:root {
  --black: #0F0F10;
  --black-deep: #080809;
  --surface: #151516;
  --surface-soft: #1B1B1D;
  --white: #F5F5F3;
  --muted: rgba(245,245,243,.66);
  --muted-soft: rgba(245,245,243,.46);
  --line: rgba(245,245,243,.105);
  --line-strong: rgba(245,245,243,.18);
  --accent: #EB4E27;
  --container: min(1560px, calc(100vw - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--black); }
body {
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
::selection { background: rgba(235,78,39,.32); color: var(--white); }

.container {
  width: var(--container);
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: 86px;
  display: flex;
  align-items: center;
  transition: height .45s ease, background .45s ease, border-color .45s ease, backdrop-filter .45s ease;
}
.site-header.is-scrolled {
  height: 74px;
  background: rgba(15,15,16,.76);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.header-inner {
  width: var(--container);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.brand img {
  height: 29px;
  width: auto;
  max-width: 232px;
  opacity: .94;
}
.nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2vw, 34px);
}
.nav a {
  color: rgba(245,245,243,.76);
  font-size: 11px;
  letter-spacing: .145em;
  text-transform: uppercase;
  transition: color .25s ease;
}
.nav a:hover,
.nav a.active { color: var(--white); }
.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  background: transparent;
  color: var(--white);
  border: 1px solid var(--line);
}

.hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 520px at 74% 23%, rgba(245,245,243,.045), transparent 64%),
    radial-gradient(720px 420px at 10% 8%, rgba(235,78,39,.035), transparent 62%),
    linear-gradient(180deg, #080809 0%, #0d0d0e 46%, #0f0f10 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .38;
  pointer-events: none;
  background:
    linear-gradient(rgba(245,245,243,.033) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245,245,243,.027) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: radial-gradient(circle at 34% 26%, black 0%, transparent 58%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 220px;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(15,15,16,0), rgba(15,15,16,.92) 64%, #0F0F10);
}
.hero-pattern {
  position: absolute;
  top: 74px;
  left: -48px;
  width: min(740px, 54vw);
  height: min(560px, 60vh);
  background-image: url("../img/rspectra-mark-white.png");
  background-repeat: repeat;
  background-size: 112px auto;
  opacity: .034;
  mask-image: linear-gradient(135deg, #000 0%, rgba(0,0,0,.94) 34%, rgba(0,0,0,.48) 66%, transparent 100%);
  animation: patternBreath 10s ease-in-out infinite alternate;
}
.hero-monolith {
  position: absolute;
  right: clamp(-185px, -8vw, -64px);
  top: clamp(118px, 18vh, 184px);
  width: min(720px, 48vw);
  aspect-ratio: 384/362;
  transform-style: preserve-3d;
  perspective: 1600px;
  pointer-events: none;
  opacity: .92;
}
.hero-monolith .layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform-origin: center;
}
.hero-monolith .back {
  opacity: .026;
  filter: blur(1px);
  transform: perspective(1600px) rotateY(-34deg) rotateX(8deg) translate3d(54px, 42px, -52px) scale(1.06);
}
.hero-monolith .mid {
  opacity: .052;
  transform: perspective(1600px) rotateY(-34deg) rotateX(8deg) translate3d(28px, 21px, -22px) scale(1.028);
}
.hero-monolith .front {
  opacity: .132;
  filter: drop-shadow(0 54px 120px rgba(0,0,0,.48));
  transform: perspective(1600px) rotateY(-34deg) rotateX(8deg);
}
.hero-monolith .edge {
  position: absolute;
  inset: 12% 24% 12% 2%;
  background: linear-gradient(135deg, rgba(245,245,243,.17), rgba(245,245,243,.034) 42%, rgba(245,245,243,0) 72%);
  mix-blend-mode: screen;
  opacity: .24;
  transform: perspective(1600px) rotateY(-34deg) rotateX(8deg);
}
.hero-content {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  padding-top: 150px;
  padding-bottom: 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(130px,.28fr) minmax(0,1fr) minmax(220px,.42fr);
  align-items: start;
  gap: clamp(28px, 4vw, 76px);
}
.hero-brand {
  display: grid;
  gap: 22px;
}
.hero-brand img {
  height: 24px;
  width: auto;
  max-width: 180px;
  opacity: .92;
}
.micro {
  margin: 0;
  color: var(--muted-soft);
  font-size: 11px;
  line-height: 1.85;
  letter-spacing: .17em;
  text-transform: uppercase;
}
.kicker {
  margin: 0 0 18px;
  color: rgba(245,245,243,.55);
  font-size: 11px;
  line-height: 1.7;
  letter-spacing: .21em;
  text-transform: uppercase;
}
.hero-title {
  margin: 0;
  max-width: 1000px;
  font-weight: 500;
  font-size: clamp(46px, 6.65vw, 104px);
  line-height: .94;
  letter-spacing: -.06em;
  text-wrap: balance;
}
.hero-title span { display: block; }
.hero-copy {
  max-width: 725px;
  margin: 30px 0 0;
  color: rgba(245,245,243,.72);
  font-size: clamp(16px, 1.22vw, 19px);
  line-height: 1.95;
}
.hero-copy strong {
  color: var(--white);
  font-weight: 500;
}
.claim {
  color: var(--white);
  letter-spacing: .02em;
}
.disciplines {
  display: grid;
  gap: 18px;
}
.disciplines-label {
  margin: 0;
  color: rgba(245,245,243,.38);
  font-size: 11px;
  letter-spacing: .21em;
  text-transform: uppercase;
}
.disciplines ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 15px;
}
.disciplines li {
  color: rgba(245,245,243,.84);
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: .092em;
  text-transform: uppercase;
}
.disciplines li::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 24px rgba(235,78,39,.42);
  transform: translateY(-1px);
}
.hero-bottom {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-top: clamp(64px, 10vh, 132px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}
.scroll-indicator {
  color: rgba(245,245,243,.5);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(245,245,243,.16);
  min-height: 54px;
  padding: 0 24px;
  color: rgba(245,245,243,.9);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  transition: border-color .25s ease, color .25s ease, background .25s ease, transform .25s ease;
}
.cta:hover {
  color: var(--accent);
  border-color: rgba(235,78,39,.78);
  background: rgba(235,78,39,.055);
  transform: translateY(-2px);
}
.cta-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 34px;
}
.cta.secondary { color: var(--muted); }

.section {
  padding: clamp(88px, 12vw, 172px) 0;
  border-bottom: 1px solid var(--line);
}
.section.is-soft {
  background:
    radial-gradient(760px 420px at 80% 12%, rgba(245,245,243,.025), transparent 68%),
    #0f0f10;
}
.section-grid {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  gap: clamp(40px, 7vw, 118px);
}
.section-label {
  margin: 0;
  color: rgba(245,245,243,.42);
  font-size: 11px;
  letter-spacing: .235em;
  text-transform: uppercase;
}
.section-title {
  margin: 0;
  max-width: 1060px;
  font-weight: 500;
  font-size: clamp(36px, 5vw, 82px);
  line-height: 1;
  letter-spacing: -.052em;
  text-wrap: balance;
}
.section-copy {
  max-width: 840px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.95;
}
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  margin-top: 62px;
}
.metric {
  padding: 26px;
  min-height: 150px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.metric strong {
  display: block;
  font-size: clamp(34px, 4vw, 64px);
  font-weight: 500;
  letter-spacing: -.055em;
}
.metric span {
  display: block;
  margin-top: 12px;
  color: var(--muted-soft);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.cards {
  margin-top: 58px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.card {
  min-height: 260px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,.012);
  transition: background .25s ease, transform .25s ease;
}
.card:hover {
  background: rgba(235,78,39,.035);
  transform: translateY(-2px);
}
.card .num {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: .2em;
}
.card h3 {
  margin: 54px 0 16px;
  font-size: 23px;
  font-weight: 500;
  letter-spacing: -.03em;
}
.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}
.work-list {
  margin-top: 60px;
  display: grid;
  border-top: 1px solid var(--line);
}
.work-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}
.work-item h3 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3vw, 48px);
  font-weight: 500;
  letter-spacing: -.045em;
}
.work-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}
.tag {
  color: rgba(245,245,243,.5);
  font-size: 11px;
  letter-spacing: .19em;
  text-transform: uppercase;
  white-space: nowrap;
}
.process {
  margin-top: 62px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.process-row {
  display: grid;
  grid-template-columns: 160px 1fr .85fr;
  gap: 42px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}
.process-row .step {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
}
.process-row h3 {
  margin: 0;
  font-size: clamp(28px, 3vw, 48px);
  line-height: 1.05;
  font-weight: 500;
  letter-spacing: -.045em;
}
.process-row p {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}
.quote {
  position: relative;
  padding: clamp(34px, 5vw, 72px);
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(235,78,39,.035), rgba(255,255,255,.012) 42%, rgba(255,255,255,.006)),
    var(--black);
  overflow: hidden;
}
.quote::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -135px;
  width: 360px;
  aspect-ratio: 384/362;
  background: url("../img/rspectra-mark-white.png") center/contain no-repeat;
  opacity: .035;
}
.quote p {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 1060px;
  font-size: clamp(28px, 4vw, 64px);
  line-height: 1.04;
  letter-spacing: -.05em;
  text-wrap: balance;
}

.page-hero {
  padding-top: 170px;
  padding-bottom: 100px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(780px 500px at 78% 8%, rgba(235,78,39,.04), transparent 62%),
    var(--black);
}
.page-title {
  margin: 0;
  max-width: 1120px;
  font-size: clamp(54px, 7.7vw, 128px);
  line-height: .92;
  letter-spacing: -.07em;
  font-weight: 500;
  text-wrap: balance;
}
.page-copy {
  margin-top: 28px;
  max-width: 790px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.9;
}
.split-list {
  display: grid;
  border-top: 1px solid var(--line);
}
.split-row {
  display: grid;
  grid-template-columns: .55fr 1.45fr;
  gap: 48px;
  padding: 36px 0;
  border-bottom: 1px solid var(--line);
}
.split-row h2,
.split-row h3 {
  margin: 0;
  font-weight: 500;
  letter-spacing: -.03em;
}
.split-row p,
.split-row li {
  margin: 0;
  color: var(--muted);
  line-height: 1.85;
}
.split-row ul {
  margin: 0;
  padding-left: 18px;
}
.contact-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.contact-box {
  background: var(--black);
  padding: 38px;
  min-height: 230px;
}
.contact-box p { color: var(--muted); line-height: 1.8; }
.contact-box a { color: var(--white); border-bottom: 1px solid rgba(235,78,39,.6); }

.footer {
  position: relative;
  overflow: hidden;
  padding: 72px 0 36px;
}
.footer::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -160px;
  width: 520px;
  aspect-ratio: 384/362;
  background: url("../img/rspectra-mark-white.png") center/contain no-repeat;
  opacity: .035;
  pointer-events: none;
}
.footer-top {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--line);
}
.footer img { height: 34px; width: auto; opacity: .92; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
}
.footer-links a {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-top: 28px;
  color: rgba(245,245,243,.38);
  font-size: 12px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

@keyframes patternBreath {
  from { opacity: .028; transform: translate3d(0,0,0); }
  to { opacity: .045; transform: translate3d(10px, -6px, 0); }
}

@media (max-width: 980px) {
  :root { --container: min(100vw - 32px, 1560px); }
  .site-header { height: 74px; }
  .nav {
    position: fixed;
    inset: 74px 16px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(15,15,16,.96);
    border: 1px solid var(--line);
    backdrop-filter: blur(18px);
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 18px; border-bottom: 1px solid var(--line); }
  .menu-btn { display: grid; }
  .hero-content { padding-top: 118px; }
  .hero-grid { grid-template-columns: 1fr; }
  .disciplines { max-width: 440px; }
  .hero-monolith {
    width: min(460px, 78vw);
    right: -26vw;
    top: 110px;
    opacity: .75;
  }
  .hero-pattern {
    width: 88vw;
    left: -28px;
    background-size: 88px auto;
  }
  .section-grid, .split-row {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cards, .metrics { grid-template-columns: 1fr; }
  .contact-panel { grid-template-columns: 1fr; }
  .footer-top, .footer-bottom, .hero-bottom { flex-direction: column; align-items: start; }
  .process-row { grid-template-columns: 1fr; gap: 16px; }
}

@media (max-width: 620px) {
  .brand img { height: 24px; max-width: 190px; }
  .hero-title { font-size: clamp(42px, 12vw, 66px); }
  .hero-copy { line-height: 1.78; }
  .work-item { grid-template-columns: 1fr; }
  .section { padding: 82px 0; }
  .page-hero { padding-top: 130px; padding-bottom: 72px; }
}