* {
  margin: 0;
  padding: 0;

  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  font-family: "Rubik", sans-serif;

  font-weight: 400;
  line-height: 1;
  background-color: #212529;
}

.container {
  /* max-width: 100rem; */
  margin: 3rem auto;

  /* border: 2px solid black; */
  background-color: inherit;
  border-radius: 11px;

  display: flex;
  flex-direction: column;
  /* align-items: center; */
}

.header {
  font-size: 3.6rem;
  font-weight: 700;

  margin: 2rem auto;

  color: #f1f3f5;
}

.main-form {
  display: flex;

  /* justify-content: space-between;
   */

  gap: 3.2rem;
  align-items: center;

  margin: 2rem auto;

  margin-bottom: 3rem;
}

.input-box {
  border: none;

  border-radius: 5px;

  background-color: #f1f3f5;

  width: 40rem;

  font-size: 1.4rem;
  color: #343a40;

  padding: 1rem 1.6rem;
}

.submit-btn {
  border: none;
  border-radius: 5px;
  padding: 1rem 1.6rem;

  font-size: 1.4rem;
  font-weight: 500;
  width: 8rem;

  color: #f1f3f5;
  background-color: #4263eb;

  transition: all 300ms ease;
}

.submit-btn:hover {
  filter: grayscale(0.5);
}

.todo-container {
  margin: 2rem auto;
}

.todos {
  list-style: none;

  font-size: 1.6rem;

  display: flex;

  color: #f1f3f5;

  justify-content: start;

  flex-direction: column;

  gap: 2rem;
}

.todo {
  border: 2px solid #f1f3f5;
  border-radius: 9px;

  padding: 1.6rem 3rem;

  display: flex;

  align-items: center;

  justify-content: space-between;

  max-width: 60rem;

  gap: 2rem;

  transition: all 300ms ease-in-out;
}

.todo.done {
  text-decoration: line-through;
  opacity: 0.75;
}

.icons {
  display: flex;

  font-size: 3rem;

  gap: 1.6rem;
}

.icon {
  transition: color 300ms;
}

.icon--remove:hover {
  color: #f03e3e;
}

.icon--done:hover {
  color: #4263eb;
}