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

.app-container {
  display: flex;
}

.sidebar {
  width: 220px;
  background-color: #f1f1f1;
  padding: 10px;
  height: 100vh;
}

.sidebar button {
  background: none;
  border: none;
  cursor: pointer;
  margin-bottom: 10px;
}

.sidebar ul {
  list-style: none;
  padding: 0;
}

.sidebar li {
  margin: 10px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

main {
  flex-grow: 1;
  padding: 20px;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: white;
  padding: 10px;
  border-bottom: 1px solid #ccc;
}

.logo {
  display: flex;
  align-items: center;
  gap: 5px;
}

.search-bar {
  display: flex;
  gap: 5px;
}

.search-bar input {
  padding: 5px;
  width: 250px;
}

.search-bar button {
  background-color: #ccc;
  border: none;
  padding: 6px 10px;
  cursor: pointer;
}

.top-icons {
  display: flex;
  gap: 10px;
}

.video-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
}

.video-item {
  background: white;
  padding: 10px;
  border: 1px solid #ddd;
  width: 300px;
}

.video-item iframe {
  width: 100%;
  height: 170px;
}

.video-item h3 {
  font-size: 16px;
  margin: 10px 0 5px;
}


.video-detail {
  margin-top: 20px;
}

.video-player {
  background: white;
  padding: 20px;
  border: 1px solid #ddd;
}

.video-player iframe {
  width: 100%;
  height: 400px;
  margin-bottom: 15px;
}

.video-player h2 {
  margin: 0 0 10px;
  font-size: 22px;
}

.video-player p {
  margin: 8px 0;
  color: #333;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: black;
}

.logo h1 {
  margin-left: 8px;
  font-size: 22px;
}

.sidebar ul li a {
  display: flex;
  align-items: center;
  color: black;
  text-decoration: none;
  padding: 10px;
}

.sidebar ul li a:hover {
  background-color: #f0f0f0;
}