.cover {
  min-height: 1065px;
  overflow: hidden;
}

.cover:after {
  background: url('i/egor.png');
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: 960px;
  content: '';
  height: 100%;
  position: absolute;
  transform: translateX(350px);
  width: 100%;
}

.cover .cubes > div:nth-child(1) {
  animation: fly 8s linear infinite;
  animation-direction: alternate;
  background: url('i/cube-left.png') no-repeat;
  background-position: center;
  height: 330px;
  left: calc(50% - 600px);
  position: absolute;
  transform: translate(-50%, -50%);
  top: 50%;
  width: 355px;
  z-index: 1;
}

@keyframes fly {
  0% {
    transform: translate(-51%, -55%);
  }

  50% {
    transform: translate(-50%, -50%);
  }

  100% {
    transform: translate(-49%, -45%);
  }
}

.cover .cubes > div:nth-child(2) {
  animation: fly2 6s linear infinite;
  animation-delay: 0.2s;
  animation-direction: alternate;
  background: url('i/cube-right.png') no-repeat;
  background-position: center;
  height: 330px;
  left: calc(50% - 365px);
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 355px;
  z-index: 1;
}

@keyframes fly2 {
  0% {
    transform: translate(-49%, -45%);
  }

  50% {
    transform: translate(-50%, -50%);
  }

  100% {
    transform: translate(-51%, -55%);
  }
}

.cover_bg > div {
  animation: 30s up linear infinite;
  background: url('i/pattern.png');
  height: 100%;
  min-height: 1066px;
  position: absolute;
  width: 100%;
}

.cover_bg > div:nth-child(2) {
  top: 100%;
}

@keyframes up {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-100%);
  }
}

body,
.announce {
  background: linear-gradient(to top, #009479, #02694b);
  color: #fff;
}

.snow-wrapper {
  overflow: hidden;
}

.announce__picture {
  margin-bottom: 40px;
}

.announce__text {
  color: #fff;
}

.announce__text .body_link {
  margin-left: -30px;
}

.body_link a {
  color: #fff;
  border-bottom-color: #fff;
  transition: none;
}

.favicon {
  position: relative;
  right: 5px;
  top: 7px;
}

.cards {
  margin: 100px auto;
  max-width: 900px;
}

.cards .card {
  border: 0 none;
  font-size: 250px;
  height: 1em;
  perspective: 800px;
  pointer-events: none;
  user-select: none;
  width: .7272727273em;
}

.cards_preview {
  height: 350px;
  position: relative;
}

.base-card,
.card_holder .card {
  margin: 0 auto;
  transform-origin: 50% 900px;
  transform: rotate(-25deg);
  width: 180px;
}

.card_holder .card.show:nth-child(1) {
  animation: card1 0.5s forwards;
}

.card_holder .card.show:nth-child(2) {
  animation: card2 0.5s forwards;
  animation-delay: 0.1s;
}

.card_holder .card.show:nth-child(3) {
  animation: card3 0.5s forwards;
  animation-delay: 0.2s;
}

.card_holder .card.show:nth-child(4) {
  animation: card4 0.5s forwards;
  animation-delay: 0.3s;
}

.card_holder .card.show:nth-child(5) {
  animation: card5 0.5s forwards;
  animation-delay: 0.4s;
}

@keyframes card1 {
  from { transform:rotate(-25deg); }
  to { transform:rotate(25deg); }
}

@keyframes card2 {
  from { transform:rotate(-25deg); }
  to { transform:rotate(17deg); }
}

@keyframes card3 {
  from { transform:rotate(-25deg); }
  to { transform:rotate(9deg); }
}

@keyframes card4 {
  from { transform:rotate(-25deg); }
  to { transform:rotate(1deg); }
}

@keyframes card5 {
  from { transform:rotate(-25deg); }
  to { transform:rotate(-7deg); }
}

.cards_preview .base.card {
  border: 0 none;
  float: none;
  overflow: visible;
  user-select: none;
  filter: none;
}
.cards_preview .base.card ins {
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 1;
  border-radius: 5px;
  background-image: url('i/card.svg');
  background-repeat: no-repeat;
  background-size: 100% auto;
  cursor: pointer;
  filter: drop-shadow(0px 0px 1px rgba(0, 0, 0, 0.15));
}
.cards_preview .base.card ins ins {
  top: 1px;
  left: 2px;
}

.cards_preview .card_holder .card {
  left: 0;
  position: absolute;
  right: -34px;
  top: 0;
  transition: margin-top 0.3s ease, font-size 0.3s ease;
}
/*.cards_preview .card_holder .card:after {*/
  /*content: '';*/
  /*height: 100%;*/
  /*pointer-events: all;*/
  /*position: absolute;*/
  /*width: 180px;*/
/*}*/

.cards .card.show .front > div {
  transform: rotateY(0);
}

/*.cards .card.unshow .front > div {*/
  /*transform: rotateY(-180deg);*/
/*}*/

/*.cards .card.unshow .back > div {*/
  /*transform: rotateY(-180deg);*/
/*}*/

.cards .card .front > div {
  transform: rotateY(-180deg);
  backface-visibility: hidden;
}

.cards .card.show .back {
  transform: rotateY(180deg);
}

.cards .card.unshow {
  pointer-events: none;
}

.cards .card.unshow .back,
.cards .card.unshow .front > div,
.cards .card.show .back,
.cards .card.show .front > div {
  backface-visibility: hidden;
  border-radius: 7px;
  box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.15);
  height: 100%;
  left: 0;
  position: absolute;
  top: 0;
  transition: transform 0.75s ease;
  width: 100%;
}

.cards .card .back {
  background-image: url('i/card.svg');
  background-repeat: no-repeat;
  background-size: 100% auto;
}

.cards .card .front > div:before {
  content: '';
  display: block;
}

.cards .card .front > div:before {
  width: .7272727273em;
  height: 1em;
  background-repeat: no-repeat;
  background-size: 100% auto;
  background-position: 0 0;
}

.card_1:before {
  background-image: url('i/assets/1.svg');
}
.card_2:before {
  background-image: url('i/assets/2.svg');
}
.card_3:before {
  background-image: url('i/assets/3.svg');
}
.card_4:before {
  background-image: url('i/assets/4.svg');
}
.card_5:before {
  background-image: url('i/assets/5.svg');
}
.card_6:before {
  background-image: url('i/assets/6.svg');
}
.card_7:before {
  background-image: url('i/assets/7.svg');
}
.card_8:before {
  background-image: url('i/assets/8.svg');
}
.card_9:before {
  background-image: url('i/assets/9.svg');
}
.card_10:before {
  background-image: url('i/assets/10.svg');
}
.card_11:before {
  background-image: url('i/assets/11.svg');
}
.card_12:before {
  background-image: url('i/assets/12.svg');
}
.card_13:before {
  background-image: url('i/assets/13.svg');
}
.card_14:before {
  background-image: url('i/assets/14.svg');
}
.card_15:before {
  background-image: url('i/assets/15.svg');
}
.card_16:before {
  background-image: url('i/assets/16.svg');
}
.card_17:before {
  background-image: url('i/assets/17.svg');
}
.card_18:before {
  background-image: url('i/assets/18.svg');
}
.card_19:before {
  background-image: url('i/assets/19.svg');
}
.card_20:before {
  background-image: url('i/assets/20.svg');
}
.card_21:before {
  background-image: url('i/assets/21.svg');
}
.card_22:before {
  background-image: url('i/assets/22.svg');
}
.card_23:before {
  background-image: url('i/assets/23.svg');
}
.card_24:before {
  background-image: url('i/assets/24.svg');
}
.card_25:before {
  background-image: url('i/assets/25.svg');
}
.card_26:before {
  background-image: url('i/assets/26.svg');
}
.card_27:before {
  background-image: url('i/assets/27.svg');
}
.card_28:before {
  background-image: url('i/assets/28.svg');
}
.card_29:before {
  background-image: url('i/assets/29.svg');
}
.card_30:before {
  background-image: url('i/assets/30.svg');
}
.card_31:before {
  background-image: url('i/assets/31.svg');
}
.card_32:before {
  background-image: url('i/assets/32.svg');
}
.card_33:before {
  background-image: url('i/assets/33.svg');
}
.card_34:before {
  background-image: url('i/assets/34.svg');
}
.card_35:before {
  background-image: url('i/assets/35.svg');
}
.card_36:before {
  background-image: url('i/assets/36.svg');
}
.card_37:before {
  background-image: url('i/assets/37.svg');
}
.card_38:before {
  background-image: url('i/assets/38.svg');
}
.card_39:before {
  background-image: url('i/assets/39.svg');
}
.card_40:before {
  background-image: url('i/assets/40.svg');
}
.card_41:before {
  background-image: url('i/assets/41.svg');
}
.card_42:before {
  background-image: url('i/assets/42.svg');
}
.card_43:before {
  background-image: url('i/assets/43.svg');
}
.card_44:before {
  background-image: url('i/assets/44.svg');
}
.card_45:before {
  background-image: url('i/assets/45.svg');
}
.card_46:before {
  background-image: url('i/assets/46.svg');
}
.card_47:before {
  background-image: url('i/assets/47.svg');
}
.card_48:before {
  background-image: url('i/assets/48.svg');
}
.card_49:before {
  background-image: url('i/assets/49.svg');
}
.card_50:before {
  background-image: url('i/assets/50.svg');
}
.card_51:before {
  background-image: url('i/assets/51.svg');
}
.card_52:before {
  background-image: url('i/assets/52.svg');
}

.cards_less_680 {
  display: none;
}

.scrollable img {  
  display: inline-block;   
}

img.float {
  padding-left: 30px;
  vertical-align: top;
  opacity: 0;
}

@media (max-width: 890px) {
  img.main {
    width: 65%;
  }

  img.float {
    padding-left: 3%;
    width: 30%;
  }
}




.bottom_center {
  animation: slide-bottom-to-center 0.5s ease-out;
}

.center_top {
  animation: slide-center-to-top 0.5s ease-in;
}

.top_center {
  animation: slide-top-to-center 0.5s ease-out;
}

.center_bottom {
  animation: slide-center-to-bottom 0.5s ease-in;
}



@keyframes slide-bottom-to-center {
  0% { 
    transform:translateY(650px);
    opacity : 0;
  }

  90% {
    transform:translateY(-15px);
    opacity: 1;
  }

  100% {
    transform:translateY(0);
    opacity: 1;
  }
}

@keyframes slide-center-to-top {
  0% { 
    transform:translateY(0);
    opacity : 1;
  }

  10% {
    transform:translateY(15px);
    opacity: 1;
  }

  100% {
    transform:translateY(-650px);
    opacity: 0;
  }
}

@keyframes slide-top-to-center {
  0% { 
    transform:translateY(-650px);
    opacity : 0;
  }

  90% {
    transform:translateY(15px);
    opacity : 1;
  }

  100% {
    transform:translateY(0);
    opacity: 1;
  }
}

@keyframes slide-center-to-bottom {
  0% { 
    transform:translateY(0);
    opacity : 1;
  }

  10% {
    transform:translateY(-15px);
    opacity: 1;
  }

  100% {
    transform:translateY(650px);
    opacity: 0;
  }
}

video {  
  max-width: 100%
}

.video_wrapper {
  border-radius: 15px;
  display: inline-block;
  margin-bottom: 50px;
  max-width: 835px;  
  overflow: hidden;
  position: relative;
  -webkit-transform: translateZ(0);
  -webkit-mask-image: -webkit-radial-gradient(circle, white, black);
}

.video_cubes > div {
  background-position: center;
    background-size: contain;
    background-repeat: no-repeat;
    height: 8%; 
    position: absolute;
    top: 10%;
    width: 8%;
    z-index: 2;
}

.video_cubes > div:nth-child(1) {
    animation: fly 8s linear infinite;
    animation-direction: alternate;  
    background-image: url('i/cube-left.png');
    left: 7%;    
    -ms-animation-name: none;     
}

.video_cubes > div:nth-child(2) {
    animation: fly 4s linear infinite;
    animation-delay: 0.2s;
    animation-direction: alternate;  
    background-image: url('i/cube-right.png');
    left: 11%;
    -ms-animation-name :none;
}


@media (max-width: 1800px) {
  .cover:after {
    transform: translateX(250px);
  }
}

@media (max-width: 1600px) {
  .cover:after {
    transform: translateX(150px);
  }

  .cover .cubes > div:nth-child(1) {
    left: calc(50% - 500px);
  }

  .cover .cubes > div:nth-child(2) {
    left: calc(50% - 265px);
  }
}

@media (max-width: 1350px) {
  .cover {
    min-height: 896px;
  }

  .cover:after {
    background-size: 800px;
    transform: translateX(150px);
  }

  .cover .cubes > div:nth-child(1) {
    background-size: 270px;
    left: calc(50% - 450px);
  }

  .cover .cubes > div:nth-child(2) {
    background-size: 350px;
  }
}

@media (max-width: 1150px) {
  .cover:after {
    transform: translateX(100px);
  }

  .cover .cubes > div:nth-child(1) {
    left: calc(50% - 350px);
  }

  .cover .cubes > div:nth-child(2) {
    left: calc(50% - 175px);
  }
}

@media (max-width: 980px) {
  .cards_preview .card_holder .card {
    right: 0;
  }

  .cards .card.unshow:nth-child(3) .back {
    animation: 0.75s unshow-show-back forwards;
  }

  .cards .card.unshow:nth-child(3) .front > div {
    animation: 0.75s unshow-show-front forwards;
  }

  @keyframes unshow-show-back {
    from { transform: rotateY(180deg); }
    to { transform: rotateY(0); }
  }

  @keyframes unshow-show-front {
    from { transform: rotateY(0); }
    to { transform: rotateY(-180deg); }
  }

  .cards .card.show:nth-child(3) .back {
    animation: 0.75s show-show-back forwards;
  }

  .cards .card.show:nth-child(3) .front > div {
    animation: 0.75s show-show-front forwards;
  }

  @keyframes show-show-back {
    from { transform: rotateY(0); }
    to { transform: rotateY(-180deg); }
  }

  @keyframes show-show-front {
    from { transform: rotateY(180deg); }
    to { transform: rotateY(0); }
  }

  .cards_less_680 .card .back {
    border: 0 none;
    font-size: 200px;
    height: 1em;
    perspective: 800px;
    pointer-events: none;
    user-select: none;
    width: .7272727273em;
    position: absolute;
    top: 0;
  }


  .cards_less_680 .card.fly:nth-child(1) {
    animation: 0.5s fly3 forwards !important;
    transform: rotate(-10deg) translate(-30px, 0);
  }

  .cards_less_680 .card.fly:nth-child(2) {
    animation: 0.5s fly4 forwards !important;
    transform: rotate(10deg) translate(30px, 0);
  }

  .cards_less_680 .card.fly:nth-child(1) .front > div {
    transform: rotate(-150deg) !important;
    transition: 0.3s;
  }

  .cards_less_680 .card.fly:nth-child(2) .front > div {
    transform: rotate(150deg) !important;
    transition: 0.3s;
  }

  .cards_less_680 .card {
    animation: none !important;
    pointer-events: auto;
    transform: none;
    transform-origin: 0;
  }

  @keyframes fly3  {
    from { transform: rotate(-10deg) translate(-30px, 0); }
    to { transform: rotate(-45deg) translate(-500px, 0); }
  }

  @keyframes fly4  {
    from { transform: rotate(10deg) translate(30px, 0); }
    to { transform: rotate(45deg) translate(500px, 0); }
  }

  .cards_less_680 .card.init:nth-child(1) {
    transform: rotate(-10deg) translate(-30px, 0);
  }

  .cards_less_680 .card.init:nth-child(2) {
    transform: rotate(10deg) translate(30px, 0);
  }

  .cards .card:nth-child(1),
  .cards .card:nth-child(2) {
    transition: 0.75s;
  }

  .cards .card:nth-child(1) .front > div,
  .cards .card:nth-child(2) .front > div {
    visibility: hidden;
    transform: rotateY(0) !important;
  }

  .cards .card.init .front > div {
    visibility: visible;
  }

  .cards_more_680 {
    display: none;
  }

  .cards_less_680 {
    display: block;
  }

  .announce__text .body_link {
    margin-left: 5px;
  }

  .cards {
    margin: 30px auto;
    max-width: 740px;
  }

  .base.card,
  .card_holder .card {
    transform-origin: 50% 680px;
    width: 146px;
  }

  .cards .card {
    font-size: 200px;
  }

  .cards_preview {
    height: 225px;
  }

  .cover {
    min-height: 617px;
  }

  .cover_bg > div {
    min-height: 618px;
  }

  .cover:after {
    background-size: 510px;
  }

  .cover .cubes > div:nth-child(1) {
    background-size: 220px;
    left: calc(50% - 300px);
  }

  .cover .cubes > div:nth-child(2) {
    background-size: 275px;
    left: calc(50% - 160px);
  }
}

@media (max-width: 800px) {
  .cover .cubes > div:nth-child(1) {
    background-size: 160px;
    left: calc(50% - 190px);
  }

  .cover .cubes > div:nth-child(2) {
    background-size: 200px;
    left: calc(50% - 85px);
  }
}

@media (max-width: 730px) {
  .cover:after {
    background-size: 480px;
  }
}

@media (max-width: 700px) {
  .cover:after {
    transform: translateX(50px);
  }

  .cover .cubes > div:nth-child(1) {
    left: calc(50% - 180px);
  }

  .cover .cubes > div:nth-child(2) {
    background-size: 200px;
    left: calc(50% - 80px);
  }
}

@media (max-width: 580px) {
  .cover {
    min-height: 504px;
  }

  .cover:after {
    background-size: 360px;
  }

  .cover .cubes > div:nth-child(1) {
    background-size: 125px;
    left: calc(50% - 160px);
  }

  .cover .cubes > div:nth-child(2) {
    background-size: 150px;
  }
}

@media (max-width: 460px) {
  .cards {
    margin: 0 auto;
  }

  .cards_preview.cards_less_680 {
    transform: scale(0.7);
  }

  .cover:after {
    background-size: 310px;
    transform: translateX(40px);
  }

  .cover .cubes > div:nth-child(1) {
    background-size: 105px;
    left: calc(50% - 120px);
    top: calc(50% + 50px);
  }

  .cover .cubes > div:nth-child(2) {
    background-size: 125px;
    left: calc(50% - 60px);
    top: calc(50% + 50px);
  }
}

@media (max-width: 400px) {
  .cover:after {
    transform: translateX(0);
  }

  .cover .cubes > div:nth-child(1) {
    top: calc(50% + 35px);
  }

  .cover .cubes > div:nth-child(2) {
    top: calc(50% + 35px);
  }
}