:root {
  --primary: #2e7d32;
  --primary-dark: #1b5e20;
  --bg-color: #f4f7f4;
  --card-bg: #ffffff;
  --text-color: #2c3e50;
  --border-color: #e0e0e0;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  background-color: var(--bg-color);
  color: var(--text-color);
}

.navbar {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar .logo {
  font-weight: bold;
  font-size: 1.2rem;
  color: var(--primary-dark);
}

.navbar nav a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
}

.navbar nav a:hover {
  color: var(--primary);
}

.hero {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  text-align: center;
  padding: 4rem 1rem;
}

.hero h1 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  background-color: #ffffff;
  color: var(--primary-dark);
  padding: 0.75rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 1rem;
  border: none;
  cursor: pointer;
}

.btn:hover {
  background-color: #e8f5e9;
}

.container {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  margin-bottom: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

h1, h2, h3 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
}

footer {
  background-color: #1c2520;
  color: #a0aec0;
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 3rem;
}

footer a {
  color: #cbd5e0;
  text-decoration: none;
}

footer a:hover {
  color: white;
}

.footer-links {
  margin-top: 0.5rem;
}