:root {
  --ground: #F2F5F3;
  --surface: #FFFFFF;
  --ink: #172A2C;
  --ink-2: #475B5E;
  --line: #B7C8C7;
  --accent: #167486;
  --on-accent: #FFFFFF;
  --font-display: "Barlow", sans-serif;
  --font-body: "Inter", sans-serif;
  --wrap: 1328px;
  --gutter: clamp(20px, 5vw, 64px);
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;
  --radius-control: 4px;
  --radius-card: 12px;
  --nav-gap: clamp(16px, 2.1vw, 32px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ground); color: var(--ink); font-family: var(--font-body); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; }
p { text-wrap: pretty; }
.wrap { width: min(calc(100% - 2 * var(--gutter)), var(--wrap)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: var(--gutter); z-index: 100; padding: var(--s-3) var(--s-4); background: var(--ink); color: var(--surface); }
.skip-link:focus { top: var(--s-2); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.site-header { position: relative; z-index: 20; border-bottom: 1px solid var(--line); background: var(--ground); }
.header-layout { display: flex; align-items: center; min-height: 96px; gap: var(--s-6); }
.brand { flex: 0 0 auto; width: 205px; overflow: hidden; }
.brand img { width: 205px; height: 54px; object-fit: contain; }
.main-nav { display: flex; align-items: center; gap: var(--nav-gap); margin-left: auto; }
.main-nav a { font-size: 14px; font-weight: 500; white-space: nowrap; }
.main-nav a:hover, .main-nav [aria-current="page"] { color: var(--accent); }
.header-action { display: inline-flex; align-items: center; justify-content: center; gap: var(--s-5); min-height: 48px; padding-inline: var(--s-4); border: 1px solid var(--ink); border-radius: var(--radius-control); font-size: 14px; font-weight: 600; white-space: nowrap; transition: background .2s, color .2s; }
.header-action:hover { background: var(--ink); color: var(--surface); }
.header-action span { font-size: 18px; font-weight: 400; }
.mobile-menu { display: none; position: relative; }

.measurement-intro { overflow: hidden; background: linear-gradient(110deg, var(--ground) 0 43%, #E7EEEB 100%); }
.measurement-intro-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .9fr); gap: var(--s-8); min-height: 650px; }
.measurement-copy { position: relative; z-index: 2; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding-block: var(--s-9); }
.measurement-copy h1 { max-width: 13ch; font-size: clamp(58px, 5.5vw, 80px); line-height: .99; letter-spacing: -.045em; font-weight: 600; }
.measurement-copy p { max-width: 51ch; margin-top: var(--s-6); color: var(--ink-2); font-size: 20px; line-height: 1.55; }
.primary-action { display: inline-flex; align-items: center; justify-content: space-between; gap: var(--s-7); min-height: 60px; margin-top: var(--s-7); padding-inline: var(--s-5); border: 1px solid var(--accent); border-radius: var(--radius-control); background: var(--accent); color: var(--on-accent); font-size: 16px; font-weight: 600; transition: background .2s, border-color .2s; }
.primary-action:hover { background: var(--ink); border-color: var(--ink); }
.primary-action span { font-size: 22px; font-weight: 400; }
.measurement-object { position: relative; min-height: 650px; isolation: isolate; }
.object-backdrop { position: absolute; z-index: -1; inset: var(--s-9) 0 var(--s-8) 12%; background: var(--surface); border: 1px solid rgba(23,42,44,.12); border-radius: var(--radius-card); box-shadow: 0 28px 50px rgba(23,42,44,.07); }
.measurement-object img { position: absolute; z-index: 2; left: -2%; bottom: -3%; width: auto; height: 90%; max-width: none; object-fit: contain; filter: drop-shadow(16px 20px 14px rgba(23,42,44,.18)); }
.object-sheet { position: absolute; z-index: 3; top: 15%; right: -2%; width: 36%; padding: var(--s-5); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-control); box-shadow: 0 12px 24px rgba(23,42,44,.08); transform: rotate(5deg); }
.object-sheet span { display: block; padding-bottom: var(--s-3); border-bottom: 1px solid var(--line); font-family: var(--font-display); font-size: 18px; font-weight: 600; }
.object-sheet i { display: block; height: 1px; margin-top: var(--s-6); background: var(--line); }
.object-sheet i:last-child { width: 70%; }

.measurement-section { padding-block: var(--s-9); }
.measurement-section h2 { max-width: 17ch; font-size: clamp(40px, 4vw, 56px); line-height: 1.06; letter-spacing: -.03em; font-weight: 600; }
.info-rows { margin-top: var(--s-8); border-top: 1px solid var(--line); }
.info-row { display: grid; grid-template-columns: 72px minmax(180px, .6fr) minmax(0, 1fr); align-items: center; column-gap: var(--s-6); min-height: 144px; padding-block: var(--s-5); border-bottom: 1px solid var(--line); }
.info-number { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent); font-family: var(--font-display); font-size: 24px; font-weight: 600; }
.info-row h3 { font-size: 32px; line-height: 1.1; font-weight: 600; }
.info-row p { max-width: 55ch; color: var(--ink-2); font-size: 16px; line-height: 1.6; }
.scope-section { border-block: 1px solid var(--line); }
.scope-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .7fr); gap: var(--s-9); align-items: center; }
.scope-grid > div:first-child p { max-width: 65ch; margin-top: var(--s-6); color: var(--ink-2); font-size: 16px; line-height: 1.7; }
.scope-note { padding: var(--s-7); border-left: 3px solid var(--accent); background: var(--surface); }
.scope-note h3 { font-size: 28px; line-height: 1.1; font-weight: 600; }
.scope-note p { margin-top: var(--s-5); color: var(--ink-2); font-size: 16px; line-height: 1.7; }
.measurement-end { padding-block: var(--s-9); }
.end-grid { display: flex; align-items: end; justify-content: space-between; gap: var(--s-8); }
.end-grid h2 { max-width: 19ch; }
.end-grid p { max-width: 55ch; margin-top: var(--s-5); color: var(--ink-2); font-size: 16px; line-height: 1.6; }
.end-grid .primary-action { flex: 0 0 auto; }

.privacy-main { padding-block: var(--s-9); }
.privacy-wrap { max-width: 1000px; }
.privacy-main h1 { max-width: 15ch; font-size: clamp(54px, 6vw, 80px); line-height: 1; letter-spacing: -.045em; font-weight: 600; }
.privacy-lede { max-width: 59ch; margin-top: var(--s-6); color: var(--ink-2); font-size: 20px; line-height: 1.6; }
.privacy-date { margin-top: var(--s-6); color: var(--ink-2); font-size: 14px; }
.privacy-main section { max-width: 860px; padding-block: var(--s-8); border-top: 1px solid var(--line); }
.privacy-main section:first-of-type { margin-top: var(--s-8); }
.privacy-main h2 { max-width: 22ch; font-size: 36px; line-height: 1.1; font-weight: 600; }
.privacy-main section p { max-width: 75ch; margin-top: var(--s-5); color: var(--ink-2); font-size: 16px; line-height: 1.8; }
.privacy-main section a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

.site-footer { border-top: 1px solid var(--line); padding-top: var(--s-8); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .6fr) minmax(0, .7fr); gap: var(--s-8); padding-bottom: var(--s-8); }
.footer-brand { font-family: var(--font-display); font-size: 28px; line-height: 1.2; font-weight: 600; }
.footer-grid p { max-width: 29ch; margin-top: var(--s-4); color: var(--ink-2); font-size: 16px; line-height: 1.6; }
.footer-grid nav, .footer-contact { display: flex; flex-direction: column; align-items: flex-start; gap: var(--s-3); font-size: 16px; }
.footer-grid a:hover { color: var(--accent); }
.footer-contact span { color: var(--ink-2); font-size: 14px; font-weight: 600; }
.footer-contact span:not(:first-child) { margin-top: var(--s-4); }
.footer-bottom { display: flex; justify-content: space-between; padding-block: var(--s-5); border-top: 1px solid var(--line); color: var(--ink-2); font-size: 14px; }

@media (max-width: 1050px) {
  .header-layout { min-height: 80px; }
  .brand, .brand img { width: 180px; }
  .main-nav { gap: var(--s-4); }
  .main-nav a { font-size: 13px; }
  .measurement-intro-grid { gap: var(--s-5); }
  .measurement-copy h1 { font-size: clamp(50px, 5.4vw, 68px); }
  .measurement-object img { left: -8%; height: 85%; }
}
@media (max-width: 760px) {
  .header-layout { min-height: 74px; gap: var(--s-4); }
  .brand, .brand img { width: 166px; }
  .brand img { height: 44px; }
  .main-nav { display: none; }
  .header-action { margin-left: auto; min-height: 42px; }
  .mobile-menu { display: block; }
  .mobile-menu summary { display: flex; align-items: center; gap: var(--s-2); min-height: 42px; cursor: pointer; list-style: none; font-size: 14px; font-weight: 600; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary span { font-size: 18px; }
  .mobile-menu nav { position: absolute; right: 0; top: calc(100% + var(--s-4)); display: flex; flex-direction: column; min-width: 225px; padding: var(--s-4); border: 1px solid var(--line); background: var(--surface); box-shadow: 0 10px 24px rgba(23,42,44,.08); }
  .mobile-menu nav a { padding: var(--s-3); font-size: 15px; }
  .measurement-intro-grid { display: flex; flex-direction: column; gap: 0; }
  .measurement-copy { padding-block: var(--s-8) var(--s-6); }
  .measurement-copy h1 { max-width: 13ch; font-size: clamp(48px, 10vw, 64px); }
  .measurement-copy p { max-width: 55ch; margin-top: var(--s-5); font-size: 17px; }
  .primary-action { margin-top: var(--s-6); }
  .measurement-object { min-height: 480px; margin-inline: calc(-1 * var(--gutter)); overflow: hidden; }
  .object-backdrop { inset: var(--s-5) var(--s-6) var(--s-5) 22%; }
  .measurement-object img { left: 8%; bottom: -7%; height: 104%; }
  .object-sheet { top: 9%; right: 6%; width: 31%; }
  .measurement-section { padding-block: var(--s-8); }
  .measurement-section h2 { font-size: 42px; }
  .info-row { grid-template-columns: 56px minmax(0, 1fr); gap: var(--s-2) var(--s-4); min-height: 0; padding-block: var(--s-5); }
  .info-row h3 { font-size: 28px; }
  .info-row p { grid-column: 2; font-size: 16px; }
  .scope-grid { grid-template-columns: 1fr; gap: var(--s-7); }
  .end-grid { align-items: flex-start; flex-direction: column; gap: 0; }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .privacy-main { padding-block: var(--s-8); }
  .privacy-main h1 { font-size: 58px; }
  .privacy-main section { padding-block: var(--s-7); }
}
@media (max-width: 520px) {
  .header-action { display: none; }
  .mobile-menu { margin-left: auto; }
  .measurement-copy h1 { font-size: 47px; }
  .measurement-object { min-height: 420px; }
  .measurement-object img { left: 0; height: 100%; }
  .object-sheet { width: 38%; padding: var(--s-4); }
  .object-sheet span { font-size: 15px; }
  .measurement-section h2 { font-size: 38px; }
  .scope-note { padding: var(--s-6); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--s-7); }
  .footer-grid > div:first-child { grid-column: auto; }
  .privacy-main h1 { font-size: 50px; }
  .privacy-lede { font-size: 18px; }
  .privacy-main h2 { font-size: 32px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .header-action, .primary-action { transition: none; }
}