body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  margin: 0;
  padding: 20px;
}

h1 {
  text-align: center;
}

form {
  background-color: #fff;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

form input, form button {
  display: block;
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  font-size: 16px;
}

form button {
  background-color: #4CAF50;
  color: white;
  border: none;
  cursor: pointer;
}

form button:hover {
  background-color: #45a049;
}

#workout-list div {
  background-color: #fff;
  margin-bottom: 10px;
  padding: 15px;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}