@font-face { font-family: 'IBM Plex Sans'; src: url('assets/fonts/IBMPlexSans-Regular.woff2') format('woff2'); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: 'IBM Plex Sans'; src: url('assets/fonts/IBMPlexSans-SemiBold.woff2') format('woff2'); font-style: normal; font-weight: 600; font-display: swap; }
* { box-sizing: border-box; }
:root {
  --page: #f7f5ee; --surface: #fbfaf6; --text: #202923; --muted: #526056;
  --accent: #164d3b; --line: #d7dcd4; --display: Georgia, 'Times New Roman', serif;
  --radius: 6px; --error: #a82520; --body: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
}
html { scroll-behavior: smooth; background: var(--page); color: var(--text); font: 17px/1.6 var(--body); }
body { margin: 0; }
a { color: var(--accent); text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
p { margin: 0 0 16px; }
h1, h2, h3 { margin: 0; font-weight: 500; line-height: 1.15; }
h1, h2 { font-family: var(--display); }
h1 { font-size: clamp(38px, 4.6vw, 58px); letter-spacing: -.035em; max-width: 620px; text-wrap: balance; }
h2 { font-size: clamp(28px, 3vw, 38px); letter-spacing: -.025em; text-wrap: balance; }
h3 { font-size: 21px; margin-bottom: 14px; font-weight: 600; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
.container { width: min(100%, 1200px); margin-inline: auto; padding-inline: 32px; }
.skip-link { position: absolute; top: -80px; left: 20px; z-index: 10; background: var(--text); color: var(--page); padding: 10px 16px; }
.skip-link:focus { top: 10px; }
.site-header { border-bottom: 1px solid var(--line); background: var(--page); }
.nav-wrapper, .header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 76px; }
.brand-link { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; white-space: nowrap; }
.brand-name { font-family: var(--display); font-size: 25px; font-weight: 600; }
.brand-mark { display: grid; place-items: center; background: var(--accent); color: var(--page); width: 30px; height: 32px; border-radius: 3px; font-family: Georgia, serif; font-size: 23px; }
.brand-logo-mark { width: 26px; height: 26px; flex-shrink: 0; }
.site-nav, .header-nav { display: flex; align-items: center; gap: 24px; font-size: 13px; }
.site-nav a, .nav-link { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .nav-link:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 20px; border: 1px solid var(--accent); border-radius: var(--radius); font: 600 15px/1.4 var(--body); text-decoration: none; cursor: pointer; color: var(--accent); background: transparent; }
.btn-primary, .btn-accent { background: var(--accent); color: #fdfdfb; }
.btn-secondary, .btn-outline { border-color: var(--line); color: var(--text); background: transparent; }
.btn:hover { filter: brightness(.94); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-sm { min-height: 40px; padding: 8px 15px; font-size: 13px; }
.section { padding-block: 76px; }
.hero-section, .hero { padding-block: 60px 68px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.hero-lead, .lead { font-size: 18px; color: var(--muted); max-width: 50ch; margin-top: 24px; }
.hero-cta-group, .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-panel, .hero-schematic-wrap { min-width: 0; margin: 0; }
.schematic-frame img, .hero-schematic-wrap img { display: block; width: 100%; height: auto; }
.schematic-caption { font-size: 13px; color: var(--muted); line-height: 1.5; margin: 16px 0 0; max-width: 58ch; }
.section-header, .section-head { margin-bottom: 36px; max-width: 720px; }
.section-subtitle, .section-head > p { color: var(--muted); margin-top: 18px; }
.modules-grid, .assistance-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.module-card { border-top: 1px solid var(--line); padding-top: 24px; }
.module-card p, .assistance-pillar p { color: var(--muted); max-width: 45ch; margin: 0; }
.steps-grid, .workflow-grid { display: flex; flex-direction: column; }
.step-card { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: baseline; padding-block: 22px; border-top: 1px solid var(--line); }
.step-card h3, .step-card p { margin: 0; }
.step-card p { color: var(--muted); max-width: 54ch; }
#assistance { background: #eef1eb; }
.usage-section, .deployment-section { padding-block: 48px; border-block: 1px solid var(--line); }
.usage-line { display: flex; gap: 56px; align-items: baseline; }
.usage-line h2 { font-size: 28px; flex-shrink: 0; }
.usage-line p { color: var(--muted); margin: 0; }
.capabilities-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 38px 80px; }
.cap-card p { color: var(--muted); max-width: 42ch; margin: 0; }
.deployment-line { max-width: 920px; }
.deployment-line > p { margin: 24px 0 0; color: var(--muted); max-width: 66ch; }
.contact-grid, .enquiry-layout { display: grid; grid-template-columns: 1fr 1fr; align-items: start; gap: 48px; }
.form-panel, .enquiry-form-card, .draft-panel, .draft-card { min-width: 0; }
.contact-disclosure, .form-disclosure { font-size: 13px; line-height: 1.6; color: var(--muted); margin: 0 0 24px; }
.form-disclosure { margin-top: 20px; }
.form-group { margin-bottom: 22px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.label-hint, .field-hint { font-weight: 400; color: var(--muted); font-size: 13px; }
.field-hint { display: block; margin-bottom: 9px; }
input, select, textarea { display: block; width: 100%; padding: 12px 14px; font: inherit; font-size: 16px; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); min-height: 48px; }
textarea { min-height: 130px; resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 1; }
[aria-invalid=true] { border-color: var(--error); }
.field-error { display: block; color: var(--error); font-size: 13px; margin-top: 6px; }
.field-error:empty { display: none; }
.draft-panel, .draft-card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); }
.draft-panel-header, .draft-header { margin-bottom: 18px; }
.draft-explanation { font-size: 14px; color: var(--muted); margin-bottom: 20px; }
.draft-box, .draft-display { margin: 0 0 24px; white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/1.7 ui-monospace, Menlo, monospace; max-height: 340px; overflow-y: auto; }
.draft-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.mailto-box { margin-top: 16px; }
.draft-feedback, .copy-feedback { margin-top: 16px; font-size: 13px; color: var(--muted); }
.draft-feedback.error { color: var(--error); }
.site-footer { padding-block: 44px 24px; border-top: 1px solid var(--line); }
.footer-grid, .footer-top { display: flex; justify-content: space-between; gap: 56px; }
.footer-brand-col, .footer-top > div { max-width: 420px; }
.footer-brand-col > p, .footer-disclaimer { color: var(--muted); font-size: 14px; margin: 18px 0 0; }
.footer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 30px; font-size: 13px; }
.footer-nav a { color: var(--muted); text-decoration: none; }
.footer-product-name { font-size: 17px; font-weight: 600; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 32px; color: var(--muted); font-size: 12px; }
.footer-bottom .footer-disclaimer { margin: 0; }
section[id], main[id] { scroll-margin-top: 24px; }
@media (max-width: 1100px) {
  .site-nav { gap: 14px; font-size: 12px; }
  .hero-grid { gap: 36px; }
  .nav-actions { display: none; }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-panel, .hero-schematic-wrap { max-width: 650px; }
  h1 { max-width: 660px; }
  .site-nav, .header-nav { gap: 14px; }
  .header-inner { align-items: flex-start; flex-direction: column; padding-block: 18px; gap: 18px; }
  .contact-grid, .enquiry-layout { grid-template-columns: 1fr; max-width: 680px; }
  .modules-grid, .assistance-grid { gap: 32px; }
}
@media (max-width: 640px) {
  .container { padding-inline: 20px; }
  .section { padding-block: 48px; }
  .hero-section, .hero { padding-block: 36px 48px; }
  .nav-wrapper { flex-wrap: wrap; padding-block: 18px; gap: 14px; }
  .site-nav, .header-nav { flex-wrap: wrap; width: 100%; font-size: 12px; gap: 12px 18px; }
  .header-nav .btn { min-height: 38px; }
  .brand-link { font-size: 15px; }
  .modules-grid, .assistance-grid, .capabilities-grid { grid-template-columns: 1fr; gap: 28px; }
  .step-card { grid-template-columns: 1fr; gap: 10px; }
  .usage-line, .footer-grid, .footer-top { flex-direction: column; gap: 18px; }
  .hero-lead, .lead { font-size: 17px; }
  .hero-cta-group, .hero-actions { gap: 10px; }
  .btn { font-size: 13px; padding-inline: 16px; }
  .footer-nav { gap: 10px 18px; }
  .draft-panel, .draft-card { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Ventilux uses a technical sans-serif and square geometry. */
:root { --page:#f3f4f2; --surface:#fafbf9; --text:#242a2d; --muted:#59656c; --accent:#b84618; --line:#d5d9d8; --display:'IBM Plex Sans','Helvetica Neue',Arial,sans-serif; --radius:2px; }
.hero-grid { grid-template-columns: .9fr 1.1fr; }
.hero-schematic-wrap { padding: 24px 20px; border: 1px solid var(--line); background: var(--surface); }
h1 { font-weight: 600; }
h2 { font-weight: 500; }
#capabilities { background:#eceeeb; }
@media (max-width:900px) { .hero-grid { grid-template-columns:1fr; } }
@media (max-width:640px) { .hero-schematic-wrap { padding:16px 12px; } }

/* Reference-informed rhythm: a short introduction beside the product details. */
.editorial-layout { display: grid; grid-template-columns: .85fr 1.65fr; gap: 80px; align-items: start; }
.editorial-layout > .section-header, .editorial-layout > .section-head { margin: 0; max-width: 360px; }
.editorial-layout .modules-grid, .editorial-layout .assistance-grid { gap: 40px; }
.site-nav, .header-nav { font-size: 14px; }
.site-nav a, .nav-link { padding-block: 9px; }
.hero-cta-group .btn-secondary, .hero-actions .btn-outline { border-color: transparent; padding-inline: 6px; text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 6px; }
.hero-cta-group .btn-secondary:hover, .hero-actions .btn-outline:hover { text-decoration-color: var(--text); }
.section { padding-block: 84px; }
.hero-lead, .lead { font-size: 20px; line-height: 1.5; }
.editorial-layout .step-card { grid-template-columns: 1fr; gap: 10px; padding-block: 24px; }
.editorial-layout .step-card:first-child { padding-top: 0; border-top: 0; }
@media (max-width: 1100px) {
  .editorial-layout { gap: 48px; grid-template-columns: 1fr 1.6fr; }
  .site-nav, .header-nav { gap: 16px; font-size: 13px; }
}
@media (max-width: 900px) {
  .editorial-layout { grid-template-columns: 1fr; gap: 32px; }
  .editorial-layout > .section-header, .editorial-layout > .section-head { max-width: 620px; }
  .section { padding-block: 64px; }
}
@media (max-width: 640px) {
  .section { padding-block: 48px; }
  .site-nav, .header-nav { gap: 2px 18px; font-size: 13px; }
  .hero-lead, .lead { font-size: 18px; }
  .editorial-layout .modules-grid, .editorial-layout .assistance-grid { gap: 30px; }
}

/* IBM Plex gives the technical page its own type voice. */
h1 { font-size: clamp(40px, 4.7vw, 60px); line-height: 1.06; letter-spacing: -.04em; }
.hero-schematic-wrap { border: 0; border-top: 2px solid var(--text); border-bottom: 1px solid var(--line); padding: 28px 20px 24px; }
#workflow .editorial-layout { grid-template-columns: 1fr 1.2fr; }
#capabilities .capabilities-grid { column-gap: 48px; }
.cap-card { padding-top: 20px; border-top: 1px solid var(--line); }
@media (max-width: 900px) { #workflow .editorial-layout { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .hero-schematic-wrap { padding: 18px 0; } }

/* Impeccable amplification: show the mechanism at the scale of the page. */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.hero-intro { display: grid; grid-template-columns: 1.4fr 1fr; align-items: end; gap: 64px; margin-bottom: 48px; }
.hero-intro h1 { max-width: 760px; font-size: clamp(44px, 5.9vw, 76px); line-height: 1.02; letter-spacing: -.035em; font-weight: 600; }
.hero-intro .hero-lead, .hero-intro .lead { margin: 0; font-size: 19px; line-height: 1.55; max-width: 36ch; }
.hero-intro .hero-cta-group, .hero-intro .hero-actions { margin-top: 24px; }
.example-disclosure { font-size: 13px; font-weight: 400; }
.amount { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.workflow-example, .cutting-example { margin: 0; }
.workflow-example table, .cutting-example table { width: 100%; border-collapse: collapse; font-size: 15px; }
.workflow-example th, .workflow-example td, .cutting-example th, .cutting-example td { padding: 15px 0; border-bottom: 1px solid var(--line); }
.workflow-example thead th, .cutting-example thead th { font-size: 13px; font-weight: 400; color: var(--muted); text-align: left; }
.workflow-example tbody th, .cutting-example tbody th { text-align: left; font-weight: 600; }
.workflow-example thead th.amount, .cutting-example thead th.amount { text-align: right; }
.workflow-example figcaption, .cutting-example figcaption { font-size: 13px; line-height: 1.55; padding-top: 16px; color: var(--muted); }
@media (max-width: 900px) {
  .hero-intro { grid-template-columns: 1fr; gap: 28px; margin-bottom: 36px; }
  .hero-intro h1 { max-width: 760px; }
  .hero-intro .hero-lead, .hero-intro .lead { max-width: 56ch; }
}
@media (max-width: 640px) {
  .hero-intro h1 { font-size: clamp(42px, 11vw, 62px); }
  .hero-intro .hero-lead, .hero-intro .lead { font-size: 18px; }
  .hero-intro { gap: 24px; }
}

.hero { padding-block: 56px 52px; }
.hero-intro { grid-template-columns: 1.25fr 1fr; }
.cutting-example { background: var(--surface); padding: 28px 32px 20px; border-top: 3px solid var(--accent); }
.cutting-example-header { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; padding-bottom: 22px; }
.cutting-example-header h2 { font: 600 26px/1.2 var(--body); letter-spacing: -.02em; }
.cutting-example-layout { display: grid; grid-template-columns: 240px 1fr; gap: 60px; align-items: center; }
.cutting-order h3 { font-size: 16px; margin: 0 0 8px; }
.cutting-order p { margin: 28px 0 0; color: var(--muted); font-size: 14px; }
.cutting-order p strong { display: block; font-size: 24px; color: var(--text); font-weight: 600; margin-top: 4px; }
.cutting-plan { min-width: 0; }
.cutting-plan img { display: block; width: 100%; height: auto; }
.cutting-result { display: flex; justify-content: space-between; gap: 28px; padding-top: 12px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.cutting-result strong { display: block; color: var(--text); font-weight: 600; font-size: 20px; font-variant-numeric: tabular-nums; }
.cutting-example figcaption { margin-top: 20px; border-top: 1px solid var(--line); }
#workflow { border-top: 1px solid var(--line); }
#workflow .editorial-layout { grid-template-columns: 1fr 1.2fr; }
#capabilities { background: var(--text); color: var(--surface); }
#capabilities .cap-card { border-top-color: #53605e; }
#capabilities .cap-card p { color: #dae1dc; }
#capabilities h2 { color: var(--surface); }
#enquiry { background: var(--surface); }
@media (max-width: 900px) {
  .hero-intro { grid-template-columns: 1fr; }
  .cutting-example-layout { grid-template-columns: 190px 1fr; gap: 28px; }
  #workflow .editorial-layout { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero { padding-block: 38px 36px; }
  .cutting-example { padding: 20px 16px 16px; }
  .cutting-example-header { flex-direction: column; gap: 8px; }
  .cutting-example-header h2 { font-size: 24px; }
  .cutting-example-layout { grid-template-columns: 1fr; gap: 24px; }
  .cutting-order { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; align-items: start; }
  .cutting-order h3 { grid-column: 1; }
  .cutting-order table { grid-column: 1; }
  .cutting-order p { grid-column: 2; grid-row: 1 / span 2; margin: 0; padding-top: 3px; }
  .cutting-result { gap: 16px; font-size: 13px; }
  .cutting-result strong { font-size: 18px; }
}