footer {
  margin-top: 100px;
}

.todos {
  padding-left: 0;
  max-width: 800px;
}

.todo {
  list-style: none;
  padding: 13px 13px;
}

.todo-done,
.todo-done a {
  color: #b1b1b1;
  text-decoration: none;
}

.todo:nth-child(odd) {
  background-color: #e6e6e6;
}

.todo-metadata {
  margin-bottom: 10px;
  font-size: 13px;
}

.todo-controls {
  margin-top: 10px;
}

form.btn-delete,
form.btn-delete input[type='submit'] {
  display: inline-block;
}

form.btn-delete input[type='submit'] {
  background: none;
  color: blue;
  text-decoration: underline;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
}

form.btn-delete button:hover {
  color: darkblue; /* optional: change color on hover */
}

.form-error {
  border: 1px solid hsl(0, 68%, 38%);
  margin: 10px 0;
  background-color: hsl(0, 68%, 80%);
  max-width: 800px;
  padding: 5px 10px;
}