/* Universal styles (Chrome 1+) */
body {
  font-family: Arial, sans-serif;
  background: #f8f9fa;
  color: #333;
  padding: 20px;
  margin: 0;
}

h1, h2, h3 {
  color: #222;
}

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

a:hover {
  text-decoration: underline;
}

input, textarea, button {
  padding: 8px;
  font-size: 16px;
  margin: 5px 0;
  width: 100%;
  max-width: 400px;
  box-sizing: border-box;
}

video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Progressive enhancement (Chrome 50+) */
@supports (display: flex) {
  body {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
    max-width: 500px;
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    border-radius: 10px;
  }
}