* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background-color: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.todo-container {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  width: 350px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

h1 {
  text-align: center;
  margin-bottom: 20px;
}

.input-section {
  display: flex;
  gap: 10px;
}

#task-input {
  flex: 1;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

#add-btn {
  background-color: #28a745;
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
}

#add-btn:hover {
  background-color: #218838;
}

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

#task-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px;
  border-bottom: 1px solid #ddd;
}

#task-list li.completed {
  text-decoration: line-through;
  color: #888;
}

.delete-btn {
  background-color: red;
  color: white;
  border: none;
  padding: 6px 6px;
  border-radius: 4px;
  cursor: pointer;
  margin-left: 190px;
}

.delete-btn:hover {
  background-color: darkred;
}