.metro-container,
.metro-hero-inner,
.metro-hero-foot {
  width: min(100% - 48px, 1200px);
  margin-inline: auto;
}

.metro-eyebrow {
  color: #2b95f6;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.metro-hero {
  position: relative;
  isolation: isolate;
  min-height: 610px;
  overflow: hidden;
  background: #101e31;
  color: white;
}

.metro-hero-photo {
  position: absolute;
  inset: 0 0 0 34%;
  z-index: -2;
  background: url("assets/hero-metrology.webp") center 55% / cover no-repeat;
}

.metro-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, #101e31 0%, #101e31 34%, rgba(16, 30, 49, .84) 51%, rgba(16, 30, 49, .28) 100%),
    linear-gradient(0deg, #101e31 0%, transparent 40%);
}

.metro-hero-inner {
  padding-top: 175px;
  padding-bottom: 116px;
}

.metro-hero h1 {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(4.5rem, 9vw, 8.5rem);
  line-height: 1;
  letter-spacing: -.035em;
  text-transform: uppercase;
  font-weight: 500;
}

.metro-title-dot { color: #2b95f6; }

.metro-hero-lead {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(1.5rem, 2.6vw, 2.35rem);
  margin-top: 20px;
  font-weight: 400;
  letter-spacing: .01em;
}

.metro-hero-copy {
  max-width: 550px;
  margin-top: 15px;
  color: #cbd6e3;
  line-height: 1.8;
  font-size: .98rem;
}

.metro-hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 32px;
}

.metro-primary-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 25px;
  min-height: 52px;
  padding: 12px 22px;
  background: #2b95f6;
  color: white;
  border-radius: 5px;
  font-size: .85rem;
  font-weight: 700;
  transition: background .2s, transform .2s;
}

.metro-primary-link:hover { background: #1876d3; transform: translateY(-2px); }
.metro-primary-link:focus-visible,
.metro-secondary-link:focus-visible { outline: 2px solid #79c2ff; outline-offset: 4px; }

.metro-secondary-link {
  display: inline-flex;
  gap: 13px;
  align-items: center;
  color: white;
  font-weight: 600;
  font-size: .85rem;
  border-bottom: 1px solid #77a6ca;
  padding-bottom: 5px;
}

.metro-secondary-link:hover { color: #72bdff; }

.metro-hero-foot {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 32px;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,.22);
  color: #d2e0ed;
  font-size: .64rem;
  font-weight: 700;
  letter-spacing: .13em;
}

.metro-hero-foot span:not(:last-child)::after {
  content: "•";
  color: #2b95f6;
  margin-left: 32px;
}

.metro-section { padding: 96px 0 108px; }
.metro-calibration { background: #f7f9fc; scroll-margin-top: 80px; }

.metro-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 52px;
  margin-bottom: 45px;
}

.metro-section-heading > div { flex: 1; }
.metro-section-heading h2,
.metro-contact h2 {
  margin-top: 12px;
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2.7rem, 5vw, 4.3rem);
  line-height: 1.08;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: -.025em;
  color: #17263a;
}

.metro-section-heading h2 span { color: #2b95f6; }
.metro-section-heading > p {
  max-width: 420px;
  color: #5f7083;
  line-height: 1.75;
  font-size: .95rem;
}

.metro-explorer {
  display: grid;
  grid-template-columns: 315px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid #dae4ee;
  border-radius: 12px;
  background: white;
  box-shadow: 0 20px 60px rgba(20, 39, 61, .07);
}

.metro-explorer-nav { padding: 27px 0; border-right: 1px solid #e7edf3; }
.metro-explorer-label {
  display: flex;
  justify-content: space-between;
  padding: 0 24px 18px;
  color: #728196;
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .14em;
}
.metro-explorer-label span { color: #2b95f6; }
.metro-tabs { display: grid; }
.metro-tab {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 24px;
  min-height: 45px;
  border-left: 3px solid transparent;
  text-align: left;
  color: #47566b;
  font-size: .88rem;
  font-weight: 600;
  transition: color .2s, background .2s, border-color .2s;
}
.metro-tab:hover { background: #f2f7fc; color: #156dbb; }
.metro-tab.is-active {
  background: #edf6ff;
  border-color: #2b95f6;
  color: #176fbe;
}
.metro-tab:focus-visible,
.metro-select:focus-visible { outline: 2px solid #2b95f6; outline-offset: -3px; }
.metro-tab-number { min-width: 20px; color: #a7b5c5; font-size: .68rem; font-weight: 700; }
.metro-tab.is-active .metro-tab-number { color: #2b95f6; }
.metro-tab-arrow { margin-left: auto; font-size: 1rem; opacity: 0; }
.metro-tab.is-active .metro-tab-arrow,
.metro-tab:hover .metro-tab-arrow { opacity: 1; }
.metro-select-label,
.metro-select { display: none; }

.metro-domain {
  position: relative;
  min-height: 650px;
  padding: clamp(30px, 5vw, 68px);
  color: #fff;
  background: radial-gradient(circle at 90% 0%, rgba(43,149,246,.15), transparent 36%), #15283e;
}
.metro-domain-top { display: flex; justify-content: space-between; align-items: flex-start; }
.metro-domain-index,
.metro-domain-kicker {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: #83bdf1;
}
.metro-domain-symbol {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  color: rgba(79, 167, 247, .42);
}
.metro-domain-kicker { margin-top: 24px; }
.metro-domain h3 {
  margin-top: 7px;
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2.7rem, 5vw, 4.2rem);
  font-weight: 500;
  line-height: 1.1;
  text-transform: uppercase;
}
.metro-ranges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.metro-ranges[hidden] { display: none; }
.metro-ranges span {
  padding: 8px 12px;
  background: rgba(43,149,246,.12);
  color: #b7dcff;
  border: 1px solid rgba(99,177,248,.27);
  border-radius: 4px;
  font-size: .78rem;
  font-weight: 600;
}
.metro-domain-rule { height: 1px; background: rgba(255,255,255,.13); margin: 32px 0 27px; }
.metro-domain h4 {
  color: #a8bbd1;
  font-size: .69rem;
  font-weight: 700;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.metro-instruments {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 14px 30px;
  margin: 19px 0 36px;
}
.metro-instruments li {
  position: relative;
  padding-left: 18px;
  color: #e4ebf4;
  font-size: .88rem;
  line-height: 1.5;
}
.metro-instruments li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .57em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2b95f6;
}
.metro-domain-cta {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 6px;
  border-bottom: 1px solid #58aaf2;
  color: white;
  font-size: .83rem;
  font-weight: 700;
}
.metro-domain-cta:hover { color: #7ec3ff; }
.metro-domain-cta:focus-visible { outline: 2px solid #7ec3ff; outline-offset: 4px; }

.metro-extras { background: #fff; }
.metro-service-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.metro-service-card {
  display: flex;
  flex-direction: column;
  min-height: 285px;
  padding: 31px;
  border: 1px solid #e2eaf2;
  border-radius: 9px;
  background: #f8fafc;
}
.metro-service-number { color: #2187e4; font-size: .67rem; font-weight: 700; letter-spacing: .16em; }
.metro-service-card h3 {
  margin-top: 30px;
  margin-bottom: 13px;
  font-family: 'Oswald', sans-serif;
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.15;
  text-transform: uppercase;
  color: #1b2a3f;
}
.metro-service-card p { font-size: .88rem; line-height: 1.68; color: #5a6a7b; }
.metro-service-card .metro-service-detail {
  margin-top: auto;
  padding-top: 24px;
  color: #1979ca;
  font-size: .76rem;
  font-weight: 600;
  line-height: 1.7;
}
.metro-service-highlight { background: #eaf4fe; border-color: #c9e3fa; }
.metro-service-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; padding-top: 24px; }
.metro-service-tags span { padding: 7px 9px; border-radius: 3px; background: white; color: #1470bb; font-size: .67rem; font-weight: 700; text-transform: uppercase; }

.metro-mapping { background: #15283e; }
.metro-mapping .metro-section-heading h2 { color: white; }
.metro-mapping .metro-section-heading > p { color: #b3c3d5; }
.metro-map-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.metro-map-card {
  display: flex;
  gap: 28px;
  min-height: 295px;
  padding: 36px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 9px;
  background: rgba(255,255,255,.045);
}
.metro-map-number { color: #4da7f4; font-family: 'Oswald', sans-serif; font-size: 2.6rem; line-height: 1; }
.metro-map-card h3 {
  font-family: 'Oswald', sans-serif;
  color: white;
  font-size: 2rem;
  text-transform: uppercase;
  line-height: 1;
}
.metro-map-range { margin: 19px 0 20px; font-size: 1.1rem; font-weight: 700; color: #69b8fc; }
.metro-map-range small { font-size: .65rem; color: #c5d1df; text-transform: uppercase; }
.metro-map-card p:last-child { color: #c9d4e0; font-size: .88rem; line-height: 1.9; }
.metro-map-card p:last-child span { color: #2b95f6; margin: 0 4px; }

.metro-contact { background: #edf5fc; padding: 70px 0; }
.metro-contact-inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.metro-contact h2 { font-size: clamp(2.3rem, 4vw, 3.8rem); }

@media (max-width: 900px) {
  .metro-explorer { grid-template-columns: 250px minmax(0,1fr); }
  .metro-tab { gap: 10px; padding-inline: 14px; }
  .metro-domain { padding: 35px; }
  .metro-service-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 700px) {
  .metro-container, .metro-hero-inner, .metro-hero-foot { width: min(100% - 36px, 1200px); }
  .metro-hero { min-height: 615px; }
  .metro-hero-photo { inset: 0; opacity: .34; background-position: center; }
  .metro-hero::after { background: linear-gradient(90deg, rgba(16,30,49,.92), rgba(16,30,49,.5)), linear-gradient(0deg,#101e31,transparent 55%); }
  .metro-hero-inner { padding-top: 125px; padding-bottom: 145px; }
  .metro-hero h1 { font-size: clamp(4.2rem, 17vw, 6.5rem); }
  .metro-hero-actions { gap: 22px; }
  .metro-hero-foot { flex-wrap: wrap; gap: 9px 14px; padding: 15px 0; }
  .metro-hero-foot span:not(:last-child)::after { display: none; }
  .metro-section { padding: 70px 0; }
  .metro-section-heading { display: block; margin-bottom: 30px; }
  .metro-section-heading > p { margin-top: 18px; }
  .metro-explorer { display: block; }
  .metro-explorer-nav { padding: 20px; border-right: 0; border-bottom: 1px solid #e7edf3; }
  .metro-explorer-label { padding: 0 0 12px; }
  .metro-tabs { display: none; }
  .metro-select-label { display: block; margin-bottom: 7px; color: #506378; font-size: .78rem; font-weight: 600; }
  .metro-select { display: block; width: 100%; padding: 12px; border: 1px solid #cad8e6; border-radius: 5px; background: white; color: #18304c; }
  .metro-domain { min-height: 420px; padding: 29px 24px 36px; }
  .metro-domain-kicker { margin-top: 16px; }
  .metro-instruments { grid-template-columns: 1fr; gap: 12px; }
  .metro-service-grid, .metro-map-grid { grid-template-columns: 1fr; }
  .metro-service-card { min-height: 230px; }
  .metro-map-card { min-height: 230px; padding: 28px; gap: 18px; }
  .metro-contact-inner { display: block; }
  .metro-contact .metro-primary-link { margin-top: 25px; }
}

@media (prefers-reduced-motion: reduce) {
  .metro-primary-link,
  .metro-tab { transition: none; }
}
/* Progressive enhancement: every domain remains readable without JavaScript. */
.metro-domain[hidden] { display: none; }
.metro-explorer:not(.is-enhanced) .metro-select,
.metro-explorer:not(.is-enhanced) .metro-select-label { display: none; }
.metro-explorer:not(.is-enhanced) .metro-tabs { display: grid; }
@media print {
  .metro-domain[hidden] { display: block; }
  .metro-explorer { display: block; }
  .metro-explorer-nav { display: none; }
}

.metro-workflow { background: white; padding: 95px 0; scroll-margin-top: 100px; }
.metro-workflow h2 { margin: 16px 0 40px; font: 500 clamp(2.6rem, 5vw, 4.8rem)/1.1 'Oswald', sans-serif; color: #182b41; text-transform: uppercase; }
.metro-workflow h2 span { color: #2b95f6; }
.metro-workflow-list { list-style: none; margin: 0; padding: 0; }
.metro-workflow-list li { display: grid; grid-template-columns: 65px 1fr; gap: 25px; padding: 30px 0; border-top: 1px solid #e2e8f0; }
.metro-workflow-number { font: 400 2rem/1.2 'Oswald', sans-serif; color: #2b95f6; }
.metro-workflow-list h3 { font-size: 1.25rem; font-weight: 600; color: #182b41; margin-bottom: 12px; }
.metro-workflow-list p { max-width: 850px; color: #50647a; line-height: 1.85; }
@media (max-width: 600px) { .metro-workflow { padding: 65px 0; } .metro-workflow-list li { grid-template-columns: 35px 1fr; gap: 15px; } }