:root {
  --ink: #15191d;
  --ink-soft: #242a30;
  --paper: #f3f1ec;
  --paper-deep: #e8e5de;
  --white: #fffefa;
  --red: #d9272f;
  --red-dark: #ad171f;
  --muted: #687078;
  --line: rgba(21, 25, 29, 0.16);
  --line-light: rgba(255, 255, 255, 0.16);
  --max: 1520px;
  --gutter: max(24px, calc((100vw - var(--max)) / 2));
  --nav-height: 84px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family:
    "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body[data-menu-open="true"] {
  overflow: hidden;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
h4,
p {
  overflow-wrap: break-word;
}

::selection {
  background: var(--red);
  color: var(--white);
}

:focus-visible {
  outline: 3px solid rgba(217, 39, 47, 0.42);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 12px;
  left: 12px;
  padding: 12px 18px;
  background: var(--white);
  color: var(--ink);
  font-weight: 800;
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.scroll-progress {
  position: fixed;
  z-index: 120;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  will-change: transform;
}

.site-nav {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 44px;
  padding-inline: var(--gutter);
  background: rgba(21, 25, 29, 0.88);
  border-bottom: 1px solid var(--line-light);
  color: var(--white);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  width: clamp(250px, 22vw, 330px);
}

.brand-logo {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: left center;
}

.desktop-nav {
  display: flex;
  justify-content: center;
  gap: clamp(24px, 2.8vw, 48px);
}

.desktop-nav a {
  position: relative;
  padding: 31px 0 29px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 23px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 260ms var(--ease);
}

.nav-cta {
  min-height: 45px;
  display: inline-flex;
  align-items: center;
  gap: 22px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition:
    background-color 180ms ease,
    border-color 180ms ease;
}

.arrow {
  position: relative;
  width: 23px;
  height: 14px;
  display: inline-block;
  flex: 0 0 23px;
}

.arrow span {
  position: absolute;
  top: 50%;
  left: 0;
  width: 21px;
  height: 1px;
  background: currentColor;
}

.arrow span::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

.arrow--down {
  transform: rotate(90deg);
}

.menu-button {
  width: 48px;
  height: 48px;
  display: none;
  place-items: center;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-light);
  cursor: pointer;
}

.menu-button span {
  position: absolute;
  width: 20px;
  height: 1px;
  background: var(--white);
  transition: transform 220ms ease;
}

.menu-button span:first-child {
  transform: translateY(-4px);
}

.menu-button span:last-child {
  transform: translateY(4px);
}

body[data-menu-open="true"] .menu-button span:first-child {
  transform: rotate(45deg);
}

body[data-menu-open="true"] .menu-button span:last-child {
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  z-index: 90;
  inset: var(--nav-height) 0 0;
  display: none;
  padding: 32px 24px;
  background: var(--ink);
  color: var(--white);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
  transition:
    opacity 220ms ease,
    transform 300ms var(--ease);
}

.mobile-menu.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mobile-menu nav {
  display: grid;
}

.mobile-menu a {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 18px;
  border-bottom: 1px solid var(--line-light);
  font-size: clamp(1.35rem, 5vw, 2rem);
  font-weight: 750;
  letter-spacing: -0.02em;
}

.mobile-menu a span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.hero {
  position: relative;
  z-index: 0;
  min-height: max(720px, 100svh);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  padding: calc(var(--nav-height) + 70px) var(--gutter) 130px;
  overflow: hidden;
  isolation: isolate;
  background-color: #101316;
  background-image: url("assets/hero/rail-construction-1672.webp");
  background-position: 58% center;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--white);
}

.hero::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgba(10, 13, 15, 0.97) 0%,
      rgba(10, 13, 15, 0.9) 34%,
      rgba(10, 13, 15, 0.62) 50%,
      rgba(10, 13, 15, 0.18) 64%,
      transparent 80%
    ),
    linear-gradient(
      0deg,
      rgba(10, 13, 15, 0.72) 0%,
      rgba(10, 13, 15, 0.16) 30%,
      transparent 48%
    );
}

.hero-grid {
  position: absolute;
  z-index: 3;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.42;
  mask-image: linear-gradient(to right, black 0%, black 40%, transparent 68%);
}

.hero-copy {
  position: relative;
  z-index: 4;
  max-width: min(820px, 63vw);
  text-shadow: 0 2px 26px rgba(0, 0, 0, 0.38);
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow--light {
  color: rgba(255, 255, 255, 0.58);
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(4.1rem, 7vw, 7.3rem);
  font-weight: 850;
  letter-spacing: -0.072em;
  line-height: 1;
  text-transform: uppercase;
}

.hero h1 span {
  display: block;
  color: var(--red);
}

.hero-lead {
  max-width: 690px;
  margin: clamp(32px, 4vw, 56px) 0 0;
  color: rgba(255, 255, 255, 0.69);
  font-size: clamp(1.05rem, 1.15vw, 1.3rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 38px;
}

.button {
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 0 24px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--white);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 240ms var(--ease);
}

.button--primary {
  background: var(--red);
  border-color: var(--red);
}

.button--ghost {
  background: rgba(10, 13, 15, 0.34);
  backdrop-filter: blur(10px);
}

.hero-index {
  position: absolute;
  z-index: 4;
  right: var(--gutter);
  bottom: 56px;
  width: min(390px, 31vw);
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(10, 13, 15, 0.48);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.hero-index::before,
.hero-index::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--red);
}

.hero-index::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--red);
  border-left: 2px solid var(--red);
}

.hero-index::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
}

.hero-index-top,
.hero-index-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  color: rgba(255, 255, 255, 0.48);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-index-center {
  text-align: center;
}

.hero-index-center strong {
  display: block;
  color: var(--white);
  font-size: clamp(4.3rem, 5.4vw, 6.3rem);
  font-weight: 300;
  letter-spacing: -0.075em;
  line-height: 0.85;
}

.hero-index-center span {
  display: block;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero-index-bottom {
  align-items: flex-end;
}

.hero-index-bottom span {
  max-width: 110px;
}

.hero-index-bottom span:last-child {
  text-align: right;
}

.hero-index-bottom i {
  height: 36px;
  flex: 1;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  transform: skewX(-35deg);
}

.scroll-cue {
  position: absolute;
  z-index: 4;
  right: calc(var(--gutter) + min(390px, 31vw) + 30px);
  bottom: 56px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255, 255, 255, 0.5);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scroll-cue i {
  width: 1px;
  height: 48px;
  display: block;
  background: linear-gradient(var(--red) 50%, rgba(255, 255, 255, 0.18) 50%);
  background-size: 100% 200%;
  animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
  0% {
    background-position: 0 100%;
  }
  100% {
    background-position: 0 -100%;
  }
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding-inline: var(--gutter);
  background: var(--red);
  color: var(--white);
}

.metric {
  position: relative;
  min-height: 230px;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: 1fr auto;
  gap: 8px 20px;
  align-items: end;
  padding: 34px clamp(22px, 2.6vw, 44px);
  border-left: 1px solid rgba(255, 255, 255, 0.25);
}

.metric:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.25);
}

.metric-index {
  align-self: start;
  color: rgba(255, 255, 255, 0.55);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.65rem;
}

.metric strong {
  grid-column: 1 / -1;
  color: var(--white);
  font-size: clamp(2.8rem, 4.5vw, 5rem);
  font-weight: 300;
  letter-spacing: -0.06em;
  line-height: 0.9;
}

.metric p {
  grid-column: 1 / -1;
  max-width: 170px;
  margin: 6px 0 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  line-height: 1.45;
  text-transform: uppercase;
}

.section-shell {
  padding: clamp(92px, 10vw, 170px) var(--gutter);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.55fr);
  gap: clamp(48px, 8vw, 140px);
  align-items: end;
  margin-bottom: clamp(64px, 7vw, 110px);
}

.section-heading--compact {
  margin-bottom: 64px;
}

.section-heading h2,
.group-network-intro h2,
.contact h2 {
  max-width: 980px;
  margin: 0;
  font-size: clamp(3rem, 5.8vw, 7rem);
  font-weight: 780;
  letter-spacing: -0.065em;
  line-height: 0.95;
}

.section-heading > p,
.group-network-heading > p,
.contact-copy > p:last-child {
  max-width: 510px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.1vw, 1.18rem);
  line-height: 1.75;
}

.legacy {
  background: var(--paper);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
}

.timeline-item {
  position: relative;
  min-width: 0;
  padding-right: clamp(20px, 2vw, 34px);
}

.timeline-year {
  padding-top: 26px;
  color: var(--ink);
  font-size: clamp(2rem, 3vw, 3.25rem);
  font-weight: 300;
  letter-spacing: -0.04em;
}

.timeline-node {
  position: absolute;
  top: -6px;
  left: 0;
  width: 12px;
  height: 12px;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 2px solid var(--red);
  border-radius: 50%;
}

.timeline-node span {
  width: 4px;
  height: 4px;
  background: var(--red);
  border-radius: 50%;
}

.timeline-copy {
  margin-top: 52px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.timeline-copy > span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
}

.timeline-copy h3 {
  margin: 18px 0 8px;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

.timeline-copy p {
  max-width: 190px;
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.ownership {
  display: grid;
  grid-template-columns: minmax(340px, 0.68fr) minmax(0, 1.32fr);
  background: var(--ink);
  color: var(--white);
}

.ownership-aside {
  position: relative;
  min-height: 780px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(72px, 8vw, 130px) clamp(32px, 5vw, 84px);
  overflow: hidden;
  background: var(--red);
}

.ownership-aside::after {
  content: "";
  position: absolute;
  right: -40%;
  bottom: -30%;
  width: 110%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  box-shadow:
    0 0 0 60px rgba(255, 255, 255, 0.04),
    0 0 0 120px rgba(255, 255, 255, 0.025);
}

.ownership-statement {
  position: relative;
  z-index: 1;
  margin: 50px 0;
  font-size: clamp(2rem, 3.1vw, 4rem);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.ownership-seal {
  position: relative;
  z-index: 1;
  width: 128px;
  height: 128px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 50%;
  text-align: center;
}

.ownership-seal span {
  font-size: 2.1rem;
  font-weight: 300;
  letter-spacing: -0.04em;
  line-height: 1;
}

.ownership-seal small {
  position: absolute;
  right: -15px;
  bottom: -3px;
  padding: 4px;
  background: var(--red);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.48rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.35;
}

.ownership-content {
  padding: clamp(72px, 8vw, 130px) var(--gutter) clamp(72px, 8vw, 130px)
    clamp(40px, 7vw, 120px);
}

.ownership-lead {
  max-width: 980px;
  margin: 0;
  font-size: clamp(1.7rem, 3.1vw, 3.5rem);
  font-weight: 350;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.ownership-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(70px, 8vw, 120px);
  border-top: 1px solid var(--line-light);
}

.ownership-columns article {
  min-height: 270px;
  padding: 26px 28px 0 0;
  border-right: 1px solid var(--line-light);
}

.ownership-columns article + article {
  padding-left: 28px;
}

.ownership-columns article:last-child {
  border-right: 0;
}

.ownership-columns article > span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
}

.ownership-columns h3 {
  margin: 52px 0 18px;
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
}

.ownership-columns p {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.9rem;
  line-height: 1.72;
}

.group-network {
  position: relative;
  padding: clamp(92px, 10vw, 170px) var(--gutter);
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.group-network::before {
  content: "";
  position: absolute;
  top: -18vw;
  right: -12vw;
  width: 55vw;
  height: 55vw;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 50%;
  box-shadow:
    0 0 0 7vw rgba(255, 255, 255, 0.018),
    0 0 0 14vw rgba(255, 255, 255, 0.012);
  pointer-events: none;
}

.group-network-intro,
.group-proof,
.flagship-card,
.network-bridge,
.partner-grid--integrated {
  position: relative;
  z-index: 1;
}

.group-network-intro {
  margin-bottom: clamp(52px, 6vw, 92px);
}

.group-network-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.5fr);
  gap: clamp(48px, 8vw, 140px);
  align-items: end;
}

.group-network-intro h2 {
  max-width: 1120px;
  font-size: clamp(3.2rem, 6.4vw, 8rem);
}

.group-network-heading > p {
  color: rgba(255, 255, 255, 0.54);
}

.group-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: clamp(42px, 5vw, 70px);
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.group-proof article {
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 2.5vw, 38px);
  border-right: 1px solid rgba(255, 255, 255, 0.16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.group-proof article::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0.16);
  transform-origin: left;
}

.group-proof span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
}

.group-proof h3 {
  margin: 40px 0 18px;
  font-size: clamp(1.25rem, 1.7vw, 1.8rem);
  letter-spacing: -0.035em;
  line-height: 1.18;
}

.group-proof p {
  max-width: 430px;
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.84rem;
  line-height: 1.7;
}

.flagship-card {
  overflow: hidden;
  background:
    radial-gradient(circle at 86% 25%, rgba(181, 31, 35, 0.22), transparent 34%),
    #181d20;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
}

.flagship-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--red);
}

.flagship-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px clamp(26px, 3.5vw, 54px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.flagship-card-head span {
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 800;
}

.flagship-card-head small {
  color: rgba(255, 255, 255, 0.42);
  font-size: 0.58rem;
}

.flagship-card-body {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  gap: clamp(48px, 7vw, 110px);
  align-items: end;
  padding: clamp(44px, 5.5vw, 88px) clamp(26px, 4.8vw, 76px);
}

.flagship-identity img {
  width: min(100%, 780px);
  height: auto;
  display: block;
  margin-bottom: clamp(32px, 4vw, 58px);
}

.flagship-identity p {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.62);
  font-size: clamp(1rem, 1.2vw, 1.18rem);
  line-height: 1.75;
}

.flagship-roles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.flagship-roles > div {
  min-height: 142px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  padding: 22px;
  border-right: 1px solid rgba(255, 255, 255, 0.16);
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.flagship-roles span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.6rem;
}

.flagship-roles strong {
  max-width: 150px;
  font-size: 0.9rem;
  line-height: 1.35;
  text-transform: uppercase;
}

.network-bridge {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(20px, 3vw, 46px);
  align-items: center;
  padding: clamp(46px, 5vw, 72px) 0;
  text-align: center;
}

.network-bridge i {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28));
}

.network-bridge i:last-child {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.28), transparent);
}

.network-bridge div {
  display: grid;
  gap: 9px;
}

.network-bridge span {
  color: rgba(255, 255, 255, 0.42);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.network-bridge strong {
  font-size: clamp(1rem, 1.5vw, 1.35rem);
  letter-spacing: -0.02em;
}

.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.partner-tile {
  position: relative;
  min-height: 430px;
  display: flex;
  flex-direction: column;
  padding: 28px;
  overflow: hidden;
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  transition:
    background-color 220ms ease,
    color 220ms ease;
}

.partner-tile-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: rgba(255, 255, 255, 0.42);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.partner-tile-head small {
  max-width: 160px;
  font-size: inherit;
  text-align: right;
}

.partner-logo {
  position: relative;
  width: 100%;
  height: 170px;
  display: grid;
  place-items: center;
  margin: 28px 0 24px;
  padding: 0;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.12);
  transition:
    transform 260ms var(--ease),
    box-shadow 260ms var(--ease);
}

.partner-logo img {
  position: absolute;
  top: 18px;
  left: 24px;
  width: calc(100% - 48px);
  height: calc(100% - 36px);
  max-width: none;
  max-height: none;
  display: block;
  object-fit: scale-down;
  object-position: center;
  image-rendering: auto;
}

.partner-logo--trw {
  background: #011F46;
}

.partner-logo--trw img {
  object-fit: scale-down;
}

.partner-tile h3 {
  max-width: 360px;
  margin: auto 0 16px;
  font-size: clamp(1.2rem, 1.6vw, 1.7rem);
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.22;
}

.partner-tile p {
  max-width: 420px;
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.82rem;
  line-height: 1.65;
}

.tile-line {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 350ms var(--ease);
}

.tenders {
  background: var(--paper);
}

.tender-heading {
  margin-bottom: 56px;
}

.tender-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-group button {
  min-height: 42px;
  padding: 0 17px;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.filter-group button.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.tender-toolbar > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.tender-toolbar > p strong {
  color: var(--ink);
  font-size: 1rem;
}

.tender-list {
  display: grid;
  gap: 10px;
}

.tender-labels,
.tender-summary {
  display: grid;
  grid-template-columns:
    minmax(290px, 1.45fr)
    minmax(130px, 0.55fr)
    minmax(130px, 0.55fr)
    minmax(160px, 0.55fr)
    minmax(100px, auto);
  gap: 18px;
  align-items: center;
}

.tender-labels {
  padding: 0 24px 8px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.tender-row {
  overflow: hidden;
  background: var(--white);
  border: 1px solid transparent;
  transition:
    border-color 180ms ease,
    box-shadow 220ms ease;
}

.tender-summary {
  min-height: 126px;
  padding: 22px 24px;
}

.tender-name {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 18px;
}

.tender-number {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  background: var(--paper);
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
}

.tender-name h3 {
  max-width: 470px;
  margin: 0;
  font-size: clamp(1rem, 1.35vw, 1.3rem);
  font-weight: 760;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.tender-name p {
  margin: 7px 0 0;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.035em;
}

.tender-value > span {
  display: none;
}

.tender-value strong {
  font-size: clamp(0.9rem, 1.1vw, 1.08rem);
  font-weight: 730;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.tender-value--offer strong {
  color: var(--red);
}

.status {
  width: fit-content;
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 11px;
  border: 1px solid;
  border-radius: 999px;
  font-size: 0.63rem;
  font-weight: 850;
  letter-spacing: 0.035em;
  line-height: 1.2;
  text-transform: uppercase;
}

.status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.status--active {
  background: #e6f3dc;
  border-color: #c6deb4;
  color: #356221;
}

.status--warning {
  background: #fff0cc;
  border-color: #ead59f;
  color: #805b00;
}

.status--review {
  background: #fbe3dd;
  border-color: #edc3b9;
  color: #8d3724;
}

.status--closed {
  background: #eceef0;
  border-color: #d8dcdf;
  color: #5f666c;
}

.tender-action {
  justify-self: end;
}

.tender-action button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  background: var(--ink);
  border: 0;
  color: var(--white);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}

.tender-action .arrow {
  width: 18px;
  flex-basis: 18px;
}

.tender-action .arrow span {
  width: 16px;
}

.no-parts {
  color: #a6aaad;
}

.tender-parts {
  position: relative;
  padding: 0 24px 24px 83px;
  background: var(--ink);
  color: var(--white);
}

.tender-parts[hidden] {
  display: none;
}

.parts-rail {
  position: absolute;
  top: 0;
  bottom: 44px;
  left: 45px;
  width: 1px;
  background: var(--red);
}

.part-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(260px, 1.3fr) repeat(3, minmax(130px, 0.65fr));
  gap: 24px;
  align-items: center;
  min-height: 120px;
  border-top: 1px solid var(--line-light);
}

.part-row::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -38px;
  width: 26px;
  height: 1px;
  background: var(--red);
}

.part-row::after {
  content: "";
  position: absolute;
  top: calc(50% - 4px);
  left: -42px;
  width: 8px;
  height: 8px;
  background: var(--red);
  border-radius: 50%;
}

.part-name {
  display: flex;
  align-items: center;
  gap: 16px;
}

.part-name > span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
}

.part-name h4 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1.4;
}

.part-row > div:not(.part-name) span {
  display: block;
  margin-bottom: 6px;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.63rem;
  font-weight: 700;
}

.part-row > div:not(.part-name) strong {
  font-size: 0.92rem;
  font-weight: 720;
}

.part-row .rank {
  width: fit-content;
  display: inline-flex;
  padding: 5px 10px;
  background: var(--red);
  color: var(--white);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.72fr);
  gap: clamp(60px, 10vw, 160px);
  align-items: end;
  padding: clamp(92px, 10vw, 160px) var(--gutter);
  background: var(--red);
  color: var(--white);
}

.contact h2 {
  max-width: 850px;
}

.contact-copy > p:last-child {
  max-width: 600px;
  margin-top: 30px;
  color: rgba(255, 255, 255, 0.67);
}

.contact-actions {
  display: grid;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
}

.contact-actions a {
  min-height: 98px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 8px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}

.contact-actions a > span:first-child {
  grid-column: 1 / -1;
  align-self: end;
  color: rgba(255, 255, 255, 0.58);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-actions strong {
  align-self: start;
  font-size: clamp(1rem, 1.55vw, 1.4rem);
  font-weight: 700;
}

.contact-actions .arrow {
  grid-column: 2;
  grid-row: 1 / 3;
}

.footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 54px 80px;
  padding: 58px var(--gutter) 30px;
  background: #0e1113;
  color: var(--white);
}

.brand--footer {
  width: clamp(250px, 24vw, 340px);
}

.footer-brand p {
  margin: 20px 0 0;
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.78rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 34px;
  align-items: center;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-meta {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 24px;
  border-top: 1px solid var(--line-light);
  color: rgba(255, 255, 255, 0.35);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (hover: hover) and (pointer: fine) {
  .desktop-nav a:hover {
    color: var(--white);
  }

  .desktop-nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .nav-cta:hover {
    background: var(--red);
    border-color: var(--red);
  }

  .button:hover {
    transform: translateY(-3px);
  }

  .button--primary:hover {
    background: var(--red-dark);
    border-color: var(--red-dark);
  }

  .button--ghost:hover {
    background: var(--white);
    border-color: var(--white);
    color: var(--ink);
  }

  .partner-tile:hover {
    background: rgba(255, 255, 255, 0.055);
  }

  .partner-tile:hover .partner-logo {
    transform: translateY(-3px);
    box-shadow: 0 18px 38px rgba(0, 0, 0, 0.2);
  }

  .partner-tile:hover .tile-line {
    transform: scaleX(1);
  }

  .tender-row:hover,
  .tender-row.is-open {
    border-color: rgba(21, 25, 29, 0.15);
    box-shadow: 0 14px 36px rgba(21, 25, 29, 0.08);
  }

  .filter-group button:hover:not(.is-active) {
    border-color: var(--ink);
    color: var(--ink);
  }

  .contact-actions a:hover .arrow,
  .nav-cta:hover .arrow {
    transform: translateX(4px);
  }

  .footer-links a:hover {
    color: var(--white);
  }
}

@media (max-width: 1240px) {
  :root {
    --gutter: 32px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.45fr);
  }

  .hero-index {
    min-height: 400px;
  }

  .ownership-content {
    padding-right: 40px;
  }

  .tender-labels,
  .tender-summary {
    grid-template-columns:
      minmax(260px, 1.3fr)
      minmax(120px, 0.5fr)
      minmax(120px, 0.5fr)
      minmax(145px, 0.55fr)
      auto;
  }
}

@media (max-width: 1040px) {
  .desktop-nav,
  .nav-cta {
    display: none;
  }

  .site-nav {
    grid-template-columns: 1fr auto;
  }

  .menu-button {
    position: relative;
    display: grid;
  }

  .mobile-menu {
    display: block;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 64px;
    align-content: center;
    min-height: 920px;
  }

  .hero-copy {
    align-self: end;
    max-width: min(100%, 780px);
  }

  .hero-index {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(100%, 620px);
    min-height: 220px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    justify-self: end;
  }

  .scroll-cue {
    right: var(--gutter);
    bottom: 32px;
  }

  .hero-index-center strong {
    font-size: 5.5rem;
  }

  .hero-index-bottom {
    justify-content: flex-end;
  }

  .hero-index-bottom i {
    display: none;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric:nth-child(2) {
    border-right: 1px solid rgba(255, 255, 255, 0.25);
  }

  .metric:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  }

  .section-heading {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .timeline {
    grid-template-columns: 1fr;
    border-top: 0;
    border-left: 1px solid var(--line);
  }

  .timeline-item {
    min-height: 170px;
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 32px;
    padding: 0 0 34px 34px;
  }

  .timeline-node {
    top: 12px;
    left: -6px;
  }

  .timeline-year {
    padding-top: 0;
  }

  .timeline-copy {
    margin-top: 0;
    padding: 0 0 28px;
  }

  .timeline-copy h3 {
    margin-top: 12px;
  }

  .ownership {
    grid-template-columns: 1fr;
  }

  .ownership-aside {
    min-height: 480px;
  }

  .ownership-content {
    padding: 80px var(--gutter);
  }

  .group-network-heading,
  .flagship-card-body {
    grid-template-columns: 1fr;
  }

  .group-network-heading > p {
    max-width: 720px;
  }

  .flagship-card-body {
    align-items: start;
  }

  .flagship-roles {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .group-proof article {
    min-height: 285px;
  }

  .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tender-labels {
    display: none;
  }

  .tender-summary {
    grid-template-columns: minmax(0, 1fr) repeat(2, minmax(120px, auto));
  }

  .tender-summary > div:nth-child(4) {
    grid-column: 2;
  }

  .tender-action {
    grid-column: 3;
  }

  .tender-value > span {
    display: block;
    margin-bottom: 5px;
    color: var(--muted);
    font-size: 0.61rem;
    font-weight: 700;
    text-transform: uppercase;
  }

  .part-row {
    grid-template-columns: 1fr repeat(3, minmax(110px, 0.55fr));
  }
}

@media (max-width: 760px) {
  :root {
    --gutter: 20px;
    --nav-height: 72px;
  }

  .site-nav {
    gap: 16px;
    padding-inline: 20px;
  }

  .brand {
    width: min(245px, calc(100vw - 100px));
  }

  .menu-button {
    width: 44px;
    height: 44px;
  }

  .hero {
    min-height: 780px;
    gap: 48px;
    padding: calc(var(--nav-height) + 54px) var(--gutter) 90px;
  }

  .hero::before {
    background:
      linear-gradient(
        90deg,
        rgba(10, 13, 15, 0.95) 0%,
        rgba(10, 13, 15, 0.78) 58%,
        rgba(10, 13, 15, 0.48) 100%
      ),
      linear-gradient(
        0deg,
        rgba(10, 13, 15, 0.94) 0%,
        rgba(10, 13, 15, 0.34) 62%,
        rgba(10, 13, 15, 0.2) 100%
      );
  }

  .hero {
    background-image: url("assets/hero/rail-construction-960.webp");
    background-position: 66% center;
  }

  .hero h1 {
    font-size: clamp(3.55rem, 18vw, 6rem);
    line-height: 0.84;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero-index {
    min-height: 190px;
    grid-template-columns: 1fr auto;
    padding: 18px;
  }

  .hero-index-top {
    height: 100%;
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-index-center strong {
    font-size: 4.8rem;
  }

  .hero-index-bottom {
    display: none;
  }

  .scroll-cue {
    display: none;
  }

  .metrics {
    grid-template-columns: 1fr;
    padding-inline: 20px;
  }

  .metric,
  .metric:nth-child(2),
  .metric:last-child {
    min-height: 158px;
    border-right: 1px solid rgba(255, 255, 255, 0.25);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  }

  .metric:last-child {
    border-bottom: 0;
  }

  .section-shell,
  .group-network,
  .contact {
    padding-block: 82px;
  }

  .section-heading {
    gap: 30px;
    margin-bottom: 54px;
  }

  .section-heading h2,
  .group-network-intro h2,
  .contact h2 {
    font-size: clamp(2.75rem, 13vw, 4.6rem);
  }

  .timeline-item {
    grid-template-columns: 82px 1fr;
    gap: 18px;
    padding-left: 24px;
  }

  .ownership-aside {
    min-height: 430px;
    padding: 70px 24px;
  }

  .ownership-content {
    padding: 72px 20px;
  }

  .ownership-lead {
    font-size: 1.7rem;
  }

  .ownership-columns {
    grid-template-columns: 1fr;
    margin-top: 58px;
  }

  .ownership-columns article,
  .ownership-columns article + article {
    min-height: 0;
    padding: 24px 0 34px;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .ownership-columns h3 {
    margin-top: 30px;
  }

  .group-network::before {
    top: -8vw;
    right: -45vw;
    width: 110vw;
    height: 110vw;
  }

  .group-network-intro {
    margin-bottom: 44px;
  }

  .group-network-heading {
    gap: 28px;
  }

  .group-proof {
    grid-template-columns: 1fr;
    margin-bottom: 38px;
  }

  .group-proof article {
    min-height: 0;
    padding: 24px;
  }

  .group-proof h3 {
    margin: 34px 0 14px;
  }

  .flagship-card-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding: 18px 24px;
  }

  .flagship-card-body {
    gap: 42px;
    padding: 42px 24px 26px;
  }

  .flagship-identity img {
    margin-bottom: 34px;
  }

  .flagship-identity p {
    font-size: 0.95rem;
  }

  .flagship-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flagship-roles > div {
    min-height: 126px;
    padding: 18px;
  }

  .network-bridge {
    grid-template-columns: 18px 1fr 18px;
    gap: 14px;
    padding: 42px 0;
  }

  .network-bridge strong {
    font-size: 0.95rem;
  }

  .partner-grid {
    grid-template-columns: 1fr;
  }

  .partner-tile {
    min-height: 410px;
  }

  .partner-logo {
    height: 150px;
    margin: 24px 0 22px;
  }

  .partner-logo img {
    top: 16px;
    left: 20px;
    width: calc(100% - 40px);
    height: calc(100% - 32px);
  }

  .tender-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .filter-group {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .filter-group button {
    padding-inline: 8px;
  }

  .tender-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 14px;
    padding: 22px 18px;
  }

  .tender-name {
    grid-column: 1 / -1;
    align-items: flex-start;
  }

  .tender-summary > div:nth-child(4) {
    grid-column: 1;
  }

  .tender-action {
    grid-column: 2;
    justify-self: end;
  }

  .tender-action button {
    min-width: 44px;
    padding: 0 12px;
  }

  .tender-action button > span:first-child {
    display: none;
  }

  .tender-parts {
    padding: 0 18px 18px 46px;
  }

  .parts-rail {
    left: 24px;
  }

  .part-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 12px;
    padding-block: 24px;
  }

  .part-row::before {
    left: -22px;
    width: 14px;
  }

  .part-row::after {
    left: -26px;
  }

  .part-name {
    grid-column: 1 / -1;
  }

  .part-row > div:last-child {
    grid-column: 1 / -1;
  }

  .contact {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .footer {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 52px 20px 28px;
  }

  .footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .brand {
    width: min(220px, calc(100vw - 100px));
  }

  .hero h1 {
    font-size: 3.35rem;
  }

  .hero-index-center strong {
    font-size: 4rem;
  }

  .tender-value strong {
    font-size: 0.86rem;
  }

  .status {
    font-size: 0.57rem;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 2026 content handover — new sections */
.alliance { background: var(--paper); }
.alliance-heading { align-items: start; }
.alliance-pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.alliance-pillars article {
  min-height: 300px;
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 3.2vw, 52px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.alliance-pillars span,
.model-grid > article > span,
.reference-grid article > span {
  color: var(--red);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .64rem;
  font-weight: 800;
  letter-spacing: .08em;
}
.alliance-pillars h3 { margin: 30px 0 auto; font-size: clamp(1.45rem, 2vw, 2.15rem); letter-spacing: -.045em; line-height: 1.12; }
.alliance-pillars p { max-width: 430px; margin: 0; color: var(--muted); font-size: .94rem; line-height: 1.75; }

.operating-model {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(520px, 1.1fr);
  gap: clamp(60px, 9vw, 130px);
  padding: clamp(92px, 10vw, 170px) var(--gutter);
  background: #111519;
  color: var(--white);
}
.model-intro h2 { max-width: 850px; margin: 0; font-size: clamp(3.2rem, 5.8vw, 7rem); font-weight: 780; letter-spacing: -.065em; line-height: 0.97; }
.model-intro h2 span { color: var(--red); }
.model-intro > p:last-child { max-width: 680px; margin: 42px 0 0; color: rgba(255,255,255,.58); font-size: clamp(1rem,1.15vw,1.18rem); line-height: 1.8; }
.model-grid { border-top: 1px solid var(--line-light); }
.model-grid article { display: grid; grid-template-columns: 48px 1fr; gap: 24px; padding: 30px 4px; border-bottom: 1px solid var(--line-light); }
.model-grid h3 { margin: 0 0 10px; font-size: clamp(1.25rem,1.7vw,1.7rem); letter-spacing: -.03em; }
.model-grid p { max-width: 590px; margin: 0; color: rgba(255,255,255,.5); font-size: .9rem; line-height: 1.7; }
.external-alliance {
  position: relative;
  z-index: 1;
  display: block;
  margin-top: clamp(48px, 6vw, 86px);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.18);
  background:
    linear-gradient(115deg, rgba(217,39,47,.14), transparent 42%),
    rgba(255,255,255,.025);
}
.external-alliance::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--red);
}
.external-alliance-copy {
  display: grid;
  grid-template-columns: minmax(300px, .9fr) minmax(320px, .7fr);
  gap: clamp(40px, 7vw, 110px);
  align-items: end;
  padding: clamp(44px, 5.5vw, 86px) clamp(32px, 5vw, 76px);
}
.external-alliance-copy h3 {
  max-width: 760px;
  margin: 0;
  color: var(--white);
  font-size: clamp(2.2rem, 4vw, 5rem);
  font-weight: 780;
  letter-spacing: -.06em;
  line-height: .98;
  text-transform: uppercase;
}
.external-alliance-copy p {
  max-width: 610px;
  margin: 0;
  color: rgba(255,255,255,.58);
  font-size: clamp(.94rem, 1.05vw, 1.08rem);
  line-height: 1.8;
}

.heritage { background: var(--paper-deep); }
.compact-timeline { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); margin-bottom: clamp(80px,9vw,140px); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.compact-timeline article { min-height: 180px; display: flex; flex-direction: column; justify-content: space-between; gap: 28px; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.compact-timeline strong { color: var(--red); font-size: clamp(2.2rem,3.4vw,4rem); font-weight: 300; letter-spacing: -.06em; }
.compact-timeline span { max-width: 170px; font-size: .76rem; font-weight: 800; letter-spacing: .03em; line-height: 1.5; text-transform: uppercase; }
.reference-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 30px; }
.reference-heading p { margin-bottom: 0; }
.reference-heading > p:last-child { max-width: 480px; color: var(--muted); font-size: .86rem; line-height: 1.65; text-align: right; }
.reference-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.reference-grid article { min-height: 340px; display: flex; flex-direction: column; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.reference-card { position: relative; isolation: isolate; overflow: hidden; color: var(--white); background-color: #171b1e; background-repeat: no-repeat; background-size: cover; background-position: center; }
.reference-card::before { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(180deg,rgba(13,16,18,.3) 0%,rgba(13,16,18,.2) 28%,rgba(13,16,18,.9) 76%,rgba(13,16,18,.98) 100%); transition: background .3s ease; }
.reference-card::after { content: ""; position: absolute; z-index: -1; inset: 0; border-top: 3px solid transparent; transition: border-color .3s ease; }
.reference-card:hover::before { background: linear-gradient(180deg,rgba(13,16,18,.2) 0%,rgba(13,16,18,.12) 28%,rgba(13,16,18,.86) 76%,rgba(13,16,18,.97) 100%); }
.reference-card:hover::after { border-top-color: var(--red); }
.reference-card--szazhalom { background-image: url("assets/projects/szazhalom_ercsi.webp"); background-position: center 43%; }
.reference-card--mezozombor { background-image: url("assets/projects/mezozombor.webp"); background-position: 52% center; }
.reference-card--piliscsaba { background-image: url("assets/projects/piliscsaba.webp"); background-position: 54% center; }
.reference-card--dombovar { background-image: url("assets/projects/bate_dombovar.webp"); background-position: 32% center; }
.reference-card--kaposvar { background-image: url("assets/projects/bate_dombovar.webp"); background-position: 76% center; }
.reference-grid h3 { margin: auto 0 14px; color: var(--white); font-size: clamp(1.05rem,1.4vw,1.4rem); letter-spacing: -.035em; line-height: 1.2; text-shadow: 0 2px 18px rgba(0,0,0,.42); }
.reference-grid p { margin: 0 0 22px; color: rgba(255,255,255,.72); font-size: .82rem; }
.reference-grid strong { color: var(--red); font-family: ui-monospace,SFMono-Regular,Menlo,monospace; font-size: .58rem; letter-spacing: .06em; text-transform: uppercase; }
.reference-card > span { color: var(--red); }

.letter { display: grid; grid-template-columns: minmax(180px,.34fr) minmax(0,1fr); background: #181d21; color: var(--white); }
.letter-index { display: flex; flex-direction: column; justify-content: space-between; padding: clamp(54px,6vw,92px) var(--gutter) clamp(54px,6vw,92px); border-right: 1px solid var(--line-light); }
.letter-index span { color: rgba(255,255,255,.12); font-size: clamp(4rem,8vw,9rem); font-weight: 900; letter-spacing: -.08em; line-height: .72; }
.letter-content { max-width: 1100px; padding: clamp(72px,9vw,150px) clamp(38px,8vw,140px); }
.letter h2 { max-width: 900px; margin: 0 0 clamp(50px,6vw,86px); color: var(--red); font-size: clamp(3.2rem,6vw,7.4rem); font-weight: 780; letter-spacing: -.07em; line-height: .92; text-transform: uppercase; }
.letter-copy { max-width: 820px; }
.letter-copy p { margin: 0 0 24px; color: rgba(255,255,255,.68); font-size: clamp(1rem,1.15vw,1.16rem); line-height: 1.85; }
.letter-copy .letter-update { margin-top: 42px; padding: 26px 28px; border-left: 3px solid var(--red); background: rgba(255,255,255,.045); color: rgba(255,255,255,.84); }
.letter-signature { margin: 54px 0 0; font-style: italic; font-weight: 700; }

.contact-actions { align-self: end; }
.contact-actions a { min-width: min(520px,42vw); }
.desktop-nav { gap: clamp(16px,2vw,34px); }
.desktop-nav a { font-size: .66rem; }

@media (max-width: 1240px) {
  .operating-model { grid-template-columns: 1fr; }
  .model-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); border-left: 1px solid var(--line-light); }
  .model-grid article { padding: 28px; border-right: 1px solid var(--line-light); }
  .reference-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .compact-timeline { grid-template-columns: repeat(4,minmax(140px,1fr)); overflow-x: auto; }
  .external-alliance-copy { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .hero-copy { max-width: 100%; }
  .hero h1 { font-size: clamp(3.15rem,14vw,4.8rem); line-height: .87; }
  .hero-lead { margin-top: 28px; font-size: .98rem; line-height: 1.62; }
  .hero-index { min-height: 144px; }
  .hero-index-center { display: flex; align-items: center; justify-content: center; gap: 18px; text-align: left; }
  .hero-index-center strong { font-size: 4.2rem; }
  .hero-index-center span { margin-top: 0; font-size: .66rem; }
  .alliance-pillars { grid-template-columns: 1fr; }
  .alliance-pillars article { min-height: 230px; }
  .operating-model { grid-template-columns: 1fr; gap: 54px; }
  .model-grid { grid-template-columns: 1fr; }
  .model-intro h2 { font-size: clamp(2.8rem,12vw,4rem); }
  .group-network-heading h2 { font-size: clamp(2.8rem,12vw,4rem); }
  .compact-timeline { grid-template-columns: repeat(4,220px); margin-right: calc(var(--gutter) * -1); padding-right: var(--gutter); }
  .reference-heading { display: block; }
  .reference-heading > p:last-child { margin-top: 16px; text-align: left; }
  .reference-grid { grid-template-columns: 1fr; }
  .reference-grid article { min-height: 330px; }
  .letter { grid-template-columns: 1fr; }
  .letter-index { min-height: auto; display: block; padding-bottom: 0; border-right: 0; }
  .letter-index span { display: none; }
  .letter-content { padding-top: 38px; }
  .letter h2 { font-size: clamp(3rem,13vw,4.5rem); }
  .contact-actions a { min-width: 0; }
  .external-alliance-copy { gap: 28px; padding: 34px 24px 40px; }
  .external-alliance-copy h3 { font-size: clamp(2rem, 10vw, 3.1rem); }
}

@media (max-width: 420px) {
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .button { width: 100%; }
  .model-grid article { grid-template-columns: 34px 1fr; gap: 14px; padding: 24px 18px; }
}

/* Szakmai örökség — valódi idővonal */
.compact-timeline {
  position: relative;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-inline: 0;
  padding: 0;
  overflow: visible;
  border: 0;
}
.compact-timeline::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 37px;
  right: 10%;
  left: 10%;
  height: 1px;
  background: linear-gradient(90deg, rgba(21,25,29,.18), var(--red) 50%, rgba(21,25,29,.18));
}
.compact-timeline article {
  position: relative;
  z-index: 1;
  min-height: 190px;
  display: block;
  padding: 78px clamp(16px, 2vw, 32px) 24px;
  border: 0;
  text-align: center;
}
.compact-timeline article::before {
  content: "";
  position: absolute;
  top: 27px;
  left: 50%;
  width: 21px;
  height: 21px;
  border: 5px solid var(--paper-deep);
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0 1px rgba(21,25,29,.34);
  transform: translateX(-50%);
}
.compact-timeline article:last-child::before {
  background: var(--red);
  box-shadow: 0 0 0 1px var(--red), 0 0 0 7px rgba(217,39,47,.1);
}
.compact-timeline strong {
  display: block;
  margin-bottom: 18px;
  font-size: clamp(2.7rem, 4.2vw, 5rem);
  line-height: .9;
}
.compact-timeline span {
  display: block;
  max-width: 190px;
  margin-inline: auto;
}

@media (max-width: 760px) {
  .compact-timeline {
    display: block;
    margin: 0 0 90px;
    padding: 0;
    overflow: visible;
  }
  .compact-timeline::before {
    top: 12px;
    right: auto;
    bottom: 12px;
    left: 10px;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(21,25,29,.18), var(--red) 70%, rgba(21,25,29,.18));
  }
  .compact-timeline article {
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(90px, .35fr) 1fr;
    gap: 22px;
    align-items: center;
    padding: 0 0 38px 44px;
    text-align: left;
  }
  .compact-timeline article:last-child { padding-bottom: 0; }
  .compact-timeline article::before {
    top: 9px;
    left: 10px;
    width: 19px;
    height: 19px;
  }
  .compact-timeline strong { margin: 0; font-size: clamp(2.6rem, 14vw, 4.2rem); }
  .compact-timeline span { max-width: none; margin: 0; }
}

/* HU / EN navigation */
.site-nav { grid-template-columns: auto minmax(0, 1fr) auto auto; gap: 24px; }
.language-switch { display: flex; align-items: center; flex-shrink: 0; border: 1px solid var(--line-light); }
.language-switch a { display: grid; place-items: center; min-width: 44px; min-height: 44px; font-size: .875rem; font-weight: 800; color: var(--white); }
.language-switch a[aria-current="page"] { background: var(--red); }
.language-switch a:hover { background: var(--red-dark); }
.desktop-nav a { white-space: nowrap; }
html[lang="en"] .hero h1 { font-size: clamp(3.2rem, 6.1vw, 7.3rem); line-height: .98; }
@media (max-width: 1280px) {
  .site-nav { grid-template-columns: minmax(0, 1fr) auto auto; }
  .desktop-nav, .nav-cta { display: none; }
  .menu-button { position: relative; display: grid; }
  .mobile-menu { display: block; overflow-y: auto; }
}
@media (max-width: 760px) {
  .site-nav { gap: 10px; padding-inline: 16px; }
  .site-nav .brand { width: min(245px, 100%); }
  html[lang="en"] .hero h1 { font-size: clamp(2.4rem, 10.5vw, 4.8rem); }
}