:root {
  --bg: #f4f6f8;
  --paper: #ffffff;
  --ink: #14181f;
  --ink-soft: #5a6470;
  --rule: #d8dde3;
  --primary: #1d6f8e;
  --primary-dark: #0e4a62;
  --teal: #2aa39c;
  --warning: #d97706;
  --grid: rgba(29, 111, 142, 0.06);
  --mono: 'JetBrains Mono', 'Iosevka', 'Menlo', 'SF Mono', 'Roboto Mono', monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--sans); background: var(--bg); color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--teal); }

/* Status bar */
.status-bar { background: var(--ink); color: rgba(255,255,255,0.85); padding: 8px 0; font-family: var(--mono); font-size: 12px; }
.status-bar .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.status-bar .ok { color: var(--teal); }
.status-bar .ok::before { content: '● '; }

/* Header — technical */
header.cad { background: var(--paper); border-bottom: 1px solid var(--rule); padding: 18px 0; }
header.cad .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.brand-cad { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-icon-cad { width: 34px; height: 34px; background: var(--primary); display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 1px; padding: 4px; }
.brand-icon-cad span { background: var(--paper); }
.brand-icon-cad span:nth-child(2) { background: var(--teal); }
.brand-cad .brand { font-family: var(--sans); font-size: 19px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.brand-cad .brand small { display: block; font-family: var(--mono); font-size: 10px; font-weight: 400; color: var(--ink-soft); letter-spacing: 0.02em; margin-top: 2px; }
header.cad nav a { color: var(--ink-soft); text-decoration: none; margin-left: 24px; font-size: 13px; font-weight: 600; }
header.cad nav a:hover { color: var(--primary); }

/* Hero — technical metadata layout */
.cad-hero { padding: 64px 0 56px; background: var(--paper); border-bottom: 1px solid var(--rule); position: relative; overflow: hidden; }
.cad-hero::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 32px 32px; pointer-events: none; }
.cad-hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 2fr 1fr; gap: 56px; align-items: center; }
.cad-hero .eyebrow { font-family: var(--mono); font-size: 11px; color: var(--teal); letter-spacing: 0.08em; margin-bottom: 14px; }
.cad-hero h1 { font-family: var(--sans); font-size: 48px; line-height: 1.1; color: var(--ink); margin-bottom: 18px; font-weight: 700; letter-spacing: -0.02em; max-width: 18ch; }
.cad-hero h1 span { color: var(--primary); }
.cad-hero .sub { font-size: 17px; color: var(--ink-soft); max-width: 56ch; line-height: 1.7; margin-bottom: 24px; }
.btn-print { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; background: var(--primary); color: var(--paper); text-decoration: none; font-size: 14px; font-weight: 700; border-radius: 4px; transition: background 0.15s; }
.btn-print:hover { background: var(--primary-dark); color: var(--paper); }
.btn-print::before { content: '↓'; font-family: var(--mono); }
.spec-panel { background: var(--ink); color: var(--paper); padding: 24px; border-radius: 6px; font-family: var(--mono); font-size: 12px; line-height: 1.9; }
.spec-panel .header { color: var(--teal); margin-bottom: 12px; font-size: 11px; letter-spacing: 0.06em; }
.spec-panel .row { display: flex; justify-content: space-between; }
.spec-panel .row .key { color: rgba(255,255,255,0.6); }
.spec-panel .row .val { color: var(--paper); }

/* Catalogue table */
.catalogue { padding: 72px 0; }
.section-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.section-eyebrow { font-family: var(--mono); font-size: 11px; color: var(--teal); letter-spacing: 0.06em; margin-bottom: 6px; }
.section-title { font-family: var(--sans); font-size: 28px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.section-meta { font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
.catalogue-table { background: var(--paper); border: 1px solid var(--rule); border-radius: 6px; overflow: hidden; }
.cat-row { display: grid; grid-template-columns: 60px 2fr 1fr 1fr 90px; gap: 16px; padding: 18px 22px; border-bottom: 1px solid var(--rule); align-items: center; font-size: 14px; }
.cat-row:last-child { border-bottom: none; }
.cat-row:nth-child(even) { background: var(--bg); }
.cat-row.head { background: var(--ink); color: rgba(255,255,255,0.85); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; padding: 12px 22px; }
.cat-thumb { width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--teal)); border-radius: 4px; position: relative; }
.cat-thumb::after { content: ''; position: absolute; inset: 8px; border: 2px solid var(--paper); border-radius: 50%; }
.cat-thumb.sq::after { border-radius: 0; }
.cat-thumb.tri::after { border: none; background: var(--paper); clip-path: polygon(50% 0%, 0% 100%, 100% 100%); }
.cat-title { font-weight: 600; }
.cat-title small { display: block; color: var(--ink-soft); font-size: 12px; margin-top: 2px; font-weight: 400; }
.cat-spec { font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
.cat-price { font-family: var(--mono); font-size: 14px; color: var(--primary); font-weight: 700; }
.cat-action { text-align: right; }
.cat-action a { font-family: var(--mono); font-size: 11px; color: var(--teal); letter-spacing: 0.08em; text-transform: uppercase; }

/* Test feature band */
.test-band { background: var(--ink); color: var(--paper); padding: 64px 0; }
.test-band .section-eyebrow { color: var(--warning); }
.test-band .section-title { color: var(--paper); }
.test-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 28px; }
.test-step { padding: 24px; background: rgba(255,255,255,0.04); border-radius: 6px; border: 1px solid rgba(255,255,255,0.1); }
.test-step .num { font-family: var(--mono); font-size: 11px; color: var(--warning); letter-spacing: 0.1em; margin-bottom: 12px; }
.test-step h4 { font-family: var(--sans); font-size: 16px; color: var(--paper); font-weight: 700; margin-bottom: 8px; }
.test-step p { color: rgba(255,255,255,0.7); font-size: 13px; line-height: 1.6; }

/* Printer compatibility */
.compat-section { padding: 64px 0; }
.printer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-top: 24px; }
.printer-pill { background: var(--paper); border: 1px solid var(--rule); padding: 14px 18px; border-radius: 4px; font-family: var(--mono); font-size: 13px; }
.printer-pill .name { color: var(--ink); font-weight: 700; }
.printer-pill .status { font-size: 11px; color: var(--teal); margin-top: 4px; letter-spacing: 0.06em; }

/* Contact */
.contact-cad { padding: 64px 0; background: var(--paper); border-top: 1px solid var(--rule); text-align: center; }
.contact-cad h2 { font-family: var(--sans); font-size: 28px; font-weight: 700; color: var(--ink); margin-bottom: 16px; letter-spacing: -0.01em; }
.contact-cad p { color: var(--ink-soft); max-width: 500px; margin: 0 auto 20px; }

/* Article pages */
article.page { padding: 64px 0; max-width: 760px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
article.page .breadcrumb { font-family: var(--mono); font-size: 11px; color: var(--ink-soft); margin-bottom: 16px; letter-spacing: 0.04em; }
article.page .breadcrumb a { color: var(--ink-soft); }
article.page h1 { font-size: 36px; font-weight: 700; color: var(--ink); margin-bottom: 24px; line-height: 1.15; letter-spacing: -0.02em; }
article.page h2 { font-size: 20px; font-weight: 700; color: var(--ink); margin-top: 36px; margin-bottom: 12px; }
article.page p { margin-bottom: 16px; font-size: 16px; line-height: 1.75; }
article.page ul, article.page ol { margin-bottom: 18px; padding-left: 24px; }
article.page li { margin-bottom: 8px; }

/* Fallback for inner pages */
body > header:not([class]) { padding: 18px 0; border-bottom: 1px solid var(--rule); background: var(--paper); }
body > header:not([class]) .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
body > header:not([class]) .brand { display: inline-flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; color: var(--ink); text-decoration: none; }
body > header:not([class]) .brand-icon { width: 28px; height: 28px; flex-shrink: 0; color: var(--primary); }
body > header:not([class]) nav { display: flex; gap: 22px; flex-wrap: wrap; }
body > header:not([class]) nav a { font-size: 13px; color: var(--ink-soft); text-decoration: none; font-weight: 600; }

/* Footer */
footer { background: var(--ink); color: rgba(255,255,255,0.7); padding: 48px 0 24px; font-family: var(--mono); }
footer .container { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; margin-bottom: 24px; font-size: 13px; }
footer h5 { font-family: var(--sans); font-size: 14px; font-weight: 700; color: var(--teal); margin-bottom: 12px; letter-spacing: 0; }
footer p, footer a { font-size: 12px; color: rgba(255,255,255,0.65); line-height: 1.8; text-decoration: none; display: block; margin-bottom: 2px; }
footer a:hover { color: var(--teal); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 16px; text-align: center; font-size: 11px; color: rgba(255,255,255,0.5); letter-spacing: 0.08em; }

@media (max-width: 800px) {
  .cad-hero .container { grid-template-columns: 1fr; gap: 28px; }
  .cad-hero h1 { font-size: 32px; }
  .cat-row { grid-template-columns: 40px 1fr 90px; gap: 12px; padding: 12px 14px; }
  .cat-spec, .cat-action { display: none; }
  .test-row { grid-template-columns: 1fr 1fr; gap: 12px; }
  header.cad nav a { margin-left: 12px; }
  footer .container { grid-template-columns: 1fr; gap: 24px; }
  article.page h1 { font-size: 28px; }
}