body {
  background-color: #000;
  color: #eee;
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #111;
  padding: 15px 20px;
}

h1 {
  font-size: 28px;
  font-weight: bold;
  color: #fff;
}

.timers {
  display: flex;
  gap: 30px;
}

.timer, .stopwatch {
  color: #ccc;
}

button {
  background: #333;
  color: #eee;
  border: none;
  padding: 6px 12px;
  margin: 3px;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #555;
}

main {
  display: grid;
  grid-template-columns: 2fr 1fr;
  padding: 20px;
  gap: 20px;
}

.video-section {
  text-align: center;
}

#yt-link {
  width: 70%;
  padding: 8px;
  margin-bottom: 10px;
  background: #222;
  border: 1px solid #444;
  color: #eee;
}

#player {
  width: 100%;
  height: 500px;
  margin-top: 10px;
}

#playlist {
  list-style: none;
  padding: 0;
  margin-top: 15px;
  color: #aaa;
}

.notes-section {
  display: flex;
  flex-direction: column;
  background: #111;
  padding: 15px;
  border-radius: 10px;
}

textarea {
  background: #222;
  color: #fff;
  border: 1px solid #444;
  padding: 10px;
  min-height: 300px;
  resize: vertical;
  border-radius: 6px;
}

.note-buttons {
  margin-top: 10px;
}