:root {
  --paper: #ecebe6;
  --paper-deep: #e2e0d8;
  --ink: #2f1831;
  --ink-soft: #5e4d5f;
  --ochre: #b47a22;
  --petrol: #1f6670;
  --line: rgba(47, 24, 49, 0.24);
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  --page: min(1180px, calc(100% - 48px));
  --rhythm: clamp(72px, 9vw, 132px);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent 0 79%, rgba(47, 24, 49, 0.025) 79% 79.08%, transparent 79.08%),
    var(--paper);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration-color: var(--ochre);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

a:hover {
  color: var(--petrol);
}

a:focus-visible {
  outline: 2px solid var(--petrol);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 20;
  padding: 8px 12px;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
}

.skip-link:focus {
  transform: none;
}

.site-header {
  width: var(--page);
  margin: 0 auto;
  padding: 24px 0 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  border-bottom: 1px solid var(--ink);
}

.brand {
  font-family: var(--serif);
  font-size: 1.16rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
}

.hero {
  width: var(--page);
  margin: 0 auto;
  padding: clamp(54px, 8vw, 108px) 0 var(--rhythm);
  display: grid;
  grid-template-columns: 92px minmax(0, 4fr) minmax(310px, 5fr);
  column-gap: clamp(24px, 4vw, 64px);
  align-items: start;
}

.note-index {
  margin: 10px 0 0;
  color: var(--petrol);
  font-size: 0.69rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.hero-title {
  margin: 0;
  max-width: 690px;
  font-family: var(--serif);
  font-size: clamp(3.45rem, 7.5vw, 7.15rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.hero-title span {
  display: block;
  margin-top: 0.25em;
  color: var(--ochre);
  font-size: 0.32em;
  font-family: var(--sans);
  font-weight: 750;
  letter-spacing: 0.09em;
  line-height: 1.25;
  text-transform: uppercase;
}

.hero-media {
  padding-top: 8px;
}

.hero-intro {
  max-width: 39rem;
  margin: 0 0 28px;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.55;
}

.hero-figure {
  margin: 0 0 0 clamp(0px, 3vw, 46px);
}

.hero-figure img {
  width: 100%;
  aspect-ratio: 9 / 5;
  object-fit: cover;
  filter: saturate(0.72) contrast(0.97);
}

figcaption {
  margin-top: 11px;
  color: var(--ink-soft);
  font-size: 0.73rem;
  line-height: 1.45;
}

.waveform {
  display: flex;
  align-items: center;
  gap: 6px;
  width: var(--page);
  height: 34px;
  margin: 0 auto;
  overflow: hidden;
}

.waveform span {
  display: block;
  width: 1px;
  height: 8px;
  flex: 0 0 1px;
  background: var(--petrol);
}

.waveform span:nth-child(3n) { height: 22px; }
.waveform span:nth-child(4n) { height: 14px; }
.waveform span:nth-child(7n) { height: 30px; }

.section {
  width: var(--page);
  margin: 0 auto;
  padding: var(--rhythm) 0;
  border-top: 1px solid var(--line);
}

.section-kicker {
  margin: 0 0 22px;
  color: var(--ochre);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h2,
h3 {
  font-family: var(--serif);
  font-weight: 500;
}

h2 {
  max-width: 850px;
  margin: 0 0 34px;
  font-size: clamp(2.35rem, 5vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 0.98;
}

h3 {
  margin: 0 0 16px;
  font-size: clamp(1.45rem, 2.3vw, 2.1rem);
  line-height: 1.16;
}

p {
  margin: 0 0 1.25em;
}

.lead-copy {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(0, 2fr);
  gap: clamp(30px, 7vw, 100px);
}

.lead-copy .pullquote {
  margin: 0;
  padding-top: 8px;
  color: var(--petrol);
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.6vw, 2.3rem);
  line-height: 1.25;
}

.prose {
  max-width: 720px;
}

.prose p:last-child,
.module p:last-child,
.note p:last-child {
  margin-bottom: 0;
}

.modules-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
}

.module {
  padding: 30px 34px 6px 0;
}

.module + .module {
  padding-left: 34px;
  border-left: 1px solid var(--line);
}

.module-num {
  display: block;
  margin-bottom: 40px;
  color: var(--petrol);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.split-wide {
  display: grid;
  grid-template-columns: minmax(0, 1.9fr) minmax(250px, 0.9fr);
  gap: clamp(50px, 9vw, 130px);
  align-items: start;
}

.technical-note {
  margin-top: 74px;
  padding: 20px 0 0 22px;
  border-top: 4px solid var(--petrol);
  border-left: 1px solid var(--petrol);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.technical-note strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: 0.69rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(230px, 0.65fr);
  gap: clamp(42px, 7vw, 96px);
  align-items: center;
}

.detail-figure {
  width: min(100%, 360px);
  margin: 0;
  justify-self: end;
}

.detail-figure img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  filter: saturate(0.68) sepia(0.08);
}

.check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px 80px;
}

.checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: checks;
}

.checklist li {
  position: relative;
  min-height: 54px;
  padding: 13px 0 13px 48px;
  border-top: 1px solid var(--line);
  counter-increment: checks;
}

.checklist li::before {
  content: counter(checks, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 14px;
  color: var(--ochre);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.plain-list {
  margin: 1.25em 0 0;
  padding-left: 1.2em;
}

.plain-list li {
  margin-bottom: 0.6em;
  padding-left: 0.35em;
}

.closing-line {
  max-width: 900px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.7vw, 4.5rem);
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.page-hero {
  width: var(--page);
  margin: 0 auto;
  padding: clamp(70px, 10vw, 140px) 0 clamp(70px, 9vw, 120px);
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(240px, 0.8fr);
  gap: clamp(50px, 10vw, 150px);
  align-items: end;
}

.page-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(4rem, 9vw, 8.5rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.page-hero p {
  margin: 0 0 8px;
  color: var(--ink-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(250px, 0.75fr);
  gap: clamp(70px, 12vw, 170px);
}

.context-block {
  margin-top: 120px;
  padding-top: 20px;
  border-top: 4px solid var(--ochre);
}

.context-block dl {
  margin: 0;
}

.context-block div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.context-block dt {
  color: var(--ink-soft);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.context-block dd {
  margin: 4px 0 0;
}

.legal-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 720px);
  gap: clamp(44px, 9vw, 130px);
}

.legal-index {
  color: var(--petrol);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.legal-copy section + section {
  margin-top: 58px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.legal-copy h2 {
  margin-bottom: 22px;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  letter-spacing: -0.025em;
  line-height: 1.1;
}

.site-footer {
  margin-top: var(--rhythm);
  padding: 50px max(24px, calc((100% - 1180px) / 2)) 42px;
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(220px, 0.8fr) 180px;
  gap: 44px;
  align-items: start;
  color: var(--paper);
  background: var(--ink);
}

.footer-brand {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.8rem, 7vw, 6.4rem);
  letter-spacing: -0.045em;
  line-height: 0.9;
  text-transform: uppercase;
}

.footer-contact {
  padding-top: 9px;
}

.footer-contact p {
  margin: 0 0 7px;
  color: #c9bdc9;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-contact a {
  color: var(--paper);
  word-break: break-word;
}

.footer-nav {
  margin: 0;
  padding: 9px 0 0;
  list-style: none;
}

.footer-nav li + li {
  margin-top: 8px;
}

.footer-nav a {
  color: var(--paper);
  font-size: 0.82rem;
  text-decoration-color: var(--ochre);
}

.footer-meta {
  grid-column: 1 / -1;
  margin: 32px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(236, 235, 230, 0.2);
  color: #b9aeb9;
  font-size: 0.69rem;
}

@media (max-width: 900px) {
  :root {
    --page: min(100% - 36px, 760px);
  }

  .hero {
    grid-template-columns: 42px 1fr;
  }

  .hero-media {
    grid-column: 2;
    margin-top: 42px;
  }

  .modules-three {
    grid-template-columns: 1fr;
  }

  .module,
  .module + .module {
    padding: 28px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .module-num {
    margin-bottom: 18px;
  }

  .split-wide,
  .detail-layout,
  .page-hero,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .technical-note,
  .context-block {
    max-width: 520px;
    margin-top: 10px;
  }

  .detail-figure {
    width: min(70%, 360px);
    justify-self: start;
  }

  .page-hero {
    gap: 34px;
  }

  .legal-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  :root {
    --page: calc(100% - 28px);
    --rhythm: 68px;
  }

  body {
    font-size: 16px;
  }

  .site-header {
    grid-template-columns: 1fr;
    gap: 16px;
    padding-top: 18px;
  }

  .site-nav ul {
    gap: 7px 16px;
  }

  .site-nav a {
    font-size: 0.69rem;
  }

  .page-hero h1 {
    font-size: clamp(2.9rem, 12vw, 4.5rem);
    hyphens: auto;
    overflow-wrap: anywhere;
  }

  .hero {
    grid-template-columns: 24px minmax(0, 1fr);
    column-gap: 12px;
    padding-top: 48px;
  }

  .note-index {
    font-size: 0.59rem;
  }

  .hero-title {
    font-size: clamp(3rem, 16vw, 4.8rem);
  }

  .hero-media {
    grid-column: 1 / -1;
    margin-top: 34px;
  }

  .hero-figure {
    margin-left: 20px;
  }

  .lead-copy,
  .check-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .detail-figure {
    width: 82%;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-left: 18px;
    padding-right: 18px;
  }

  .footer-brand,
  .footer-meta {
    grid-column: auto;
  }
}

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