:root {
  --ink: #17202a;
  --muted: #5f6b76;
  --paper: #ffffff;
  --soft: #f5f7f6;
  --line: #dfe6e3;
  --green: #176b5b;
  --green-dark: #0c4f43;
  --green-pale: #e4f2ed;
  --amber: #d99628;
  --shadow: 0 16px 42px rgba(20, 55, 48, 0.1);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Inter", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--green);
}

.section {
  padding: 5rem 1.5rem;
}

.section.is-light,
.hero.is-light {
  background: var(--soft) !important;
}

.publication-header {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 12% 18%, rgba(23, 107, 91, 0.16), transparent 32%),
    radial-gradient(circle at 88% 84%, rgba(217, 150, 40, 0.14), transparent 30%),
    #fbfdfc;
}

.publication-header::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: 0.36;
  background-image:
    linear-gradient(rgba(23, 107, 91, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 107, 91, 0.07) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, #000, transparent 85%);
}

.publication-header .hero-body {
  position: relative;
  padding: 6.5rem 1.5rem 5.5rem;
}

.project-mark {
  display: inline-block;
  margin-bottom: 1.2rem;
  padding: 0.35rem 1rem;
  border: 1px solid rgba(23, 107, 91, 0.25);
  border-radius: 999px;
  color: var(--green-dark);
  background: rgba(255, 255, 255, 0.72);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.25rem;
  font-style: italic;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.publication-title {
  max-width: 1100px;
  margin: 0 auto 1.8rem !important;
  color: var(--ink) !important;
  font-size: clamp(2.25rem, 5vw, 4rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.045em;
  line-height: 1.08 !important;
}

.publication-authors {
  margin: 0 auto 1rem;
  font-size: 1.12rem;
  font-weight: 500;
}

.publication-authors a {
  color: var(--green-dark);
  font-weight: 650;
  text-decoration: none;
}

.publication-authors a:hover {
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.author-block {
  display: inline-block;
  margin: 0.1rem 0.28rem;
}

.affiliations {
  display: flex;
  max-width: 820px;
  margin: 0 auto;
  flex-direction: column;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.affiliations small {
  margin-top: 0.6rem;
}

.venue-badge {
  display: inline-block;
  margin: 1.4rem 0 0.7rem;
  padding: 0.42rem 0.95rem;
  border-radius: 8px;
  color: #fff;
  background: var(--green);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.publication-links {
  margin-top: 0.9rem;
}

.publication-links .button {
  margin: 0.35rem;
  border: 0;
  font-weight: 650;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.publication-links .button.is-dark {
  color: #fff;
  background: var(--ink);
  box-shadow: 0 8px 20px rgba(23, 32, 42, 0.14);
}

.publication-links a.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 11px 25px rgba(23, 32, 42, 0.2);
}

.text-icon {
  display: inline-flex;
  min-width: 1.65rem;
  height: 1.25rem;
  margin-right: 0.35rem;
  align-items: center;
  justify-content: center;
  border: 1px solid currentColor;
  border-radius: 4px;
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0;
}

.code-icon {
  border: 0;
  font-size: 0.78rem;
}

.disabled-link {
  color: #7a858e !important;
  background: #e9eeec !important;
  cursor: not-allowed;
}

.teaser-section {
  padding-top: 3.2rem;
  padding-bottom: 3.8rem;
}

.paper-figure {
  margin: 2.2rem auto 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.paper-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
}

.paper-figure figcaption {
  max-width: 920px;
  margin: 1rem auto 0.15rem;
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.55;
  text-align: center;
}

.hero-figure {
  margin-top: 0;
}

.compact-figure {
  max-width: 880px;
  margin-top: 3rem;
}

.section-heading {
  max-width: 850px;
  margin: 0 auto 2.4rem;
  text-align: center;
}

.section-heading .title,
.bibtex-header .title {
  margin: 0.2rem 0 0.8rem !important;
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 750;
  letter-spacing: -0.035em;
}

.section-heading > p {
  color: var(--muted);
}

.eyebrow {
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.abstract-copy {
  max-width: 900px;
  margin: 0 auto;
  color: #35414b;
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.2rem;
  line-height: 1.85;
  text-align: justify;
}

.abstract-copy strong {
  color: var(--green-dark);
}

.challenge-grid {
  margin-top: 1.5rem;
}

.insight-card {
  height: 100%;
  min-height: 270px;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 28px rgba(20, 55, 48, 0.06);
}

.card-index {
  display: block;
  color: var(--amber);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2.25rem;
  font-style: italic;
  font-weight: 600;
  line-height: 1;
}

.insight-card h3,
.method-step h3,
.result-panel h3,
.analysis-copy h3 {
  margin: 1rem 0 0.65rem;
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 750;
  line-height: 1.35;
}

.insight-card p,
.method-step p,
.analysis-copy p {
  color: var(--muted);
}

.method-steps {
  max-width: 900px;
  margin: 3rem auto 0;
}

.method-step {
  display: grid;
  margin-bottom: 1.2rem;
  padding: 1.7rem;
  grid-template-columns: 52px 1fr;
  gap: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.step-number {
  display: flex;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: var(--green);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.25rem;
  font-style: italic;
}

.method-step h3 {
  margin-top: 0;
}

.equation {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.55rem 0.8rem;
  border-radius: 7px;
  color: var(--green-dark);
  background: var(--green-pale);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.05rem;
  font-style: italic;
}

.metric-strip {
  display: grid;
  margin: 2.8rem 0;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.metric-card {
  display: flex;
  padding: 1.6rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  flex-direction: column;
  text-align: center;
  background: linear-gradient(160deg, #fff, #f3f9f6);
}

.metric-value {
  color: var(--green-dark);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1;
}

.metric-label {
  margin-top: 0.6rem;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 700;
}

.metric-context {
  color: var(--muted);
  font-size: 0.78rem;
}

.result-panels {
  display: grid;
  min-width: 0;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.result-panel {
  min-width: 0;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 28px rgba(20, 55, 48, 0.06);
}

.result-panel h3 {
  margin-top: 0;
}

.result-table {
  font-size: 0.9rem;
}

.result-table th {
  color: #34434b !important;
  background: #f1f5f3;
  white-space: nowrap;
}

.result-table td,
.result-table th {
  padding: 0.8rem !important;
  border-color: var(--line) !important;
  vertical-align: middle;
}

.ours-row {
  color: var(--green-dark);
  background: var(--green-pale) !important;
}

.result-note {
  display: grid;
  margin-top: 1.5rem;
  padding: 1.25rem 1.4rem;
  grid-template-columns: 24px 1fr;
  gap: 0.8rem;
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  color: #5e5139;
  background: #fff7e8;
  font-size: 0.9rem;
}

.note-icon {
  display: inline-flex;
  width: 20px;
  height: 20px;
  margin-top: 0.25rem;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--amber);
  border-radius: 50%;
  color: var(--amber);
  font-family: Georgia, serif;
  font-size: 0.75rem;
  font-style: italic;
  font-weight: 700;
  line-height: 1;
}

.result-note p {
  margin: 0;
}

.analysis-grid {
  align-items: center;
}

.analysis-grid .paper-figure {
  margin-top: 0;
}

.analysis-copy {
  padding: 1.4rem;
}

.analysis-copy h3 {
  margin-top: 0;
}

.analysis-copy ul {
  margin: 1rem 0 1rem 1.1rem;
}

.analysis-copy li {
  margin-bottom: 0.85rem;
  color: var(--muted);
}

.analysis-copy strong {
  color: var(--green-dark);
}

.qualitative-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.qualitative-card {
  margin: 0;
  padding: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: 0 8px 24px rgba(20, 55, 48, 0.07);
}

.qualitative-card img {
  display: block;
  width: 100%;
  border-radius: 10px;
}

.qualitative-card figcaption {
  padding: 0.9rem 0.35rem 0.4rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.bibtex-header {
  display: flex;
  margin-bottom: 1rem;
  align-items: end;
  justify-content: space-between;
}

.copy-bibtex-btn {
  display: inline-flex;
  padding: 0.7rem 1rem;
  align-items: center;
  gap: 0.55rem;
  border: 0;
  border-radius: 9px;
  color: #fff;
  background: var(--green);
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 700;
}

.copy-bibtex-btn:hover,
.copy-bibtex-btn.copied {
  background: var(--green-dark);
}

pre {
  max-width: 100%;
  margin: 0 !important;
  padding: 1.5rem !important;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: #d9eee7 !important;
  background: #172b27 !important;
  font-size: 0.88rem !important;
  line-height: 1.65;
  box-shadow: var(--shadow);
}

pre code {
  color: inherit;
  background: transparent;
}

.footer {
  padding: 2.5rem 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #fff;
  font-size: 0.85rem;
}

.scroll-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 20;
  display: flex;
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--green);
  box-shadow: 0 8px 22px rgba(12, 79, 67, 0.28);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: 180ms ease;
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .metric-strip {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  .section {
    padding: 3.5rem 1rem;
  }

  .publication-header .hero-body {
    padding: 4rem 1rem 3.5rem;
  }

  .publication-title {
    font-size: 2.25rem !important;
  }

  .abstract-copy {
    font-size: 1.08rem;
    text-align: left;
  }

  .method-step {
    padding: 1.25rem;
    grid-template-columns: 40px 1fr;
    gap: 0.8rem;
  }

  .step-number {
    width: 38px;
    height: 38px;
    font-size: 1rem;
  }

  .paper-figure {
    padding: 0.6rem;
  }

  .bibtex-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.7rem;
  }
}

@media (max-width: 520px) {
  .metric-strip {
    grid-template-columns: 1fr;
  }

  .publication-links .link-block {
    display: block;
  }

  .publication-links .button {
    width: 100%;
    justify-content: center;
  }

  .result-panel {
    padding: 1rem;
  }
}

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

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