body {
  font-family: Arial, sans-serif;
  text-align: center;
  background: #f4f4f4;
  margin: 0;
  padding: 20px;
}

h1 {
  margin-bottom: 20px;
}

/* INPUT SECTION */
.input-section input {
  padding: 10px;
  margin: 5px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

button {
  padding: 8px 12px;
  margin: 5px;
  border: none;
  border-radius: 6px;
  background: black;
  color: white;
  cursor: pointer;
}

button:hover {
  opacity: 0.8;
}

/* FILTER BUTTONS */
.filters {
  margin: 15px 0;
}

/* TASK LIST */
ul {
  list-style: none;
  padding: 0;
}

/* TASK ITEM */
li {
  background: white;
  margin: 10px auto;
  padding: 12px;
  width: 300px;
  border-radius: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

li span {
  cursor: pointer;
  flex: 1;
}

/* COMPLETED TASK */
.completed {
  text-decoration: line-through;
  opacity: 0.6;
}

/* BUTTON GROUP */
li div {
  display: flex;
  gap: 5px;
}