:root {
  --primary-color: #5A7247;
  --secondary-color: #0047AB;
  --background-color: #F5F5F5;
  --footer-bg-color: #333333;
  --button-color: #0047AB;
  --section-bg-1: #E8F4F8;
  --section-bg-2: #FFFFFF;
  --section-bg-3: #F0F7EE;
  --font-primary: 'Open Sans', sans-serif;
  --font-secondary: 'Montserrat', sans-serif;
  --transition-base: all 0.3s ease;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --radius-base: 8px;
}

body {
  font-family: var(--font-primary);
  background-color: var(--background-color);
  color: #333;
  line-height: 1.7;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  color: var(--primary-color);
  letter-spacing: -0.02em;
  margin-top: 0;
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  font-weight: 500;
}

p {
  margin-bottom: 1.5em;
  max-width: 65ch;
}

a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: var(--transition-base);
}

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

.section {
  padding: 5rem 0;
}

.section-bg-1 {
  background-color: var(--section-bg-1);
}

.section-bg-2 {
  background-color: var(--section-bg-2);
}

.section-bg-3 {
  background-color: var(--section-bg-3);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-secondary);
  font-weight: 600;
  background-color: var(--button-color);
  color: white;
  border-radius: var(--radius-base);
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

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

.card {
  background-color: white;
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-base);
}

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

.navbar {
  background-color: white;
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

.nav-link {
  padding: 0.5rem 1rem;
  font-weight: 600;
  color: var(--primary-color);
}

.nav-link:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.footer {
  background-color: var(--footer-bg-color);
  color: white;
  padding: 3rem 0;
}

.footer a {
  color: white;
}

.footer a:hover {
  color: var(--section-bg-1);
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}