body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #121212;
  color: white;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.player-container {
  background-color: #000;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

video {
  width: 100%;
  max-height: 70vh;
  display: block;
}

#channel-info {
  padding: 10px 15px;
  background: #1e1e1e;
  color: #fff;
  font-weight: bold;
}

.error-message {
  display: none;
  padding: 10px 15px;
  background: #ff4444;
  color: white;
  margin-top: 5px;
}

.channel-list {
  background: #1e1e1e;
  border-radius: 8px;
  padding: 15px;
}

.channel-list h3 {
  margin-top: 0;
  color: #fff;
  border-bottom: 1px solid #333;
  padding-bottom: 10px;
}

.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.channel-item {
  background: #2d2d2d;
  padding: 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
}

.channel-item:hover {
  background: #3d3d3d;
}

.channel-item.active {
  background: #4a6da7;
  font-weight: bold;
}

@media (max-width: 768px) {
  .channels-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
  
  .container {
    padding: 10px;
  }
}