body {
  font-family: Arial, sans-serif;
  background-color: #f5f5f5;
  display: flex;
  justify-content: center;
  align-items: start;
  height: 100vh;
  padding-top: 50px;
}

.container {
  background-color: #ffffff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  width: 350px;
}

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

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

#taskInput {
  flex: 1;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
}

#addTaskBtn {
  padding: 10px 15px;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

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

.task-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  background-color: #eee;
  padding: 10px;
  border-radius: 5px;
}

.task-item.completed span {
  text-decoration: line-through;
  color: gray;
}

.delete-btn {
  background-color: #dc3545;
  color: white;
  border: none;
  padding: 5px 8px;
  border-radius: 5px;
  cursor: pointer;
}