:root {
  --gold: #c0995e;
  --gold-light: #d4b07c;
  --gold-dark: #8a6e42;
  --page: #f7f7f7;
  --surface: #ffffff;
  --surface-raised: #f0f0f0;
  --border: #dcdcdc;
  --text: #000000;
  --text-muted: #666666;
  --button: #555555;
  --green: #4a7453;
  --shadow: none;
  --shadow-hover: none;
  --radius: 4px;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--gold-dark);
  text-decoration: none;
  transition: color 0.18s ease;
}

a:hover {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

:focus-visible {
  outline: 3px solid var(--gold-light);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  transform: translateY(-120%);
  border-radius: 0 0 6px 0;
  background: var(--gold);
  color: #1c1e1f;
  padding: 10px 16px;
  font-weight: 600;
  text-decoration: none;
}

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

.container,
.container-wide {
  width: min(calc(100% - 40px), 1000px);
  margin-inline: auto;
}

.container-wide {
  width: min(calc(100% - 40px), 1120px);
}

/* VOILA Lab navigation */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: #fff;
}

.nav-inner {
  display: flex;
  width: min(calc(100% - 40px), 1000px);
  min-height: 63px;
  align-items: center;
  justify-content: space-between;
  margin-inline: auto;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
  color: #000;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.brand img {
  width: 30px;
  height: 30px;
  border-radius: 0;
}

.brand:hover {
  color: #000;
  text-decoration: none;
  opacity: 0.78;
}

.nav-links {
  display: flex;
  align-items: stretch;
  gap: 4px;
}

.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--gold-dark);
  padding: 19px 12px 17px;
  font-size: 0.94rem;
  font-weight: 600;
  white-space: nowrap;
  text-decoration: none;
}

.nav-links a::after {
  position: absolute;
  right: 12px;
  bottom: 9px;
  left: 12px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--gold);
  content: "";
  transition: transform 0.18s ease;
}

.nav-links a:hover,
.nav-links a:focus,
.nav-links a.nav-active {
  color: var(--gold-light);
}

.nav-links a:hover::after,
.nav-links a:focus::after,
.nav-links a.nav-active::after {
  transform: scaleX(1);
}

/* Project hero */
.hero {
  padding: 30px 0 76px;
}

.hero-content {
  position: relative;
  padding: 42px 52px 38px;
  text-align: center;
}

.hero-content::before {
  content: none;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.77rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow span {
  margin-inline: 7px;
  color: #aaa;
}

.hero h1 {
  max-width: 850px;
  margin: 0 auto;
  color: #000;
  font-size: clamp(2.7rem, 7vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.03;
  text-wrap: balance;
}

.hero h1 span {
  color: var(--gold);
}

.hero-subtitle {
  max-width: 760px;
  margin: 22px auto 0;
  color: #333;
  font-size: clamp(1.02rem, 2.2vw, 1.28rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.5;
}

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 28px;
  gap: 7px 22px;
}

.authors a {
  color: var(--gold-dark);
  font-weight: 600;
  text-decoration: none;
}

.authors a:hover {
  color: var(--gold);
  text-decoration: underline;
}

.authors sup,
.affiliation sup {
  color: var(--gold);
}

.affiliation {
  margin: 10px 0 0;
  color: var(--text-muted);
  font-size: 0.84rem;
}

.affiliation span {
  margin-inline: 8px;
  color: #aaa;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 28px;
  gap: 8px;
}

.button {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 6px 13px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.button:hover {
  text-decoration: none;
}

.button-primary {
  border-color: var(--gold-dark);
  background: var(--gold-dark);
  color: #fff;
}

.button-primary:hover {
  border-color: var(--gold);
  background: var(--gold);
  color: #fff;
  box-shadow: 0 0 0 0.15rem rgba(192, 153, 94, 0.25);
}

.button-secondary {
  border-color: var(--button);
  background: var(--button);
  color: #fff;
}

.button-secondary:hover {
  border-color: #444;
  background: #444;
  color: #fff;
}

.teaser-wrap {
  margin-top: 25px;
}

.teaser-card {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.teaser-card::before,
.contribution-card::before,
.method-figure::before,
.results-explorer::before {
  content: none;
}

.teaser-card img {
  width: 100%;
}

.teaser-card figcaption {
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  padding: 15px 20px 17px;
  font-size: 0.86rem;
  text-align: center;
}

/* Interactive volumetric explorer */
.section-demo {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: #eceae6;
}

.demo-shell {
  width: min(100%, 1120px);
  overflow: hidden;
  margin-inline: auto;
  border: 1px solid #cfcac1;
  border-radius: 4px;
  background: #fff;
  box-shadow: none;
}

.section-presentation {
  border-bottom: 1px solid #2e2e2e;
  background: #171717;
}

.section-presentation .section-heading h2 {
  color: #fff;
}

.presentation-video {
  position: relative;
  width: min(100%, 1080px);
  overflow: hidden;
  margin-inline: auto;
  border: 1px solid #3d3d3d;
  border-radius: 2px;
  background: #050505;
  box-shadow: none;
  aspect-ratio: 16 / 9;
}

.presentation-video iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.demo-toolbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: #f7f6f3;
  padding: 16px 18px;
  gap: 24px;
}

.demo-control-group {
  min-width: 0;
  margin: 0;
  border: 0;
  padding: 0;
}

.demo-control-group legend,
.demo-micro-label {
  display: block;
  margin: 0 0 7px;
  color: #777;
  font-family: var(--mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.demo-segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.demo-segmented button {
  border: 1px solid #ccc6bc;
  border-radius: 5px;
  background: #fff;
  color: #555;
  cursor: pointer;
  padding: 7px 10px;
  font: 600 0.73rem var(--sans);
  transition: border-color 0.16s ease, background 0.16s ease, color 0.16s ease;
}

.demo-segmented button:hover {
  border-color: var(--gold);
  color: var(--gold-dark);
}

.demo-segmented button.is-active,
.demo-segmented button[aria-pressed="true"] {
  border-color: var(--gold-dark);
  background: var(--gold-dark);
  color: #fff;
}

.demo-body {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(250px, 0.6fr);
  background: #171717;
}

.demo-stage-column {
  min-width: 0;
  border-right: 1px solid #373737;
  padding: 22px;
}

.demo-stage-head {
  display: flex;
  min-height: 48px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 20px;
}

.demo-stage-head .demo-micro-label {
  margin-bottom: 2px;
  color: #aaa;
}

.demo-stage-head strong {
  color: #fff;
  font-size: 1rem;
}

.demo-view-label {
  border: 1px solid #494949;
  border-radius: 20px;
  color: #d9d9d9;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 0.66rem;
  white-space: nowrap;
}

.demo-canvas-wrap {
  position: relative;
  max-width: 620px;
  margin-inline: auto;
  border: 1px solid #454545;
  border-radius: 7px;
  background: #090909;
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.32);
}

.demo-main-canvas {
  width: 100%;
  aspect-ratio: 1;
  cursor: crosshair;
  image-rendering: pixelated;
  touch-action: none;
}

.demo-loading {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  border-radius: 20px;
  background: rgba(0, 0, 0, 0.78);
  color: #ddd;
  padding: 7px 12px;
  font-family: var(--mono);
  font-size: 0.66rem;
  white-space: nowrap;
  pointer-events: none;
}

.demo-loading:empty {
  display: none;
}

.demo-slice-control {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  margin-top: 15px;
  gap: 12px;
}

.demo-slice-control label,
.demo-slice-control output {
  color: #bbb;
  font-family: var(--mono);
  font-size: 0.68rem;
}

.demo-slice-control input {
  width: 100%;
  accent-color: var(--gold);
  cursor: pointer;
}

.demo-guide {
  display: flex;
  flex-direction: column;
  padding: 28px 24px;
  color: #ddd;
}

.demo-coordinate-card {
  border-bottom: 1px solid #3a3a3a;
  padding-bottom: 23px;
}

.demo-coordinate-card .demo-micro-label {
  color: #999;
}

.demo-coordinates {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid #444;
  border-radius: 6px;
}

.demo-coordinates span {
  display: grid;
  justify-items: center;
  color: #888;
  padding: 9px 6px 8px;
  font-family: var(--mono);
  font-size: 0.62rem;
  text-transform: uppercase;
}

.demo-coordinates span + span {
  border-left: 1px solid #444;
}

.demo-coordinates strong {
  color: #fff;
  font-size: 0.9rem;
}

.demo-boundary-button {
  display: flex;
  align-items: center;
  margin-top: 23px;
  border: 1px solid #4a4a4a;
  border-radius: 7px;
  background: #222;
  color: #fff;
  cursor: pointer;
  padding: 13px;
  gap: 11px;
  text-align: left;
}

.demo-boundary-button:hover,
.demo-boundary-button[aria-pressed="true"] {
  border-color: var(--gold);
  background: #2c271f;
}

.demo-boundary-button > span:last-child {
  display: grid;
}

.demo-boundary-button strong {
  font-size: 0.78rem;
}

.demo-boundary-button small {
  color: #a7a7a7;
  font-size: 0.66rem;
}

.demo-boundary-swatch {
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(192, 153, 94, 0.15);
}

.demo-notes {
  margin-top: 21px;
  border-bottom: 1px solid #3a3a3a;
  padding-bottom: 19px;
}

.demo-notes p {
  margin: 7px 0;
  color: #aaa;
  font-size: 0.69rem;
}

kbd {
  display: inline-grid;
  min-width: 22px;
  height: 22px;
  place-items: center;
  margin-right: 4px;
  border: 1px solid #555;
  border-bottom-color: #777;
  border-radius: 4px;
  background: #2a2a2a;
  color: #ddd;
  padding-inline: 5px;
  font: 500 0.6rem var(--mono);
  box-shadow: 0 2px 0 #090909;
}

.demo-description {
  margin: auto 0 0;
  color: #c4c4c4;
  font-size: 0.78rem;
  line-height: 1.55;
}

.demo-patches {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--border);
  background: #fff;
}

.demo-patches figure {
  display: flex;
  min-width: 0;
  flex-direction: column;
  margin: 0;
  padding: 16px;
}

.demo-patches figure + figure {
  border-left: 1px solid var(--border);
}

.demo-patches figcaption {
  display: grid;
  min-height: 54px;
  align-content: start;
  margin-bottom: 10px;
}

.demo-patches figcaption strong {
  color: #222;
  font-size: 0.82rem;
}

.demo-patches figcaption span {
  color: var(--text-muted);
  font-size: 0.69rem;
}

.demo-patches canvas {
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1;
  align-self: center;
  border: 1px solid #d3d3d3;
  border-radius: 5px;
  background: #080808;
  image-rendering: pixelated;
}

.demo-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  background: #f7f6f3;
  padding: 14px 18px;
  gap: 22px;
}

.demo-footer p {
  max-width: 700px;
  margin: 0;
  color: #555;
  font-size: 0.72rem;
}

.demo-footer span {
  color: #777;
  font-family: var(--mono);
  font-size: 0.62rem;
  white-space: nowrap;
}

.demo-noscript {
  margin: 0;
  border-top: 1px solid var(--border);
  background: #fff4df;
  padding: 12px 18px;
  color: #6b4f24;
  font-size: 0.76rem;
}

/* Full-resolution synchronized CT viewer */
.demo-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #373737;
  background: #151515;
  color: #fff;
  padding: 17px 20px;
  gap: 24px;
}

.demo-experiment-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.demo-experiment-title .demo-micro-label {
  margin-bottom: 1px;
  color: #8c8c8c;
}

.demo-experiment-title strong {
  display: block;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.demo-live-mark {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(192, 153, 94, 0.14);
}

.demo-experiment-facts {
  display: flex;
  align-items: center;
  color: #999;
  font-family: var(--mono);
  font-size: 0.62rem;
  gap: 0;
}

.demo-experiment-facts span {
  padding: 2px 13px;
}

.demo-experiment-facts span + span {
  border-left: 1px solid #3d3d3d;
}

.demo-experiment-facts strong {
  color: #eee;
  font-size: 0.72rem;
}

.demo-noise-bar {
  display: grid;
  grid-template-columns: auto auto minmax(220px, 1fr);
  align-items: center;
  border-bottom: 1px solid #373737;
  background: #1b1b1b;
  color: #eee;
  padding: 13px 18px;
  gap: 20px;
}

.demo-noise-copy {
  min-width: 132px;
}

.demo-noise-copy .demo-micro-label {
  margin-bottom: 0;
  color: #858585;
}

.demo-noise-copy strong {
  display: block;
  font-size: 0.82rem;
}

.demo-noise-selector {
  display: grid;
  grid-template-columns: repeat(4, minmax(76px, 1fr));
  overflow: hidden;
  border: 1px solid #494949;
  border-radius: 7px;
  background: #111;
}

.demo-noise-selector button {
  display: grid;
  min-height: 43px;
  place-content: center;
  border: 0;
  background: transparent;
  color: #aaa;
  cursor: pointer;
  padding: 5px 12px;
  font-family: var(--mono);
  text-align: center;
  transition: background 0.16s ease, color 0.16s ease;
}

.demo-noise-selector button + button {
  border-left: 1px solid #3b3b3b;
}

.demo-noise-selector button:hover {
  background: #27231d;
  color: #fff;
}

.demo-noise-selector button[aria-pressed="true"] {
  background: var(--gold-dark);
  color: #fff;
}

.demo-noise-selector strong {
  font-size: 0.72rem;
}

.demo-noise-selector span {
  opacity: 0.7;
  font-size: 0.5rem;
  text-transform: uppercase;
}

.demo-noise-bar > p {
  max-width: 520px;
  margin: 0;
  color: #999;
  font-size: 0.67rem;
  line-height: 1.45;
}

.demo-coordinate-bar {
  display: grid;
  grid-template-columns: auto minmax(360px, 1fr) auto;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: #f7f6f3;
  padding: 14px 18px;
  gap: 25px;
}

.demo-coordinate-readout {
  min-width: 128px;
}

.demo-coordinate-readout .demo-micro-label {
  margin-bottom: 0;
}

.demo-coordinate-readout > strong {
  color: #222;
  font: 600 0.9rem var(--mono);
}

.demo-axis-sliders {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
}

.demo-axis-sliders label {
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: center;
  color: #777;
  font: 600 0.66rem var(--mono);
  gap: 8px;
}

.demo-axis-sliders label > span {
  display: grid;
  text-align: center;
  text-transform: uppercase;
}

.demo-axis-sliders output {
  color: #222;
  font-size: 0.7rem;
}

.demo-axis-sliders input {
  width: 100%;
  accent-color: var(--gold-dark);
  cursor: pointer;
}

.demo-interaction-hint {
  color: #777;
  font-family: var(--mono);
  font-size: 0.6rem;
  line-height: 1.45;
  text-align: right;
}

.demo-interaction-hint span {
  color: #222;
  font-weight: 600;
}

.demo-matrix-wrap {
  position: relative;
  min-width: 0;
  overflow: auto;
  background: #0d0d0d;
  padding: 16px;
}

.demo-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  background: #0d0d0d;
}

.demo-volume-panel {
  min-width: 0;
  border-left: 1px solid #373737;
  background: #151515;
  color: #eee;
  padding: 16px;
}

.demo-volume-view + .demo-volume-view {
  margin-top: 16px;
  border-top: 1px solid #373737;
  padding-top: 15px;
}

.demo-volume-head {
  display: flex;
  min-height: 55px;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.demo-volume-head .demo-micro-label {
  margin-bottom: 1px;
  color: #777;
}

.demo-volume-head strong {
  display: block;
  font-size: 0.86rem;
}

.demo-volume-head button {
  border: 1px solid #4b4b4b;
  border-radius: 3px;
  background: transparent;
  color: #bbb;
  cursor: pointer;
  padding: 4px 8px;
  font: 500 0.58rem var(--mono);
}

.demo-volume-head button:hover,
.demo-volume-head button:focus-visible {
  border-color: var(--gold);
  color: #fff;
}

.demo-volume-head button:disabled {
  cursor: not-allowed;
  opacity: 0.35;
}

.demo-volume-error-toggle[aria-pressed="true"] {
  border-color: #e46158;
  background: #8f2823;
  color: #fff;
}

.demo-volume-canvas-wrap {
  position: relative;
  overflow: hidden;
  border: 1px solid #3d3d3d;
  background: #080808;
  aspect-ratio: 1;
}

.demo-volume-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}

.demo-volume-canvas-wrap canvas:active {
  cursor: grabbing;
}

[aria-busy="true"] .demo-volume-canvas-wrap canvas {
  opacity: 0.28;
}

.demo-volume-status {
  position: absolute;
  inset: 50% auto auto 50%;
  width: max-content;
  max-width: calc(100% - 24px);
  transform: translate(-50%, -50%);
  margin: 0;
  color: #aaa;
  font: 500 0.62rem var(--mono);
  text-align: center;
  pointer-events: none;
}

.demo-volume-status:empty {
  display: none;
}

.demo-volume-controls {
  display: grid;
  margin-top: 13px;
  gap: 9px;
}

.demo-volume-control {
  display: grid;
  gap: 5px;
}

.demo-volume-control span {
  display: flex;
  justify-content: space-between;
  color: #aaa;
  font: 500 0.58rem var(--mono);
  text-transform: uppercase;
}

.demo-volume-control output {
  color: var(--gold-light);
}

.demo-volume-control input {
  width: 100%;
  margin: 0;
  accent-color: var(--gold-dark);
  cursor: pointer;
}

.demo-volume-hint {
  margin: 9px 0 0;
  color: #777;
  font-size: 0.61rem;
  line-height: 1.45;
}

.demo-volume-hint strong {
  color: #bbb;
  font-weight: 500;
}

.demo-matrix {
  display: grid;
  min-width: 790px;
  grid-template-columns: 78px repeat(3, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid #3d3d3d;
  border-radius: 7px;
  background: #3d3d3d;
  gap: 1px;
  transition: opacity 0.2s ease;
}

[aria-busy="true"] .demo-matrix {
  opacity: 0.32;
}

.demo-loading {
  position: absolute;
  inset: 50% auto auto 50%;
  z-index: 3;
  width: max-content;
  max-width: calc(100% - 48px);
  transform: translate(-50%, -50%);
  border: 1px solid #4a4a4a;
  border-radius: 22px;
  background: rgba(12, 12, 12, 0.92);
  color: #ddd;
  padding: 9px 14px;
  font-family: var(--mono);
  font-size: 0.65rem;
  text-align: center;
  white-space: normal;
  pointer-events: none;
}

.demo-matrix-corner,
.demo-method-head,
.demo-plane-label {
  background: #1b1b1b;
  color: #eee;
}

.demo-matrix-corner {
  position: relative;
  min-height: 72px;
  overflow: hidden;
  color: #777;
  font: 500 0.48rem var(--mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.demo-matrix-corner::after {
  position: absolute;
  width: 112px;
  height: 1px;
  transform: rotate(42deg);
  transform-origin: left;
  background: #454545;
  content: "";
}

.demo-matrix-corner span:first-child {
  position: absolute;
  bottom: 8px;
  left: 7px;
}

.demo-matrix-corner span:last-child {
  position: absolute;
  top: 8px;
  right: 7px;
}

.demo-method-head {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  gap: 12px;
}

.demo-method-head .demo-micro-label {
  margin-bottom: 0;
  color: #777;
}

.demo-method-head strong {
  font-size: 0.9rem;
}

.demo-method-head small {
  color: #858585;
  font: 500 0.56rem var(--mono);
  text-align: right;
}

.demo-method-head-ours {
  background: #27231d;
}

.demo-method-head-ours strong,
.demo-method-head-ours .demo-micro-label {
  color: var(--gold-light);
}

.demo-plane-label {
  display: grid;
  align-content: center;
  justify-items: center;
  min-height: 0;
  padding: 8px 4px;
}

.demo-plane-label strong {
  color: #fff;
  font: 600 0.83rem var(--mono);
}

.demo-plane-label span {
  color: #777;
  font: 500 0.52rem var(--mono);
  text-transform: uppercase;
}

.demo-plane-label output {
  margin-top: 5px;
  color: var(--gold-light);
  font: 500 0.58rem var(--mono);
}

.demo-view {
  position: relative;
  min-width: 0;
  margin: 0;
  background: #050505;
}

.demo-view-ours {
  background: #17130f;
}

.demo-view canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  background: #050505;
  cursor: crosshair;
  image-rendering: auto;
  touch-action: none;
}

.demo-view canvas:focus-visible {
  position: relative;
  z-index: 2;
  outline-offset: -4px;
}

.demo-view figcaption {
  display: none;
}

.demo-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  background: #f7f6f3;
  color: #333;
  padding: 15px 18px;
  gap: 24px;
}

.demo-footer > div:first-child {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.demo-footer strong {
  flex: 0 0 auto;
  font-size: 0.73rem;
}

.demo-footer p {
  max-width: 720px;
  margin: 0;
  color: #666;
  font-size: 0.7rem;
}

.demo-footer-legend {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  color: #777;
  font: 500 0.6rem var(--mono);
  gap: 10px;
}

.demo-footer-legend span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.demo-footer-legend i {
  display: inline-block;
  width: 14px;
  height: 2px;
  border-radius: 2px;
}

.demo-line-x {
  background: #e07a72;
}

.demo-line-y {
  background: #73b487;
}

.demo-line-z {
  background: #719ed5;
}

/* Section language mirrors the lab site */
.section {
  padding: 78px 0;
}

.section-intro {
  border-top: 1px solid #e6e6e6;
}

.section-heading {
  max-width: 820px;
  margin: 0 0 38px;
  text-align: left;
}

.section-heading h2 {
  display: inline-block;
  margin: 0;
  border-bottom: 2px solid var(--gold);
  color: #000;
  padding-bottom: 9px;
  font-size: clamp(1.65rem, 4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.section-heading > p:last-child:not(.section-kicker) {
  max-width: 700px;
  margin: 16px 0 0;
  color: var(--text-muted);
}

.section-kicker {
  margin-bottom: 8px;
}

.abstract-grid {
  display: grid;
  grid-template-columns: 1fr;
}

.method-figure,
.results-explorer,
.bibtex-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.abstract-copy {
  max-width: 850px;
}

.abstract-copy h3 {
  margin: 0 0 14px;
  color: #000;
  font-size: 1.2rem;
}

.abstract-copy p {
  margin: 0;
  color: #333;
  font-size: 0.96rem;
}

.abstract-copy p + p {
  margin-top: 15px;
}

.at-a-glance {
  display: grid;
  overflow: hidden;
  padding: 8px 24px;
}

.glance-item {
  display: grid;
  grid-template-columns: 54px 1fr;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
}

.glance-item + .glance-item {
  border-top: 1px solid var(--border);
}

.glance-item strong {
  color: var(--gold);
  font-family: var(--mono);
  font-size: 2rem;
  line-height: 1;
}

.glance-item span {
  color: var(--text-muted);
  font-size: 0.81rem;
  font-weight: 500;
  line-height: 1.4;
}

.contribution-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 20px;
  gap: 18px;
}

.contribution-card {
  border-top: 1px solid var(--border);
  padding: 18px 0 0;
}

.contribution-card h3 {
  margin: 0 0 9px;
  color: #000;
  font-size: 1.08rem;
}

.contribution-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Method */
.section-method {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface-raised);
}

.section-heading-light h2 {
  color: #000;
}

.section-heading-light > p:last-child:not(.section-kicker) {
  color: var(--text-muted);
}

.method-figure {
  position: relative;
  padding: 28px;
}

.method-panels {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.method-panels figure {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 2px;
  background: #fff;
}

.method-panels img {
  width: 100%;
  aspect-ratio: 0.65;
  object-fit: contain;
}

.method-panels figcaption {
  border-top: 1px solid var(--border);
  color: #333;
  padding: 9px 8px 11px;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
}

.figure-note {
  max-width: 720px;
  margin: 20px auto 0;
  color: var(--text-muted);
  font-size: 0.87rem;
  text-align: center;
}

.method-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 28px 0 0;
  padding: 0;
  gap: 14px;
  list-style: none;
}

.method-steps li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  border-top: 1px solid #cfcfcf;
  padding-top: 16px;
}

.method-steps li > span {
  display: grid;
  flex: 0 0 27px;
  width: 27px;
  height: 27px;
  place-items: center;
  border-radius: 50%;
  background: var(--gold);
  color: #1c1e1f;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
}

.method-steps h3 {
  margin: 0 0 5px;
  color: #000;
  font-size: 0.9rem;
}

.method-steps p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.79rem;
  line-height: 1.5;
}

/* Results explorer */
.section-results {
  background: var(--page);
}

.results-explorer {
  position: relative;
  overflow: hidden;
}

.result-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: var(--surface-raised);
  padding: 9px 12px;
  gap: 6px;
}

.result-tabs button {
  border: 1px solid transparent;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  padding: 7px 14px;
  font: inherit;
  font-size: 0.79rem;
  font-weight: 600;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.result-tabs button:hover {
  border-color: var(--border);
  background: #fff;
  color: var(--gold-dark);
}

.result-tabs button[aria-selected="true"] {
  border-color: var(--gold-dark);
  background: var(--gold-dark);
  color: #fff;
}

.result-panel {
  margin: 0;
  padding: 28px;
}

.result-image-wrap {
  display: grid;
  min-height: 310px;
  place-items: center;
  overflow: auto;
  border: 1px solid #e3e3e3;
  border-radius: 2px;
  background: #fff;
}

.result-image-wrap img {
  width: 100%;
  max-height: 700px;
  object-fit: contain;
}

/* Keep labels embedded in each paper figure at the CT figure's display scale. */
#panel-cryo .result-image-wrap img {
  width: 74%;
}

#panel-point .result-image-wrap img {
  width: 96%;
}

.result-panel figcaption {
  max-width: 900px;
  margin: 18px auto 0;
  color: var(--text-muted);
  font-size: 0.87rem;
  text-align: center;
}

.result-panel figcaption strong {
  color: #222;
}

/* Citation */
.section-citation {
  border-top: 1px solid var(--border);
  background: var(--surface-raised);
}

.bibtex-card {
  overflow: hidden;
}

.bibtex-toolbar {
  display: flex;
  min-height: 49px;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: #fff;
  padding: 0 17px;
  gap: 11px;
}

.bibtex-toolbar > span:first-child {
  color: var(--gold);
  font-family: var(--mono);
  font-size: 0.73rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.bibtex-toolbar button {
  margin-left: auto;
  border: 1px solid var(--button);
  border-radius: 6px;
  background: var(--button);
  color: #fff;
  cursor: pointer;
  padding: 5px 12px;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
}

.bibtex-toolbar button:hover {
  border-color: var(--gold-dark);
  background: var(--gold-dark);
}

.copy-status {
  min-width: 45px;
  color: var(--green);
  font-size: 0.72rem;
}

.bibtex-card pre {
  overflow: auto;
  margin: 0;
  background: #f6f6f6;
  color: #222;
  padding: 27px 30px;
  font-family: var(--mono);
  font-size: clamp(0.7rem, 1.7vw, 0.84rem);
  line-height: 1.65;
  tab-size: 2;
}

/* Footer shared with VOILA Lab visual language */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--page);
  color: var(--text-muted);
  padding: 35px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 240px));
  gap: 70px;
}

.footer-grid h2 {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.footer-grid div {
  font-size: 0.82rem;
  line-height: 1.65;
}

.footer-grid a {
  color: var(--text-muted);
}

.footer-grid a:hover {
  color: var(--gold);
  text-decoration: none;
}

.footer-copyright {
  margin: 26px 0 0;
  color: #888;
  font-size: 0.76rem;
  line-height: 1.6;
  text-align: center;
}

[hidden] {
  display: none !important;
}

/* Fit the complete 3 x 3 explorer into a 16:10 laptop viewport. */
@media (min-width: 901px) and (max-height: 1000px) {
  .section-demo {
    padding: 18px 0;
  }

  .section-demo .section-heading {
    max-width: 680px;
    margin: 0 auto 13px;
    text-align: center;
  }

  .section-demo .section-kicker {
    margin-bottom: 3px;
  }

  .section-demo .section-heading h2 {
    padding-bottom: 5px;
    font-size: 1.45rem;
  }

  .section-demo .section-heading > p:last-child:not(.section-kicker) {
    display: none;
  }

  .demo-shell {
    width: min(100%, 980px);
    min-width: 760px;
  }

  .demo-header {
    padding: 8px 11px;
    gap: 10px;
  }

  .demo-experiment-title {
    gap: 9px;
  }

  .demo-experiment-title .demo-micro-label {
    font-size: 0.52rem;
  }

  .demo-experiment-title strong {
    font-size: 0.78rem;
  }

  .demo-live-mark {
    width: 9px;
    height: 9px;
    box-shadow: 0 0 0 3px rgba(192, 153, 94, 0.14);
  }

  .demo-experiment-facts {
    font-size: 0.5rem;
  }

  .demo-experiment-facts span {
    padding: 1px 7px;
  }

  .demo-experiment-facts strong {
    font-size: 0.58rem;
  }

  .demo-noise-bar {
    grid-template-columns: 112px 1fr;
    padding: 6px 9px;
    gap: 9px;
  }

  .demo-noise-copy {
    min-width: 0;
  }

  .demo-noise-copy .demo-micro-label {
    font-size: 0.5rem;
  }

  .demo-noise-copy strong {
    font-size: 0.68rem;
  }

  .demo-noise-selector {
    grid-template-columns: repeat(4, minmax(58px, 1fr));
  }

  .demo-noise-selector button {
    min-height: 32px;
    padding: 3px 7px;
  }

  .demo-noise-selector strong {
    font-size: 0.62rem;
  }

  .demo-noise-selector span {
    font-size: 0.43rem;
  }

  .demo-noise-bar > p,
  .demo-interaction-hint,
  .demo-footer p {
    display: none;
  }

  .demo-coordinate-bar {
    grid-template-columns: 112px 1fr;
    padding: 6px 9px;
    gap: 9px;
  }

  .demo-coordinate-readout {
    min-width: 0;
  }

  .demo-coordinate-readout .demo-micro-label {
    font-size: 0.5rem;
  }

  .demo-coordinate-readout > strong {
    font-size: 0.68rem;
  }

  .demo-axis-sliders {
    gap: 7px;
  }

  .demo-axis-sliders label {
    grid-template-columns: 22px 1fr;
    font-size: 0.53rem;
    gap: 4px;
  }

  .demo-axis-sliders output {
    font-size: 0.56rem;
  }

  .demo-matrix-wrap {
    padding: 7px;
  }

  .demo-workspace {
    grid-template-columns: minmax(0, 1fr) 280px;
  }

  .demo-volume-panel {
    padding: 7px;
  }

  .demo-volume-head {
    min-height: 40px;
  }

  .demo-volume-head .demo-micro-label {
    font-size: 0.43rem;
  }

  .demo-volume-head strong {
    font-size: 0.64rem;
  }

  .demo-volume-head button {
    padding: 3px 6px;
    font-size: 0.48rem;
  }

  .demo-volume-controls {
    margin-top: 7px;
    gap: 5px;
  }

  .demo-volume-hint {
    display: none;
  }

  .demo-matrix {
    min-width: 0;
    grid-template-columns: 54px repeat(3, minmax(0, 1fr));
  }

  .demo-matrix-corner,
  .demo-method-head {
    min-height: 44px;
  }

  .demo-matrix-corner {
    font-size: 0.36rem;
  }

  .demo-matrix-corner::after {
    width: 76px;
  }

  .demo-matrix-corner span:first-child {
    bottom: 5px;
    left: 4px;
  }

  .demo-matrix-corner span:last-child {
    top: 5px;
    right: 4px;
  }

  .demo-method-head {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding: 4px 7px;
    gap: 0;
  }

  .demo-method-head .demo-micro-label {
    font-size: 0.43rem;
  }

  .demo-method-head strong {
    font-size: 0.64rem;
  }

  .demo-method-head small {
    font-size: 0.43rem;
    text-align: left;
  }

  .demo-plane-label {
    padding: 3px 2px;
  }

  .demo-plane-label strong {
    font-size: 0.62rem;
  }

  .demo-plane-label span {
    font-size: 0.4rem;
  }

  .demo-plane-label output {
    margin-top: 2px;
    font-size: 0.44rem;
  }

  .demo-footer {
    padding: 6px 9px;
    font-size: 0.58rem;
    line-height: 1.2;
  }
}

@media (max-width: 900px) {
  .demo-workspace {
    grid-template-columns: 1fr;
  }

  .demo-volume-panel {
    border-top: 1px solid #373737;
    border-left: 0;
  }

  .demo-volume-canvas-wrap {
    width: min(100%, 480px);
    margin-inline: auto;
  }

  .demo-matrix {
    min-width: 0;
  }

  .demo-noise-bar {
    grid-template-columns: auto minmax(360px, 1fr);
  }

  .demo-noise-bar > p {
    grid-column: 1 / -1;
  }

  .demo-coordinate-bar {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .demo-coordinate-readout {
    display: flex;
    align-items: baseline;
    gap: 9px;
  }

  .demo-interaction-hint {
    text-align: left;
  }

  .demo-method-head {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
  }

  .demo-method-head small {
    text-align: left;
  }

  .demo-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .demo-body {
    grid-template-columns: 1fr;
  }

  .demo-stage-column {
    border-right: 0;
    border-bottom: 1px solid #373737;
  }

  .demo-guide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .demo-boundary-button,
  .demo-notes {
    margin-top: 0;
  }

  .demo-description {
    grid-column: 1 / -1;
    margin: 0;
  }

  .abstract-grid {
    grid-template-columns: 1fr;
  }

  .at-a-glance {
    grid-template-columns: repeat(3, 1fr);
    padding: 0 16px;
  }

  .glance-item {
    display: block;
    padding: 20px 10px;
    text-align: center;
  }

  .glance-item + .glance-item {
    border-top: 0;
    border-left: 1px solid var(--border);
  }

  .glance-item span {
    display: block;
    margin-top: 7px;
  }

  .method-steps {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .demo-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .demo-experiment-facts {
    width: 100%;
  }

  .demo-experiment-facts span:first-child {
    padding-left: 0;
  }

  .demo-noise-bar {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .demo-noise-bar > p {
    grid-column: auto;
  }

  .demo-matrix-wrap {
    margin-inline: -1px;
    padding: 10px;
  }

  .demo-matrix {
    min-width: 0;
    grid-template-columns: 44px repeat(3, minmax(0, 1fr));
  }

  .demo-matrix-corner,
  .demo-method-head {
    min-height: 54px;
  }

  .demo-matrix-corner {
    font-size: 0.31rem;
  }

  .demo-matrix-corner::after {
    width: 66px;
  }

  .demo-matrix-corner span:first-child {
    bottom: 5px;
    left: 4px;
  }

  .demo-matrix-corner span:last-child {
    top: 5px;
    right: 4px;
  }

  .demo-method-head {
    padding: 6px;
  }

  .demo-method-head .demo-micro-label {
    font-size: 0.4rem;
  }

  .demo-method-head strong {
    font-size: clamp(0.5rem, 2.35vw, 0.68rem);
    line-height: 1.2;
  }

  .demo-method-head small {
    display: none;
  }

  .demo-plane-label strong {
    font-size: 0.58rem;
  }

  .demo-plane-label span {
    font-size: 0.36rem;
  }

  .demo-plane-label output {
    margin-top: 2px;
    font-size: 0.4rem;
  }

  .demo-footer > div:first-child {
    display: block;
  }

  .demo-footer p {
    margin-top: 3px;
  }

  .demo-patches {
    grid-template-columns: 1fr;
  }

  .demo-patches figure + figure {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .demo-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .demo-footer span {
    white-space: normal;
  }

  .container,
  .container-wide,
  .nav-inner {
    width: min(calc(100% - 28px), 1000px);
  }

  .nav-inner {
    min-height: 58px;
  }

  .brand strong {
    display: none;
  }

  .nav-links {
    overflow-x: auto;
    max-width: calc(100vw - 72px);
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-links a {
    padding: 17px 9px 15px;
    font-size: 0.84rem;
  }

  .nav-links a::after {
    right: 9px;
    bottom: 8px;
    left: 9px;
  }

  .hero {
    padding: 22px 0 55px;
  }

  .hero-content {
    padding: 35px 22px 32px;
  }

  .hero h1 {
    font-size: clamp(2.55rem, 13vw, 3.7rem);
  }

  .desktop-break {
    display: none;
  }

  .affiliation span {
    display: block;
    height: 0;
    overflow: hidden;
  }

  .teaser-card {
    overflow-x: auto;
  }

  .teaser-card img,
  .teaser-card figcaption {
    min-width: 760px;
  }

  .teaser-card figcaption {
    text-align: left;
  }

  .section {
    padding: 60px 0;
  }

  .section-heading {
    margin-bottom: 30px;
  }

  .contribution-grid {
    grid-template-columns: 1fr;
  }

  .contribution-card {
    min-height: 0;
  }

  .contribution-card h3 {
    margin-top: 18px;
  }

  .method-panels {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-figure,
  .result-panel {
    padding: 18px;
  }

  .result-tabs {
    overflow-x: auto;
  }

  .result-tabs button {
    flex: 0 0 auto;
  }

  .result-image-wrap {
    display: block;
    min-height: 0;
  }

  .result-image-wrap img {
    min-width: 0;
    margin-inline: auto;
  }

  #panel-cryo .result-image-wrap img {
    min-width: 0;
  }

  #panel-point .result-image-wrap img {
    min-width: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 500px) {
  .demo-header,
  .demo-noise-bar,
  .demo-coordinate-bar {
    padding-inline: 14px;
  }

  .demo-noise-selector {
    grid-template-columns: repeat(2, 1fr);
  }

  .demo-noise-selector button:nth-child(3) {
    border-top: 1px solid #3b3b3b;
    border-left: 0;
  }

  .demo-noise-selector button:nth-child(4) {
    border-top: 1px solid #3b3b3b;
  }

  .demo-experiment-facts {
    align-items: flex-start;
    flex-direction: column;
  }

  .demo-experiment-facts span {
    padding: 1px 0;
  }

  .demo-experiment-facts span + span {
    border-left: 0;
  }

  .demo-axis-sliders {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .demo-matrix {
    min-width: 0;
  }

  .demo-stage-column {
    padding: 15px;
  }

  .demo-guide {
    grid-template-columns: 1fr;
    padding: 20px 16px;
  }

  .demo-description {
    grid-column: auto;
  }

  .demo-segmented button {
    flex: 1 1 40%;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .button {
    padding-inline: 9px;
  }

  .at-a-glance {
    display: block;
    padding-inline: 24px;
  }

  .glance-item + .glance-item {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .method-steps {
    grid-template-columns: 1fr;
  }

  .bibtex-card pre {
    font-size: 0.68rem;
    padding: 20px;
  }

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

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

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