:root {
  --ink: #12130f;
  --ground: #1a1b16;
  --ground-2: #20211b;
  --paper: #f2efe6;
  --paper-2: #e8e3d5;
  --amber: #ffb400;
  --amber-dark: #765600;
  --muted: #aaa593;
  --line: #3a3b33;
  --paper-line: #c9c2ae;
  --cut: #a72c21;
  --fill: #2e6da4;
  --mono: "IBM Plex Mono", monospace;
  --display: "Archivo Black", sans-serif;
  --body: "Archivo", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--ground);
  color: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(255, 180, 0, 0.045) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(255, 180, 0, 0.045) 39px 40px);
  content: "";
  pointer-events: none;
}

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

a {
  color: var(--amber);
  text-underline-offset: 0.18em;
}

section.paper a:not(.button) {
  color: var(--amber-dark);
  font-weight: 600;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 10px 14px;
  transform: translateY(-160%);
  background: var(--amber);
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 700;
}

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

.wrap {
  width: min(100%, 1128px);
  margin: 0 auto;
  padding-inline: 24px;
}

.narrow {
  max-width: 760px;
}

.projnav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(18, 19, 15, 0.97);
  backdrop-filter: blur(10px);
}

.projnav .wrap {
  position: relative;
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.projnav .brand {
  color: var(--paper);
  font-family: var(--display);
  font-size: 15px;
  letter-spacing: 0.08em;
  line-height: 1.05;
  text-decoration: none;
}

.projnav .links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.projnav .links a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 0 10px;
  border: 1px solid var(--line);
}

.projnav .links a:hover {
  color: var(--paper);
  border-color: var(--amber);
}

.projnav .links a.on {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
  font-weight: 700;
}

.projnav .links .nav-cta {
  min-height: 40px;
  padding: 0 13px;
  border: 1px solid var(--amber);
  color: var(--amber);
}

.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
}

header,
.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 56px;
}

.site-home .hero {
  padding: 88px 0 64px;
}

.kicker,
.eyebrow {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--display);
  line-height: 1.06;
  text-transform: uppercase;
}

h1 {
  max-width: 15ch;
  margin: 18px 0 22px;
  font-size: clamp(42px, 6vw, 72px);
}

.site-home h1 {
  max-width: 16ch;
  font-size: clamp(44px, 6.8vw, 82px);
}

h1 .under,
h1 span,
.accent {
  color: var(--amber);
}

h2 {
  margin: 14px 0 18px;
  font-size: clamp(28px, 3.5vw, 40px);
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
}

.lede {
  max-width: 58ch;
  color: #d3cebf;
  font-size: clamp(18px, 2vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--amber);
  background: var(--amber);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.button.secondary {
  background: transparent;
  color: var(--amber);
}

.button:hover {
  transform: translateY(-1px);
}

.status-note,
.scope-note {
  max-width: 78ch;
  margin-top: 24px;
  padding: 14px 16px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 180, 0, 0.07);
  color: #cfcaba;
  font-family: var(--mono);
  font-size: 13px;
}

.status-note strong,
.scope-note strong {
  color: var(--paper);
}

section.paper .scope-note {
  border-left-color: var(--amber-dark);
  background: #e3dcc9;
  color: #4f4a3c;
}

section.paper .scope-note strong {
  color: var(--ink);
}

.whofor {
  max-width: 62ch;
  margin-top: 20px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 14px;
}

.bignum {
  margin: 42px 0 8px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: clamp(44px, 8vw, 96px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.bignum small {
  display: block;
  max-width: 60ch;
  margin-top: 6px;
  color: #cfcaba;
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 400;
  letter-spacing: 0.05em;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(205px, 1fr));
  margin-top: 52px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.stat {
  padding: 20px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat .v {
  color: var(--paper);
  font-family: var(--mono);
  font-size: 25px;
  font-weight: 700;
}

.stat .l {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.stat.hot .v {
  color: var(--amber);
}

section {
  padding: 72px 0;
}

section.paper {
  background: var(--paper);
  color: var(--ink);
}

section.paper .kicker,
section.paper .eyebrow {
  color: var(--amber-dark);
}

.section-intro {
  max-width: 65ch;
  color: #cfcaba;
  font-size: 17px;
}

section.paper .section-intro {
  color: #554f40;
}

.prose {
  max-width: 66ch;
  font-size: 17px;
}

.prose + .prose {
  margin-top: 14px;
}

.grid-3,
.service-grid,
.process-grid,
.boundary-grid,
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 34px;
}

.process-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.panel,
.service,
.process-step,
.boundary {
  padding: 24px;
  border: 1px solid var(--line);
  background: var(--ground-2);
}

section.paper .panel,
section.paper .service,
section.paper .process-step,
section.paper .boundary {
  border-color: var(--paper-line);
  background: #ebe7dc;
}

.panel p,
.service p,
.process-step p,
.boundary p {
  color: var(--muted);
  font-size: 15px;
}

section.paper .panel p,
section.paper .service p,
section.paper .process-step p,
section.paper .boundary p {
  color: #625c4b;
}

.service .num,
.process-step .num {
  margin-bottom: 16px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.15em;
}

section.paper .service .num,
section.paper .process-step .num {
  color: var(--amber-dark);
}

.case-grid,
.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
  margin-top: 38px;
}

.card {
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ground-2);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--amber);
}

.card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-bottom: 1px solid var(--line);
  object-fit: cover;
}

.card .body {
  padding: 20px 20px 24px;
}

.card .num {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.card h3 {
  margin: 9px 0;
  font-size: 23px;
}

.card p {
  color: var(--muted);
  font-size: 15px;
}

.card .statline {
  margin-top: 14px;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
}

.card .go {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.card:hover .go {
  text-decoration: underline;
}

figure {
  margin-top: 34px;
}

figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

section.paper figure img {
  border-color: var(--paper-line);
}

figure img[data-lightbox] {
  cursor: zoom-in;
}

figcaption {
  padding: 10px 2px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}

section.paper figcaption {
  color: #6d6753;
}

.locus {
  display: block;
  width: min(100%, 300px);
  margin-top: 26px;
  border: 1px solid var(--line);
}

.moat {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 36px;
}

.moat figure {
  margin: 0;
}

.swipe {
  position: relative;
  overflow: hidden;
  aspect-ratio: 5 / 4;
  margin-top: 38px;
  border: 1px solid var(--line);
  cursor: ew-resize;
  touch-action: pan-y;
  user-select: none;
}

.swipe .stage {
  position: absolute;
  inset: 0;
}

.swipe .stage > img,
.swipe .top img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--focus, 50% 50%);
  pointer-events: none;
}

.swipe .top {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.swipe .bar {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--amber);
  pointer-events: none;
}

.swipe .bar::after {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 9px 11px;
  transform: translate(-50%, -50%);
  border-radius: 24px;
  background: var(--amber);
  color: var(--ink);
  content: "◂ ▸";
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.tag {
  position: absolute;
  top: 12px;
  padding: 5px 10px;
  background: rgba(18, 19, 15, 0.86);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  pointer-events: none;
}

.tag.left { left: 12px; }
.tag.right {
  right: 12px;
  background: rgba(255, 180, 0, 0.94);
  color: var(--ink);
}

.fsbtn {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 5;
  min-width: 46px;
  min-height: 46px;
  border: 1px solid #5b5c51;
  background: rgba(18, 19, 15, 0.9);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 18px;
  cursor: pointer;
}

.swipe.fs {
  position: fixed;
  inset: 0;
  z-index: 98;
  height: 100dvh;
  margin: 0;
  border: 0;
  background: #000;
}

.site-picks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.site-picks button {
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
}

.site-picks button.on,
.rank-card.on {
  border-color: var(--amber);
  background: rgba(255, 180, 0, 0.12);
}

.rank-card {
  cursor: pointer;
}

.rank-card img {
  display: block;
  width: 100%;
  height: 88px;
  margin-bottom: 12px;
  border: 1px solid var(--paper-line);
  object-fit: cover;
}

.map-swipe {
  position: relative;
  overflow: hidden;
  aspect-ratio: 5 / 4;
  margin-top: 22px;
  border: 1px solid var(--line);
  background: #111;
}

.map-swipe.fs {
  position: fixed;
  inset: 0;
  z-index: 98;
  height: 100dvh;
  margin: 0;
  border: 0;
  aspect-ratio: auto;
  background: #000;
}

.map-swipe .p04-map,
.map-swipe .map-fallback {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.map-swipe .map-fallback {
  object-fit: cover;
}

.map-swipe .p04-map {
  z-index: 1;
}

.map-swipe .tag,
.map-swipe .fsbtn {
  z-index: 7;
}

.map-swipe .bar {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 6;
  width: 2px;
  background: var(--amber);
  cursor: ew-resize;
  touch-action: none;
}

.map-swipe .bar::before {
  position: absolute;
  inset: 0 -16px;
  content: "";
}

.map-swipe .bar::after {
  position: absolute;
  top: 50%;
  left: 50%;
  padding: 9px 11px;
  transform: translate(-50%, -50%);
  border-radius: 24px;
  background: var(--amber);
  color: var(--ink);
  content: "◂ ▸";
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  pointer-events: none;
}

.map-swipe .leaflet-container {
  font-family: var(--body);
  background: #111;
}

.map-swipe .leaflet-top {
  top: 46px;
}

.map-swipe .leaflet-control-attribution {
  max-width: min(100%, 52ch);
  background: rgba(18, 19, 15, 0.82);
  color: #cfcaba;
  font-family: var(--mono);
  font-size: 10px;
}

.map-swipe .leaflet-control-attribution a {
  color: var(--amber);
}

.map-status {
  margin-top: 12px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}

.fail-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  margin-top: 16px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}

.fail-jump select {
  min-height: 40px;
  min-width: min(100%, 280px);
  padding: 0 10px;
  border: 1px solid var(--line);
  background: var(--ground-2);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
}

.fail-card {
  cursor: pointer;
}

.fail-card img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
}

.fail-card h3 {
  margin-top: 12px;
  font-size: 18px;
}

.fail-card p {
  margin-top: 8px;
  color: var(--muted);
}

tr[data-p04-id] {
  cursor: pointer;
}

.tablewrap {
  max-width: 100%;
  margin-top: 30px;
  overflow-x: auto;
  border: 1px solid transparent;
}

.tablewrap:focus-visible {
  border-color: var(--amber);
}

table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: 15px;
}

caption {
  padding: 0 0 12px;
  font-weight: 700;
  text-align: left;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--paper-line);
  text-align: right;
}

th:first-child,
td:first-child {
  text-align: left;
}

thead th {
  color: #6d6753;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

td {
  font-family: var(--mono);
}

tr.ours td {
  background: #fff8e0;
  font-weight: 700;
}

tr.delta td {
  color: var(--cut);
  font-weight: 700;
}

.dark-table th,
.dark-table td {
  border-color: var(--line);
}

.dark-table thead th {
  color: var(--muted);
}

.table-foot {
  max-width: 82ch;
  margin-top: 14px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
}

.ranking-cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.rank-card {
  padding: 18px;
  border: 1px solid var(--paper-line);
  background: #ebe7dc;
}

.rank-card:first-child {
  background: #fff8e0;
}

.rank-card .rank {
  color: var(--amber-dark);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}

.rank-card h3 {
  margin: 10px 0 6px;
  font-size: 17px;
}

.rank-card p {
  color: #625c4b;
  font-family: var(--mono);
  font-size: 12px;
}

.rank-card strong,
.rank-card span {
  display: block;
}

.rank-card strong {
  margin-top: 14px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 18px;
}

.rank-card span {
  margin-top: 5px;
  color: #625c4b;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
}

.full-ranking {
  margin-top: 24px;
}

.full-ranking > summary {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  padding: 0 16px;
  border: 1px solid #8d846d;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

ol.method {
  max-width: 68ch;
  margin: 26px 0 0 20px;
  font-size: 16px;
}

ol.method li {
  margin-bottom: 14px;
  padding-left: 6px;
}

ol.method b {
  font-family: var(--mono);
}

.note {
  max-width: 72ch;
  margin-top: 28px;
  padding: 10px 14px;
  border-left: 3px solid var(--amber);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}

section.paper .note {
  color: #6d6753;
}

.citation-list {
  display: grid;
  gap: 18px;
  max-width: 80ch;
  margin-top: 28px;
}

.citation-list li {
  margin-left: 20px;
  padding-left: 4px;
}

footer {
  padding: 64px 0 84px;
  border-top: 1px solid var(--line);
}

footer .cta {
  max-width: 24ch;
  font-family: var(--display);
  font-size: clamp(25px, 3.4vw, 38px);
  line-height: 1.12;
  text-transform: uppercase;
}

footer .cta span {
  color: var(--amber);
}

footer .contact,
.footer-meta {
  margin-top: 24px;
  color: #cfcaba;
  font-family: var(--mono);
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 13px;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  padding: 64px 20px 24px;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 8, 0.96);
}

.lightbox.open {
  display: flex;
}

.lightbox-inner {
  display: flex;
  width: 100%;
  height: 100%;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.lightbox img {
  max-width: 96vw;
  max-height: 78vh;
  border: 1px solid var(--line);
  touch-action: none;
}

.lightbox .cap {
  max-width: 88ch;
  color: #cfcaba;
  font-family: var(--mono);
  font-size: 13px;
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: 12px;
  right: 12px;
  min-width: 48px;
  min-height: 48px;
  border: 1px solid var(--line);
  background: var(--ground);
  color: var(--paper);
  font-size: 20px;
  cursor: pointer;
}

@media (max-width: 900px) {
  .grid-3,
  .service-grid,
  .process-grid,
  .boundary-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .ranking-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .wrap {
    padding-inline: 20px;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .projnav .links {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    padding: 10px 20px 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    border-bottom: 1px solid var(--line);
    background: rgba(18, 19, 15, 0.99);
  }

  .projnav .links.open {
    display: flex;
  }

  .projnav .links a {
    min-height: 46px;
    border: none;
    border-bottom: 1px solid rgba(58, 59, 51, 0.6);
  }

  .projnav .links .nav-cta {
    justify-content: center;
    margin-top: 8px;
    border: 1px solid var(--amber);
  }

  header,
  .hero,
  .site-home .hero {
    padding: 52px 0 44px;
  }

  h1,
  .site-home h1 {
    max-width: 100%;
    font-size: clamp(36px, 10.5vw, 50px);
  }

  h2 {
    font-size: clamp(27px, 8vw, 35px);
  }

  .lede {
    font-size: 17px;
  }

  section {
    padding: 52px 0;
  }

  .case-grid,
  .cards {
    grid-template-columns: 1fr;
  }

  .card h3 {
    font-size: 21px;
  }

  .bignum {
    font-size: clamp(42px, 15vw, 64px);
  }

  .swipe,
  .map-swipe {
    height: min(62vh, 520px);
    aspect-ratio: auto;
  }

  .map-swipe.fs,
  .swipe.fs {
    height: 100dvh;
  }

  .tag {
    max-width: 45%;
    font-size: 10px;
    letter-spacing: 0.08em;
  }

  .tablewrap::before {
    display: block;
    position: sticky;
    left: 0;
    width: max-content;
    margin: 0 0 10px;
    color: #6d6753;
    content: attr(data-scroll-hint);
    font-family: var(--mono);
    font-size: 11px;
  }

  .ranking-cards {
    grid-template-columns: 1fr;
  }

  .locus {
    width: min(100%, 210px);
  }

  footer {
    padding: 52px 0 64px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}