.container {
  display: flex;
  flex-direction: column; 
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  text-align: center; 
  padding: 20px;
}

.container h2 {
  font-size: 2rem;
  margin-bottom: 20px; 
}

.container ul {
  font-size: 1.2rem;
  list-style: none; 
  padding: 0;
  margin: 20px 0;
  width: 100%;
  max-width: 800px; 
}

.container ul li {
  background-color: #f8f9fa;
  border-radius: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  margin-bottom: 10px;
  border: 1px solid #ddd;
  flex-wrap: wrap;
}

.finaldate {
  margin-left: auto;
  margin-right: 100px;
}

.container input {
  font-size: 1rem;
  padding: 10px;
  margin-top: 10px;
  width: 250px;
  border: 1px solid #ddd;
  border-radius: 5px;
}

.container button {
  font-size: 1rem;
  padding: 10px;
  margin-top: 10px;
  cursor: pointer;
  border: none;
  border-radius: 5px;
}

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

.task {
  display: flex;
  flex-direction: column; 
  align-items: center;
  text-align: center; 
  width: 100%;
  max-width: 800px;
}

.list-heading {
  display: flex;
  justify-content: space-between;
  font-weight: bold;
  width: 100%;
  max-width: 800px;
  margin-bottom: 10px;
}

.taskheading {
  margin-left: 20px; 
}

.duedate {
  margin-left: auto;
  margin-right: 20px;
}


@media (max-width: 750px) {
  .container {
    padding: 15px;
  }

  .list-heading , .taskheading, .duedate {
    display: none;
  }

  .container ul li {
    width: 100%;
    flex-direction: column;
    text-align: center;
    padding: 15px;
  }

  .task {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .container input,
  .container button {
    width: 100%;
    max-width: 350px;
  }

  .finaldate {
    margin: 5px 0 0 0;
    text-align: center;
  }
}