:root {
  --primary: #2c3e50;
  --secondary: #3498db;
  --accent: #e74c3c;
  --light: #ecf0f1;
  --dark: #2c3e50;
  --text: #333;
}

body {
  font-family: 'Open Sans', sans-serif;
  color: var(--text);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
}

/* Navigation */
.navbar {
  background-color: var(--primary);
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
}

.navbar .nav-link {
  color: var(--light);
  font-weight: 600;
  margin: 0 1rem;
  transition: color 0.3s;
}

.navbar .nav-link:hover {
  color: var(--secondary);
}

/* Section Styling */
.section {
  padding: 5rem 0;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: var(--secondary);
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('../images/jumbotron.jpg') center/cover no-repeat;
  color: white;
  padding: 8rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Technology Section */
.tech-explanation {
  background-color: var(--light);
}

.tech-diagram {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Footer */
footer {
  background-color: var(--dark);
  color: white;
  padding: 2rem 0;
  text-align: center;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}