/* General layout for dual containers */
.dualcontainer {
  width: 100%;
  overflow: auto;
  margin: 20px 0;
}

.dualcontainer div {
  width: 50%;
  float: left;
  text-align: center;
}

/* Body styling */
body {
  text-align: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
}

/* Navigation bar */
.navbar {
  background-color: lightblue;
  padding: 12px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  text-align: center;
}

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #ADD8E6;
}

ul li {
  float: left;
}

ul li a {
  display: block;
  color: black;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

ul li a:hover {
  background-color: #7ED4E6;
}

ul {
  position: fixed;
  top: 0;
  width: 100%;
}

ul li a.active {
  background-color: #04AA6D;
}

.navbar p {
  margin: 0;
}

.navbar a {
  text-decoration: none;
  color: #000;
  margin: 0 15px;
  font-weight: bold;
  font-size: 16px;
  transition: color 0.3s ease, border-bottom 0.3s ease;
  padding-bottom: 2px;
}

.navbar a:hover {
  color: #004080;
  border-bottom: 2px solid #004080;
}

/* Headings */
h1 {
  font-family: Arial, sans-serif;
  font-size: 24px;
  color: blue;
  margin-top: 20px;
}

/* Paragraphs */
p {
  font-size: 16px;
  margin: 10px 0;
}

/* Buttons */
button {
  background-color: #007BFF;
  color: white;
  border: none;
  padding: 10px 18px;
  font-size: 14px;
  cursor: pointer;
  border-radius: 4px;
  margin: 5px;
}

button:hover {
  background-color: #0056b3;
}

/* Embedded content */
embed, iframe, img {
  border: 2px solid #ccc;
  border-radius: 6px;
  margin: 10px 0;
}

/* Playlist section */
iframe.youtube {
  margin-top: 20px;
  border: none;
}