:root {
  --ink: #151b24;
  --muted: #5c6675;
  --paper: #ffffff;
  --soft: #f5f7fa;
  --blue: #00274c;
  --blue-bright: #0b5ea8;
  --maize: #ffcb05;
  --green: #2f6b4f;
  --green-soft: #eaf3ee;
  --line: #dce2e8;
  --danger: #a53a35;
  --shadow: 0 18px 50px rgba(22, 35, 50, 0.09);
  --radius: 18px;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 4.5rem;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  overflow-x: clip;
}

img,
video {
  display: block;
  max-width: 100%;
}

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

.skip-link {
  background: var(--maize);
  color: var(--blue);
  font-weight: 800;
  left: 1rem;
  padding: 0.65rem 1rem;
  position: fixed;
  top: -5rem;
  z-index: 100;
}

.skip-link:focus {
  top: 1rem;
}

.navbar {
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(220, 226, 232, 0.85);
  backdrop-filter: blur(14px);
}

.navbar-item {
  color: #334052;
  font-size: 0.88rem;
  font-weight: 700;
}

.navbar-item:hover,
.navbar-item:focus {
  background: transparent !important;
  color: var(--blue-bright) !important;
}

.brand-mark {
  align-items: center;
  color: var(--blue) !important;
  display: inline-flex;
  font-size: 1.08rem;
  font-weight: 900;
  gap: 0.65rem;
  letter-spacing: -0.02em;
}

.brand-mark img {
  height: 36px;
  object-fit: contain;
  width: 36px;
}

.publication-hero {
  background:
    radial-gradient(circle at 76% 12%, rgba(255, 203, 5, 0.2), transparent 26rem),
    radial-gradient(circle at 12% 90%, rgba(47, 107, 79, 0.13), transparent 28rem),
    linear-gradient(145deg, #f8fafc 0%, #ffffff 58%, #f1f6f4 100%);
  border-bottom: 1px solid var(--line);
  padding-top: 4rem;
}

.publication-hero .hero-body {
  padding-bottom: 5rem;
  padding-top: 5rem;
}

.hero-grid {
  align-items: center;
  display: grid;
  gap: clamp(2.5rem, 6vw, 6rem);
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, 0.95fr);
}

.hero-grid > *,
.feature-grid > *,
.media-pair > *,
.planning-goal > *,
.experiment-header > *,
.experiment-media > *,
.results-grid > * {
  min-width: 0;
}

.eyebrow,
.section-kicker,
.experiment-type {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.hero-copy h1 {
  color: var(--blue);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.6rem, 5vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.03;
  margin-bottom: 1.5rem;
  overflow-wrap: anywhere;
}

.authors {
  color: #29374a;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.authors span {
  display: inline-block;
}

.affiliations {
  border-left: 3px solid var(--maize);
  color: var(--muted);
  display: grid;
  font-size: 0.9rem;
  gap: 0.25rem;
  margin: 1.15rem 0 1.4rem;
  overflow-wrap: anywhere;
  padding-left: 1rem;
}

.affiliations a {
  color: var(--blue-bright);
  font-weight: 750;
}

.affiliations a:hover,
.affiliations a:focus {
  text-decoration: underline;
}

.acknowledgment-todo {
  background: #fff9db;
  border: 1px solid #f0d75d;
  border-radius: 10px;
  color: #594c16;
  font-size: 0.9rem;
  margin: 1.25rem 0;
  padding: 0.75rem 1rem;
}

.hero-summary {
  color: var(--muted);
  font-size: 1.15rem;
  margin: 1.5rem 0 1.75rem;
  max-width: 45rem;
}

.resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.resource-button {
  background: #fff;
  border: 1px solid #cbd3dc;
  border-radius: 999px;
  color: var(--blue);
  font-weight: 800;
  gap: 0.65rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  white-space: normal;
}

.resource-button.is-primary {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.resource-button.is-disabled {
  background: #f0f2f5;
  color: #7b8490;
  cursor: not-allowed;
  opacity: 0.85;
}

.hero-figure {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: rotate(1.2deg);
}

.hero-figure img {
  aspect-ratio: 5 / 3;
  object-fit: cover;
  width: 100%;
}

.hero-figure figcaption,
.paper-figure figcaption {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
  padding: 0.85rem 1rem 1rem;
}

.section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 1.5rem;
}

.section-light {
  background: #fff;
}

.section-tinted {
  background: var(--soft);
}

.section-dark {
  background:
    radial-gradient(circle at 90% 10%, rgba(47, 107, 79, 0.25), transparent 30rem),
    var(--blue);
  color: #eef4f8;
}

.section-heading {
  margin: 0 auto 3rem;
  max-width: 58rem;
  text-align: center;
}

.section-heading h2 {
  color: var(--blue);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin-bottom: 1rem;
}

.section-heading > p:last-child {
  color: var(--muted);
  font-size: 1.05rem;
}

.section-dark .section-heading h2,
.section-dark .section-heading > p:last-child {
  color: #fff;
}

.section-dark .section-kicker {
  color: var(--maize);
}

.abstract-copy {
  color: #334052;
  column-count: 2;
  column-gap: 3.5rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.08rem;
  line-height: 1.85;
}

.abstract-copy p {
  break-inside: avoid;
  margin-top: 0;
}

.metric-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
  margin: 3rem 0;
}

.metric-card {
  background: var(--blue);
  border-radius: 14px;
  color: #fff;
  padding: 1.4rem;
}

.metric-card strong {
  color: var(--maize);
  display: block;
  font-size: 1.75rem;
  line-height: 1.2;
  margin-bottom: 0.45rem;
}

.metric-card span {
  font-size: 0.85rem;
  line-height: 1.4;
}

.contribution-panel {
  background: var(--green-soft);
  border-left: 5px solid var(--green);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 2rem 2.25rem;
}

.contribution-panel h3,
.feature-copy h3,
.planning-goal h3,
.results-copy h3,
.limitations h3 {
  color: var(--blue);
  font-size: 1.4rem;
  font-weight: 850;
  margin-bottom: 1rem;
}

.contribution-list {
  display: grid;
  gap: 0.75rem;
  margin-left: 1.25rem;
}

.paper-figure {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(22, 35, 50, 0.07);
  overflow: hidden;
}

.paper-figure img {
  height: auto;
  width: 100%;
}

.paper-figure-wide {
  margin: 0 auto;
  max-width: 76rem;
}

.feature-grid {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
}

.feature-grid-reverse {
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
}

.feature-copy {
  color: #3d4857;
}

.feature-copy p + p {
  margin-top: 1rem;
}

.fact-list {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.6rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
}

.fact-list li {
  list-style: none;
  padding-left: 1.5rem;
  position: relative;
}

.fact-list li::before {
  color: var(--green);
  content: "●";
  font-size: 0.65rem;
  left: 0;
  position: absolute;
  top: 0.35rem;
}

.media-pair {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr 1fr;
  margin-top: 2rem;
}

.video-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 8px 26px rgba(22, 35, 50, 0.07);
  overflow: hidden;
}

.video-card video {
  aspect-ratio: 16 / 9;
  background: #0c121a;
  object-fit: contain;
  width: 100%;
}

.video-card-copy {
  color: var(--muted);
  padding: 0.8rem 1rem 1rem;
}

.video-card-copy h3,
.video-card-copy h4 {
  color: var(--blue);
  font-size: 0.95rem;
  font-weight: 850;
  margin-bottom: 0.2rem;
}

.video-card-copy p {
  font-size: 0.82rem;
  line-height: 1.45;
}

.feature-copy .video-card {
  margin-top: 2rem;
}

.figure-grid {
  display: grid;
  gap: 1.25rem;
}

.figure-grid-three {
  align-items: start;
  grid-template-columns: repeat(3, 1fr);
}

.section-dark .paper-figure {
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}

.planning-goal {
  align-items: center;
  display: grid;
  gap: 3rem;
  grid-template-columns: 1.15fr 0.85fr;
  margin-top: 2.5rem;
}

.planning-goal h3 {
  color: var(--maize);
}

.planning-goal p + p {
  margin-top: 1rem;
}

.traversal-group {
  margin-top: 4rem;
}

.subsection-heading {
  align-items: end;
  display: flex;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.subsection-heading h3 {
  color: var(--blue);
  font-size: 1.5rem;
  font-weight: 850;
}

.subsection-heading p {
  color: var(--muted);
  font-size: 0.9rem;
}

.clip-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(3, 1fr);
}

.clip-grid-seven {
  grid-template-columns: repeat(4, 1fr);
}

.mini-video-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.mini-video-card video {
  aspect-ratio: 16 / 9;
  background: #111;
  object-fit: cover;
  width: 100%;
}

.mini-video-card span {
  color: var(--blue);
  display: block;
  font-size: 0.8rem;
  font-weight: 850;
  padding: 0.55rem 0.75rem;
}

.mini-video-card.is-failure {
  border-color: #d9a19e;
}

.mini-video-card.is-failure span {
  color: var(--danger);
}

.results-overview {
  margin-bottom: 3rem;
}

.experiment-stack {
  display: grid;
  gap: 2rem;
}

.experiment-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: clamp(1.25rem, 3vw, 2.25rem);
}

.experiment-header {
  align-items: center;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: auto 120px 1fr;
  margin-bottom: 1.75rem;
}

.experiment-number {
  color: #dce2e8;
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1;
}

.experiment-header > img {
  height: 130px;
  object-fit: contain;
  width: 120px;
}

.experiment-header h3 {
  color: var(--blue);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2rem;
  font-style: italic;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 0.5rem;
}

.experiment-header p:last-child {
  color: var(--muted);
}

.experiment-type {
  margin-bottom: 0.4rem;
}

.experiment-media {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, 1fr);
}

.results-grid {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  margin-top: 4rem;
}

.result-stat {
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
}

.result-stat strong {
  color: var(--green);
  font-size: 2.35rem;
  line-height: 1;
}

.result-stat span {
  color: var(--muted);
  font-size: 0.88rem;
}

.limitations {
  background: var(--blue);
  border-radius: var(--radius);
  color: #edf2f6;
  margin-top: 3rem;
  padding: 2rem;
}

.limitations h3 {
  color: var(--maize);
}

.presentation-video {
  background: #0b1118;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
}

.citation-block {
  background: #0a1c2e;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.citation-block pre {
  background: transparent;
  color: #e6eef5;
  font-size: 0.88rem;
  margin: 0;
  overflow-x: auto;
  padding: 2.25rem;
}

.copy-button {
  background: var(--maize);
  border: 0;
  border-radius: 999px;
  color: var(--blue);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 900;
  padding: 0.55rem 0.85rem;
  position: absolute;
  right: 1rem;
  top: 1rem;
  z-index: 1;
}

.section-dark .acknowledgment-todo {
  margin-top: 1.5rem;
}

.footer {
  background: #f3f5f7;
  color: var(--muted);
  padding: 3.5rem 1.5rem;
}

.footer-grid {
  align-items: center;
  display: flex;
  gap: 2rem;
  justify-content: space-between;
}

.footer-brand {
  margin-bottom: 0.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  font-weight: 800;
  gap: 1.5rem;
}

.template-credit {
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
}

@media (max-width: 1023px) {
  .navbar-menu {
    border-top: 1px solid var(--line);
    box-shadow: 0 12px 20px rgba(22, 35, 50, 0.08);
  }

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

  .hero-figure {
    margin: 0 auto;
    max-width: 50rem;
    transform: none;
  }

  .figure-grid-three {
    grid-template-columns: 1fr;
  }

  .figure-grid-three .paper-figure {
    margin: 0 auto;
    max-width: 42rem;
  }

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

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .publication-hero .hero-body {
    padding-bottom: 3.5rem;
    padding-top: 3.5rem;
  }

  .hero-copy h1 {
    font-size: clamp(2.25rem, 12vw, 3.5rem);
  }

  .abstract-copy {
    column-count: 1;
  }

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

  .feature-grid,
  .feature-grid-reverse,
  .media-pair,
  .planning-goal,
  .results-grid {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .subsection-heading {
    align-items: start;
    flex-direction: column;
    gap: 0.25rem;
  }

  .experiment-header {
    grid-template-columns: auto 90px 1fr;
  }

  .experiment-number {
    font-size: 2.4rem;
  }

  .experiment-header > img {
    height: 100px;
    width: 90px;
  }

  .footer-grid {
    align-items: start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .section {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .resource-links {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .resource-button {
    font-size: 0.78rem;
    height: auto;
    justify-content: center;
    line-height: 1.25;
    min-height: 2.5rem;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .metric-grid,
  .clip-grid,
  .clip-grid-seven,
  .experiment-media {
    grid-template-columns: 1fr;
  }

  .experiment-header {
    grid-template-columns: 70px 1fr;
  }

  .experiment-number {
    display: none;
  }

  .experiment-header > img {
    height: 90px;
    width: 70px;
  }

  .experiment-header h3 {
    font-size: 1.55rem;
  }

  .citation-block pre {
    font-size: 0.72rem;
    padding: 4rem 1rem 1.25rem;
  }
}

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

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