* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
  line-height: 1.6;
  color: #333;
}

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

header {
  background-color: #6600cc;
  color: white;
  text-align: center;
  padding: 60px 20px;
}

header h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

header p {
  font-size: 1.2rem;
}

.nav-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
}

.nav-links li a {
  color: white;
  text-decoration: none;
  font-size: 1.1rem;
  padding: 8px 16px;
  border-radius: 5px;
  transition: background-color 0.3s;
}

.nav-links li a:hover, .nav-links li a.active {
  background-color: rgba(255, 255, 255, 0.2);
}

#intro, #privacy, #terms {
  padding: 60px 0;
  text-align: center;
  background-color: #f9f9f9;
}

#intro h2, #privacy h2, #terms h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

#intro p {
  font-size: 1.1rem;
  max-width: 800px;
  margin: 0 auto;
}

#features {
  padding: 60px 0;
}

#features h2 {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 40px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.feature-item {
  text-align: center;
}

.media-container {
  position: relative;
  width: 100%;
  max-width: 300px;
  margin: 0 auto 20px;
}

.screenshot {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 20px;
  border: 2px solid #ccc;
}

.watch-screenshot {
  max-width: 200px;
  border-radius: 40px;
}

.image-placeholder {
  width: 100%;
  max-width: 300px;
  height: 600px;
  background-color: #e0e0e0;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  border: 2px solid #ccc;
}

.watch-placeholder {
  max-width: 200px;
  height: 200px;
  border-radius: 40px;
}

.image-placeholder p {
  color: #666;
  font-size: 1rem;
  text-align: center;
  padding: 20px;
}

.video-placeholder {
  width: 100%;
  max-width: 300px;
  height: 600px;
  background-color: #e0e0e0;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  border: 2px solid #ccc;
  margin-top: 10px;
}

.watch-video-placeholder {
  max-width: 200px;
  height: 200px;
  border-radius: 40px;
}

.video-placeholder[poster] {
  display: block;
}

.video-placeholder p {
  color: #666;
  font-size: 1rem;
  text-align: center;
  padding: 20px;
}

.carousel {
  position: relative;
  width: 100%;
  max-width: 300px;
  overflow: hidden;
  border-radius: 20px;
}

.watch-carousel {
  max-width: 200px;
}

.carousel-inner {
  display: flex;
  transition: transform 0.3s ease;
  width: 100%;
}

.carousel-item {
  flex: 0 0 100%;
  max-width: 300px;
  position: relative;
}

.watch-carousel .carousel-item {
  max-width: 200px;
}

.carousel-item img, .carousel-item .image-placeholder {
  width: 100%;
  height: auto;
}

.carousel-item .watch-placeholder {
  height: 200px;
}

.carousel button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(102, 0, 204, 0.7);
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
  font-size: 1.2rem;
  border-radius: 5px;
}

.carousel .carousel-prev {
  left: 10px;
}

.carousel .carousel-next {
  right: 10px;
}

.carousel button:hover {
  background-color: #6600cc;
}

.carousel-indicators {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.carousel-indicators .indicator {
  width: 10px;
  height: 10px;
  background-color: #ccc;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.3s;
}

.carousel-indicators .indicator.active {
  background-color: #6600cc;
}

.feature-item h3 {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.feature-item p {
  font-size: 1rem;
  color: #555;
}

.content-card {
  background-color: white;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  text-align: left;
}

.content-card h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
  color: #6600cc;
}

.content-card h4 {
  font-size: 1.3rem;
  margin: 15px 0 10px;
  color: #333;
}

.content-card p {
  font-size: 1rem;
  color: #555;
  margin-bottom: 10px;
}

#download {
  padding: 60px 0;
  background-color: #6600cc;
  color: white;
  text-align: center;
}

#download h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

#download p {
  font-size: 1.1rem;
  margin-bottom: 30px;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background-color: #fff;
  color: #6600cc;
  text-decoration: none;
  font-weight: bold;
  border-radius: 8px;
  transition: background-color 0.3s;
}

.btn:hover {
  background-color: #f0f0f0;
}

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

footer p {
  font-size: 0.9rem;
  margin-bottom: 10px;
}

footer .footer-note {
  font-size: 0.85rem;
  color: #ccc;
  max-width: 800px;
  margin: 0 auto 10px;
}

.footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.footer-links li a {
  color: #ccc;
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links li a:hover {
  color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
  header h1 {
      font-size: 2rem;
  }

  header p {
      font-size: 1rem;
  }

  .nav-links {
      flex-direction: column;
      gap: 10px;
  }

  #intro h2, #features h2, #download h2, #privacy h2, #terms h2 {
      font-size: 1.5rem;
  }

  .feature-grid {
      grid-template-columns: 1fr;
  }

  .download-buttons {
      flex-direction: column;
      gap: 10px;
  }

  .screenshot, .video-placeholder, .carousel, .carousel-item {
      max-width: 250px;
  }

  .watch-screenshot, .watch-video-placeholder, .watch-carousel, .watch-carousel .carousel-item, .watch-placeholder {
      max-width: 150px;
      height: 150px;
  }

  .content-card {
      padding: 15px;
  }

  .carousel-indicators .indicator {
      width: 8px;
      height: 8px;
  }
}