body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: #444;
  background-color: #f9f9f9;
}

header {
  background-color: #fff;
  padding: 15px;
  border-bottom: 1px solid #ddd;
}

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

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

.language-toggle button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.hero {
  text-align: center;
  padding: 60px 20px;
  background: #f1f5fb;
}

.hero h2 {
  font-size: 28px;
  margin-bottom: 10px;
}

.download-buttons {
  margin-top: 20px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  margin: 10px;
  border-radius: 8px;
  text-decoration: none;
  background-color: #0078ff;
  color: white;
  font-weight: bold;
}

.features,
.how-to {
  padding: 10px 20px;
  background: white;
  margin: 10px auto;
  max-width: 800px;
  border-radius: 8px;
}

footer {
  text-align: center;
  padding: 20px;
  color: #999;
}

.screenshots {
  padding: 10px 20px;
  background: #fff;
  margin: 20px auto;
  max-width: 800px;
  border-radius: 8px;
}

.screenshots h3 {
  text-align: center;
  margin-bottom: 20px;
}

.screenshot-gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
}

.screenshot-gallery img {
  width: 100%;
  max-width: 240px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.features h3,
.how-to h3,
.screenshots h3 {
  text-align: left;
  margin-bottom: 15px;
  font-size: 22px;
  font-weight: bold;
}