:root {
  --paper: #e9e5dc;
  --paper-deep: #ddd7cb;
  --ink: #2d211c;
  --muted: #70675f;
  --petrol: #245d62;
  --petrol-dark: #163f43;
  --mustard: #c19a36;
  --line: rgba(45, 33, 28, 0.23);
  --line-strong: rgba(45, 33, 28, 0.55);
  --max: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --section: clamp(5rem, 10vw, 9rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--petrol); }
a:focus-visible { outline: 2px solid var(--mustard); outline-offset: 4px; }
p, h1, h2, h3, figure { margin-top: 0; }
h1, h2, h3 { line-height: 1.05; letter-spacing: -0.035em; }
h1 { font-size: clamp(3rem, 7vw, 7rem); font-weight: 600; }
h2 { font-size: clamp(2.2rem, 4.8vw, 4.75rem); font-weight: 550; }
h3 { font-size: clamp(1.3rem, 2vw, 1.8rem); font-weight: 600; }
.shell { width: min(calc(100% - (2 * var(--gutter))), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 100; padding: 0.7rem 1rem; background: var(--ink); color: var(--paper); }
.skip-link:focus { top: 1rem; }
.eyebrow, .technical-label {
  font-size: 0.69rem;
  line-height: 1.4;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 700;
}
.eyebrow { color: var(--petrol); }
.eyebrow span { margin-right: 1.2rem; color: var(--ink); }
.technical-label { color: var(--muted); }

.site-header {
  width: min(calc(100% - (2 * var(--gutter))), var(--max));
  margin-inline: auto;
  min-height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line-strong);
}
.brand { display: inline-flex; align-items: center; gap: 0.75rem; font-size: 1.02rem; font-weight: 700; text-decoration: none; letter-spacing: -0.02em; }
.brand-mark { width: 1.9rem; height: 0.78rem; background: repeating-linear-gradient(90deg, var(--mustard) 0 2px, transparent 2px 5px); border-block: 1px solid var(--ink); }
.site-nav { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2.4rem); font-size: 0.78rem; font-weight: 700; }
.site-nav a { text-decoration: none; padding: 0.55rem 0; border-bottom: 2px solid transparent; }
.site-nav a[aria-current="page"] { color: var(--petrol); border-color: var(--mustard); }

.hero { padding-top: clamp(3.5rem, 7vw, 6.5rem); display: grid; grid-template-columns: minmax(0, 4fr) minmax(14rem, 1fr); column-gap: clamp(2rem, 8vw, 8rem); }
.hero-copy { max-width: 55rem; }
.hero h1 { max-width: 10ch; margin: 1.2rem 0 2rem; }
.hero-lede { max-width: 44rem; font-size: clamp(1.15rem, 2vw, 1.5rem); line-height: 1.52; }
.hero-index { align-self: end; padding-bottom: 1.2rem; border-top: 1px solid var(--line-strong); }
.hero-index ol { list-style: none; margin: 0.8rem 0 0; padding: 0; }
.hero-index a { display: grid; grid-template-columns: 2.1rem 1fr; padding: 0.52rem 0; border-bottom: 1px solid var(--line); text-decoration: none; font-size: 0.82rem; }
.hero-index a span { color: var(--mustard); font-variant-numeric: tabular-nums; }
.hero-figure { grid-column: 1 / -1; margin: clamp(2.7rem, 6vw, 5rem) 0 0; }
.hero-figure img { width: 100%; aspect-ratio: 5 / 3; object-fit: cover; filter: saturate(0.72) contrast(1.04); }
figcaption { display: flex; justify-content: space-between; gap: 1rem; padding-top: 0.7rem; color: var(--muted); font-size: 0.68rem; line-height: 1.45; text-transform: uppercase; letter-spacing: 0.08em; }

.ruled { border-top: 1px solid var(--line-strong); }
.section-heading h2 { margin: 0.8rem 0 0; max-width: 12ch; }
.room-section { position: relative; margin-top: var(--section); padding-top: 2rem; display: grid; grid-template-columns: 0.7fr 2.2fr 2fr; gap: clamp(1.5rem, 5vw, 5rem); }
.section-number { font-size: clamp(4rem, 8vw, 8rem); line-height: 0.78; color: var(--paper-deep); font-weight: 700; letter-spacing: -0.08em; }
.two-column-copy { grid-column: 2 / 4; display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 6vw, 6rem); margin-top: 1.5rem; }
.prose p { max-width: 39rem; }
.field-note { grid-column: 3; margin-top: 1rem; padding: 1.3rem 0 0 1.4rem; border-top: 4px solid var(--mustard); border-left: 1px solid var(--line-strong); }
.field-note p { margin: 0.75rem 0 0; font-size: 0.89rem; }

.mic-section { margin-top: var(--section); }
.wide-heading { display: grid; grid-template-columns: 1fr 3fr; align-items: start; gap: 2rem; }
.wide-heading h2 { max-width: 17ch; }
.measure-grid { display: grid; grid-template-columns: 1.15fr 1.15fr 0.8fr; margin-top: clamp(3rem, 6vw, 6rem); border-block: 1px solid var(--line-strong); }
.measure-block { min-height: 23rem; padding: 2rem clamp(1.2rem, 3vw, 3rem) 2.5rem 0; }
.measure-block + .measure-block { padding-left: clamp(1.2rem, 3vw, 3rem); border-left: 1px solid var(--line-strong); }
.measure { display: block; margin-bottom: 5rem; font-size: clamp(3.1rem, 6vw, 6rem); line-height: 0.9; color: var(--petrol); letter-spacing: -0.08em; font-weight: 600; }
.measure small { font-size: 0.22em; letter-spacing: 0; text-transform: uppercase; }
.measure-block p { max-width: 30rem; }
.accent-block { background: var(--petrol); color: #f2eee5; padding-right: clamp(1.2rem, 3vw, 3rem); }
.accent-block .technical-label { color: #d7cfae; display: block; margin-bottom: 5.35rem; }

.noise-section { margin-top: var(--section); padding-top: 2rem; }
.noise-layout { margin-top: 3rem; display: grid; grid-template-columns: 1.45fr 0.75fr 1fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: start; }
.intro-copy { max-width: 43rem; font-size: 1.18rem; }
.checklist { list-style: none; margin: 2rem 0 0; padding: 0; border-top: 1px solid var(--line-strong); }
.checklist li { padding: 1rem 0; display: grid; grid-template-columns: 7rem 1fr; gap: 1rem; border-bottom: 1px solid var(--line); }
.checklist span { color: var(--petrol); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.detail-figure { margin: 0; }
.detail-figure img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: saturate(0.65) sepia(0.05); }
.detail-figure figcaption { display: block; }
.monitoring-copy { padding-top: 2rem; border-top: 4px solid var(--mustard); }
.monitoring-copy h3 { margin: 0.7rem 0 1.5rem; }

.cable-section { margin-top: var(--section); }
.cable-diagram { position: relative; margin-top: 4rem; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line-strong); }
.cable-diagram::before { content: ""; position: absolute; top: -4px; left: 0; width: 66.666%; height: 7px; background: repeating-linear-gradient(90deg, var(--mustard) 0 5px, transparent 5px 11px); }
.cable-diagram > div { padding: 2rem clamp(1.2rem, 3vw, 3rem) 2rem 0; }
.cable-diagram > div + div { padding-left: clamp(1.2rem, 3vw, 3rem); border-left: 1px solid var(--line-strong); }
.cable-diagram span { color: var(--petrol); font-size: 0.72rem; font-weight: 700; }
.cable-diagram p { margin: 3rem 0 0; max-width: 25rem; }
.technical-note { margin: 0; padding: 1rem 0; border-block: 1px solid var(--line); color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.06em; }

.test-section { margin-top: var(--section); padding-top: 2rem; }
.test-grid { display: grid; grid-template-columns: 1.8fr 1fr; gap: clamp(2rem, 8vw, 8rem); margin-top: 3rem; }
.comfort-panel { padding: 2rem; background: var(--paper-deep); border-top: 5px solid var(--petrol); }
.comfort-panel ul { margin: 1.3rem 0 0; padding-left: 1.1rem; }
.comfort-panel li { margin-bottom: 0.75rem; }

.final-section { margin-top: var(--section); background: var(--petrol-dark); color: #f0ece3; }
.final-inner { padding-block: clamp(4rem, 8vw, 7rem); display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(3rem, 10vw, 9rem); }
.final-section .eyebrow { color: #d5b45b; }
.final-heading h2 { margin: 0.7rem 0 1.8rem; }
.final-heading p:last-child { color: #cec8bd; }
.final-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,0.4); }
.final-list li { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.05rem 0; border-bottom: 1px solid rgba(255,255,255,0.2); }
.final-list span { color: #d5b45b; font-size: 0.76rem; font-weight: 700; }

.site-footer { background: #261d19; color: #e9e5dc; }
.footer-grid { display: grid; grid-template-columns: 1.1fr 1.3fr 1fr; }
.footer-grid > div { min-height: 15rem; padding: 2.5rem clamp(1.3rem, 3vw, 3rem) 2rem 0; }
.footer-grid > div + div { padding-left: clamp(1.3rem, 3vw, 3rem); border-left: 1px solid rgba(255,255,255,0.18); }
.footer-name { margin: 3rem 0 0; font-size: clamp(2.5rem, 5vw, 4.8rem); line-height: 1; letter-spacing: -0.06em; }
.footer-about p { max-width: 29rem; color: #bbb4aa; }
.footer-contact { display: flex; flex-direction: column; justify-content: space-between; }
.footer-contact a { font-size: clamp(1rem, 2vw, 1.4rem); color: #f0c85b; overflow-wrap: anywhere; }
.site-footer .eyebrow, .site-footer .technical-label { color: #9bbabd; }
.footer-bottom { padding-block: 1.2rem; display: flex; justify-content: space-between; gap: 2rem; border-top: 1px solid rgba(255,255,255,0.2); color: #aaa39a; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; }
.footer-bottom nav { display: flex; gap: 1.5rem; }

.inner-page .site-header { margin-bottom: 0; }
.legal-main { padding-bottom: var(--section); }
.legal-hero { padding: clamp(4.5rem, 9vw, 9rem) 0 clamp(4rem, 8vw, 7rem); border-bottom: 1px solid var(--line-strong); }
.legal-hero h1 { max-width: 12ch; margin: 1rem 0 2rem; }
.legal-lede { max-width: 48rem; font-size: clamp(1.2rem, 2.2vw, 1.6rem); }
.compact-legal-hero h1 { max-width: 11ch; }
.updated { margin: 2rem 0 0; color: var(--muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.1em; }
.legal-layout { display: grid; grid-template-columns: 0.8fr 2.4fr; gap: clamp(2rem, 8vw, 8rem); padding-top: 3rem; }
.legal-index { position: sticky; top: 2rem; align-self: start; padding-top: 1rem; border-top: 4px solid var(--mustard); }
.legal-index ul { list-style: none; margin: 1rem 0 0; padding: 0; }
.legal-index li { padding: 0.45rem 0; border-bottom: 1px solid var(--line); color: var(--petrol); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; }
.statement-index p { max-width: 17rem; }
.legal-content { max-width: 52rem; }
.legal-content section { padding: 0 0 3.5rem; margin-bottom: 3.5rem; border-bottom: 1px solid var(--line); }
.legal-content h2 { max-width: 18ch; font-size: clamp(2rem, 3.6vw, 3.5rem); }
.legal-content p { max-width: 48rem; }
.contact-strip { padding: 2rem !important; border-top: 5px solid var(--petrol); background: var(--paper-deep); }
.contact-strip h2 { margin-top: 0.8rem; }
.text-link { display: inline-block; margin-top: 1rem; color: var(--petrol); font-size: 1.25rem; font-weight: 700; }
.numbered-sections section { position: relative; padding-left: 5rem; }
.legal-number { position: absolute; left: 0; top: 0.35rem; color: var(--mustard); font-size: 0.77rem; font-weight: 700; letter-spacing: 0.1em; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-index { margin-top: 2rem; max-width: 22rem; }
  .hero-figure { grid-column: 1; }
  .room-section { grid-template-columns: 0.4fr 2fr; }
  .room-section .section-heading { grid-column: 2; }
  .two-column-copy { grid-column: 2; grid-template-columns: 1fr; gap: 0; }
  .field-note { grid-column: 2; }
  .wide-heading { grid-template-columns: 1fr; }
  .measure-grid { grid-template-columns: 1fr 1fr; }
  .accent-block { grid-column: 1 / -1; min-height: auto; }
  .accent-block .technical-label { margin-bottom: 2rem; }
  .noise-layout { grid-template-columns: 1.4fr 0.7fr; }
  .monitoring-copy { grid-column: 1 / -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-contact { grid-column: 1 / -1; min-height: 9rem !important; border-left: 0 !important; border-top: 1px solid rgba(255,255,255,0.18); padding-left: 0 !important; }
}

@media (max-width: 680px) {
  :root { --gutter: 1.1rem; }
  h1 { font-size: clamp(2.75rem, 15vw, 4.2rem); }
  .site-header { min-height: auto; padding: 1.2rem 0; align-items: flex-start; }
  .site-nav { display: grid; grid-template-columns: repeat(2, auto); gap: 0.15rem 1rem; }
  .hero { padding-top: 3rem; }
  .hero h1 { max-width: 9ch; }
  .hero-figure img { aspect-ratio: 4 / 3; }
  figcaption { display: block; }
  figcaption span { display: block; margin-bottom: 0.35rem; }
  .room-section { grid-template-columns: 1fr; }
  .section-number { display: none; }
  .room-section .section-heading, .two-column-copy, .field-note { grid-column: 1; }
  .measure-grid { grid-template-columns: 1fr; }
  .measure-block { min-height: auto; padding: 2rem 0; }
  .measure-block + .measure-block { padding-left: 0; border-left: 0; border-top: 1px solid var(--line-strong); }
  .measure { margin-bottom: 2.5rem; }
  .accent-block { grid-column: auto; margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter) !important; }
  .noise-layout { grid-template-columns: 1fr; }
  .detail-figure { width: min(78%, 22rem); margin-left: auto; }
  .monitoring-copy { grid-column: 1; }
  .checklist li { grid-template-columns: 1fr; gap: 0.25rem; }
  .cable-diagram { grid-template-columns: 1fr; }
  .cable-diagram::before { width: 100%; }
  .cable-diagram > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .cable-diagram p { margin-top: 1.2rem; }
  .test-grid, .final-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-grid > div { min-height: 0; padding: 2rem 0; }
  .footer-grid > div + div { padding-left: 0; border-left: 0; border-top: 1px solid rgba(255,255,255,0.18); }
  .footer-contact { min-height: 8rem !important; }
  .footer-bottom { flex-direction: column; gap: 0.7rem; }
  .legal-hero { padding-top: 4rem; }
  .legal-layout { grid-template-columns: 1fr; }
  .legal-index { position: static; }
  .numbered-sections section { padding-left: 3.3rem; }
  .contact-strip { padding: 1.4rem !important; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}