:root {
  --paper: #f3f0e8;
  --paper-deep: #e7e1d3;
  --ink: #153236;
  --ink-soft: #52676a;
  --coral: #ff6b48;
  --coral-dark: #dd4a2b;
  --green: #c8f780;
  --white: #fffdf8;
  --line: rgba(21, 50, 54, 0.18);
  --shadow: 0 24px 70px rgba(21, 50, 54, 0.12);
  --shell: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: auto; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 7% 4%, rgba(255,107,72,.12), transparent 26rem), var(--paper);
  font: 16px/1.6 Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: .24;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.08'/%3E%3C/svg%3E");
}
::selection { color: var(--white); background: var(--coral-dark); }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
svg { display: block; max-width: 100%; }
.shell { width: min(calc(100% - 48px), var(--shell)); margin-inline: auto; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  color: var(--white);
  background: var(--ink);
  border-radius: 999px;
  transform: translateY(-150%);
  transition: transform 180ms ease;
}
.skip-link:focus { transform: translateY(0); }

/* Navigation */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding: 20px 0;
  border-bottom: 1px solid transparent;
  transition: padding 200ms ease, background 200ms ease, border-color 200ms ease;
}
.site-header.is-scrolled {
  padding: 11px 0;
  background: rgba(243,240,232,.88);
  border-color: var(--line);
  backdrop-filter: blur(16px);
}
.nav-shell { display: flex; align-items: center; justify-content: space-between; }
.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-size: 14px;
  font-weight: 760;
  letter-spacing: -.01em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 37px;
  height: 37px;
  place-items: center;
  color: var(--paper);
  background: var(--ink);
  border-radius: 50% 50% 50% 12%;
  font: italic 20px Georgia, serif;
}
.brand-alias { color: var(--ink-soft); font-weight: 550; }
.site-nav { display: flex; gap: 34px; align-items: center; }
.site-nav a { position: relative; font-size: 13px; font-weight: 700; text-decoration: none; }
.site-nav a:not(.nav-cta)::after {
  position: absolute;
  right: 0;
  bottom: -4px;
  left: 0;
  height: 1px;
  content: "";
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: 9px 15px; color: var(--paper); background: var(--ink); border-radius: 999px; }
.menu-button { display: none; }

/* Hero */
.hero { min-height: 100svh; padding: 154px 0 92px; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0,1.1fr) minmax(420px,.9fr);
  gap: 70px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 18px;
  color: var(--coral-dark);
  font-size: 12px;
  font-weight: 820;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 820px;
  margin: 0;
  font: 400 clamp(3.5rem,7vw,7.25rem)/.92 Georgia, "Times New Roman", serif;
  letter-spacing: -.067em;
}
.hero h1 em { color: var(--coral-dark); font-weight: 400; }
.hero-intro {
  max-width: 670px;
  margin: 38px 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.12rem,2vw,1.45rem);
  line-height: 1.52;
}
.hero-actions, .contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  display: inline-flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 760;
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--white); background: var(--ink); }
.button-primary:hover { background: var(--coral-dark); }
.button-quiet { border-color: var(--line); }
.button-quiet:hover { background: var(--white); border-color: var(--ink); }
.quick-facts {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  max-width: 680px;
  padding-top: 27px;
  margin: 54px 0 0;
  border-top: 1px solid var(--line);
}
.quick-facts div { padding-right: 20px; }
.quick-facts dt {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.quick-facts dd { margin: 5px 0 0; font-size: 14px; font-weight: 720; }

/* Hero route map */
.hero-visual {
  position: relative;
  min-height: 640px;
  background: var(--ink);
  border-radius: 200px 200px 28px 28px;
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
}
.hero-visual::before {
  position: absolute;
  inset: 15px;
  pointer-events: none;
  content: "";
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 186px 186px 18px 18px;
}
.hero-visual svg { position: absolute; inset: 25px 0 auto; width: 100%; height: 580px; }
.route {
  fill: none;
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 9 16;
  animation: route-move 16s linear infinite;
}
.route-coral { stroke: var(--coral); }
.route-green { stroke: var(--green); animation-direction: reverse; }
.route-ink { stroke: rgba(255,253,248,.5); animation-duration: 23s; }
.station circle { fill: var(--ink); stroke: var(--white); stroke-width: 5; }
.station-large circle:first-child { fill: var(--coral); stroke: var(--white); }
.station-large circle:last-child { fill: var(--white); stroke: none; }
.map-label, .map-word, .map-card { position: absolute; z-index: 2; }
.map-label {
  top: 77px;
  left: 50%;
  color: rgba(255,255,255,.55);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .22em;
  text-transform: uppercase;
  transform: translateX(-50%);
}
.map-word {
  padding: 7px 12px;
  color: var(--ink);
  background: var(--white);
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(0,0,0,.2);
  font-size: 12px;
  font-weight: 800;
}
.word-transport { top: 179px; left: 28px; }
.word-safety { top: 317px; right: 20px; }
.word-systems { right: 28px; bottom: 147px; background: var(--green); }
.map-card {
  right: 28px;
  bottom: 28px;
  left: 28px;
  display: flex;
  gap: 13px;
  align-items: center;
  padding: 17px 19px;
  color: var(--white);
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 16px;
  backdrop-filter: blur(10px);
}
.map-card div span {
  display: block;
  color: rgba(255,255,255,.58);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.map-card strong { display: block; margin-top: 1px; font-size: 13px; }
.pulse-dot {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Shared sections */
.section { padding: 130px 0; }
.section-heading {
  display: grid;
  grid-template-columns: 1.1fr .7fr;
  gap: 100px;
  align-items: end;
  margin-bottom: 66px;
}
.section-heading h2, .about h2, .contact h2 {
  margin: 0;
  font: 400 clamp(2.7rem,5vw,5rem)/1 Georgia, "Times New Roman", serif;
  letter-spacing: -.055em;
}
.section-heading > p {
  max-width: 460px;
  margin: 0 0 5px;
  color: var(--ink-soft);
  font-size: 1.04rem;
}

/* Work */
.work { color: var(--white); background: var(--ink); }
.work .eyebrow { color: var(--green); }
.work .section-heading > p { color: rgba(255,255,255,.65); }
.project-list { border-top: 1px solid rgba(255,255,255,.18); }
.project {
  display: grid;
  grid-template-columns: 70px minmax(0,1fr);
  gap: 24px;
  padding: 48px 0;
  border-bottom: 1px solid rgba(255,255,255,.18);
}
.project-featured {
  grid-template-columns: 70px minmax(0,.9fr) minmax(320px,.7fr);
  gap: 34px;
  padding: 58px 0 70px;
}
.project-number {
  padding-top: 5px;
  color: var(--green);
  font: italic 19px Georgia, serif;
}
.project-kicker {
  margin-bottom: 8px;
  color: rgba(255,255,255,.55);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.project h3 {
  margin: 0;
  font: 400 clamp(2rem,4vw,3.8rem)/1 Georgia, "Times New Roman", serif;
  letter-spacing: -.045em;
}
.project p {
  max-width: 690px;
  margin: 20px 0 0;
  color: rgba(255,255,255,.72);
  font-size: 1.02rem;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 7px; padding: 0; margin: 22px 0 0; list-style: none; }
.tag-list li {
  padding: 5px 10px;
  color: rgba(255,255,255,.75);
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
}
.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-decoration: none;
}
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  align-items: center;
  margin-top: 25px;
}
.demo-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  min-height: 43px;
  padding: 0 17px;
  color: var(--ink);
  background: var(--coral);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 820;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease;
}
.demo-link-green { background: var(--green); }
.demo-link:hover { background: var(--white); transform: translateY(-2px); }
.text-link span, .demo-link span, .article-arrow { transition: transform 180ms ease; }
.text-link:hover span, .demo-link:hover span, .article-row:hover .article-arrow { transform: translate(3px,-3px); }
.project-status {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  color: var(--green);
  font-size: 12px;
  font-weight: 760;
}
.project-status span { width: 7px; height: 7px; background: currentColor; border-radius: 50%; }
.project-status-muted { color: rgba(255,255,255,.52); }
.project-art {
  position: relative;
  min-height: 340px;
  overflow: hidden;
  background: var(--coral);
  border-radius: 28px 28px 110px 28px;
}
.city-grid {
  position: absolute;
  inset: 0;
  opacity: .22;
  background-image: linear-gradient(rgba(21,50,54,.7) 2px,transparent 2px), linear-gradient(90deg,rgba(21,50,54,.7) 2px,transparent 2px);
  background-size: 44px 44px;
  transform: rotate(9deg) scale(1.3);
}
.project-art svg { position: absolute; inset: 20px 0 0; width: 100%; height: 90%; }
.mini-route { fill: none; stroke: var(--ink); stroke-width: 7; stroke-linecap: round; stroke-dasharray: 4 13; }
.project-art svg > circle { fill: var(--paper); stroke: var(--ink); stroke-width: 5; }
.bus { fill: var(--paper); stroke: var(--ink); stroke-width: 5; }
.bus rect:not(:first-child) { fill: var(--ink); stroke: none; }
.bus circle { fill: var(--ink); stroke: var(--paper); stroke-width: 4; }
.art-caption {
  position: absolute;
  right: 20px;
  bottom: 20px;
  padding: 7px 11px;
  color: var(--paper);
  background: var(--ink);
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}

/* About */
.about { background: var(--paper); }
.about-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 110px; }
.about-sticky { position: sticky; top: 110px; align-self: start; }
.about-lead {
  margin: 0;
  font: 400 clamp(1.8rem,3.2vw,3rem)/1.25 Georgia, "Times New Roman", serif;
  letter-spacing: -.038em;
}
.about-copy > p:not(.about-lead) { max-width: 680px; margin: 32px 0 0; color: var(--ink-soft); font-size: 1.05rem; }
.capability-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  margin-top: 70px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.capability-grid > div { min-height: 210px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.capability-grid span { color: var(--coral-dark); font: italic 16px Georgia, serif; }
.capability-grid h3 { margin: 29px 0 8px; font-size: 16px; letter-spacing: -.015em; }
.capability-grid p { margin: 0; color: var(--ink-soft); font-size: 13px; }

/* Writing */
.writing { background: var(--paper-deep); }
.article-list { border-top: 1px solid var(--line); }
.article-row {
  display: grid;
  grid-template-columns: 70px minmax(0,1fr) 190px 25px;
  gap: 20px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding 180ms ease, color 180ms ease;
}
.article-row:hover { padding-right: 12px; padding-left: 12px; color: var(--coral-dark); }
.article-year, .article-topic {
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.article-title { font: 400 clamp(1.2rem,2vw,1.65rem) Georgia, serif; letter-spacing: -.025em; }
.article-arrow { justify-self: end; font-size: 20px; }

/* Contact and footer */
.contact { color: var(--white); background: var(--coral); }
.contact-card { display: grid; justify-items: start; }
.contact .eyebrow { color: var(--ink); }
.contact h2 { max-width: 980px; color: var(--ink); font-size: clamp(3.2rem,6.8vw,7rem); }
.contact-card > p:not(.eyebrow) { max-width: 700px; margin: 32px 0 0; color: rgba(21,50,54,.78); font-size: 1.1rem; }
.button-light { color: var(--ink); background: var(--white); }
.button-light:hover { background: var(--green); }
.button-outline-light { color: var(--ink); border-color: rgba(21,50,54,.4); }
.button-outline-light:hover { background: rgba(255,255,255,.22); border-color: var(--ink); }
.site-footer { padding: 70px 0 55px; color: var(--white); background: var(--ink); }
.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr .4fr; gap: 60px; align-items: start; }
.footer-brand .brand-mark { color: var(--ink); background: var(--green); }
.footer-grid > div:first-child > p { max-width: 470px; margin: 23px 0 0; color: rgba(255,255,255,.52); font-size: 12px; }
.footer-links { display: grid; gap: 12px; }
.footer-links a { color: rgba(255,255,255,.7); font-size: 13px; font-weight: 700; text-decoration: none; }
.footer-links a:hover { color: var(--green); }
.copyright { margin: 0; color: rgba(255,255,255,.52); font-size: 11px; text-align: right; }

/* Motion */
.reveal {
  opacity: 1;
  transform: none;
}
.reveal.is-visible { animation: reveal-in 650ms cubic-bezier(.22,1,.36,1) both; }
@keyframes route-move { to { stroke-dashoffset: -250; } }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(200,247,128,0); } 100% { box-shadow: 0 0 0 0 rgba(200,247,128,0); } }
@keyframes reveal-in {
  from { transform: translateY(18px); }
  to { transform: translateY(0); }
}

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: 800px; }
  .hero-visual { width: min(100%,580px); min-height: 600px; margin: 0 auto; }
  .section-heading, .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-sticky { position: static; }
  .project-featured { grid-template-columns: 55px minmax(0,1fr); }
  .project-featured .project-art { grid-column: 2; }
  .footer-grid { grid-template-columns: 1.2fr .6fr; }
  .copyright { grid-column: 1/-1; text-align: left; }
}

@media (max-width: 720px) {
  .shell { width: min(calc(100% - 30px),var(--shell)); }
  .site-header { padding: 13px 0; }
  .brand-alias { display: none; }
  .menu-button {
    display: grid;
    width: 42px;
    height: 42px;
    padding: 0;
    place-content: center;
    gap: 6px;
    color: var(--ink);
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 50%;
  }
  .menu-button span:not(.sr-only) { display: block; width: 17px; height: 1px; background: currentColor; transition: transform 180ms ease; }
  .menu-button[aria-expanded="true"] span:nth-of-type(2) { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:nth-of-type(3) { transform: translateY(-3.5px) rotate(-45deg); }
  .site-nav {
    position: fixed;
    top: 68px;
    right: 15px;
    left: 15px;
    display: grid;
    gap: 0;
    padding: 10px;
    visibility: hidden;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }
  .site-nav.is-open { visibility: visible; opacity: 1; transform: translateY(0); }
  .site-nav a { padding: 13px 14px; }
  .nav-cta { margin-top: 4px; text-align: center; }
  .hero { min-height: auto; padding: 116px 0 78px; }
  .hero h1 { font-size: clamp(3.35rem,16vw,5.5rem); }
  .quick-facts { grid-template-columns: 1fr; gap: 15px; }
  .quick-facts div { display: grid; grid-template-columns: 120px 1fr; gap: 15px; }
  .quick-facts dd { margin: 0; }
  .hero-visual { min-height: 470px; border-radius: 150px 150px 24px 24px; }
  .hero-visual::before { border-radius: 138px 138px 14px 14px; }
  .hero-visual svg { top: -18px; height: 470px; }
  .word-transport { top: 130px; }
  .word-safety { top: 233px; }
  .word-systems { bottom: 117px; }
  .section { padding: 88px 0; }
  .section-heading { margin-bottom: 43px; }
  .project, .project-featured { grid-template-columns: 36px minmax(0,1fr); gap: 14px; padding: 38px 0; }
  .project-featured .project-art { grid-column: 1/-1; min-height: 280px; margin-top: 12px; }
  .project-number { font-size: 15px; }
  .capability-grid { grid-template-columns: 1fr; }
  .capability-grid > div { min-height: auto; }
  .article-row { grid-template-columns: 54px minmax(0,1fr) 20px; gap: 10px; }
  .article-topic { display: none; }
  .contact h2 { font-size: clamp(3rem,14vw,5rem); }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  :root { --paper: #fff; --ink: #111; --ink-soft: #444; }
  .site-header, .hero-visual, .hero-actions, .project-art, .contact, .site-footer { display: none !important; }
  .hero { min-height: 0; padding: 30px 0; }
  .section { padding: 28px 0; }
  .work { color: #111; background: #fff; }
  .work .section-heading > p, .project p, .project-kicker, .tag-list li { color: #444; }
  .project, .project-list, .tag-list li { border-color: #ccc; }
  .text-link, .project-number, .project-status { color: #111; }
  .reveal { opacity: 1; transform: none; }
}