* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #f4f4f9;
  color: #333;
  line-height: 1.6;
}

header {
  background: #333;
  color: #fff;
  padding: 15px;
  text-align: center;
}

main {
  max-width: 600px;
  margin: 30px auto;
  padding: 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

form {
  display: flex;
  margin-bottom: 20px;
}

form input {
  flex: 1;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px 0 0 5px;
}

form button {
  padding: 10px 20px;
  border: none;
  background: #28a745;
  color: white;
  cursor: pointer;
  border-radius: 0 5px 5px 0;
}

form button:hover {
  background: #218838;
}

.task-list {
  list-style: none;
}

.task-list li {
  background: #f9f9f9;
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.actions button {
  margin-left: 5px;
  padding: 5px 10px;
  border: none;
  cursor: pointer;
  border-radius: 3px;
}

.actions button:hover {
  opacity: 0.8;
}

.actions .delete {
  background: #dc3545;
  color: white;
}

.actions button:not(.delete) {
  background: #007bff;
  color: white;

}
footer {
  text-align: center;
  padding: 12px 16px;
  color: #666;
}