/* Tailwind-inspired utility classes */
:root {
  /* Primary Colors */
  --primary-blue: #1e40af;
  --dark-blue: #1e3a8a;
  --light-blue: #60a5fa;
  
  /* Secondary Colors */
  --secondary-teal: #0d9488;
  --light-teal: #5eead4;
  --dark-teal: #0f766e;
  
  /* Accent Colors */
  --accent-amber: #f59e0b;
  --light-amber: #fcd34d;
  --dark-amber: #d97706;
  
  /* Neutral Colors */
  --background-light: #f3f4f6;
  --text-dark: #111827;
  --text-light: #f9fafb;
  --text-muted: #6b7280;
  
  /* UI Elements */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  /* Transitions */
  --transition-fast: 0.15s 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: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --transition-speed: 0.3s;
}

/* Base styles */
body {
  font-family: 'Inter', 'Segoe UI', Roboto, Arial, sans-serif;
  margin: 0;
  padding: 0;
  color: var(--text-dark);
  background-color: var(--background-light);
  line-height: 1.6;
  font-size: 1.0625rem; /* Increased base font size for better readability */
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  letter-spacing: 0.01em; /* Subtle letter spacing for headings */
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--primary-blue);
}

h3 {
  font-size: 1.625rem;
  font-weight: 600;
  color: var(--dark-blue);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  letter-spacing: -0.01em;
}

h4 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--secondary-teal);
}

/* Section spacing */
section {
  margin-bottom: var(--space-2xl); /* Increased spacing between sections */
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

section:last-of-type {
  border-bottom: none;
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-lg);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--secondary-teal);
  border-radius: 3px;
}

/* Header and Navigation */
header {
  background: url('../../assets/images/classroom-header.jpg') center/cover no-repeat;
  background-color: linear-gradient(90deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
  color: var(--text-light);
  padding: 1rem 0; /* increase height so nav & title have room */
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.course-title {
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  color: #333333; /* Dark gray */
  text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.8); /* White drop shadow */
  white-space: nowrap;
  margin: 0;
}

.nav-container {
  display: flex;
  justify-content: flex-end;
  overflow-x: visible; /* Changed from auto to visible to prevent scrollbar */
  flex: 1;
}

.nav-buttons {
  display: flex;
  gap: 0.3rem;
  margin-right: 1rem; /* Add margin to prevent scrollbar */
}

.nav-button {
  /* Match .module-btn sizing and look */
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: #fff;
  color: #000;
  border: none;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
}

.nav-button:hover {
  background-color: var(--light-teal);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.nav-button.active {
  background-color: #f59e0b;
  color: #000;
  box-shadow: 0 0 0 2px #000, 0 4px 6px rgba(0, 0, 0, 0.1);
  transform: scale(1.1);
  border: none;
}

.nav-button::after {
  content: attr(data-title);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--transition-speed) ease;
  bottom: -2.5rem;
  font-size: 0.8rem;
}

.nav-button:hover::after {
  opacity: 1;
}

.module-nav {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
  position: relative;
}

.module-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: #fff;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
}

.module-btn::after {
  content: attr(data-title);
  position: absolute;
  bottom: -2.5rem;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background-color: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 0.4rem 0.8rem;
  border-radius: 0.25rem;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s ease;
  pointer-events: none;
  z-index: 20;
}

.module-btn:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

.module-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background-color: var(--light-teal);
}

.module-btn.active {
  background-color: #f59e0b;
  color: #000;
  box-shadow: 0 0 0 2px #000, 0 4px 6px rgba(0, 0, 0, 0.1);
  transform: scale(1.1);
}

.module.nav-button {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  border: 2px solid transparent;
}

.module.nav-button::after {
  content: attr(data-title);
  position: absolute;
  bottom: -2.5rem;
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background-color: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 0.5rem 0.9rem;
  border-radius: 0.25rem;
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
  z-index: 20;
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--secondary-teal);
}

.module.nav-button:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

.module.nav-button:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-md);
  background-color: var(--light-teal);
  color: var(--dark-teal);
}

.module.nav-button.active {
  background-color: var(--accent-amber);
  color: #000;
  box-shadow: 0 0 0 2px #000, var(--shadow-md);
  transform: scale(1.15);
  animation: pulseActive 2s infinite alternate;
}

@keyframes pulseActive {
  0% {
    box-shadow: 0 0 0 2px #000, var(--shadow-md);
  }
  100% {
    box-shadow: 0 0 0 2px #000, 0 0 12px rgba(245, 158, 11, 0.6);
  }
}

/* Main content */
main {
  padding: 2rem 0;
  min-height: calc(100vh - 180px); /* Ensure content area pushes footer down */
  animation: fadeIn 0.5s ease-in-out;
}

/* Module Navigation Controls */
.module-navigation {
  display: flex;
  justify-content: space-between;
  margin: 3rem 0 1.5rem;
}

.module-nav-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.25rem;
  background-color: var(--primary-blue);
  color: white;
  text-decoration: none;
  border-radius: 0.375rem;
  font-weight: 500;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}

.module-nav-btn:hover {
  background-color: var(--secondary-teal);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.module-nav-btn.prev::before {
  content: '←';
  margin-right: 0.5rem;
}

.module-nav-btn.next::after {
  content: '→';
  margin-left: 0.5rem;
}

.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 3rem;
  height: 3rem;
  background-color: var(--primary-blue);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 100;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--secondary-teal);
  transform: translateY(-4px);
}

/* Footer */
footer {
  background-color: white;
  color: #333333; /* Dark gray text for good contrast on white */
  padding: var(--space-xl) 0;
  margin-top: var(--space-2xl);
  border-top: 1px solid #e5e7eb; /* Light gray border for subtle separation */
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05); /* Subtle shadow for depth */
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  text-align: left;
}

.footer-column {
  display: flex;
  flex-direction: column;
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--primary-blue);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.footer-link:hover {
  color: var(--secondary-teal);
}

.social-links {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: #f3f4f6;
  color: var(--text-dark);
  transition: all var(--transition-normal);
}

.social-link:hover {
  background-color: var(--primary-blue);
  color: white;
  transform: translateY(-2px);
}

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

.newsletter-input {
  padding: 0.5rem 0.75rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.25rem 0 0 0.25rem;
  flex-grow: 1;
}

.newsletter-button {
  background-color: var(--primary-blue);
  color: white;
  border: none;
  padding: 0.5rem 0.75rem;
  border-radius: 0 0.25rem 0.25rem 0;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.newsletter-button:hover {
  background-color: var(--secondary-teal);
}

.copyright {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid #e5e7eb;
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Learning Path Visualization */
.learning-path {
  background-color: white;
  border-radius: 0.625rem;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.learning-path-progress {
  margin-bottom: var(--space-md);
}

.progress-bar {
  height: 8px;
  background-color: #e5e7eb;
  border-radius: 4px;
  margin-bottom: var(--space-sm);
  overflow: hidden;
}

.progress-indicator {
  height: 100%;
  background: linear-gradient(90deg, var(--secondary-teal), var(--primary-blue));
  border-radius: 4px;
  transition: width 0.5s ease;
}

.module-progress {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.estimated-time {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.skills-gained h4 {
  margin-top: var(--space-sm);
  margin-bottom: var(--space-sm);
  color: var(--text-dark);
  font-size: 1rem;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.skill-tag {
  background-color: rgba(13, 148, 136, 0.1);
  color: var(--secondary-teal);
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Key Takeaways Section */
.key-takeaways {
  background-color: rgba(30, 64, 175, 0.05);
  border-radius: 0.625rem;
  padding: var(--space-lg);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-xl);
  border-left: 4px solid var(--primary-blue);
}

.key-takeaways h3 {
  color: var(--primary-blue);
  margin-top: 0;
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

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

.takeaway-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.takeaway-icon {
  color: var(--secondary-teal);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.module-header {
  margin-top: var(--space-xl); /* push module heading below header */
}

.module-title {
  font-size: 1.75rem; /* slightly smaller to avoid crowding */
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
  font-weight: 700;
}

.module-subtitle {
  font-size: 1.25rem;
  color: var(--secondary-blue);
  margin-top: 0;
}

/* Cards and sections */
.card {
  background-color: #fff;
  border-radius: 0.625rem;
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid rgba(0, 0, 0, 0.03);
  overflow: hidden;
  position: relative;
}

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

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--secondary-teal);
  opacity: 0.7;
}

.section-title {
  font-size: 1.5rem;
  color: var(--primary-blue);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--light-blue);
}

/* Interactive elements */
.interactive-chart {
  background: white;
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 1.5rem 0;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  position: relative;
}

.interactive-chart canvas {
  width: 100% !important;
  height: 100% !important;
}

.chart-placeholder {
  color: var(--text-dark);
  text-align: center;
  opacity: 0.7;
}

/* Examples section */
.examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 1.5rem 0;
}

.example-card {
  background: white;
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-speed) ease;
  border-left: 4px solid var(--accent-blue);
}

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

.example-title {
  font-weight: 600;
  color: var(--primary-blue);
  margin-bottom: 0.5rem;
}

/* Discussion prompts */
.prompts-list {
  list-style-type: none;
  padding: 0;
}

.prompt-item {
  background: rgba(147, 197, 253, 0.1);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
  border-left: 3px solid var(--accent-blue);
  transition: transform var(--transition-speed) ease;
}

.prompt-item:hover {
  transform: translateX(5px);
}

/* Quiz Styles */
.quiz-container {
  margin-top: 1rem;
}

.quiz-question {
  margin-bottom: 1.25rem;
  padding: 1rem;
  background-color: rgba(255, 255, 255, 0.7);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  padding: 0.375rem;
  border-radius: 0.25rem;
  transition: all 0.2s ease;
}

.quiz-option:hover {
  background-color: rgba(94, 234, 212, 0.1);
}

.quiz-button {
  background-color: var(--primary-blue);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 1rem;
  box-shadow: var(--shadow-sm);
}

.quiz-button:hover {
  background-color: var(--secondary-teal);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.quiz-answer {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background-color: rgba(30, 64, 175, 0.1);
  border-left: 4px solid var(--primary-blue);
  border-radius: 0.25rem;
  font-size: 0.95rem;
}

.quiz-answer.correct {
  background-color: rgba(16, 185, 129, 0.1);
  border-left: 4px solid #10b981;
}

.quiz-answer.incorrect {
  background-color: rgba(239, 68, 68, 0.1);
  border-left: 4px solid #ef4444;
}

/* Call to action */
.cta-container {
  background: linear-gradient(to right, rgba(55, 65, 81, 0.85), rgba(148, 163, 184, 0.85)); /* Dark grey to light bluish grey gradient with semi-transparency */
  color: var(--text-light);
  border-radius: 0.75rem;
  padding: var(--space-xl);
  margin-top: var(--space-2xl);
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 1px solid transparent;
  backdrop-filter: blur(4px); /* Adds a subtle blur effect behind the semi-transparent background */
  background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E"), linear-gradient(to right, rgba(55, 65, 81, 0.85), rgba(148, 163, 184, 0.85));
}

.cta-container::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, #4b5563, #6b7280, #9ca3af, #4b5563);
  border-radius: 0.6rem;
  z-index: -1;
  animation: animateGradient 4s linear infinite;
  box-shadow: 0 0 25px rgba(75, 85, 99, 0.5);
}

@keyframes animateGradient {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.cta-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: white;
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-text {
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--secondary-teal), var(--dark-teal));
  color: white;
  padding: 0.875rem 1.75rem;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  margin-top: var(--space-lg);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--dark-teal), var(--secondary-teal));
  transition: transform var(--transition-normal);
  z-index: -1;
}

.cta-button:hover::before {
  transform: translateX(100%);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
  color: white;
}

.cta-button:active {
  transform: translateY(1px);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-in-out;
}

/* Responsive design */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
  }
  
  .nav-container {
    margin-top: 1rem;
    width: 100%;
  }
  
  .examples-grid {
    grid-template-columns: 1fr;
  }
}

/* Executive Summary section */
.exec-summary {
  background-color: rgba(255, 255, 255, 0.85);
  border-left: 4px solid var(--primary-blue);
  padding: 1rem 1.5rem;
  margin-bottom: var(--space-xl);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-sm);
}

.exec-summary h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-blue);
}

.exec-summary ul {
  list-style: disc;
  margin-left: 1.25rem;
}

/* Branded footer styles */
.footer-brand {
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--primary-blue);
  margin-bottom: var(--space-xs);
  text-align: center;
}

.footer-tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  text-align: center;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.footer-contact a {
  color: var(--secondary-teal);
  text-decoration: none;
  font-weight: 500;
}

.footer-contact a:hover {
  text-decoration: underline;
}