body,html {
    margin: 0;
    padding: 0;
    background: #faf8ef;
    color: #776e65;
    font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
    font-size: 18px
  }
  
  body {
    margin: 80px 0
  }
  
  .heading:after {
    content: "";
    display: block;
    clear: both
  }
  
  h1.title {
    font-size: 80px;
    font-weight: bold;
    margin: 0;
    display: block;
    float: left
  }
  
  @keyframes move-up {
    0% {
        top: 25px;
        opacity: 1
    }
  
    100% {
        top: -50px;
        opacity: 0
    }
  }
  
  .scores-container {
    float: right;
    text-align: right
  }
  
  .best-container,.score-container {
    position: relative;
    display: inline-block;
    background: #bbada0;
    padding: 15px 25px;
    font-size: 25px;
    height: 25px;
    line-height: 47px;
    font-weight: bold;
    border-radius: 3px;
    color: white;
    margin-top: 8px;
    text-align: center
  }
  
  .best-container:after,.score-container:after {
    position: absolute;
    width: 100%;
    top: 10px;
    left: 0;
    text-transform: uppercase;
    font-size: 13px;
    line-height: 13px;
    text-align: center;
    color: #eee4da
  }
  
  .best-container .score-addition,.score-container .score-addition {
    position: absolute;
    right: 30px;
    color: red;
    font-size: 25px;
    line-height: 25px;
    font-weight: bold;
    color: rgba(119, 110, 101, 0.9);
    z-index: 100;
    animation: move-up 600ms ease-in;
    animation-fill-mode: both
  }
  
  .score-container:after {
    content: "Score"
  }
  
  .best-container:after {
    content: "Best"
  }
  
  p {
    margin-top: 0;
    margin-bottom: 10px;
    line-height: 1.65
  }
  
  a {
    color: #776e65;
    font-weight: bold;
    text-decoration: underline;
    cursor: pointer
  }
  
  strong.important {
    text-transform: uppercase
  }
  
  hr {
    border: none;
    border-bottom: 1px solid #d8d4d0;
    margin-top: 20px;
    margin-bottom: 30px
  }
  
  .container {
    width: 500px;
    margin: 0 auto
  }
  
  @keyframes fade-in {
    0% {
        opacity: 0
    }
  
    100% {
        opacity: 1
    }
  }
  
  .game-container {
    margin-top: 40px;
    position: relative;
    padding: 15px;
    cursor: default;
    user-select: none;
    touch-action: none;
    background: #bbada0;
    border-radius: 6px;
    width: 500px;
    height: 500px;
    box-sizing: border-box
  }
  
  .game-container .game-message {
    display: none;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(238, 228, 218, 0.5);
    z-index: 100;
    text-align: center;
    animation: fade-in 800ms ease 1200ms;
    animation-fill-mode: both
  }
  
  .game-container .game-message p {
    font-size: 60px;
    font-weight: bold;
    height: 60px;
    line-height: 60px;
    margin-top: 222px
  }
  
  .game-container .game-message .lower {
    display: block;
    margin-top: 59px
  }
  
  .game-container .game-message a {
    display: inline-block;
    background: #8f7a66;
    border-radius: 3px;
    padding: 0 20px;
    text-decoration: none;
    color: #f9f6f2;
    height: 40px;
    line-height: 42px;
    margin-left: 9px
  }
  
  .game-container .game-message a.keep-playing-button {
    display: none
  }
  
  .game-container .game-message.game-won {
    background: rgba(237, 194, 46, 0.5);
    color: #f9f6f2
  }
  
  .game-container .game-message.game-won a.keep-playing-button {
    display: inline-block
  }
  
  .game-container .game-message.game-over,.game-container .game-message.game-won {
    display: block
  }
  
  .grid-container {
    position: absolute;
    z-index: 1
  }
  
  .grid-row {
    margin-bottom: 15px
  }
  
  .grid-row:last-child {
    margin-bottom: 0
  }
  
  .grid-row:after {
    content: "";
    display: block;
    clear: both
  }
  
  .grid-cell {
    width: 106.25px;
    height: 106.25px;
    margin-right: 15px;
    float: left;
    border-radius: 3px;
    background: rgba(238, 228, 218, 0.35)
  }
  
  .grid-cell:last-child {
    margin-right: 0
  }
  
  .tile-container {
    position: absolute;
    z-index: 2
  }
  
  .tile,.tile .tile-inner {
    width: 107px;
    height: 107px;
    line-height: 107px
  }
  
  .tile.tile-position-1-1 {
    transform: translate(0px, 0px)
  }
  
  .tile.tile-position-1-2 {
    transform: translate(0px, 121px)
  }
  
  .tile.tile-position-1-3 {
    transform: translate(0px, 242px)
  }
  
  .tile.tile-position-1-4 {
    transform: translate(0px, 363px)
  }
  
  .tile.tile-position-2-1 {
    transform: translate(121px, 0px)
  }
  
  .tile.tile-position-2-2 {
    transform: translate(121px, 121px)
  }
  
  .tile.tile-position-2-3 {
    transform: translate(121px, 242px)
  }
  
  .tile.tile-position-2-4 {
    transform: translate(121px, 363px)
  }
  
  .tile.tile-position-3-1 {
    transform: translate(242px, 0px)
  }
  
  .tile.tile-position-3-2 {
    transform: translate(242px, 121px)
  }
  
  .tile.tile-position-3-3 {
    transform: translate(242px, 242px)
  }
  
  .tile.tile-position-3-4 {
    transform: translate(242px, 363px)
  }
  
  .tile.tile-position-4-1 {
    transform: translate(363px, 0px)
  }
  
  .tile.tile-position-4-2 {
    transform: translate(363px, 121px)
  }
  
  .tile.tile-position-4-3 {
    transform: translate(363px, 242px)
  }
  
  .tile.tile-position-4-4 {
    transform: translate(363px, 363px)
  }
  
  .tile {
    position: absolute;
    transition: 100ms ease-in-out;
    transition-property: transform
  }
  
  .tile .tile-inner {
    border-radius: 3px;
    background: #eee4da;
    text-align: center;
    font-weight: bold;
    z-index: 10;
    font-size: 55px
  }
  
  .tile.tile-2 .tile-inner {
    background: #eee4da;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0)
  }
  
  .tile.tile-4 .tile-inner {
    background: #ede0c8;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0), inset 0 0 0 1px rgba(255, 255, 255, 0)
  }
  
  .tile.tile-8 .tile-inner {
    color: #f9f6f2;
    background: #f2b179
  }
  
  .tile.tile-16 .tile-inner {
    color: #f9f6f2;
    background: #f59563
  }
  
  .tile.tile-32 .tile-inner {
    color: #f9f6f2;
    background: #f67c5f
  }
  
  .tile.tile-64 .tile-inner {
    color: #f9f6f2;
    background: #f65e3b
  }
  
  .tile.tile-128 .tile-inner {
    color: #f9f6f2;
    background: #edcf72;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.2381), inset 0 0 0 1px rgba(255, 255, 255, 0.14286);
    font-size: 45px
  }
  
  @media screen and (max-width: 520px) {
    .tile.tile-128 .tile-inner {
        font-size:25px
    }
  }
  
  .tile.tile-256 .tile-inner {
    color: #f9f6f2;
    background: #edcc61;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.31746), inset 0 0 0 1px rgba(255, 255, 255, 0.19048);
    font-size: 45px
  }
  
  @media screen and (max-width: 520px) {
    .tile.tile-256 .tile-inner {
        font-size:25px
    }
  }
  
  .tile.tile-512 .tile-inner {
    color: #f9f6f2;
    background: #edc850;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.39683), inset 0 0 0 1px rgba(255, 255, 255, 0.2381);
    font-size: 45px
  }
  
  @media screen and (max-width: 520px) {
    .tile.tile-512 .tile-inner {
        font-size:25px
    }
  }
  
  .tile.tile-1024 .tile-inner {
    color: #f9f6f2;
    background: #edc53f;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.47619), inset 0 0 0 1px rgba(255, 255, 255, 0.28571);
    font-size: 35px
  }
  
  @media screen and (max-width: 520px) {
    .tile.tile-1024 .tile-inner {
        font-size:15px
    }
  }
  
  .tile.tile-2048 .tile-inner {
    color: #f9f6f2;
    background: #edc22e;
    box-shadow: 0 0 30px 10px rgba(243, 215, 116, 0.55556), inset 0 0 0 1px rgba(255, 255, 255, 0.33333);
    font-size: 35px
  }
  
  @media screen and (max-width: 520px) {
    .tile.tile-2048 .tile-inner {
        font-size:15px
    }
  }
  
  .tile.tile-super .tile-inner {
    color: #f9f6f2;
    background: #3c3a32;
    font-size: 30px
  }
  
  @media screen and (max-width: 520px) {
    .tile.tile-super .tile-inner {
        font-size:10px
    }
  }
  
  @keyframes appear {
    0% {
        opacity: 0;
        transform: scale(0)
    }
  
    100% {
        opacity: 1;
        transform: scale(1)
    }
  }
  
  .tile-new .tile-inner {
    animation: appear 200ms ease 100ms;
    animation-fill-mode: backwards
  }
  
  @keyframes pop {
    0% {
        transform: scale(0)
    }
  
    50% {
        transform: scale(1.2)
    }
  
    100% {
        transform: scale(1)
    }
  }
  
  .tile-merged .tile-inner {
    z-index: 20;
    animation: pop 200ms ease 100ms;
    animation-fill-mode: backwards
  }
  
  .above-game:after {
    content: "";
    display: block;
    clear: both
  }
  
  .game-intro {
    float: left;
    line-height: 42px;
    margin-bottom: 0
  }
  
  .restart-button {
    display: inline-block;
    background: #8f7a66;
    border-radius: 3px;
    padding: 0 20px;
    text-decoration: none;
    color: #f9f6f2;
    height: 40px;
    line-height: 42px;
    display: block;
    text-align: center;
    float: right
  }
  
  .game-explanation {
    margin-top: 50px
  }
  
  @media screen and (max-width: 520px) {
    body,html {
        font-size:15px
    }
  
    body {
        margin: 10px 0;
        padding: 0 20px
    }
  
    h1.title {
        font-size: 27px;
        margin-top: 15px
    }
  
    .container {
        width: 280px;
        margin: 0 auto
    }
  
    .best-container,.score-container {
        margin-top: 0;
        padding: 15px 10px;
        min-width: 40px
    }
  
    .heading {
        margin-bottom: 10px
    }
  
    .game-intro {
        width: 55%;
        display: block;
        box-sizing: border-box;
        line-height: 1.65
    }
  
    .restart-button {
        width: 42%;
        padding: 0;
        display: block;
        box-sizing: border-box;
        margin-top: 2px
    }
  
    .game-container {
        margin-top: 17px;
        position: relative;
        padding: 10px;
        cursor: default;
        user-select: none;
        touch-action: none;
        background: #bbada0;
        border-radius: 6px;
        width: 280px;
        height: 280px;
        box-sizing: border-box
    }
  
    .game-container .game-message {
        display: none;
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        background: rgba(238, 228, 218, 0.5);
        z-index: 100;
        text-align: center;
        animation: fade-in 800ms ease 1200ms;
        animation-fill-mode: both
    }
  
    .game-container .game-message p {
        font-size: 60px;
        font-weight: bold;
        height: 60px;
        line-height: 60px;
        margin-top: 222px
    }
  
    .game-container .game-message .lower {
        display: block;
        margin-top: 59px
    }
  
    .game-container .game-message a {
        display: inline-block;
        background: #8f7a66;
        border-radius: 3px;
        padding: 0 20px;
        text-decoration: none;
        color: #f9f6f2;
        height: 40px;
        line-height: 42px;
        margin-left: 9px
    }
  
    .game-container .game-message a.keep-playing-button {
        display: none
    }
  
    .game-container .game-message.game-won {
        background: rgba(237, 194, 46, 0.5);
        color: #f9f6f2
    }
  
    .game-container .game-message.game-won a.keep-playing-button {
        display: inline-block
    }
  
    .game-container .game-message.game-over,.game-container .game-message.game-won {
        display: block
    }
  
    .grid-container {
        position: absolute;
        z-index: 1
    }
  
    .grid-row {
        margin-bottom: 10px
    }
  
    .grid-row:last-child {
        margin-bottom: 0
    }
  
    .grid-row:after {
        content: "";
        display: block;
        clear: both
    }
  
    .grid-cell {
        width: 57.5px;
        height: 57.5px;
        margin-right: 10px;
        float: left;
        border-radius: 3px;
        background: rgba(238, 228, 218, 0.35)
    }
  
    .grid-cell:last-child {
        margin-right: 0
    }
  
    .tile-container {
        position: absolute;
        z-index: 2
    }
  
    .tile,.tile .tile-inner {
        width: 58px;
        height: 58px;
        line-height: 58px
    }
  
    .tile.tile-position-1-1 {
        transform: translate(0px, 0px)
    }
  
    .tile.tile-position-1-2 {
        transform: translate(0px, 67px)
    }
  
    .tile.tile-position-1-3 {
        transform: translate(0px, 135px)
    }
  
    .tile.tile-position-1-4 {
        transform: translate(0px, 202px)
    }
  
    .tile.tile-position-2-1 {
        transform: translate(67px, 0px)
    }
  
    .tile.tile-position-2-2 {
        transform: translate(67px, 67px)
    }
  
    .tile.tile-position-2-3 {
        transform: translate(67px, 135px)
    }
  
    .tile.tile-position-2-4 {
        transform: translate(67px, 202px)
    }
  
    .tile.tile-position-3-1 {
        transform: translate(135px, 0px)
    }
  
    .tile.tile-position-3-2 {
        transform: translate(135px, 67px)
    }
  
    .tile.tile-position-3-3 {
        transform: translate(135px, 135px)
    }
  
    .tile.tile-position-3-4 {
        transform: translate(135px, 202px)
    }
  
    .tile.tile-position-4-1 {
        transform: translate(202px, 0px)
    }
  
    .tile.tile-position-4-2 {
        transform: translate(202px, 67px)
    }
  
    .tile.tile-position-4-3 {
        transform: translate(202px, 135px)
    }
  
    .tile.tile-position-4-4 {
        transform: translate(202px, 202px)
    }
  
    .tile .tile-inner {
        font-size: 35px
    }
  
    .game-message p {
        font-size: 30px !important;
        height: 30px !important;
        line-height: 30px !important;
        margin-top: 90px !important
    }
  
    .game-message .lower {
        margin-top: 30px !important
    }
  }