/** Mixin definitions **/
/** Base styles **/
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  font-size: 62.5%;
}
body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  font-family: "Open Sans", sans-serif;
  font-size: 1.4rem;
  font-weight: 300;
  line-height: 1;
  color: #333;
  background: url("https://cdn.arnellebalane.com/images/codepen-day77/background.jpg") center center no-repeat;
  background-attachment: fixed;
  background-size: cover;
}
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
ul {
  list-style: none;
}
.hidden {
  display: none !important;
}
/** Card styles **/
.card {
  display: flex;
  flex-direction: column;
  width: 63rem;
  min-height: 54rem;
  max-width: 90vw;
  border-radius: 5px;
  background-color: #1f1e22;
  box-shadow: 0 2.5rem 15rem rgba(0,0,0,0.7);
}
.card__content {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  flex-grow: 1;
}
.card__title {
  font-size: 3rem;
  font-weight: normal;
  text-align: center;
  color: #fff;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
}
.categories-container {
  position: relative;
}
.categories {
  display: flex;
  max-width: 90vw;
  overflow: hidden;
}
.categories__scroll {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  border: none;
  position: absolute;
  top: calc(50% - 1.5rem);
  z-index: 2;
  border-radius: 50%;
  background-color: #19ba30;
  outline: none;
  transition: background-color 250ms ease;
}
.categories__scroll:hover,
.categories__scroll:focus {
  background-color: #1bcc35;
}
.categories__scroll::before {
  content: "";
  width: 1rem;
  height: 1rem;
  position: absolute;
  top: calc(50% - 0.5rem);
  left: calc(50% - 0.5rem);
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
}
.categories__scroll--left {
  left: -1.5rem;
}
.categories__scroll--left::before {
  transform: translateX(2px) rotate(-45deg);
}
.categories__scroll--right {
  right: -1.5rem;
}
.categories__scroll--right::before {
  transform: translateX(-2px) rotate(135deg);
}
.category {
  flex-shrink: 0;
  width: 20rem;
  height: 20rem;
  margin: 0 0.5rem;
  position: relative;
}
.category:first-child {
  margin-left: 0;
}
.category:last-child {
  margin-right: 0;
}
.category::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  border: 3px solid transparent;
  border-radius: 3px;
  pointer-events: none;
  transition: border-color 150ms ease;
}
.category--selected::before {
  border-color: #19ba30;
}
.category__link {
  display: block;
  height: 100%;
  position: relative;
  border-radius: 3px;
  overflow: hidden;
}
.category__image {
  width: 100%;
}
.category__name {
  position: absolute;
  top: auto;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 2rem;
  color: #707070;
  background-color: #fff;
}
.category__name::before {
  content: "";
  width: 1.4rem;
  height: 0.8rem;
  position: absolute;
  top: calc(50% - 0.4rem);
  right: 2rem;
  border-left: 3px solid #19ba30;
  border-bottom: 3px solid #19ba30;
  transform: translateY(-2px) rotate(-45deg) scale(0);
  transition: transform 200ms cubic-bezier(0.25, 0.1, 0.54, 1.75);
}
.category--selected .category__name {
  color: #333;
}
.category--selected .category__name::before {
  transform: translateY(-2px) rotate(-45deg) scale(1);
}
.infobox {
  text-align: center;
  margin-bottom: 1rem;
}
.infobox p {
  line-height: 1.2;
}
.infobox p:first-child {
  color: #fff;
  opacity: 0.3;
}
.infobox p:last-child {
  color: #34c044;
}
.card__footer {
  display: flex;
  align-items: center;
  padding: 0 3rem;
  height: 10rem;
  border-radius: 0 0 5px 5px;
  background-color: #fff;
}
.card__steps {
  display: flex;
  align-items: center;
  margin-right: auto;
  position: relative;
}
.card__steps__item {
  width: 4rem;
  height: 4rem;
  position: absolute;
  top: calc(50% - 2rem);
  left: 0;
  font-size: 0;
  text-align: center;
  line-height: 4rem;
  color: #fff;
  border-radius: 50%;
  background-color: #707070;
}
.card__steps__item:nth-child(2) {
  left: 1.2rem;
  opacity: 0.8;
  transform: scale(0.8);
}
.card__steps__item:nth-child(3) {
  left: 2.4rem;
  opacity: 0.5;
  transform: scale(0.6);
}
.card__steps__item:nth-child(4) {
  left: 3.6rem;
  opacity: 0.2;
  transform: scale(0.4);
}
.card__steps__item--current {
  z-index: 1;
  font-size: 1.6rem;
  background-color: #19ba30;
  opacity: 1;
}
.card__button {
  display: block;
  padding: 1.5rem 2.5rem;
  border: none;
  background-color: transparent;
}
.card__button--disabled {
  color: #999;
}
@media all and (max-width: 600px) {
  body {
    align-items: flex-start;
  }
  .card {
    margin: 2rem;
  }
  .card__content {
    align-items: stretch;
  }
  .card__title {
    margin-bottom: 3rem;
  }
  .categories {
    flex-direction: column;
    padding: 0 1rem;
  }
  .categories__scroll {
    display: none !important;
  }
  .category {
    width: 100%;
    height: auto;
    margin: 0.5rem 0;
  }
  .infobox {
    margin-top: 3rem;
    margin-bottom: 2rem;
  }
}