body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: url('../images/logo-bg.png') no-repeat center center fixed;
  background-size: 400px;
  background-color: #ffffff;
  color: #222;
}

.overlay {
  background-color: rgba(255, 255, 255, 0.94);
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  text-align: center;
  margin-top: 20px;
}

.main-logo-large {
  width: 400px;
  max-width: 90%;
  display: block;
  margin: 0 auto;
}

.slogan {
  font-size: 1.3em;
  font-weight: bold;
  margin-top: 10px;
  color: #333;
}

nav {
  text-align: center;
  margin: 30px 0;
}

nav a {
  margin: 0 10px;
  text-decoration: none;
  color: #006633;
  font-weight: bold;
}

main {
  flex-grow: 1;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

footer {
  text-align: center;
  margin-top: 40px;
  font-size: 0.9em;
  color: #444;
}

footer a {
  text-decoration: none;
  color: #444;
  margin: 0 8px;
}