:root {
  --ink: #16233b;
  --ink-soft: #41506a;
  --blue: #3f76bf;
  --blue-deep: #285a9f;
  --ice: #eef4fc;
  --ice-strong: #dbe9fa;
  --orange: #d67a00;
  --orange-pale: #fff3df;
  --green: #238b57;
  --green-pale: #e8f5ed;
  --paper: #ffffff;
  --line: #d7dfeb;
  --muted: #66738a;
  --max-width: 1180px;
  --text-width: 720px;
  --shadow-soft: 0 16px 40px rgba(25, 48, 84, 0.1);
  --shadow-small: 0 8px 24px rgba(25, 48, 84, 0.08);
}

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

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-180%);
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.container {
  width: min(calc(100% - 2.5rem), var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid rgba(215, 223, 235, 0.85);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 2.5rem), var(--max-width));
  min-height: 4.25rem;
  margin-inline: auto;
  gap: 1.5rem;
}

.lab-mark {
  display: inline-flex;
  align-items: center;
  flex: none;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.lab-mark:hover {
  color: var(--ink);
}

.lab-glyph {
  display: grid;
  width: 2.1rem;
  height: 2.1rem;
  place-items: center;
  border-radius: 50%;
  color: var(--paper);
  background: var(--blue);
  font-size: 0.95rem;
  letter-spacing: -0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.nav-links a {
  position: relative;
  flex: none;
  padding: 1.45rem 0 1.25rem;
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: 0.75rem;
  left: 0;
  height: 2px;
  background: var(--blue);
  content: "";
  opacity: 0;
}

.nav-links a:hover,
.nav-links a[aria-current] {
  color: var(--ink);
}

.nav-links a[aria-current]::after {
  opacity: 1;
}

.publication-header {
  position: relative;
  overflow: hidden;
  padding: clamp(3.8rem, 6vw, 5.8rem) 0 clamp(3.5rem, 6vw, 5rem);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 91% 18%, rgba(63, 118, 191, 0.16), transparent 29rem),
    linear-gradient(180deg, #fbfdff 0%, #f5f8fc 100%);
}

.publication-header::after {
  position: absolute;
  right: -14rem;
  bottom: -21rem;
  width: 43rem;
  height: 43rem;
  border: 1px solid rgba(63, 118, 191, 0.16);
  border-radius: 50%;
  box-shadow:
    0 0 0 5rem rgba(63, 118, 191, 0.025),
    0 0 0 10rem rgba(63, 118, 191, 0.018);
  content: "";
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 980px;
}

.venue-line {
  display: inline-block;
  margin: 0 0 1.3rem;
  padding: 0.45rem 0.72rem;
  border-left: 4px solid var(--orange);
  color: var(--ink-soft);
  background: var(--orange-pale);
  font-size: 0.82rem;
  font-weight: 720;
}

.publication-title {
  max-width: 980px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.6rem, 5vw, 4.4rem);
  font-weight: 820;
  letter-spacing: -0.055em;
  line-height: 0.99;
}

.publication-title span {
  color: var(--blue);
}

.hero-deck {
  max-width: 620px;
  margin: 1.45rem 0 1.55rem;
  color: var(--ink-soft);
  font-size: clamp(1.18rem, 2.1vw, 1.55rem);
  font-weight: 520;
  line-height: 1.38;
}

.publication-authors {
  display: flex;
  flex-wrap: wrap;
  gap: 0.18rem 0.9rem;
  margin-bottom: 0.8rem;
  font-size: calc(0.97rem + 5px);
  font-weight: 680;
}

.publication-authors sup,
.affiliations sup {
  color: var(--blue-deep);
  font-weight: 800;
}

.affiliations {
  display: flex;
  flex-wrap: wrap;
  gap: 0.1rem 0.8rem;
  max-width: 650px;
  color: var(--muted);
  font-size: calc(0.8rem + 5px);
  line-height: 1.48;
}

.publication-links {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  max-width: 880px;
  gap: 0.6rem;
  margin-top: 2rem;
}

.resource-button {
  display: flex;
  min-height: 4rem;
  flex-direction: column;
  justify-content: center;
  padding: 0.62rem 0.72rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  text-decoration: none;
}

.resource-button:hover {
  border-color: var(--blue);
  color: var(--blue-deep);
  background: var(--paper);
}

.resource-button--primary {
  border-color: var(--ink);
  color: var(--paper);
  background: var(--ink);
}

.resource-button--primary:hover {
  border-color: var(--blue-deep);
  color: var(--paper);
  background: var(--blue-deep);
}

.resource-label {
  font-size: 0.91rem;
  font-weight: 760;
}

.resource-meta {
  color: var(--muted);
  font-size: 0.67rem;
  line-height: 1.2;
}

.resource-button--primary .resource-meta {
  color: #cfdaea;
}

.method-figure figcaption {
  padding: 0.72rem 0.35rem 0.15rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.section {
  padding: clamp(4.5rem, 8vw, 7rem) 0;
}

.section--tinted {
  border-block: 1px solid var(--line);
  background: var(--ice);
}

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

.split-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 6vw, 6.5rem);
}

.panel-label {
  margin: 0 0 0.55rem;
  color: var(--blue-deep);
  font-size: 0.75rem;
  font-weight: 780;
  letter-spacing: 0.015em;
}

.section h2 {
  max-width: 760px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 3.45rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.06;
}

.prose {
  max-width: var(--text-width);
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.prose p:first-child {
  margin-top: 0;
}

.plain-inference {
  margin-top: 1.7rem;
  padding: 1.1rem 1.25rem;
  border-left: 4px solid var(--green);
  color: var(--ink);
  background: var(--green-pale);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 2.5rem;
}

.section-heading > p:last-child {
  max-width: 680px;
  margin: 0.9rem 0 0;
  color: var(--ink-soft);
  font-size: 1.06rem;
}

.section-heading--with-action {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.text-link {
  flex: none;
  color: var(--blue-deep);
  font-size: 0.9rem;
  font-weight: 750;
}

.demo-frame-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid #bfd0e6;
  border-radius: 0.85rem;
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.demo-frame-shell::before {
  display: block;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  background: #f8fbff;
  content: "Live · hyper3labs/HyperView";
  font-size: 0.72rem;
  font-weight: 680;
}

.demo-frame-shell iframe {
  display: block;
  width: 100%;
  height: min(780px, 78vh);
  min-height: 620px;
  border: 0;
  background: var(--paper);
}

.demo-note {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.method-figure {
  margin: 0;
  padding: clamp(0.6rem, 2vw, 1.2rem);
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--paper);
  box-shadow: var(--shadow-small);
}

.method-figure img {
  width: 100%;
}

.relation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.relation {
  min-height: 15rem;
  padding: 1.35rem;
  border-top: 4px solid var(--blue);
  background: #f7faff;
}

.relation--orange {
  border-top-color: var(--orange);
  background: #fff9ef;
}

.relation--green {
  border-top-color: var(--green);
  background: #f1faf5;
}

.relation-formula {
  margin-bottom: 1.5rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-style: italic;
}

.relation-formula span {
  display: inline-grid;
  width: 1.8rem;
  height: 1.8rem;
  margin-right: 0.45rem;
  place-items: center;
  border-radius: 50%;
  color: var(--paper);
  background: var(--ink);
  font-family: Inter, ui-sans-serif, sans-serif;
  font-size: 0.78rem;
  font-style: normal;
  font-weight: 800;
}

.relation h3,
.results-panel h3,
.caveat-panel h3 {
  margin: 0 0 0.6rem;
  font-size: 1.22rem;
  line-height: 1.22;
}

.relation p,
.results-panel p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.section--intuition {
  border-block: 1px solid var(--line);
  background: #f8fafc;
}

.intuition-paths {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.intuition-path {
  min-width: 0;
  padding: clamp(1.3rem, 2.5vw, 2rem);
  border-top: 4px solid var(--orange);
  color: var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-small);
}

.intuition-path--inference {
  border-top-color: var(--green);
}

.path-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.path-heading h3,
.intuition-note h3 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.25;
}

.path-tag {
  flex: none;
  color: var(--orange);
  font-size: 0.75rem;
  font-weight: 780;
}

.intuition-path--inference .path-tag {
  color: var(--green);
}

pre.intuition-diagram {
  min-height: 10.5rem;
  margin: 1.35rem 0;
  padding: 1.1rem;
  border: 1px solid #30415d;
  border-radius: 0.35rem;
  overflow-x: auto;
  color: #eaf1fb;
  background: var(--ink);
  font: 0.75rem/1.7 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre;
}

.intuition-path > p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.intuition-details {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
}

.intuition-note {
  padding-left: 1.35rem;
  border-left: 4px solid var(--orange);
}

.intuition-note--node {
  border-left-color: var(--blue);
}

.intuition-note p {
  color: var(--ink-soft);
}

.node-list {
  margin: 1rem 0 1.2rem;
  padding: 0;
  list-style: none;
}

.node-list li {
  padding: 0.7rem 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
}

.node-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.analogy {
  margin-bottom: 0;
  color: var(--ink) !important;
}

.cone-explainer {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  padding: clamp(1.5rem, 3.5vw, 3rem);
  border-top: 4px solid var(--blue);
  background: #edf4fd;
  box-shadow: var(--shadow-small);
}

.cone-heading h3 {
  margin: 0 0 1rem;
  font-size: clamp(1.45rem, 2.5vw, 2rem);
  line-height: 1.12;
}

.cone-heading p,
.cone-content p,
.cone-relations li {
  color: var(--ink-soft);
}

.cone-heading p,
.cone-content > p:first-child {
  margin-top: 0;
}

.cone-analogy {
  margin: 1.5rem 0;
  padding: 1.2rem 1.35rem;
  border-left: 4px solid var(--orange);
  color: var(--ink) !important;
  background: var(--paper);
}

.cone-relations {
  margin: 1rem 0 1.5rem;
  padding: 0;
  list-style: none;
}

.cone-relations li {
  display: grid;
  grid-template-columns: minmax(150px, 0.42fr) minmax(0, 1fr);
  gap: 1.25rem;
  padding: 0.85rem 0;
  border-top: 1px solid #c5d6eb;
}

.cone-relations li:last-child {
  border-bottom: 1px solid #c5d6eb;
}

.cone-formula {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  white-space: nowrap;
}

.cone-caveat {
  margin-bottom: 0;
  font-size: 0.9rem;
}

.section-heading--light h2 {
  color: var(--paper);
}

.section-heading--light > p:last-child {
  color: #b9c6da;
}

.results-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.results-panel {
  min-width: 0;
  padding: clamp(1.25rem, 2.5vw, 2rem);
  color: var(--ink);
  background: var(--paper);
}

.results-panel--table {
  grid-column: 1 / -1;
  border-radius: 0.8rem 0.8rem 0.2rem 0.2rem;
}

.panel-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-label {
  color: var(--blue-deep) !important;
}

.metric-key {
  flex: none;
  padding: 0.32rem 0.55rem;
  color: var(--muted);
  background: var(--ice);
  font-size: 0.7rem;
  font-weight: 750;
}

.table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: 0.72rem 0.85rem;
  border-bottom: 1px solid var(--line);
  text-align: right;
}

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

thead th {
  color: var(--muted);
  background: #f6f8fb;
  font-size: 0.73rem;
}

tbody th {
  color: var(--ink-soft);
  font-weight: 680;
}

td.best {
  color: var(--blue-deep);
  background: var(--ice);
  font-weight: 820;
}

td.gain {
  color: var(--green);
  font-weight: 780;
}

.stat-panel {
  min-height: 18rem;
}

.paired-stat {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 2rem 0 1.3rem;
  gap: 0.8rem;
}

.paired-stat div {
  padding: 1rem;
  border-left: 3px solid var(--blue);
  background: var(--ice);
}

.paired-stat strong,
.comparison-stat strong {
  display: block;
  color: var(--blue-deep);
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  letter-spacing: -0.055em;
  line-height: 1;
}

.paired-stat span,
.comparison-stat span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 720;
}

.comparison-stat {
  margin: 2rem 0 1.5rem;
}

.ablation-panel {
  grid-column: 1 / -1;
  border-bottom: 4px solid var(--blue);
}

.ablation-scale {
  max-width: 780px;
  margin: 1.8rem 0 1.4rem;
}

.ablation-row {
  display: grid;
  grid-template-columns: 130px minmax(160px, 1fr) 55px;
  align-items: center;
  gap: 0.8rem;
  margin: 0.72rem 0;
  font-size: 0.8rem;
}

.bar-track {
  height: 0.7rem;
  background: #e5ebf3;
}

.bar-track i {
  display: block;
  height: 100%;
  background: #a8b7cb;
}

.bar-track .bar-full {
  background: var(--blue);
}

.caveat-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  margin-top: 1rem;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border: 1px solid rgba(214, 122, 0, 0.55);
  color: var(--ink);
  background: var(--orange-pale);
}

.caveat-panel .panel-label {
  color: #9a5700 !important;
}

.caveat-panel ul {
  margin: 0;
  padding-left: 1.15rem;
}

.caveat-panel li + li {
  margin-top: 0.8rem;
}

.citation-layout {
  display: grid;
  grid-template-columns: minmax(240px, 0.65fr) minmax(0, 1.35fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.citation-layout > div:first-child > p:last-child {
  max-width: 420px;
  color: var(--ink-soft);
}

.bibtex-card {
  overflow: hidden;
  border-radius: 0.55rem;
  background: var(--ink);
  box-shadow: var(--shadow-small);
}

.bibtex-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid #34435c;
  color: #c8d5e8;
  font-size: 0.74rem;
  font-weight: 700;
}

.copy-button {
  padding: 0.46rem 0.65rem;
  border: 1px solid #52617a;
  border-radius: 0.35rem;
  color: var(--paper);
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.copy-button:hover {
  border-color: #8ebcf2;
  background: #223451;
}

pre {
  max-width: 100%;
  margin: 0;
  padding: 1.2rem;
  overflow-x: auto;
  color: #e8eef7;
  font: 0.78rem/1.62 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre;
}

.site-footer {
  padding: 2.5rem 0;
  color: #aebbd0;
  background: #101a2d;
  font-size: 0.78rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 2rem;
  align-items: start;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: #b9d6f7;
}

.footer-title {
  margin-bottom: 0.5rem !important;
  color: var(--paper);
  font-size: 1rem;
  font-weight: 800;
}

@media (max-width: 980px) {
  .nav-shell {
    align-items: flex-start;
    min-height: auto;
    flex-direction: column;
    gap: 0;
    padding-top: 0.75rem;
  }

  .nav-links {
    width: 100%;
  }

  .nav-links a {
    padding: 0.65rem 0 0.8rem;
  }

  .nav-links a::after {
    bottom: 0.32rem;
  }
}

@media (max-width: 760px) {
  .container,
  .nav-shell {
    width: min(calc(100% - 1.5rem), var(--max-width));
  }

  .publication-header {
    padding-top: 3.4rem;
  }

  .publication-title {
    font-size: clamp(2.55rem, 13vw, 4.2rem);
  }

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

  .split-layout,
  .citation-layout,
  .caveat-panel,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-heading--with-action {
    align-items: start;
    flex-direction: column;
  }

  .relation-grid,
  .intuition-paths,
  .intuition-details,
  .cone-explainer,
  .results-layout {
    grid-template-columns: 1fr;
  }

  .results-panel--table,
  .ablation-panel {
    grid-column: auto;
  }

  .relation {
    min-height: auto;
  }

  .demo-frame-shell iframe {
    height: 650px;
    min-height: 520px;
  }

}

@media (max-width: 480px) {
  .nav-links {
    gap: 1rem;
  }

  .venue-line {
    font-size: 0.73rem;
  }

  .publication-links {
    grid-template-columns: 1fr 1fr;
  }

  .affiliations {
    display: grid;
  }

  .cone-relations li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .paired-stat {
    grid-template-columns: 1fr;
  }

  .ablation-row {
    grid-template-columns: 1fr 50px;
  }

  .ablation-row .bar-track {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .demo-frame-shell iframe {
    height: 560px;
    min-height: 480px;
  }
}

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

@media print {
  .site-header,
  .demo-frame-shell,
  .copy-button {
    display: none;
  }

  .section,
  .publication-header {
    padding-block: 2rem;
  }

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

  .section-heading--light h2,
  .section-heading--light > p:last-child {
    color: var(--ink);
  }
}