/* CSS Reset and Typography Foundation */

/* Modern CSS Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

#root,
#__next {
  isolation: isolate;
}

/* Typography Foundation */
:root {
  /* Font Families */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Colors */
  --color-primary: #2563eb;
  --color-secondary: #64748b;
  --color-accent: #0ea5e9;
  --color-text: #1e293b;
  --color-text-light: #64748b;
  --color-background: #ffffff;
  --color-surface: #f8fafc;
  --color-border: #e2e8f0;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Layout */
  --max-width: 1200px;
  --container-padding: var(--space-4);
  --grid-gap: var(--space-6);
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  
  /* Breakpoints */
  --breakpoint-sm: 640px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 1024px;
  --breakpoint-xl: 1280px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --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);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* Base Typography */
body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

h1 {
  font-size: var(--text-4xl);
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-base);
}

p {
  margin-bottom: var(--space-4);
}

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

a:hover {
  color: var(--color-accent);
}

/* Utility Classes */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.text-center {
  text-align: center;
}

.text-light {
  color: var(--color-text-light);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
/* ======
====================================================================
   RESPONSIVE LAYOUT FOUNDATION
   ========================================================================== */

/* CSS Grid Layout System */
.grid {
  display: grid;
  gap: var(--grid-gap);
}

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

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-cols-auto {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-cols-auto-sm {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-cols-auto-lg {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Grid column spanning */
.col-span-1 {
  grid-column: span 1 / span 1;
}

.col-span-2 {
  grid-column: span 2 / span 2;
}

.col-span-3 {
  grid-column: span 3 / span 3;
}

.col-span-4 {
  grid-column: span 4 / span 4;
}

.col-span-full {
  grid-column: 1 / -1;
}

/* Flexbox Layout System */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-col {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

/* Flex alignment */
.justify-start {
  justify-content: flex-start;
}

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

.justify-end {
  justify-content: flex-end;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

.justify-evenly {
  justify-content: space-evenly;
}

.items-start {
  align-items: flex-start;
}

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

.items-end {
  align-items: flex-end;
}

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

.items-baseline {
  align-items: baseline;
}

/* Flex grow/shrink */
.flex-1 {
  flex: 1 1 0%;
}

.flex-auto {
  flex: 1 1 auto;
}

.flex-initial {
  flex: 0 1 auto;
}

.flex-none {
  flex: none;
}

/* Gap utilities */
.gap-1 {
  gap: var(--space-1);
}

.gap-2 {
  gap: var(--space-2);
}

.gap-3 {
  gap: var(--space-3);
}

.gap-4 {
  gap: var(--space-4);
}

.gap-6 {
  gap: var(--space-6);
}

.gap-8 {
  gap: var(--space-8);
}

/* Responsive Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Section spacing */
.section {
  padding: var(--space-16) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

/* ==========================================================================
   MOBILE-FIRST MEDIA QUERIES
   ========================================================================== */

/* Small devices (landscape phones, 640px and up) */
@media (min-width: 640px) {
  :root {
    --container-padding: var(--space-6);
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4rem;
  }
  
  .container {
    padding: 0 var(--container-padding);
  }
  
  /* Grid responsive classes */
  .sm\:grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .sm\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .sm\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .sm\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  /* Flex responsive classes */
  .sm\:flex-row {
    flex-direction: row;
  }
  
  .sm\:flex-col {
    flex-direction: column;
  }
  
  .sm\:justify-start {
    justify-content: flex-start;
  }
  
  .sm\:justify-center {
    justify-content: center;
  }
  
  .sm\:justify-between {
    justify-content: space-between;
  }
  
  .sm\:items-center {
    align-items: center;
  }
  
  /* Column spanning */
  .sm\:col-span-1 {
    grid-column: span 1 / span 1;
  }
  
  .sm\:col-span-2 {
    grid-column: span 2 / span 2;
  }
  
  .sm\:col-span-3 {
    grid-column: span 3 / span 3;
  }
  
  .sm\:col-span-full {
    grid-column: 1 / -1;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-8);
    --grid-gap: var(--space-8);
  }
  
  .container {
    padding: 0 var(--container-padding);
  }
  
  /* Grid responsive classes */
  .md\:grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .md\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .md\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .md\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  /* Flex responsive classes */
  .md\:flex-row {
    flex-direction: row;
  }
  
  .md\:flex-col {
    flex-direction: column;
  }
  
  .md\:justify-start {
    justify-content: flex-start;
  }
  
  .md\:justify-center {
    justify-content: center;
  }
  
  .md\:justify-between {
    justify-content: space-between;
  }
  
  .md\:items-center {
    align-items: center;
  }
  
  /* Column spanning */
  .md\:col-span-1 {
    grid-column: span 1 / span 1;
  }
  
  .md\:col-span-2 {
    grid-column: span 2 / span 2;
  }
  
  .md\:col-span-3 {
    grid-column: span 3 / span 3;
  }
  
  .md\:col-span-full {
    grid-column: 1 / -1;
  }
  
  /* Section spacing adjustments */
  .section {
    padding: var(--space-20) 0;
  }
  
  .section-lg {
    padding: var(--space-24) 0;
  }
}

/* Large devices (desktops, 1024px and up) */
@media (min-width: 1024px) {
  :root {
    --container-padding: var(--space-10);
  }
  
  .container {
    padding: 0 var(--container-padding);
  }
  
  /* Grid responsive classes */
  .lg\:grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  
  .lg\:grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  
  /* Flex responsive classes */
  .lg\:flex-row {
    flex-direction: row;
  }
  
  .lg\:flex-col {
    flex-direction: column;
  }
  
  .lg\:justify-start {
    justify-content: flex-start;
  }
  
  .lg\:justify-center {
    justify-content: center;
  }
  
  .lg\:justify-between {
    justify-content: space-between;
  }
  
  .lg\:items-center {
    align-items: center;
  }
  
  /* Column spanning */
  .lg\:col-span-1 {
    grid-column: span 1 / span 1;
  }
  
  .lg\:col-span-2 {
    grid-column: span 2 / span 2;
  }
  
  .lg\:col-span-3 {
    grid-column: span 3 / span 3;
  }
  
  .lg\:col-span-4 {
    grid-column: span 4 / span 4;
  }
  
  .lg\:col-span-full {
    grid-column: 1 / -1;
  }
}

/* Extra large devices (large desktops, 1280px and up) */
@media (min-width: 1280px) {
  :root {
    --max-width: 1280px;
  }
  
  /* Grid responsive classes */
  .xl\:grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }
  
  .xl\:grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  
  .xl\:grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  
  .xl\:grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  
  .xl\:grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  
  .xl\:grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  
  /* Flex responsive classes */
  .xl\:flex-row {
    flex-direction: row;
  }
  
  .xl\:flex-col {
    flex-direction: column;
  }
  
  .xl\:justify-start {
    justify-content: flex-start;
  }
  
  .xl\:justify-center {
    justify-content: center;
  }
  
  .xl\:justify-between {
    justify-content: space-between;
  }
  
  .xl\:items-center {
    align-items: center;
  }
  
  /* Column spanning */
  .xl\:col-span-1 {
    grid-column: span 1 / span 1;
  }
  
  .xl\:col-span-2 {
    grid-column: span 2 / span 2;
  }
  
  .xl\:col-span-3 {
    grid-column: span 3 / span 3;
  }
  
  .xl\:col-span-4 {
    grid-column: span 4 / span 4;
  }
  
  .xl\:col-span-full {
    grid-column: 1 / -1;
  }
}

/* ==========================================================================
   RESPONSIVE TYPOGRAPHY
   ========================================================================== */

/* Mobile-first responsive typography scaling */
@media (min-width: 640px) {
  h1 {
    font-size: var(--text-5xl);
  }
  
  h2 {
    font-size: var(--text-4xl);
  }
  
  h3 {
    font-size: var(--text-3xl);
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: var(--text-6xl);
  }
  
  h2 {
    font-size: var(--text-5xl);
  }
  
  h3 {
    font-size: var(--text-4xl);
  }
}

/* ==========================================================================
   LAYOUT COMPONENTS
   ========================================================================== */

/* Main layout wrapper */
.main-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Content area that grows to fill space */
.main-content {
  flex: 1;
}

/* Two-column layout for content sections */
.content-grid {
  display: grid;
  gap: var(--grid-gap);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .content-grid {
    grid-template-columns: 2fr 1fr;
  }
  
  .content-grid.reverse {
    grid-template-columns: 1fr 2fr;
  }
}

/* Hero layout */
.hero-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-8);
  min-height: 60vh;
  padding: var(--space-8) 0;
}

/* Card layout system */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-lg {
  padding: var(--space-8);
  border-radius: var(--border-radius-lg);
}

/* ==========================================================================
   HERO SECTION COMPONENT
   ========================================================================== */

/* Hero section container */
.hero {
  background: linear-gradient(135deg, var(--color-background) 0%, var(--color-surface) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(14, 165, 233, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

/* Hero content area */
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
  text-align: center;
  width: 100%;
}

/* Hero title styling */
.hero-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text);
  margin: 0;
  letter-spacing: -0.025em;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  /* Fallback for browsers that don't support background-clip */
  color: var(--color-text);
  background-color: transparent;
  text-align: center;
  max-width: 100%;
  display: block;
}

/* Prevent line breaks within title phrases */
.hero-title .nowrap {
  white-space: nowrap;
}

/* Hero image container */
.hero-image-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 600px;
  margin: var(--space-6) 0;
}

.hero-image-container .hero-image {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  object-fit: contain;
  object-position: center;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: var(--text-5xl);
  }
  
  .hero-image-container {
    max-width: 700px;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: var(--text-6xl);
  }
  
  .hero-image-container {
    max-width: 800px;
  }
}

/* Hero subtitle styling */
.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  margin: 0;
  font-weight: 400;
  line-height: 1.4;
}

@media (min-width: 640px) {
  .hero-subtitle {
    font-size: var(--text-xl);
  }
}

/* Authors section */
.hero-authors {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.authors-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  margin: 0;
}

@media (min-width: 768px) {
  .authors-list {
    justify-content: center;
  }
}

.author-name {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  transition: color var(--transition-fast);
}

.author-name:hover {
  color: var(--color-primary);
}

/* Author name styling - separators handled in JavaScript */

.authors-affiliations {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin: 0;
}

@media (min-width: 768px) {
  .authors-affiliations {
    justify-content: center;
  }
}

.affiliation {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  font-style: italic;
  position: relative;
}

/* Affiliation styling - separators handled in JavaScript */

/* Publication information */
.hero-publication {
  margin: var(--space-2) 0;
}

.publication-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  font-size: var(--text-sm);
  color: var(--color-text-light);
}

@media (min-width: 768px) {
  .publication-info {
    justify-content: flex-start;
  }
}

.publication-venue {
  font-weight: 600;
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  letter-spacing: 0.025em;
}

.publication-separator {
  color: var(--color-border);
  font-weight: 300;
}

.publication-date {
  font-weight: 500;
  color: var(--color-text);
}

/* Hero actions (buttons) */
.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-4);
}

@media (min-width: 768px) {
  .hero-actions {
    justify-content: flex-start;
  }
}

/* Button styles */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.025em;
}

.btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-icon {
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: white;
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, #1d4ed8 0%, #0284c7 100%);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--color-background);
  color: var(--color-text);
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn-secondary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}


.hero-placeholder {
  width: 100%;
  height: 100%;
  min-height: 300px;
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.hero-placeholder:hover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.02);
}

.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
  padding: var(--space-8);
}

.placeholder-icon {
  color: var(--color-text-light);
  opacity: 0.6;
  transition: all var(--transition-normal);
}

.hero-placeholder:hover .placeholder-icon {
  color: var(--color-primary);
  opacity: 0.8;
  transform: scale(1.05);
}

.placeholder-text {
  color: var(--color-text-light);
  font-size: var(--text-sm);
  margin: 0;
  font-style: italic;
}

/* Responsive adjustments for hero section */
@media (max-width: 767px) {
  .hero-layout {
    gap: var(--space-8);
    text-align: left;
    padding: var(--space-4) 0;
  }
  
  .hero-content {
    order: 1;
  }
  
  .hero-visual {
    order: 2;
    min-height: 250px;
  }
  
  .hero-placeholder {
    min-height: 250px;
  }
  
  .hero-title {
    font-size: var(--text-3xl);
    line-height: 1.2;
  }
  
  .hero-subtitle {
    font-size: var(--text-base);
  }
  
  .authors-list {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .authors-affiliations {
    flex-direction: column;
    gap: var(--space-1);
  }
  
  .publication-info {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .publication-separator {
    display: none;
  }
}

@media (min-width: 480px) and (max-width: 767px) {
  .hero-title {
    font-size: var(--text-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--text-lg);
  }
  
  .authors-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-3);
  }
  
  .authors-affiliations {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-3);
  }
  
  .publication-info {
    flex-direction: row;
    gap: var(--space-3);
  }
  
  .publication-separator {
    display: inline;
  }
}

@media (min-width: 768px) {
  .hero-layout {
    gap: var(--space-12);
  }
  
  .hero-content {
    padding-right: var(--space-4);
  }
  
  .hero-title {
    font-size: var(--text-5xl);
  }
}

@media (min-width: 1024px) {
  .hero-layout {
    gap: var(--space-16);
  }
  
  .hero-content {
    padding-right: var(--space-8);
  }
  
  .hero-title {
    font-size: var(--text-6xl);
  }
}

@media (min-width: 1280px) {
  .hero-layout {
    gap: var(--space-20);
  }
}

/* ==========================================================================
   ABSTRACT SECTION COMPONENT
   ========================================================================== */

/* Abstract section container */
.abstract {
  background: var(--color-background);
  position: relative;
}

.abstract::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-background) 50%, var(--color-surface) 100%);
  opacity: 0.3;
  pointer-events: none;
}

.abstract .container {
  position: relative;
  z-index: 1;
}

/* Abstract header */
.abstract-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-light);
  margin: 0;
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Abstract layout */
.abstract-layout {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
  align-items: stretch;
}

@media (min-width: 768px) {
  .abstract-layout {
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-10);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .abstract-layout {
    gap: var(--space-12);
  }
}

/* Abstract content area */
.abstract-content {
  display: flex;
  flex-direction: column;
}

.abstract-text-container {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 100%;
}

.abstract-text-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.abstract-text-container:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Abstract text styling */
.abstract-text {
  font-size: var(--text-lg);
  line-height: 1.8;
  color: var(--color-text);
  margin: 0;
  font-weight: 400;
  text-align: justify;
  hyphens: auto;
  word-spacing: 0.02em;
  letter-spacing: 0.01em;
  word-break: break-word;
}

@media (min-width: 640px) {
  .abstract-text {
    font-size: var(--text-lg);
    line-height: 1.8;
  }
}

/* Improve readability with better paragraph spacing */
.abstract-text::first-letter {
  font-size: 1.2em;
  font-weight: 600;
  color: var(--color-primary);
}

/* Abstract sidebar */
.abstract-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Key contributions card */
.key-contributions {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.key-contributions::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.key-contributions:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

/* Contributions header */
.contributions-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-border);
}

.contributions-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.3;
}

.contributions-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  color: white;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.key-contributions:hover .contributions-icon {
  transform: rotate(360deg) scale(1.1);
}

/* Contributions list */
.contributions-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contribution-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-text);
  position: relative;
  padding: var(--space-5);
  border-radius: var(--border-radius);
  background: rgba(37, 99, 235, 0.02);
  border: 1px solid rgba(37, 99, 235, 0.1);
  transition: all var(--transition-fast);
}

.contribution-item:hover {
  background: rgba(37, 99, 235, 0.05);
  border-color: rgba(37, 99, 235, 0.2);
  transform: translateX(4px);
}

.contribution-item::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
  transition: all var(--transition-fast);
}

.contribution-item:hover::before {
  transform: scale(1.3);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Mobile responsive adjustments */
@media (max-width: 767px) {
  .abstract-header {
    margin-bottom: var(--space-8);
    text-align: center;
  }
  
  .section-title {
    font-size: var(--text-3xl);
  }
  
  .section-subtitle {
    font-size: var(--text-base);
  }
  
  .abstract-layout {
    gap: var(--space-6);
  }
  
  .abstract-text-container {
    padding: var(--space-6);
  }
  
  .abstract-text {
    font-size: var(--text-base);
    line-height: 1.6;
    text-align: left;
  }
  
  .key-contributions {
    padding: var(--space-5);
  }
  
  .contributions-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    text-align: left;
  }
  
  .contributions-title {
    font-size: var(--text-lg);
  }
  
  .contributions-icon {
    align-self: center;
  }
  
  .contribution-item {
    padding: var(--space-3);
    font-size: var(--text-sm);
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1023px) {
  .abstract-layout {
    gap: var(--space-8);
  }
  
  .abstract-text {
    font-size: var(--text-base);
    line-height: 1.75;
  }
  
  .abstract-text-container {
    padding: var(--space-8);
  }
  
  .contributions-title {
    font-size: var(--text-lg);
  }
}

/* Large screen optimizations */
@media (min-width: 1024px) {
  .section-title {
    font-size: var(--text-5xl);
  }
  
  .section-subtitle {
    font-size: var(--text-xl);
  }
  
  .abstract-text-container {
    padding: var(--space-10);
  }
  
  .abstract-text {
    font-size: var(--text-xl);
    line-height: 1.8;
  }
  
  .key-contributions {
    padding: var(--space-8);
  }
  
  .contributions-title {
    font-size: var(--text-xl);
  }
  
  .contribution-item {
    font-size: var(--text-base);
    padding: var(--space-4);
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .abstract-text-container,
  .key-contributions,
  .contribution-item,
  .contributions-icon {
    transition: none;
  }
  
  .key-contributions:hover .contributions-icon {
    transform: none;
  }
  
  .abstract-text-container:hover,
  .key-contributions:hover,
  .contribution-item:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .abstract-text-container,
  .key-contributions {
    border-width: 2px;
    border-color: var(--color-text);
  }
  
  .contribution-item {
    border-width: 2px;
    background: var(--color-background);
  }
  
  .contributions-icon {
    background: var(--color-text);
    color: var(--color-background);
  }
}

/* Print styles for abstract section */
@media print {
  .abstract {
    background: white;
    page-break-inside: avoid;
  }
  
  .abstract::before {
    display: none;
  }
  
  .abstract-layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .abstract-text-container,
  .key-contributions {
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  .contributions-icon {
    background: #333;
  }
}

/* ==========================================================================
   FOOTER COMPONENT
   ========================================================================== */

/* Footer section container */
.footer {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
  border-top: 1px solid var(--color-border);
  position: relative;
  margin-top: var(--space-24);
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}

.footer .container {
  position: relative;
  z-index: 1;
}

/* Footer content layout */
.footer-content {
  display: grid;
  gap: var(--space-12);
  grid-template-columns: 1fr;
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-16);
  }
}

@media (min-width: 1024px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-20);
  }
}

/* Footer sections */
.footer-section {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.footer-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

/* Section headers */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-border);
}

.footer-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.3;
}

.footer-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  border-radius: 50%;
  color: white;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.footer-section:hover .footer-icon {
  transform: rotate(360deg) scale(1.1);
}

/* Contact section */
.contact-section .authors-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  text-align: center;
}

.author-contact {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: rgba(37, 99, 235, 0.02);
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.author-contact:hover {
  background: rgba(37, 99, 235, 0.05);
  border-color: rgba(37, 99, 235, 0.2);
  transform: translateX(4px);
}

.contact-name {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.contact-affiliation {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  font-style: italic;
  margin: 0;
}

.contact-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--border-radius);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.contact-link:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.contact-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.contact-placeholder {
  padding: var(--space-6);
  text-align: center;
  color: var(--color-text-light);
  font-style: italic;
  background: rgba(100, 116, 139, 0.05);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius);
}

/* Acknowledgments section */
.acknowledgments-content {
  line-height: 1.7;
}

.acknowledgments-text {
  font-size: var(--text-base);
  color: var(--color-text);
  margin: 0;
  text-align: justify;
  hyphens: auto;
}

/* Related work section */
.related-resources {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.resource-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.resource-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: rgba(37, 99, 235, 0.02);
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: var(--color-text);
  transition: all var(--transition-fast);
  font-size: var(--text-base);
  font-weight: 500;
}

.resource-link:hover {
  background: rgba(37, 99, 235, 0.05);
  border-color: rgba(37, 99, 235, 0.2);
  color: var(--color-primary);
  transform: translateX(4px);
}

.resource-icon {
  flex-shrink: 0;
  color: var(--color-primary);
  transition: all var(--transition-fast);
}

.resource-link:hover .resource-icon {
  transform: scale(1.1);
}

/* Footer bottom */
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
  background: rgba(37, 99, 235, 0.02);
}

.footer-bottom-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.copyright {
  flex: 1;
}

.copyright-text {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--space-4);
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-light);
  text-decoration: none;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.05);
  transform: translateY(-1px);
}

.footer-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Mobile responsive adjustments */
@media (max-width: 767px) {
  .footer {
    margin-top: var(--space-16);
  }
  
  .footer-content {
    gap: var(--space-8);
  }
  
  .footer-section {
    padding: var(--space-6);
  }
  
  .footer-title {
    font-size: var(--text-lg);
  }
  
  .footer-icon {
    width: 36px;
    height: 36px;
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    text-align: left;
  }
  
  .contact-name {
    font-size: var(--text-base);
  }
  
  .contact-links {
    flex-direction: column;
  }
  
  .resource-links {
    gap: var(--space-2);
  }
  
  .resource-link {
    padding: var(--space-3);
    font-size: var(--text-sm);
  }
  
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }
  
  .footer-links {
    justify-content: center;
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1023px) {
  .footer-content {
    gap: var(--space-12);
  }
  
  .footer-section {
    padding: var(--space-7);
  }
}

/* Large screen optimizations */
@media (min-width: 1024px) {
  .footer-title {
    font-size: var(--text-xl);
  }
  
  .footer-section {
    padding: var(--space-10);
  }
  
  .acknowledgments-text {
    font-size: var(--text-lg);
  }
  
  .resource-link {
    font-size: var(--text-base);
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .footer-section,
  .footer-icon,
  .author-contact,
  .contact-link,
  .resource-link,
  .footer-link {
    transition: none;
  }
  
  .footer-section:hover .footer-icon {
    transform: none;
  }
  
  .footer-section:hover,
  .author-contact:hover,
  .contact-link:hover,
  .resource-link:hover,
  .footer-link:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .footer-section,
  .author-contact,
  .contact-link,
  .resource-link,
  .footer-link {
    border-width: 2px;
    border-color: var(--color-text);
  }
  
  .footer-icon {
    background: var(--color-text);
    color: var(--color-background);
  }
  
  .footer-bottom {
    border-top-width: 2px;
    border-color: var(--color-text);
  }
}

/* Print styles for footer */
@media print {
  .footer {
    background: white;
    border-top: 1px solid #ccc;
    page-break-inside: avoid;
    margin-top: var(--space-12);
  }
  
  .footer::before {
    display: none;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-section {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
  
  .footer-icon {
    background: #333;
  }
  
  .footer-bottom {
    background: white;
    border-top: 1px solid #ccc;
  }
  
  .contact-link,
  .resource-link,
  .footer-link {
    color: #333 !important;
    background: white !important;
    border-color: #ccc !important;
  }
}

/* ==========================================================================
   HEADER AND NAVIGATION COMPONENT
   ========================================================================== */

/* Header container */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

/* Navigation container */
.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--container-padding);
  min-height: 70px;
}

/* Navigation brand/title */
.nav-brand {
  flex-shrink: 0;
}

.nav-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.2;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.nav-title:hover {
  color: var(--color-primary);
}

/* Navigation menu */
.nav-menu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: var(--space-6);
}

.nav-menu li {
  margin: 0;
}

.nav-menu a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--text-sm);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
  letter-spacing: 0.025em;
}

.nav-menu a:hover {
  color: var(--color-primary);
  background-color: rgba(37, 99, 235, 0.08);
  transform: translateY(-1px);
}

.nav-menu a:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-menu a.active {
  color: var(--color-primary);
  background-color: rgba(37, 99, 235, 0.12);
  font-weight: 600;
}

.nav-menu a.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 2px;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    width: 0;
    opacity: 0;
  }
  to {
    width: 24px;
    opacity: 1;
  }
}

/* Mobile hamburger toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 48px;
  height: 48px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-toggle:hover {
  background-color: rgba(37, 99, 235, 0.08);
  transform: scale(1.05);
}

.nav-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-toggle:active {
  transform: scale(0.95);
}

/* Hamburger icon */
.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  top: 8px;
}

/* Hamburger animation when menu is open */
.nav-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(45deg);
  background-color: var(--color-primary);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
  top: 0;
  transform: rotate(-45deg);
  background-color: var(--color-primary);
}

/* Desktop navigation */
@media (min-width: 768px) {
  .nav-menu {
    display: flex;
  }
  
  .nav-toggle {
    display: none;
  }
  
  .nav-title {
    font-size: var(--text-xl);
    max-width: 400px;
  }
  
  .nav-menu {
    gap: var(--space-8);
  }
  
  .nav-menu a {
    padding: var(--space-3) var(--space-4);
  }
}

/* Mobile navigation menu */
@media (max-width: 767px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6) var(--container-padding);
    flex-direction: column;
    gap: var(--space-1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-menu li {
    width: 100%;
  }
  
  .nav-menu a {
    padding: var(--space-4) var(--space-4);
    font-size: var(--text-base);
    border-radius: var(--border-radius);
    width: 100%;
    text-align: left;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
  }
  
  .nav-menu a:hover {
    background-color: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateX(4px);
  }
  
  .nav-menu a.active::after {
    display: none;
  }
  
  .nav-menu a.active {
    background-color: rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.3);
    position: relative;
  }
  
  .nav-menu a.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    border-radius: 0 2px 2px 0;
  }
}

/* Body padding to account for fixed header */
body {
  padding-top: 70px;
}

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Section scroll margin to account for fixed header */
section[id] {
  scroll-margin-top: 90px;
}

/* Navigation accessibility improvements */
.nav-menu a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Prevent body scroll when mobile menu is open */
body.nav-open {
  overflow: hidden;
}

/* Mobile menu overlay for better UX */
.nav-overlay {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  z-index: 999;
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 768px) {
  .nav-overlay {
    display: none;
  }
}
/* =
=========================================================================
   RESULTS GALLERY COMPONENT
   ========================================================================== */

/* Results section container */
.results {
  background: linear-gradient(180deg, var(--color-background) 0%, var(--color-surface) 50%, var(--color-background) 100%);
  position: relative;
  overflow: hidden;
}

.results::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(14, 165, 233, 0.03) 0%, transparent 50%),
              radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.results .container {
  position: relative;
  z-index: 1;
}

/* Results header */
.results-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

/* Results gallery grid */
.results-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .results-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
  }
}

@media (min-width: 1024px) {
  .results-gallery {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-12);
  }
  
  /* Center the last two items when there are 5 total */
  .results-gallery .result-item:nth-child(4):nth-last-child(2),
  .results-gallery .result-item:nth-child(5):nth-last-child(1) {
    grid-column: span 1;
  }
  
  .results-gallery .result-item:nth-child(4):nth-last-child(2) {
    grid-column-start: 2;
    transform: translateX(-50%);
  }
  
  .results-gallery .result-item:nth-child(5):nth-last-child(1) {
    grid-column-start: 3;
    transform: translateX(-50%);
  }
}

@media (min-width: 1280px) {
  .results-gallery {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
}

/* Result item styling */
.result-item {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  position: relative;
  cursor: pointer;
}

.result-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-primary);
}

.result-item:focus-within {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Result media container */
.result-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
}

.result-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform var(--transition-slow);
  background: var(--color-surface);
}

.result-item:hover .result-image {
  transform: scale(1.05);
}

/* Lazy loading placeholder */
.result-image.lazy-load {
  background: linear-gradient(90deg, var(--color-surface) 25%, rgba(255,255,255,0.5) 50%, var(--color-surface) 75%);
  background-size: 200% 100%;
  animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.result-image.loaded {
  animation: none;
  background: none;
}

/* Result overlay */
.result-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.3) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.result-item:hover .result-overlay {
  opacity: 1;
}

/* Zoom button */
.result-zoom-btn {
  background: rgba(255, 255, 255, 0.9);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.result-zoom-btn:hover {
  background: white;
  transform: scale(1.1);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.result-zoom-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Result content */
.result-content {
  padding: var(--space-6);
}

.result-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-3) 0;
  line-height: 1.3;
}

.result-description {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   LIGHTBOX MODAL
   ========================================================================== */

/* Lightbox container */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(0px);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
  backdrop-filter: blur(5px);
}

/* Lightbox backdrop */
.lightbox-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  cursor: pointer;
}

/* Lightbox container */
.lightbox-container {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  background: var(--color-background);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.lightbox.active .lightbox-container {
  transform: scale(1);
}

/* Lightbox close button */
.lightbox-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 10;
  background: rgba(0, 0, 0, 0.7);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.lightbox-close:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

.lightbox-close:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Lightbox content */
.lightbox-content {
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

.lightbox-image {
  width: 100%;
  height: auto;
  max-height: 70vh;
  object-fit: contain;
  background: var(--color-surface);
}

.lightbox-info {
  padding: var(--space-6);
  background: var(--color-background);
}

.lightbox-title {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-3) 0;
  line-height: 1.3;
}

.lightbox-description {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.6;
  margin: 0;
}

/* Lightbox navigation */
.lightbox-navigation {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  padding: 0 var(--space-4);
  pointer-events: none;
}

.lightbox-prev,
.lightbox-next {
  background: rgba(0, 0, 0, 0.7);
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
  pointer-events: auto;
}

.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(0, 0, 0, 0.9);
  transform: scale(1.1);
}

.lightbox-prev:focus,
.lightbox-next:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.lightbox-prev:disabled,
.lightbox-next:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ==========================================================================
   RESPONSIVE ADJUSTMENTS FOR RESULTS GALLERY
   ========================================================================== */

/* Mobile optimizations */
@media (max-width: 639px) {
  .results-header {
    margin-bottom: var(--space-12);
  }
  
  .results-gallery {
    gap: var(--space-6);
  }
  
  .result-content {
    padding: var(--space-5);
  }
  
  .result-title {
    font-size: var(--text-lg);
  }
  
  .result-description {
    font-size: var(--text-sm);
  }
  
  .result-zoom-btn {
    width: 40px;
    height: 40px;
  }
  
  /* Lightbox mobile adjustments */
  .lightbox-container {
    max-width: 95vw;
    max-height: 95vh;
    margin: var(--space-4);
  }
  
  .lightbox-image {
    max-height: 60vh;
  }
  
  .lightbox-info {
    padding: var(--space-4);
  }
  
  .lightbox-title {
    font-size: var(--text-xl);
  }
  
  .lightbox-description {
    font-size: var(--text-sm);
  }
  
  .lightbox-close {
    top: var(--space-3);
    right: var(--space-3);
    width: 36px;
    height: 36px;
  }
  
  .lightbox-prev,
  .lightbox-next {
    width: 40px;
    height: 40px;
  }
}

/* Tablet adjustments */
@media (min-width: 640px) and (max-width: 1023px) {
  .results-gallery {
    gap: var(--space-8);
  }
  
  .result-media {
    aspect-ratio: 4 / 3;
  }
}

/* Large screen optimizations */
@media (min-width: 1024px) {
  .results-header {
    margin-bottom: var(--space-20);
  }
  
  .result-content {
    padding: var(--space-8);
  }
  
  .result-title {
    font-size: var(--text-2xl);
  }
  
  .result-description {
    font-size: var(--text-lg);
  }
  
  /* Lightbox large screen adjustments */
  .lightbox-container {
    max-width: 80vw;
    max-height: 85vh;
  }
  
  .lightbox-image {
    max-height: 75vh;
  }
  
  .lightbox-info {
    padding: var(--space-8);
  }
  
  .lightbox-title {
    font-size: var(--text-3xl);
  }
  
  .lightbox-description {
    font-size: var(--text-lg);
  }
}

/* ==========================================================================
   TOUCH DEVICE OPTIMIZATIONS
   ========================================================================== */

/* Touch-friendly interactions */
@media (hover: none) and (pointer: coarse) {
  .result-overlay {
    opacity: 0.7;
  }
  
  .result-zoom-btn {
    width: 56px;
    height: 56px;
  }
  
  .lightbox-close {
    width: 48px;
    height: 48px;
  }
  
  .lightbox-prev,
  .lightbox-next {
    width: 56px;
    height: 56px;
  }
  
  /* Remove hover effects on touch devices */
  .result-item:hover {
    transform: none;
  }
  
  .result-item:hover .result-image {
    transform: none;
  }
}

/* ==========================================================================
   ACCESSIBILITY IMPROVEMENTS
   ========================================================================== */

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .result-item,
  .result-image,
  .result-overlay,
  .result-zoom-btn,
  .lightbox,
  .lightbox-container {
    transition: none;
  }
  
  .result-item:hover {
    transform: none;
  }
  
  .result-item:hover .result-image {
    transform: none;
  }
  
  .loading-shimmer {
    animation: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .result-item {
    border-width: 2px;
    border-color: var(--color-text);
  }
  
  .result-zoom-btn {
    background: var(--color-background);
    border: 2px solid var(--color-text);
  }
  
  .lightbox-backdrop {
    background: rgba(0, 0, 0, 0.95);
  }
  
  .lightbox-close,
  .lightbox-prev,
  .lightbox-next {
    background: var(--color-text);
    color: var(--color-background);
  }
}

/* Focus visible improvements */
.result-zoom-btn:focus-visible,
.lightbox-close:focus-visible,
.lightbox-prev:focus-visible,
.lightbox-next:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .results {
    background: white;
    page-break-inside: avoid;
  }
  
  .results::before {
    display: none;
  }
  
  .results-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }
  
  .result-item {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
  
  .result-overlay,
  .lightbox {
    display: none;
  }
  
  .result-image {
    transform: none;
  }
}/* ====
======================================================================
   METHODOLOGY SECTION COMPONENT
   ========================================================================== */

/* Methodology section container */
.methodology {
  background: linear-gradient(180deg, var(--color-background) 0%, var(--color-surface) 50%, var(--color-background) 100%);
  position: relative;
}

.methodology::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(14, 165, 233, 0.03) 0%, transparent 50%),
              radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.methodology .container {
  position: relative;
  z-index: 1;
}

/* Methodology header */
.methodology-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

/* Methodology overview */
.methodology-overview {
  margin-bottom: var(--space-16);
}

.overview-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.overview-text {
  font-size: var(--text-xl);
  line-height: 1.7;
  color: var(--color-text);
  font-weight: 400;
  margin: 0;
  padding: var(--space-8);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.overview-text::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

/* Methodology sections container */
.methodology-sections {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  margin-bottom: var(--space-16);
}

/* Individual methodology section */
.methodology-section {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  overflow: hidden;
}

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

/* Section header (clickable toggle) */
.section-header {
  position: relative;
}

.section-toggle {
  width: 100%;
  background: none;
  border: none;
  padding: var(--space-6);
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  transition: all var(--transition-fast);
  position: relative;
}

.section-toggle:hover {
  background: rgba(37, 99, 235, 0.02);
}

.section-toggle:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: -2px;
}

.section-toggle[aria-expanded="true"] {
  background: rgba(37, 99, 235, 0.05);
  border-bottom: 1px solid var(--color-border);
}

/* Section title group */
.section-title-group {
  flex: 1;
  min-width: 0;
}

.section-toggle .section-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
  line-height: 1.3;
}

.section-summary {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0;
  line-height: 1.4;
  font-style: italic;
}

/* Section icon (chevron) */
.section-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.section-icon svg {
  transition: transform var(--transition-fast);
  color: var(--color-primary);
}

.section-toggle[aria-expanded="true"] .section-icon {
  background: var(--color-primary);
}

.section-toggle[aria-expanded="true"] .section-icon svg {
  color: white;
  transform: rotate(180deg);
}

.section-toggle:hover .section-icon {
  background: var(--color-primary);
  transform: scale(1.05);
}

.section-toggle:hover .section-icon svg {
  color: white;
}

/* Section content (collapsible) */
.section-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow) ease-out;
}

.section-content[aria-hidden="false"] {
  max-height: 1000px;
  transition: max-height var(--transition-slow) ease-in;
}

/* Content layout */
.content-layout {
  display: grid;
  gap: var(--space-8);
  padding: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .content-layout {
    grid-template-columns: 2fr 1fr;
    gap: var(--space-10);
  }
}

@media (min-width: 1024px) {
  .content-layout {
    padding: var(--space-8);
    gap: var(--space-12);
  }
}

/* Content text area */
.content-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.content-description {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
  text-align: justify;
  hyphens: auto;
}

@media (min-width: 640px) {
  .content-description {
    font-size: var(--text-lg);
  }
}

/* Content details list */
.content-details {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.content-details li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text);
  padding: var(--space-3);
  background: rgba(37, 99, 235, 0.02);
  border-radius: var(--border-radius);
  border-left: 3px solid var(--color-primary);
  transition: all var(--transition-fast);
}

.content-details li:hover {
  background: rgba(37, 99, 235, 0.05);
  transform: translateX(4px);
}

.content-details li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
}

@media (min-width: 640px) {
  .content-details li {
    font-size: var(--text-base);
  }
}

/* Content diagram area */
.content-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
}

.diagram-placeholder {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 1;
  background: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.diagram-placeholder:hover {
  border-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.02);
}

.diagram-icon {
  color: var(--color-text-light);
  opacity: 0.7;
  transition: all var(--transition-normal);
}

/* Diagram container for actual images */
.diagram-container {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.diagram-image {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

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

.diagram-credit {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  text-align: center;
  margin: 0;
}

.diagram-placeholder:hover .diagram-icon {
  color: var(--color-primary);
  opacity: 1;
  transform: scale(1.05);
}

.diagram-label {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  text-align: center;
  margin: 0;
  font-weight: 500;
}

.diagram-placeholder:hover .diagram-label {
  color: var(--color-primary);
}

/* Related work section */
.related-work {
  margin-top: var(--space-16);
  padding-top: var(--space-12);
  border-top: 2px solid var(--color-border);
}

.related-work-title {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--space-8);
}

.related-work-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .related-work-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.related-work-item {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.related-work-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.related-work-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.work-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-2) 0;
  line-height: 1.3;
}

.work-authors {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  margin: 0 0 var(--space-3) 0;
  font-weight: 500;
}

.work-relevance {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin: 0;
  line-height: 1.5;
  font-style: italic;
}

/* Mobile responsive adjustments */
@media (max-width: 767px) {
  .methodology-header {
    margin-bottom: var(--space-8);
  }
  
  .methodology-overview {
    margin-bottom: var(--space-12);
  }
  
  .overview-text {
    font-size: var(--text-lg);
    padding: var(--space-6);
  }
  
  .methodology-sections {
    gap: var(--space-4);
    margin-bottom: var(--space-12);
  }
  
  .section-toggle {
    padding: var(--space-5);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .section-icon {
    align-self: flex-end;
    width: 28px;
    height: 28px;
  }
  
  .section-toggle .section-title {
    font-size: var(--text-lg);
  }
  
  .section-summary {
    font-size: var(--text-xs);
  }
  
  .content-layout {
    padding: var(--space-5);
    gap: var(--space-6);
  }
  
  .content-description {
    font-size: var(--text-sm);
    text-align: left;
  }
  
  .content-details li {
    font-size: var(--text-xs);
    padding: var(--space-2);
  }
  
  .diagram-placeholder {
    max-width: 250px;
    padding: var(--space-4);
  }
  
  .related-work {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
  }
  
  .related-work-title {
    font-size: var(--text-xl);
    margin-bottom: var(--space-6);
  }
  
  .related-work-item {
    padding: var(--space-5);
  }
  
  .work-title {
    font-size: var(--text-base);
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1023px) {
  .section-toggle {
    padding: var(--space-6);
  }
  
  .content-layout {
    gap: var(--space-8);
  }
  
  .overview-text {
    font-size: var(--text-lg);
  }
}

/* Large screen optimizations */
@media (min-width: 1024px) {
  .methodology-sections {
    gap: var(--space-8);
  }
  
  .section-toggle {
    padding: var(--space-8);
  }
  
  .section-toggle .section-title {
    font-size: var(--text-2xl);
  }
  
  .section-summary {
    font-size: var(--text-base);
  }
  
  .overview-text {
    font-size: var(--text-xl);
    padding: var(--space-10);
  }
  
  .content-description {
    font-size: var(--text-lg);
  }
  
  .content-details li {
    font-size: var(--text-base);
    padding: var(--space-4);
  }
  
  .diagram-placeholder {
    max-width: 350px;
    padding: var(--space-8);
  }
  
  .related-work-title {
    font-size: var(--text-3xl);
  }
  
  .work-title {
    font-size: var(--text-xl);
  }
  
  .work-authors {
    font-size: var(--text-base);
  }
  
  .work-relevance {
    font-size: var(--text-base);
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .methodology-section,
  .section-toggle,
  .section-icon,
  .section-icon svg,
  .content-details li,
  .diagram-placeholder,
  .diagram-icon,
  .related-work-item {
    transition: none;
  }
  
  .methodology-section:hover,
  .section-toggle:hover,
  .content-details li:hover,
  .related-work-item:hover {
    transform: none;
  }
  
  .section-content {
    transition: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .methodology-section,
  .overview-text,
  .related-work-item {
    border-width: 2px;
    border-color: var(--color-text);
  }
  
  .section-icon {
    background: var(--color-text);
    color: var(--color-background);
  }
  
  .content-details li {
    border-left-width: 4px;
    background: var(--color-background);
  }
  
  .diagram-placeholder {
    border-width: 3px;
    border-color: var(--color-text);
  }
}

/* Print styles for methodology section */
@media print {
  .methodology {
    background: white;
    page-break-inside: avoid;
  }
  
  .methodology::before {
    display: none;
  }
  
  .section-content {
    max-height: none !important;
    overflow: visible !important;
  }
  
  .section-toggle {
    pointer-events: none;
  }
  
  .section-icon {
    display: none;
  }
  
  .methodology-section,
  .overview-text,
  .related-work-item {
    box-shadow: none;
    border: 1px solid #ccc;
  }
  
  .content-layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .diagram-placeholder {
    border-style: solid;
    border-color: #ccc;
  }
}
/* =
=========================================================================
   CITATION SECTION COMPONENT
   ========================================================================== */

/* Citation section container */
.citation {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
  position: relative;
  overflow: hidden;
}

.citation::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(37, 99, 235, 0.03) 0%, transparent 50%),
              radial-gradient(circle at 30% 70%, rgba(14, 165, 233, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.citation .container {
  position: relative;
  z-index: 1;
}

/* Citation header */
.citation-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

/* Citation layout */
.citation-layout {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .citation-layout {
    gap: var(--space-12);
  }
}

/* Publication identifiers section */
.citation-identifiers {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .citation-identifiers {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

/* Individual identifier item */
.identifier-item {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.identifier-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

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

/* Identifier header */
.identifier-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.identifier-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.3;
}

/* Copy identifier button */
.copy-identifier-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.copy-identifier-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: scale(1.05);
}

.copy-identifier-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.copy-identifier-btn:active {
  transform: scale(0.95);
}

/* Identifier content */
.identifier-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.identifier-text {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-surface);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  flex: 1;
  word-break: break-all;
  line-height: 1.4;
}

.identifier-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  color: var(--color-text-light);
  text-decoration: none;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.identifier-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  transform: scale(1.05);
}

.identifier-link:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* BibTeX container */
.bibtex-container {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.bibtex-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.bibtex-container:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

/* BibTeX header */
.bibtex-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) var(--space-6) var(--space-4);
  border-bottom: 2px solid var(--color-border);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-background) 100%);
}

.bibtex-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.3;
}

/* Copy BibTeX button */
.copy-bibtex-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.copy-bibtex-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-normal);
}

.copy-bibtex-btn:hover::before {
  left: 100%;
}

.copy-bibtex-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, #1d4ed8, #0284c7);
}

.copy-bibtex-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.copy-bibtex-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow);
}

.copy-icon {
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.copy-bibtex-btn:hover .copy-icon {
  transform: scale(1.1);
}

.copy-text {
  font-weight: 500;
  letter-spacing: 0.025em;
}

/* BibTeX content */
.bibtex-content {
  padding: var(--space-6);
  background: var(--color-background);
}

.bibtex-code {
  margin: 0;
  padding: var(--space-6);
  background: #f8fafc;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-text);
  overflow-x: auto;
  white-space: pre;
  word-wrap: normal;
  position: relative;
  transition: all var(--transition-fast);
}

.bibtex-code:hover {
  background: #f1f5f9;
  border-color: var(--color-primary);
}

.bibtex-code code {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  padding: 0;
  border: none;
  border-radius: 0;
}

/* Copy feedback */
.copy-feedback {
  padding: 0 var(--space-6) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
  opacity: 0;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  text-align: center;
}

.copy-feedback.show {
  opacity: 1;
  transform: translateY(0);
}

.copy-feedback.success {
  color: #059669;
}

.copy-feedback.error {
  color: #dc2626;
}

/* Mobile responsive adjustments */
@media (max-width: 767px) {
  .citation-header {
    margin-bottom: var(--space-8);
  }
  
  .citation-layout {
    gap: var(--space-6);
  }
  
  .citation-identifiers {
    gap: var(--space-4);
  }
  
  .identifier-item {
    padding: var(--space-4);
  }
  
  .identifier-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
  
  .identifier-content {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
  }
  
  .identifier-text {
    font-size: var(--text-xs);
    word-break: break-all;
  }
  
  .bibtex-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
  }
  
  .bibtex-title {
    font-size: var(--text-lg);
  }
  
  .copy-bibtex-btn {
    align-self: stretch;
    justify-content: center;
  }
  
  .bibtex-content {
    padding: var(--space-4);
  }
  
  .bibtex-code {
    padding: var(--space-4);
    font-size: var(--text-xs);
    line-height: 1.5;
  }
}

/* Tablet adjustments */
@media (min-width: 768px) and (max-width: 1023px) {
  .citation-layout {
    gap: var(--space-10);
  }
  
  .bibtex-header {
    padding: var(--space-6);
  }
  
  .bibtex-content {
    padding: var(--space-6);
  }
}

/* Large screen optimizations */
@media (min-width: 1024px) {
  .citation-layout {
    max-width: 1000px;
  }
  
  .identifier-item {
    padding: var(--space-8);
  }
  
  .bibtex-header {
    padding: var(--space-8) var(--space-8) var(--space-6);
  }
  
  .bibtex-content {
    padding: var(--space-8);
  }
  
  .bibtex-code {
    padding: var(--space-8);
    font-size: var(--text-base);
  }
}

/* Dark mode support (if implemented) */
@media (prefers-color-scheme: dark) {
  .bibtex-code {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
  }
  
  .bibtex-code:hover {
    background: #334155;
  }
  
  .identifier-text {
    background: #1e293b;
    border-color: #334155;
    color: #e2e8f0;
  }
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  .identifier-item,
  .bibtex-container,
  .copy-bibtex-btn,
  .copy-identifier-btn,
  .identifier-link,
  .copy-feedback {
    transition: none;
  }
  
  .identifier-item:hover,
  .bibtex-container:hover {
    transform: none;
  }
  
  .copy-bibtex-btn:hover,
  .copy-identifier-btn:hover,
  .identifier-link:hover {
    transform: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .identifier-item,
  .bibtex-container {
    border-width: 2px;
    border-color: var(--color-text);
  }
  
  .bibtex-code,
  .identifier-text {
    border-width: 2px;
    background: var(--color-background);
  }
  
  .copy-bibtex-btn {
    background: var(--color-text);
    color: var(--color-background);
  }
}

/* Print styles for citation section */
@media print {
  .citation {
    background: white;
    page-break-inside: avoid;
  }
  
  .citation::before {
    display: none;
  }
  
  .citation-layout {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  
  .identifier-item,
  .bibtex-container {
    box-shadow: none;
    border: 1px solid #ccc;
    page-break-inside: avoid;
  }
  
  .copy-bibtex-btn,
  .copy-identifier-btn,
  .identifier-link {
    display: none;
  }
  
  .bibtex-code {
    background: #f9f9f9;
    border: 1px solid #ccc;
  }
}

/* Celebrity Classification Results Styles */
.celebrity-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

.celebrity-pair {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.celebrity-pair:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.celebrity-pair.success {
  border-left: 4px solid #10b981;
  background: linear-gradient(135deg, #f0fdf4 0%, #f8fafc 100%);
}

.celebrity-pair.failure {
  border-left: 4px solid #ef4444;
  background: linear-gradient(135deg, #fef2f2 0%, #f8fafc 100%);
}

.celebrity-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.image-container {
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.image-container img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.image-container .label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
}

.result-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--text-lg);
}

.celebrity-pair.success .result-label {
  color: #059669;
}

.celebrity-pair.failure .result-label {
  color: #dc2626;
}

.result-label i {
  font-size: var(--text-xl);
}

/* Results Overview Metrics */
.results-overview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

.metric-card {
  background: var(--color-surface);
  border-radius: var(--border-radius-lg);
  padding: var(--space-6);
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  border-left: 4px solid var(--color-primary);
}

.metric-card h3 {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.metric-card p {
  color: var(--color-text-light);
  font-weight: 500;
}

/* Evolution Demo */
.evolution-demo {
  margin: var(--space-12) 0;
}

.evolution-demo h3 {
  text-align: center;
  margin-bottom: var(--space-6);
  color: var(--color-text);
}

.evolution-image {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
  .celebrity-results {
    grid-template-columns: 1fr;
  }
  
  .results-overview {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .celebrity-images {
    grid-template-columns: 1fr;
  }
  
  .image-container img {
    height: 150px;
  }
}