.start-button {
  background-color: #28a745;
  color: white;
  border: none;
  padding: 10px 15px;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-decoration: none;
}

.start-button:hover {
  background-color: #218838;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.start-button:active {
  background-color: #1e7e34;
}


.end-button {
  background-color: #dc3545;
  color: white;
  border: none;
  padding: 10px 20px;
  font-weight: bold;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  text-decoration: none;
}

.end-button:hover {
  background-color: #c82333;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.end-button:active {
  background-color: #bd2130;
}