:root {
  /* Primary colors */
  --primary: #0066ff;
  --primary-dark: #0052cc;
  --primary-light: #4d94ff;
  --primary-transparent: rgba(0, 102, 255, 0.1);
  
  /* Secondary colors */
  --secondary: #00c8ff;
  --secondary-dark: #00a3cc;
  --secondary-light: #66e0ff;
  
  /* Monochromatic background colors */
  --dark: #121212;
  --dark-gray: #1e1e1e;
  --medium-gray: #2d2d2d;
  --light-gray: #3d3d3d;
  --lighter-gray: #4d4d4d;
  
  /* Text colors */
  --text-white: #ffffff;
  --text-light: #f0f0f0;
  --text-muted: #b0b0b0;
  
  /* Shadows */
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 8px 15px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 15px 30px rgba(0, 0, 0, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  
  /* 3D effect */
  --depth-1: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --depth-2: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --depth-3: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-xxl: 32px;
  --radius-round: 50%;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Font settings */
  --font-heading: 'Raleway', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  
  /* Z-index levels */
  --z-base: 1;
  --z-above: 5;
  --z-header: 100;
  --z-modal: 1000;
}

/* Global Styles */
body {
  font-family: var(--font-body);
  color: var(--text-light);
  background-color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 1rem;
}

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

a:hover {
  color: var(--primary-light);
  text-decoration: none;
}

p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

/* Global Container Modifications */
.container {
  padding: 0 1.5rem;
}

/* Section Styles */
section {
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

/* Button Styles - Global */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal);
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: none;
  text-align: center;
  z-index: 1;
  font-family: var(--font-heading);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
  z-index: -1;
}

.btn:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.btn:hover::before {
  transform: translateY(0);
}

.btn:active {
  transform: translateY(-2px);
}

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

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

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

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

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

.btn-outline-light:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text-white);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.rounded-pill {
  border-radius: 50px;
}

/* Form Controls */
.form-control, .form-select {
  background-color: var(--dark-gray);
  border-color: var(--light-gray);
  color: var(--text-light);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
  padding: 0.75rem 1rem;
}

.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 0.25rem var(--primary-transparent);
  background-color: var(--dark-gray);
  color: var(--text-white);
}

.form-label {
  margin-bottom: 0.5rem;
  font-weight: 500;
}

/* Header & Navigation */
header {
  transition: background-color var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.75rem;
}

.nav-link {
  font-weight: 500;
  padding: 0.5rem 1rem !important;
  margin: 0 0.25rem;
  transition: color var(--transition-normal), background-color var(--transition-normal);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
}

.nav-link:hover {
  color: var(--primary) !important;
  background-color: rgba(0, 102, 255, 0.1);
}

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

#hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.5));
}

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

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--text-white);
  text-shadow: 0 0 15px rgba(0, 0, 0, 0.5);
}

.hero-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: var(--text-white);
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .hero-content p {
    font-size: 1.1rem;
  }
}

/* Card Styles */
.card {
  border: none;
  background-color: var(--dark-gray);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
}

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

.card .card-image {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.card .card-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-normal);
  display: block;
  margin: 0 auto;
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.card-content h3 {
  margin-top: 0;
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card-content p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

/* Progress Bars */
.progress {
  height: 5px;
  background-color: var(--light-gray);
  margin: 1.5rem 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.progress-bar {
  background-color: var(--primary);
  transition: width 1s ease;
}

/* Testimonials */
.testimonial {
  background-color: var(--dark-gray);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.testimonial:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.testimonial img {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-round);
  object-fit: cover;
  margin: 0 auto;
  display: block;
}

/* Team Members */
.team-member {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--dark-gray);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-md);
}

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

.team-member img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
  margin: 0 auto;
}

.team-member-content {
  padding: 1.5rem;
}

.team-member h3 {
  font-size: 1.5rem;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.team-member p {
  color: var(--text-muted);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-round);
  background-color: var(--light-gray);
  color: var(--text-white);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.social-links a:hover {
  background-color: var(--primary);
  color: var(--text-white);
}

/* Process Section */
.process-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 3rem;
}

.process-number {
  width: 60px;
  height: 60px;
  background-color: var(--primary);
  color: var(--text-white);
  border-radius: var(--radius-round);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

/* Stats Section */
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--dark-gray);
  padding: 2rem;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal);
  box-shadow: var(--shadow-md);
}

.stat-item:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

.stat-text {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

/* Contact Section */
.contact-info {
  display: flex;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.contact-icon {
  font-size: 1.5rem;
  color: var(--primary);
  margin-right: 1rem;
  flex-shrink: 0;
}

.contact-details h4 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

.contact-details p {
  margin-bottom: 0;
  color: var(--text-muted);
}

/* Footer */
footer {
  background-color: var(--dark-gray);
  padding: 4rem 0 2rem;
}

footer h3 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  position: relative;
}

footer h3::after {
  content: '';
  position: absolute;
  bottom: -0.5rem;
  left: 0;
  width: 50px;
  height: 2px;
  background-color: var(--primary);
}

footer ul {
  padding-left: 0;
  list-style: none;
}

footer ul li {
  margin-bottom: 0.75rem;
}

footer a {
  color: var(--text-light);
  transition: color var(--transition-normal), padding-left var(--transition-normal);
}

footer a:hover {
  color: var(--primary);
  padding-left: 5px;
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--light-gray);
}

/* Social Media Links in Footer */
.social-links a {
  color: var(--text-light);
  font-weight: 500;
  margin-right: 1rem;
  transition: color var(--transition-normal);
  text-decoration: none;
}

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

/* Success Page */
.success-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 100vh;
  padding: 2rem;
  background-color: var(--dark);
}

.success-icon {
  font-size: 5rem;
  color: var(--primary);
  margin-bottom: 2rem;
}

.success-page h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.success-page p {
  font-size: 1.2rem;
  max-width: 600px;
  margin-bottom: 2rem;
}

/* Privacy & Terms Pages */
.privacy-page, .terms-page {
  padding-top: 100px;
  padding-bottom: 4rem;
}

.privacy-page h1, .terms-page h1 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

.privacy-page h2, .terms-page h2 {
  font-size: 1.8rem;
  margin-top: 3rem;
  margin-bottom: 1.5rem;
}

.privacy-page p, .terms-page p {
  margin-bottom: 1.5rem;
}

/* Animations */
@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

.float-animation {
  animation: float 3s ease-in-out infinite;
}

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

.fade-in-up {
  animation: fadeInUp 1s ease;
}

/* 3D Effect Classes */
.depth-1 {
  box-shadow: var(--depth-1);
}

.depth-2 {
  box-shadow: var(--depth-2);
}

.depth-3 {
  box-shadow: var(--depth-3);
}

/* Glassmorphism Effect */
.glass-effect {
  background: rgba(30, 30, 30, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Research Section */
.research-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2rem;
}

.research-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.read-more {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition-normal);
}

.read-more::after {
  content: '→';
  margin-left: 0.5rem;
  transition: transform var(--transition-normal);
}

.read-more:hover {
  transform: translateX(5px);
}

.read-more:hover::after {
  transform: translateX(5px);
}

/* Community Section */
.community-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--dark-gray);
  padding: 2rem;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
}

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

.community-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

/* News Section */
.news-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--dark-gray);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  height: 100%;
}

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

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

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
  display: block;
  margin: 0 auto;
}

.news-card:hover .news-image img {
  transform: scale(1.05);
}

.news-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  text-align: center;
}

.news-date {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

/* Accolades Section */
.accolade-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--dark-gray);
  padding: 2rem;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
}

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

.accolade-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

/* Projects Section */
.project-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background-color: var(--dark-gray);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  margin-bottom: 2rem;
  box-shadow: var(--shadow-md);
  height: 100%;
}

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

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

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
  display: block;
  margin: 0 auto;
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

.project-category {
  display: inline-block;
  background-color: var(--primary-transparent);
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

/* Responsive Adjustments */
@media (max-width: 992px) {
  .hero-content h1 {
    font-size: 3rem;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  section {
    padding: 4rem 0;
  }
  
  .process-number {
    width: 50px;
    height: 50px;
    font-size: 1.2rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .contact-info {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .contact-icon {
    margin-right: 0;
    margin-bottom: 0.5rem;
  }
}

@media (max-width: 576px) {
  .hero-content h1 {
    font-size: 2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
  
  section {
    padding: 3rem 0;
  }
}

/* Custom Animations for AOS Library */
[data-aos="zoom-out-up"] {
  transform: scale(1.2) translateY(50px);
  opacity: 0;
  transition-property: transform, opacity;
}

[data-aos="zoom-out-up"].aos-animate {
  transform: scale(1) translateY(0);
  opacity: 1;
}

[data-aos="flip-left"] {
  transform: perspective(2500px) rotateY(90deg);
  opacity: 0;
  transition-property: transform, opacity;
}

[data-aos="flip-left"].aos-animate {
  transform: perspective(2500px) rotateY(0);
  opacity: 1;
}

/* Utility Classes */
.text-primary {
  color: var(--primary) !important;
}

.bg-primary {
  background-color: var(--primary) !important;
}

.bg-dark {
  background-color: var(--dark) !important;
}

.bg-dark-gray {
  background-color: var(--dark-gray) !important;
}

.text-white {
  color: var(--text-white) !important;
}

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

.text-muted {
  color: var(--text-muted) !important;
}

.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}

.shadow-md {
  box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}

.rounded-4 {
  border-radius: var(--radius-lg) !important;
}

/* Additional Script for Animations */
document.addEventListener('DOMContentLoaded', function() {
  // Initialize AOS
  AOS.init({
    duration: 1000,
    once: true
  });
  
  // Navbar color change on scroll
  window.addEventListener('scroll', function() {
    const navbar = document.querySelector('header');
    if (window.scrollY > 50) {
      navbar.classList.add('bg-dark');
      navbar.classList.remove('bg-transparent');
    } else {
      navbar.classList.add('bg-transparent');
      navbar.classList.remove('bg-dark');
    }
  });
  
  // Parallax effect
  const parallaxElements = document.querySelectorAll('[data-parallax]');
  window.addEventListener('scroll', function() {
    const scrollY = window.scrollY;
    parallaxElements.forEach(element => {
      const speed = element.getAttribute('data-parallax');
      element.style.transform = `translateY(${scrollY * speed}px)`;
    });
  });
});