/* Modern CSS Variables for consistent theming */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #64748b;
  --accent-color: #0ea5e9;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --background-primary: #ffffff;
  --background-secondary: #f8fafc;
  --background-accent: #f1f5f9;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-subtle: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Smooth scrolling for better UX */
html {
  scroll-behavior: smooth;
  /* Root font stays 16px up to ~1920px, then grows gently for large displays */
  font-size: clamp(16px, 0.25vw + 11.2px, 22px);
}

body {
  font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 1rem;
  background-color: var(--background-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}


/* Modern Button Styles */
.button {
  border-radius: var(--border-radius) !important;
  font-weight: 600 !important;
  transition: var(--transition) !important;
  border: 2px solid transparent !important;
  position: relative;
  overflow: hidden;
}

.button.is-dark {
  background: var(--text-primary) !important;
  border: none !important;
  color: white !important;
  box-shadow: var(--shadow-md);
}

.button.is-dark:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--primary-color) !important;
}

.button.is-dark:active {
  transform: translateY(0);
  box-shadow: var(--shadow-md);
}

.button.is-dark.is-disabled,
.button.is-dark[disabled] {
  background: #94a3b8 !important;
  color: #f8fafc !important;
  cursor: not-allowed;
  opacity: 0.85;
  box-shadow: none;
  transform: none !important;
}

.footer .icon-link {
    font-size: 25px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer .icon-link:hover {
    color: var(--primary-color);
    transform: translateY(-2px);
}

.link-block a {
    margin: 8px 4px;
}

.publication-links .link-block .button {
  margin: 8px 4px;
  vertical-align: middle;
  min-height: 2.65rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  line-height: 1.15;
}

.publication-links .link-block {
  display: inline-flex;
  align-items: center;
}

.publication-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.35rem 0.15rem;
}

/* In the hero, keep all buttons on a single row on desktop */
.hero-main .publication-links {
  flex-wrap: nowrap;
  gap: 0.5rem;
}

.hero-main .publication-links .link-block .button {
  margin: 0;
}

@media screen and (max-width: 768px) {
  .hero-main .publication-links {
    flex-wrap: wrap;
  }
}

.dnerf {
  font-variant: small-caps;
}


/* Hero Section Modernization */
.hero {
  position: relative;
  overflow: hidden;
}

.hero.is-light {
  background: var(--background-secondary);
  border-top: none;
  border-bottom: none;
}

.hero.is-light::before,
.hero.is-light::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 32px;
  pointer-events: none;
  z-index: 1;
}

.hero.is-light::before {
  top: 0;
  background: linear-gradient(to bottom, var(--background-primary), transparent);
}

.hero.is-light::after {
  bottom: 0;
  background: linear-gradient(to top, var(--background-primary), transparent);
}

.hero-body {
  padding: 4rem 1.5rem;
}

/* Main hero with full-screen background video */
.hero-main {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #f8fafc;
  background: #020617;
  overflow: hidden;
}

.hero-video-grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 1fr);
  gap: 2px;
  overflow: hidden;
  background: rgba(37, 99, 235, 0.15);
}

.grid-cell {
  position: relative;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
}

.grid-cell video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-width: 0;
  min-height: 0;
  transition: transform 0.5s ease, filter 0.5s ease;
}

/* Per-cell darkening overlay (replaces full-page overlay) */
.grid-cell::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.45);
  pointer-events: none;
  z-index: 1;
  transition: background 0.4s ease;
}

.grid-cell:hover::before {
  background: rgba(2, 6, 23, 0.15);
}

/* Bottom gradient for label readability */
.grid-cell::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to top, rgba(2, 6, 23, 0.8) 0%, transparent 100%);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.grid-cell:hover::after {
  opacity: 1;
}

.grid-cell:hover video {
  transform: scale(1.08);
}

/* Label */
.grid-label {
  position: absolute;
  bottom: 6px;
  left: 8px;
  color: #e2e8f0;
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.grid-cell:hover .grid-label {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered fade-in on page load */
@keyframes gridCellReveal {
  from { opacity: 0; transform: scale(1.1); }
  to   { opacity: 1; transform: scale(1); }
}

.grid-cell {
  animation: gridCellReveal 0.6s ease both;
}
.grid-cell:nth-child(1)  { animation-delay: 0.05s; }
.grid-cell:nth-child(2)  { animation-delay: 0.10s; }
.grid-cell:nth-child(3)  { animation-delay: 0.15s; }
.grid-cell:nth-child(4)  { animation-delay: 0.20s; }
.grid-cell:nth-child(5)  { animation-delay: 0.12s; }
.grid-cell:nth-child(6)  { animation-delay: 0.17s; }
.grid-cell:nth-child(7)  { animation-delay: 0.22s; }
.grid-cell:nth-child(8)  { animation-delay: 0.27s; }
.grid-cell:nth-child(9)  { animation-delay: 0.19s; }
.grid-cell:nth-child(10) { animation-delay: 0.24s; }
.grid-cell:nth-child(11) { animation-delay: 0.29s; }
.grid-cell:nth-child(12) { animation-delay: 0.34s; }
.grid-cell:nth-child(13) { animation-delay: 0.26s; }
.grid-cell:nth-child(14) { animation-delay: 0.31s; }
.grid-cell:nth-child(15) { animation-delay: 0.36s; }
.grid-cell:nth-child(16) { animation-delay: 0.41s; }

.hero-main-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(2, 6, 23, 0.6) 0%,
    rgba(2, 6, 23, 0.52) 45%,
    rgba(2, 6, 23, 0.72) 100%
  );
  z-index: 0;
  pointer-events: none;
}

.hero-main .hero-body {
  position: relative;
  z-index: 3;
  width: 100%;
  padding: 8vh 2vw 4vh;
  pointer-events: none;
  /* Flex-center so content stays centered at every viewport width */
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Re-enable pointer events on interactive content inside hero */
.hero-main .hero-body a,
.hero-main .hero-body button {
  pointer-events: auto;
}

.hero-main .hero-main-content {
  padding: 0;
}

/* Remove Bulma's fixed container width — hero content centres via flex above */
.hero-main .container {
  max-width: none !important;
  width: clamp(300px, 80vw, 100%);
  margin: 0 auto;
  text-align: center;
}


/* Publication Content Styling */
.publication-title {
    font-family: 'Inter', sans-serif !important;
    font-weight: 800 !important;
    color: var(--text-primary) !important;
    margin-bottom: 2rem !important;
    line-height: 1.1 !important;
}

.publication-title .title-main,
.publication-title .title-sub {
  display: block;
}

.publication-title .title-main {
  letter-spacing: -0.03em;
}

.publication-title .title-sub {
  margin-top: 0.35rem;
  font-size: 0.62em;
  font-weight: 700;
  line-height: 1.25;
}

.hero-main .publication-title {
  color: #ffffff !important;
  text-shadow: 0 4px 20px rgba(2, 6, 23, 0.45);
}

/* Hero text uses vw so it scales with the viewport, matching the video grid */
@media screen and (min-width: 769px) {
  .hero-main .publication-title {
    font-size: clamp(2.8rem, 3.8vw, 6rem) !important;
  }

  .hero-main .publication-authors {
    font-size: clamp(0.9rem, 1.1vw, 1.6rem) !important;
  }

  .hero-main .affiliations-body {
    font-size: clamp(0.65rem, 0.7vw, 1rem) !important;
  }

  .hero-main .publication-links .button {
    font-size: clamp(0.8rem, 0.85vw, 1.2rem) !important;
    padding: clamp(0.4rem, 0.5vw, 0.8rem) clamp(0.8rem, 1vw, 1.6rem) !important;
  }

  .hero-main .eql-cntrb {
    font-size: clamp(0.7rem, 0.75vw, 1.1rem);
  }
}

.hero-main .publication-authors,
.hero-main .publication-authors .author-name,
.hero-main .eql-cntrb {
  color: #e2e8f0 !important;
}

.hero-main .publication-authors a {
  color: #bfdbfe !important;
}

.hero-main .button.is-dark {
  background: rgba(255, 255, 255, 0.9) !important;
  color: #0f172a !important;
}

.hero-main .button.is-dark:hover {
  background: #ffffff !important;
  color: #0f172a !important;
}

.publication-banner {
  max-height: 70vh;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  margin: 2rem 0;
}

.publication-banner video {
  position: relative;
  left: auto;
  top: auto;
  transform: none;
  object-fit: cover;
  width: 100%;
  height: 100%;
  border-radius: var(--border-radius-lg);
}

.publication-header .hero-body {
  padding: 6rem 1.5rem 4rem;
}

.publication-authors {
    font-family: 'Inter', sans-serif !important;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.publication-venue {
    color: var(--text-secondary);
    width: fit-content;
    font-weight: 600;
    background: var(--background-accent);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    margin-top: 1rem;
    display: inline-block;
}

.publication-awards {
    color: #ef4444;
    width: fit-content;
    font-weight: 700;
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    border-left: 4px solid #ef4444;
    margin-top: 1rem;
}

.publication-authors a {
   color: var(--primary-color) !important;
   text-decoration: none;
   font-weight: 600;
   transition: var(--transition);
   position: relative;
}

.publication-authors a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background: var(--gradient-accent);
    transition: var(--transition);
}

.publication-authors a:hover::after {
    width: 100%;
}

.publication-authors a:hover {
    color: var(--primary-hover) !important;
}

.publication-authors .author-name {
  color: var(--primary-color);
  font-weight: 600;
}

.author-block {
  display: inline-block;
  margin-right: 0.5rem;
  white-space: nowrap;
}

.author-block sup {
  font-size: 0.6em;
}

.publication-banner img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.publication-banner img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-xl);
}

/* Modern Video and Carousel Styling */
.publication-video {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    overflow: hidden;
    border-radius: var(--border-radius-lg) !important;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
}

.publication-video:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.publication-video iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-lg);
}

.publication-body img {
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.publication-body img:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.results-carousel {
  overflow: hidden;
  padding: 1rem 0;
}

.results-carousel .item {
  margin: 1rem;
  overflow: hidden;
  padding: 1.5rem;
  font-size: 0;
  background: var(--background-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.results-carousel .item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.results-carousel .item img,
.results-carousel video {
  margin: 0;
  border-radius: var(--border-radius);
  width: 100%;
  height: auto;
}

.results-carousel .subtitle {
  font-size: 1rem !important;
  color: var(--text-secondary);
  margin-top: 1rem;
  font-weight: 500;
}

/* Pagination and Misc Improvements */
.slider-pagination .slider-page {
  background: var(--primary-color);
  border-radius: 50%;
  transition: var(--transition);
}

.slider-pagination .slider-page.is-active {
  background: var(--primary-hover);
  transform: scale(1.2);
}

.eql-cntrb { 
  font-size: 0.875rem;
  color: var(--text-light);
  font-style: italic;
}

/* Section Titles */
.title.is-3 {
  font-family: 'Inter', sans-serif !important;
  font-weight: 700 !important;
  color: var(--text-primary);
  margin-bottom: 2rem !important;
  position: relative;
  padding-bottom: 1rem;
}

.title.is-3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 60px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
  transform: translateX(-50%) scaleX(0);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.25s;
}

.title.is-3.is-visible::after {
  transform: translateX(-50%) scaleX(1);
}

/* Content Improvements */
.content.has-text-justified {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.content.has-text-justified p {
  margin-bottom: 1.5rem;
}

/* Footer Improvements */
.footer {
  background: var(--background-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 1.5rem;
}

.footer .content {
  color: var(--text-secondary);
  line-height: 1.7;
}

.footer a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition);
}

.footer a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* BibTeX Styling */
pre {
  background: var(--background-accent) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: var(--border-radius) !important;
  padding: 1.5rem !important;
  font-size: 0.9rem !important;
  overflow-x: auto;
  box-shadow: var(--shadow-sm);
}

code {
  background: var(--background-accent) !important;
  color: var(--text-primary) !important;
  font-family: 'SF Mono', 'Monaco', 'Cascadia Code', 'Roboto Mono', monospace !important;
}

/* BibTeX Section Improvements */
.bibtex-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.copy-bibtex-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.copy-bibtex-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.copy-bibtex-btn.copied {
  background: #10b981;
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
}

.scroll-to-top:hover {
  background: var(--primary-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}


/* More Works Dropdown */
.more-works-container {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 1000;
}

/* Outline panel (inside more-works-container, below Quick Links button) */
.outline-panel {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  background: var(--background-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.outline-panel-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.6rem 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
  transition: var(--transition);
}

.outline-panel-title:hover {
  background: var(--background-secondary);
}

.outline-panel-title i {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.outline-panel-title span {
  flex: 1;
}

.outline-fold-icon {
  transition: transform 0.2s ease;
  color: var(--text-secondary);
}

.outline-panel.is-collapsed .outline-fold-icon {
  transform: rotate(-90deg);
}

.outline-links {
  display: flex;
  flex-direction: column;
  padding: 0.25rem 0.5rem 0.5rem;
  border-top: 1px solid var(--border-color);
  overflow: hidden;
  transition: max-height 0.25s ease, opacity 0.2s ease, padding 0.25s ease;
  max-height: 500px;
  opacity: 1;
}

.outline-panel.is-collapsed .outline-links {
  max-height: 0;
  opacity: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-top-color: transparent;
}

.outline-panel .outline-link {
  display: block;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.25;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  transition: var(--transition);
}

.outline-panel .outline-link:hover {
  color: var(--primary-color);
  background: rgba(37, 99, 235, 0.08);
}

.outline-panel .outline-link.active {
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
  font-weight: 700;
}

@media (max-width: 1300px) {
  .outline-panel {
    display: none;
  }
}

.more-works-btn {
  background: var(--background-primary);
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Inter', sans-serif;
}

.more-works-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--background-secondary);
  border-color: var(--primary-color);
}

.more-works-btn .dropdown-arrow {
  transition: var(--transition);
  font-size: 0.8rem;
}

.more-works-btn.active .dropdown-arrow {
  transform: rotate(180deg);
}

.more-works-dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 400px;
  max-width: 90vw;
  background: var(--background-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  max-height: 70vh;
  overflow-y: auto;
}

.more-works-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.dropdown-header h4 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.close-btn:hover {
  background: var(--background-accent);
  color: var(--text-primary);
}

.works-list {
  padding: 1rem;
}

.work-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
  margin-bottom: 0.5rem;
}

.work-item:hover {
  background: var(--background-accent);
  transform: translateX(4px);
}

.work-item-placeholder {
  opacity: 0.8;
  cursor: default;
  border: 1px dashed var(--border-color);
}

.work-item-placeholder:hover {
  transform: none;
  background: var(--background-primary);
}

.work-info h5 {
  margin: 0 0 0.5rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
}

.work-info p {
  margin: 0 0 0.5rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.work-venue {
  font-size: 0.8rem;
  color: var(--text-light);
  font-style: italic;
}

.work-item .fas {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-top: 0.2rem;
  flex-shrink: 0;
}


/* Affiliations sizing */
.affiliations-body {
  font-size: 0.75rem !important;
  line-height: 1.6 !important;
}

/* Foldable affiliations (mobile only) */
.affiliations-toggle {
  display: none;
}

/* Let hover pass through blank areas of hero text to the video grid */
.hero-main .publication-authors,
.hero-main .eql-cntrb,
.hero-main .affiliations-wrap,
.hero-main .affiliations-body {
  pointer-events: none;
}

.hero-main .publication-authors a,
.hero-main .affiliations-toggle {
  pointer-events: auto;
}

/* Mobile Responsive Improvements */
@media screen and (max-width: 768px) {
  .hero-body {
    padding: 2rem 1.25rem;
  }

  .hero-main {
    min-height: 100svh;
    align-items: center;
  }

  .affiliations-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 0.25em 0.9em;
    color: #cbd5e1;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 0.3em;
  }

  .affiliations-arrow {
    font-size: 0.55rem;
    transition: transform 0.2s ease;
  }

  .affiliations-wrap.is-open .affiliations-arrow {
    transform: rotate(180deg);
  }

  .affiliations-body {
    display: none;
  }

  .affiliations-wrap.is-open .affiliations-body {
    display: block;
  }

  .hero-main .hero-main-content {
    padding: 0;
  }

  .hero-main .hero-body {
    flex-grow: 0;
    padding-top: 0;
    padding-bottom: 0;
  }

  .hero-main .publication-title {
    font-size: 1.8rem !important;
    line-height: 1.25 !important;
    margin-bottom: 0.6rem !important;
  }

  .hero-main .title-main {
    font-size: 2.8rem !important;
  }

  .hero-main .title-sub {
    font-size: 0.9rem !important;
  }

  /* Tighten spacing between authors → equal-contrib → affiliations */
  .hero-main .publication-authors {
    margin-bottom: 0.35rem !important;
  }

  .hero-main .affiliations-wrap {
    margin-top: 0.15em !important;
  }

  /* Author list: inline flow, centered */
  .publication-authors[style*="grid-template-columns: repeat(3"] {
    display: flex !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    gap: 0.15em 0.6em !important;
    max-width: none !important;
    font-size: 0.8rem !important;
  }

  /* Affiliations: smaller text */
  .publication-authors .is-size-6,
  .is-size-6.publication-authors {
    font-size: 0.75rem !important;
    line-height: 1.5 !important;
  }

  /* Buttons: 3-column grid so 5 buttons split 3+2, bottom row centered */
  .publication-links {
    display: grid;
    grid-template-columns: repeat(6, auto);
    justify-content: center;
    gap: 0.4rem;
  }

  .publication-links .link-block {
    display: inline-block;
    grid-column: span 2;
  }

  /* Bottom row: offset by 1 column to center 2 items in a 6-col grid */
  .publication-links .link-block:nth-child(4) {
    grid-column: 2 / span 2;
  }

  .publication-links .button {
    margin: 0 !important;
    font-size: 0.72rem !important;
    padding: 0.35rem 0.65rem !important;
    min-height: auto !important;
    width: auto;
  }

  .more-works-container {
    bottom: 0.75rem;
    right: 0.75rem;
    left: auto;
    top: auto;
  }

  .more-works-btn {
    padding: 0.5rem 0.8rem;
    font-size: 0.75rem;
  }

  .more-works-dropdown {
    width: calc(100vw - 1.5rem);
    right: 0;
    left: auto;
    bottom: calc(100% + 0.5rem);
    top: auto;
  }

  .scroll-to-top {
    bottom: 3.5rem;
    right: 0.75rem;
    width: 36px;
    height: 36px;
    font-size: 0.85rem;
  }

  .content.has-text-justified {
    font-size: 0.95rem;
  }

  .how-section .how-top-videos {
    grid-template-columns: 1fr;
  }

  /* Demo sections */
  .demo-section {
    padding: 1.5rem 0;
  }

  .demo-section > .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .demo-title {
    font-size: 1.15rem !important;
  }

  .demo-desc {
    font-size: 0.85rem;
  }

  .demo-video-label {
    font-size: 0.75rem;
    padding: 0.45rem 0.75rem;
  }

  /* Videos: match DF-visualization scaling (16:9 cover) — tighter radius on mobile */
  .demo-main-video-wrap {
    max-width: 100%;
    border-radius: 10px;
  }

  .demo-multi-video-wrap {
    border-radius: 10px;
  }

  .how-section .how-top-videos .demo-video-cell,
  .how-section .how-scale-row .demo-video-cell,
  .demo-side-by-side .demo-video-cell {
    border-radius: 10px;
  }

  .how-section .how-model-card {
    border-radius: 10px;
  }

  .vision-only-title {
    font-size: 0.9rem;
  }

  /* Heading anchors: always hidden on mobile (no hover) */
  .heading-anchor {
    display: none;
  }

  /* Stats section */
  .stats-section .stats-grid {
    grid-template-columns: 1fr;
  }

  .stats-card h3 {
    font-size: 1rem;
  }

  /* Abstract */
  .content.has-text-justified p {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  /* Paper PDF embed — shorter on mobile */
  #paper-section iframe {
    height: 350px;
  }

  /* BibTeX */
  #bibtex-code {
    font-size: 0.7rem;
  }

  /* Footer */
  .footer .content p {
    font-size: 0.8rem;
  }

  /* MuJoCo section */
  .mujoco-session-section .mujoco-session-frame-wrap iframe {
    height: 60vh;
    min-height: 320px;
  }

  .mujoco-session-section .mujoco-session-launch {
    min-height: 40vh;
  }

  .mujoco-session-section .mujoco-session-note {
    font-size: 0.75rem;
  }
}

@media screen and (max-width: 480px) {
  .hero-main .hero-body {
    padding-top: 0;
    padding-bottom: 0;
  }

  .hero-main .publication-title {
    font-size: 1.4rem !important;
  }

  .hero-main .title-main {
    font-size: 2.2rem !important;
  }

  .hero-main .title-sub {
    font-size: 0.78rem !important;
  }

  .publication-links {
    gap: 0.3rem;
  }

  .publication-links .button {
    font-size: 0.65rem !important;
    padding: 0.3rem 0.55rem !important;
  }

  .publication-links .button .icon {
    font-size: 0.6rem !important;
    margin-right: 0.2em !important;
  }

  .demo-section .demo-tab {
    font-size: 0.65rem;
    padding: 0.3rem 0.55rem;
  }

  .publication-authors[style*="grid-template-columns: repeat(3"] {
    font-size: 0.72rem !important;
  }

  .more-works-container {
    position: fixed;
    bottom: 0.75rem;
    right: 0.75rem;
    left: auto;
    z-index: 1000;
  }

  /* Contribution cards */
  .contribution-card-title {
    font-size: 0.95rem;
  }

  .contribution-card-text {
    font-size: 0.82rem;
  }
}

/* Tablet Responsive */
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .hero-body {
    padding: 3rem 2rem;
  }
  
  .publication-header .hero-body {
    padding: 4rem 2rem 3rem;
  }
}

/* ── Scroll-triggered reveal system ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.reveal--left {
  opacity: 0;
  transform: translateX(-24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.reveal--right {
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.reveal--scale {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

/* Opacity-only reveal for elements whose own CSS sets a transform (e.g. centering via translateX).
   Does not touch transform at all — only fades in. */
.reveal--fade {
  opacity: 0;
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity;
}

.reveal--fade.is-visible {
  opacity: 1;
  will-change: auto;
}

.reveal.is-visible,
.reveal--left.is-visible,
.reveal--right.is-visible,
.reveal--scale.is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

/* Stagger children inside a .reveal-stagger parent */
.reveal-stagger > .reveal,
.reveal-stagger > .reveal--left,
.reveal-stagger > .reveal--right,
.reveal-stagger > .reveal--scale {
  transition-delay: calc(var(--reveal-i, 0) * 80ms);
}

/* ── Hero stagger entrance (pure CSS) ── */
@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-stagger {
  opacity: 0;
  animation: heroFadeIn 0.7s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.hero-stagger--1 { animation-delay: 0.1s; }
.hero-stagger--2 { animation-delay: 0.25s; }
.hero-stagger--3 { animation-delay: 0.4s; }
.hero-stagger--4 { animation-delay: 0.55s; }
.hero-stagger--5 { animation-delay: 0.7s; }

/* Improved focus states for accessibility */
.button:focus,
.related-works-btn:focus,
a:focus,
.more-works-btn:focus,
.close-btn:focus,
.copy-bibtex-btn:focus,
.scroll-to-top:focus,
.demo-tab:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}


/* Key contributions: hover-highlight rectangles */
.contributions-section .contributions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  max-width: 56rem;
  margin: 0 auto;
  overflow: visible;
}

.contributions-section .contribution-card {
  padding: 1.5rem 1.75rem;
  border-radius: var(--border-radius-lg);
  background: var(--background-primary);
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.2s ease, background 0.2s ease;
  cursor: pointer;
  position: relative;
  z-index: 1;
}
.contributions-section .contribution-card:is(:hover, :focus-visible, .is-active) {
  border-color: var(--primary-color);
  box-shadow: 0 12px 28px rgba(37, 99, 235, 0.15), 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
  background: linear-gradient(135deg, #fafbff 0%, #f8fafc 100%);
}
.contributions-section .contribution-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}
.contributions-section .contribution-card:is(:hover, :focus-visible, .is-active) .contribution-card-title {
  color: var(--primary-color);
}
.contributions-section .contribution-card-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.contributions-section .contribution-popover {
  position: absolute;
  top: 50%;
  width: min(320px, 80vw);
  padding: 0.95rem 1rem;
  border-radius: 14px;
  border: 1px solid #bfdbfe;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  box-shadow: 0 16px 30px rgba(30, 41, 59, 0.16);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 20;
}

.contributions-section .contribution-popover h4 {
  margin: 0 0 0.4rem 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary-hover);
}

.contributions-section .contribution-popover p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.contributions-section .contribution-card.pop-left .contribution-popover {
  right: calc(100% + 0.75rem);
  transform: translate(10px, -50%);
}

.contributions-section .contribution-card.pop-right .contribution-popover {
  left: calc(100% + 0.75rem);
  transform: translate(-10px, -50%);
}

.contributions-section .contribution-card.pop-left .contribution-popover::after,
.contributions-section .contribution-card.pop-right .contribution-popover::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 10px;
  height: 10px;
  background: #f8fbff;
  border-top: 1px solid #bfdbfe;
  border-right: 1px solid #bfdbfe;
}

.contributions-section .contribution-card.pop-left .contribution-popover::after {
  right: -6px;
  transform: translateY(-50%) rotate(45deg);
}

.contributions-section .contribution-card.pop-right .contribution-popover::after {
  left: -6px;
  transform: translateY(-50%) rotate(225deg);
}

.contributions-section .contribution-card.is-expanded {
  z-index: 12;
}

.contributions-section .contribution-card.is-expanded .contribution-popover {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.contributions-section .contribution-card.pop-left.is-expanded .contribution-popover {
  transform: translate(0, -50%);
}

.contributions-section .contribution-card.pop-right.is-expanded .contribution-popover {
  transform: translate(0, -50%);
}

@media (max-width: 768px) {
  .contributions-section .contributions-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .contributions-section .contribution-card {
    padding: 1rem 1.15rem;
  }

  .contributions-section .contribution-card-title {
    font-size: 0.95rem;
    margin-bottom: 0.3rem;
  }

  .contributions-section .contribution-card-text {
    font-size: 0.82rem;
    line-height: 1.5;
  }

  .contributions-section .contribution-popover {
    position: static;
    width: 100%;
    margin-top: 0;
    padding: 0 0.85rem;
    border-radius: 10px;
    transform: none !important;
    opacity: 1;
    visibility: visible;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.35s ease,
                margin-top 0.35s ease;
    border-left: 3px solid transparent;
  }

  .contributions-section .contribution-card.is-expanded .contribution-popover {
    max-height: 200px;
    padding: 0.7rem 0.85rem;
    margin-top: 0.6rem;
    border-left-color: var(--primary-color);
  }

  .contributions-section .contribution-popover h4 {
    font-size: 0.82rem;
    margin-bottom: 0.25rem;
  }

  .contributions-section .contribution-popover p {
    font-size: 0.78rem;
    line-height: 1.45;
  }

  .contributions-section .contribution-popover::after {
    display: none;
  }
}

/* Interactive demo sections – beautified */
.demo-section {
  padding: 2.5rem 0;
}

.how-section .how-model-card {
  max-width: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.12);
  background: #ffffff;
}

.how-section .how-model-card img {
  width: 100%;
  display: block;
  height: auto;
}

.how-section .how-model-caption {
  padding: 1rem 1.25rem 1.1rem;
  text-align: center;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  border-top: 1px solid var(--border-color);
}

.how-section .how-model-caption h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.how-section .how-model-caption p {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.how-section .how-layout {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  gap: 1.25rem;
}

.how-section .how-videos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.how-section .how-top-videos {
  padding: 0;
  gap: 1.25rem;
}

.how-section .how-top-videos .demo-video-cell {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--border-color);
  background: var(--background-primary);
}

.how-section .how-scale-row {
  width: 100%;
  max-width: none;
  margin: 0;
}

.how-section .how-scale-row .demo-video-cell {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--border-color);
  background: var(--background-primary);
}

.how-section .how-video-frame {
  aspect-ratio: 16 / 9;
  background: #000;
}

.how-section .how-top-videos .demo-video-cell video,
.how-section .how-scale-row .demo-video-cell video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.how-section .how-video-title {
  padding: 0.7rem 1rem;
  text-align: center;
  font-weight: 700;
  color: var(--text-primary);
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--border-color);
}

.how-section .how-top-videos .demo-video-label,
.how-section .how-scale-row .demo-video-label {
  min-height: 2.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.demo-section .demo-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.demo-section .demo-desc {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
  font-size: 1rem;
}
.demo-section .demo-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-bottom: 1.25rem;
  padding: 0.25rem;
  border-radius: 999px;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  border: 1px solid var(--border-color);
}
.demo-section .demo-tab {
  appearance: none;
  -webkit-appearance: none;
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  border: 1.5px solid var(--border-color);
  background: var(--background-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-weight: 500;
  font-size: 0.9rem;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
.demo-section .demo-tab:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: rgba(37, 99, 235, 0.06);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.12);
  transform: translateY(-1px);
}
.demo-section .demo-tab.active {
  background: linear-gradient(135deg, var(--primary-color) 0%, #1d4ed8 100%);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
  font-weight: 600;
}
.demo-main-video-wrap {
  max-width: 720px;
  margin: 0 auto;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
  background: #0f0f0f;
  border: 1px solid var(--border-color);
  position: relative;
}
.demo-main-video-wrap video {
  width: 100%;
  max-width: 100%;
  display: block;
  transition: opacity 0.18s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}
.demo-main-video-wrap.is-switching video {
  opacity: 0;
  transform: scale(0.97);
}
.demo-main-video-wrap .demo-video-label {
  transition: opacity 0.18s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}
.demo-main-video-wrap.is-switching .demo-video-label {
  opacity: 0;
  transform: translateY(6px);
}
/* Loading shimmer while new video source loads */
.demo-main-video-wrap.is-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    110deg,
    transparent 30%,
    rgba(255, 255, 255, 0.06) 50%,
    transparent 70%
  );
  background-size: 200% 100%;
  animation: videoSwitchShimmer 1.2s ease-in-out infinite;
  pointer-events: none;
}
@keyframes videoSwitchShimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
.demo-main-video-wrap .demo-video-label {
  padding: 0.75rem 1.25rem;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid var(--border-color);
}
.demo-multi-video-wrap {
  width: min(1200px, calc(100vw - 2rem));
  max-width: none;
  margin: 1rem auto 0;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
  background: var(--background-primary);
  border: 1px solid var(--border-color);
}
.demo-video-grid-three {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
  padding: 0.9rem;
}
.demo-video-grid-three .demo-video-cell {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}
.demo-foam-grid .demo-video-cell {
  position: relative;
  background: var(--background-primary);
  aspect-ratio: 16 / 9;
}

.demo-foam-grid .demo-video-cell video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.demo-foam-grid .angle-chip {
  position: absolute;
  top: 0.45rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  background: rgba(15, 23, 42, 0.72);
  color: #f8fafc;
  border: 1px solid rgba(226, 232, 240, 0.35);
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-align: center;
  white-space: nowrap;
}

.demo-multi-video-wrap .demo-video-label {
  padding: 0.75rem 1.25rem;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid var(--border-color);
}
.demo-side-by-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 768px) {
  .demo-section .demo-tabs {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.35rem;
    border-radius: 14px;
  }
  .demo-section .demo-tab {
    font-size: 0.7rem;
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    line-height: 1.2;
  }
  .demo-video-grid-three {
    grid-template-columns: 1fr;
  }
  .demo-multi-video-wrap {
    width: 100%;
  }
  .demo-side-by-side {
    grid-template-columns: 1fr;
  }
}
.demo-side-by-side .demo-video-cell {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.06);
  background: #0f0f0f;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.demo-side-by-side .demo-video-cell:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.14);
}
.demo-side-by-side .demo-video-cell video {
  width: 100%;
  max-width: 100%;
  display: block;
  transition: opacity 0.18s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}
.demo-side-by-side.is-switching .demo-video-cell video {
  opacity: 0;
  transform: scale(0.97);
}
.demo-side-by-side .demo-video-cell .demo-video-label {
  transition: opacity 0.18s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}
.demo-side-by-side.is-switching .demo-video-cell .demo-video-label {
  opacity: 0;
  transform: translateY(6px);
}
.demo-side-by-side .demo-video-label {
  padding: 0.65rem 1rem;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid var(--border-color);
  letter-spacing: 0.02em;
}
.demo-section .demo-side-by-side + p.is-size-7 {
  margin-top: 1rem !important;
}

.vision-only-pairs {
  margin-top: 1.2rem;
}

.vision-only-title {
  margin: 0 0 0.8rem;
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.vision-only-row {
  margin-top: 0.6rem;
}

.vision-only-caption {
  margin-top: 0.65rem !important;
  color: var(--text-secondary);
}

.mujoco-session-container {
  max-width: 1600px !important;
  width: 95% !important;
}

.mujoco-session-section .mujoco-session-frame-wrap {
  margin: 1.25rem auto 0;
  width: 100%;
  max-width: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
  background: #0f172a;
  position: relative;
}

.mujoco-session-section .mujoco-session-frame-wrap iframe {
  width: 100%;
  height: min(82vh, 860px);
  min-height: 560px;
  border: 0;
  display: none;
  background: #0f172a;
}

.mujoco-session-section .mujoco-session-frame-wrap.is-started iframe {
  display: block;
}

.mujoco-session-section .mujoco-session-launch {
  min-height: min(82vh, 860px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 0.9rem;
  padding: 1.2rem;
  text-align: center;
  color: #e2e8f0;
  background:
    radial-gradient(circle at center, rgba(30, 64, 175, 0.32) 0%, rgba(15, 23, 42, 0.88) 55%),
    #0f172a;
}

.mujoco-session-section .mujoco-session-launch p {
  margin: 0;
  max-width: 38rem;
}

.mujoco-session-section .mujoco-session-frame-wrap.is-started .mujoco-session-launch {
  display: none;
}

.mujoco-session-close-btn {
  position: absolute;
  bottom: 12px;
  left: 12px;
  z-index: 10;
  padding: 0.35rem 1rem;
  border: none;
  border-radius: 6px;
  background: rgba(15, 23, 42, 0.85);
  color: #e2e8f0;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.mujoco-session-close-btn:hover {
  background: rgba(30, 41, 59, 0.95);
}

.mujoco-session-section .mujoco-session-note {
  margin-top: 0.8rem;
  color: var(--text-secondary);
}

.mujoco-session-section .mujoco-session-note a {
  color: var(--primary-color);
  font-weight: 600;
}

.mujoco-session-section .mujoco-session-disabled-note {
  margin-top: 0.8rem;
  color: #b91c1c;
  font-weight: 600;
}

.mujoco-session-section.is-phone-disabled .mujoco-session-frame-wrap,
.mujoco-session-section.is-phone-disabled .mujoco-session-note {
  display: none;
}

@media (max-width: 767px) {
  .mujoco-session-section .mujoco-session-disabled-note {
    display: block;
  }
}

@media (max-width: 768px) {
  .mujoco-session-section .mujoco-session-frame-wrap iframe {
    height: 68vh;
    min-height: 420px;
  }

  .mujoco-session-section .mujoco-session-launch {
    min-height: 68vh;
  }
}

/* Quantitative results section */
.stats-section .stats-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 980px;
  margin: 0 auto;
}

.stats-section .stats-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  box-shadow: var(--shadow-md);
  padding: 1rem 1rem 0.9rem;
}

.stats-section .stats-card h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stats-section .stats-card p {
  margin: 0.35rem 0 0.9rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.stats-section .stat-row {
  margin-bottom: 0.8rem;
}

.stats-section .stat-label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.38rem;
}

.stats-section .stat-bars {
  display: grid;
  gap: 0.3rem;
}

.stats-section .bar-track {
  height: 24px;
  background: #eef2f7;
  border: 1px solid #dbe3ee;
  border-radius: 999px;
  overflow: hidden;
}

.stats-section .bar-fill {
  height: 100%;
  min-width: 2.4rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.45rem;
  font-size: 0.76rem;
  font-weight: 600;
  color: #ffffff;
  border-radius: 999px;
}

.stats-section .bar-fill.ours {
  background: linear-gradient(90deg, #2563eb 0%, #1d4ed8 100%);
}

.stats-section .bar-fill.vision {
  background: linear-gradient(90deg, #0ea5e9 0%, #0284c7 100%);
}

.stats-section .bar-fill.ablation {
  background: linear-gradient(90deg, #8b5cf6 0%, #7c3aed 100%);
}

.stats-section .bar-fill.baseline {
  background: linear-gradient(90deg, #64748b 0%, #475569 100%);
}

.stats-section .stat-note {
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.stats-section .scale-compare-chart {
  display: grid;
  gap: 0.55rem;
}

.stats-section .scale-compare-row {
  display: grid;
  grid-template-columns: 84px 1fr 1fr 1fr;
  gap: 0.5rem;
  align-items: center;
}

.stats-section .scale-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: right;
}

.stats-section .stat-line-wrap {
  margin-top: 0.35rem;
  border: 1px solid #dbe3ee;
  border-radius: 12px;
  background: #f8fafc;
  padding: 0.45rem 0.35rem 0.2rem;
}

.stats-section .stat-line-chart {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.stats-section .axis-line {
  stroke: #94a3b8;
  stroke-width: 1.5;
}

.stats-section .line-main {
  fill: none;
  stroke: #2563eb;
  stroke-width: 3;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.stats-section .line-point {
  fill: #2563eb;
  stroke: #ffffff;
  stroke-width: 1.5;
}

.stats-section .bar-ours { fill: #2563eb; }
.stats-section .bar-vision { fill: #0ea5e9; }
.stats-section .bar-hdmi { fill: #64748b; }
.stats-section .bar-resmimic { fill: #8b5cf6; }
.stats-section .bar-physhsi { fill: #10b981; }
.stats-section .bar-visualmimic { fill: #f59e0b; }

.stats-section .bar-ours {
  stroke: #ffffff;
  stroke-width: 1.3;
}

.stats-section .bar-vision {
  stroke: #ffffff;
  stroke-width: 1.2;
}

.stats-section .bar-hdmi,
.stats-section .bar-resmimic,
.stats-section .bar-physhsi,
.stats-section .bar-visualmimic {
  opacity: 0.58;
}

.stats-section .axis-text {
  fill: #64748b;
  font-size: 12px;
  font-weight: 600;
  text-anchor: middle;
}

.stats-section .value-text {
  fill: #1e293b;
  font-size: 11px;
  font-weight: 700;
}

.stats-section .bar-value-text {
  fill: #0f172a;
  font-size: 8px;
  font-weight: 700;
  text-anchor: middle;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.stats-card.is-visible .bar-value-text {
  opacity: 1;
  transition-delay: 0.8s;
}

/* Line chart draw animation */
.stats-section .line-main {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.stats-card.is-visible .line-main {
  stroke-dashoffset: 0;
}

.stats-section .line-point {
  transform: scale(0);
  transform-origin: center;
  transform-box: fill-box;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.stats-card.is-visible .line-point:nth-of-type(1) { transform: scale(1); transition-delay: 0.25s; }
.stats-card.is-visible .line-point:nth-of-type(2) { transform: scale(1); transition-delay: 0.5s; }
.stats-card.is-visible .line-point:nth-of-type(3) { transform: scale(1); transition-delay: 0.7s; }
.stats-card.is-visible .line-point:nth-of-type(4) { transform: scale(1); transition-delay: 0.9s; }
.stats-card.is-visible .line-point:nth-of-type(5) { transform: scale(1); transition-delay: 1.05s; }

.stats-section .value-text {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.stats-card.is-visible .value-text {
  opacity: 1;
  transition-delay: 1s;
}

.stats-section .stats-legend {
  margin-top: 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.9rem;
  justify-content: center;
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.stats-section .stats-legend span:nth-child(-n+2) {
  font-weight: 700;
  color: var(--text-primary);
}

.stats-section .legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
  margin-right: 0.35rem;
}

.stats-section .dot-ours { background: #2563eb; }
.stats-section .dot-vision { background: #0ea5e9; }
.stats-section .dot-hdmi { background: #64748b; }
.stats-section .dot-resmimic { background: #8b5cf6; }
.stats-section .dot-physhsi { background: #10b981; }
.stats-section .dot-visualmimic { background: #f59e0b; }

/* "Coming soon" hero buttons — subdued instead of disabled-grey */
.button.is-dark.is-coming-soon {
  background: rgba(148, 163, 184, 0.35) !important;
  color: rgba(248, 250, 252, 0.6) !important;
  cursor: default;
  box-shadow: none;
  transform: none !important;
  pointer-events: none;
}

/* Section heading anchor links */
.heading-anchor {
  opacity: 0;
  color: var(--text-light);
  text-decoration: none;
  font-weight: 400;
  font-size: 0.75em;
  margin-left: 0.25em;
  transition: opacity 0.15s ease;
  vertical-align: middle;
}

.section-heading:hover .heading-anchor,
.heading-anchor:focus {
  opacity: 0.5;
}

.heading-anchor:hover {
  opacity: 1;
  color: var(--primary-color);
}

/* MuJoCo loading overlay */
.mujoco-loading-overlay[hidden] {
  display: none !important;
}

.mujoco-loading-overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: radial-gradient(circle at center, rgba(30, 64, 175, 0.25) 0%, rgba(15, 23, 42, 0.92) 55%), #0f172a;
  color: #e2e8f0;
  font-size: 0.95rem;
}

.mujoco-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: mujoco-spin 0.8s linear infinite;
}

@keyframes mujoco-spin {
  to { transform: rotate(360deg); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero-video-grid {
    display: none;
  }

  .grid-cell {
    animation: none;
  }

  .mujoco-loading-spinner {
    animation: none;
    border-top-color: transparent;
    border-right-color: var(--primary-color);
  }
}

/* ══════════════════════════════════════════════════════════
   FANCY VISUAL ENHANCEMENTS
   ══════════════════════════════════════════════════════════ */

/* ── 1. Animated Distance Field Rings in Hero ── */
.hero-df-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70vmin;
  height: 70vmin;
  transform: translate(-50%, -50%);
  z-index: 1;
  pointer-events: none;
  opacity: 0.5;
}

.df-ring {
  fill: none;
  stroke: rgba(96, 165, 250, 0.35);
  stroke-width: 1.2;
}

.df-ring--1 {
  animation: dfRingPulse 6s ease-in-out infinite;
}

.df-ring--2 {
  stroke: rgba(96, 165, 250, 0.28);
  animation: dfRingPulse 6s ease-in-out 1.5s infinite;
}

.df-ring--3 {
  stroke: rgba(139, 92, 246, 0.22);
  animation: dfRingPulse 6s ease-in-out 3s infinite;
}

.df-ring--4 {
  stroke: rgba(139, 92, 246, 0.15);
  animation: dfRingPulse 6s ease-in-out 4.5s infinite;
}

@keyframes dfRingPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.08);
    opacity: 0.5;
  }
}

/* ── 2. Gradient Mesh Blobs ── */
.hero.is-light.contributions-section::before,
.hero.is-light.contributions-section::after {
  width: 380px;
  height: 380px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

.hero.is-light.contributions-section::before {
  top: 10%;
  left: -5%;
  background: #3b82f6;
  animation: blobDrift1 22s ease-in-out infinite;
}

.hero.is-light.contributions-section::after {
  bottom: 10%;
  right: -5%;
  background: #8b5cf6;
  animation: blobDrift2 25s ease-in-out infinite;
}

.hero.is-light.stats-section::before,
.hero.is-light.stats-section::after {
  width: 350px;
  height: 350px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.13;
  pointer-events: none;
  z-index: 0;
  will-change: transform;
}

.hero.is-light.stats-section::before {
  top: 15%;
  right: -3%;
  background: #3b82f6;
  animation: blobDrift2 20s ease-in-out infinite;
}

.hero.is-light.stats-section::after {
  bottom: 5%;
  left: -3%;
  background: #ec4899;
  animation: blobDrift1 24s ease-in-out infinite;
}

@keyframes blobDrift1 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(30px, -20px); }
  66% { transform: translate(-20px, 15px); }
}

@keyframes blobDrift2 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-25px, 20px); }
  66% { transform: translate(20px, -25px); }
}

/* ── 3. Animated Gradient Text on LessMimic Title ── */
.hero-main .publication-title .title-main {
  background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6, #60a5fa);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientTextShift 6s ease-in-out infinite;
}

@keyframes gradientTextShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ── 4. Contribution Cards 3D Tilt ── */
.contribution-card {
  transform-style: preserve-3d;
  transition: transform 0.15s ease, box-shadow 0.25s ease, border-color 0.2s ease, background 0.2s ease;
}

.contribution-card .card-tilt-highlight {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  background: radial-gradient(300px circle at var(--tilt-x, 50%) var(--tilt-y, 50%), rgba(37, 99, 235, 0.1), transparent 60%);
}

.contribution-card:hover .card-tilt-highlight {
  opacity: 1;
}

/* ── 5. Animated Gradient Border on Stats Cards ── */
@property --border-angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

.stats-section .stats-card {
  position: relative;
  background: #ffffff;
  z-index: 1;
}

.stats-section .stats-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 16px;
  background: conic-gradient(from var(--border-angle), #2563eb, #0ea5e9, #8b5cf6, #f093fb, #2563eb);
  z-index: -1;
  animation: rotateBorder 4s linear infinite;
}

.stats-section .stats-card::after {
  content: '';
  position: absolute;
  inset: 1px;
  border-radius: 13px;
  background: #ffffff;
  z-index: -1;
}

@keyframes rotateBorder {
  to { --border-angle: 360deg; }
}

/* ── 6. Contour Line SVG Section Dividers ── */
.hero.is-light::before {
  top: 0;
  height: 40px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40'%3E%3Cpath d='M0 32 Q150 20 300 28 T600 24 T900 30 T1200 22' fill='none' stroke='%23cbd5e1' stroke-width='0.8' opacity='0.5'/%3E%3Cpath d='M0 20 Q200 10 400 18 T800 14 T1200 20' fill='none' stroke='%23cbd5e1' stroke-width='0.6' opacity='0.35'/%3E%3Cpath d='M0 8 Q180 16 360 10 T720 12 T1200 6' fill='none' stroke='%23cbd5e1' stroke-width='0.5' opacity='0.2'/%3E%3C/svg%3E") center top / 100% 40px no-repeat;
}

.hero.is-light::after {
  bottom: 0;
  height: 40px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 40'%3E%3Cpath d='M0 8 Q150 20 300 12 T600 16 T900 10 T1200 18' fill='none' stroke='%23cbd5e1' stroke-width='0.8' opacity='0.5'/%3E%3Cpath d='M0 20 Q200 30 400 22 T800 26 T1200 20' fill='none' stroke='%23cbd5e1' stroke-width='0.6' opacity='0.35'/%3E%3Cpath d='M0 32 Q180 24 360 30 T720 28 T1200 34' fill='none' stroke='%23cbd5e1' stroke-width='0.5' opacity='0.2'/%3E%3C/svg%3E") center bottom / 100% 40px no-repeat;
}

/* ── 7. Mouse-Following Gradient Spotlight ── */
@media (hover: hover) {
  .hero-main {
    --mouse-x: 50%;
    --mouse-y: 50%;
  }

  .hero-main .hero-main-overlay {
    background:
      radial-gradient(600px circle at var(--mouse-x) var(--mouse-y), rgba(37, 99, 235, 0.12), transparent 60%),
      linear-gradient(
        to bottom,
        rgba(2, 6, 23, 0.6) 0%,
        rgba(2, 6, 23, 0.52) 45%,
        rgba(2, 6, 23, 0.72) 100%
      );
  }
}

/* ── 8. Dot Grid Background Pattern ── */
.hero.is-light {
  background-image: radial-gradient(circle, #cbd5e1 1px, transparent 1px);
  background-size: 24px 24px;
  background-color: var(--background-secondary);
}

/* ── 9. Button Shimmer Effect ── */
.hero-main .button.is-dark::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 25%, rgba(255, 255, 255, 0.35) 50%, transparent 75%);
  transform: translateX(-100%);
  border-radius: inherit;
  pointer-events: none;
}

.hero-main .button.is-dark:hover::after {
  transform: translateX(100%);
  transition: transform 0.6s ease;
}

.hero-main .button.is-dark.is-coming-soon::after {
  display: none;
}

/* ── 10. Video Container Glow Pulse ── */
@keyframes videoGlow {
  0%, 100% {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08), 0 0 20px rgba(37, 99, 235, 0.08);
  }
  50% {
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08), 0 0 35px rgba(37, 99, 235, 0.18);
  }
}

.demo-main-video-wrap.is-visible {
  animation: videoGlow 4s ease-in-out infinite;
}


/* ── 11. DF Contour Canvas (Contributions) ── */
.df-contour-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ── 12. Cursor Trail Canvas ── */
.cursor-trail-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 5;
}

/* ══════════════════════════════════════════════════════════
   LARGE SCREEN / 4K SCALING
   clamp(baseline, vw-fraction, cap) automatically adapts
   every container width to the viewport — no manual
   breakpoints needed.
   ══════════════════════════════════════════════════════════ */
.container.is-max-desktop {
  max-width: clamp(960px, 60vw, 2000px) !important;
}

.contributions-section .contributions-grid {
  max-width: clamp(56rem, 60vw, 100rem);
}

.how-section .how-layout {
  max-width: clamp(1000px, 55vw, 1800px);
}

.demo-main-video-wrap {
  max-width: clamp(720px, 38vw, 1200px);
}

.demo-side-by-side {
  max-width: clamp(900px, 48vw, 1600px);
}

.stats-section .stats-grid {
  max-width: clamp(980px, 52vw, 1600px);
}

.demo-section .demo-desc {
  max-width: clamp(42rem, 35vw, 60rem);
}

.mujoco-session-container {
  max-width: clamp(1600px, 85vw, 3200px) !important;
}

/* Print styles */
@media print {
  .more-works-container {
    display: none;
  }

  .reveal, .reveal--left, .reveal--right, .reveal--scale, .reveal--fade, .hero-stagger {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
  }

  .button {
    background: transparent !important;
    color: var(--text-primary) !important;
    box-shadow: none !important;
  }
}