:root {
  --ink: #17243d;
  --muted: #667085;
  --line: #dfe4ea;
  --soft: #f8f7f4;
  --paper: #fffefb;
  --orange: #ff7000;
  --orange-soft: #fff0e3;
  --pvf: #006d77;
  --pvf-soft: #e7f3f2;
  --tether: #542f91;
  --tether-soft: #f1edf7;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans", sans-serif;
}

a {
  color: #2174a8;
}

.publication-header {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 15%, rgba(0, 109, 119, 0.10), transparent 29rem),
    radial-gradient(circle at 86% 20%, rgba(84, 47, 145, 0.10), transparent 28rem),
    linear-gradient(180deg, #fff 0%, #fffdf9 100%);
}

.publication-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.publication-header .hero-body {
  padding: 4.5rem 1.5rem 3.2rem;
}

.section-eyebrow,
.closing-kicker {
  margin-bottom: 0.7rem;
  color: var(--orange);
  font: 700 0.78rem/1.2 "Google Sans", sans-serif;
  letter-spacing: 0.18em;
}

.publication-title {
  max-width: 1100px;
  margin: 0 auto 1.7rem !important;
  color: var(--ink) !important;
  font-family: "Google Sans", sans-serif;
  font-size: clamp(2.4rem, 5vw, 4.6rem) !important;
  line-height: 1.08 !important;
  letter-spacing: -0.035em;
}

.le-critique {
  color: var(--orange);
  font-variant: small-caps;
  letter-spacing: 0.005em;
}

.author-row,
.affiliation-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.5rem;
  color: var(--ink);
}

.author-row {
  margin-bottom: 0.55rem;
  font-size: clamp(1.1rem, 2vw, 1.35rem) !important;
}

.author-row sup,
.affiliation-row sup {
  padding-left: 0.14rem;
  color: var(--muted);
}

.affiliation-row {
  color: var(--muted);
}

.affiliation-row a {
  color: inherit;
}

.correspondence {
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin-top: 1.45rem;
}

.publication-links .button {
  min-width: 6.7rem;
  border: 0;
  box-shadow: 0 8px 22px rgba(23, 36, 61, 0.10);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.publication-links .button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(23, 36, 61, 0.16);
}

.top-figure .hero-body {
  padding: 2.2rem 1.5rem 3rem;
}

.figure-shell {
  overflow: hidden;
  margin: 0 auto;
  border: 1px solid rgba(23, 36, 61, 0.10);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(23, 36, 61, 0.08);
}

.figure-shell-wide {
  width: min(94vw, 1480px);
}

.figure-shell img {
  display: block;
  width: 100%;
  height: auto;
}

.figure-shell a,
.result-figure a {
  display: block;
}

.figure-caption {
  max-width: 880px;
  margin: 1.2rem auto 0;
  color: var(--muted);
  font-size: 1.03rem;
}

.section {
  padding: 5.5rem 1.5rem;
}

.section-soft {
  border-top: 1px solid rgba(23, 36, 61, 0.06);
  border-bottom: 1px solid rgba(23, 36, 61, 0.06);
  background: var(--soft);
}

.section .title {
  color: var(--ink);
  font-family: "Google Sans", sans-serif;
}

.section .title.is-3 {
  margin-bottom: 1.7rem;
  font-size: clamp(1.9rem, 3vw, 2.65rem);
  line-height: 1.16;
  letter-spacing: -0.025em;
}

.lead-copy,
.method-copy,
.experiment-lead {
  color: #3f4b61;
  font-size: 1.09rem;
  line-height: 1.75;
}

.contribution-grid {
  margin-top: 2rem;
}

.contribution-card {
  position: relative;
  height: 100%;
  min-height: 205px;
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(23, 36, 61, 0.06);
}

.contribution-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  border-radius: 18px 0 0 18px;
}

.pvf-card::before { background: var(--pvf); }
.tether-card::before { background: var(--tether); }

.method-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 0.8rem;
  border-radius: 50%;
  background: #f1f3f6;
  color: var(--muted);
  font-weight: 800;
  font-size: 0.78rem;
}

.contribution-card h3,
.info-card h4,
.comparison-card h3,
.environment-card h3 {
  margin-bottom: 0.55rem;
  color: var(--ink);
  font-family: "Google Sans", sans-serif;
  font-weight: 700;
}

.contribution-card h3 {
  font-size: 1.4rem;
}

.contribution-card p,
.info-card p,
.environment-card p {
  color: var(--muted);
  line-height: 1.6;
}

.pvf-text { color: var(--pvf) !important; }
.tether-text { color: var(--tether) !important; }

.method-intro {
  align-items: stretch;
}

.method-intro .content {
  font-size: 1.08rem;
  line-height: 1.7;
}

.equation-panel {
  overflow-x: auto;
  margin-top: 1.2rem;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  color: var(--ink);
  text-align: center;
  box-shadow: 0 8px 24px rgba(23, 36, 61, 0.05);
}

.pvf-equation { border-left: 5px solid var(--pvf); }
.tether-equation { border-left: 5px solid var(--tether); }

.guardrail-card {
  height: 100%;
  min-height: 220px;
  padding: 1.7rem;
  border: 1px solid #f0d3ba;
  border-radius: 16px;
  background: var(--orange-soft);
  color: #513722;
}

.guardrail-label {
  margin-bottom: 0.7rem;
  color: #b65300;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

.guardrail-card > p:not(.guardrail-label) {
  line-height: 1.65;
}

.guardrail-equation {
  margin-top: 1.25rem;
  padding: 0.7rem;
  border: 1px solid rgba(182, 83, 0, 0.18);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.70);
  color: var(--ink);
  text-align: center;
  font-size: 1.15rem;
}

.subheading {
  margin: 2.6rem 0 1.1rem !important;
}

.privilege-grid .column {
  display: flex;
}

.info-card {
  width: 100%;
  padding: 1.45rem;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fff;
}

.info-icon {
  display: inline-block;
  margin-bottom: 0.75rem;
  color: var(--pvf);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.info-card h4 {
  font-size: 1.1rem;
}

.not-allowed,
.tether-note {
  margin-top: 1.35rem;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  line-height: 1.55;
}

.not-allowed {
  border: 1px solid #f0d3ba;
  background: #fff8f2;
  color: #694323;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
}

.comparison-card {
  position: relative;
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.pvf-compare { border-top: 5px solid var(--pvf); }
.distill-compare { border-top: 5px solid #7d8799; }

.comparison-label,
.environment-tag {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  background: #eef1f5;
  color: #596579;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.pvf-compare .comparison-label {
  background: var(--pvf-soft);
  color: var(--pvf);
}

.comparison-card h3 {
  font-size: 1.4rem;
}

.comparison-card p {
  color: #4a566a;
  line-height: 1.66;
}

.tradeoff {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.tether-figure {
  margin-top: 2rem;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
}

.tether-equation {
  max-width: 960px;
  margin: 1.5rem auto 0;
}

.rho-scale {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  color: var(--muted);
  font-size: 0.82rem;
}

.rho-line {
  display: block;
  width: min(42vw, 310px);
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--tether), var(--pvf));
}

.tether-note {
  max-width: 960px;
  margin-right: auto;
  margin-left: auto;
  border: 1px solid #d8cde9;
  background: var(--tether-soft);
  color: #4b3670;
}

.experiment-lead {
  max-width: 800px;
  margin-bottom: 1.7rem;
}

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

.environment-card {
  padding: 1.45rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.environment-card h3 {
  font-size: 1.3rem;
}

.privilege-line {
  margin-top: 1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--pvf);
  font-size: 0.9rem;
}

.mini-card {
  border-color: #d8cde9;
  background: #fdfbff;
}

.tether-tag {
  background: var(--tether-soft);
  color: var(--tether);
}

.mini-card .privilege-line {
  color: var(--tether);
}

.results-section {
  background: #fff;
}

.result-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  max-width: 1000px;
  margin: 0 auto 2.4rem;
}

.result-summary {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 14px;
}

.result-summary strong {
  font-family: "Google Sans", sans-serif;
  font-size: 1.15rem;
}

.result-summary p {
  margin: 0;
  color: #455066;
}

.pvf-summary {
  border: 1px solid #b9dcda;
  background: var(--pvf-soft);
}

.pvf-summary strong { color: var(--pvf); }

.tether-summary {
  border: 1px solid #d8cde9;
  background: var(--tether-soft);
}

.tether-summary strong { color: var(--tether); }

.result-figure {
  max-width: 1220px;
  margin: 0 auto 4rem;
  text-align: center;
}

.result-figure img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto;
  border: 1px solid rgba(23, 36, 61, 0.08);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 15px 38px rgba(23, 36, 61, 0.07);
}

.result-figure figcaption {
  max-width: 930px;
  margin: 1rem auto 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.aggregate-heading {
  margin: 0 auto 1.6rem !important;
  text-align: center;
}

.aggregate-figure {
  margin-bottom: 0;
}

.closing-section {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 109, 119, 0.12), transparent 28rem),
    radial-gradient(circle at 80% 80%, rgba(84, 47, 145, 0.12), transparent 28rem),
    #f7f7f4;
}

.closing-section p:not(.closing-kicker) {
  max-width: 750px;
  margin-right: auto;
  margin-left: auto;
  color: #4a566a;
  font-size: 1.08rem;
  line-height: 1.7;
}

.closing-links {
  margin-top: 1.5rem;
}

.footer {
  padding: 3rem 1.5rem 3.5rem;
  background: #fff;
}

.footer-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.footer-copy {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .publication-header .hero-body {
    padding-top: 3rem;
  }

  .title-break {
    display: none;
  }

  .author-row,
  .affiliation-row {
    display: block;
  }

  .author-row .author-block,
  .affiliation-row .author-block {
    display: block;
    margin: 0.32rem 0;
  }

  .section {
    padding: 4rem 1.15rem;
  }

  .figure-shell-wide {
    width: 100%;
    border-radius: 12px;
  }

  .tether-figure {
    left: auto;
    transform: none;
  }

  .top-figure .hero-body {
    padding-right: 0.7rem;
    padding-left: 0.7rem;
  }

  .comparison-grid,
  .environment-grid,
  .result-summary-grid {
    grid-template-columns: 1fr;
  }

  .result-summary {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }

  .result-figure {
    margin-bottom: 2.7rem;
  }

  .equation-panel {
    padding: 0.75rem 0.55rem;
    font-size: 0.82rem;
  }

  .columns.is-variable.method-intro {
    margin-right: 0;
    margin-left: 0;
  }

  .rho-scale {
    align-items: stretch;
  }

  .rho-line {
    align-self: center;
    width: 28vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .publication-links .button { transition: none; }
}