*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: inherit; }

html {
  font-size: 62.5%; }

body {
  padding: 3rem;
  box-sizing: border-box; }

.u-center-text {
  text-align: center !important; }

.u-margin-bottom-big {
  margin-bottom: 8rem !important; }

.u-margin-bottom-small {
  margin-bottom: 1.5rem !important; }

.row {
  max-width: 114rem;
  margin: 0 auto; }
  .row::after {
    content: "";
    display: table;
    clear: both; }
  .row:not(:last-child) {
    margin-bottom: 3rem; }
  .row [class^="col-"] {
    float: left; }
    .row [class^="col-"]:not(:last-child) {
      margin-right: 6rem; }
  .row .col-1-of-2 {
    width: calc((100% - 6rem)/ 2); }
  .row .col-1-of-3 {
    width: calc((100% - 2*6rem) / 3); }
  .row .col-2-of-3 {
    width: calc(2*((100% - 2*6rem) / 3) + 6rem); }
  .row .col-1-of-4 {
    width: calc((100% - 3*6rem) / 4); }
  .row .col-2-of-4 {
    width: calc(1*((100% - 3*6rem) / 2) + 6rem); }
  .row .col-3-of-4 {
    width: calc(3*((100% - 3*6rem) / 4) + 2*6rem); }

body {
  font-family: "Helvetica", sans-serif;
  font-weight: 400;
  font-size: 1.6rem;
  line-height: 1.7;
  color: #777777; }

.heading-primary {
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 6rem; }
  .heading-primary--main {
    display: block;
    font-size: 6.2rem;
    font-weight: 400;
    letter-spacing: 1.5rem;
    animation: moveInLeft 1s ease-out; }
  .heading-primary--sub {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 1.8rem;
    animation: moveInRight 1s ease-out; }

.heading-secondary {
  font-size: 3.5rem;
  text-transform: uppercase;
  font-weight: 700;
  display: inline-block;
  letter-spacing: .2rem;
  cursor: pointer;
  background-image: linear-gradient(to right, #8e9efc, #1c3eff);
  color: transparent;
  -webkit-background-clip: text;
  transition: all .2s; }
  .heading-secondary:hover {
    transform: skewY(5deg) scale(1.1);
    text-shadow: 0.5rem 1rem 2rem rgba(0, 0, 0, 0.2); }

.heading-tertiary {
  font-size: 1.6rem;
  font-weight: 700;
  text-transform: uppercase; }

.paragraph {
  font-size: 1.6rem; }
  .paragraph:not(:last-child) {
    margin-bottom: 2rem; }

@keyframes moveInLeft {
  0% {
    opacity: 0;
    transform: translateX(-10rem); }
  80% {
    transform: translateX(1rem); }
  100% {
    opacity: 1;
    transform: translateX(0); } }

@keyframes moveInRight {
  0% {
    opacity: 0;
    transform: translateX(10rem); }
  80% {
    transform: translateX(-1rem); }
  100% {
    opacity: 1;
    transform: translateX(0); } }

@keyframes moveInBottom {
  0% {
    opacity: 0;
    transform: translateY(3rem); }
  100% {
    opacity: 1;
    transform: translateY(0); } }

.btn-text:link, .btn-text:visited {
  color: #5a73fc;
  display: inline-block;
  text-decoration: none;
  border-bottom: 1px solid #5a73fc;
  padding: .3rem;
  font-size: 1.6rem;
  transition: all .2s; }

.btn-text:hover {
  background-color: #5a73fc;
  color: #fff;
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);
  transform: translateY(-0.2rem); }

.btn-text:active {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  transform: translateY(0); }

.btn:link, .btn:visited {
  text-transform: uppercase;
  text-decoration: none;
  padding: 1.5rem 4rem;
  display: inline-block;
  border-radius: 10rem;
  font-size: 1.6rem;
  position: relative;
  transition: all 0.2s; }

.btn::after {
  content: "";
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  left: 0;
  z-index: -1;
  border-radius: 10rem;
  transition: all 0.4s; }

.btn:hover {
  transform: translateY(-0.3rem);
  box-shadow: 0 0.5rem 2rem rgba(0, 0, 0, 0.2); }
  .btn:hover::after {
    transform: scaleX(1.4) scaleY(1.6);
    opacity: 0; }

.btn:active {
  outline: none;
  transform: translateY(-0.1rem);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.2); }

.btn--blue {
  background-color: #5a73fc;
  color: #fff; }
  .btn--blue::after {
    background-color: #5a73fc; }

.btn--animated {
  animation: moveInBottom .5s ease-out .75s;
  animation-fill-mode: backwards; }

.header {
  background-image: linear-gradient(to right bottom, rgba(142, 158, 252, 0.5), rgba(28, 62, 255, 0.8)), url("../img/DHSP.png");
  background-size: cover;
  background-position: top;
  position: relative;
  height: 95vh;
  -webkit-clip-path: ellipse(60% 60% at 50% 33%);
  clip-path: ellipse(60% 60% at 50% 33%); }
  .header__text-box {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center; }
  .header__logo {
    height: 7rem; }
  .header__logo-box {
    position: absolute;
    top: 3rem;
    left: 3rem; }

.section-intro {
  background-color: #f7f7f7;
  padding: 25rem 0;
  margin-top: -25rem; }

.section-generation {
  background-color: #f7f7f7;
  position: relative;
  padding: -5rem 0; }

.section-FindPath {
  background-color: #f7f7f7;
  position: relative;
  padding: -5rem 0; }

.section-mazeGame {
  position: relative;
  padding: 5rem 0; }

.composition {
  position: relative; }
  .composition__photo {
    width: 50%;
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.4);
    border-radius: .2rem;
    position: absolute;
    z-index: 10;
    outline-offset: 1rem;
    transition: all .2s; }
    .composition__photo--p1 {
      left: 0;
      top: -2rem; }
    .composition__photo--title1 {
      position: absolute;
      top: 50%;
      left: 50%;
      color: #c2e1fd;
      transform: translate(-65%, 100%);
      transition: all .2s; }
    .composition__photo--p2 {
      right: 2rem;
      top: 2rem; }
    .composition__photo--p3 {
      left: 10%;
      top: 10rem; }
    .composition__photo:hover {
      transform: scale(1.25);
      box-shadow: 0 2.5rem 4rem rgba(0, 0, 0, 0.5);
      z-index: 20; }
    .composition__photo:hover .composition__photo__photo:not(:hover) {
      transform: scale(0.9); }

.step-list {
  position: relative;
  display: block;
  margin-left: 5rem;
  margin-bottom: 2rem; }

.step-photo {
  position: relative;
  border-radius: .2rem;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.4);
  transition: all .2s;
  outline-offset: 1rem;
  z-index: 10;
  margin: 0 auto;
  margin: 5rem;
  width: 500px;
  text-decoration: none !important;
  text-align: center; }
  .step-photo__p3 {
    margin-left: 7rem; }

.animation {
  position: relative;
  display: block;
  margin-left: 35rem;
  margin-bottom: 2rem; }

.popup {
  height: 100vh;
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.8);
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.5s; }
  .popup__content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 75%;
    background-color: #fff;
    border-radius: 3rem;
    display: table;
    overflow: hidden;
    transform: translate(-50%, -50%) scale(0.5); }
  .popup__top {
    width: 100%;
    display: table-cell;
    vertical-align: middle;
    padding: 3rem 1rem;
    text-align: center; }
  .popup__close:link, .popup__close:visited {
    color: #333;
    position: absolute;
    top: 2.5rem;
    right: 2.5rem;
    font-size: 3rem;
    text-decoration: none; }
  .popup:target {
    opacity: 1;
    visibility: visible; }
  .popup:target .popup__content {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    transition: all .4s .2s; }

.navigation__checkbox {
  display: none; }

.navigation__button {
  background-color: #fff;
  height: 7rem;
  width: 7rem;
  top: 3rem;
  right: 3rem;
  border-radius: 50%;
  position: fixed;
  z-index: 9999;
  cursor: pointer;
  text-align: center;
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.15); }

.navigation__background {
  background-image: radial-gradient(#5a73fc, #1c3eff);
  height: 6rem;
  width: 6rem;
  top: 3.5rem;
  right: 3.5rem;
  border-radius: 50%;
  position: fixed;
  z-index: 1000;
  transition: transform 0.8s; }

.navigation__checkbox:checked ~ .navigation__background {
  transform: scale(80); }

.navigation__checkbox:checked ~ .navigation__nav {
  opacity: 1;
  width: 100%; }

.navigation__nav {
  height: 100vh;
  width: 0;
  top: 0;
  right: 0;
  position: fixed;
  z-index: 1500;
  transition: all 0.8s;
  opacity: 0; }

.navigation__list {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  list-style: none;
  text-align: center; }

.navigation__item {
  margin: 1rem; }

.navigation__link:link, .navigation__link:visited {
  color: #fff;
  display: inline-block;
  font-size: 3rem;
  font-weight: 3rem;
  margin-bottom: 1rem 2rem;
  text-decoration: none;
  text-transform: uppercase;
  background-image: radial-gradient(150% 250% ellipse at 115%, #fff 0%, #fff 50%, transparent 50%);
  background-size: 250%;
  transition: all .4s; }

.navigation__link:hover, .navigation__link:active {
  background-position: 100%;
  color: #5a73fc;
  transform: translateX(1rem); }

.navigation__icon {
  position: relative;
  margin-top: 3.2rem; }
  .navigation__icon, .navigation__icon::before, .navigation__icon::after {
    width: 3.5rem;
    height: .3rem;
    background-color: #333;
    display: inline-block; }
  .navigation__icon::before, .navigation__icon::after {
    content: "";
    position: absolute;
    left: 0; }
  .navigation__icon::before {
    top: -.8rem; }
  .navigation__icon::after {
    top: .8rem; }

.navigation__button:hover .navigation__icon::before {
  top: -1rem; }

.navigation__button:hover .navigation__icon::after {
  top: 1rem; }

.navigation__checkbox:checked + .navigation__button .navigation__icon {
  background-color: transparent; }

.navigation__checkbox:checked + .navigation__button .navigation__icon::before {
  top: 0;
  transform: rotate(-135deg); }

.navigation__checkbox:checked + .navigation__button .navigation__icon::after {
  top: 0;
  transform: rotate(135deg); }