:root {
  --ink: #0a0b0d;
  --ink-soft: #111317;
  --paper: #e9e4da;
  --paper-dim: #b9b2a6;
  --copper: #c66b3d;
  --copper-light: #e49464;
  --line: rgba(233, 228, 218, 0.16);
  --max: 1240px;
  --pad: clamp(1.25rem, 4vw, 4rem);
  --serif: Georgia, "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  color: var(--paper);
  background:
    radial-gradient(circle at 85% 30%, rgba(198, 107, 61, 0.06), transparent 28rem),
    var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
}

::selection {
  color: var(--ink);
  background: var(--copper-light);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  color: var(--ink);
  background: var(--paper);
  transform: translateY(-200%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 var(--pad);
  border-bottom: 1px solid transparent;
  transition: background 260ms ease, border-color 260ms ease, min-height 260ms ease;
}

.site-header.is-scrolled {
  min-height: 64px;
  border-color: var(--line);
  background: rgba(10, 11, 13, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--paper);
  text-decoration: none;
}

.brand-mark {
  padding-right: 0.75rem;
  border-right: 1px solid rgba(233, 228, 218, 0.45);
  font-family: var(--serif);
  font-size: 1.45rem;
  line-height: 1;
  letter-spacing: -0.06em;
}

.brand-copy {
  color: var(--paper-dim);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 3vw, 2.75rem);
}

.primary-nav a {
  position: relative;
  color: rgba(233, 228, 218, 0.82);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-decoration: none;
  text-transform: uppercase;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: -0.55rem;
  left: 0;
  height: 1px;
  content: "";
  background: var(--copper-light);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease;
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: end;
  isolation: isolate;
  overflow: hidden;
}

.hero-image,
.hero-shade,
.hero-grid {
  position: absolute;
  z-index: -3;
  inset: 0;
}

.hero-image {
  background-image: url("/hero-museum.png");
  background-position: center 56%;
  background-size: cover;
  transform: scale(1.04);
  animation: settle 1800ms cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}

.hero-shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(5, 6, 7, 0.96) 0%, rgba(5, 6, 7, 0.77) 35%, rgba(5, 6, 7, 0.22) 69%, rgba(5, 6, 7, 0.62) 100%),
    linear-gradient(0deg, rgba(5, 6, 7, 0.85), transparent 40%);
}

.hero-grid {
  z-index: -1;
  opacity: 0.11;
  background-image:
    linear-gradient(rgba(255,255,255,0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.16) 1px, transparent 1px);
  background-size: 5.5rem 5.5rem;
  mask-image: linear-gradient(90deg, #000, transparent 78%);
}

.hero-content {
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: 10rem var(--pad) clamp(7rem, 13vh, 9rem);
}

.eyebrow {
  margin: 0 0 1.2rem;
  color: var(--copper-light);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 850px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(4rem, 9.5vw, 9.2rem);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.82;
}

.hero h1 em {
  color: transparent;
  font-weight: 400;
  -webkit-text-stroke: 1px rgba(233, 228, 218, 0.68);
}

.hero-intro {
  max-width: 650px;
  margin: 2rem 0 0;
  color: rgba(233, 228, 218, 0.78);
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 2.25rem;
}

.hero-actions p {
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 50px;
  padding: 0.75rem 1.25rem;
  color: var(--ink);
  background: var(--paper);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 200ms ease, background 200ms ease, transform 200ms ease;
}

.button:hover,
.button:focus-visible {
  color: var(--ink);
  background: var(--copper-light);
  transform: translateY(-2px);
}

.button span {
  font-size: 1rem;
}

.image-note {
  position: absolute;
  right: var(--pad);
  bottom: 2rem;
  max-width: 300px;
  margin: 0;
  color: rgba(233, 228, 218, 0.55);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  text-align: right;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  right: var(--pad);
  top: 46%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: rgba(233, 228, 218, 0.62);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  transform: rotate(90deg) translateX(50%);
  transform-origin: right center;
}

.scroll-cue span {
  width: 54px;
  height: 1px;
  overflow: hidden;
  background: rgba(233, 228, 218, 0.3);
}

.scroll-cue span::after {
  display: block;
  width: 100%;
  height: 100%;
  content: "";
  background: var(--copper-light);
  animation: scroll-line 2s ease-in-out infinite;
}

.section {
  position: relative;
  width: min(var(--max), 100%);
  margin: 0 auto;
  padding: clamp(6rem, 11vw, 10rem) var(--pad);
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-index {
  position: absolute;
  top: clamp(6rem, 11vw, 10rem);
  right: var(--pad);
  color: rgba(233, 228, 218, 0.25);
  font-family: var(--serif);
  font-size: 1rem;
}

.section-index::before {
  display: inline-block;
  width: 2.5rem;
  height: 1px;
  margin-right: 0.75rem;
  vertical-align: middle;
  content: "";
  background: currentColor;
}

.section-heading {
  max-width: 860px;
}

.section h2,
.closing h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.7rem, 6vw, 5.6rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.section-deck {
  max-width: 690px;
  margin: 2rem 0 0;
  color: var(--paper-dim);
  font-family: var(--serif);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.6;
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 8rem);
}

.intro-copy {
  padding-top: 4rem;
}

.intro-copy > p {
  color: var(--paper-dim);
}

.lead {
  color: var(--paper) !important;
  font-family: var(--serif);
  font-size: clamp(1.28rem, 2.2vw, 1.7rem);
  line-height: 1.5;
}

.context-card {
  margin-top: 3rem;
  padding: 1.75rem;
  border: 1px solid rgba(198, 107, 61, 0.5);
  background: linear-gradient(135deg, rgba(198, 107, 61, 0.09), rgba(198, 107, 61, 0.02));
}

.context-card strong {
  display: block;
  margin: 0.4rem 0 0.5rem;
  font-family: var(--serif);
  font-size: 1.45rem;
  font-weight: 400;
}

.context-card p {
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.92rem;
}

.context-label {
  color: var(--copper-light);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.timeline-section {
  padding-bottom: clamp(7rem, 14vw, 13rem);
}

.timeline-heading {
  margin-bottom: clamp(4rem, 9vw, 8rem);
}

.timeline {
  position: relative;
  display: grid;
  gap: 0;
  max-width: 940px;
  margin-left: auto;
}

.timeline-track {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7.9rem;
  width: 1px;
  background: var(--line);
}

.timeline-track span {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 100%;
  background: var(--copper);
  transform: scaleY(0);
  transform-origin: top;
}

.timeline-item {
  position: relative;
  display: grid;
  grid-template-columns: 8rem 1fr;
  min-height: 210px;
  border-top: 1px solid var(--line);
}

.timeline-item:last-child {
  border-bottom: 1px solid var(--line);
}

.timeline-item::before {
  position: absolute;
  z-index: 2;
  top: 2rem;
  left: 7.55rem;
  width: 0.7rem;
  height: 0.7rem;
  border: 2px solid var(--ink);
  border-radius: 50%;
  content: "";
  background: var(--copper-light);
  box-shadow: 0 0 0 1px var(--copper-light);
}

.timeline-item time {
  padding-top: 1.55rem;
  color: var(--copper-light);
  font-family: var(--serif);
  font-size: 1.75rem;
}

.timeline-item > div {
  padding: 1.6rem 1rem 3rem 3.2rem;
}

.timeline-item h3 {
  margin: 0 0 0.6rem;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 400;
}

.timeline-item p {
  max-width: 630px;
  margin: 0;
  color: var(--paper-dim);
}

.design-section {
  width: 100%;
  max-width: none;
  padding-right: max(var(--pad), calc((100vw - var(--max)) / 2 + var(--pad)));
  padding-left: max(var(--pad), calc((100vw - var(--max)) / 2 + var(--pad)));
  background: #101216;
}

.design-section .section-index {
  right: max(var(--pad), calc((100vw - var(--max)) / 2 + var(--pad)));
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(4rem, 8vw, 7rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.principle-card {
  position: relative;
  min-height: 360px;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--ink-soft);
  overflow: hidden;
  transition: background 260ms ease;
}

.principle-card::after {
  position: absolute;
  right: -30%;
  bottom: -70%;
  width: 16rem;
  height: 16rem;
  border: 1px solid rgba(198, 107, 61, 0.22);
  border-radius: 50%;
  content: "";
  transition: transform 500ms ease;
}

.principle-card:hover {
  background: #15171b;
}

.principle-card:hover::after {
  transform: scale(1.35);
}

.card-number {
  color: var(--copper-light);
  font-family: var(--serif);
  font-size: 1.2rem;
}

.principle-card h3 {
  max-width: 240px;
  margin: 6rem 0 1rem;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.08;
}

.principle-card p {
  color: var(--paper-dim);
  font-size: 0.93rem;
}

.name-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: clamp(3rem, 9vw, 9rem);
}

.name-graphic {
  position: relative;
  display: grid;
  width: min(31vw, 390px);
  aspect-ratio: 1;
  place-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  text-align: center;
}

.name-graphic::before,
.name-graphic::after {
  position: absolute;
  border-radius: 50%;
  content: "";
}

.name-graphic::before {
  inset: 8%;
  border: 1px dashed rgba(233, 228, 218, 0.18);
  animation: rotate-slow 28s linear infinite;
}

.name-graphic::after {
  inset: 30%;
  background: radial-gradient(circle, rgba(198, 107, 61, 0.2), transparent 68%);
}

.name-ring {
  position: absolute;
  border: 1px solid rgba(198, 107, 61, 0.32);
  border-radius: 50%;
}

.ring-one {
  inset: -5%;
  border-right-color: transparent;
  animation: rotate-slow 19s linear infinite reverse;
}

.ring-two {
  inset: 20%;
  border-bottom-color: transparent;
  animation: rotate-slow 12s linear infinite;
}

.name-graphic span {
  position: relative;
  z-index: 1;
  font-family: var(--serif);
  font-size: clamp(4rem, 9vw, 8rem);
  letter-spacing: -0.08em;
  line-height: 0.8;
}

.name-graphic small {
  position: relative;
  z-index: 1;
  margin-top: 1rem;
  color: var(--copper-light);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.name-copy .lead {
  margin: 2rem 0 2.5rem;
}

.model-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.model-list div {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.model-list dt {
  color: var(--copper-light);
  font-family: var(--serif);
  font-size: 1.25rem;
}

.model-list dd {
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.9rem;
}

.legacy-section {
  width: 100%;
  max-width: none;
  padding-right: max(var(--pad), calc((100vw - var(--max)) / 2 + var(--pad)));
  padding-left: max(var(--pad), calc((100vw - var(--max)) / 2 + var(--pad)));
  color: var(--ink);
  background: var(--paper);
}

.legacy-section .section-index {
  right: max(var(--pad), calc((100vw - var(--max)) / 2 + var(--pad)));
  color: rgba(10, 11, 13, 0.35);
}

.legacy-section .eyebrow {
  color: #9e4726;
}

.legacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(3rem, 8vw, 8rem);
  margin-top: clamp(4rem, 9vw, 8rem);
}

.legacy-quote {
  position: relative;
  padding-top: 3rem;
  border-top: 3px solid var(--copper);
}

.legacy-quote p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.7rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
}

.legacy-copy {
  padding-top: 3rem;
  border-top: 1px solid rgba(10, 11, 13, 0.24);
}

.legacy-copy p {
  margin: 0 0 1.2rem;
  color: #3a3a38;
}

.source-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: clamp(4rem, 8vw, 7rem);
}

.source-card {
  position: relative;
  display: flex;
  min-height: 250px;
  flex-direction: column;
  padding: 1.75rem;
  border: 1px solid var(--line);
  text-decoration: none;
  transition: border-color 220ms ease, transform 220ms ease, background 220ms ease;
}

.source-card:hover,
.source-card:focus-visible {
  border-color: var(--copper);
  background: rgba(198, 107, 61, 0.06);
  transform: translateY(-4px);
}

.source-card span {
  color: var(--copper-light);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.source-card strong {
  margin-top: auto;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 400;
}

.source-card small {
  margin-top: 0.35rem;
  color: var(--paper-dim);
}

.source-card i {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.2rem;
  font-style: normal;
}

.closing {
  display: grid;
  min-height: 72svh;
  padding: clamp(6rem, 12vw, 11rem) var(--pad);
  place-content: center;
  text-align: center;
  background:
    radial-gradient(circle at center, rgba(198, 107, 61, 0.14), transparent 33rem),
    #07080a;
}

.closing h2 {
  max-width: 980px;
}

.text-link {
  justify-self: center;
  margin-top: 3rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--copper-light);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
}

.text-link span {
  margin-left: 0.75rem;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 2fr auto;
  gap: 3rem;
  padding: 3rem var(--pad);
  border-top: 1px solid var(--line);
  color: rgba(233, 228, 218, 0.5);
  background: #07080a;
  font-size: 0.7rem;
}

.site-footer strong {
  color: var(--paper);
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 400;
}

.site-footer p {
  max-width: 690px;
  margin: 0.3rem 0 0;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

.hero .reveal:nth-child(2) { transition-delay: 100ms; }
.hero .reveal:nth-child(3) { transition-delay: 220ms; }
.hero .reveal:nth-child(4) { transition-delay: 340ms; }

@keyframes settle {
  to { transform: scale(1); }
}

@keyframes scroll-line {
  0% { transform: translateX(-100%); }
  55%, 100% { transform: translateX(100%); }
}

@keyframes rotate-slow {
  to { transform: rotate(360deg); }
}

@media (max-width: 900px) {
  .hero-shade {
    background:
      linear-gradient(90deg, rgba(5, 6, 7, 0.92), rgba(5, 6, 7, 0.28)),
      linear-gradient(0deg, rgba(5, 6, 7, 0.95), transparent 55%);
  }

  .intro,
  .name-section,
  .legacy-grid {
    grid-template-columns: 1fr;
  }

  .intro-copy {
    max-width: 700px;
    padding-top: 0;
  }

  .principles-grid,
  .source-list {
    grid-template-columns: 1fr;
  }

  .principle-card {
    min-height: 280px;
  }

  .principle-card h3 {
    margin-top: 3.5rem;
  }

  .name-graphic {
    width: min(76vw, 390px);
    margin: 0 auto 2rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 66px;
  }

  .brand-copy {
    display: none;
  }

  .menu-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    border: 0;
    color: var(--paper);
    background: transparent;
    font: inherit;
    font-size: 0.67rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }

  .menu-lines,
  .menu-lines::before {
    display: block;
    width: 21px;
    height: 1px;
    content: "";
    background: currentColor;
    transition: transform 200ms ease;
  }

  .menu-lines::before {
    transform: translateY(6px);
  }

  .menu-button[aria-expanded="true"] .menu-lines {
    transform: rotate(45deg) translateY(2px);
  }

  .menu-button[aria-expanded="true"] .menu-lines::before {
    transform: rotate(-90deg);
  }

  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    display: grid;
    align-content: center;
    gap: 1.6rem;
    padding: 6rem var(--pad);
    background: rgba(10, 11, 13, 0.98);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-1rem);
    transition: opacity 220ms ease, transform 220ms ease;
  }

  .primary-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .primary-nav a {
    font-family: var(--serif);
    font-size: clamp(2.3rem, 12vw, 4rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    text-transform: none;
  }

  .hero-image {
    background-position: 61% center;
  }

  .hero-content {
    padding-bottom: 8rem;
  }

  .hero h1 {
    font-size: clamp(3.5rem, 17vw, 6rem);
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 1.25rem;
  }

  .image-note {
    right: auto;
    bottom: 1.25rem;
    left: var(--pad);
    text-align: left;
  }

  .scroll-cue {
    display: none;
  }

  .section-index {
    display: none;
  }

  .timeline-track {
    left: 0.25rem;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    padding-left: 1.5rem;
  }

  .timeline-item::before {
    top: 2rem;
    left: -0.1rem;
  }

  .timeline-item time {
    padding: 1.5rem 0 0 1.5rem;
  }

  .timeline-item > div {
    padding: 0.4rem 0.5rem 2.5rem 1.5rem;
  }

  .model-list div {
    grid-template-columns: 4.5rem 1fr;
  }
}

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

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

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