body {
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  color: #222;
  background-color: #f9fdf9;
}

header {
  background-color: #d8f5e1;
  text-align: center;
  padding: 2em;
  position: relative;
}

.language-toggle {
  position: absolute;
  top: 1em;
  right: 1em;
  display: flex;
  gap: 0.5em;
}

.lang-btn {
  background-color: transparent;
  border: 2px solid #23553e;
  color: #23553e;
  padding: 0.3em 0.8em;
  cursor: pointer;
  border-radius: 20px;
  font-weight: bold;
  font-size: 0.9em;
  transition: all 0.3s ease;
}

.lang-btn:hover {
  background-color: #23553e;
  color: white;
}

.lang-btn.active {
  background-color: #23553e;
  color: white;
}

.logo-container {
  width: 100%;
  display: flex;
  justify-content: center;
  margin-bottom: 1em;
}

.logo {
  max-width: 300px;
  height: auto;
}

h1 {
  font-size: 1.8em;
  margin-bottom: 1em;
  color: #23553e;
}

.subscribe input {
  padding: 0.5em;
  font-size: 1em;
  width: 250px;
  max-width: 90%;
  margin: 0.5em;
}

.subscribe button {
  padding: 0.5em 1em;
  font-size: 1em;
  background-color: #23553e;
  color: white;
  border: none;
  cursor: pointer;
}

main {
  padding: 2em;
}

section {
  margin-bottom: 2em;
}

h2 {
  color: #23553e;
}

footer {
  text-align: center;
  padding: 1em;
  background-color: #f0f0f0;
  font-size: 0.9em;
}

.demo-link-container {
  margin: 1.5em 0;
}

.demo-button {
  display: inline-block;
  background-color: #23553e;
  color: white;
  text-decoration: none;
  padding: 0.8em 2em;
  font-size: 1.1em;
  font-weight: bold;
  border-radius: 5px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.demo-button:hover {
  background-color: #1b4030;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

/* Responsive design for mobile */
@media (max-width: 768px) {
  .language-toggle {
    position: relative;
    top: auto;
    right: auto;
    justify-content: center;
    margin-bottom: 1em;
  }
  
  .lang-btn {
    font-size: 0.8em;
    padding: 0.4em 1em;
  }
  
  header {
    padding: 1.5em 1em;
  }
  
  h1 {
    font-size: 1.5em;
  }
  
  .subscribe input {
    width: 200px;
  }
}