:root{
  --paper:#eef6f8;
  --surface:#f9fcfd;
  --ink:#31566a;
  --muted:#668193;
  --line:#b9d2da;
  --accent:#e56d5a;
  --accent-soft:#f6d9d3;
  --cyan:#4f9cac;
  --cyan-soft:#d9eef2;
  --white:#ffffff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;font-size:16px;line-height:1.65}
a{color:inherit;text-decoration:none}
a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.topbar{max-width:1180px;margin:0 auto;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:13px;min-width:max-content}
.brand-mark{width:42px;height:42px;display:grid;place-items:center;background:var(--accent);color:var(--white);font-weight:800;font-size:21px}
.brand strong,.brand small{display:block}.brand strong{font-size:17px;letter-spacing:.02em}.brand small{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.16em}
.topnav{display:flex;align-items:center;gap:26px;flex-wrap:wrap}.topnav a{font-size:14px;font-weight:700;border-bottom:2px solid transparent;padding:6px 0}.topnav a:hover,.topnav a:active{border-color:var(--accent)}
.hero-shell{max-width:1180px;margin:0 auto;padding:78px 28px 32px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(270px,.65fr);gap:72px;align-items:end}
.eyebrow,.chapter-head>p,.machine-lines>header>p,.spectrum-title>p,.fault-ledger>header>p{margin:0 0 13px;text-transform:uppercase;letter-spacing:.18em;font-size:12px;font-weight:800;color:var(--cyan)}
h1{font-size:40px;line-height:1.08;margin:0 0 24px;letter-spacing:-.035em}h2{font-size:28px;line-height:1.18;margin:0 0 16px;letter-spacing:-.02em}h3{font-size:20px;line-height:1.25;margin:0 0 8px}
p{margin:0 0 16px}.hero-lead{font-size:21px;line-height:1.45;max-width:740px}.hero-copy>p:last-child{max-width:700px;color:var(--muted)}
.hero-facts{margin:0;border-top:4px solid var(--accent)}.hero-facts div{display:grid;grid-template-columns:90px 1fr;gap:20px;padding:14px 0;border-bottom:1px solid var(--line)}.hero-facts dt{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:800}.hero-facts dd{margin:0;font-weight:700}
.chapter{max-width:1180px;margin:0 auto;padding:86px 28px;border-top:1px solid var(--line)}.chapter-head{display:grid;grid-template-columns:180px minmax(0,1.1fr) minmax(250px,.7fr);gap:24px;align-items:start;margin-bottom:42px}.chapter-head.narrow{grid-template-columns:180px minmax(0,1fr) minmax(240px,.7fr)}.chapter-head>p{padding-top:8px}.chapter-head>h2{margin:0}.chapter-head>p:last-child{color:var(--muted);text-transform:none;letter-spacing:0;font-size:16px;font-weight:400;padding-top:0}
.local-register{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.local-register li{display:grid;grid-template-columns:110px minmax(0,1fr);gap:30px;border-bottom:1px solid var(--line);padding:28px 0}.local-no{font-size:12px;font-weight:800;color:var(--accent);letter-spacing:.14em}.local-register p{margin:0;color:var(--muted);max-width:800px}.local-major{min-height:155px}.local-major h3{font-size:26px}.local-medium{padding-left:8%!important}.local-compact{padding-left:16%!important;grid-template-columns:90px minmax(0,1fr)!important}.local-minor{padding-left:28%!important;grid-template-columns:70px minmax(0,1fr)!important}.local-minor p{max-width:650px}
.device-stack{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.device-stack article{padding:30px;display:grid;grid-template-columns:48px 1fr;gap:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(255,255,255,.35)}.device-stack article>span{font-size:12px;color:var(--accent);font-weight:800}.device-stack p{margin:0;color:var(--muted)}
.fault-table{margin:0;border-top:4px solid var(--cyan)}.fault-table div{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}.fault-table dt{font-weight:800}.fault-table dd{margin:0;color:var(--muted)}
.specialty-lines{border-top:1px solid var(--line)}.specialty-lines p{margin:0;display:grid;grid-template-columns:minmax(180px,.8fr) 1.4fr;gap:30px;padding:18px 0;border-bottom:1px solid var(--line)}.specialty-lines span{color:var(--muted)}
.chapter-outro{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;background:var(--cyan-soft);border-top:0;margin-bottom:70px;padding-top:48px;padding-bottom:48px}.chapter-outro>div>p:first-child{font-size:12px;text-transform:uppercase;letter-spacing:.18em;color:var(--cyan);font-weight:800}.chapter-outro>div>p:last-child{max-width:700px;color:var(--muted);margin-bottom:0}.chapter-outro>a{padding:14px 18px;border:2px solid var(--ink);font-weight:800}.chapter-outro>a:hover{background:var(--ink);color:var(--white)}
.footerbar{max-width:1180px;margin:0 auto;padding:26px 28px 34px;display:flex;justify-content:space-between;gap:28px;border-top:1px solid var(--line)}.footerbar nav{display:flex;gap:22px}.footerbar a:hover{text-decoration:underline}

.home-view{background:#f3f8fa}.compact-head{border-bottom:4px solid var(--cyan)}.machine-sheet{max-width:1180px;margin:0 auto;padding:64px 28px 70px}.machine-lead{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(230px,.55fr);column-gap:70px;align-items:end;padding-bottom:58px}.machine-lead>.eyebrow{grid-column:1}.machine-lead h1{grid-column:1}.machine-lead>p:not(.eyebrow){grid-column:1;color:var(--muted);font-size:19px;max-width:760px;margin-bottom:0}.machine-lead aside{grid-column:2;grid-row:1/5;display:grid;border-top:4px solid var(--accent)}.machine-lead aside>*{padding:11px 0;border-bottom:1px solid var(--line)}.machine-lead aside strong{font-size:24px}.machine-lead aside span{color:var(--muted)}
.machine-lines{border-top:1px solid var(--line)}.machine-lines>header{display:grid;grid-template-columns:180px 1fr;gap:25px;padding:46px 0 28px}.machine-lines>header h2{margin:0}.machine-lines article{display:grid;grid-template-columns:100px minmax(170px,.45fr) minmax(0,1.2fr) minmax(270px,.8fr);gap:26px;padding:30px 0;border-top:1px solid var(--line);align-items:start}.machine-code{color:var(--accent);font-weight:800;font-size:12px;letter-spacing:.16em}.machine-lines article p{margin:0;color:var(--muted)}.machine-lines article dl{margin:0}.machine-lines article dl div{display:grid;grid-template-columns:62px 1fr;gap:12px;border-bottom:1px solid var(--line);padding:6px 0}.machine-lines article dt{font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);font-weight:800}.machine-lines article dd{margin:0;font-size:14px}
.repair-spectrum{margin-top:70px;padding:46px 0;border-top:4px solid var(--accent);display:grid;grid-template-columns:280px 1fr;gap:50px}.spectrum-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.spectrum-grid div{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.spectrum-grid span{display:block;color:var(--accent);font-size:11px;font-weight:800;margin-bottom:18px}.spectrum-grid strong{display:block;font-size:19px;margin-bottom:5px}.spectrum-grid p{margin:0;color:var(--muted)}
.fault-ledger{margin-top:70px;padding-top:46px;border-top:1px solid var(--line);display:grid;grid-template-columns:280px 1fr;gap:50px}.fault-ledger ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.fault-ledger li{display:grid;grid-template-columns:220px 1fr;gap:25px;padding:16px 0;border-bottom:1px solid var(--line)}.fault-ledger li span{color:var(--muted)}
.machine-return{margin-top:70px;padding:32px 0;border-top:4px solid var(--cyan);display:flex;justify-content:space-between;gap:40px;align-items:center}.machine-return p{margin:0;color:var(--muted);max-width:720px}.machine-return a{font-weight:800;border-bottom:2px solid var(--accent)}
@media (max-width:900px){.hero-shell,.machine-lead{grid-template-columns:1fr;gap:38px}.hero-facts{max-width:520px}.chapter-head,.chapter-head.narrow{grid-template-columns:140px 1fr}.chapter-head>p:last-child{grid-column:2}.local-medium,.local-compact,.local-minor{padding-left:0!important}.machine-lead aside{grid-column:1;grid-row:auto;max-width:520px}.machine-lines article{grid-template-columns:70px 1fr}.machine-lines article p,.machine-lines article dl{grid-column:2}.repair-spectrum,.fault-ledger{grid-template-columns:1fr}.device-stack{grid-template-columns:1fr}}
@media (max-width:680px){body{font-size:16px}.topbar{padding:18px 20px;align-items:flex-start;flex-direction:column}.topnav{gap:16px}.hero-shell{padding:50px 20px 26px}.chapter{padding:64px 20px}.chapter-head,.chapter-head.narrow{grid-template-columns:1fr;gap:8px}.chapter-head>p:last-child{grid-column:1}.local-register li,.local-compact,.local-minor{grid-template-columns:52px 1fr!important;gap:14px}.local-major h3{font-size:22px}.device-stack article{padding:22px;grid-template-columns:36px 1fr}.fault-table div{grid-template-columns:1fr;gap:5px;padding:17px 0}.specialty-lines p{grid-template-columns:1fr;gap:4px}.chapter-outro{grid-template-columns:1fr;align-items:start;margin-bottom:45px}.footerbar{padding:24px 20px;flex-direction:column}.machine-sheet{padding:48px 20px 60px}.machine-lines>header{grid-template-columns:1fr;gap:8px}.machine-lines article{grid-template-columns:1fr;gap:9px}.machine-lines article p,.machine-lines article dl{grid-column:1}.spectrum-grid{grid-template-columns:1fr}.fault-ledger li{grid-template-columns:1fr;gap:4px}.machine-return{align-items:flex-start;flex-direction:column}}