body {
  font-family: 'Arial', sans-serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  background: linear-gradient(to right, #6DD5FA, #FF758C);
  color: #333;
}

#todo-app {
  width: 80%;
  max-width: 400px;
  margin: 0 auto;
  padding: 20px;
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

#todo-form input[type="text"] {
  width: 70%;
  padding: 10px;
  border: 2px solid #ddd;
  border-radius: 4px;
  margin-right: 10px;
}

#todo-form button {
  padding: 10px 20px;
  background-color: #5F9EA0;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
}

#todo-form button:hover {
  background-color: #4682B4;
}

#todo-list {
  list-style: none;
  padding: 0;
}

#todo-list li {
  background-color: #f9f9f9;
  margin-top: 10px;
  padding: 10px;
  border-radius: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}