/* Base Variables */
:root {
  --primary-color: #007bff;
  --primary-dark: #0056b3;
  --primary-light: #e6f2ff;
  --secondary-color: #6c757d;
  --secondary-dark: #495057;
  --secondary-light: #e9ecef;
  --success-color: #28a745;
  --danger-color: #dc3545;
  --warning-color: #ffc107;
  --info-color: #17a2b8;
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --medium-gray: #dee2e6;
  --dark-gray: #343a40;
  --black: #000000;
  
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-light: #f8f9fa;
  
  --border-radius: 4px;
  --border-radius-lg: 8px;
  --transition-speed: 0.3s;
  --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  --gradient-overlay: linear-gradient(to bottom, rgba(0,0,0,0.5), rgba(0,0,0,0.7));
  
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  
  --font-heading: 'Roboto', sans-serif;
  --font-body: 'Lato', sans-serif;
  --font-size-base: 1rem;
  --font-size-sm: 0.875rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3rem;
  
  --container-max-width: 1200px;
  --container-padding: 1rem;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

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

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

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

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

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

/* Section Styles */
.section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  margin: var(--spacing-sm) auto 0;
  border-radius: var(--border-radius);
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius);
  text-align: center;
  font-weight: 600;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
  text-decoration: none;
  border: 2px solid transparent;
  box-shadow: var(--box-shadow);
}

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

.primary-btn:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--box-shadow-lg);
  color: var(--white);
  text-decoration: none;
}

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

.secondary-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--box-shadow-lg);
  text-decoration: none;
}

button, input[type='submit'] {
  font-family: var(--font-heading);
  cursor: pointer;
  transition: all var(--transition-speed) ease;
}

/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-speed) ease;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo a {
  font-family: var(--font-heading);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.logo a:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.navigation {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
}

.nav-list li {
  margin-left: var(--spacing-lg);
}

.nav-list a {
  font-family: var(--font-heading);
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
  position: relative;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-speed) ease;
}

.nav-list a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

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

.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
}

.burger-menu span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--text-primary);
  border-radius: 3px;
  transition: all var(--transition-speed) ease;
}

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

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

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: var(--spacing-xl) 0;
}

.hero-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-lg);
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out 0.2s;
  animation-fill-mode: both;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease-out 0.4s;
  animation-fill-mode: both;
}

.statistics-widgets {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  animation: fadeInUp 1s ease-out 0.6s;
  animation-fill-mode: both;
}

.stat-widget {
  text-align: center;
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(5px);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  min-width: 120px;
}

.stat-number {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--white);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--white);
}

/* Methodology Section */
.methodology {
  background-color: var(--light-gray);
}

.methodology-steps {
  display: grid;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.methodology-step {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

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

.step-number {
  display: inline-block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.progress-indicator {
  margin-top: var(--spacing-md);
  height: 6px;
  background-color: var(--medium-gray);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: 3px;
  transition: width 1s ease;
}

.methodology-image {
  text-align: center;
  margin: 0 auto;
}

.methodology-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
  margin: 0 auto;
}

/* Innovation Section */
.innovation {
  background-color: var(--white);
}

.innovation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

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

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

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

.card-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  width: 100%;
}

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

.read-more {
  display: inline-block;
  margin-top: var(--spacing-md);
  color: var(--primary-color);
  font-weight: 600;
  position: relative;
  padding-right: 20px;
}

.read-more::after {
  content: '→';
  position: absolute;
  right: 0;
  transition: transform var(--transition-speed) ease;
}

.read-more:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

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

/* Case Studies Section */
.case-studies {
  background-color: var(--light-gray);
}

.case-studies-slider {
  overflow: hidden;
}

.case-study-item {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--box-shadow);
  display: flex;
  flex-direction: column;
}

.case-image {
  height: 350px;
  overflow: hidden;
}

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

.case-study-item:hover .case-image img {
  transform: scale(1.05);
}

.case-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
}

.case-stats {
  display: flex;
  justify-content: space-around;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--medium-gray);
}

.stat-item {
  text-align: center;
}

.stat-value {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary-color);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* External Resources Section */
.external-resources {
  background-color: var(--white);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.resource-card {
  background-color: var(--light-gray);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

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

.resource-link {
  display: inline-block;
  margin-top: var(--spacing-md);
  color: var(--primary-color);
  font-weight: 600;
  position: relative;
  padding-right: 20px;
}

.resource-link::after {
  content: '→';
  position: absolute;
  right: 0;
  transition: transform var(--transition-speed) ease;
}

.resource-link:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.resource-link:hover::after {
  transform: translateX(5px);
}

/* News Section */
.news {
  background-color: var(--white);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.news-date {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

/* Contact Section */
.contact {
  background-color: var(--light-gray);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

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

.map-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-form-container {
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

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

.form-group label {
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

.submit-btn {
  align-self: flex-start;
  margin-top: var(--spacing-sm);
}

/* Footer */
.footer {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-about p {
  color: var(--text-light);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

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

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

.social-links a {
  color: var(--text-light);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
  font-weight: 600;
}

.social-links a:hover {
  color: var(--primary-color);
  text-decoration: none;
  transform: translateY(-3px);
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.newsletter-form input {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-light);
  font-size: var(--font-size-sm);
}

/* Privacy & Terms Pages */
.privacy-content,
.terms-content {
  padding-top: 100px;
}

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

.success-container {
  max-width: 600px;
  text-align: center;
  padding: var(--spacing-xl);
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Media Queries */
@media (max-width: 1024px) {
  :root {
    --font-size-4xl: 2.5rem;
    --font-size-3xl: 2rem;
    --font-size-2xl: 1.75rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .case-study-item {
    flex-direction: column;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .navigation {
    display: none;
  }
  
  .burger-menu {
    display: flex;
  }
  
  .hero-content {
    text-align: center;
    padding: var(--spacing-lg) 0;
  }
  
  .hero-cta {
    justify-content: center;
    align-items: center;
  }
  
  .statistics-widgets {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --font-size-2xl: 1.5rem;
    --font-size-xl: 1.25rem;
  }
  
  .statistics-widgets {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .case-stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}