body {
  margin: 0;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0f1512;
  color: #e6efe9;
  line-height: 1.6;
}

header {
  background: linear-gradient(90deg, #1a3a2a, #0f1512);
  padding: 12px 20px;
}

nav a {
  color: #cfe8da;
  text-decoration: none;
  margin-right: 15px;
  font-size: 14px;
}

nav a:hover {
  text-decoration: underline;
}

main {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
}

h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

p {
  color: #b7c9be;
}

a {
  color: #8be0b4;
}

.button {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 16px;
  background: #1f5f3f;
  color: white;
  text-decoration: none;
  border-radius: 6px;
}

.button.secondary {
  background: transparent;
  border: 1px solid #3a6f56;
}

footer {
  margin-top: 60px;
  padding: 20px;
  font-size: 13px;
  text-align: center;
  color: #8aa79a;
}