/* Boiler Decoder: public site styles. No frameworks. */
:root{
  --primary:#0f2a44;--primary-2:#163b5f;--accent:#e8590c;
  --ink:#14202e;--ink-2:#334155;--muted:#5d6b7b;--line:#e2e8ef;--line-2:#eef2f6;
  --bg:#f5f7fa;--card:#fff;--radius:14px;--radius-sm:9px;
  --diy:#137a45;--diy-bg:#e5f5ec;--chk:#8f5400;--chk-bg:#fff2d9;--eng:#b42318;--eng-bg:#fdecea;
  --shadow:0 1px 2px rgba(16,32,52,.06),0 4px 16px rgba(16,32,52,.06);
  --shadow-lg:0 10px 40px rgba(16,32,52,.14);
  --font:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular","Cascadia Mono","Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.65;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;vertical-align:middle}
a{color:var(--primary-2);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--accent)}
h1,h2,h3,h4{line-height:1.2;letter-spacing:-.02em;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800}
h2{font-size:clamp(1.3rem,2.2vw,1.6rem);font-weight:750}
h3{font-size:1.12rem;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.narrow{max-width:820px}
.center{text-align:center}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 14px;z-index:99}
.skip:focus{left:10px}
.muted{color:var(--muted)}.small{font-size:.88rem}
:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 70%,transparent);outline-offset:2px;border-radius:4px}

/* Gas strip */
.gas-strip{background:#fff7ed;border-bottom:1px solid #fde1c4;color:#7a3a07;font-size:.84rem;line-height:1.4}
.gas-strip .wrap{display:flex;gap:8px;align-items:center;padding-top:7px;padding-bottom:7px}
.gas-strip svg{flex:none;color:var(--accent)}
.gas-short{display:none}.gas-short a{color:inherit;font-weight:700}

/* Header */
.site-header{background:var(--primary);color:#fff;position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(0,0,0,.12)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;font-size:1.12rem;letter-spacing:-.02em;white-space:nowrap}
.logo:hover{color:#fff}
.logo-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.1);color:var(--accent)}
.logo-mark svg{width:24px;height:24px}
.main-nav{display:flex;gap:4px;align-items:center;margin-left:auto}
.main-nav>a,.nav-drop>a{color:#dbe6f1;text-decoration:none;font-weight:600;font-size:.95rem;padding:9px 12px;border-radius:8px;display:block}
.main-nav>a:hover,.nav-drop>a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.09)}
.nav-drop{position:relative}
.drop-panel{position:absolute;top:100%;left:0;min-width:250px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;display:none;margin-top:6px}
.drop-panel::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px}
.nav-drop:hover .drop-panel,.nav-drop:focus-within .drop-panel{display:block}
.drop-panel a{display:flex;justify-content:space-between;gap:10px;padding:8px 12px;border-radius:8px;color:var(--ink);text-decoration:none;font-weight:600;font-size:.93rem}
.drop-panel a small{color:var(--muted);font-weight:500}
.drop-panel a:hover{background:var(--bg);color:var(--primary)}
.drop-panel .drop-all{color:var(--accent);border-top:1px solid var(--line);border-radius:0 0 8px 8px;margin-top:4px}
.header-search{display:flex;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);border-radius:10px;overflow:hidden}
.header-search input{background:transparent;border:0;color:#fff;padding:9px 12px;width:200px;font:inherit;font-size:.9rem}
.header-search input::placeholder{color:#a9bccf}
.header-search input:focus{outline:none}
.header-search button{background:transparent;border:0;color:#dbe6f1;padding:0 12px;height:38px;cursor:pointer}
.nav-toggle{display:none;background:transparent;border:0;width:42px;height:42px;padding:10px;cursor:pointer;margin-left:auto}
.nav-toggle span{display:block;height:2px;background:#fff;margin:5px 0;border-radius:2px;transition:.2s}
.admin-bar{background:#111827;color:#cbd5e1;font-size:.82rem}
.admin-bar .wrap{display:flex;gap:16px;padding-top:6px;padding-bottom:6px}
.admin-bar a{color:#fbbf24;text-decoration:none;font-weight:600}

/* Hero */
.hero{background:radial-gradient(1200px 400px at 85% -10%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 60%),linear-gradient(180deg,var(--primary),var(--primary-2));color:#fff;padding:64px 0 56px}
.hero-inner{max-width:860px;text-align:center}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.76rem;font-weight:700;color:var(--accent);margin-bottom:12px}
.hero h1{color:#fff;margin-bottom:14px}
.hero-sub{color:#c9d7e5;font-size:1.1rem;max-width:640px;margin:0 auto 26px}
.hero-search{display:flex;background:#fff;border-radius:14px;padding:6px;box-shadow:var(--shadow-lg);max-width:640px;margin:0 auto}
.hero-search input{flex:1;border:0;font:inherit;font-size:1.05rem;padding:12px 14px;min-width:0;color:var(--ink);background:transparent}
.hero-search input:focus{outline:none}
.hero-search button,.btn{background:var(--accent);color:#fff;border:0;border-radius:10px;padding:12px 22px;font:inherit;font-weight:700;cursor:pointer;white-space:nowrap;text-decoration:none;display:inline-block}
.hero-search button:hover,.btn:hover{filter:brightness(1.07);color:#fff}
.hero-search.slim{margin:18px 0 0;max-width:620px;box-shadow:var(--shadow);border:1px solid var(--line)}
.center .hero-search.slim{margin:18px auto}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px;font-size:.88rem;color:#a9bccf;align-items:center}
.chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16);color:#fff;text-decoration:none;padding:5px 12px;border-radius:99px;font-weight:600}
.chip:hover{background:#fff;color:var(--primary)}
.hero-stats{list-style:none;padding:0;margin:30px 0 0;display:flex;gap:28px;justify-content:center;flex-wrap:wrap;color:#c9d7e5;font-size:.92rem}
.hero-stats strong{color:#fff}

/* Sections */
.section{padding:52px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-tight{padding:30px 20px 50px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:20px}
.section-head h2{margin:0}
.link-more{font-weight:700;text-decoration:none;white-space:nowrap}

/* Cards and grids */
.brand-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.brand-card{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--ink);transition:.15s;box-shadow:var(--shadow)}
.brand-card:hover{border-color:var(--accent);transform:translateY(-2px);color:var(--ink)}
.brand-badge{grid-row:span 2;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:800;letter-spacing:.02em}
.brand-name{font-weight:750;font-size:1.05rem;line-height:1.2}
.brand-count{color:var(--muted);font-size:.86rem}
.code-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.code-grid.compact{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.code-card{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--ink);transition:.15s}
.code-card:hover{border-color:var(--accent);box-shadow:var(--shadow);color:var(--ink)}
.code-card-top{display:flex;justify-content:space-between;align-items:center;gap:8px}
.code-brand{font-size:.8rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.code-big{font-family:var(--mono);font-weight:800;font-size:1.7rem;color:var(--primary);letter-spacing:.02em}
.code-big.sm{font-size:1.15rem}
.code-sum{color:var(--ink-2);font-size:.93rem;line-height:1.45}
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.guide-card{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--ink);border-top:4px solid var(--accent);transition:.15s}
.guide-card:hover{box-shadow:var(--shadow);color:var(--ink);transform:translateY(-2px)}
.guide-title{font-weight:750;font-size:1.08rem;line-height:1.3}
.guide-sum{color:var(--muted);font-size:.93rem;line-height:1.5;flex:1}
.guide-meta{font-size:.8rem;color:var(--muted);font-weight:600}
.legend{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.legend-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.legend-item p{margin:10px 0 0;color:var(--ink-2);font-size:.95rem}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:22px}

/* Severity */
.sev{display:inline-flex;align-items:center;gap:6px;font-size:.76rem;font-weight:700;padding:3px 10px;border-radius:99px;white-space:nowrap;line-height:1.5}
.sev::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.sev-diy{color:var(--diy);background:var(--diy-bg)}
.sev-check{color:var(--chk);background:var(--chk-bg)}
.sev-eng{color:var(--eng);background:var(--eng-bg)}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px}
.dot-diy{background:var(--diy)}.dot-check{background:#d98c00}.dot-eng{background:var(--eng)}

/* Page hero */
.page-hero{background:#fff;border-bottom:1px solid var(--line);padding:26px 0 30px}
.page-hero h1{margin-bottom:10px}
.lead{font-size:1.1rem;color:var(--ink-2);max-width:760px}
.lead p:last-child{margin-bottom:0}
.lead-sm{color:var(--muted);font-size:.9rem;margin:0}
.crumbs ol{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:6px;font-size:.84rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin-right:6px;color:#9aa8b6}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--accent)}
.mini-stats{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.9rem;color:var(--ink-2)}
.article-head{display:flex;gap:22px;align-items:center}
.display-code{flex:none;background:#0b1220;border-radius:14px;padding:14px 18px 10px;box-shadow:inset 0 0 0 3px #1f2b3d,var(--shadow);text-align:center;min-width:120px}
.lcd{display:block;font-family:var(--mono);font-size:2.1rem;font-weight:800;color:#7cf5c8;text-shadow:0 0 12px rgba(124,245,200,.45);letter-spacing:.06em;line-height:1.1}
.lcd-brand{display:block;font-size:.66rem;color:#7d8aa0;text-transform:uppercase;letter-spacing:.14em;margin-top:6px}
.article-meta{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;color:var(--muted);font-size:.88rem}
.meta-brand{font-weight:700;text-decoration:none}

/* Layout grid */
.page-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;padding-top:28px;padding-bottom:50px}
.side-col{display:flex;flex-direction:column;gap:18px}
.side-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.side-box h3{font-size:.98rem;margin-bottom:12px}
.side-list{list-style:none;padding:0;margin:0}
.side-list li+li{border-top:1px solid var(--line-2)}
.side-list a{display:flex;justify-content:space-between;gap:10px;padding:8px 0;text-decoration:none;color:var(--ink-2);font-size:.93rem;font-weight:550}
.side-list a:hover{color:var(--accent)}
.side-list small{color:var(--muted)}
.side-codes{list-style:none;padding:0;margin:0;max-height:420px;overflow:auto}
.side-codes a{display:grid;grid-template-columns:62px 1fr;gap:8px;padding:7px 0;text-decoration:none;color:var(--ink-2);font-size:.86rem;border-top:1px solid var(--line-2);line-height:1.35}
.side-codes b{font-family:var(--mono);color:var(--primary)}
.side-codes a:hover{color:var(--accent)}
.side-search{display:flex;gap:6px}
.side-search input{flex:1;min-width:0;border:1px solid var(--line);border-radius:9px;padding:9px 10px;font:inherit;font-size:.92rem}
.side-search button{background:var(--primary);color:#fff;border:0;border-radius:9px;padding:0 14px;font-weight:700;cursor:pointer}
.sticky-slot{position:sticky;top:86px}

/* Article */
.answer-box{background:linear-gradient(180deg,#fff,#fbfcfe);border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:var(--radius);padding:20px 24px;margin-bottom:22px;box-shadow:var(--shadow)}
.answer-title{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:var(--accent);margin-bottom:8px}
.answer-box p:last-child{margin-bottom:0}
.toc{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 20px;margin-bottom:22px}
.toc summary{font-weight:700;cursor:pointer}
.toc ol{margin:10px 0 0;padding-left:20px;columns:2;column-gap:30px;font-size:.93rem}
.toc li{margin:3px 0;break-inside:avoid}
.toc a{text-decoration:none}
.prose{font-size:1.04rem}
.prose>*:first-child{margin-top:0}
.prose h2{margin-top:1.8em}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.3em;margin:0 0 1.1em}
.prose li{margin:.35em 0}
.prose table{width:100%;border-collapse:collapse;margin:1em 0 1.4em;font-size:.95rem;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--bg);font-weight:700}
.prose blockquote,.prose .note{margin:1.2em 0;padding:14px 18px;background:#f1f6fb;border-left:4px solid var(--primary-2);border-radius:0 10px 10px 0}
.prose .warning{margin:1.2em 0;padding:14px 18px;background:var(--eng-bg);border-left:4px solid var(--eng);border-radius:0 10px 10px 0;color:#5f1510}
.prose .tip{margin:1.2em 0;padding:14px 18px;background:var(--diy-bg);border-left:4px solid var(--diy);border-radius:0 10px 10px 0}
.prose .warning p:last-child,.prose .tip p:last-child,.prose .note p:last-child{margin:0}
.faq{margin-top:34px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;padding:15px 18px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.3rem;line-height:1;color:var(--accent);flex:none}
.faq details[open] summary::after{content:"–"}
.faq-a{padding:0 18px 14px;color:var(--ink-2)}
.faq-a p:last-child{margin:0}
.safety-box{display:flex;gap:16px;background:#fff8f1;border:1px solid #fbd9b6;border-radius:var(--radius);padding:20px 22px;margin:30px 0;font-size:.95rem}
.safety-icon{color:var(--accent);flex:none}
.safety-box h3{margin-bottom:6px}
.safety-box p{margin-bottom:.6em}
.safety-box p:last-child{margin:0}
.safety-emergency a{color:var(--eng)}
.more-codes,.related{margin-top:34px}
.related-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.related-list a{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;text-decoration:none;color:var(--ink);height:100%}
.related-list a:hover{border-color:var(--accent);color:var(--ink)}
.related-list span{color:var(--muted);font-size:.9rem;line-height:1.45}
.fine-print{margin-top:30px;font-size:.84rem;color:var(--muted);border-top:1px solid var(--line);padding-top:16px}

/* Brand table */
.code-table-card{padding:0;overflow:hidden}
.table-tools{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.table-tools h2{margin:0;font-size:1.2rem}
.table-tools input{border:1px solid var(--line);border-radius:9px;padding:9px 12px;font:inherit;font-size:.92rem;min-width:240px}
.table-wrap{overflow-x:auto}
.code-table{width:100%;border-collapse:collapse}
.code-table th{text-align:left;font-size:.78rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);padding:12px 22px;background:var(--bg)}
.code-table td{padding:13px 22px;border-top:1px solid var(--line-2);vertical-align:middle}
.code-table td a{text-decoration:none;color:var(--ink)}
.code-table td a:hover{color:var(--accent)}
.code-table tr:hover td{background:#fbfcfd}
.code-pill{display:inline-block;font-family:var(--mono);font-weight:800;background:var(--primary);color:#fff!important;padding:3px 10px;border-radius:7px;font-size:.92rem;text-decoration:none}

/* Search results */
.result-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.result-list a{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--ink)}
.result-list a:hover{border-color:var(--accent)}
.r-top{display:flex;gap:10px;align-items:center}
.r-brand{font-weight:700;font-size:.85rem;color:var(--muted)}

/* Forms */
.form label{display:block;font-weight:650;font-size:.92rem;margin-bottom:14px}
.form input,.form textarea{display:block;width:100%;margin-top:6px;border:1px solid #cfd8e2;border-radius:10px;padding:11px 12px;font:inherit;font-weight:400}
.form input:focus,.form textarea:focus{border-color:var(--primary-2);outline:none;box-shadow:0 0 0 3px rgba(22,59,95,.12)}
.form-row.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hp{position:absolute;left:-5000px}
.notice{padding:14px 16px;border-radius:10px;margin-bottom:16px}
.notice-ok{background:var(--diy-bg);color:#0d5130}
.notice-err{background:var(--eng-bg);color:#7a1a12}

/* Ads */
.ad-slot{margin:22px auto;text-align:center;min-height:90px;overflow:hidden;clear:both}
.ad-label{display:block;font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:#98a4b1;margin-bottom:4px}
.side-col .ad-slot{margin:0;min-height:250px}
.ad-placeholder{border:2px dashed #f5a25d;background:repeating-linear-gradient(45deg,#fff8f1,#fff8f1 10px,#fff 10px,#fff 20px);border-radius:12px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;color:#8a4a12;font-size:.85rem;padding:14px}
.ad-placeholder a{color:#b8520e;font-weight:700}
.ad-mobile_anchor{position:fixed;left:0;right:0;bottom:0;margin:0;z-index:60;background:#fff;box-shadow:0 -4px 18px rgba(0,0,0,.12);min-height:60px;padding:4px 0}
.ad-mobile_anchor.ad-placeholder{border-radius:0;margin:0}

/* Footer */
.site-footer{background:#0b1d30;color:#a9bccf;margin-top:40px;padding-top:50px;font-size:.93rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr .9fr;gap:34px;padding-bottom:36px}
.site-footer h3{color:#fff;font-size:.95rem;margin-bottom:12px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:6px 0}
.site-footer a{color:#a9bccf;text-decoration:none}
.site-footer a:hover{color:#fff}
.f-about p{margin-top:14px;line-height:1.6}
.logo-light{color:#fff}
.footer-base{border-top:1px solid rgba(255,255,255,.08);padding-top:18px;padding-bottom:26px;font-size:.84rem}
.footer-base p{margin:0}

/* Responsive */
@media (max-width:1000px){
  .page-grid{grid-template-columns:1fr}
  .side-col .ad-slot,.sticky-slot{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .header-search input{width:150px}
}
@media (max-width:820px){
  body{font-size:16px}
  .nav-toggle{display:block}
  .header-search{display:none}
  .main-nav{position:absolute;top:68px;left:0;right:0;background:var(--primary);flex-direction:column;align-items:stretch;padding:10px 16px 18px;display:none;box-shadow:0 12px 20px rgba(0,0,0,.2)}
  .main-nav.open{display:flex}
  .drop-panel{position:static;display:block;background:transparent;box-shadow:none;padding:0 0 0 10px;margin:0}
  .drop-panel a{color:#c9d7e5;padding:6px 12px}
  .drop-panel a:hover{background:rgba(255,255,255,.06);color:#fff}
  .drop-panel .drop-all{border-top:0;color:var(--accent)}
  .legend{grid-template-columns:1fr}
  .related-list{grid-template-columns:1fr}
  .toc ol{columns:1}
  .article-head{flex-direction:column;align-items:flex-start;gap:14px}
  .display-code{min-width:0;padding:10px 16px 8px}
  .lcd{font-size:1.6rem}
  .form-row.two{grid-template-columns:1fr}
  .hero{padding:44px 0 40px}
  .hero-search{flex-direction:column;gap:6px}
  .hero-search button{width:100%}
  .table-tools input{min-width:0;width:100%}
  .code-table th,.code-table td{padding:11px 14px}
  .card{padding:20px}
  body.has-anchor{padding-bottom:70px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .brand-grid{grid-template-columns:1fr 1fr}
  .brand-card{grid-template-columns:1fr;text-align:left;row-gap:8px}
  .brand-badge{grid-row:auto;width:40px;height:40px}
  .code-table th:nth-child(3),.code-table td:nth-child(3){display:none}
  .gas-strip{font-size:.82rem}
  .gas-long{display:none}.gas-short{display:inline}
}
@media print{.site-header,.gas-strip,.site-footer,.side-col,.ad-slot{display:none}}