/* General reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  color: #333;
}

header {
  background-color: #2d2d2d;
  color: white;
  padding: 10px 20px;
  text-align: center;
  font-size: 24px;
  font-weight: bold;
}

main {
  display: flex;
  margin: 20px;
}

.video-and-chat {
  flex: 3;
  margin-right: 20px;
}

.video {
  background-color: black;
  height: 360px;
  width: 640px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}

.chat {
  background-color: #fff;
  border: 1px solid #ccc;
  height: 300px;
  padding: 10px;
  overflow-y: scroll;
}

.sidebar {
  flex: 1;
  background-color: #fff;
  border: 1px solid #ccc;
  padding: 10px;
}

.channel-info {
  margin-bottom: 20px;
}

.channel-info h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.sidebar ul {
  list-style: none;
}

.sidebar li {
  margin-bottom: 10px;
}

input[type="text"] {
  width: calc(100% - 20px);
  padding: 5px;
}

button {
  margin-top: 5px;
  padding: 5px 10px;
  background-color: #4CAF50;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background-color: #45a049;
}

footer {
  text-align: center;
  padding: 15px;
  background-color: #2d2d2d;
  color: white;
  margin-top: 20px;
}