body {
  font-family: Arial, sans-serif;
  background-color: #f4f4f4;
  margin: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.container {
  background-color: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  width: 500px;
}

h1 {
  text-align: center;
  color: #333;
}

.input-group {
  display: flex;
  margin-bottom: 20px;
}

input[type="text"] {
  flex: 1;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 16px;
}

button {
  padding: 10px 15px;
  border: none;
  background-color: #5cb85c;
  color: white;
  border-radius: 4px;
  cursor: pointer;
  font-size: 16px;
  margin-left: 10px;
}

button:hover {
  background-color: #4cae4c;
}

ul {
  list-style: none;
  padding: 0;
}

li {
  padding: 10px;
  border-bottom: 1px solid #eee;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

li:last-child {
  border-bottom: none;
}

li .task-text {
  flex: 1;
}

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

li .delete-btn, #clear-all-btn {
  background-color: #d9534f;
  color: white;
  border: none;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
}

li .delete-btn:hover, #clear-all-btn:hover {
  background-color: #c9302c;
}

.bulk-cont {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
}

.hidden {
  display: none;
}

.edit-input {
  flex: 1;
  padding: 8px;
  font-size: 16px;
  border: 1px solid #aaa;
  border-radius: 4px;
}

@media screen and (max-width: 768px) {
  body {
    align-items: flex-start;
  }
}