* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  background: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 10px 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: bold;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
}

nav ul li a {
  text-decoration: none;
  color: #333;
}

nav ul li a:focus,
.language-switcher a:focus,
footer ul li a:focus {
  outline: 2px solid #007bff;
  outline-offset: 2px;
}

.btn {
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
}

.btn:focus {
  outline: 2px solid #007bff;
  outline-offset: 2px;
}

.btn-primary {
  background: #007bff;
  color: white;
}

.btn-primary:hover {
  background: #0056b3;
}

.btn-secondary {
  background: #fff;
  border: 1px solid #333;
  color: #333;
}

.language-switcher {
  font-size: 14px;
}

.language-switcher a {
  text-decoration: none;
  color: #333;
}

.hero {
  background: #e6e6fa;
  padding: 50px 0;
}

.hero .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-content {
  max-width: 50%;
}

.hero-content h1 {
  font-size: 36px;
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 18px;
  margin-bottom: 20px;
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

.hero-note {
  margin-top: 20px;
  font-size: 14px;
}

.hero-demo {
  max-width: 40%;
}

#chatbot {
  background: #f9f9f9;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  font-family: Arial, sans-serif;
  border: 1px solid #ccc;
  padding: 10px;
  width: 300px;
}

#chat-container {
  height: 200px;
  overflow-y: auto;
  border-bottom: 1px solid #ccc;
  margin-bottom: 10px;
  padding: 5px;
}

#chat-container p {
  margin: 5px 0;
  padding: 2px 5px;
}

#message {
  width: 70%;
  padding: 5px;
  border-radius: 3px;
  border: 1px solid #ccc;
}

#chatbot button {
  padding: 5px 10px;
  border-radius: 3px;
  background: #007bff;
  color: white;
  border: none;
  cursor: pointer;
}

#chatbot button:hover {
  background: #0056b3;
}

.features,
.testimonials,
.pricing,
.services {
  padding: 50px 0;
  text-align: center;
}

.features h2,
.testimonials h2,
.pricing h2,
.services h2 {
  font-size: 28px;
  margin-bottom: 30px;
}

.feature-grid,
.testimonial-grid,
.pricing-grid,
.services-grid {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.feature,
.testimonial,
.pricing-plan,
.service {
  background: #f9f9f9;
  padding: 20px;
  border-radius: 5px;
  width: 30%;
}

.pricing-plan .price {
  font-size: 24px;
  font-weight: bold;
  margin: 10px 0;
}

.pricing h1,
.pricing h2 {
  margin-bottom: 30px;
}

.pricing-grid {
  gap: 30px;
}

.pricing-plan {
  padding: 30px;
}

.services h1,
.services h2,
.services h3 {
  margin-bottom: 20px;
}

.services i {
  font-size: 24px;
  vertical-align: middle;
}

.services p,
.services ul {
  margin-bottom: 15px;
}

.services ul {
  padding-left: 20px;
}

.services ul ul {
  padding-left: 30px;
}

footer {
  background: #333;
  color: white;
  padding: 20px 0;
  text-align: center;
}

footer ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 10px;
}

footer ul li a {
  color: white;
  text-decoration: none;
}

footer ul li a:hover {
  color: #007bff;
}

@media (max-width: 768px) {
  header .container {
    flex-direction: column;
    gap: 10px;
  }
  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .language-switcher {
    margin-top: 10px;
  }
  .btn {
    padding: 12px 24px;
  }
  .hero .container {
    flex-direction: column;
    text-align: center;
  }
  .hero-content,
  .hero-demo {
    max-width: 100%;
  }
  .hero-demo {
    margin-top: 20px;
  }
  .feature-grid,
  .testimonial-grid,
  .pricing-grid,
  .services-grid {
    flex-direction: column;
  }
  .feature,
  .testimonial,
  .pricing-plan,
  .service {
    width: 100%;
  }
}