html {
  height: 100vh;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background-color: black;
  color: #fff;
  /* background-image: url('http://cdn30.us1.fansshare.com/image/tetris/tetris-wallpaper-pattern-background-background-853431515.jpg'); */
  /* background-image: url('https://img2.badfon.ru/original/1920x1080/3/81/minimalizm-cveta-bloki-tetris.jpg'); */
  background-image: url("images/bg-layer1.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  max-height: 100vh;
  max-width: 100vw;
  display: grid;
  grid-template-columns: 1fr 3fr 1fr;
  grid-template-rows: 45vh 50vh 5vh;
  justify-items: center;
  position: relative;
  color: #fff;
}

/* основной блок с контентом grid-элемент */
#root {
  width: 100%;
  text-align: center;
  grid-column: 2/3;
  grid-row: 1/3;
  display: flex;
  flex-flow: column;
  align-items: center;
  justify-content: flex-start;
  padding: 10px 0;
  position: relative;
}

/* стили для блока #root */
#root h1 {
  font-family: "Press Start 2P", Consolas, monospace;
  color: white;
}
#root canvas {
  display: block;
  margin: 0 auto;
  height: 85vh;
}
ul {
  list-style-type: none;
  padding: 0;
}

a {
  text-decoration: none;
  color: #fff;
  cursor: pointer;
}

.exit-screen,
#btnExit,
#btnSound {
  grid-column: 2/3;
  grid-row: 1/3;
}

/* стили для основных контейнеров */
.exit-screen,
.mainmenu,
.content {
  align-self: center;
  display: flex;
  flex-flow: column;
  justify-content: space-evenly;
  margin-top: 20px;
  width: 100%;
  height: 85vh;
  padding: 0 10px 5px 10px;
  background-color: rgba(251, 251, 251, 0.5);
  transform-style: preserve-3d;
  transform: perspective(1000px);
  border-radius: 0.8rem;
  color: hsl(220, 50%, 90%);
  background: linear-gradient(to right, hsl(210, 30%, 20%), hsl(255, 30%, 25%));
  box-shadow: 0.4rem 0.4rem 10.2rem 0.2rem hsla(236, 50%, 50%, 0.4);
  transition: display 0.6s cubic-bezier(0.075, 0.82, 0.165, 1);
}
.content {
  height: auto;
}
.content .hidding {
  background-color: rgba(251, 251, 251, 0);
}
.game {
  background-color: linear-gradient(
    to right,
    hsl(210, 30%, 20%),
    hsl(255, 30%, 25%)
  );
}

/* таблица рекордов */
#recordsBoard {
  border: solid 2px rgba(251, 251, 251, 0.3);
  border-radius: 0.8rem;
}
.row {
  height: 25px;
  display: flex;
  justify-content: space-evenly;
  align-items: center;
}
.row span:nth-child(n + 1) {
  flex: 1; /*размер ячеек в таблице*/
}
.row:nth-child(2n + 2) {
  background-color: rgba(
    251,
    251,
    251,
    0.1
  ); /*чередование светлой/темной полос*/
}

/* стили страниц */
.rules-page,
.records-page {
  width: 100%;
}

.iconIMG {
  width: 30px;
  height: 30px;
  margin: 5px;
}
.control li {
  display: flex;
  justify-content: center;
  align-content: center;
}
.iconIMG + span {
  align-self: center;
  margin: 10px 0;
}

.btnContrl i {
  font-size: 40px;
  margin: 10px;
}

/* стили для окна сохранения */
.exit-screen {
  margin-top: 30px;
  align-items: center;
  font-family: "Press Start 2P", Consolas, monospace;
}
.exit-screen a {
  text-align: center;
  max-width: 200px;
}
.exit-screen p {
  display: flex;
  flex-flow: row wrap;
  justify-content: center;
}
.input-name {
  width: 80%;
  height: 50px;
  font-size: 1.8rem;
  color: hsl(220, 50%, 90%);
  background: linear-gradient(to right, hsl(210, 30%, 20%), hsl(255, 30%, 25%));
  box-shadow: 0.4rem 0.4rem 10.2rem 0.2rem hsla(236, 50%, 50%, 0.4);
  border-radius: 0.8rem;
  padding: 1.4rem 3.2rem;
  outline: none;
  transition: 0.2s;
  text-align: center;
}
.input-name:hover,
.input-name:focus {
  transform: translateY(-0.2rem);
  box-shadow: 0 0 4.4rem 0.2rem hsla(236, 50%, 50%, 0.4);
}
.input-name:focus {
  box-shadow: 0 0 4.4rem 0.2rem hsla(236, 50%, 50%, 0.4),
    0 0 0 0.4rem hsl(220, 25%, 10%), 0 0 0 0.5rem hsl(200, 65%, 54%);
}

/* полосы на главном экране */
.line {
  position: absolute;
  background-color: hsl(200, 65%, 54%);
  box-shadow: 0px 0px 12px hsl(200, 65%, 54%);
  height: calc(100% - 20px);
  overflow: hidden;
  border-radius: 0;
  width: 2px;
}
.line.left {
  top: 10px;
  left: 22px;
}
.line.right {
  top: 10px;
  right: 22px;
}
.line .scanner {
  position: absolute;
  top: 0;
  left: 0;
  background: white;
  width: 100%;
  border-radius: 50%;
  animation: scanner-loop 3s ease-in-out infinite;
  background: linear-gradient(
    rgba(255, 255, 255, 0),
    rgba(255, 255, 255, 1),
    rgba(255, 255, 255, 0)
  );
  height: 50%;
}
@keyframes scanner-loop {
  0% {
    top: 0;
  }
  50% {
    top: 100%;
  }
  100% {
    top: 0;
  }
}

/* стили для блрка с parallax */
#parallax1,
#parallax2 {
  grid-column: 1/4;
  grid-row: 1/4;
  position: relative;
  top: -4vh;
  left: -54vw;
  z-index: -1;
}
.bg-image {
  /*фоновая картинка*/
  position: absolute;
  top: 0;
  left: 0;
}
.pixaby {
  width: 50px;
  height: 50px;
}

/* footer grid-элемент */
footer {
  grid-column: 1/4;
  grid-row: 3/4;
}
footer p {
  margin: 8px;
}
/* header веутри #root */
header {
  align-content: flex-start;
}

/* класс для скрыть/показать */
.hide {
  display: none;
  width: 0;
}

.hiding .exit-screen {
  opacity: 0;
  transition: opacity 0.6s;
}

img {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
}

/* for button HOMEPAGE */
.button_base {
  margin: 0;
  border: 0;
  font-size: 18px;
  position: relative;
  top: 0;
  left: 50%;
  margin-left: -100px;
  width: 200px;
  height: 40px;
  text-align: center;
  box-sizing: border-box;
  user-select: none;
  cursor: default;
  font-family: "Press Start 2P", Consolas, monospace;
  box-shadow: 0.4rem 0.4rem 10.2rem 0.2rem hsla(236, 50%, 50%, 0.4);
}

.button_base:hover {
  cursor: pointer;
}
.b07_3d_double_roll {
  perspective: 500px;
  transform-style: preserve-3d;
}

.b07_3d_double_roll div {
  position: absolute;
  text-align: center;
  padding: 10px;
  border: #1798db solid 1px;
  pointer-events: none;
  box-sizing: border-box;
}

.b07_3d_double_roll div:nth-child(1) {
  color: #fff;
  background-color: rgb(244, 184, 35);
  z-index: 0;
  width: 100%;
  height: 50px;
  clip: rect(0px, 100px, 50px, 0px);
  position: absolute;
  transition: all 0.2s ease;
  transform: rotateX(0deg);
  transform-origin: 50% 50% -25px;
}

.b07_3d_double_roll div:nth-child(2) {
  color: #fff;
  background-color: #1798db;
  z-index: -1;
  width: 100%;
  height: 50px;
  clip: rect(0px, 100px, 50px, 0px);
  position: absolute;
  transform: rotateX(90deg);
  transition: all 0.2s ease;
  transform-origin: 50% 50% -25px;
}

.b07_3d_double_roll div:nth-child(3) {
  color: #fff;
  background-color: rgb(244, 184, 35);
  z-index: 0;
  width: 100%;
  height: 50px;
  clip: rect(0px, 200px, 50px, 100px);
  position: absolute;
  transition: all 0.2s ease 0.1s;
  transform: rotateX(0deg);
  transform-origin: 50% 50% -25px;
}

.b07_3d_double_roll div:nth-child(4) {
  color: #fff;
  background-color: #1798db;
  z-index: -1;
  width: 100%;
  height: 50px;
  clip: rect(0px, 200px, 50px, 100px);
  position: absolute;
  transform: rotateX(-90deg);
  transition: all 0.2s ease 0.1s;
  transform-origin: 50% 50% -25px;
}

.b07_3d_double_roll:hover div:nth-child(1) {
  background-color: #1798db;
  transition: all 0.2s ease;
  transform: rotateX(-90deg);
}

.b07_3d_double_roll:hover div:nth-child(2) {
  color: #ffffff;
  transition: all 0.2s ease;
  transform: rotateX(0deg);
}

.b07_3d_double_roll:hover div:nth-child(3) {
  background-color: #1798db;
  transition: all 0.2s ease 0.1s;
  transform: rotateX(90deg);
}

.b07_3d_double_roll:hover div:nth-child(4) {
  color: #ffffff;
  transition: all 0.2s ease 0.1s;
  transform: rotateX(0deg);
}

/* for button MENU */
.btn:after {
  background: linear-gradient(to right, hsl(210, 30%, 20%), hsl(255, 30%, 25%));
}
.b-green,
.b-green:before {
  background: rgba(73, 155, 234, 1);
  background: linear-gradient(
    45deg,
    rgba(73, 155, 234, 1) 0%,
    rgba(26, 188, 156, 1) 100%
  );
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#499bea', endColorstr='#1abc9c', GradientType=1 );
}

.b-red,
.b-red:before {
  background: rgba(234, 110, 72, 1);
  background: linear-gradient(
    45deg,
    rgba(234, 110, 72, 1) 0%,
    rgba(188, 26, 99, 1) 100%
  );
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ea6e48', endColorstr='#bc1a63', GradientType=1 );
}

.b-orange,
.b-orange:before {
  background: rgba(255, 193, 7, 1);
  background: linear-gradient(
    45deg,
    rgba(255, 193, 7, 1) 0%,
    rgba(255, 87, 34, 1) 100%
  );
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffc107', endColorstr='#ff5722', GradientType=1 );
}

.btn {
  display: inline-block;
  position: relative;
  width: 75%;
  border-radius: 3px;
  text-decoration: none;
  padding: 0.5em;
  margin: 0.5em;
  font-size: 1.5em;
  font-weight: bold;
  transition: all 0.5s;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: "Press Start 2P", Consolas, monospace;
}
.btn:hover {
  text-shadow: 0px 0px 0px rgba(255, 255, 255, 0.75);
}
.btn:hover:after {
  left: 100%;
  top: 100%;
  bottom: 100%;
  right: 100%;
}
.btn:before {
  content: "";
  display: block;
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 0;
  z-index: -1;
  border-radius: 5px;
  transition: all 0.5s;
}
.btn:after {
  content: "";
  display: block;
  position: absolute;
  left: 2px;
  top: 2px;
  bottom: 2px;
  right: 2px;
  z-index: -1;
  border-radius: 5px;
  transition: all 0.5s;
}

/* for button EXIT */
section a,
#btnExit,
#btnSound {
  width: 50px;
  height: 50px;
  position: absolute;
  right: 5px;
  top: 0;
  margin-top: -25px;
  margin-right: -25px;
  background-color: linear-gradient(
    to right,
    hsl(210, 30%, 20%),
    hsl(255, 30%, 25%)
  );
  border-radius: 25px;
  opacity: 1;
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  box-shadow: 0px 0px 30px 0px hsla(236, 50%, 50%, 0.4);
  cursor: pointer;
}
section a > span,
#btnExit > span {
  background-color: #f5a700;
  display: block;
  height: 6px;
  border-radius: 6px;
  position: relative;
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  position: absolute;
  top: 50%;
  margin-top: -3px;
  left: 9px;
  width: 32px;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  justify-content: space-between;
}
section a > span span,
#btnExit > span span {
  display: block;
  background-color: #ed7f00;
  width: 6px;
  height: 6px;
  border-radius: 6px;
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  position: absolute;
  left: 0;
  top: 0;
}
section a > span.left,
#btnExit > span.left {
  transform: rotate(45deg);
  transform-origin: center;
}
section a > span.left .circle-left,
#btnExit > span.left .circle-left {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 0;
}
section a > span.left .circle-right,
#btnExit > span.left .circle-right {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 26px;
}
section a > span.right,
#btnExit > span.right {
  transform: rotate(-45deg);
  transform-origin: center;
}
section a > span.right .circle-left,
#btnExit > span.right .circle-left {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 0;
}
section a > span.right .circle-right,
#btnExit > span.right .circle-right {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 26px;
}
section a:hover > span,
#btnExit:hover > span {
  background-color: #2faee0;
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
}
section a:hover > span span,
#btnExit:hover > span span {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  background-color: #008ac9;
}
section a:hover > span.left .circle-left,
#btnExit:hover > span.left .circle-left {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 26px;
}
section a:hover > span.left .circle-right,
#btnExit:hover > span.left .circle-right {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 0;
}
section a:hover > span.right .circle-left,
#btnExit:hover > span.right .circle-left {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 26px;
}
section a:hover > span.right .circle-right,
#btnExit:hover > span.right .circle-right {
  transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
  margin-left: 0;
}

/* for button Sound */
#btnSound {
  position: absolute;
  top: 60px;
  right: 5px;
  cursor: pointer;
  height: 50px;
  width: 50px;
  font-size: 30px;
}
.icon {
  display: block;
  top: 5px;
  left: 12px;
  color: rgba(255, 193, 7, 1);
  position: relative;
}
.icon:hover {
  color: rgba(73, 155, 234, 1);
}
.icon-volume-mute {
  position: absolute;
  top: -25px;
  right: 15px;
}

@media (max-width: 600px) {
  body {
    grid-template-columns: 1fr 12fr 1fr;
    grid-template-rows: 45vh 50vh 5vh;
  }
  .exit-screen,
  .mainmenu,
  .content {
    padding: 5px;
  }
  #root canvas {
    height: 65vh;
  }
}
@media (max-width: 440px) {
  #root canvas {
    height: 50vh;
  }
  h1 {
    font-size: 16px;
  }
  h2 {
    font-size: 14px;
  }
  .btn {
    font-size: 1.2rem;
  }
  #btnExit {
    right: 30px;
    top: 110%;
  }
  #btnSound {
    right: 90px;
    top: 110%;
  }
}