body {
  font-family: Arial, sans-serif;
  background: #fdfdfd;
  display: flex;
  justify-content: center;
  padding: 40px;
  color: #333;
}

.container {
  background: white;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  width: 500px;
}

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

.task-input {
  display: flex;
  gap: 5px;
}

.task-input input, select {
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 8px;
}

#addTask {
  background: black;
  color: white;
  font-size: 20px;
  padding: 0 15px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

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

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

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

.priority-low {
  border-left: 5px solid green;
}

.priority-medium {
  border-left: 5px solid orange;
}

.priority-high {
  border-left: 5px solid red;
}

.overdue {
  color: red;
}

.delete-btn {
  background: none;
  border: none;
  color: red;
  cursor: pointer;
}