:root {
  --navy: #082f3c;
  --navy-deep: #04232d;
  --blue: #0c5366;
  --sea: #66aebb;
  --foam: #d7eceb;
  --paper: #f2eee4;
  --paper-light: #faf8f2;
  --ink: #14292e;
  --muted: #637174;
  --copper: #b55d38;
  --line: rgba(20, 41, 46, 0.18);
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --serif: "Literata", Georgia, serif;
  --display: "GFS Didot", Georgia, serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 100;
  left: 1rem;
  top: -4rem;
  padding: 0.75rem 1rem;
  background: var(--paper-light);
  color: var(--ink);
  font-family: var(--sans);
}

.skip-link:focus { top: 1rem; }

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.35rem clamp(1.25rem, 4vw, 4.5rem);
  color: #eef6f5;
  font-family: var(--sans);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-decoration: none;
}

.wordmark i { font-family: var(--serif); font-weight: 400; }

.wordmark-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--display);
  font-size: 1.2rem;
  line-height: 1;
}

.site-header nav { display: flex; gap: clamp(1rem, 3vw, 2.6rem); }

.site-header nav a {
  position: relative;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.11em;
  text-decoration: none;
  text-transform: uppercase;
}

.site-header nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

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

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(840px, 94vh);
  overflow: hidden;
  display: grid;
  align-items: center;
  padding: 8rem clamp(1.25rem, 8vw, 9rem) 7rem;
  background:
    linear-gradient(105deg, rgba(4, 35, 45, 0.15), rgba(4, 35, 45, 0.72)),
    radial-gradient(circle at 82% 32%, rgba(102, 174, 187, 0.25), transparent 34%),
    var(--navy);
  color: #eff7f4;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.12;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.3) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, transparent 8%, #000 50%, #000 100%);
}

.hero-copy { position: relative; z-index: 2; max-width: 52rem; }

.kicker,
.section-number {
  margin: 0 0 1.25rem;
  color: var(--copper);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.hero .kicker { color: #93ccd2; }

.hero h1 {
  max-width: 8ch;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(5rem, 14vw, 10.5rem);
  font-weight: 400;
  letter-spacing: -0.05em;
  line-height: 0.72;
}

.hero h1 em {
  color: var(--foam);
  font-family: var(--serif);
  font-size: 0.63em;
  font-weight: 400;
  letter-spacing: -0.055em;
}

.hero-intro {
  max-width: 37rem;
  margin: 2.7rem 0 0 clamp(0rem, 10vw, 9rem);
  color: #cfe0df;
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0 0 clamp(0rem, 10vw, 9rem);
}

.button {
  display: inline-flex;
  min-height: 3.1rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  padding: 0.8rem 1.2rem;
  font-family: var(--sans);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.button-primary { background: var(--foam); color: var(--navy-deep); }
.button-primary:hover { background: #fff; }
.button-ghost { border-color: rgba(255, 255, 255, 0.32); background: transparent; color: #eff7f4; }
.button-ghost:hover { border-color: #eff7f4; }

.hero-coordinate {
  position: absolute;
  right: clamp(1.25rem, 4vw, 4.5rem);
  bottom: 4.5rem;
  display: flex;
  flex-direction: column;
  color: rgba(238, 247, 244, 0.58);
  font-family: var(--sans);
  font-size: 0.67rem;
  letter-spacing: 0.12em;
  line-height: 1.6;
}

.hero-chart { position: absolute; z-index: 0; inset: 0; pointer-events: none; }

.chart-ring {
  position: absolute;
  border: 1px solid rgba(190, 227, 229, 0.18);
  border-radius: 50%;
}

.ring-one { width: 44vw; height: 44vw; right: -7vw; top: 13%; }
.ring-two { width: 22vw; height: 22vw; right: 4vw; top: calc(13% + 11vw); }

.chart-line {
  position: absolute;
  right: -12%;
  width: 68%;
  height: 1px;
  background: rgba(190, 227, 229, 0.16);
  transform-origin: center;
}

.line-one { top: 42%; transform: rotate(21deg); }
.line-two { top: 45%; transform: rotate(-13deg); }

.hero-wave {
  position: absolute;
  z-index: 1;
  right: -10%;
  bottom: -14rem;
  width: 66%;
  height: 25rem;
  border: 1px solid rgba(215, 236, 235, 0.24);
  border-radius: 50% 50% 0 0;
  transform: rotate(-3deg);
  box-shadow: 0 -1.4rem 0 -1.3rem rgba(215, 236, 235, 0.12), 0 -2.8rem 0 -2.7rem rgba(215, 236, 235, 0.08);
}

.manifesto,
.about {
  display: grid;
  grid-template-columns: minmax(10rem, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(2rem, 8vw, 9rem);
  max-width: 87rem;
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 9rem) clamp(1.25rem, 5vw, 5rem);
}

.manifesto > div { max-width: 49rem; }
.manifesto p:not(.manifesto-lead) { max-width: 41rem; color: var(--muted); font-size: 1.08rem; }

.manifesto-lead {
  margin: 0 0 1rem;
  font-family: var(--display);
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  line-height: 1.05;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: 100%;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.metrics article {
  min-height: 12rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem clamp(1.25rem, 4vw, 4rem);
  border-right: 1px solid var(--line);
}

.metrics article:last-child { border-right: 0; }
.metrics strong { font-family: var(--display); font-size: clamp(2.6rem, 5vw, 4.2rem); font-weight: 400; line-height: 1; }
.metrics span { margin-top: 0.8rem; color: var(--muted); font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; }

.archive-section {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.25rem, 5vw, 5rem);
  background: var(--paper-light);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(18rem, 1.3fr) minmax(16rem, 0.7fr);
  align-items: end;
  gap: 3rem;
  max-width: 87rem;
  margin: 0 auto 3.2rem;
}

.section-heading h2,
.library h2,
.about h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3rem, 6vw, 5.8rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.95;
}

.section-heading > p {
  max-width: 28rem;
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.archive-shell { max-width: 87rem; margin: 0 auto; }

.search-panel {
  padding: clamp(1.2rem, 3vw, 2.2rem);
  border: 1px solid var(--line);
  background: #fff;
}

.search-panel > label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.search-field { position: relative; display: flex; align-items: center; }
.search-field svg { width: 1.6rem; height: 1.6rem; flex: 0 0 auto; fill: none; stroke: var(--ink); stroke-width: 1.4; }

.search-field input {
  position: relative;
  z-index: 1;
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  padding: 0.5rem 2.5rem 0.5rem 1rem;
  background: transparent;
  color: var(--ink);
  font-family: var(--display);
  font-size: clamp(1.6rem, 4vw, 3rem);
}

.search-field input:focus-visible { box-shadow: inset 0 -2px var(--sea); }

.search-hint {
  position: absolute;
  z-index: 0;
  left: 3.6rem;
  right: 2.5rem;
  overflow: hidden;
  color: #9ba3a1;
  font-family: var(--display);
  font-size: clamp(1.6rem, 4vw, 3rem);
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 120ms ease;
}

.search-field:focus-within .search-hint,
.search-field.has-query .search-hint { opacity: 0; }

.search-field button {
  position: absolute;
  right: 0;
  width: 2.2rem;
  height: 2.2rem;
  border: 0;
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.filter-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.25rem 0 2.2rem;
  border-bottom: 1px solid var(--line);
}

.filter-group { display: flex; flex-wrap: wrap; gap: 0.45rem; }

.filter-chip {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  background: transparent;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.72rem;
  cursor: pointer;
}

.filter-chip:hover,
.filter-chip.active { border-color: var(--navy); background: var(--navy); color: #fff; }

.selects { display: flex; gap: 0.8rem; }
.selects label { display: grid; gap: 0.3rem; color: var(--muted); font-family: var(--sans); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; }

.selects select {
  min-width: 9rem;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  padding: 0.35rem 1.8rem 0.35rem 0;
  background-color: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.76rem;
  text-transform: none;
}

.results-bar {
  display: flex;
  justify-content: space-between;
  padding: 1.15rem 0;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.results-bar p { margin: 0; }
.results-bar strong { color: var(--ink); font-size: 1rem; }

.document-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.document-card {
  position: relative;
  min-height: 17rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.35rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-light);
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease;
}

.document-card:hover,
.document-card:focus-visible { z-index: 1; outline: 0; background: var(--navy); color: #fff; }
.document-card:hover .document-meta,
.document-card:focus-visible .document-meta { color: #a9cbd0; }
.document-card:hover .document-badge,
.document-card:focus-visible .document-badge { border-color: rgba(255,255,255,0.35); color: #dbe9e9; }

.document-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }

.document-badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.55rem;
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.document-arrow { font-family: var(--sans); font-size: 1.2rem; }
.document-card h3 { margin: 2rem 0 1rem; font-family: var(--display); font-size: clamp(1.45rem, 2.4vw, 2rem); font-weight: 400; line-height: 1.08; }
.document-meta { margin: 0; color: var(--muted); font-family: var(--sans); font-size: 0.67rem; line-height: 1.5; }

.load-more {
  display: block;
  min-width: 15rem;
  margin: 2rem auto 0;
  border: 1px solid var(--ink);
  padding: 0.85rem 1.2rem;
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.load-more:hover { background: var(--ink); color: #fff; }

.empty-state { padding: 4rem 1rem; text-align: center; }
.empty-state p { font-family: var(--display); font-size: 1.8rem; }
.empty-state button { border: 0; border-bottom: 1px solid; background: transparent; color: var(--ink); cursor: pointer; }

.collections {
  padding: clamp(5rem, 10vw, 9rem) clamp(1.25rem, 5vw, 5rem);
  background: var(--navy);
  color: #eef6f5;
}

.section-heading.inverse > p { color: #a9c4c6; }
.collections .section-number { color: #8bc4ca; }
.collection-grid { display: grid; grid-template-columns: repeat(2, 1fr); max-width: 87rem; margin: 0 auto; border-top: 1px solid rgba(255,255,255,0.2); border-left: 1px solid rgba(255,255,255,0.2); }

.collection-card {
  min-height: 23rem;
  display: flex;
  flex-direction: column;
  padding: clamp(1.4rem, 3vw, 2.5rem);
  border-right: 1px solid rgba(255,255,255,0.2);
  border-bottom: 1px solid rgba(255,255,255,0.2);
}

.collection-card.featured { background: var(--foam); color: var(--navy-deep); }
.collection-index { margin: 0 0 auto; color: #8fb8bc; font-family: var(--sans); font-size: 0.64rem; letter-spacing: 0.14em; }
.featured .collection-index { color: var(--blue); }
.collection-card h3 { margin: 3rem 0 0.6rem; font-family: var(--display); font-size: clamp(2.2rem, 4vw, 4rem); font-weight: 400; line-height: 1; }
.collection-card p:not(.collection-index) { max-width: 31rem; margin: 0; color: #b8ced0; }
.collection-card.featured p:not(.collection-index) { color: var(--blue); }
.collection-card button,
.collection-card a { align-self: flex-start; margin-top: 1.5rem; border: 0; border-bottom: 1px solid currentColor; padding: 0.3rem 0; background: transparent; color: inherit; font-family: var(--sans); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em; text-decoration: none; text-transform: uppercase; cursor: pointer; }

.library { max-width: 87rem; margin: 0 auto; padding: clamp(5rem, 10vw, 9rem) clamp(1.25rem, 5vw, 5rem); }
.library-layout { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(3rem, 8vw, 9rem); }
.library-layout > div > p { max-width: 33rem; margin-top: 1.6rem; color: var(--muted); }
.reference-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.reference-list li { display: grid; grid-template-columns: 4rem minmax(0, 1fr) auto; align-items: center; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.reference-year { color: var(--copper); font-family: var(--sans); font-size: 0.7rem; font-weight: 600; }
.reference-list strong,
.reference-list small { display: block; }
.reference-list strong { font-family: var(--display); font-size: 1.3rem; font-weight: 400; line-height: 1.2; }
.reference-list small { margin-top: 0.25rem; color: var(--muted); font-family: var(--sans); font-size: 0.68rem; }
.reference-list a { font-family: var(--sans); font-size: 0.66rem; font-weight: 600; text-decoration: none; text-transform: uppercase; }

.about { align-items: center; max-width: 100%; background: #ded8c9; }
.about-stamp { justify-self: center; width: min(23rem, 80vw); aspect-ratio: 1; display: grid; place-items: center; border: 1px solid rgba(20,41,46,0.45); border-radius: 50%; text-align: center; }
.about-stamp span { grid-area: 1 / 1; font-family: var(--display); font-size: clamp(8rem, 18vw, 14rem); line-height: 1; }
.about-stamp small { grid-area: 1 / 1; align-self: end; margin-bottom: 2.5rem; font-family: var(--sans); font-size: 0.58rem; letter-spacing: 0.15em; line-height: 1.6; }
.about > div:last-child { max-width: 45rem; }
.about h2 { font-size: clamp(3rem, 6vw, 5.2rem); }
.about > div:last-child > p:not(.section-number) { color: #4f5d5e; }

footer {
  display: grid;
  grid-template-columns: 1fr auto 1.6fr auto;
  align-items: center;
  gap: 2rem;
  padding: 2.4rem clamp(1.25rem, 4vw, 4.5rem);
  background: var(--navy-deep);
  color: #c2d5d5;
  font-family: var(--sans);
  font-size: 0.68rem;
}

footer p { margin: 0; }
footer > a:last-child { justify-self: end; text-decoration: none; }
.footer-mark { color: #eef6f5; }
.rights { color: #78999c; }

:focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }

@media (max-width: 900px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metrics article:nth-child(2) { border-right: 0; }
  .metrics article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .section-heading,
  .library-layout { grid-template-columns: 1fr; }
  .section-heading > p { max-width: 40rem; }
  .filter-row { align-items: stretch; flex-direction: column; }
  .selects { justify-content: flex-end; }
  .document-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about { grid-template-columns: 0.7fr 1.3fr; }
  footer { grid-template-columns: 1fr auto; }
  footer .rights { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 640px) {
  .site-header nav a:not(:first-child) { display: none; }
  .hero { min-height: 780px; padding-top: 8rem; align-items: center; }
  .hero h1 { font-size: clamp(4.6rem, 26vw, 7.4rem); }
  .hero-intro,
  .hero-actions { margin-left: 0; }
  .hero-coordinate { display: none; }
  .ring-one { width: 100vw; height: 100vw; right: -48vw; top: 35%; }
  .ring-two { width: 50vw; height: 50vw; right: -23vw; top: calc(35% + 25vw); }
  .manifesto,
  .about { grid-template-columns: 1fr; }
  .manifesto { gap: 1.5rem; }
  .metrics { grid-template-columns: 1fr; }
  .metrics article { min-height: 9rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .metrics article:last-child { border-bottom: 0; }
  .selects { justify-content: stretch; }
  .selects label { flex: 1; }
  .selects select { width: 100%; min-width: 0; }
  .document-grid { grid-template-columns: 1fr; }
  .document-card { min-height: 14rem; }
  .collection-grid { grid-template-columns: 1fr; }
  .collection-card { min-height: 19rem; }
  .reference-list li { grid-template-columns: 3.2rem minmax(0, 1fr); }
  .reference-list a { grid-column: 2; }
  .about { gap: 3rem; }
  footer { grid-template-columns: 1fr; }
  footer > a:last-child { justify-self: start; }
  footer .rights { grid-column: auto; grid-row: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}