body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f0f0f0;
}

.container {
  max-width: 500px;
  margin: 20px auto;
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

input[type="text"] {
  width: calc(70% - 10px);
  padding: 10px;
  margin-right: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
}

button {
  padding: 10px 15px;
  background-color: #9966ff;
  color: white;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #7a52cc;
}

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

#taskList li {
  margin: 10px 0;
  padding: 10px;
  background-color: #f9f9f9;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 4px;
  transition: background-color 0.3s;
}

#taskList li:hover {
  background-color: #f0f0f0;
}

#taskList li button {
  background-color: #ff6666;
  padding: 5px 10px;
  font-size: 0.8em;
}

#taskList li button:hover {
  background-color: #ff4d4d;
}

/* Navigation styles */
nav {
  background-color: #9966ff;
  position: sticky;
  top: 0;
  width: 100%;
  margin: 0;
  padding: 0;
  z-index: 1000;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: flex-start;
}

nav li a {
  display: block;
  color: white;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

nav li a:hover:not(.active) {
  background-color: #000000;
}

nav .active {
  background-color: #d8eee6;
  color: #191b1d;
}