:root {
  /* Brutalism Design System */
  --brutalism-primary: #ff4d00;
  --brutalism-primary-dark: #cc3e00;
  --brutalism-secondary: #0062ff;
  --brutalism-secondary-dark: #004ed6;
  --brutalism-accent: #3dffdc;
  --brutalism-accent-dark: #00d6b0;
  --brutalism-dark: #161616;
  --brutalism-light: #f7f7f7;
  --brutalism-mid: #7a7a7a;
  
  /* Complementary Color Scheme */
  --color-primary: var(--brutalism-primary);
  --color-primary-dark: var(--brutalism-primary-dark);
  --color-secondary: var(--brutalism-secondary);
  --color-secondary-dark: var(--brutalism-secondary-dark);
  --color-accent: var(--brutalism-accent);
  --color-accent-dark: var(--brutalism-accent-dark);
  --color-dark: var(--brutalism-dark);
  --color-light: var(--brutalism-light);
  --color-mid: var(--brutalism-mid);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  --gradient-overlay: linear-gradient(to bottom, rgba(0,0,0,0.1) 0%, rgba(0,0,0,0.7) 100%);
  
  /* Typography */
  --font-heading: 'Manrope', sans-serif;
  --font-body: 'Rubik', sans-serif;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-sm: 0.875rem;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
  
  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-width: 2px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
  font-size: var(--font-size-base);
}

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

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

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

/* Adaptive Typography */
.adaptive-typo {
  font-size: calc(1.5rem + 1.5vw);
  font-weight: 900;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

.section-title {
  font-size: calc(1.5rem + 0.5vw);
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-bottom: var(--spacing-sm);
  letter-spacing: -0.5px;
}

.section-title:after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-primary);
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

/* Utility Classes */
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-light { color: var(--color-light) !important; }
.text-dark { color: var(--color-dark) !important; }
.text-mid { color: var(--color-mid) !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-secondary { background-color: var(--color-secondary) !important; }
.bg-accent { background-color: var(--color-accent) !important; }
.bg-light { background-color: var(--color-light) !important; }
.bg-dark { background-color: var(--color-dark) !important; }
.bg-mid { background-color: var(--color-mid) !important; }

.bg-gradient-primary { background: var(--gradient-primary) !important; }
.bg-gradient-secondary { background: var(--gradient-secondary) !important; }
.bg-gradient-accent { background: var(--gradient-accent) !important; }

/* Button Styles */
.btn, 
button, 
input[type='submit'] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  box-shadow: var(--shadow-md);
  border: none;
  text-decoration: none;
}

.btn:hover, 
button:hover, 
input[type='submit']:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
}

.btn:active, 
button:active, 
input[type='submit']:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-primary, 
.btn-primary:visited {
  background-color: var(--color-primary);
  color: var(--color-light);
}

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

.btn-secondary, 
.btn-secondary:visited {
  background-color: var(--color-secondary);
  color: var(--color-light);
}

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

.btn-outline-light {
  background-color: transparent;
  color: var(--color-light);
  border: var(--border-width) solid var(--color-light);
}

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

.btn-outline-dark {
  background-color: transparent;
  color: var(--color-dark);
  border: var(--border-width) solid var(--color-dark);
}

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

.btn-brutalism {
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 6px),
    calc(100% - 6px) 100%,
    0 100%
  );
  font-weight: 800;
  position: relative;
  overflow: hidden;
}

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

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

.btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Form Elements */
.form-control-brutalism, 
.form-select-brutalism {
  border: var(--border-width) solid var(--color-dark);
  border-radius: 0;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  transition: all var(--transition-normal);
}

.form-control-brutalism:focus, 
.form-select-brutalism:focus {
  outline: none;
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

/* Card Styles */
.card-brutalism {
  background-color: var(--color-light);
  border: var(--border-width) solid var(--color-dark);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.1);
  transition: all var(--transition-normal);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card-brutalism:hover {
  transform: translateY(-5px);
  box-shadow: 12px 12px 0 rgba(0, 0, 0, 0.05);
}

.card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

.card-content {
  padding: var(--spacing-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-content h3 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark);
}

.card-content p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-mid);
}

/* Progress Indicator */
.progress-indicator {
  margin-bottom: var(--spacing-sm);
}

.progress-bar {
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 3px;
  margin-bottom: 5px;
}

.progress-indicator span {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
}

/* Project Stats */
.project-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
  margin-top: auto;
  padding-top: var(--spacing-sm);
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.project-stats div {
  font-size: var(--font-size-sm);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  transition: all var(--transition-normal);
  padding: 1rem 0;
  background-color: #7a7a7a;
}

.header.scrolled {
  background-color: var(--color-dark);
  box-shadow: var(--shadow-md);
  padding: 0.5rem 0;
}

.navbar-brand {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  color: var(--color-light);
}

.navbar-dark .navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1px;
  padding: 0.5rem 1rem;
  transition: all var(--transition-fast);
}

.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link:focus {
  color: var(--color-light);
}

/* Hero Section */
.hero-section {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--color-light);
  padding-top: 150px;
  padding-bottom: var(--spacing-xl);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-overlay);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  text-align: left;
}

.hero-content h1 {
  margin-bottom: 1rem;
  color: var(--color-light);
}

.hero-content .subtitle {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: calc(1rem + 0.5vw);
  margin-bottom: var(--spacing-md);
  color: var(--color-light);
}

.hero-content p {
  font-size: calc(0.9rem + 0.3vw);
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
}

/* Portfolio Section */
.portfolio-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light);
}

/* Research Section */
.research-section {
  padding: var(--spacing-xl) 0;
  background-color: #f8f9fa;
}

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

.accordion-button {
  font-family: var(--font-heading);
  font-weight: 700;
  background-color: var(--color-light);
  color: var(--color-dark);
}

.accordion-button:not(.collapsed) {
  background-color: rgba(255, 77, 0, 0.1);
  color: var(--color-primary);
}

.accordion-button:focus {
  box-shadow: none;
  border-color: var(--color-primary);
}

/* Projects Section */
.projects-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light);
}

/* Clientele Section */
.clientele-section {
  padding: var(--spacing-xl) 0;
  background-color: #f8f9fa;
}

.client-logo {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
}

.client-logo img {
  max-width: 150px;
  max-height: 80px;
  margin: 0 auto var(--spacing-sm);
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all var(--transition-normal);
}

.client-logo:hover img {
  filter: grayscale(0);
  opacity: 1;
}

.client-logo p {
  font-size: var(--font-size-sm);
  margin-bottom: 0;
}

/* External Resources Section */
.external-resources-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light);
}

.resource-card {
  padding: var(--spacing-md);
  height: 100%;
}

.resource-card h3 {
  margin-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: var(--spacing-sm);
}

.resource-card ul {
  padding-left: 1.25rem;
  margin-bottom: 0;
}

.resource-card li {
  margin-bottom: var(--spacing-sm);
}

.resource-card a {
  color: var(--color-secondary);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.resource-card a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Community Section */
.community-section {
  padding: var(--spacing-xl) 0;
  background-color: #f8f9fa;
}

.community-image {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.community-image img {
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-lg);
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.community-content h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

.community-stats {
  margin-top: var(--spacing-md);
}

.stat-item {
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0;
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-mid);
  margin-top: 0.25rem;
}

/* Instructors Section */
.instructors-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light);
}

.position {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

/* Blog Section */
.blog-section {
  padding: var(--spacing-xl) 0;
  background-color: #f8f9fa;
}

.post-date {
  font-size: var(--font-size-sm);
  color: var(--color-mid);
  margin-bottom: var(--spacing-xs);
}

.blog-section .btn {
  margin-top: var(--spacing-sm);
}

/* Press Section */
.press-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light);
}

.press-logo {
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100%;
}

.press-logo img {
  max-width: 150px;
  max-height: 80px;
  margin: 0 auto var(--spacing-sm);
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all var(--transition-normal);
}

.press-logo:hover img {
  filter: grayscale(0);
  opacity: 1;
}

.press-logo p {
  font-size: var(--font-size-sm);
  font-style: italic;
  margin-bottom: 0;
}

/* Testimonials Section */
.testimonials-section {
  padding: var(--spacing-xl) 0;
  background-color: #f8f9fa;
}

.testimonial-card {
  padding: var(--spacing-md);
}

.testimonial-image {
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary);
  box-shadow: var(--shadow-md);
}

.testimonial-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.testimonial-text p {
  font-style: italic;
  position: relative;
  margin-bottom: var(--spacing-md);
}

.testimonial-text p:before,
.testimonial-text p:after {
  content: '"';
  font-size: 1.5rem;
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 700;
}

.testimonial-text p:after {
  content: '"';
}

.testimonial-text h4 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--color-light);
}

.contact-info h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

.contact-details {
  margin: var(--spacing-md) 0;
}

.contact-details p {
  margin-bottom: var(--spacing-sm);
}

.social-links p {
  margin-bottom: var(--spacing-sm);
}

.social-icons {
  display: flex;
  gap: var(--spacing-sm);
}

.social-link {
  display: inline-block;
  padding: 0.5rem 1rem;
  color: var(--color-dark);
  border: 2px solid var(--color-dark);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-dark);
  color: var(--color-light);
  text-decoration: none;
}

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

.contact-form h3 {
  margin-bottom: var(--spacing-md);
  color: var(--color-dark);
}

/* Footer */
.footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-xl) 0;
}

.footer h3 {
  color: var(--color-light);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.footer h3:after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-primary);
  position: absolute;
  bottom: 0;
  left: 0;
}

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

.footer-nav li {
  margin-bottom: 0.5rem;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.8);
  transition: all var(--transition-fast);
}

.footer-nav a:hover {
  color: var(--color-light);
  text-decoration: none;
  padding-left: 5px;
}

.social-links-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.social-links-footer a {
  color: rgba(255, 255, 255, 0.8);
  margin-right: var(--spacing-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.social-links-footer a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.newsletter h4 {
  font-size: 1rem;
  color: var(--color-light);
  margin-bottom: var(--spacing-sm);
}

.newsletter-form {
  display: flex;
  flex-direction: column;
}

.newsletter-form .form-control {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-light);
  margin-bottom: var(--spacing-sm);
}

.newsletter-form .btn {
  align-self: flex-start;
}

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

.success-page h1 {
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

.success-page p {
  margin-bottom: var(--spacing-md);
  max-width: 600px;
}

/* Privacy and Terms Pages */
.privacy-page, 
.terms-page {
  padding-top: 100px;
  padding-bottom: var(--spacing-xl);
  background-color: var(--color-light);
}

.privacy-page h1, 
.terms-page h1 {
  margin-bottom: var(--spacing-lg);
}

.privacy-page h2, 
.terms-page h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

/* Media Queries */
@media (max-width: 991.98px) {
  .navbar-collapse {
    background-color: var(--color-dark);
    padding: 1rem;
    margin-top: 0.5rem;
    border-radius: var(--border-radius-sm);
  }

  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  .hero-content p {
    margin: 0 auto var(--spacing-md);
  }

  .btn-group {
    justify-content: center;
  }
  
  .community-image {
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 767.98px) {
  .card-image {
    height: 200px;
  }

  .project-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575.98px) {
  .adaptive-typo {
    font-size: calc(1.5rem + 1vw);
  }

  .section-title {
    font-size: 1.5rem;
  }

  .card-brutalism {
    margin-bottom: var(--spacing-md);
  }
}

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

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.fade-in {
  animation: fadeIn var(--transition-slow) forwards;
}

.slide-up {
  opacity: 0;
  animation: slideUp var(--transition-slow) forwards;
}

/* Stagger animations on load */
.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }