:root {
  --bg: #000000;
  --text: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.72);
  --line: rgba(255, 255, 255, 0.35);
  --font-display: "Cy Grotesk Key", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Open Sauce One", system-ui, sans-serif;
  --max: 1280px;
  --nav-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

/* Nav */
.site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(20px, 4vw, 48px);
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.92) 0%, rgba(0, 0, 0, 0) 100%);
  pointer-events: none;
}

.site-nav > * {
  pointer-events: auto;
}

.nav-brand {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1.35;
}

.nav-brand small {
  display: block;
  font-weight: 300;
  opacity: 0.85;
}

.nav-year {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-links {
  display: none;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-links a {
  opacity: 0.75;
  transition: opacity 0.2s;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.active {
  opacity: 1;
}

@media (min-width: 900px) {
  .nav-links {
    display: flex;
  }
}

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 42% 58%;
  }
}

.hero-left {
  display: grid;
  grid-template-rows: 1fr 1fr;
  min-height: 50vh;
}

@media (min-width: 900px) {
  .hero-left {
    min-height: 100vh;
  }
}

.hero-sky {
  background: url("../assets/images/hero-cover.jpg") center/cover no-repeat;
  min-height: 28vh;
}

.hero-texture {
  background: url("../assets/images/hero-texture.jpg") center/cover no-repeat;
  min-height: 28vh;
}

.hero-right {
  position: relative;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: calc(var(--nav-h) + 32px) clamp(24px, 5vw, 64px) 48px;
  min-height: 50vh;
}

.hero-arch {
  position: absolute;
  right: clamp(16px, 4vw, 48px);
  top: 50%;
  transform: translateY(-50%);
  width: min(42vw, 320px);
  aspect-ratio: 1;
  object-fit: cover;
  filter: grayscale(100%);
  opacity: 0.95;
}

.hero-title {
  position: relative;
  z-index: 2;
  font-size: clamp(2rem, 6vw, 4.5rem);
  line-height: 1.05;
  margin: 0;
  max-width: 14ch;
}

/* TOC */
.section-toc {
  padding: 100px clamp(24px, 5vw, 64px);
  display: grid;
  gap: 48px;
}

@media (min-width: 900px) {
  .section-toc {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }
}

.toc-heading {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin: 0 0 40px;
  line-height: 1;
}

.toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.toc-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.1rem, 2.5vw, 1.75rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.toc-list a {
  transition: opacity 0.2s;
}

.toc-list a:hover {
  opacity: 0.7;
}

.toc-num {
  font-family: var(--font-body);
  font-size: 0.85em;
  opacity: 0.9;
}

.toc-visual img {
  width: 100%;
  height: auto;
  max-height: 85vh;
  object-fit: cover;
  filter: grayscale(100%);
}

/* Section blocks */
.section {
  padding: 88px clamp(24px, 5vw, 64px);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-label {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin: 0 0 28px;
  line-height: 1.05;
}

.section-text {
  max-width: 62ch;
  color: var(--text-dim);
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: 300;
  margin: 0 0 32px;
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 32px;
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
}

.contact-row span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* Divisions grid */
.divisions {
  display: grid;
  gap: 64px;
}

.division {
  display: grid;
  gap: 20px;
}

@media (min-width: 768px) {
  .division {
    grid-template-columns: 200px 1fr;
    gap: 40px;
    align-items: start;
  }
}

.division h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin: 0;
  line-height: 1.1;
}

/* Intro banner */
.intro-banner {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  padding: 88px clamp(24px, 5vw, 64px);
  overflow: hidden;
}

.intro-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../assets/images/intro-bg.jpg") center/cover no-repeat;
  filter: grayscale(100%) brightness(0.45);
}

.intro-banner .content {
  position: relative;
  z-index: 1;
  max-width: var(--max);
}

.intro-banner h2 {
  font-size: clamp(2rem, 5.5vw, 4rem);
  line-height: 1.08;
  margin: 0 0 16px;
  max-width: 16ch;
}

.intro-banner p {
  font-size: 14px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.8;
  margin: 0;
}

/* Vision */
.vision-grid {
  display: grid;
  gap: 48px;
}

@media (min-width: 900px) {
  .vision-grid {
    grid-template-columns: 1fr 1fr;
    gap: 64px;
  }
}

.vision-grid h3 {
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 12px;
  font-family: var(--font-body);
  font-weight: 600;
}

.vision-grid p {
  margin: 0;
  color: var(--text-dim);
  font-weight: 300;
}

.vision-visual {
  margin-top: 48px;
}

.vision-visual img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  filter: grayscale(100%);
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 24px;
  margin-top: 40px;
}

@media (min-width: 700px) {
  .stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat .num {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1;
  margin-bottom: 8px;
}

.stat .lbl {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}

/* Portfolio */
.portfolio-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 64px;
}

.portfolio-gallery img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter 0.3s, transform 0.4s;
}

.portfolio-gallery img:hover {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.projects {
  display: grid;
  gap: 48px;
}

.project-card {
  display: grid;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}

@media (min-width: 800px) {
  .project-card {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
  }
}

.project-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.project-meta h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  margin: 0 0 16px;
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-body);
  font-weight: 600;
}

.project-meta dl {
  margin: 0;
  display: grid;
  gap: 8px;
  font-size: 14px;
}

.project-meta dt {
  color: var(--text-dim);
  font-weight: 300;
  display: inline;
}

.project-meta dt::after {
  content: " ";
}

.project-meta dd {
  display: inline;
  margin: 0;
  font-weight: 500;
}

/* Clients */
.clients-wrap {
  position: relative;
  padding: 88px clamp(24px, 5vw, 64px);
  overflow: hidden;
}

.clients-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../assets/images/clients-bg.jpg") center/cover no-repeat;
  opacity: 0.15;
}

.clients-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
}

.clients-heading {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin: 0 0 40px;
}

.client-logos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 28px 32px;
  align-items: center;
}

.client-logos img {
  max-height: 56px;
  width: auto;
  max-width: 100%;
  margin: 0 auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

/* Footer */
.site-footer {
  padding: 48px clamp(24px, 5vw, 64px) 64px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: flex-end;
  font-size: 13px;
}

.site-footer .display {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  opacity: 0.7;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

.footer-links a:hover {
  opacity: 1;
}

/* Scroll cue */
.scroll-cue {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  width: 44px;
  height: 44px;
  border: 1px solid var(--text);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.scroll-cue:hover {
  background: var(--text);
  color: var(--bg);
}

.scroll-cue svg {
  width: 18px;
  height: 18px;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}