:root {
  --canvas: #060809;
  --surface: #0d1012;
  --surface-soft: #121619;
  --paper: #f0f0eb;
  --paper-deep: #deded7;
  --ink: #e5e9e8;
  --ink-dark: #151819;
  --muted: #8e9699;
  --line: rgba(229, 233, 232, 0.13);
  --line-dark: rgba(21, 24, 25, 0.17);
  --accent: #a58b63;
  --display: "Syne", "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  --body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "DM Mono", "SFMono-Regular", Consolas, monospace;
  --gutter: clamp(20px, 4vw, 72px);
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--canvas); }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}
button, a { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.shell,
.shell-wide {
  width: min(100%, 1760px);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.shell { max-width: 1500px; }

.topbar {
  position: fixed;
  top: 14px;
  left: 50%;
  z-index: 50;
  display: grid;
  width: min(calc(100% - 32px), 1160px);
  min-height: 52px;
  padding: 5px 6px 5px 14px;
  border: 1px solid rgba(229, 233, 232, 0.14);
  border-radius: 999px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: var(--ink);
  background: rgba(7, 9, 10, 0.88);
  box-shadow: 0 18px 58px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
  transform: translateX(-50%);
}

.brand {
  display: inline-flex;
  width: max-content;
  min-height: 42px;
  gap: 10px;
  align-items: center;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 600;
}

.brand img { width: 24px; height: 24px; }
.topnav { display: flex; gap: 26px; }
.topnav a {
  position: relative;
  padding: 12px 0;
  color: rgba(229, 233, 232, 0.55);
  font-size: 11px;
  transition: color 220ms ease-out;
}
.topnav a::after {
  position: absolute;
  right: 0;
  bottom: 7px;
  left: 0;
  height: 1px;
  background: var(--accent);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 320ms var(--ease);
}
.topnav a:hover,
.topnav a:focus-visible,
.topnav a.is-active { color: var(--ink); }
.topnav a.is-active::after { transform: scaleX(1); transform-origin: left; }

.return-link,
.back-button {
  justify-self: end;
  display: inline-grid;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  place-items: center;
  color: var(--ink-dark);
  background: #f3f4ed;
  font-size: 11px;
  font-weight: 600;
  transition: background-color 220ms ease-out, transform 220ms ease-out;
}
.return-link:hover,
.return-link:focus-visible,
.back-button:hover,
.back-button:focus-visible { background: #d4c3a4; transform: translateY(-2px); }

.hero {
  display: grid;
  min-height: 100svh;
  grid-template-columns: minmax(360px, 0.86fr) minmax(0, 1.55fr);
  background: var(--canvas);
}

.hero-copy {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 100svh;
  padding: 110px var(--gutter) 54px;
  align-items: end;
  background:
    linear-gradient(90deg, transparent calc(100% - 1px), rgba(229, 233, 232, 0.13) calc(100% - 1px)),
    var(--canvas);
}

.hero-copy-inner { max-width: 590px; }
.archive-id,
.measured-label {
  margin: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 24px 0 18px;
  font-family: var(--display);
  font-size: clamp(48px, 4.6vw, 80px);
  font-weight: 600;
  line-height: 0.96;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

.hero h1 span {
  display: block;
  white-space: nowrap;
}

.hero-en {
  margin: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-intro {
  max-width: 46ch;
  margin: 36px 0 0;
  color: rgba(229, 233, 232, 0.68);
  font-size: clamp(13px, 1vw, 15px);
  line-height: 1.85;
}

.hero-facts {
  display: grid;
  margin: 42px 0 0;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.hero-facts div { padding: 15px 12px 13px 0; border-bottom: 1px solid var(--line); }
.hero-facts div:nth-child(odd) { border-right: 1px solid var(--line); }
.hero-facts div:nth-child(even) { padding-left: 16px; }
.hero-facts dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-facts dd { margin: 0; font-family: var(--display); font-size: 16px; }
.hero-facts .hero-fact--wide {
  grid-column: 1 / -1;
  padding-right: 0;
  border-right: 0;
}
.hero-facts .hero-fact--wide dd {
  font-family: var(--body);
  font-size: 13px;
  line-height: 1.55;
}

.hero-art {
  position: relative;
  display: grid;
  width: 100%;
  min-width: 0;
  min-height: 100svh;
  padding: 86px 2vw 50px;
  overflow: hidden;
  border: 0;
  color: var(--ink-dark);
  background: var(--paper);
  place-items: center;
}
.hero-art::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(21, 24, 25, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 24, 25, 0.055) 1px, transparent 1px);
  background-size: 12.5% 12.5%;
  content: "";
  pointer-events: none;
}
.model-poster {
  position: relative;
  z-index: 1;
  width: min(86%, 1260px);
  height: auto !important;
  max-height: calc(100svh - 190px);
  aspect-ratio: 16 / 9;
  object-fit: contain;
  filter: contrast(1.04);
  animation: hero-model-in 1300ms var(--ease) both;
  transition: opacity 520ms var(--ease), filter 520ms var(--ease);
}
.model-viewer canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  opacity: 0;
  touch-action: none;
  transition: opacity 640ms var(--ease);
}
.model-viewer canvas:focus-visible { outline: 2px solid var(--accent); outline-offset: -5px; }
.model-viewer.is-ready canvas { opacity: 1; }
.model-viewer.is-ready .model-poster { opacity: 0; filter: contrast(1.04) blur(7px); pointer-events: none; }
.model-status,
.model-toolbar {
  position: absolute;
  top: 96px;
  right: clamp(24px, 3vw, 56px);
  z-index: 4;
}
.model-status {
  width: min(230px, calc(100% - 48px));
  padding: 14px 16px 13px;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: 12px;
  background: rgba(240, 240, 235, .9);
  box-shadow: 0 14px 36px rgba(21, 24, 25, .1);
  backdrop-filter: blur(12px);
}
.model-status[hidden] { display: none; }
.model-status-progress {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(var(--model-progress, 0));
  transform-origin: left;
  transition: transform 240ms ease-out;
}
.model-status strong {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: .04em;
}
.model-status button,
.model-toolbar button {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--ink-dark);
  background: rgba(240, 240, 235, .86);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .04em;
  cursor: pointer;
  backdrop-filter: blur(12px);
  transition: color 180ms ease-out, background-color 180ms ease-out, transform 180ms ease-out;
}
.model-status button { margin-top: 10px; background: var(--ink-dark); color: var(--ink); }
.model-toolbar { display: flex; gap: 8px; opacity: 0; pointer-events: none; transition: opacity 260ms ease-out; }
.model-viewer.is-ready .model-toolbar { opacity: 1; pointer-events: auto; }
.model-toolbar button:hover,
.model-toolbar button:focus-visible { color: var(--ink); background: var(--ink-dark); transform: translateY(-1px); }
.model-toolbar button:disabled { opacity: .45; cursor: wait; transform: none; }
.model-stage-control {
  position: absolute;
  top: 96px;
  left: clamp(24px, 3vw, 56px);
  z-index: 4;
  width: 154px;
  color: var(--ink-dark);
  opacity: 0;
  pointer-events: none;
  transform: translateX(-8px);
  transition: opacity 300ms ease-out, transform 420ms var(--ease);
}
.model-viewer.is-ready .model-stage-control { opacity: 1; pointer-events: auto; transform: translateX(0); }
.model-stage-heading {
  display: flex;
  padding: 0 2px 10px;
  justify-content: space-between;
  align-items: baseline;
  color: rgba(21, 24, 25, .55);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: .07em;
}
.model-stage-heading strong { color: var(--ink-dark); font-size: 9px; font-weight: 500; }
.model-stage-list {
  overflow: hidden;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  background: rgba(240, 240, 235, .82);
  box-shadow: 0 14px 34px rgba(21, 24, 25, .09);
  backdrop-filter: blur(12px);
}
.model-stage-list button {
  display: grid;
  width: 100%;
  min-height: 35px;
  padding: 0 10px;
  border: 0;
  border-bottom: 1px solid rgba(21, 24, 25, .11);
  grid-template-columns: 28px 1fr;
  gap: 2px;
  align-items: center;
  text-align: left;
  color: rgba(21, 24, 25, .58);
  background: transparent;
  cursor: pointer;
  transition: color 180ms ease-out, background-color 180ms ease-out;
}
.model-stage-list button:last-child { border-bottom: 0; }
.model-stage-list button span { font-family: var(--mono); font-size: 8px; letter-spacing: .06em; }
.model-stage-list button strong { font-size: 10px; font-weight: 500; }
.model-stage-list button:hover,
.model-stage-list button:focus-visible { color: var(--ink-dark); background: rgba(21, 24, 25, .07); }
.model-stage-list button.is-active { color: var(--ink); background: var(--ink-dark); }
.model-stage-list button.is-loading { color: var(--ink-dark); background: rgba(165, 139, 99, .22); }
.model-stage-list button:disabled { cursor: wait; }
.model-stage-list button:disabled:not(.is-active):not(.is-loading) { opacity: .52; }
.model-viewer.is-stage-loading canvas { opacity: .66; filter: saturate(.7); }
.model-hint {
  position: absolute;
  right: clamp(24px, 3vw, 56px);
  bottom: 78px;
  z-index: 3;
  margin: 0;
  color: rgba(21, 24, 25, .58);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .04em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 360ms ease-out 220ms, transform 360ms var(--ease) 220ms;
}
.model-viewer.is-ready .model-hint { opacity: 1; transform: translateY(0); }
.model-viewer.has-error .model-status { border-color: rgba(126, 53, 42, .38); }
.hero-art-meta {
  position: absolute;
  right: clamp(24px, 3vw, 56px);
  bottom: 40px;
  left: clamp(24px, 3vw, 56px);
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px solid var(--line-dark);
  padding-top: 12px;
}
.hero-art-meta span { font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; }
.hero-art-meta strong { font-size: 12px; font-weight: 500; }

.inspect-control {
  position: absolute;
  right: clamp(24px, 3vw, 56px);
  top: 96px;
  z-index: 3;
  display: grid;
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  place-items: center;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  background: rgba(240, 240, 235, 0.78);
  backdrop-filter: blur(12px);
}
.inspect-control--dark { top: 18px; right: 18px; color: var(--ink); background: rgba(7, 9, 10, 0.82); border-color: rgba(229, 233, 232, 0.22); }

@keyframes hero-model-in {
  from { clip-path: inset(0 0 100% 0); filter: contrast(1.04) blur(8px); transform: scale(1.035); }
  to { clip-path: inset(0); filter: contrast(1.04) blur(0); transform: scale(1); }
}

.fieldwork-section {
  padding: clamp(100px, 11vw, 180px) 0;
  color: var(--ink);
  background: var(--surface);
}

.fieldwork-head {
  align-items: start;
}

.fieldwork-head .measured-label {
  color: var(--accent);
}

.fieldwork-head h2 {
  max-width: 12ch;
}

.fieldwork-brief {
  display: grid;
  gap: 32px;
}

.fieldwork-brief > p {
  max-width: 62ch;
  color: rgba(229, 233, 232, .66);
}

.fieldwork-section .fieldwork-brief > p {
  color: rgba(229, 233, 232, .66);
}

.fieldwork-method {
  display: grid;
  margin: 0;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.fieldwork-method div {
  display: grid;
  min-height: 58px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
}

.fieldwork-method div:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.fieldwork-method div:nth-child(even) {
  padding-left: 18px;
}

.fieldwork-method dt {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .08em;
}

.fieldwork-method dd {
  margin: 0;
  font-size: 13px;
}

.fieldwork-grid {
  display: grid;
  margin-top: 74px;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-auto-rows: clamp(190px, 18vw, 310px);
  gap: 12px;
}

.fieldwork-card {
  position: relative;
  grid-column: span 5;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--ink);
  background: var(--ink-dark);
  cursor: zoom-in;
}

.fieldwork-card--primary {
  grid-column: span 7;
  grid-row: span 2;
}

.fieldwork-card--detail {
  grid-column: span 4;
}

.fieldwork-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 720ms var(--ease), filter 420ms var(--ease);
}

.fieldwork-card:hover img,
.fieldwork-card:focus-visible img {
  filter: brightness(.88);
  transform: scale(1.018);
}

.fieldwork-card > span {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  min-height: 76px;
  padding: 30px 18px 16px;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  background: linear-gradient(180deg, transparent, rgba(6, 8, 9, .82));
}

.fieldwork-card small {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .08em;
}

.fieldwork-card strong {
  font-family: var(--display);
  font-size: 16px;
  font-weight: 500;
  text-align: right;
}

.anatomy-section { padding: clamp(100px, 11vw, 180px) 0; background: var(--canvas); }
.anatomy-head,
.fieldwork-head,
.drawing-head {
  display: grid;
  gap: clamp(30px, 6vw, 110px);
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  align-items: end;
}
.anatomy-head h2,
.fieldwork-head h2,
.sectional-head h2,
.drawing-head h2,
.archive-summary h2 {
  max-width: 13ch;
  margin: 18px 0 0;
  font-family: var(--display);
  font-size: clamp(44px, 6.2vw, 92px);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.04em;
  text-wrap: balance;
}
.anatomy-head > p,
.fieldwork-brief > p,
.sectional-head > p,
.drawing-head > p,
.archive-summary p {
  margin: 0;
  color: rgba(229, 233, 232, 0.62);
  font-size: 14px;
  line-height: 1.85;
}

.anatomy-wrap { width: min(calc(100% - 32px), 1880px); margin: 78px auto 0; }
.anatomy-accordion {
  display: flex;
  height: min(64vw, 710px);
  min-height: 520px;
  gap: 8px;
  overflow: hidden;
}
.anatomy-panel {
  position: relative;
  flex: 0.45 1 0;
  min-width: 60px;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(229, 233, 232, 0.12);
  border-radius: 14px;
  background: var(--surface);
  cursor: pointer;
  transition: flex 780ms var(--ease), border-color 220ms ease-out;
}
.anatomy-panel.is-active { flex: 5.2 1 0; border-color: rgba(229, 233, 232, 0.28); }
.anatomy-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.36) grayscale(1);
  transition: filter 650ms var(--ease), transform 900ms var(--ease);
}
.anatomy-panel.is-active img { filter: brightness(1) grayscale(0); transform: scale(1.015); }
.panel-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5, 7, 8, 0.03), rgba(5, 7, 8, 0.8)); }
.panel-index,
.panel-title { position: absolute; z-index: 2; left: 18px; }
.panel-index { top: 18px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.panel-title {
  bottom: 18px;
  max-width: 1em;
  font-family: var(--display);
  font-size: 18px;
  line-height: 1.05;
  writing-mode: vertical-rl;
  transition: font-size 320ms ease-out, writing-mode 0s 150ms;
}
.anatomy-panel.is-active .panel-title { max-width: none; font-size: 25px; writing-mode: horizontal-tb; }
.anatomy-readout {
  display: grid;
  padding: 22px 4px 0;
  grid-template-columns: 120px minmax(260px, .8fr) minmax(300px, 1fr) auto;
  gap: 28px;
  align-items: start;
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px;
}
.anatomy-readout > span:first-child,
.anatomy-hint { color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: 0.08em; text-transform: uppercase; }
.anatomy-readout strong { font-family: var(--display); font-size: 20px; font-weight: 500; }
.anatomy-readout p { margin: 0; color: rgba(229, 233, 232, .62); font-size: 13px; line-height: 1.75; }
.anatomy-hint { text-align: right; }

.sectional-section { padding: clamp(100px, 11vw, 180px) 0; color: var(--ink); background: var(--canvas); }
.sectional-head { display: grid; gap: 28px; }
.sectional-head .measured-label { color: var(--accent); }
.sectional-head h2 { max-width: 14ch; }
.sectional-head > p { max-width: 60ch; color: rgba(229, 233, 232, .66); }
.sectional-grid { display: grid; margin-top: 72px; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.sectional-card {
  position: relative;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: 14px;
  color: var(--ink-dark);
  background: #fff;
  cursor: zoom-in;
}
.sectional-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; transition: transform 700ms var(--ease); }
.sectional-card:hover img,
.sectional-card:focus-visible img { transform: scale(1.025); }
.sectional-card > span {
  display: flex;
  padding: 18px 20px;
  justify-content: space-between;
  align-items: baseline;
  border-top: 1px solid var(--line-dark);
}
.sectional-card small { font-family: var(--mono); font-size: 9px; letter-spacing: .08em; }
.sectional-card strong { font-family: var(--display); font-size: 16px; font-weight: 500; }

.drawing-section { padding: clamp(100px, 11vw, 180px) 0; background: var(--surface); }
.drawing-desk {
  display: grid;
  margin-top: 74px;
  grid-template-columns: minmax(230px, 320px) minmax(0, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.drawing-tabs { border-right: 1px solid var(--line); }
.drawing-tabs button {
  display: grid;
  width: 100%;
  min-height: 76px;
  padding: 15px 18px;
  border: 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-content: center;
  text-align: left;
  color: rgba(229, 233, 232, .5);
  background: transparent;
  cursor: pointer;
  transition: color 220ms ease-out, background-color 220ms ease-out;
}
.drawing-tabs button:last-child { border-bottom: 0; }
.drawing-tabs button:hover,
.drawing-tabs button:focus-visible,
.drawing-tabs button[aria-selected="true"] { color: var(--ink); background: rgba(229, 233, 232, .045); }
.drawing-tabs button[aria-selected="true"] span { color: var(--accent); }
.drawing-tabs span { grid-row: 1 / 3; font-family: var(--mono); font-size: 9px; }
.drawing-tabs strong { font-size: 13px; font-weight: 500; }
.drawing-tabs small { color: var(--muted); font-family: var(--mono); font-size: 8px; letter-spacing: .05em; }
.drawing-stage { min-width: 0; padding: 18px; }
.drawing-stage-head {
  display: grid;
  min-height: 58px;
  padding: 0 4px 15px;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.drawing-stage-head strong { color: var(--ink); font-family: var(--display); font-size: 17px; font-weight: 500; letter-spacing: 0; text-transform: none; }
.drawing-stage-head span:last-child { text-align: right; }
.drawing-canvas {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 620px;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: 14px;
  place-items: center;
  background: #fff;
  cursor: zoom-in;
}
.drawing-canvas img {
  width: 100%;
  height: 100%;
  max-height: 740px;
  object-fit: contain;
  transform: translate3d(var(--drawing-x, -1%), var(--drawing-y, -2%), 0) scale(var(--drawing-scale, 1.03));
  transform-origin: center;
  transition: opacity 220ms ease-out, transform 420ms var(--ease);
  will-change: transform;
}
.drawing-canvas.is-switching img { opacity: .25; }

.archive-summary { padding: clamp(100px, 11vw, 180px) 0; background: var(--canvas); }
.archive-summary-grid { display: grid; gap: clamp(36px, 9vw, 150px); grid-template-columns: 1.2fr .8fr; align-items: end; }
.archive-summary h2 { max-width: 13ch; }
.closing {
  display: flex;
  min-height: 180px;
  gap: 30px;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
}
.closing p { margin: 0; color: var(--muted); font-size: 12px; }

dialog#viewer {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
}
dialog#viewer .viewer-zoom {
  position: fixed !important;
  top: max(18px, env(safe-area-inset-top)) !important;
  right: max(78px, calc(env(safe-area-inset-right) + 60px)) !important;
  z-index: 5 !important;
  display: grid !important;
  width: 48px !important;
  height: 48px !important;
  padding: 0 !important;
  border: 1px solid rgba(231, 234, 232, .16) !important;
  border-radius: 50% !important;
  place-items: center !important;
  color: var(--ink) !important;
  background: rgba(16, 18, 18, .88) !important;
  font-family: var(--mono) !important;
  font-size: 9px !important;
  cursor: pointer;
}
dialog#viewer .viewer-zoom:hover,
dialog#viewer .viewer-zoom:focus-visible { color: var(--ink-dark) !important; background: var(--ink) !important; outline: none; }
dialog#viewer.is-zoomed .viewer-stage { display: block !important; overflow: auto !important; padding: 96px 7vw 120px !important; }
dialog#viewer.is-zoomed .viewer-stage img { width: auto !important; max-width: none !important; height: auto !important; max-height: none !important; margin: 0 auto; cursor: zoom-out; }
/* Drawing zoom changes the layout size so every enlarged edge remains reachable by panning. */
dialog#viewer.is-drawing.is-zoomed .viewer-stage {
  display: grid !important;
  place-items: start center !important;
  padding: 96px 7vw 120px !important;
}
dialog#viewer.is-drawing.is-zoomed .viewer-stage img {
  width: min(6144px, calc((100vw - 192px) * var(--viewer-scale, 1))) !important;
  max-width: none !important;
  height: auto !important;
  max-height: none !important;
  margin: auto !important;
  transform: none !important;
}

button:focus-visible,
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

@media (max-width: 1100px) {
  .hero { grid-template-columns: 1fr; }
  .hero-copy { min-height: auto; padding-top: 120px; padding-bottom: 70px; }
  .hero-copy-inner { max-width: 760px; }
  .hero-art { min-height: 72svh; padding-top: 60px; }
  .model-status,
  .model-toolbar,
  .model-stage-control { top: 78px; }
  .anatomy-readout { grid-template-columns: 90px 1fr 1.3fr; }
  .anatomy-hint { display: none; }
  .drawing-desk { grid-template-columns: 220px minmax(0, 1fr); }
  .drawing-canvas { min-height: 520px; }
}

@media (max-width: 820px) {
  .topbar { grid-template-columns: 1fr auto; }
  .topnav { display: none; }
  .anatomy-head,
  .fieldwork-head,
  .drawing-head,
  .archive-summary-grid { grid-template-columns: 1fr; }
  .anatomy-head > p,
  .fieldwork-brief > p,
  .drawing-head > p,
  .archive-summary p { max-width: 62ch; }
  .fieldwork-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .fieldwork-card,
  .fieldwork-card--primary,
  .fieldwork-card--detail { grid-column: 1; grid-row: auto; }
  .fieldwork-card img { aspect-ratio: 16 / 10; }
  .fieldwork-card--detail img { aspect-ratio: 16 / 9; }
  .anatomy-accordion { height: auto; min-height: 0; flex-direction: column; }
  .anatomy-panel { flex: 0 0 86px; width: 100%; height: auto; min-width: 0; transition: flex-basis 700ms var(--ease); }
  .anatomy-panel.is-active { flex: 0 0 min(68vw, 520px); height: auto; }
  .panel-title { max-width: none; writing-mode: horizontal-tb; }
  .anatomy-readout { grid-template-columns: 72px 1fr; }
  .anatomy-readout p { grid-column: 2; }
  .sectional-grid { grid-template-columns: 1fr; }
  .drawing-desk { grid-template-columns: 1fr; }
  .drawing-tabs {
    display: flex;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    scrollbar-width: none;
  }
  .drawing-tabs::-webkit-scrollbar { display: none; }
  .drawing-tabs button { flex: 0 0 158px; border-right: 1px solid var(--line); border-bottom: 0; }
  .drawing-stage-head { grid-template-columns: 1fr auto; }
  .drawing-stage-head span:last-child { display: none; }
  .drawing-canvas { min-height: min(72vw, 520px); }
}

@media (max-width: 560px) {
  :root { --gutter: 18px; }
  .topbar { top: 10px; width: calc(100% - 20px); }
  .brand span { display: none; }
  .return-link { padding-inline: 14px; }
  .hero-copy { padding-top: 104px; }
  .hero h1 { font-size: clamp(46px, 14vw, 70px); }
  .hero h1 span { white-space: normal; }
  .hero-facts { grid-template-columns: 1fr; }
  .hero-facts div:nth-child(odd) { border-right: 0; }
  .hero-facts div:nth-child(even) { padding-left: 0; }
  .hero-art { min-height: 58svh; padding: 44px 0 74px; }
  .model-poster { width: 104%; max-width: none; max-height: none; }
  .hero-art-meta { bottom: 22px; }
  .hero-art-meta strong { display: none; }
  .inspect-control { top: 24px; right: 18px; }
  .model-status,
  .model-toolbar { top: 24px; right: 18px; }
  .model-toolbar { flex-direction: column; }
  .model-toolbar button { min-height: 36px; }
  .model-stage-control {
    top: auto;
    right: 0;
    bottom: 58px;
    left: 0;
    width: auto;
    transform: translateY(7px);
  }
  .model-viewer.is-ready .model-stage-control { transform: translateY(0); }
  .model-stage-heading { padding-inline: 18px; }
  .model-stage-list { display: flex; overflow-x: auto; border-inline: 0; box-shadow: 0 12px 28px rgba(21, 24, 25, .08); scrollbar-width: none; }
  .model-stage-list::-webkit-scrollbar { display: none; }
  .model-stage-list button { flex: 0 0 92px; width: auto; min-height: 42px; border-right: 1px solid rgba(21, 24, 25, .11); border-bottom: 0; grid-template-columns: 23px 1fr; }
  .model-hint { display: none; }
  .anatomy-wrap { width: calc(100% - 20px); margin-top: 48px; }
  .anatomy-readout { gap: 12px; }
  .anatomy-readout strong { font-size: 17px; }
  .anatomy-readout p { grid-column: 1 / -1; }
  .fieldwork-grid { margin-top: 48px; padding-inline: 10px; gap: 10px; }
  .fieldwork-method { grid-template-columns: 1fr; }
  .fieldwork-method div:nth-child(odd) { border-right: 0; }
  .fieldwork-method div:nth-child(even) { padding-left: 0; }
  .fieldwork-card > span { min-height: 66px; padding: 24px 14px 13px; }
  .fieldwork-card strong { max-width: 13ch; font-size: 14px; }
  .sectional-grid { margin-top: 44px; }
  .sectional-card > span { padding: 14px; }
  .drawing-desk { margin-top: 48px; padding-inline: 0; }
  .drawing-stage { padding: 10px; }
  .drawing-stage-head { padding: 4px 4px 12px; }
  .drawing-stage-head strong { font-size: 14px; text-align: right; }
  .drawing-canvas { min-height: 62vw; }
  .closing { min-height: 220px; flex-direction: column; justify-content: center; align-items: flex-start; }
  dialog#viewer .viewer-zoom { top: auto !important; right: 50% !important; bottom: max(16px, env(safe-area-inset-bottom)) !important; transform: translateX(50%); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}