/* CSS Variables for Futuristic Eco-Minimalism Theme */
:root {
  /* Primary Monochromatic Colors */
  --color-primary: #000000;
  --color-primary-light: #333333;
  --color-primary-dark: #000000;
  --color-secondary: #666666;
  --color-secondary-light: #999999;
  --color-secondary-dark: #333333;
  
  /* Accent Colors */
  --color-accent: #ffffff;
  --color-accent-light: #f5f5f5;
  --color-accent-dark: #e0e0e0;
  
  /* Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #000000;
  --color-bg-glass: rgba(255, 255, 255, 0.1);
  
  /* Text Colors */
  --color-text-primary: #000000;
  --color-text-secondary: #666666;
  --color-text-light: #ffffff;
  --color-text-muted: #999999;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #000000 0%, #333333 100%);
  --gradient-secondary: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 100%);
  
  /* Typography */
  --font-primary: 'Playfair Display', serif;
  --font-secondary: 'Source Sans Pro', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;
  
  /* Borders and Shadows */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.2);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-secondary);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

/* Global Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
  min-width: 150px;
}

.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-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-light);
  box-shadow: var(--shadow-md);
}

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

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

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

button, input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-medium);
  background: var(--gradient-primary);
  color: var(--color-text-light);
  min-width: 150px;
}

button:hover, input[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Section Title */
.section-title {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: all var(--transition-medium);
}

.navbar {
  padding: var(--spacing-sm) 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--spacing-md);
}

.nav-logo .logo-link {
  font-family: var(--font-primary);
  font-size: 1.8rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all var(--transition-medium);
}

.nav-logo .logo-link:hover {
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text-secondary);
  font-weight: 500;
  position: relative;
  transition: all var(--transition-medium);
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: rgba(0, 0, 0, 0.05);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-medium);
  transform: translateX(-50%);
}

.nav-link:hover::after {
  width: 80%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle .bar {
  width: 25px;
  height: 3px;
  background: var(--color-primary);
  transition: all var(--transition-medium);
  border-radius: 2px;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-overlay);
  z-index: 1;
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.hero-title {
  font-size: 4rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Research Section */
.research {
  padding: var(--spacing-xxl) 0;
  background: var(--color-bg-secondary);
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.research-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  position: relative;
}

.research-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.research-card .card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  position: relative;
}

.research-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-slow);
}

.research-card:hover .card-image img {
  transform: scale(1.1);
}

.research-card .card-content {
  padding: var(--spacing-lg);
  text-align: center;
}

.research-card .card-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

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

/* Accolades Section */
.accolades {
  padding: var(--spacing-xxl) 0;
  background: var(--color-bg-tertiary);
  color: var(--color-text-light);
}

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

.accolades .section-title::after {
  background: var(--color-accent);
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-accent);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
  display: flex;
  align-items: center;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-marker {
  width: 20px;
  height: 20px;
  background: var(--color-accent);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  border: 4px solid var(--color-bg-tertiary);
}

.timeline-content {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  max-width: 45%;
  margin: 0 5%;
  box-shadow: var(--shadow-md);
}

.timeline-content h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.timeline-content p {
  color: var(--color-text-light);
  opacity: 0.9;
}

/* Portfolio Section */
.portfolio {
  padding: var(--spacing-xxl) 0;
  background: var(--color-bg-primary);
}

.portfolio-carousel {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.carousel-container {
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: auto;
  scroll-behavior: smooth;
  padding: var(--spacing-md) 0;
}

.carousel-container::-webkit-scrollbar {
  display: none;
}

.portfolio-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 350px;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  position: relative;
}

.portfolio-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.portfolio-card .card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}

.portfolio-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-slow);
}

.portfolio-card:hover .card-image img {
  transform: scale(1.1);
}

.portfolio-card .card-content {
  padding: var(--spacing-lg);
  text-align: center;
}

.portfolio-card .card-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

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

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.carousel-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-text-light);
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-sm);
}

.carousel-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

/* Resources Section */
.resources {
  padding: var(--spacing-xxl) 0;
  background: var(--color-bg-secondary);
}

.external-links {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.external-links h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.resource-link {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-md);
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-md);
  text-decoration: none;
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
}

.resource-link:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.link-title {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.link-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

.resource-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-bg-primary);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  position: relative;
}

.resource-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.resource-card .card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  position: relative;
}

.resource-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-slow);
}

.resource-card:hover .card-image img {
  transform: scale(1.1);
}

.resource-card .card-content {
  padding: var(--spacing-lg);
  text-align: center;
}

.resource-card .card-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

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

/* Contact Section */
.contact {
  padding: var(--spacing-xxl) 0;
  background: var(--color-bg-primary);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info {
  padding: var(--spacing-lg);
}

.contact-info h3 {
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.info-item {
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-medium);
  border-left: 4px solid var(--color-primary);
}

.info-item:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-sm);
}

.info-item h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
  font-size: 1.1rem;
}

.info-item p {
  color: var(--color-text-secondary);
  margin: 0;
}

.contact-form-container {
  padding: var(--spacing-lg);
}

.contact-form {
  background: var(--color-bg-secondary);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 16px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-secondary);
  font-size: 1rem;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  transition: all var(--transition-medium);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.form-group label {
  position: absolute;
  top: -8px;
  left: 16px;
  background: var(--color-bg-secondary);
  padding: 0 8px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.btn-submit {
  width: 100%;
  margin-top: var(--spacing-md);
}

/* FAQ Section */
.faq {
  padding: var(--spacing-xxl) 0;
  background: var(--color-bg-secondary);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--color-bg-primary);
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
}

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

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  cursor: pointer;
  background: var(--color-bg-primary);
  transition: all var(--transition-medium);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.faq-question:hover {
  background: var(--color-bg-secondary);
}

.faq-question h3 {
  margin: 0;
  color: var(--color-text-primary);
  font-size: 1.2rem;
  flex: 1;
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-primary);
  transition: all var(--transition-medium);
  width: 30px;
  text-align: center;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-medium);
}

.faq-item.active .faq-answer {
  padding: var(--spacing-lg);
  max-height: 500px;
}

.faq-answer p {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Footer */
.footer {
  background: var(--color-bg-tertiary);
  color: var(--color-text-light);
  padding: var(--spacing-xxl) 0 var(--spacing-md) 0;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.footer-section h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  font-size: 1.3rem;
}

.footer-section p {
  color: var(--color-text-light);
  opacity: 0.9;
  line-height: 1.7;
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: var(--color-text-light);
  text-decoration: none;
  opacity: 0.8;
  transition: all var(--transition-medium);
  display: inline-block;
}

.footer-section ul li a:hover {
  opacity: 1;
  transform: translateX(5px);
  color: var(--color-accent);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-links a {
  color: var(--color-text-light);
  text-decoration: none;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-medium);
  font-weight: 500;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
}

.social-links a:hover {
  background: var(--color-accent);
  color: var(--color-text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  text-align: center;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.footer-bottom p {
  margin: 0;
  color: var(--color-text-light);
  opacity: 0.7;
  font-size: 0.9rem;
}

/* Success Page Styles */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--color-text-light);
}

.success-content {
  text-align: center;
  max-width: 600px;
  padding: var(--spacing-xl);
}

.success-content h1 {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.success-content p {
  color: var(--color-text-light);
  opacity: 0.9;
  margin-bottom: var(--spacing-xl);
  font-size: 1.2rem;
}

/* Privacy and Terms Pages */
.privacy-content,
.terms-content,
.about-content {
  padding-top: 120px;
  padding-bottom: var(--spacing-xxl);
  max-width: 800px;
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.privacy-content h1,
.terms-content h1,
.about-content h1 {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.privacy-content h2,
.terms-content h2,
.about-content h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

.privacy-content p,
.terms-content p,
.about-content p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

.privacy-content ul,
.terms-content ul,
.about-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.privacy-content li,
.terms-content li,
.about-content li {
  margin-bottom: var(--spacing-xs);
  line-height: 1.7;
}

/* About Page Specific Styles */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-medium);
  text-align: center;
}

.team-member:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.team-member img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto var(--spacing-md) auto;
  border: 4px solid var(--color-accent);
}

.team-member h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.team-member .position {
  color: var(--color-text-secondary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.team-member p {
  color: var(--color-text-secondary);
  line-height: 1.6;
  font-size: 0.9rem;
}

/* Read More Links */
.read-more {
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-medium);
  margin-top: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  background: rgba(0, 0, 0, 0.05);
}

.read-more:hover {
  background: var(--color-primary);
  color: var(--color-text-light);
  transform: translateX(5px);
}

.read-more::after {
  content: '→';
  margin-left: var(--spacing-xs);
  transition: all var(--transition-medium);
}

.read-more:hover::after {
  transform: translateX(3px);
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --spacing-xxl: 4rem;
    --spacing-xl: 3rem;
    --spacing-lg: 2rem;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .nav-menu {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--spacing-md);
    transform: translateY(-100%);
    transition: all var(--transition-medium);
    opacity: 0;
    visibility: hidden;
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .contact-content {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 20px;
  }

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

  .timeline-item:nth-child(odd) {
    flex-direction: row;
  }

  .timeline-marker {
    left: 20px;
    transform: none;
  }

  .timeline-content {
    max-width: calc(100% - 60px);
    margin-left: 60px;
    margin-right: 0;
  }

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

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

  .carousel-container {
    flex-direction: column;
    align-items: center;
  }

  .portfolio-card {
    min-width: 100%;
    max-width: 400px;
  }

  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }
  h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
    min-width: 120px;
  }

  .social-links {
    flex-direction: column;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
}

/* Morphing Animations */
@keyframes morphing {
  0% {
    border-radius: var(--border-radius-sm);
    transform: scale(1) rotate(0deg);
  }
  25% {
    border-radius: var(--border-radius-md);
    transform: scale(1.05) rotate(1deg);
  }
  50% {
    border-radius: var(--border-radius-lg);
    transform: scale(1.1) rotate(0deg);
  }
  75% {
    border-radius: var(--border-radius-md);
    transform: scale(1.05) rotate(-1deg);
  }
  100% {
    border-radius: var(--border-radius-sm);
    transform: scale(1) rotate(0deg);
  }
}

.morphing-element:hover {
  animation: morphing 2s infinite;
}

/* Apply morphing to interactive elements */
.btn:hover,
.research-card:hover,
.portfolio-card:hover,
.resource-card:hover {
  animation: morphing 2s infinite;
}

/* Glassmorphism Effects */
.glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Parallax Effect */
.parallax {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
}