/* CSS Variables */
    :root {
      --color-beige-light: #FAF6F2;
      --color-beige-main: #F5E6D3;
      --color-beige-dark: #E8D5C4;
      --color-accent: #8FB583;
      --color-accent-light: #A5C99A;
      --color-text-primary: #2C2C2C;
      --color-text-secondary: #5A5A5A;
      --color-link: #7A9A7E;
      --color-link-hover: #5A7A5E;
      --max-width: 1200px;
    }

    /* Reset & Base */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: 'Inter', sans-serif;
      font-weight: 300;
      color: var(--color-text-primary);
      background-color: var(--color-beige-light);
      line-height: 1.6;
      overflow-x: hidden;
    }

    h1, h2, h3 {
      font-family: 'Playfair Display', serif;
      font-weight: 400;
      line-height: 1.2;
    }

    .container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
    }

    /* Navigation */
    nav {
      position: fixed;
      top: 0;
      width: 100%;
      background: rgba(250, 246, 242, 0.95);
      backdrop-filter: blur(10px);
      z-index: 1000;
      padding: 20px 0;
      transition: all 0.3s ease;
    }

    nav.scrolled {
      padding: 15px 0;
      box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    }

    .nav-container {
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .logo {
      font-family: 'Playfair Display', serif;
      font-size: 24px;
      color: var(--color-text-primary);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .logo:hover {
      color: var(--color-accent);
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 30px;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--color-text-secondary);
      font-size: 14px;
      font-weight: 400;
      letter-spacing: 0.5px;
      transition: color 0.3s ease;
      position: relative;
    }

    .nav-links a:hover {
      color: var(--color-link-hover);
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      bottom: -5px;
      left: 0;
      width: 0;
      height: 1px;
      background: var(--color-accent);
      transition: width 0.3s ease;
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    /* Hero Section */
    .hero {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 120px 20px 80px;
      position: relative;
      background: linear-gradient(135deg, var(--color-beige-light) 0%, var(--color-beige-main) 100%);
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
    }

    .hero h1 {
      font-size: clamp(3rem, 8vw, 5.5rem);
      margin-bottom: 20px;
      opacity: 0;
      transform: translateY(30px);
    }

    .hero-subtitle {
      font-size: clamp(1.2rem, 3vw, 1.8rem);
      color: var(--color-text-secondary);
      margin-bottom: 30px;
      font-weight: 300;
      font-style: italic;
      opacity: 0;
      transform: translateY(30px);
    }

    .hero-identity {
      font-size: 1rem;
      color: var(--color-text-secondary);
      margin-bottom: 40px;
      letter-spacing: 1px;
      opacity: 0;
      transform: translateY(30px);
    }

    .hero-buttons {
      display: flex;
      gap: 20px;
      justify-content: center;
      flex-wrap: wrap;
      opacity: 0;
      transform: translateY(30px);
    }

    .btn {
      padding: 12px 30px;
      text-decoration: none;
      font-size: 14px;
      font-weight: 400;
      letter-spacing: 0.5px;
      transition: all 0.3s ease;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: var(--color-accent);
      color: white;
      border-color: var(--color-accent);
    }

    .btn-primary:hover {
      background: var(--color-link-hover);
      border-color: var(--color-link-hover);
      transform: translateY(-2px);
    }

    .btn-secondary {
      background: transparent;
      color: var(--color-text-primary);
      border-color: var(--color-text-primary);
    }

    .btn-secondary:hover {
      background: var(--color-text-primary);
      color: white;
      transform: translateY(-2px);
    }

    /* Slider Section */
    .slider-section {
      padding: 80px 20px;
      background: white;
    }

    .slider-container {
      max-width: 800px;
      margin: 0 auto;
      position: relative;
      height: 200px;
      overflow: hidden;
    }

    .slide {
      position: absolute;
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 40px;
      opacity: 0;
      transition: opacity 1s ease;
    }

    .slide.active {
      opacity: 1;
    }

    .slide h3 {
      font-size: 1.8rem;
      color: var(--color-text-primary);
      margin-bottom: 10px;
    }

    .slide p {
      color: var(--color-text-secondary);
      font-size: 1rem;
    }

    .slider-dots {
      display: flex;
      justify-content: center;
      gap: 10px;
      margin-top: 30px;
    }

    .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--color-beige-dark);
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .dot.active {
      background: var(--color-accent);
      transform: scale(1.2);
    }

    /* About Preview */
    .about-preview {
      padding: 100px 20px;
      background: var(--color-beige-light);
    }

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

    .about-content h2 {
      font-size: 2.5rem;
      margin-bottom: 30px;
      color: var(--color-text-primary);
    }

    .about-text {
      font-size: 1.1rem;
      line-height: 1.8;
      color: var(--color-text-secondary);
      margin-bottom: 30px;
    }

    /* Research Tiles */
    .research-section {
      padding: 100px 20px;
      background: white;
    }

    .research-section h2 {
      text-align: center;
      font-size: 2.5rem;
      margin-bottom: 60px;
      color: var(--color-text-primary);
    }

    .research-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 30px;
      max-width: 1000px;
      margin: 0 auto;
    }

    .research-tile {
      background: var(--color-beige-light);
      padding: 40px;
      text-align: center;
      border-radius: 8px;
      transition: all 0.3s ease;
      cursor: pointer;
      position: relative;
      overflow: hidden;
    }

    .research-tile::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: var(--color-accent);
      opacity: 0;
      transition: opacity 0.3s ease;
      z-index: 1;
    }

    .research-tile:hover::before {
      opacity: 0.1;
    }

    .research-tile:hover {
      transform: translateY(-5px);
      box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }

    .research-tile i {
      font-size: 3rem;
      color: var(--color-accent);
      margin-bottom: 20px;
    }

    .research-tile h3 {
      font-size: 1.5rem;
      margin-bottom: 15px;
      color: var(--color-text-primary);
      position: relative;
      z-index: 2;
    }

    .research-tile .hover-text {
      position: absolute;
      bottom: 20px;
      left: 20px;
      right: 20px;
      opacity: 0;
      transform: translateY(10px);
      transition: all 0.3s ease;
      font-style: italic;
      color: var(--color-text-secondary);
      z-index: 2;
    }

    .research-tile:hover .hover-text {
      opacity: 1;
      transform: translateY(0);
    }

    /* Why This Matters */
    .impact-section {
      padding: 120px 20px;
      background: linear-gradient(135deg, var(--color-beige-main) 0%, var(--color-beige-light) 100%);
      text-align: center;
    }

    .impact-quote {
      font-size: clamp(1.8rem, 4vw, 2.5rem);
      font-family: 'Playfair Display', serif;
      color: var(--color-text-primary);
      max-width: 800px;
      margin: 0 auto 40px;
      font-style: italic;
    }

    .impact-stat {
      font-size: 1.2rem;
      color: var(--color-text-secondary);
    }

    .stat-number {
      font-size: 3rem;
      font-weight: 500;
      color: var(--color-accent);
      display: block;
      margin: 10px 0;
    }

    /* Talks Teaser */
    .talks-teaser {
      padding: 80px 20px;
      background: white;
      text-align: center;
    }

    .talks-content h2 {
      font-size: 2rem;
      margin-bottom: 20px;
      color: var(--color-text-primary);
    }

    .talks-content p {
      font-size: 1.1rem;
      color: var(--color-text-secondary);
      margin-bottom: 30px;
    }

    /* Footer */
    footer {
      padding: 80px 20px 40px;
      background: var(--color-text-primary);
      color: var(--color-beige-light);
      text-align: center;
    }

    .footer-content h2 {
      font-size: 2rem;
      margin-bottom: 20px;
      color: var(--color-beige-light);
    }

    .footer-text {
      font-size: 1rem;
      margin-bottom: 30px;
      opacity: 0.8;
    }

    .contact-email {
      font-size: 1.2rem;
      color: var(--color-accent-light);
      text-decoration: none;
      margin-bottom: 30px;
      display: inline-block;
      transition: color 0.3s ease;
    }

    .contact-email:hover {
      color: var(--color-accent);
    }

    .social-links {
      margin: 30px 0;
    }

    .social-links a {
      display: inline-block;
      margin: 0 15px;
      color: var(--color-beige-light);
      font-size: 1.5rem;
      transition: all 0.3s ease;
    }

    .social-links a:hover {
      color: var(--color-accent-light);
      transform: translateY(-3px);
    }

    .copyright {
      margin-top: 40px;
      padding-top: 30px;
      border-top: 1px solid rgba(255,255,255,0.1);
      font-size: 0.9rem;
      opacity: 0.6;
    }
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-primary);
  cursor: pointer;
}

@media (max-width: 768px) {
  /* Mobile menu button */
  .mobile-menu-toggle {
    display: block;
  }
  
  /* Navigation links - UPDATED */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--color-beige-light);
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  }
  
  .nav-links.active {
    display: flex;
  }

  /* Keep all your other mobile styles */
  .hero h1 {
    font-size: 3rem;
  }

  .hero-subtitle {
    font-size: 1.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
  }

  .btn {
    width: 100%;
  }

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

  .impact-quote {
    font-size: 1.8rem;
  }
}
    /* Animations */
    @keyframes fadeInUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .fade-in-up {
      animation: fadeInUp 0.8s ease forwards;
    }


    /* Page-specific Heroes */
.page-hero {
  min-height: 40vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 20px 60px;
  background: linear-gradient(135deg, var(--color-beige-light) 0%, var(--color-beige-main) 100%);
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 20px;
}

.page-hero .subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-style: italic;
}

/* Content Sections */
.page-content {
  padding-top: 40px;
  min-height: 60vh;
}

.content-section {
  padding: 80px 0;
}

.content-section:nth-child(even) {
  background: var(--color-beige-light);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}

/* Research Page Specific */
.research-narrative {
  max-width: 800px;
  margin: 0 auto 80px;
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.research-subsection {
  margin-bottom: 40px;
}

.research-subsection h3 {
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 15px;
}

.research-subsection h4 {
  font-size: 1.2rem;
  color: var(--color-text-primary);
  margin: 20px 0 10px;
  font-weight: 500;
}

.highlight-box {
  background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-beige-main) 100%);
  padding: 60px 40px;
  border-radius: 10px;
  margin: 60px 0;
  position: relative;
  overflow: hidden;
}

.highlight-box::before {
  content: '⚡';
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 3rem;
  opacity: 0.2;
}

.highlight-box h3 {
  font-size: 2rem;
  margin-bottom: 10px;
}

.figure-placeholder {
  background: var(--color-beige-dark);
  height: 300px;
  margin: 30px 0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-style: italic;
}

/* Publications Page */
.publication-item {
  padding: 30px 0;
  border-bottom: 1px solid var(--color-beige-dark);
}

.publication-item:last-child {
  border-bottom: none;
}

.author-list {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

.author-list .highlight-author {
  font-weight: 500;
  color: var(--color-text-primary);
}

.publication-title {
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 10px;
  color: var(--color-text-primary);
}

.journal-info {
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

.doi-link {
  color: var(--color-link);
  text-decoration: none;
  font-size: 0.9rem;
}

.doi-link:hover {
  color: var(--color-link-hover);
  text-decoration: underline;
}

/* Talks Page */
.talks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 30px;
}

.talk-card {
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
  position: relative;
}

.talk-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.talk-type {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--color-accent);
  color: white;
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.talk-date {
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.talk-title {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.talk-description {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Features Page */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.feature-item {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.feature-image {
  height: 200px;
  background: var(--color-beige-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
}

.feature-content {
  padding: 20px;
}

.feature-badge {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-text-primary);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  margin-bottom: 10px;
}

/* About Page */
.about-section {
  max-width: 800px;
  margin: 0 auto;
  padding: 60px 20px;
}

.journey-timeline {
  position: relative;
  padding-left: 40px;
  margin: 40px 0;
}

.journey-timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  height: 100%;
  width: 2px;
  background: var(--color-accent-light);
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -35px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-beige-light);
}

.beyond-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.beyond-card {
  background: var(--color-beige-light);
  padding: 30px;
  border-radius: 8px;
  text-align: center;
}

.beyond-card i {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 15px;
}

/* Contact Page */
.contact-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 20px;
}

.contact-methods {
  display: grid;
  gap: 30px;
  margin: 40px 0;
}

.contact-method {
  background: var(--color-beige-light);
  padding: 40px;
  border-radius: 8px;
}

.contact-method i {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: 15px;
}

.contact-method h3 {
  margin-bottom: 10px;
}

/* CV Page */
.cv-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 60px 20px;
}

.cv-download {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0;
  padding: 15px 30px;
  background: var(--color-accent);
  color: white;
  text-decoration: none;
  border-radius: 5px;
  transition: all 0.3s ease;
}

.cv-download:hover {
  background: var(--color-link-hover);
  transform: translateY(-2px);
}

/* Responsive Updates */
@media (max-width: 768px) {
  .page-hero h1 {
    font-size: 2.5rem;
  }
  
  .talks-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    flex-wrap: wrap;
    padding: 20px;
    gap: 15px;
  }
}