body {
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
  background-color: #f8f9fa;
  color: #333;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  background-color: white;
  border-bottom: 1px solid #e0e0e0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header button {
  background: none;
  border: none;
  color: #555;
  font-size: 16px;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

.header button:hover {
  background-color: #f0f0f0;
}

.header button i {
  margin-right: 8px;
}

.paste-area {
  padding: 20px;
  background-color: white;
  border-bottom: 1px solid #e0e0e0;
}

.paste-area textarea {
  width: 100%;
  height: 100px;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  resize: vertical;
  background-color: #f8f9fa;
}

.paste-area textarea:focus {
  outline: none;
  border-color: #007bff;
}

.lyrics-container {
  column-count: auto;
  column-width: 300px;
  column-gap: 40px;
  padding: 20px;
  background-color: white;
  height: calc(100vh - 220px);
  overflow: auto;
}

.lyrics {
  white-space: pre-line;
  font-size: 18px;
  line-height: 1.6;
  transition: font-size 0.3s ease, color 0.3s ease;
}

@media (max-width: 768px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header button {
    margin: 5px 0;
  }
  .lyrics-container {
    column-count: 1;
  }
}