body {
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  font-family: Arial, Helvetica, sans-serif;
  color: #000;
  font-size: 13px;
}

#container {
  width: 960px; /* make page wider, like old YouTube layouts */
  margin: 0 auto;
}

#header {
  background: #f8f8f8;
  padding: 10px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #ccc;
}

#logo {
  height: 40px;
  margin-right: 20px;
}

#search-area {
  flex: 1;
  display: flex;
}

#search-box {
  flex: 1;
  padding: 4px;
  font-size: 14px;
  border: 1px solid #888;
  margin-right: 5px;
}

#search-btn {
  padding: 5px 8px;
  font-size: 14px;
}

#nav {
  background: #e5e5e5;
  padding: 8px 10px;
  border-bottom: 1px solid #ccc;
}

#nav a {
  text-decoration: none;
  color: #000;
  margin-right: 5px;
}

#main {
  display: flex;
  margin-top: 10px;
}

#content {
  flex: 3;
  padding-right: 30px;
}

#sidebar {
  flex: 1;
  background: #f8f8f8;
  border: 1px solid #ccc;
  padding: 10px;
  height: fit-content;
}

#sidebar h4 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 14px;
}

ul {
  list-style: none;
  padding-left: 0;
}

ul li {
  margin-bottom: 8px;
}

h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

video {
  border: 1px solid #ccc;
  margin-bottom: 8px;
  display: block;
}

#footer {
  margin-top: 20px;
}

.footer-text {
  text-align: center;
  font-size: 12px;
  color: #666;
  padding: 10px 0;
}