body {
  font-family: Arial, sans-serif;
  background: #f0f8ff;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding-top: 50px;
  margin: 0;
}

.todo-container {
  background: #ffffff;
  padding: 30px;
  border-radius: 12px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 8px 20px rgba(0, 123, 255, 0.2);
}

h1 {
  text-align: center;
  color: #007bff;
  margin-bottom: 20px;
}

#todo-form {
  display: flex;
  gap: 10px;
}

#task-input {
  flex: 1;
  padding: 10px;
  border: 2px solid #007bff;
  border-radius: 6px;
  font-size: 16px;
}

button {
  padding: 10px 20px;
  background: #007bff;
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

button:hover {
  background: #0056b3;
}

#task-list {
  list-style: none;
  padding: 0;
  margin-top: 20px;
}

#task-list li {
  background: #f5f5f5;
  margin-bottom: 10px;
  padding: 12px;
  border-radius: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#task-list li span {
  flex: 1;
}

.delete-btn {
  background: transparent;
  border: none;
  color: red;
  font-size: 16px;
  cursor: pointer;
}
.task-check {
  margin-right: 10px;
  transform: scale(1.2);
  cursor: pointer;
}

.checked {
  text-decoration: line-through;
  color: gray;
}