@font-face {
  font-family: Lato;
  font-weight: normal;
  font-style: normal;
  src: url("../fonts/lato/lato-light.eot");
  src: url("../fonts/lato/lato-light.eot?#iefix") format("embedded-opentype"), url("../fonts/lato/lato-light.woff") format("woff"), url("../fonts/lato/lato-light.ttf") format("truetype"), url("../fonts/lato/lato-light.svg#Lato") format("svg"); }

@font-face {
  font-family: Lato;
  font-weight: bold;
  font-style: normal;
  src: url("../fonts/lato/lato-regular.eot");
  src: url("../fonts/lato/lato-regular.eot?#iefix") format("embedded-opentype"), url("../fonts/lato/lato-regular.woff") format("woff"), url("../fonts/lato/lato-regular.ttf") format("truetype"), url("../fonts/lato/lato-regular.svg#Lato") format("svg"); }

@font-face {
  font-family: Lato;
  font-weight: normal;
  font-style: italic;
  src: url("../fonts/lato/lato-light-italic.eot");
  src: url("../fonts/lato/lato-light-italic.eot?#iefix") format("embedded-opentype"), url("../fonts/lato/lato-light-italic.woff") format("woff"), url("../fonts/lato/lato-light-italic.ttf") format("truetype"), url("../fonts/lato/lato-light-italic.svg#Lato") format("svg"); }

@font-face {
  font-family: Lato;
  font-weight: bold;
  font-style: italic;
  src: url("../fonts/lato/lato-regular-italic.eot");
  src: url("../fonts/lato/lato-regular-italic.eot?#iefix") format("embedded-opentype"), url("../fonts/lato/lato-regular-italic.woff") format("woff"), url("../fonts/lato/lato-regular-italic.ttf") format("truetype"), url("../fonts/lato/lato-regular-italic.svg#Lato") format("svg"); }

* {
  box-sizing: border-box; }

html {
  overflow-x: hidden;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar {
  width: 0;
}

body {
  padding: 0;
  margin: 0;
  background-color: white;
  font-family: Lato;
  font-size: 16px;
  line-height: 1.5;
  color: #606c71;
  overflow-x: hidden;
}

a {
  color: #1e6bb8;
  text-decoration: none; }
  a:hover {
    text-decoration: underline; }

.site-footer a {
  color: #3f8cb8;
}

p {
  text-align: justify;
}

.btn {
  display: inline-block;
  margin-bottom: 1rem;
  color: rgba(255, 255, 255, 0.7);
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  border-style: solid;
  border-width: 1px;
  border-radius: 0.3rem;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s;

  -webkit-transform: translateZ(1px);
  transform: translateZ(1px);
}
  .btn + .btn {
    margin-left: 1rem;}

 .btn::selection {
   background: transparent;
 }

 .btn::-moz-selection {
   background: transparent;
 }

.btn:hover {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3); }

@media screen and (min-width: 64em) {
  .btn {
    padding: 0.75rem 1rem; } }

@media screen and (min-width: 42em) and (max-width: 64em) {
  .btn {
    padding: 0.6rem 0.9rem;
    font-size: 0.9rem; } }

@media screen and (max-width: 42em) {
  .btn {
    display: block;
    width: 100%;
    padding: 0.75rem;
    font-size: 0.9rem; }
    .btn + .btn {
      margin-top: 1rem;
      margin-left: 0; } }

.page-header,
.preview {
  color: #fff;
  text-align: center;
}

 .page-header{
   background-color: #000055;
 }

 .preview{
   background-color: #1a1a1a;
   background-image: linear-gradient(#1a1a1a 33%, #000);
   position: relative;
 }

@media screen and (min-width: 64em) {
  .page-header,
  .preview {
    padding: 5rem 6rem; } }

@media screen and (min-width: 42em) and (max-width: 64em) {
  .page-header,
  .preview {
    padding: 3rem 4rem; } }

@media screen and (min-width: 42em){
  .page-header{
    background-image: linear-gradient(rgba(0,0,85,0) 50%, rgba(26,26,26,0), #1a1a1a), url(../images/stars.png), linear-gradient(#000055, #1a1a1a);
  }
}

@media screen and (max-width: 42em) {
  .page-header,
  .preview {
    padding: 2rem 1rem;
  }

  .page-header{
    background-image: linear-gradient(rgba(0,0,85,0) 50%, rgba(26,26,26,0), #1a1a1a), url(../images/stars-sd.png), linear-gradient(#000055, #1a1a1a);
  }
}



.project-name {
  margin-top: 0;
  margin-bottom: 0.1rem; }

@media screen and (min-width: 64em) {
  .project-name {
    font-size: 3.25rem; } }

@media screen and (min-width: 42em) and (max-width: 64em) {
  .project-name {
    font-size: 2.25rem; } }

@media screen and (max-width: 42em) {
  .project-name {
    font-size: 1.75rem; } }

.project-tagline {
  margin-bottom: 2rem;
  font-weight: normal;
  opacity: 0.7; }

@media screen and (min-width: 64em) {
  .project-tagline {
    font-size: 1.25rem; } }

@media screen and (min-width: 42em) and (max-width: 64em) {
  .project-tagline {
    font-size: 1.15rem; } }

@media screen and (max-width: 42em) {
  .project-tagline {
    font-size: 1rem; } }

.main-content :first-child {
  margin-top: 0; }
.main-content img {
  max-width: 100%; }
.main-content h1, .main-content h2, .main-content h3, .main-content h4, .main-content h5, .main-content h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: bold;
  color: #000055; }



@media screen and (min-width: 42em) {
  .main-content h1 {
    font-size: 3.1rem;
  }
  .main-content h2 {
    font-size: 2.75rem;
  }
  .main-content h3 {
    font-size: 2.4rem;
  }
  .main-content h4 {
    font-size: 2.05rem;
  }
  .main-content h5 {
    font-size: 1.7rem;
  }
  .main-content h6 {
    font-size: 1.35rem;
  }
}

@media screen and (max-width: 42em) {
  .main-content h1 {
    font-size: 2.25rem;
  }
  .main-content h2 {
    font-size: 2rem;
  }
  .main-content h3 {
    font-size: 1.75rem;
  }
  .main-content h4 {
    font-size: 1.5rem;
  }
  .main-content h5 {
    font-size: 1.25rem;
  }
  .main-content h6 {
    font-size: 1rem;
  }
}

.main-content p {
  margin-bottom: 1em; }
.main-content code {
  padding: 2px 4px;
  font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
  font-size: 0.9rem;
  color: #383e41;
  background-color: #f3f6fa;
  border-radius: 0.3rem; }
.main-content pre {
  padding: 0.8rem;
  margin-top: 0;
  margin-bottom: 1rem;
  font: 1rem Consolas, "Liberation Mono", Menlo, Courier, monospace;
  color: #567482;
  word-wrap: normal;
  background-color: #f3f6fa;
  border: solid 1px #dce6f0;
  border-radius: 0.3rem; }
  .main-content pre > code {
    padding: 0;
    margin: 0;
    font-size: 0.9rem;
    color: #567482;
    word-break: normal;
    white-space: pre;
    background: transparent;
    border: 0; }
.main-content .highlight {
  margin-bottom: 1rem; }
  .main-content .highlight pre {
    margin-bottom: 0;
    word-break: normal; }
.main-content .highlight pre, .main-content pre {
  padding: 0.8rem;
  overflow: auto;
  font-size: 0.9rem;
  line-height: 1.45;
  border-radius: 0.3rem; }
.main-content pre code, .main-content pre tt {
  display: inline;
  max-width: initial;
  padding: 0;
  margin: 0;
  overflow: initial;
  line-height: inherit;
  word-wrap: normal;
  background-color: transparent;
  border: 0; }
  .main-content pre code:before, .main-content pre code:after, .main-content pre tt:before, .main-content pre tt:after {
    content: normal; }
.main-content ul, .main-content ol {
  margin-top: 0; }
.main-content blockquote {
  padding: 0 1rem;
  margin-left: 0;
  color: #819198;
  border-left: 0.3rem solid #dce6f0; }
  .main-content blockquote > :first-child {
    margin-top: 0; }
  .main-content blockquote > :last-child {
    margin-bottom: 0; }
.main-content table {
  display: block;
  width: 100%;
  overflow: auto;
  word-break: normal;
  word-break: keep-all; }
  .main-content table th {
    font-weight: bold; }
  .main-content table th, .main-content table td {
    padding: 0.5rem 1rem;
    border: 1px solid #e9ebec; }
.main-content dl {
  padding: 0; }
  .main-content dl dt {
    padding: 0;
    margin-top: 1rem;
    font-size: 1rem;
    font-weight: bold; }
  .main-content dl dd {
    padding: 0;
    margin-bottom: 1rem; }
.main-content hr {
  height: 2px;
  padding: 0;
  margin: 1rem 0;
  background-color: #eff0f1;
  border: 0; }

@media screen and (min-width: 64em) {
  .main-content {
    max-width: 64rem;
    padding: 2rem 6rem;
    margin: 0 auto;
    font-size: 1.1rem; } }

@media screen and (min-width: 42em) and (max-width: 64em) {
  .main-content {
    padding: 2rem 4rem;
    font-size: 1.1rem; } }

@media screen and (max-width: 42em) {
  .main-content {
    padding: 2rem 1rem;
    font-size: 1rem; } }

.site-footer {
  padding-top: 2rem;
  margin-top: 2rem;
  text-align: center;
  color: #fff;
  background-color: #000055;
}

@media screen and (min-width: 42em) {
  .site-footer{
    background-image: linear-gradient(#1a1a1a, rgba(26,26,26,0) 50%, rgba(0,0,85,0)), url(../images/stars.png), linear-gradient(#1a1a1a, #000055);
  }
}

@media screen and (max-width: 42em) {
  .site-footer{
    background-image: linear-gradient(#1a1a1a, rgba(26,26,26,0) 50%, rgba(0,0,85,0)), url(../images/stars-sd.png), linear-gradient(#1a1a1a, #000055);
  }
}

.site-footer-owner {
  display: block; }

.site-footer-credits {
  color: #617178; }

@media screen and (min-width: 64em) {
  .site-footer {
    font-size: 1rem;
    padding: 5rem 6rem;
  }

  .site-footer-credits {
    font-size: 0.8rem
  }
}

@media screen and (min-width: 42em) and (max-width: 64em) {
  .site-footer {
    font-size: 1rem;
    padding: 3rem 4rem;
  }

  .site-footer-credits {
    font-size: 0.8rem
  }
}

@media screen and (max-width: 42em) {
  .site-footer {
    font-size: 0.9rem;
    padding: 2rem 1rem;
  }

  .site-footer-credits {
    font-size: 0.7rem
  }
}

.t3d-layer{
  margin-left: auto;
  margin-right: auto;
  max-width: 1000px;
}

@media screen and (min-width: 42em) {
  .lightfx,
  .t3d-layer{
    width: 60%;
  }

  .lightfx{
     margin-top: -40vw;
  }

  .t3d-layer{
    margin-top: -27.5vw;
  }
}

@media screen and (max-width: 42em) {
  .lightfx,
  .t3d-layer{
    width: 100%;
  }

  .lightfx{
    margin-top: -75vw;
  }

  .t3d-layer{
    margin-top: -47.5vw;
  }
}

.gravity {
  position: relative;
}

.preview {
  -moz-user-select: none;
  -webkit-user-select: none;
}

.lightfx{
  pointer-events: none;
}


/**** common ****/

.hide-back {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.hidden {
  visibility: hidden;
}

.no-opacity {
  opacity: 0;
}

.expand {
  width: 100%;
  height: 100%;
}

.absolute {
  position: absolute;
  top: 0;
  left: 0;
}

.animated {
  transition-duration: 0.35s;
  transition-timing-function: ease-in-out;
  transition-property: opacity, visibility, transform;
}

.shrink {
  -webkit-transform: scaleX(0) scaleY(0) scaleZ(0);
  transform: scaleX(0) scaleY(0) scaleZ(0);
}


.no-events::before {
  pointer-events: none;
}


/**** portfolio ****/

.portfolio {
  width: 30%;
  height: 21.2142857%;
  margin: 28.7857143% auto 0 auto;
  position: relative;
}

@media screen and (min-width: 64em) {
  .front.page {
    max-width: 208px;
    max-height: 117px;
  }
}

@media screen and (min-width: 42em) and (max-width: 64em) {
  .front.page {
    max-width: 14.4vw;
    max-height: 8.1vw;
  }
}

@media screen and (max-width: 42em) {
  .front.page {
    max-width: 27vw;
    max-height: 15.1875vw;
  }
}

.page {
  border-radius: 0.2625rem 0.2625rem 0.2625rem 0.2625rem /
    0.15rem 0.15rem 0.15rem 0.15rem;

  background-color: #e9eef1;
  background-position: center;
  color: darkslategray;
  box-shadow: 0 0 1px lightslategrey;
  cursor: pointer;
}

.page:hover {
  box-shadow:0 0 5px 2px skyblue,
    0 0 0 1px skyblue,
    inset 0 0 3px 2px skyblue;
}

.animated.scaler {
  transition-timing-function: cubic-bezier(.68,.06,.91,.38);
}

.back.page {
  background-image: url('data:image/png;base64,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');
}

.description {
  font-size: 0.75em;
  font-weight: bold;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: capitalize;
  width: 100%;
  position: absolute;
  left: 0;
  bottom: 0;
}

.outer-cover{
  background-color: seagreen;

  box-shadow: inset -0.08rem 0 0.08rem rgba(255, 255, 255, 0.2),
    inset 0.08rem 0 0.08rem rgba(255, 255, 255, 0.2),
    inset 0 0.1rem 0.1rem rgba(0, 0, 0, 0.35),
    inset 0 -0.15rem 0.15rem rgba(255, 255, 255, 0.2);
}

@media screen and (min-width: 42em) {
  .outer-cover{
    background-image: linear-gradient(to bottom, rgba(0,0,0,0.2), rgba(255,255,255,0.2)),
      linear-gradient(45deg, rgba(0, 0, 85, 0) 93%, rgba(25, 25, 75, 1) 93.5%),
      linear-gradient(-45deg, rgba(0, 0, 85, 0) 93%, rgba(25, 25, 75, 1) 93.5%),
      linear-gradient(to bottom, rgba(0, 0, 85, 0) 91.5%, rgba(25, 25, 75, 1) 92%),
      url(../images/portfolio-pattern.png);
  }
}

@media screen and (max-width: 42em) {
  .outer-cover{
    background-image: linear-gradient(to bottom, rgba(0,0,0,0.2), rgba(255,255,255,0.2)),
      linear-gradient(45deg, rgba(0, 0, 85, 0) 93%, rgba(25, 25, 75, 1) 93.5%),
      linear-gradient(-45deg, rgba(0, 0, 85, 0) 93%, rgba(25, 25, 75, 1) 93.5%),
      linear-gradient(to bottom, rgba(0, 0, 85, 0) 91.5%, rgba(25, 25, 75, 1) 92%),
      url(../images/portfolio-pattern-sd.png);
  }
}

.outer-cover,
.inner-cover {
  border-radius: 0.35rem 0.35rem 0.2rem 0.2rem;
}

.inner-cover {
  background-color: antiquewhite;

  background-image: linear-gradient(to top, rgba(0,0,0,0.2), rgba(255,255,255,0.2)),
    linear-gradient(45deg, rgba(0, 0, 85, 0) 93%, rgba(25, 25, 75, 1) 93.5%),
    linear-gradient(-45deg, rgba(0, 0, 85, 0) 93%, rgba(25, 25, 75, 1) 93.5%),
    linear-gradient(to right, #246f45 3%, rgba(36,111,69, 0) 3.5%),
    linear-gradient(to left, #246f45 3%, rgba(36,111,69, 0) 3.5%),
    linear-gradient(to bottom, #246f45 4.5%, rgba(36,111,69, 0) 5%);
}

@media screen and (min-width: 42em) {
  .outer-cover {
    background-size: auto, auto, auto, auto, 10vw;
  }
}

@media screen and (max-width: 42em) {
  .outer-cover {
    background-size: auto, auto, auto, auto, 20vw;
  }
}

/**** black hole ****/

.black-hole,
.group-hole {
  width: 100%;
}

.black-hole{
  border-radius: 40%;
}

.group-hole {
  z-index: -1;
}

@media screen and (min-width: 42em) {
  .black-hole{
    background-image: url(../images/stars.png);
  }
}

@media screen and (max-width: 42em) {
  .black-hole{
    background-image: url(../images/stars-sd.png);
  }
}

.root.black-hole{
  opacity: 0.95;
}

.group-hole .black-hole:nth-child(1){
  -webkit-transform: scale(0.75);
  transform: scale(0.75);
  opacity: 0.725;
  z-index: -1;
}

.group-hole .black-hole:nth-child(2){
  -webkit-transform: scale(0.65);
  transform: scale(0.65);
  opacity: 0.5;
  z-index: -2;
}

.group-hole .black-hole:nth-child(3){
  -webkit-transform: scale(0.55);
  transform: scale(0.55);
  opacity: 0.275;
  z-index: -3;
}

.group-hole .black-hole:nth-child(4){
  -webkit-transform: scale(0.45);
  transform: scale(0.45);
  opacity: 0.1;
  z-index: -4;
}

/**** halo ****/

.preview::before,
.preview::after {
  content: "";
  position: absolute;
  transition-property: opacity visibility transform;
  transition-duration: 3.25s;
  transition-timing-function: cubic-bezier(.35,.5,.51,.66);
  top: 50%;
  left: 50%;
}


.preview::before {
  z-index: 1;
  max-width: 412px;
  max-height: 412px;
  width: 50%;
  height: 50%;
  background: url(../images/halo.png) no-repeat;
  background-position: center center;
  background-size: auto 100%;
  opacity: 0;
  visibility: hidden;
  -webkit-transform: translate(-50%, -100%);
  transform: translate(-50%, -100%);
}

.halo::before {
  opacity: 1;
  visibility: visible;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.preview::after {
  z-index: 2;
  min-width: 2px;
  width: 0.175vw;
  height: 20vh;
  border-radius: 50%;
  box-shadow: 0 3px 2px rgba(255,255,255,0.75);
  background-image: linear-gradient(rgba(255,255,255,0), #fff);
  -webkit-transform: scaleY(0) translate(-50%, -100%);
  transform: scaleY(0) translate(-50%, -100%);
  -webkit-transform-origin: 50% -100%;
  transform-origin: 50% -100%;
}

.halo::after {
  opacity: 0.1;
  visibility: hidden;
  -webkit-transform: scaleY(1) translate(-50%, -100%);
  transform: scaleY(1) translate(-50%, -100%);
}


/**** overlay ****/

.overlay {
  position: absolute;
  left: 0;
  top: -50vh;
  width: 100%;
  height: calc(100% + 50vh);
  z-index: 3;

  background-image: linear-gradient(
    rgba(0,0,0,0),
    rgba(0,0,0,0.75) 33%,
    #000
  );

  display: -webkit-flex;
  display: -ms-flex;
  display: flex;
  -webkit-align-items: center;
  -ms-align-items: center;
  align-items: center;
}

.zoom {
  margin: 25vh auto 0 auto;
  border-radius: 0.2rem;
  max-width: 90vw;
  max-height: 90vh;
  box-shadow: 0 0 1px lightslategrey;
}