body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f9;
  color: #333;
}

.header, .footer {
  text-align: center;
  padding: 20px;
}

.main {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 80vh;
}

.input-container {
  display: flex;
  gap: 10px;
}

input {
  width: 300px;
  padding: 10px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

button {
  padding: 10px 15px;
  border-radius: 5px;
  border: none;
  background: #007bff;
  color: #fff;
  cursor: pointer;
  font-size: 16px;
}

button:hover {
  background: #0056b3;
}

.examples {
  font-size: 14px;
  text-align: center;
  margin-top: 20px;
}

.video-container {
  margin-top: 30px;
  text-align: center;
}

.video-container.hidden {
  display: none;
}

.video-container iframe {
  width: 1280px;
  height: 720px;
  border: 0;
}

footer a {
  color: #007bff;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}