/* Root Variables for Color Scheme and Theme */
:root {
  /* Tetrad Color Scheme */
  --primary-color: #3a86ff; /* Main blue */
  --primary-dark: #2563c8; /* Darker blue for hover states */
  --primary-light: #75a8ff; /* Lighter blue for highlights */
  
  --secondary-color: #ff006e; /* Complementary pink */
  --secondary-dark: #cc0058; /* Darker pink for hover states */
  --secondary-light: #ff5a9a; /* Lighter pink for highlights */
  
  --tertiary-color: #8338ec; /* Tertiary purple */
  --tertiary-dark: #6a2cbe; /* Darker purple for hover states */
  --tertiary-light: #a46ef5; /* Lighter purple for highlights */
  
  --quaternary-color: #ffbe0b; /* Quaternary yellow */
  --quaternary-dark: #d49e00; /* Darker yellow for hover states */
  --quaternary-light: #ffce4f; /* Lighter yellow for highlights */
  
  /* Neutral Colors */
  --neutral-100: #ffffff;
  --neutral-200: #f8f9fa;
  --neutral-300: #e9ecef;
  --neutral-400: #dee2e6;
  --neutral-500: #adb5bd;
  --neutral-600: #6c757d;
  --neutral-700: #495057;
  --neutral-800: #343a40;
  --neutral-900: #212529;
  
  /* Typography */
  --heading-font: 'Poppins', sans-serif;
  --body-font: 'Work Sans', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  --space-xxxl: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 2rem;
  --radius-pill: 50rem;
  --radius-circle: 50%;
  
  /* Shadows for Neuromorphic Design */
  --shadow-small: 3px 3px 6px rgba(0, 0, 0, 0.1), -3px -3px 6px rgba(255, 255, 255, 0.7);
  --shadow-medium: 5px 5px 10px rgba(0, 0, 0, 0.1), -5px -5px 10px rgba(255, 255, 255, 0.7);
  --shadow-large: 10px 10px 20px rgba(0, 0, 0, 0.1), -10px -10px 20px rgba(255, 255, 255, 0.7);
  --shadow-inset: inset 3px 3px 6px rgba(0, 0, 0, 0.1), inset -3px -3px 6px rgba(255, 255, 255, 0.7);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Containers */
  --container-max-width: 1200px;
  --container-padding: 1rem;
  
  /* Z-index layers */
  --z-back: -1;
  --z-normal: 1;
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--body-font);
  color: var(--neutral-800);
  background-color: var(--neutral-200);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-md);
  color: var(--neutral-900);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-lg);
}

h2 {
  font-size: 2rem;
  margin-bottom: var(--space-lg);
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--primary-color);
  border-radius: var(--radius-sm);
}

h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

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

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

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

section {
  padding: var(--space-xxl) 0;
  position: relative;
}

.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-intro {
  max-width: 800px;
  margin: 0 auto var(--space-xl);
  text-align: center;
  font-size: 1.1rem;
  color: var(--neutral-700);
}

/* Button Styles */
.btn,
button,
input[type='submit'] {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--heading-font);
  font-weight: 500;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-medium);
  border: none;
  box-shadow: var(--shadow-small);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:hover,
button:hover,
input[type='submit']:hover {
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.btn:active,
button:active,
input[type='submit']:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-inset);
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
}

.btn-tertiary {
  background-color: var(--tertiary-color);
  color: white;
}

.btn-tertiary:hover {
  background-color: var(--tertiary-dark);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: white;
}

/* Neuromorphic Card Styles */
.card, 
.blog-card, 
.case-study, 
.innovation-card,
.resource-card {
  background-color: var(--neutral-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}

.card:hover, 
.blog-card:hover, 
.case-study:hover, 
.innovation-card:hover,
.resource-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-large);
}

.card-image,
.blog-card .image-container,
.case-study .case-image,
.innovation-card .card-image {
  width: 100%;
  height: 250px;
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.card-image img,
.blog-card .image-container img,
.case-study .case-image img,
.innovation-card .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

.card:hover img,
.blog-card:hover img,
.case-study:hover img,
.innovation-card:hover img {
  transform: scale(1.05);
}

.card-content,
.blog-content,
.case-content {
  width: 100%;
  text-align: center;
}

/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: var(--z-fixed);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: var(--space-sm) 0;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  display: block;
}

.logo img {
  max-height: 60px;
}

.desktop-nav ul {
  display: flex;
  gap: var(--space-lg);
}

.desktop-nav a {
  color: var(--neutral-800);
  font-weight: 500;
  padding: var(--space-sm) 0;
  position: relative;
}

.desktop-nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-medium);
}

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

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

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background-color: var(--neutral-800);
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
}

.mobile-nav {
  display: none;
}

/* Hero Section */
.hero {
  padding: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: white;
  position: relative;
  margin-bottom: var(--space-xxl);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.3));
  z-index: var(--z-back);
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: var(--z-normal);
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--space-lg);
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--space-xl);
  color: white;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

/* Animals Section (Portfolio) */
.animals {
  background-color: var(--neutral-100);
}

.animal-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

/* Discovery Section (Blog) */
.discovery {
  background-color: var(--neutral-200);
  position: relative;
  overflow: hidden;
}

.blog-carousel {
  display: flex;
  gap: var(--space-xl);
  padding: var(--space-md) 0;
}

@media (max-width: 1118px) {
  .blog-carousel {
    align-items: center;
    flex-direction: column;
  }
}

.blog-card {
  min-width: 350px;
  flex: 1;
  max-width: 500px;
}

.blog-card .date {
  color: var(--tertiary-color);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.read-more {
  display: inline-block;
  margin-top: var(--space-md);
  color: var(--primary-color);
  font-weight: 500;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-medium);
}

.read-more:hover {
  color: var(--primary-dark);
  border-bottom-color: var(--primary-dark);
}

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

.prev-btn, .next-btn {
  background-color: var(--neutral-100);
  color: var(--neutral-800);
  border: none;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-medium);
  box-shadow: var(--shadow-small);
}

.prev-btn:hover, .next-btn:hover {
  background-color: var(--primary-light);
  color: var(--neutral-100);
  transform: translateY(-3px);
}

/* Research Section (Case Studies) */
.research {
  background-color: var(--neutral-100);
}

.case-studies {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxl);
}

.case-study {
  display: flex;
  flex-direction: row;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-xl);
}

.case-image {
  flex: 1;
  max-width: 40%;
}

.case-content {
  flex: 1.5;
  text-align: left;
}

/* Innovation Section */
.innovation {
  background-color: var(--neutral-200);
  position: relative;
}

.innovation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

/* Resources Section */
.resources {
  background-color: var(--neutral-100);
}

.resource-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.resource-card {
  text-align: center;
  padding: var(--space-xl);
}

.resource-card h3 {
  margin-bottom: var(--space-md);
}

.resource-card a {
  color: var(--tertiary-color);
  font-weight: 500;
  transition: color var(--transition-medium);
}

.resource-card a:hover {
  color: var(--tertiary-dark);
}

/* Contact Section */
.contact {
  background-color: var(--neutral-200);
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xxl);
}

.contact-info h2 {
  margin-bottom: var(--space-lg);
}

.contact-details {
  margin: var(--space-xl) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.detail-item h3 {
  margin-bottom: var(--space-xs);
  color: var(--secondary-color);
}

.map-container {
  margin-top: var(--space-xl);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-medium);
}

.contact-form-container {
  background-color: var(--neutral-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--space-xl);
}

.contact-form-container h3 {
  margin-bottom: var(--space-lg);
  text-align: center;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--neutral-700);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-md);
  border: none;
  border-radius: var(--radius-md);
  background-color: var(--neutral-200);
  box-shadow: var(--shadow-inset);
  font-family: var(--body-font);
  transition: box-shadow var(--transition-medium);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  box-shadow: inset 3px 3px 6px rgba(0, 0, 0, 0.2), inset -3px -3px 6px rgba(255, 255, 255, 0.9);
}

/* Footer Section */
.footer {
  background-color: var(--neutral-800);
  color: var(--neutral-300);
  padding: var(--space-xxl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xxl);
  margin-bottom: var(--space-xxl);
}

.footer-logo img {
  margin-bottom: var(--space-lg);
}

.footer-logo p {
  max-width: 300px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.link-group h3 {
  color: var(--neutral-200);
  margin-bottom: var(--space-lg);
  font-size: 1.2rem;
}

.link-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.link-group a {
  color: var(--neutral-400);
  transition: color var(--transition-fast);
}

.link-group a:hover {
  color: var(--primary-light);
}

.social-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

.social-links a {
  display: flex;
  align-items: center;
  color: var(--neutral-400);
  transition: color var(--transition-fast);
}

.social-links a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--neutral-700);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

/* Cookie Consent */
.cookie-popup {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 400px;
  background-color: var(--neutral-100);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-large);
  padding: var(--space-lg);
  z-index: var(--z-modal);
  display: none;
}

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

.cookie-btn {
  margin-top: var(--space-md);
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.cookie-btn:hover {
  background-color: var(--primary-dark);
}

/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-xl);
}

.success-content {
  max-width: 600px;
  background-color: var(--neutral-100);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-medium);
  padding: var(--space-xxl);
}

.success-content h1 {
  color: var(--primary-color);
  margin-bottom: var(--space-lg);
}

.success-content p {
  margin-bottom: var(--space-xl);
}

/* Privacy & Terms Pages */
.page-content {
  padding-top: 100px;
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: var(--space-xxl);
}

.page-content h1 {
  margin-bottom: var(--space-xl);
}

.page-content h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
}

.page-content p,
.page-content ul {
  margin-bottom: var(--space-md);
}

.page-content ul {
  padding-left: var(--space-lg);
  list-style-type: disc;
}

/* Animation Utilities */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
  40% {transform: translateY(-20px);}
  60% {transform: translateY(-10px);}
}

.bounce {
  animation: bounce 2s ease infinite;
}

@keyframes fadeIn {
  0% {opacity: 0; transform: translateY(20px);}
  100% {opacity: 1; transform: translateY(0);}
}

.fade-in {
  animation: fadeIn 1s ease forwards;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .case-study {
    flex-direction: column;
  }
  
  .case-image {
    max-width: 100%;
    margin-bottom: var(--space-lg);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  
  .footer-logo {
    text-align: center;
  }
  
  .footer-logo p {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-nav.active {
    display: block;
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--neutral-100);
    padding: var(--space-lg);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    z-index: var(--z-fixed);
  }
  
  .mobile-nav ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .mobile-nav a {
    display: block;
    padding: var(--space-sm) 0;
    font-size: 1.2rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero p {
    font-size: 1.1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: var(--space-md);
  }
}

@media (max-width: 576px) {
  :root {
    --space-xxl: 2rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  .contact-details {
    grid-template-columns: 1fr;
  }
  
  .card, 
  .blog-card, 
  .case-study, 
  .innovation-card,
  .resource-card {
    padding: var(--space-md);
  }
}