/* Modern CSS Variables for consistent theming */
/* HELIOS Theme: Warm sun-inspired colors representing illumination and clarity */
:root {
  --primary-color: #d97706;
  --primary-hover: #b45309;
  --secondary-color: #64748b;
  --accent-color: #f59e0b;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --background-primary: #ffffff;
  --background-secondary: #fffbeb;
  --background-accent: #fef3c7;
  --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, #f59e0b 0%, #d97706 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ef4444 50%, #8b5cf6 100%);
  --gradient-subtle: linear-gradient(135deg, #fef3c7 0%, #fde68a 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;
}

body {
  font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  font-size: 16px;
  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);
}

.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;
}

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


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

.hero.is-light {
  background: var(--background-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

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

.teaser .hero-body {
  padding-top: 2rem;
  padding-bottom: 4rem;
}

.teaser {
  font-family: 'Inter', sans-serif;
}


/* 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-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;
}

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

.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%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

/* 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;
}

.copy-bibtex-btn.copied .copy-text::after {
  content: "ied!";
}

/* Scroll to Top Button */
.scroll-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  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;
}

.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-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;
}


/* Mobile Responsive Improvements */
@media screen and (max-width: 768px) {
  .hero-body {
    padding: 2rem 1rem;
  }
  
  .publication-header .hero-body {
    padding: 3rem 1rem 2rem;
  }
  
  .publication-title {
    font-size: 2.5rem !important;
    line-height: 1.2 !important;
    margin-bottom: 1.5rem !important;
  }
  
  .publication-authors {
    font-size: 1rem !important;
  }
  
  .button {
    margin: 0.25rem !important;
    font-size: 0.875rem !important;
    padding: 0.75rem 1rem !important;
  }
  
  .more-works-container {
    bottom: 2rem;
    right: 1rem;
    top: auto;
  }
  
  .more-works-btn {
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
  }
  
  .more-works-dropdown {
    width: calc(100vw - 2rem);
    right: -1rem;
    bottom: calc(100% + 0.5rem);
    top: auto;
  }
  
  .results-carousel .item {
    margin: 0.5rem;
    padding: 1rem;
  }
  
  .teaser .hero-body {
    padding: 1rem;
  }
  
  .content.has-text-justified {
    font-size: 1rem;
  }
}

@media screen and (max-width: 480px) {
  .publication-title {
    font-size: 2rem !important;
  }
  
  .hero-body {
    padding: 1.5rem 0.75rem;
  }
  
  .more-works-container {
    position: fixed;
    bottom: 2rem;
    right: 1rem;
    z-index: 1000;
  }
  
  .more-works-btn {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
  }
  
  .more-works-dropdown {
    position: absolute;
    bottom: calc(100% + 0.5rem);
    right: 0;
    width: calc(100vw - 2rem);
    max-width: 90vw;
  }
  
  .link-block {
    display: block;
    margin-bottom: 0.5rem;
  }
  
  .button {
    width: 100%;
    justify-content: center;
  }
}

/* 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;
  }
}

/* Animation for page load */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero, .section {
  animation: fadeInUp 0.6s ease-out;
}

/* Improved focus states for accessibility */
.button:focus,
.related-works-btn:focus,
a:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}


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

  .hero, .section {
    animation: none;
  }

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


/* ===== HELIOS Project Page Custom Styles ===== */

/* HELIOS Logo Style */
.helios-logo {
  background: linear-gradient(135deg, #f59e0b 0%, #ef4444 50%, #8b5cf6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 900;
}

/* Key Results Highlight Section */
.results-highlight {
  padding: 1rem 0;
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

@media screen and (max-width: 768px) {
  .highlight-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

.highlight-card {
  background: linear-gradient(135deg, var(--background-primary) 0%, var(--background-accent) 100%);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.highlight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #f59e0b, #ef4444, #8b5cf6);
}

.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.highlight-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-value {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.highlight-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 0.5rem;
}

.highlight-desc {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* System Overview Container */
.system-overview-container {
  background: var(--background-primary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.system-overview-img {
  width: 100%;
  border-radius: var(--border-radius);
}

.figure-caption {
  margin-top: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Motivation Section */
.motivation-container {
  background: var(--background-primary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  margin: 2rem 0;
}

.motivation-img {
  width: 100%;
  border-radius: var(--border-radius);
}

.limitation-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

@media screen and (max-width: 768px) {
  .limitation-cards {
    grid-template-columns: 1fr;
  }
}

.limitation-card {
  background: var(--background-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.limitation-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #ef4444;
}

.limitation-icon {
  font-size: 2rem;
  color: #ef4444;
  margin-bottom: 1rem;
}

.limitation-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.limitation-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Method Stages */
.method-intro {
  font-size: 1.15rem;
  margin-bottom: 2rem;
}

.method-stage {
  background: var(--background-primary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.stage-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--border-color);
}

.stage-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: white;
  font-size: 1.5rem;
  font-weight: 800;
  border-radius: 50%;
  flex-shrink: 0;
}

.stage-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

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

.stage-content ul {
  margin-top: 1rem;
  padding-left: 1.5rem;
}

.stage-content li {
  margin-bottom: 0.75rem;
}

.method-img {
  width: 100%;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
}

/* Stage Visual */
.stage-visual {
  background: var(--background-accent);
  border-radius: var(--border-radius);
  padding: 2rem;
  text-align: center;
}

/* Bipartite Graph Visualization - Dynamic SVG-based */
.bipartite-graph-container {
  position: relative;
  width: 100%;
  min-height: 240px;
  background: var(--background-accent);
  border-radius: var(--border-radius);
  overflow: visible;
}

.bipartite-edges {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: visible;
}

.bipartite-edges line {
  stroke: #f59e0b;
  stroke-width: 2.5;
  stroke-linecap: round;
  opacity: 0.8;
  transition: opacity 0.3s ease, stroke-width 0.3s ease;
}

.bipartite-graph-container:hover .bipartite-edges line {
  opacity: 1;
  stroke-width: 3;
}

.bipartite-nodes {
  position: relative;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: stretch;
  z-index: 2;
  padding: 1.5rem 2rem;
  width: 100%;
  box-sizing: border-box;
}

.node-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.node-column.left-nodes {
  align-items: flex-start;
  padding-left: 1rem;
}

.node-column.right-nodes {
  align-items: flex-end;
  padding-right: 1rem;
}

.column-label {
  font-size: 0.75rem;
  color: var(--text-light);
  font-weight: 600;
  text-align: center;
  margin-top: 0.75rem;
  white-space: nowrap;
}

.graph-node {
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  flex-shrink: 0;
  position: relative;
  z-index: 3;
  box-shadow: var(--shadow-sm);
}

.graph-node:hover {
  transform: scale(1.15);
  box-shadow: var(--shadow-md);
}

.table-node {
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  color: #1e40af;
  border: 3px solid #3b82f6;
}

.passage-node {
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  color: #166534;
  border: 3px solid #22c55e;
}

.visual-caption {
  margin-top: 1rem;
  color: var(--text-light);
  font-size: 0.875rem;
  font-style: italic;
}

/* Sub-stages */
.sub-stages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media screen and (max-width: 768px) {
  .sub-stages {
    grid-template-columns: 1fr;
  }
}

.sub-stage {
  background: var(--background-accent);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  border-left: 4px solid var(--primary-color);
}

.sub-stage h5 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sub-stage h5 i {
  color: var(--primary-color);
}

.sub-stage p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Results Tables */
.results-table-container {
  margin: 3rem 0;
}

.table-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--background-primary);
}

.results-table th,
.results-table td {
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.results-table th {
  background: var(--background-accent);
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.results-table td {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.results-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--text-primary);
}

.results-table tbody tr:hover {
  background: var(--background-secondary);
}

.results-table .highlight-row {
  background: linear-gradient(90deg, rgba(245, 158, 11, 0.1), rgba(139, 92, 246, 0.1));
}

.results-table .highlight-row td {
  color: var(--text-primary);
  font-weight: 600;
}

.results-table.compact th,
.results-table.compact td {
  padding: 0.75rem;
}

.table-note {
  margin-top: 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-style: italic;
}

/* Charts */
.charts-container {
  margin: 3rem 0;
}

.chart-card {
  background: var(--background-primary);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.chart-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.chart-card img {
  width: 100%;
  border-radius: var(--border-radius);
}

.chart-caption {
  text-align: center;
  margin-top: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-note {
  margin-top: 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Ablation Study */
.ablation-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.ablation-item {
  background: var(--background-primary);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  text-align: center;
}

.ablation-header {
  margin-bottom: 1rem;
}

.ablation-component {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.ablation-impact {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  justify-content: center;
}

.impact-metric {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius);
  background: var(--background-accent);
}

.impact-metric.negative {
  border-left: 3px solid #ef4444;
}

.impact-metric .metric-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ef4444;
}

.impact-metric .metric-label {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

.ablation-insight {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin: 0;
  font-style: italic;
}

/* Granularity Analysis */
.granularity-analysis {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

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

@media screen and (max-width: 768px) {
  .granularity-cards {
    grid-template-columns: 1fr;
  }
}

.granularity-card {
  background: var(--background-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.granularity-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.granularity-card.best {
  border-color: #22c55e;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.05), rgba(34, 197, 94, 0.1));
}

.granularity-card.best .granularity-score {
  color: #16a34a;
}

.granularity-icon {
  font-size: 2rem;
  color: var(--text-light);
  margin-bottom: 0.75rem;
}

.granularity-card.best .granularity-icon {
  color: #22c55e;
}

.granularity-card h5 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.granularity-score {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.granularity-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin: 0;
}

/* Qualitative Analysis */
.qualitative-container {
  background: var(--background-primary);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.qualitative-img {
  width: 100%;
  border-radius: var(--border-radius);
}

/* Interactive Tooltips */
.tooltip-trigger {
  position: relative;
  cursor: help;
  border-bottom: 1px dotted var(--text-light);
}

.tooltip-trigger:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  white-space: nowrap;
  z-index: 100;
  box-shadow: var(--shadow-lg);
}

/* Animated counters */
@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.highlight-value {
  animation: countUp 0.6s ease-out forwards;
}

/* Responsive adjustments for HELIOS specific elements */
@media screen and (max-width: 480px) {
  .highlight-card {
    padding: 1.5rem;
  }

  .highlight-value {
    font-size: 2rem;
  }

  .stage-header {
    flex-direction: column;
    text-align: center;
  }

  .stage-title {
    font-size: 1.25rem;
  }

  .ablation-impact {
    justify-content: center;
  }
}