@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap");
*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: inherit; }

html {
  font-size: 62.5%; }
  @media (max-width: 75em) {
    html {
      font-size: 56.25%; } }
  @media (max-width: 56.25em) {
    html {
      font-size: 50%; } }

body {
  box-sizing: border-box; }

body {
  font-family: 'Roboto', sans-serif;
  font-size: 2rem;
  height: 100vh;
  background-color: cornflowerblue;
  display: flex;
  align-items: center;
  justify-content: center; }

.countdown__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 70%;
  width: 75%;
  background-color: cornsilk;
  border-radius: 3rem;
  padding: 3rem 5rem; }
  @media (max-width: 37.5em) {
    .countdown__container {
      width: 95%; } }
  .countdown__container .primary {
    width: 100%; }
  .countdown__container .header {
    font-size: 4rem;
    text-align: center; }

.form {
  display: flex;
  flex-direction: column;
  align-items: center; }
  .form label {
    margin-top: 3rem;
    font-size: 3rem; }

.btn, input {
  width: 60rem;
  border-radius: 50px;
  font-size: 2rem;
  border: none;
  padding: 1rem 2.5rem; }
  @media (max-width: 37.5em) {
    .btn, input {
      width: 100%; } }

.btn {
  box-shadow: 0.5rem 0.5rem 2rem rgba(0, 0, 0, 0.3);
  transition: all .1s; }
  .btn:active {
    box-shadow: none;
    transform: translateY(0.5rem); }

input[type=submit] {
  width: 60rem;
  border-radius: 50px;
  font-size: 2rem;
  font-weight: bold;
  margin-top: 5rem; }
  @media (max-width: 37.5em) {
    input[type=submit] {
      width: 100%; } }

.countdown {
  text-align: center;
  margin-top: 7rem;
  height: 100%;
  width: 100%; }
  @media (max-width: 37.5em) {
    .countdown {
      margin-top: 15rem; } }
  .countdown ul {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5rem;
    width: 100%; }
    .countdown ul li {
      list-style: none;
      font-size: 4.5rem;
      display: inline-block;
      text-align: center; }
      @media (max-width: 37.5em) {
        .countdown ul li {
          font-size: 1.5rem; } }
      .countdown ul li span {
        display: block;
        font-size: 7rem; }

.complete {
  text-align: center;
  margin-top: 8rem; }
  .complete h1 {
    font-size: 5rem; }
  .complete > *:not(:first-child) {
    margin-top: 5rem; }