body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 0;
  padding: 0;
}

header {
  background-color: #1b5e20;
  color: white;
  padding: 20px;
  text-align: center;
}

nav {
  background: #388e3c;
  text-align: center;
  padding: 10px;
}

nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  background-color: #c8e6c9;
  padding: 40px;
  text-align: center;
}

.content {
  padding: 20px;
}

.video {
  text-align: center;
  margin-top: 20px;
}

footer {
  background-color: #1b5e20;
  color: white;
  text-align: center;
  padding: 10px;
  margin-top: 20px;
}

/* Small screens (phones) */
@media screen and (max-width: 600px) {
  header, nav, .hero, .content, footer {
    padding: 10px;
  }

  .hero h1 {
    font-size: 20px;
  }

  .video iframe {
    width: 100%;
    height: auto;
  }

  nav a {
    display: block;
    margin: 10px 0;
  }
}

/* Tablets */
@media screen and (max-width: 992px) {
  .video iframe {
    width: 100%;
  }
}

.video-container {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 ratio */
  height: 0;
  overflow: hidden;
  max-width: 100%;
  margin: auto;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}