:root {
  --green: #4f5a54;
  --green-dark: #3f4944;
  --carbon: #151815;
  --white: #ffffff;
  --paper: #f4f5f3;
  --line: rgba(21, 24, 21, 0.18);
  --line-light: rgba(255, 255, 255, 0.24);
  --page: min(92vw, 1480px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--carbon);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 200; padding: .75rem 1rem; background: #fff; color: #151815; }
.skip-link:focus { top: 1rem; }

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  padding: 0 4vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.18);
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.site-header.scrolled { background: rgba(244,245,243,.94); color: var(--carbon); border-color: var(--line); backdrop-filter: blur(14px); }
.brand { font-weight: 700; font-size: 1.25rem; letter-spacing: -.05em; }
.brand-lockup { position: relative; display: block; width: 9.5rem; height: 1.75rem; overflow: hidden; flex: 0 0 auto; }
.brand-lockup img { position: absolute; left: 50%; top: 50%; width: 13.75rem; max-width: none; height: auto; translate: -50% -50%; }
.brand-lockup .logo-on-white { opacity: 0; }
.site-header.scrolled .brand-lockup .logo-on-green { opacity: 0; }
.site-header.scrolled .brand-lockup .logo-on-white { opacity: 1; }
.site-nav { display: flex; align-items: center; gap: clamp(1.2rem, 2.5vw, 3rem); font-size: .85rem; }
.site-nav a { position: relative; }
.site-nav a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -.35rem; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .25s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { padding: .68rem 1rem; border: 1px solid currentColor; }
.menu-button { display: none; border: 0; background: transparent; color: inherit; padding: .5rem 0; }

.hero {
  min-height: 100svh;
  padding: 8.5rem 4vw 3.5rem;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 18%, rgba(255,255,255,.09), transparent 22rem),
    linear-gradient(135deg, var(--green-dark), var(--green));
  display: grid;
  grid-template-columns: 1fr 2.2fr;
  grid-template-rows: auto 1fr auto;
  column-gap: 4vw;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .11;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, transparent 0, transparent calc(20vw - 1px), rgba(255,255,255,.45) 20vw);
}
.hero-meta { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 1rem; padding-bottom: 1.3rem; border-bottom: 1px solid var(--line-light); font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; }
.status { display: flex; align-items: center; gap: .5rem; }
.status i { width: .48rem; height: .48rem; border-radius: 50%; background: #dfe6df; box-shadow: 0 0 0 .25rem rgba(255,255,255,.08); }
.hero-copy { grid-column: 1 / -1; align-self: center; padding: 8vh 0 4vh; }
.eyebrow { margin: 0 0 1.3rem; font-size: .72rem; text-transform: uppercase; letter-spacing: .24em; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: clamp(3.5rem, 9vw, 10rem); font-weight: 500; line-height: .82; letter-spacing: -.075em; }
h1 em, h2 em { color: transparent; -webkit-text-stroke: 1.5px currentColor; font-style: normal; }
.hero-lede { max-width: 38rem; margin: 2.5rem 0 0 auto; font-size: clamp(1.08rem, 1.45vw, 1.4rem); line-height: 1.45; }
.hero-actions { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.button { min-height: 3.35rem; padding: .8rem 1.1rem; display: inline-flex; align-items: center; justify-content: space-between; gap: 2.5rem; border: 1px solid currentColor; font-size: .88rem; transition: background .2s, color .2s, transform .2s; }
.button:hover, .button:focus-visible { transform: translateY(-2px); }
.button-light { background: var(--white); color: var(--carbon); }
.text-link { font-size: .84rem; padding: .75rem 0; border-bottom: 1px solid currentColor; }
.frame-index { position: absolute; right: 1rem; top: 50%; translate: 0 -50%; display: flex; flex-direction: column; gap: 4rem; writing-mode: vertical-rl; font-size: .65rem; letter-spacing: .18em; opacity: .55; }

.section { width: 100%; padding: clamp(5rem, 10vw, 10rem) 4vw; }
.section-label { display: flex; gap: .85rem; align-items: center; margin-bottom: clamp(3rem, 7vw, 7rem); font-size: .72rem; text-transform: uppercase; letter-spacing: .16em; }
.section-label span { width: 1.8rem; height: 1.8rem; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; }
.section-label.light { color: rgba(255,255,255,.82); }
h2 { font-size: clamp(2.7rem, 6vw, 6.5rem); line-height: .95; letter-spacing: -.06em; font-weight: 500; }

.manifesto { background: var(--paper); }
.manifesto-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 8vw; align-items: start; }
.manifesto-copy { padding-top: .5rem; max-width: 36rem; }
.manifesto-copy p { font-size: clamp(1.08rem, 1.4vw, 1.35rem); }
.manifesto-copy p + p { margin-top: 2rem; color: #58605b; }
.principles { margin-top: 7rem; padding-top: 1.2rem; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); font-size: .75rem; letter-spacing: .18em; text-transform: uppercase; }

.insight { background: var(--carbon); color: var(--white); }
.insight-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 10vw; }
.insight h2 { max-width: 10ch; }
.process-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line-light); }
.process-list li { display: grid; grid-template-columns: 3rem 1fr; gap: 1rem; padding: 1.35rem 0; border-bottom: 1px solid var(--line-light); }
.process-list li > span { font-size: .7rem; opacity: .55; }
.process-list strong { display: block; margin-bottom: .35rem; font-size: 1.25rem; font-weight: 500; }
.process-list p { margin: 0; color: rgba(255,255,255,.64); }

.services { background: var(--white); }
.services-intro { display: grid; grid-template-columns: 1.5fr 1fr; gap: 8vw; align-items: end; }
.services-intro p { max-width: 34rem; font-size: 1.15rem; }
.service-grid { margin-top: 6rem; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.service-grid article { min-height: 20rem; padding: 1.25rem; border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.service-grid article:first-child { border-left: 1px solid var(--line); }
.service-grid article > span { font-size: .7rem; color: #667069; }
.service-grid h3 { margin: auto 0 1rem; font-size: 1.5rem; font-weight: 500; }
.service-grid p { margin-bottom: 0; color: #58605b; }

.experience { background: var(--green); color: var(--white); }
.experience-head { display: grid; grid-template-columns: 1.5fr 1fr; gap: 8vw; align-items: end; }
.experience-head h2 { max-width: 14ch; }
.experience-head p { max-width: 32rem; font-size: 1.15rem; }
.sector-list { margin-top: 6rem; border-top: 1px solid var(--line-light); }
.sector-list div { padding: 1.4rem 0; display: flex; justify-content: space-between; align-items: center; gap: 2rem; border-bottom: 1px solid var(--line-light); }
.sector-list span { font-size: clamp(1.45rem, 3vw, 3rem); letter-spacing: -.04em; }
.sector-list small { color: rgba(255,255,255,.66); text-align: right; }
.client-line { margin-top: 5rem; display: flex; flex-wrap: wrap; gap: 1rem 2.6rem; color: rgba(255,255,255,.72); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }

.about { background: var(--paper); }
.about-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 8vw; }
.about-grid > div { max-width: 34rem; }
.about-grid p { font-size: 1.15rem; }
.signature { margin-top: 4rem; padding-top: 1rem; border-top: 1px solid var(--line); font-weight: 500; }
.signature small { color: #626a65; font-weight: 400; }

.contact { min-height: 80vh; background: var(--white); display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.contact-kicker { margin-bottom: 2.5rem; font-size: .75rem; text-transform: uppercase; letter-spacing: .18em; }
.contact h2 { font-size: clamp(4rem, 10vw, 11rem); margin-bottom: 3rem; }
.button-dark { background: var(--carbon); color: var(--white); }

.site-footer { min-height: 10rem; padding: 2rem 4vw; background: var(--carbon); color: var(--white); display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; align-items: end; font-size: .78rem; }
.site-footer p { margin: 0; color: rgba(255,255,255,.6); }
.footer-brand { font-size: 1.6rem; }

@media (max-width: 900px) {
  .site-header { height: 68px; }
  .menu-button { display: flex; align-items: center; gap: .75rem; }
  .menu-icon, .menu-icon::before { display: block; width: 1.5rem; height: 1px; background: currentColor; transition: transform .2s; }
  .menu-icon { position: relative; }
  .menu-icon::before { content: ""; position: absolute; top: -.4rem; }
  .menu-button[aria-expanded="true"] .menu-icon { transform: rotate(45deg); }
  .menu-button[aria-expanded="true"] .menu-icon::before { top: 0; transform: rotate(90deg); }
  .site-nav { position: fixed; inset: 68px 0 auto; padding: 1.5rem 4vw 2rem; display: none; align-items: stretch; flex-direction: column; gap: 0; background: var(--paper); color: var(--carbon); border-bottom: 1px solid var(--line); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 1rem 0; border-bottom: 1px solid var(--line); }
  .nav-cta { border: 0; }
  .hero { grid-template-columns: 1fr; padding-top: 7rem; }
  .hero-meta span:nth-child(2) { display: none; }
  .hero-lede { margin-left: 0; max-width: 31rem; }
  .frame-index { display: none; }
  .manifesto-grid, .insight-layout, .services-intro, .experience-head, .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .principles { grid-template-columns: repeat(2, 1fr); gap: 1.2rem 1rem; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-grid article:nth-child(3) { border-left: 1px solid var(--line); }
  .site-footer { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .hero { padding-bottom: 2rem; }
  .hero-meta { justify-content: space-between; }
  .hero-copy { padding-top: 12vh; }
  h1 { font-size: clamp(3.25rem, 17vw, 5.25rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .text-link { align-self: flex-start; }
  .section { padding-left: 5vw; padding-right: 5vw; }
  .section-label { margin-bottom: 3.5rem; }
  .principles { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .service-grid article, .service-grid article:first-child, .service-grid article:nth-child(3) { min-height: 14rem; border-left: 1px solid var(--line); }
  .sector-list div { align-items: flex-start; flex-direction: column; gap: .4rem; }
  .sector-list small { text-align: left; }
  .site-footer { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}