding:5px 10px}.hub-layout{display:grid;grid-template-columns:280px minmax(0,1fr) 340px;gap:22px;padding:20px 0 38px}.browse-panel,.latest-panel,.hub-side .side-box{padding:18px}.browse-panel a{display:grid;grid-template-columns:26px minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}.topic-clusters{margin-top:18px}.topic-clusters a,.side-box>a,.link-list>a{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid var(--line)}.panel-head{display:flex;justify-content:space-between;gap:12px;align-items:center}.filters{display:flex;gap:8px;flex-wrap:wrap}.guide-list{display:grid;gap:8px}.guide-row{display:grid;grid-template-columns:72px minmax(0,1fr) 120px 26px;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:7px;padding:14px}.guide-row:hover{border-color:var(--orange);text-decoration:none}.row-icon{width:58px;height:58px;display:grid;place-items:center;background:var(--steel);color:var(--accent);border-radius:6px}.row-label{display:inline-block;color:var(--orange);font-size:.78rem;text-transform:uppercase;font-weight:950}.row-main strong,.row-main span{display:block}.row-main>span:not(.row-label):not(.tag-row){color:var(--muted)}.row-date{display:grid;gap:4px;text-align:right;color:#46525d}.side-box+.side-box,.hub-side .signup-panel{margin-top:14px}.popular-list{padding-left:0;list-style:none}.popular-list a{display:flex;justify-content:space-between;padding:7px 0}.value-strip .af-shell{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;padding:18px 0}.value-strip span{display:flex;align-items:center;justify-content:center;gap:10px}.breadcrumbs{border-bottom:1px solid var(--line);background:#fff}.breadcrumbs ol{width:min(var(--shell),calc(100% - 48px));margin:0 auto;padding:10px 0;display:flex;gap:12px;list-style:none;flex-wrap:wrap}.breadcrumbs li+li:before{content:"/";margin-right:12px;color:var(--muted)}.article-layout{display:grid;grid-template-columns:230px minmax(0,760px) 360px;gap:36px;align-items:start;padding:28px 0 58px}.toc,.article-side,.sticky{position:sticky;top:92px}.toc a{display:block;padding:8px 0;border-left:2px solid var(--line);padding-left:12px}.toc a:hover{border-color:var(--orange);text-decoration:none}.article-head h1{font-size:3.4rem}.article-meta{display:flex;gap:14px;flex-wrap:wrap;color:#3e4a55;font-size:.9rem}.answer-callout{display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;border:1px solid #d6c8aa;background:#fffaf0;padding:20px;margin:24px 0}.field-solution{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;align-items:start;border:1px solid var(--line);border-left:3px solid var(--orange);background:#fff;padding:13px 16px;margin:18px 0;border-radius:6px}.field-solution .icon{width:20px;height:20px;color:var(--orange)}.field-solution .eyebrow{margin-bottom:3px}.field-solution p:last-child{margin:0}.field-solution a{color:var(--navy);font-weight:800}.gloss-index{display:flex;flex-wrap:wrap;gap:6px;margin:18px 0 8px;position:sticky;top:78px;background:var(--paper);padding:8px 0;z-index:5}.gloss-index a{display:inline-flex;min-width:30px;justify-content:center;border:1px solid var(--line);background:#fff;border-radius:5px;padding:4px 8px;font-weight:900;color:var(--navy)}.gloss-index a:hover{border-color:var(--orange);text-decoration:none}.gloss-letter{padding-top:14px}.gloss-letter>h2{color:var(--orange);border-bottom:2px solid var(--line);padding-bottom:4px}.gloss-list{display:grid;gap:0}.gloss-item{display:grid;grid-template-columns:minmax(0,220px) minmax(0,1fr);gap:18px;padding:12px 0;border-bottom:1px solid var(--line)}.gloss-item dt{font-weight:900}.gloss-item dd{margin:0;color:var(--ink)}.gloss-refs{display:block;margin-top:5px;font-size:.86rem;color:var(--muted)}.gloss-refs a{color:var(--navy);font-weight:700;margin-right:10px}@media (max-width:720px){.gloss-item{grid-template-columns:1fr;gap:4px}}.quiz-form{display:grid;gap:14px;margin:18px 0}.quiz-q{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:16px;margin:0}.quiz-q legend{font-weight:900;padding:0 6px}.quiz-opt{display:grid;grid-template-columns:22px minmax(0,1fr);gap:10px;align-items:start;padding:8px 0;cursor:pointer}.quiz-opt input{margin-top:3px}.quiz-warn{color:var(--orange-dark);font-weight:800;min-height:1.2em}.quiz-result{border:1px solid var(--line);border-left:4px solid var(--orange);background:#fff;border-radius:var(--radius);padding:20px;margin-top:20px}.quiz-result>h2{margin-top:0}.quiz-score{color:var(--muted)}.quiz-advice{font-weight:700}.quiz-cta{margin:16px 0}.quiz-email-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:end;margin-top:14px;max-width:520px}.quiz-email-form label{grid-column:1 / -1;font-weight:850;font-size:.9rem}.quiz-email-form input{min-height:44px;border:1px solid var(--line-strong);border-radius:6px;padding:0 12px}@media (max-width:560px){.quiz-email-form{grid-template-columns:1fr}}.calc-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}.calc-field{display:grid;gap:5px}.calc-field label{font-weight:850;font-size:.9rem}.calc-field input,.calc-field select{min-height:44px;border:1px solid var(--line-strong);border-radius:6px;padding:0 12px;background:#fff}.calc-big{font-size:1.15rem}@media (max-width:560px){.calc-form{grid-template-columns:1fr}}.answer-callout .icon{width:36px;height:36px;color:var(--green)}.article-main{font-size:1.04rem}.article-main.narrow{max-width:780px}.article-section{padding-top:18px}.article-section h2{margin-top:14px}.formula-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.formula{border:1px solid var(--line);background:#fff;padding:14px}.formula code{display:block;margin-top:8px;font-size:1.1rem;color:var(--navy);white-space:normal}.term-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);background:#fff}.term-list div{padding:10px;border-right:1px solid var(--line)}.term-list dt{font-weight:900}.term-list dd{margin:0;color:var(--muted)}.table-wrap{overflow:auto;border:1px solid var(--line);background:#fff}.article-section table{width:100%;border-collapse:collapse}.article-section th,.article-section td{padding:10px;border-bottom:1px solid var(--line);text-align:left}.article-section th{background:var(--navy);color:#fff}.checklist{display:grid;gap:8px;list-style:none;padding:0}.checklist li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:10px;background:#fff;border:1px solid var(--line);padding:10px}.checklist .icon{color:var(--green)}.field-tool-callout,.glance{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-top:18px}.glance h2{background:var(--navy);color:#fff;margin:-16px -16px 14px;padding:12px 16px;border-radius:7px 7px 0 0}.glance dl{display:grid;gap:14px}.glance dl div{display:grid;grid-template-columns:30px minmax(0,1fr);gap:10px}.glance dt{font-weight:950}.glance dd{grid-column:2;margin:0;color:var(--muted)}.faq-list details{background:#fff;border:1px solid var(--line);border-radius:6px;padding:12px 14px}.faq-list details+details{margin-top:8px}.faq-list summary{font-weight:900;cursor:pointer}.related-list{display:grid;gap:8px}.blog-hero{padding:44px 0}.blog-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr)) 360px;gap:18px;padding-bottom:50px}.post-card{display:block;padding:22px}.blog-post{padding:30px 0 60px}.tool-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.tool-card{display:grid;gap:7px;padding:16px}.mt{margin-top:30px}.trade-hero{display:grid;grid-template-columns:90px minmax(0,1fr);gap:20px;align-items:center;padding:38px 0}.trade-hero-icon{width:72px;height:72px;color:var(--accent)}.trade-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px;padding-bottom:54px}.af-footer{border-top:1px solid var(--line);background:#fff;color:var(--muted);padding:26px 0}.footer-grid{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}.footer-grid a{margin-left:16px;color:var(--navy);font-weight:850}.not-found{padding:70px 0;min-height:60vh}@media (max-width:1180px){.af-nav{grid-template-columns:1fr;gap:10px;padding:14px 0}.nav-links{flex-wrap:wrap}.nav-links a{padding:4px 0}.nav-search{width:100%}.hero-main,.editor-grid,.hub-layout,.article-layout,.blog-grid{grid-template-columns:1fr}.signup-panel{border-left:0}.toc,.article-side,.sticky{position:static}.trade-tabs{grid-template-columns:repeat(4,minmax(0,1fr))}.rail-grid,.value-strip .af-shell{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){.af-shell,.breadcrumbs ol{width:min(100% - 28px,var(--shell))}.brand{font-size:2rem}h1,.hub-hero h1,.article-head h1{font-size:2.45rem;line-height:1}.lead{font-size:1.04rem}.hero-copy{padding:34px 0}.hero-visual{min-height:350px}.trade-tabs,.card-grid,.topic-grid,.rail-grid,.value-strip .af-shell,.formula-grid,.term-list,.tool-card-grid,.trade-layout,.hub-hero{grid-template-columns:1fr}.big-search{grid-template-columns:28px minmax(0,1fr);padding:10px}.big-search .button{grid-column:1 / -1}.guide-row{grid-template-columns:52px minmax(0,1fr)}.row-icon{width:46px;height:46px}.row-date,.row-arrow{display:none}.article-layout{gap:18px}.article-meta{display:grid}.footer-grid{display:grid}.footer-grid a{margin-left:0;margin-right:12px}}
.rail-grid .topic-tile{display:grid;grid-template-columns:1fr;justify-content:start;align-content:start;gap:6px;min-width:0}
.rail-grid .topic-tile span{min-width:0;overflow-wrap:anywhere}
@media (max-width:1180px){.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:720px){.topic-grid{grid-template-columns:1fr}}

/* ---- Nav rebuild (overrides flat nav) ---- */
.af-nav{display:flex;align-items:center;gap:20px;min-height:70px}
.nav-cb{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.nav-burger{display:none;align-items:center;justify-content:center;width:46px;height:46px;border:1px solid var(--line-strong);border-radius:8px;background:#fff;cursor:pointer;margin-left:auto}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a,.nav-dd>summary{font-weight:820;text-transform:uppercase;font-size:.82rem;letter-spacing:.01em;color:var(--ink)}
.nav-top{display:inline-flex;align-items:center;padding:10px 12px;border-radius:7px;border-bottom:0}
.nav-top:hover{background:var(--steel);text-decoration:none}
.nav-top.active{color:var(--orange-dark)}
.nav-dd{position:relative}
.nav-dd>summary{list-style:none;cursor:pointer;display:inline-flex;align-items:center;gap:7px;padding:10px 12px;border-radius:7px}
.nav-dd>summary::-webkit-details-marker{display:none}
.nav-dd>summary::after{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.55}
.nav-dd[open]>summary::after{transform:rotate(225deg) translateY(0)}
.nav-dd>summary:hover{background:var(--steel)}
.nav-dd[open]>summary{color:var(--orange-dark)}
.nav-panel{position:absolute;top:calc(100% + 8px);left:0;z-index:40;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:14px}
.nav-drop{display:grid;min-width:220px;gap:2px}
.nav-drop a{display:block;padding:10px 12px;border-radius:7px;text-transform:none;font-weight:700;font-size:.95rem}
.nav-drop a:hover{background:var(--steel);text-decoration:none}
.nav-mega{width:min(760px,calc(100vw - 48px))}
.nav-mega-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.nav-trade{display:flex;align-items:center;gap:11px;padding:11px;border-radius:10px;border:1px solid var(--line);background:#fff}
.nav-trade:hover{border-color:var(--accent);box-shadow:0 6px 18px rgba(18,22,28,.08);text-decoration:none}
.nav-trade-ic{width:38px;height:38px;flex:0 0 auto;display:grid;place-items:center;border-radius:9px;background:var(--steel);color:var(--accent)}
.nav-trade-ic .icon{width:22px;height:22px}
.nav-trade-tx{min-width:0;text-transform:none}
.nav-trade-tx strong{display:block;font-size:.95rem;font-weight:850;color:var(--ink)}
.nav-trade-tx small{display:block;color:var(--muted);font-size:.78rem}
.nav-mega-all{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:10px 12px;border-radius:8px;background:var(--steel);font-weight:850;text-transform:none;color:var(--navy)}
.nav-mega-all:hover{text-decoration:none;background:#e3eaea}
.nav-search{margin-left:auto}
.nav-button{white-space:nowrap}
@media (max-width:1180px){
  .af-nav{flex-wrap:wrap;gap:12px;padding:12px 0}
  .nav-burger{display:inline-flex;order:3}
  .brand{margin-right:auto}
  .nav-button{order:2}
  .nav-search{display:none;order:5;flex:1 0 100%;width:100%;box-sizing:border-box;margin-left:0}
  .nav-cb:checked ~ .nav-search{display:grid}
  .nav-links{order:4;display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;border-top:1px solid var(--line);padding-top:10px}
  .nav-cb:checked ~ .nav-links{display:flex}
  .nav-dd,.nav-top{width:100%}
  .nav-dd>summary,.nav-top{padding:13px 10px;font-size:.95rem}
  .nav-panel{position:static;box-shadow:none;border:0;border-radius:0;padding:4px 0 8px 12px;background:transparent}
  .nav-mega,.nav-drop{width:auto;min-width:0}
  .nav-mega-grid{grid-template-columns:1fr 1fr;gap:6px}
}
@media (max-width:560px){.nav-mega-grid{grid-template-columns:1fr}}
/* ---- FieldOS product home ---- */
.fos-hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(228,61,18,.10),transparent 60%),linear-gradient(180deg,#0c1c28,#0a1620);color:#fff;border-bottom:1px solid var(--line)}
.fos-hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:42px;align-items:center;padding:60px 0}
.fos-hero-copy h1{font-size:3.5rem;line-height:1.02;color:#fff}
.fos-hero .eyebrow{color:#ff8b61}
.fos-hero .lead{color:#cfe0ea}
.fos-hero-note{color:#9fb4c2;font-size:.92rem;margin-top:16px}
.fos-hero-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:26px;backdrop-filter:blur(6px)}
.fos-flow{display:flex;flex-wrap:wrap;align-items:center;gap:10px;justify-content:center}
.fos-flow span{display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:13px 16px;font-weight:800;color:#fff}
.fos-flow span .icon{color:#ff8b61}
.fos-flow i{color:#5f7686;display:inline-flex}
.fos-feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px}
.fos-feature{display:grid;grid-template-columns:46px minmax(0,1fr);gap:15px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.fos-feature-ic{width:46px;height:46px;display:grid;place-items:center;border-radius:11px;background:var(--steel);color:var(--orange)}
.fos-feature h3{margin-bottom:6px}
.fos-feature p{margin:0;color:var(--muted)}
.fos-roles-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.fos-role-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}
.fos-role{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:20px}
.fos-role strong{display:block;margin-bottom:7px;font-size:1.05rem}
.fos-role p{margin:0;color:var(--muted)}
.fos-cta{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.8fr);gap:32px;align-items:center}
@media (max-width:900px){.fos-hero-grid,.fos-feature-grid,.fos-role-grid,.fos-cta{grid-template-columns:1fr}.fos-hero-copy h1{font-size:2.6rem}}
/* ---- Trust page ---- */
.trust-hero{background:radial-gradient(900px 380px at 15% -20%,rgba(8,63,102,.14),transparent 60%),var(--steel);border-bottom:1px solid var(--line);padding:52px 0}
.trust-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.trust-card{display:grid;grid-template-columns:44px minmax(0,1fr);gap:15px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}
.trust-ic{width:44px;height:44px;display:grid;place-items:center;border-radius:11px;background:var(--steel);color:var(--navy)}
.trust-card h3{margin-bottom:6px}
.trust-card p{margin:0;color:var(--muted)}
.trust-foot{margin-top:20px;color:var(--muted)}
.trust-foot a{color:var(--navy);font-weight:800}
@media (max-width:760px){.trust-grid{grid-template-columns:1fr}}

/* Start & Scale book toolkits */
.tk-hero{background:#fff;border-bottom:1px solid var(--line)}
.tk-hero .af-shell{padding:40px 0 30px}
.tk-hero h1{font-size:3.2rem;max-width:18ch}
.tk-hero .lead{margin-top:6px}
.tk-from-book{margin-top:14px;color:var(--muted);font-size:.95rem}
.tk-from-book strong{color:var(--ink)}
.tk-layout{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:32px;align-items:start;padding:30px 0 56px}
.tk-get{display:grid;gap:8px;list-style:none;padding:0;margin:0 0 26px}
.tk-get li{display:grid;grid-template-columns:24px minmax(0,1fr);gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}
.tk-get .icon{color:var(--green)}
.tk-section{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:22px}
.tk-section>h2{margin-top:0;font-size:1.5rem}
.tk-section .muted{color:var(--muted)}
.tk-calc{display:grid;gap:14px}
.tk-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.tk-field{display:grid;gap:5px}
.tk-field label{font-weight:850;font-size:.9rem}
.tk-field input,.tk-field select{min-height:44px;border:1px solid var(--line-strong);border-radius:6px;padding:0 11px;background:#fff;color:var(--ink)}
.tk-field .hint{color:var(--muted);font-size:.82rem}
.tk-presets{display:flex;flex-wrap:wrap;gap:8px}
.tk-preset{min-height:36px;border:1px solid var(--line-strong);background:#fff;border-radius:6px;padding:0 12px;font-weight:800;cursor:pointer}
.tk-preset:hover{border-color:var(--orange);color:var(--orange-dark)}
.tk-result{border-left:5px solid var(--orange);background:linear-gradient(135deg,#123246,#0d202c);color:#fff;border-radius:6px;padding:18px 20px}
.tk-result .tk-price{font-size:2.6rem;font-weight:950;line-height:1}
.tk-result .tk-explain{color:#e0edf2;margin:8px 0 0;font-size:.96rem}
.tk-downloads{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.tk-dl{display:grid;grid-template-columns:38px minmax(0,1fr);gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;color:var(--ink)}
.tk-dl:hover{border-color:var(--orange);text-decoration:none}
.tk-dl .icon{width:30px;height:30px;color:var(--navy)}
.tk-dl strong{display:block}
.tk-dl small{color:var(--muted)}
.tk-review-cta{background:#fffaf0;border:1px solid #d6c8aa;border-radius:var(--radius);padding:20px}
.tk-review-cta h2{margin-top:0}
.tk-band{background:#0d202c;color:#fff;border-bottom:1px solid var(--line)}
.tk-band .af-shell{padding:34px 0}
.tk-band .eyebrow{color:#ff8b61}
.tk-band h2{font-size:1.9rem;margin:0 0 6px;color:#fff}
.tk-band p{color:#cfe0e8;max-width:70ch}
.tk-band-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:18px}
.tk-band-card{display:block;background:#11314a;border:1px solid #1f4a63;border-radius:var(--radius);padding:16px;color:#fff}
.tk-band-card:hover{border-color:var(--orange);text-decoration:none}
.tk-band-card strong{display:block;font-size:1.12rem}
.tk-band-card small{color:#bcd2dd}
.tk-band-card .tk-go{display:inline-flex;align-items:center;gap:7px;margin-top:10px;color:#ff8b61;font-weight:850}
.tk-band-foot{margin-top:16px;color:#cfe0e8}
.tk-band-foot a{color:#ff8b61;font-weight:850;text-decoration:underline}
.tk-hub-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding:24px 0 50px}
.tk-hub-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;color:var(--ink)}
.tk-hub-card:hover{border-color:var(--orange);text-decoration:none}
.tk-hub-card .eyebrow{margin-bottom:4px}
.tk-hub-card ul{margin:10px 0 0;padding-left:18px;color:var(--muted)}
.tk-note{background:var(--steel);border-radius:6px;padding:12px 14px;color:#26333b;font-size:.92rem}
/* printable utility pages */
.print-bar{position:sticky;top:0;z-index:5;background:#0d202c;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px}
.print-bar a{color:#ff8b61;font-weight:850}
.print-btn{min-height:42px;border:1px solid #ff8b61;background:#ff6b2c;color:#fff;border-radius:6px;padding:0 16px;font-weight:900;cursor:pointer}
.sheet{max-width:820px;margin:24px auto;background:#fff;border:1px solid var(--line);border-radius:8px;padding:40px 46px}
.sheet h1{font-size:2rem;line-height:1.05}
.sheet h2{font-size:1.25rem;margin-top:26px}
.sheet .field-line{margin:6px 0;font-size:1rem}
.sheet .clause{margin:14px 0}
.sheet .clause h3{font-size:1.02rem;margin:0 0 4px}
.sheet .sig{margin-top:30px;border-top:1px solid var(--line);padding-top:18px;font-size:1rem}
.sheet ul.tasks{list-style:none;padding:0;display:grid;gap:7px}
.sheet ul.tasks li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:10px;align-items:start}
.sheet ul.tasks li:before{content:"";display:inline-block;width:16px;height:16px;margin-top:3px;border:2px solid var(--ink);border-radius:3px}
.sheet .script{border:1px solid var(--line);border-radius:6px;padding:14px;margin:12px 0;background:#fbfaf6}
.sheet .script .when{color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;font-weight:850}
.sheet .script p{margin:6px 0 0;white-space:pre-wrap}
.card-hanger,.qr-card{border:2px dashed #8a969c;border-radius:10px;padding:22px;margin:16px 0}
.qr-card{display:grid;grid-template-columns:200px minmax(0,1fr);gap:22px;align-items:center}
.qr-box{width:200px;height:200px;display:grid;place-items:center;border:1px solid var(--line);background:#fff}
.qr-box svg{width:100%;height:100%}
.qr-gen{display:grid;gap:8px;margin:14px 0}
.qr-gen input{min-height:44px;border:1px solid var(--line-strong);border-radius:6px;padding:0 11px}
@media(max-width:760px){.tk-layout,.tk-fields,.tk-downloads,.tk-band-cards,.tk-hub-grid,.qr-card{grid-template-columns:1fr}.tk-hero h1{font-size:2.3rem}.sheet{padding:24px 20px;margin:12px}}
@media print{.print-bar,.af-header,.af-footer,.tk-actions-noprint{display:none!important}.sheet{border:0;margin:0;max-width:none;padding:0}body{background:#fff}}

/* =====================================================================
   ANVILFIELD POLISH LAYER  (POLISH_CSS)
   Appended LAST in scripts/build_anvilfield_site.py — after css(),
   RESPONSIVE_CSS_FIXES, NAV_CSS and btk.TOOLKIT_CSS — so every rule here
   wins by source order at equal specificity. Overrides only: nothing is
   removed, no privacy/subapps/api surfaces are touched.

   ONE spacing scale (8px base) + ONE fluid type scale (clamp()) applied
   consistently. No !important is used anywhere in this block.
   ===================================================================== */

/* ---------------------------------------------------------------- tokens */
:root{
  /* 8px spacing scale */
  --space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;
  --space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;
  /* radius scale (base --radius:8px is left intact so existing cards stay) */
  --radius-sm:6px;--radius-lg:14px;--radius-pill:999px;
  /* layered shadow scale */
  --shadow-sm:0 1px 2px rgba(18,22,28,.06),0 2px 6px rgba(18,22,28,.07);
  --shadow-md:0 6px 18px rgba(18,22,28,.08),0 12px 28px rgba(18,22,28,.08);
  --shadow-lg:0 22px 55px rgba(18,22,28,.12);
  /* retire the single hero-weight shadow: default is now the lighter md.
     Instantly de-smudges .nav-panel and .direct-answer which use var(--shadow). */
  --shadow:var(--shadow-md);
  /* one fluid band rhythm reused by every top-level section */
  --band:clamp(40px,5vw,72px);
}

/* ------------------------------------------------------ fluid type scale */
/* Display / headings — fluid clamps remove every tablet "size cliff". */
h1{font-size:clamp(2.4rem,1.5rem + 3.4vw,4.4rem);line-height:1.02;letter-spacing:-.02em;margin-bottom:var(--space-4)}
h2{font-size:clamp(1.5rem,1.3rem + .8vw,1.9rem);line-height:1.18;letter-spacing:-.01em;margin-bottom:var(--space-2)}
h3{font-size:clamp(1.05rem,1rem + .25vw,1.25rem);line-height:1.3;letter-spacing:-.005em}
.lead{font-size:clamp(1.05rem,.98rem + .35vw,1.2rem);line-height:1.55;max-width:68ch}

/* Brand wordmark — one clamp replaces the 2.45rem→2rem hard jump. */
.brand{font-size:clamp(1.5rem,1rem + 2.4vw,2.45rem);line-height:1;letter-spacing:-.01em}

/* Eyebrow + primary button — WCAG AA contrast on light surfaces.
   #e43d12 on white is 4.22:1 (fails). orange-dark = 6.87:1, #cf3a10 = 4.93:1.
   Dark-section eyebrows keep #ff8b61 via their higher-specificity rules. */
.eyebrow{color:var(--orange-dark);letter-spacing:.1em;margin-bottom:var(--space-2)}
/* same 4.22:1 fail as .eyebrow — route the orange row label through orange-dark too. */
.row-label{color:var(--orange-dark)}
.button{background:#cf3a10;border-color:#cf3a10;border-radius:var(--radius-sm)}

/* Per-surface hero headlines — all fluid, all on the same scale. */
.home-hero h1{font-size:clamp(2.6rem,1.55rem + 3.4vw,4.6rem);line-height:.98;letter-spacing:-.015em;margin-bottom:var(--space-4)}
.home-hero .lead{margin-top:0;margin-bottom:0}
.hub-hero h1{font-size:clamp(2.4rem,1.6rem + 3.2vw,4.2rem);line-height:1.04;letter-spacing:-.02em}
.fos-hero-copy h1{font-size:clamp(2.3rem,1.55rem + 3vw,3.6rem);line-height:1.03;letter-spacing:-.01em}
.trust-hero h1{font-size:clamp(2rem,1.3rem + 2.8vw,3.5rem);line-height:1.05;letter-spacing:-.01em;max-width:22ch;margin-bottom:var(--space-3)}
.trade-hero h1{font-size:clamp(2rem,1.3rem + 2.4vw,3.4rem);line-height:1.06;letter-spacing:-.01em;margin-bottom:var(--space-2)}
.article-head h1{font-size:clamp(2rem,1.3rem + 2.6vw,3.4rem);line-height:1.06;letter-spacing:-.01em;margin:0 0 var(--space-3)}
body .tk-hero h1{font-size:clamp(2.1rem,1.5rem + 2.6vw,3.2rem);line-height:1.06;letter-spacing:-.01em}

/* ------------------------------------------------------- spacing+rhythm */
/* One fluid vertical rhythm for every top-level band. */
.section{padding:var(--band) 0}
.fos-hero-grid{padding:var(--band) 0}
.trust-hero{padding:var(--band) 0}
body .tk-band .af-shell{padding:var(--band) 0}

/* Heading→content gaps on the 8px scale (kill stacked UA margins). */
#how h2,.fos-roles-band h2{margin-bottom:0}
.fos-feature-grid,.fos-role-grid{margin-top:clamp(24px,3vw,32px)}
.fos-cta h2,.editor-grid h2{margin-bottom:var(--space-2)}
#about h2{margin-bottom:var(--space-3)}

/* Unified column gutters per visual tier. */
.fos-hero-grid,.fos-cta{gap:clamp(28px,4vw,48px)}
.editor-grid,.hub-layout,.trade-layout{gap:clamp(20px,2.5vw,32px)}
.action-row{gap:var(--space-4);margin-top:var(--space-5)}

/* Card-tier grids all share the 16px gutter. */
.topic-grid{gap:var(--space-4)}
.value-strip .af-shell{gap:var(--space-4)}
body .tk-band-cards{gap:var(--space-4);margin-top:var(--space-4)}

/* tk-band internal rhythm: drop stacked paragraph margin, even 16px gaps. */
body .tk-band p{margin-bottom:0}
body .tk-band-foot{margin-top:var(--space-4)}

/* Footer rhythm on-scale. */
.af-footer{padding:var(--space-6) 0}

/* --------------------------------------------------------- header + nav */
/* Specificity fix: stray flat-nav rule `.nav-links a{padding:25px 0 22px}`
   (0,1,1) was beating the rebuilt component rules (0,1,0). Bump to (0,2,1)/
   (0,2,0) so the intended padding + no-underline wins at every width. */
.nav-links a.nav-top{padding:10px 12px;border-bottom:0}
.nav-links a.nav-trade{padding:11px;border-bottom:0;text-transform:none}
.nav-links a.nav-mega-all{padding:10px 12px;border-bottom:0;margin-top:var(--space-3);text-transform:none;font-size:.92rem}
.nav-drop a{border-bottom:0}

/* Active top-level indicator: a layout-neutral 2px inset underline. */
.nav-links a.nav-top.active{color:var(--orange-dark);box-shadow:inset 0 -2px 0 var(--orange)}

/* Caret jitter fix: position the chevron in screen space (constant in both
   states) and animate rotation only — no translateY-inside-rotation snap. */
.nav-dd>summary::after{transform:rotate(45deg);position:relative;top:-1px;transition:transform .2s ease}
.nav-dd[open]>summary::after{transform:rotate(225deg)}

/* Floating menu gets crisp md elevation + radius scale (was hero-weight). */
.nav-panel{box-shadow:var(--shadow-md);border-radius:var(--radius-lg)}

/* Right-side controls: equal 44px height, balanced search footprint. */
.nav-search{min-height:44px;width:240px;max-width:26vw}

@media (max-width:1180px){
  /* brand already owns margin-right:auto — drop burger's opposing auto so
     the CTA + burger group on the right instead of floating mid-bar. */
  .nav-burger{margin-left:0}
  /* re-assert drawer tap targets (the (0,2,1) desktop rule above would
     otherwise leak its 10px padding into the drawer). */
  .nav-links a.nav-top{padding:13px 10px}
  /* FW-123: full-width search in the mobile drawer (overrides the base 240px/26vw
     footprint so the mobile-majority field audience actually gets search). */
  .nav-search{width:100%;max-width:none;flex:1 0 100%;box-sizing:border-box;margin-left:0}
}
@media (max-width:560px){
  /* 360px top bar must fit one line: compact text-only CTA. */
  .af-nav{gap:var(--space-2)}
  .nav-button{padding:0 12px;font-size:.85rem;min-height:44px}
  .nav-button .button-icon{display:none}
}

/* ------------------------------------------------------------------ home */
@media (min-width:1181px){
  /* rebalance hero mass toward copy, tighten the visual column + signup. */
  .hero-main{grid-template-columns:minmax(0,1.1fr) minmax(0,.85fr) 360px;gap:40px;min-height:540px}
  /* shared top rhythm so the three columns read as one band. */
  .hero-copy{padding:56px var(--space-2) 56px 0}
  .signup-panel{padding:48px 30px}
  .hero-visual{padding:44px 28px}
}

/* Center the dark signup content so there is no empty slab at the bottom. */
.hero-main .signup-panel{display:flex;flex-direction:column;justify-content:center}
.signup-panel form{gap:var(--space-3);margin-top:var(--space-4)}
.signup-panel input,.signup-panel select{min-height:44px;border-radius:var(--radius-sm)}
.signup-panel .form-note{margin-top:14px;margin-bottom:0}

/* Hero visual: stop the mini-table overflowing the narrow column. */
.mini-table{width:min(260px,100%)}
.equation{font-size:1.1rem;line-height:1.55}
.equation span{margin-left:var(--space-4)}

/* Direct-answer card: 8px-scale spacing + card radius. */
.direct-answer{margin:var(--space-5) 0 0;padding:var(--space-5) var(--space-5);border-radius:var(--radius)}

/* Trade tab strip: breathing room below + denser on mobile. */
.trade-band .af-shell{padding-bottom:var(--space-2)}
.trade-band-head{padding:20px 0 var(--space-4)}
@media (max-width:720px){
  .trade-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .trade-tab{min-height:64px;font-size:.92rem}
  .section{padding:var(--space-6) 0}
}

/* About section: two-column story + principles list. */
.about-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(28px,4vw,56px);align-items:start}
.about-copy .lead{margin-bottom:var(--space-4)}
.about-values{list-style:none;margin:0;padding:0;display:grid;gap:var(--space-3)}
.about-values li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:var(--space-4);background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);box-shadow:var(--shadow-sm)}
.about-val-ic{width:44px;height:44px;display:grid;place-items:center;border-radius:var(--radius-sm);background:var(--steel);color:var(--orange)}
.about-values strong{display:block;margin-bottom:2px}
.about-values p{margin:0;color:var(--muted)}
@media (max-width:860px){.about-grid{grid-template-columns:1fr;gap:var(--space-6)}}

/* Homepage: "Start here" 3-audience router + hero featured-answer link. */
.start-here h2{margin-bottom:var(--space-4)}
.start-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4)}
.start-card{display:grid;gap:var(--space-2);align-content:start;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-5);color:var(--ink);box-shadow:var(--shadow-sm)}
.start-card:hover{border-color:var(--orange);text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-md);transition:transform .15s ease,box-shadow .15s ease}
.start-card>.icon{width:34px;height:34px;color:var(--orange)}
.start-card strong{font-size:1.15rem}
.start-card span{color:var(--muted)}
.start-card .start-go{color:var(--navy);font-weight:800;display:inline-flex;align-items:center;gap:6px;margin-top:var(--space-1)}
.start-card-fos{background:linear-gradient(180deg,color-mix(in srgb,var(--orange) 6%,#fff),#fff);border-color:color-mix(in srgb,var(--orange) 30%,var(--line))}
.start-card-fos>.icon{color:var(--orange-dark)}
.hero-answer-link{color:#ffd9c9;margin-top:var(--space-2)}
.hero-answer-link:hover{color:#fff}
@media (max-width:860px){.start-cards{grid-template-columns:1fr}}

/* Product status badges + products line. */
.badge-soon,.badge-live{display:inline-block;font-size:.66rem;font-weight:900;letter-spacing:.04em;text-transform:uppercase;padding:2px 7px;border-radius:var(--radius-pill);vertical-align:middle;margin-left:6px}
.badge-soon{background:color-mix(in srgb,var(--navy) 12%,#fff);color:var(--navy);border:1px solid color-mix(in srgb,var(--navy) 28%,var(--line))}
.badge-live{background:color-mix(in srgb,var(--green) 14%,#fff);color:var(--green);border:1px solid color-mix(in srgb,var(--green) 32%,var(--line))}
.fos-hero .badge-soon{background:rgba(255,255,255,.14);color:#ffd9c9;border-color:rgba(255,255,255,.24);margin-left:0;margin-right:8px}
.nav-drop a small{color:var(--muted);font-weight:600}

/* --------------------------------------------------------------- fieldos */
/* GLITCH FIX: the Capture→Prove→Send→Get-paid flow wrapped and orphaned
   right-arrows. Make it a clean vertical pipeline with down-rotated arrows. */
.fos-flow{flex-direction:column;flex-wrap:nowrap;align-items:center;gap:10px}
.fos-flow span{width:100%;justify-content:center}
.fos-flow i{transform:rotate(90deg);margin:var(--space-1) 0}
.fos-flow i .icon{width:20px;height:20px}

/* Dark→paper hero seam: drop the near-white hairline on the dark hero. */
.fos-hero{border-bottom:0}

/* Embedded newsletter reads as a finished rounded card, not a sharp slab. */
.fos-cta .signup-panel{border:1px solid rgba(255,255,255,.12);border-radius:16px;box-shadow:var(--shadow);overflow:hidden}
/* Top-align the CTA copy with the taller newsletter panel. */
.fos-cta{align-items:start}

/* Keep the feature grid 2-up through tablet, stack only on real phones. */
@media (max-width:900px){.fos-feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.fos-feature-grid{grid-template-columns:1fr}}

/* ----------------------------------------------------------------- trust */
.trust-hero .eyebrow{margin-bottom:var(--space-2)}
.trust-hero .lead{max-width:62ch}
/* Subtle navy depth behind the white cards; :has() is progressive — the
   plain .section padding stays as the fallback. */
.section:has(.trust-grid){padding:clamp(48px,5vw,72px) 0;background:radial-gradient(1100px 520px at 88% 118%,rgba(8,63,102,.06),transparent 60%)}
.trust-card{grid-template-columns:48px minmax(0,1fr);gap:var(--space-4);padding:var(--space-5);border-radius:var(--radius-lg);align-items:start;box-shadow:var(--shadow-sm)}
.trust-ic{width:48px;height:48px;border-radius:var(--radius-sm)}
.trust-card h3{margin-bottom:var(--space-2);font-size:1.05rem;line-height:1.3}
.trust-card p{line-height:1.55}
.trust-foot{margin-top:var(--space-6);padding-top:20px;border-top:1px solid var(--line);font-size:.95rem}
@media (max-width:720px){
  /* match the trust band to the global 32px mobile section rhythm (the :has rule
     above is non-media and would otherwise hold a 48px floor only here). */
  .section:has(.trust-grid){padding:var(--space-6) 0}
}
@media (max-width:560px){
  .trust-card{padding:20px;grid-template-columns:44px minmax(0,1fr);gap:14px}
  .trust-ic{width:44px;height:44px}
}

/* ----------------------------------------------------------- trade world */
/* Each trade hub reads as its own destination: accent-tinted band + backdrop,
   driven by the per-trade --accent set inline on the hero. */
.trade-world-hero{border-bottom:1px solid var(--line);background-color:#fff;background-image:radial-gradient(900px 380px at 90% -35%,color-mix(in srgb,var(--accent) 18%,transparent),transparent 60%),linear-gradient(180deg,color-mix(in srgb,var(--accent) 7%,#fff),#fff)}
.trade-world-hero-inner{display:grid;grid-template-columns:88px minmax(0,1fr);gap:var(--space-5);align-items:center;padding:var(--band) 0}
.trade-world-ic{width:88px;height:88px;display:grid;place-items:center;border-radius:var(--radius-lg);background:color-mix(in srgb,var(--accent) 14%,#fff);color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 32%,var(--line))}
.trade-world-ic .icon{width:48px;height:48px}
.trade-world-copy h1{font-size:clamp(2rem,1.3rem + 2.6vw,3.4rem);line-height:1.06;letter-spacing:-.01em;margin:var(--space-1) 0 var(--space-3)}
.trade-world-copy .lead{margin:0}
.trade-world-stats{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-5);align-items:center;margin-top:var(--space-4)}
.trade-world-stats span{color:var(--muted)}
.trade-world-stats strong{color:var(--ink);font-size:1.15rem;margin-right:4px}
.trade-world-stats .text-link{margin-top:0;color:var(--accent)}
@media (max-width:680px){.trade-world-hero-inner{grid-template-columns:1fr;gap:var(--space-4)}.trade-world-ic{width:64px;height:64px}.trade-world-ic .icon{width:36px;height:36px}}

/* -------------------------------------------------------- trade+article */
/* Restore the 18px inset on bare .side-box (trade-hub aside, article rail). */
.side-box{padding:18px}
.side-box>a:last-child{border-bottom:0}
/* Even 16px rhythm between stacked rail cards (kills 2px touching borders). */
.article-side>*+*{margin-top:var(--space-4)}
.side-box>.signup-panel{margin-top:var(--space-4)}

/* Sticky rails must scroll internally instead of stranding their lower half. */
@media (min-width:1181px){
  .toc,.article-side{max-height:calc(100vh - 108px);overflow-y:auto;overscroll-behavior:contain;padding-right:var(--space-1)}
}

/* Hub hero: top-align the icon with the eyebrow, balanced padding. */
.trade-hero{align-items:start;padding:40px 0 var(--space-6)}
.trade-hero-icon{margin-top:2px}

/* Article header rhythm. */
.article-head .lead{margin:0 0 14px}
.article-meta{margin-bottom:var(--space-2)}
/* Single source of truth for inter-section spacing + tight heading→body. */
.article-section{padding-top:var(--space-6)}
.article-section h2{margin-top:0;margin-bottom:var(--space-2);line-height:1.18}
/* Cap reading measure (~72ch) without touching tables/formulas/term lists. */
.article-main p{max-width:72ch}

/* Three formulas on one even row; match the card radius. */
@media (min-width:721px){.formula-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.formula{border-radius:var(--radius)}
.formula code{font-size:1.05rem}

/* Term list: add the missing horizontal dividers, kill doubled borders. */
.term-list{border-bottom:0}
.term-list div{border-bottom:1px solid var(--line)}
.term-list div:nth-child(3n){border-right:0}
@media (max-width:720px){.term-list div{border-right:0}}

/* 2-child related-tool usages: collapse the unused chevron column. */
.related-tool{grid-template-columns:34px minmax(0,1fr)}

/* Guide list rows: top-align icon/date, add 4px internal rhythm. */
.guide-row{align-items:start}
.row-main{display:flex;flex-direction:column;gap:var(--space-1);min-width:0}
.row-icon{margin-top:2px}
.row-date{align-self:start}

/* FAQ: separate a revealed answer from its question. */
.faq-list details[open] summary{margin-bottom:var(--space-2)}
.faq-list details>p{margin-bottom:0}

/* Footer: constrain blurb, lay links out as an even wrapping flex row. */
.footer-grid{align-items:start}
.footer-grid p:first-child{max-width:46ch}
.footer-grid p:last-child{display:flex;flex-wrap:wrap;gap:10px 18px}
.footer-grid a{margin:0}

/* Hub search bar: nest the button inside the rounded container. */
.big-search{padding:var(--space-1) var(--space-1) var(--space-1) 18px}
.big-search .button{align-self:stretch;height:auto;border-radius:5px}

/* Center the 3-column article on ultrawide so it is not left-weighted. */
.article-layout{justify-content:center}

/* Data tables: consistent breathing room + rounded-card language. */
.table-wrap{margin:var(--space-4) 0;border-radius:var(--radius)}

/* ----------------------------------------------------------- calculators */
/* Per-field inline validation: the field that is wrong says so, in place. */
.calc-err{display:block;color:#cf3a10;font-size:.82rem;line-height:1.35;font-weight:700}
.calc-err:empty{display:none}
.calc-field.is-invalid input,.calc-field.is-invalid select{border-color:#cf3a10;box-shadow:0 0 0 3px rgba(207,58,16,.16)}
.calc-field input:focus,.calc-field select:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(8,63,102,.16)}
/* Generic summary line only shows when it has text; sits on the 8px scale. */
#calc-warn{margin:var(--space-3) 0 0}
#calc-warn:empty{display:none}
/* Result reads as a clear, well-spaced answer card right under the button. */
#calc-out{margin-top:var(--space-4)}
#calc-out .calc-big{font-size:clamp(1.3rem,1.1rem + .9vw,1.7rem);line-height:1.2;margin-bottom:var(--space-2)}
#calc-go{margin-top:var(--space-3)}

/* ---------------------------------------------------- article disclaimer */
.article-disclaimer{display:grid;grid-template-columns:24px minmax(0,1fr);gap:var(--space-3);align-items:start;margin-top:var(--space-6);padding:var(--space-4) var(--space-5);background:var(--steel);border:1px solid var(--line);border-left:3px solid var(--navy);border-radius:var(--radius)}
.article-disclaimer>.icon{width:22px;height:22px;color:var(--navy);margin-top:2px}
.article-disclaimer .eyebrow{color:var(--navy);margin-bottom:var(--space-1)}
.article-disclaimer p:last-child{margin:0;color:var(--muted);font-size:.95rem;line-height:1.55}
.article-disclaimer a{color:var(--navy);font-weight:800}

/* ------------------------------------------------- quizzes inline review */
.quiz-qnote{margin:var(--space-2) 0 0;font-weight:700;font-size:.85rem}
.quiz-qnote:empty{display:none}
.quiz-q.is-invalid{border-color:#cf3a10;box-shadow:0 0 0 3px rgba(207,58,16,.13)}
.quiz-q.is-invalid .quiz-qnote{color:#cf3a10}
.quiz-q.q-strong{border-left:3px solid var(--green)}
.quiz-q.q-strong .quiz-qnote{color:var(--green)}
.quiz-q.q-review{border-left:3px solid var(--orange)}
.quiz-q.q-review .quiz-qnote{color:var(--orange-dark)}
.quiz-opt{border-radius:var(--radius-sm);padding:8px 10px;margin:0 -10px}
.quiz-opt.opt-best{background:rgba(23,97,59,.10);box-shadow:inset 0 0 0 1px rgba(23,97,59,.30)}
.quiz-opt.opt-chosen{background:rgba(8,63,102,.06)}
.quiz-opt.opt-best.opt-chosen{background:rgba(23,97,59,.16)}

/* --------------------------------------------------------- sitemap footer */
.af-footer{padding:var(--space-7) 0 var(--space-5)}
.footer-cols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--space-5)}
.footer-logo{font-weight:950;font-size:1.5rem;letter-spacing:-.01em;color:#050608;display:inline-block;margin-bottom:var(--space-2)}
.footer-brand p{color:var(--muted);max-width:34ch;margin:0 0 var(--space-4)}
.footer-col h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.07em;color:var(--ink);margin:0 0 var(--space-3)}
.footer-col a{display:block;padding:5px 0;color:var(--muted);font-weight:600;margin:0}
.footer-col a:hover{color:var(--navy);text-decoration:none}
.footer-brand .button{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:var(--space-3);flex-wrap:wrap;align-items:center;margin-top:var(--space-6);padding-top:var(--space-4);border-top:1px solid var(--line);color:var(--muted);font-size:.86rem}
.footer-bottom a{color:var(--navy);font-weight:800}
@media (max-width:860px){.footer-cols{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1 / -1}}
@media (max-width:520px){.footer-cols{grid-template-columns:1fr}}

/* ------------------------------------------------ mid-article inline capture */
.inline-capture{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:var(--space-4);align-items:center;margin:var(--space-6) 0;padding:var(--space-4) var(--space-5);background:linear-gradient(180deg,color-mix(in srgb,var(--navy) 6%,#fff),#fff);border:1px solid var(--line);border-left:3px solid var(--navy);border-radius:var(--radius-lg)}
.inline-capture-copy{display:grid;grid-template-columns:26px minmax(0,1fr);gap:var(--space-3);align-items:start}
.inline-capture-copy>.icon{width:26px;height:26px;color:var(--navy);margin-top:2px}
.inline-capture-copy strong{display:block;font-size:1.02rem}
.inline-capture-copy span{color:var(--muted);font-size:.9rem;line-height:1.4}
.inline-capture-form{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr) auto;gap:var(--space-2)}
.inline-capture-form input,.inline-capture-form select{min-height:44px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);padding:0 12px;background:#fff;min-width:0}
.inline-capture-form input:focus,.inline-capture-form select:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(8,63,102,.16)}
.inline-capture-form .button{white-space:nowrap}
@media (max-width:780px){.inline-capture{grid-template-columns:1fr;gap:var(--space-3)}.inline-capture-form{grid-template-columns:1fr}}

/* --------------------------------------------- trade-grouped index pages */
.trade-group{margin-top:var(--space-7);scroll-margin-top:84px}
.trade-group .panel-head{align-items:center;border-bottom:1px solid var(--line);padding-bottom:var(--space-2);margin-bottom:var(--space-4)}
.trade-group h2{margin:0;font-size:clamp(1.3rem,1.2rem + .5vw,1.6rem)}
.trade-group h2 a{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.trade-group h2 a:hover{color:var(--accent);text-decoration:none}
.trade-group h2 .icon{width:24px;height:24px;color:var(--accent)}
.gloss-index span{color:var(--muted);font-weight:700;font-size:.78rem}

/* -------------------------------------------------- key takeaways (AEO) */
.key-takeaways{background:color-mix(in srgb,var(--orange) 5%,#fff);border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:var(--radius-lg);padding:var(--space-4) var(--space-5);margin:var(--space-5) 0}
.key-takeaways h2{font-size:1.1rem;margin:0 0 var(--space-2);line-height:1.2}
.key-takeaways ul{margin:0;padding-left:1.1rem;display:grid;gap:var(--space-2)}
.key-takeaways li{line-height:1.5}

/* ------------------------------------------------------ client-side search */
.search-hits{display:grid;gap:var(--space-2)}
.search-hit{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.search-hit:hover{border-color:var(--orange);text-decoration:none;box-shadow:var(--shadow-sm)}
.search-hit .row-label{display:inline-block;color:var(--orange-dark);font-size:.72rem;text-transform:uppercase;font-weight:950;letter-spacing:.04em}
.search-hit strong{display:block;margin:3px 0 2px;font-size:1.05rem}
.search-hit .d{color:var(--muted);font-size:.92rem;line-height:1.45}
#fg-results .panel-head{align-items:baseline;margin-bottom:var(--space-4)}

/* -------------------------------------------------------- app card badges */
.app-badges{justify-self:start;margin-top:var(--space-1);font-size:.72rem;font-weight:800;letter-spacing:.02em;color:var(--green);background:color-mix(in srgb,var(--green) 8%,#fff);border:1px solid color-mix(in srgb,var(--green) 24%,var(--line));border-radius:var(--radius-pill);padding:3px 10px}

/* ------------------------------------------------------------ responsive */
@media (max-width:720px){
  /* Tighter mobile section rhythm already set above (32px); keep leads readable. */
  .article-layout{gap:18px}
  /* restore symmetric mobile padding on the hub search (the desktop nested-button
     padding above is non-media and would otherwise leave 18px-left/4px-right). */
  .big-search{padding:10px}
}

/* FW-153: interactive field checklists — check off on the job, progress persists per device */
.ckwrap{margin:18px 0}
.ck-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px}
.ck-prog{font-weight:800;color:var(--navy);font-size:.92rem}
.ck-reset{min-height:32px;border:1px solid var(--line-strong);background:#fff;border-radius:6px;padding:0 12px;font-weight:800;font-size:.82rem;color:var(--ink);cursor:pointer}
.ck-reset:hover{border-color:var(--orange);color:var(--orange-dark)}
.checklist-live li{display:block;padding:0;border:1px solid var(--line);border-radius:6px;margin-bottom:6px;background:#fff}
.ck-item{display:grid;grid-template-columns:22px minmax(0,1fr);gap:12px;align-items:start;padding:11px 13px;cursor:pointer;margin:0}
.ck-box{width:20px;height:20px;margin:1px 0 0;accent-color:var(--green);cursor:pointer;flex:0 0 auto}
.ck-txt{transition:color .12s}
.ck-done{border-color:var(--green);background:#f3faf5}
.ck-done .ck-txt{text-decoration:line-through;color:var(--muted)}
.ck-fos{display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;align-items:start;margin:12px 0 0;padding:11px 13px;background:var(--steel);border-radius:6px;font-size:.92rem}
.ck-fos .icon{width:18px;height:18px;color:var(--orange)}
.ck-fos a{color:var(--navy);font-weight:800}
/* FW-150: paginated glossary index — compact term-link hub + active-letter A-Z nav */
.gloss-terms{display:flex;flex-wrap:wrap;gap:6px 8px;margin:6px 0 8px}
.gloss-terms a{display:inline-flex;align-items:center;border:1px solid var(--line);background:#fff;border-radius:5px;padding:4px 10px;font-size:.9rem;font-weight:700;color:var(--navy)}
.gloss-terms a:hover{border-color:var(--orange);color:var(--orange-dark);text-decoration:none}
.gloss-index a.is-active{background:var(--navy);color:#fff;border-color:var(--navy)}
.gloss-letternav a{font-weight:900}
/* FW-29: programmatic glossary term pages + index link affordance */
.gloss-item dt a{color:var(--navy)}
.gloss-item dt a:hover{color:var(--orange-dark)}
.gloss-term{max-width:880px}
.gloss-term-main{display:block}
.gloss-term-head{border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:6px}
.gloss-term-head h1{font-size:3rem;line-height:1.02;margin-bottom:.5rem}
.gloss-def{font-size:1.2rem;line-height:1.5;color:var(--ink);max-width:680px;margin:0 0 .7rem}
.gloss-term .meta-line{font-size:.92rem}
.gloss-variants{background:#fff;border:1px solid var(--line);border-left:3px solid var(--line-strong);border-radius:6px;padding:14px 16px;margin:18px 0}
.gloss-variants ul{margin:6px 0 0;padding-left:18px;color:var(--muted)}
.gloss-variants li+li{margin-top:6px}
.gloss-cta{display:block;margin:22px 0}
.gloss-cta .field-solution{border-left-color:var(--accent)}
.gloss-cta .field-solution .icon{color:var(--accent)}
.gloss-cta .text-link{margin-top:8px}
.gloss-where{margin-top:26px}
.gloss-where h2,.gloss-related h2{font-size:1.25rem;border-bottom:2px solid var(--line);padding-bottom:6px;margin-bottom:12px}
.gloss-ref-list{display:grid;gap:8px}
.gloss-ref-row{display:grid;grid-template-columns:minmax(0,1fr) 20px;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:7px;padding:12px 14px;color:var(--ink)}
.gloss-ref-row:hover{border-color:var(--orange);text-decoration:none}
.gloss-ref-row .row-label{display:block;margin-bottom:2px}
.gloss-ref-tx{min-width:0}
.gloss-ref-row strong{font-size:1.02rem}
.gloss-ref-row .icon{color:var(--muted)}
.gloss-related{margin-top:28px}
.gloss-chip-row{display:flex;flex-wrap:wrap;gap:8px}
.gloss-chip-row a{display:inline-flex;align-items:center;border:1px solid var(--line);background:#fff;border-radius:5px;padding:6px 11px;font-weight:700;color:var(--navy)}
.gloss-chip-row a:hover{border-color:var(--orange);color:var(--orange-dark);text-decoration:none}
.gloss-back{margin-top:30px}
@media (max-width:720px){.gloss-term-head h1{font-size:2.2rem}.gloss-def{font-size:1.06rem}}

/* FW-29b: in-prose glossary cross-links (subtle reference affordance, not a CTA) */
.article-section a.gloss-inline{color:var(--navy);text-decoration:none;border-bottom:1px dotted var(--line-strong);font-weight:600}
.article-section a.gloss-inline:hover{color:var(--orange-dark);border-bottom-color:var(--orange);text-decoration:none}
.term-list dt a{color:var(--navy)}
.term-list dt a:hover{color:var(--orange-dark)}

/* FW-25: standards & codes referenced block (entity grounding + E-E-A-T) */
.standards-block{border:1px solid var(--line);background:#fff;border-radius:var(--radius);padding:18px 18px 20px;margin-top:22px}
.standards-block h2{margin-top:0}
.std-note{color:var(--muted);font-size:.92rem;max-width:680px;margin:.3rem 0 14px}
.std-chip-row{display:flex;flex-wrap:wrap;gap:8px}
.std-chip{display:inline-flex;align-items:center;border:1px solid var(--line-strong);background:var(--steel);border-radius:5px;padding:5px 10px;font-weight:700;font-size:.86rem;color:#22303a;cursor:default}

/* FW-43: standards index + hub pages */
.std-chip-link{color:var(--navy);border-color:var(--line-strong)}
.std-chip-link:hover{border-color:var(--orange);color:var(--orange-dark);background:#fff;text-decoration:none}
.std-org-group{margin-top:26px}
.std-org-group>h2{font-size:1.2rem;color:var(--orange);border-bottom:2px solid var(--line);padding-bottom:5px;margin-bottom:12px}
.std-hub-list{display:grid;gap:8px}
.std-hub-row{display:grid;grid-template-columns:minmax(120px,190px) minmax(0,1fr) auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:7px;padding:13px 16px;color:var(--ink)}
.std-hub-row:hover{border-color:var(--orange);text-decoration:none}
.std-hub-name{font-weight:900}
.std-hub-desc{color:var(--muted);font-size:.92rem}
.std-hub-count{color:var(--navy);font-weight:800;font-size:.85rem;white-space:nowrap}
.std-subrefs{margin-top:24px}
.std-subrefs h2,.std-where h2{font-size:1.25rem;border-bottom:2px solid var(--line);padding-bottom:6px;margin-bottom:12px}
.std-where{margin-top:26px}
.std-trade-group{margin-bottom:18px}
.std-trade-group>h3{font-size:1rem;color:var(--navy);margin-bottom:8px}
@media (max-width:720px){.std-hub-row{grid-template-columns:1fr;gap:4px}.std-hub-count{justify-self:start}}

/* FW-48: trade-hub reference side-boxes (standards + glossary term links) */
.side-box .side-h{font-size:1.02rem;margin-top:22px}
.side-box>a span{color:var(--muted);font-weight:700;font-size:.82rem}

/* FW-47: trade label on cross-trade homonym glossary variants */
.gloss-variant-trade{font-weight:800;color:var(--navy)}

/* FW-59 + a11y wins: skip link + restored focus-visible outlines */
.skip-link{position:absolute;left:8px;top:-56px;z-index:100;background:var(--orange);color:#fff;padding:10px 16px;border-radius:6px;font-weight:900;transition:top .15s}
.skip-link:focus{top:8px;text-decoration:none}
main:focus{outline:none}
.nav-search input:focus-visible,.big-search input:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.nav-burger:focus-visible,.nav-dd summary:focus-visible{outline:2px solid var(--orange);outline-offset:2px}

/* FW-56: /compare/ decision pages — table + choose-when columns */
.compare-section{margin-top:26px}
.compare-section>h2{font-size:1.35rem;border-bottom:2px solid var(--line);padding-bottom:6px;margin-bottom:14px}
.compare-table{width:100%;border-collapse:collapse;background:#fff;font-size:.97rem}
.compare-table th,.compare-table td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.compare-table thead th{background:var(--navy);color:#fff}
.compare-table th[scope=row]{font-weight:800;color:var(--ink);width:22%;background:var(--steel)}
.compare-table tbody tr:nth-child(even) td{background:#fafbfb}
.compare-choose{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.compare-col{background:#fff;border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:8px;padding:16px 18px}
.compare-col h3{font-size:1.05rem;margin-bottom:8px}
.compare-col ul{margin:0;padding-left:18px}
.compare-col li{margin-bottom:6px}
@media (max-width:720px){.compare-choose{grid-template-columns:1fr}.compare-table th[scope=row]{width:auto}}

/* FW-57: calculator result actions (print/save + copy) + clean print field-card */
.calc-actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0 2px}
.print-foot{display:none}
@media print{
  .af-header,.af-footer,.skip-link,.nav-search,.calc-actions,#calc-go,#calc-warn,.quiz-cta,.signup-panel,.gloss-cta,.breadcrumbs{display:none!important}
  body{background:#fff;color:#000}
  #calc-out[hidden]{display:block!important}
  #calc-out{border:0;box-shadow:none;padding:0;margin-top:8px}
  .hub-hero{padding:0 0 6px}
  .print-foot{display:block!important;margin-top:22px;padding-top:12px;border-top:1px solid #bbb;color:#333;font-size:.82rem}
}

/* FW-63: printable per-guide field card (screen-hidden; shown clean in print) */
.field-card{display:none}
.guide-actions{margin:16px 0 6px}
@media print{
  .article-layout{display:none!important}
  .field-card{display:block!important;max-width:100%;padding:0;color:#000}
  .field-card .fc-head{border-bottom:2px solid #000;padding-bottom:8px;margin-bottom:12px}
  .field-card .fc-eyebrow{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:#a92c0b;font-weight:800;margin:0}
  .field-card h2{font-size:1.55rem;line-height:1.1;margin:.2rem 0 0}
  .field-card .fc-answer{font-size:1rem;margin:0 0 12px}
  .field-card .fc-block{margin:0 0 12px;break-inside:avoid}
  .field-card .fc-block h3{font-size:1.02rem;margin:0 0 6px;border-bottom:1px solid #999;padding-bottom:3px}
  .field-card ul{margin:0;padding-left:20px}
  .field-card .fc-check{list-style:none;padding-left:0}
  .field-card .fc-check li{padding-left:22px;position:relative;margin-bottom:5px}
  .field-card .fc-check li:before{content:"\2610";position:absolute;left:0;top:-2px;font-size:1.15rem}
  .field-card .fc-std{font-size:.85rem;color:#333;margin-top:10px}
  .field-card .print-foot{display:block!important;margin-top:16px;border-top:1px solid #bbb;padding-top:8px}
}

/* FW-64: /start/ intent router goal sections */
.start-goal{margin-top:30px}
.start-goal-head{margin-bottom:12px}
.start-goal-head h2{display:flex;align-items:center;gap:10px;font-size:1.35rem;margin:0}
.start-goal-head h2 .icon{color:var(--accent,var(--orange))}
.start-goal-head p{color:var(--muted);margin:5px 0 0}
.start-trades{margin-top:12px}

/* FW-70: FieldOS product proof gallery */
.fos-shots-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.fos-shots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:22px;align-items:start}
.fos-shots figure{margin:0}
.fos-shots img{width:100%;height:auto;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);background:#f4f6f7;display:block}
.fos-shots figcaption{margin-top:10px;color:var(--muted);font-weight:700;font-size:.95rem}
@media (max-width:900px){.fos-shots{grid-template-columns:1fr;max-width:560px;margin-inline:auto}}

/* FW-75: unified /tools/ hub */
.tools-bytype{display:flex;flex-wrap:wrap;gap:20px;margin:6px 0 10px}
.tools-bytype .text-link{margin-top:0}
.tools-sub{font-size:1.05rem;margin:18px 0 10px;color:var(--navy)}

/* FW-76: compare<->glossary/standards mesh groups */
.compare-mesh-group{margin-bottom:14px}
.compare-mesh-group h3{font-size:1rem;color:var(--navy);margin:0 0 8px}

/* FW-73: per-trade printable field-card pack (/field-guides/{trade}/pack/) */
.trade-world-pack{margin:12px 0 0}
.trade-world-pack a{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--accent,var(--orange));text-decoration:none;font-size:.95rem}
.trade-world-pack a:hover{text-decoration:underline}
.fcp-hero{padding:6px 0 4px}
.fcp-hero h1{margin:.2rem 0 .45rem}
.fcp-stat{font-weight:600;color:var(--muted);margin:.1rem 0 16px}
.fcp-stat strong{color:var(--ink)}
.fcp-calcs{margin:20px 0 4px}
.fcp-calcs h2{font-size:1.2rem;margin:0 0 10px}
.fcp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px;margin-top:20px;align-items:start}
.fcp-card{border:1px solid var(--line,#e4e7ec);border-radius:12px;padding:14px 16px;background:#fff;break-inside:avoid}
.fcp-card .fcp-eyebrow{font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent,var(--orange));font-weight:800;margin:0 0 3px}
.fcp-card h3{font-size:1.05rem;line-height:1.2;margin:0 0 8px}
.fcp-card h3 a{text-decoration:none;color:var(--ink)}
.fcp-card h3 a:hover{color:var(--accent,var(--orange))}
.fcp-card ul{margin:0;padding-left:18px}
.fcp-card li{margin-bottom:5px;font-size:.9rem;line-height:1.42}
.fcp-std{font-size:.78rem;color:var(--muted);margin:9px 0 0}
.fcp-std span{font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:#8a929c;margin-right:5px}
.fcp-print-head{display:none}
@media print{
  .af-header,.af-footer,.skip-link,.nav-search,.breadcrumbs,.fcp-screen{display:none!important}
  body{background:#fff;color:#000}
  .fcp-wrap{padding:0!important}
  .fcp-print-head{display:block!important;border-bottom:2px solid #000;padding-bottom:6px;margin-bottom:12px}
  .fcp-print-head .fcp-eyebrow{font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:#a92c0b;font-weight:800;margin:0}
  .fcp-print-head h2{margin:.12rem 0 0;font-size:1.5rem}
  .fcp-grid{grid-template-columns:1fr 1fr;gap:10px;margin-top:0}
  .fcp-card{border:1px solid #bbb;border-radius:0;padding:8px 10px;background:#fff;color:#000}
  .fcp-card h3{font-size:.96rem}
  .fcp-card h3 a{color:#000}
  .fcp-card li{font-size:.8rem;margin-bottom:3px}
  .fcp-std{color:#333}
}

/* FW-72: intent-matched lead-magnet asset block (sits inside the navy .signup-panel) */
.lm-asset{display:grid;grid-template-columns:30px minmax(0,1fr) 18px;gap:12px;align-items:center;margin:2px 0 16px;padding:12px 14px;border:1px solid rgba(255,255,255,.28);border-radius:8px;background:rgba(255,255,255,.07);color:#fff}
.lm-asset:hover{background:rgba(255,255,255,.14);text-decoration:none;border-color:#ff8b61}
.lm-asset .lm-ic{display:grid;place-items:center}
.lm-asset .lm-ic .icon{width:26px;height:26px;color:#ff8b61}
.lm-txt strong{display:block;font-size:.98rem;line-height:1.2}
.lm-txt small{display:block;color:#dbe7ee;font-size:.82rem;margin-top:3px;line-height:1.35}
.lm-asset .lm-arrow .icon{width:18px;height:18px;color:#ff8b61}

/* FW-83: trade-hub "start here" CTA box in the sidebar */
.side-cta{display:grid;grid-template-columns:22px minmax(0,1fr) 16px;gap:10px;align-items:center;border:1px solid var(--line);border-left:3px solid var(--accent,var(--orange));background:#fff;border-radius:8px;padding:12px 14px;margin-bottom:14px;color:var(--ink)}
.side-cta:hover{border-color:var(--accent,var(--orange));text-decoration:none}
.side-cta>.icon{color:var(--accent,var(--orange))}
.side-cta strong{display:block;font-size:.95rem;line-height:1.2}
.side-cta small{display:block;color:var(--muted);font-size:.82rem;margin-top:3px;line-height:1.35}

/* FW-104: E-E-A-T editorial signals — guide byline link + /trust editorial steps */
.article-meta a{color:var(--navy);font-weight:800;text-decoration:none;border-bottom:1px solid rgba(8,63,102,.3)}
.article-meta a:hover{border-bottom-color:var(--navy)}
.trust-steps{counter-reset:ts;list-style:none;padding:0;margin:14px 0 0;display:grid;gap:12px}
.trust-steps li{position:relative;padding:14px 16px 14px 52px;border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:8px;background:#fff}
.trust-steps li:before{counter-increment:ts;content:counter(ts);position:absolute;left:14px;top:13px;width:26px;height:26px;display:grid;place-items:center;background:var(--navy);color:#fff;border-radius:50%;font-weight:900;font-size:.85rem}
.trust-steps strong{display:block;margin-bottom:2px}

/* FW-115: homepage verifiable-proof list (replaces the fabricated testimonial) */
.proof-list{list-style:none;padding:0;margin:0;display:grid;gap:11px}
.proof-list li{font-size:.9rem;line-height:1.42;color:var(--muted);padding-left:20px;position:relative}
.proof-list li:before{content:"";position:absolute;left:0;top:6px;width:8px;height:8px;background:var(--orange);border-radius:2px}
.proof-list strong{color:var(--ink);font-size:1.02rem}
.rail-grid .proof-list a{display:inline;border:0;padding:0;color:var(--navy);font-weight:800}

/* FW-119: homepage breadth strip — showcases the full free flywheel with real counts */
.breadth-strip{border-bottom:1px solid var(--line);background:#fff;padding:34px 0}
.breadth-strip .breadth-h{font-size:1.5rem;margin:2px 0 18px}
.breadth-grid{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:12px}
.breadth-grid a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-align:center;padding:16px 8px;border:1px solid var(--line);border-radius:10px;background:var(--paper);color:var(--ink)}
.breadth-grid a:hover{border-color:var(--orange);text-decoration:none;transform:translateY(-2px);transition:transform .12s}
.breadth-grid strong{font-size:1.7rem;line-height:1;color:var(--orange-dark);font-weight:950}
.breadth-grid span{font-size:.8rem;color:var(--muted);font-weight:700}
@media (max-width:900px){.breadth-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media (max-width:520px){.breadth-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* FW-128/134: coming-soon product callout - navy/dashed to distinguish from the orange FieldOS CTA */
.product-callout .field-solution{border-left-color:var(--navy);border-left-style:dashed}
.product-callout .field-solution>span .icon{color:var(--navy)}
.product-callout .field-solution a{color:var(--orange-dark)}

/* FW-193: /answers/ browsable Q&A surface — breadcrumb, per-trade cards, question directory */
.crumbs{padding:14px 0 0;color:var(--muted);font-size:.9rem;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--orange-dark);text-decoration:underline}
.crumbs .icon{width:.8em;height:.8em;opacity:.55}
.crumbs span{color:var(--ink);font-weight:600}
.answers-featured{margin-top:var(--space-3)}
.answers-featured details>div{padding:0 2px 4px}
.answers-featured details>div .text-link{margin-top:8px}
.answers-card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-3);margin-top:var(--space-3)}
.answers-card{border:1px solid var(--line);border-top:3px solid var(--accent,var(--orange));border-radius:var(--radius);padding:var(--space-3);background:var(--surface);display:flex;flex-direction:column;gap:12px}
.answers-card-head{display:flex;gap:12px;align-items:center}
.answers-card-ic{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;flex:0 0 38px;border-radius:var(--radius-sm);background:color-mix(in srgb,var(--accent,var(--orange)) 12%,transparent);color:var(--accent,var(--orange-dark))}
.answers-card-head strong{display:block;font-size:1.05rem;line-height:1.2}
.answers-card-head strong a{color:var(--ink);text-decoration:none}
.answers-card-head strong a:hover{color:var(--orange-dark)}
.answers-card-head small{color:var(--muted)}
.answers-card .text-link{margin-top:auto}
.answers-qlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}
.answers-qlist li{line-height:1.3}
.answers-qlist a{color:var(--ink);text-decoration:none;font-size:.95rem}
.answers-qlist a:hover{color:var(--orange-dark);text-decoration:underline}
.answers-index{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:var(--space-3);align-items:start;margin-top:var(--space-3)}
.answers-group{border:1px solid var(--line);border-radius:var(--radius-sm);padding:var(--space-3);background:var(--surface)}
.answers-group h3{font-size:1.02rem;line-height:1.25;margin:0 0 10px}
.answers-group h3 a{color:var(--ink);text-decoration:none}
.answers-group h3 a:hover{color:var(--orange-dark)}

/* FW-198: stack the matched "Run the numbers" calculator deep-links in the compare CTA (were inline/crowded) */
.compare-calc-links{display:flex;flex-direction:column;align-items:flex-start;gap:6px;margin-top:12px}
.compare-calc-links .text-link{margin-top:0}

/* FW-201: /convert/ unit-converter widget + reference tables */
.cv-widget{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:var(--space-3);margin:var(--space-3) 0}
.cv-controls{display:grid;grid-template-columns:1fr 1.4fr auto 1.4fr;gap:12px;align-items:end}
.cv-field{display:flex;flex-direction:column;gap:5px;min-width:0}
.cv-field label{font-size:.82rem;color:var(--muted);font-weight:600}
.cv-field input,.cv-field select{width:100%;padding:10px 12px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);font-size:1rem}
.cv-swap{align-self:end;height:42px;width:42px;flex:0 0 42px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;color:var(--orange-dark)}
.cv-swap:hover{background:var(--band)}
.cv-out{margin:16px 0 0;font-size:1.25rem;line-height:1.4;color:var(--ink)}
.cv-out strong{color:var(--orange-dark)}
.cv-alldd{margin-top:12px}
.cv-alldd summary{cursor:pointer;color:var(--orange-dark);font-weight:600;font-size:.92rem}
.cv-alltable,.cv-reftable{width:100%;border-collapse:collapse;margin-top:10px}
.cv-alltable td,.cv-reftable td,.cv-reftable th{border:1px solid var(--line);padding:8px 12px;text-align:left;font-size:.94rem}
.cv-reftable th{background:var(--band);font-weight:700}
.cv-alltable td:last-child,.cv-reftable td:not(:first-child){font-variant-numeric:tabular-nums;color:var(--ink)}
.cv-chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.cv-chip{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface);color:var(--ink);text-decoration:none;font-size:.9rem}
.cv-chip:hover{border-color:var(--orange);color:var(--orange-dark)}
@media(max-width:640px){.cv-controls{grid-template-columns:1fr 1fr;gap:10px}.cv-swap{grid-column:1 / -1;width:100%}}

/* FW-199: "People also ask" cross-guide question graph — recognizable bordered rows with a chevron */
.paa-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.paa-list li{margin:0}
.paa-list a{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink);text-decoration:none;font-weight:600;line-height:1.35}
.paa-list a:hover{border-color:var(--orange);color:var(--orange-dark)}
.paa-list a::after{content:"";width:8px;height:8px;flex:0 0 auto;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg);opacity:.5}

/* FW-202: worked-example block on calculator pages */
.worked-example{border:1px solid var(--line);border-left:3px solid var(--orange);border-radius:var(--radius);background:var(--surface);padding:var(--space-4) var(--space-5)}
.we-scenario{font-weight:600;color:var(--ink);margin:0 0 var(--space-3);max-width:70ch}
.we-grid{display:grid;grid-template-columns:minmax(180px,240px) 1fr;gap:clamp(16px,3vw,32px);align-items:start}
.we-given{list-style:none;margin:0;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--paper);display:flex;flex-direction:column;gap:8px}
.we-given li{display:flex;justify-content:space-between;gap:10px;font-size:.92rem;border-bottom:1px solid var(--line);padding-bottom:6px}
.we-given li:last-child{border-bottom:0;padding-bottom:0}
.we-given span{color:var(--muted)}
.we-steps{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:9px;line-height:1.5}
.we-steps li{padding-left:4px}
.we-answer{display:flex;gap:10px;align-items:flex-start;margin:var(--space-4) 0 0;padding:14px 16px;border-radius:var(--radius-sm);background:color-mix(in srgb,var(--green) 12%,transparent);font-weight:600;line-height:1.45}
.we-answer .icon{color:var(--green);flex:0 0 auto;margin-top:2px}
@media(max-width:640px){.we-grid{grid-template-columns:1fr}}