html, body {
  margin: 0;
  padding: 0;
  background: #fff;
  color: #000;
  font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
  background: url('img/megabg.jpeg');
  background-attachment: fixed;
  background-size: cover;
  width: 100%;
  height: 100%;
}

body {
  /* Flexbox for centering on mobile */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow-x: hidden; /* Prevent horizontal scroll bars */
}

.heading:after {
  content: "";
  display: block;
  clear: both;
}

h1.title {
  color:#333;
  font-size: 36px;
  font-weight: bold;
  margin: 0;
  display: block;
  float: left;
}

#twitter-widget-0 {
  width: 100px !important;
  position: relative;
}

.footer > div{
  display:inline-block !important;
  width: auto !important;
  overflow:hidden;
}

.footer{
  width:188px;
  margin-left: auto;
  margin-right: auto;
  text-align:center;
}

@-webkit-keyframes move-up {
  0% { top: 25px; opacity: 1; }
  100% { top: -50px; opacity: 0; } 
}
@-moz-keyframes move-up {
  0% { top: 25px; opacity: 1; }
  100% { top: -50px; opacity: 0; } 
}
@keyframes move-up {
  0% { top: 25px; opacity: 1; }
  100% { top: -50px; opacity: 0; } 
}

@-webkit-keyframes fade-in-out {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; } 
}
@-moz-keyframes fade-in-out {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; } 
}
@keyframes fade-in-out {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; } 
}

a:hover {
  color: #000!important;
}

.scores-container {
  float: right;
  text-align: right; 
}

.game-container .doge-says, .game-container .katkoviesti {
  position: fixed;
  top: 0;
  left: 0;
  z-index:100;
}

.buttons-container {
  position: relative;
  cursor:pointer;
  left:50%;
  margin-left:-100px;
  text-align: center;
  width: 200px;
  top:10px;
  margin-bottom:22px;
}

.info-container, .hide-info, .katko-container {
  display: inline-block;
  border: 1px solid white;
  background: #ccc;
  padding: 10px 15px;
  height: 35px; /* Fixed height for better touch target */
  line-height: 15px;
  font-size:14px; /* Larger font for readability */
  font-weight: bold;
  border-radius: 3px;
  color: white;
  margin-top: 8px;
  text-align: center;
  cursor: pointer;
}

.info-container a, .hide-info a, .katko-container a {
  color:#222;
  text-decoration:none;
}

.score-container, .best-container {
  width: 60px;
  position: relative;
  display: inline-block;
  background: #ccc;
  padding: 15px 25px;
  height: 25px;
  line-height: 42px;
  font-weight: bold;
  border-radius: 3px;
  color: white;
  text-align: center; 
}
.score-container:after, .best-container:after {
  position: absolute;
  width: 100%;
  top: 10px;
  left: 0;
  text-transform: uppercase;
  font-size: 12px;
  line-height: 13px;
  text-align: center;
  color: #000; 
}
.score-container .score-addition, .best-container .score-addition {
  position: absolute;
  right: 30px;
  font-size: 26px;
  line-height: 20px;
  color: rgba(119, 110, 101, 0.9);
  z-index: 100;
  animation: move-up 1000ms ease-in;
  animation-fill-mode: both; 
}

.score-container:after { content: "Arjalaisuus"; }
.best-container:after { content: "Suurin piste"; }

p {
  margin-top: 0;
  font-weight: bold;
  margin-bottom: 10px;
  line-height: 1.65; 
}

a {
  color: #333;
  font-weight: bold;
  text-decoration: underline;
  cursor: pointer; 
}

.info-container:hover, .katko-container:hover {
  border: 1px solid black!important;
}

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; 
}

@-webkit-keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; } 
}
@-moz-keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; } 
}
@keyframes fade-in {
  0% { opacity: 0; }
  100% { opacity: 1; } 
}

.game-container {
  margin-top: 20px;
  position: relative;
  padding: 15px;
  cursor: default;
  /* Key mobile fixes: */
  touch-action: none; /* Stops browser scrolling while swiping */
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  background: rgba(0,0,0,0.1);
  border-radius: 6px;
  width: 500px;
  height: 500px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box; 
}

.game-container .game-message {
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: rgba(255,255,255,0.9);
  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: #ccc;
  border-radius: 3px;
  padding: 0 20px;
  text-decoration: none;
  color: #222;
  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-won, .game-container .game-message.game-over { 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(255,255,255,0.8);
}
.grid-cell:last-child { margin-right: 0; }

.tile-container {
  position: absolute;
  z-index: 2; 
}

.tile, .tile .tile-inner {
  width: 107px;
  height: 107px;
  -webkit-transform: translate3d(0, 0, 0);
  line-height: 116.25px; 
}
/* Desktop Tile Positions */
.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 {
  color: rgba(0,0,0,0);
  position: absolute;
  -webkit-transition: 100ms ease-in-out;
  -moz-transition: 100ms ease-in-out;
  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; 
}

/* Background Images for tiles */
.tile.tile-2 .tile-inner { background: #fff url('img/2.jpeg'); background-size: cover; }
.tile.tile-4 .tile-inner { background: #fff url('img/4.png'); background-size: cover; }
.tile.tile-8 .tile-inner { background: #fff url('img/8.jpeg'); background-size: cover;}
.tile.tile-16 .tile-inner { background: #fff url('img/16.jpg'); background-size: cover;}
.tile.tile-32 .tile-inner { background: #fff url('img/32.jpg'); background-size: cover;}
.tile.tile-64 .tile-inner { background: #fff url('img/64.jpg'); background-size: cover;}
.tile.tile-128 .tile-inner { background: #fff url('img/128.webp'); background-size: cover; font-size: 45px; }
.tile.tile-256 .tile-inner { background: #fff url('img/256.jpg'); background-size: cover; font-size: 45px; }
.tile.tile-512 .tile-inner { background: #fff url('img/512.png'); background-size: cover; font-size: 45px; }
.tile.tile-1024 .tile-inner { background: #fff url('img/1024.jpg'); background-size: cover; font-size: 35px; }
.tile.tile-2048 .tile-inner { background: #fff url('img/2048.webp'); background-size: cover; font-size: 35px; }
.tile.tile-super .tile-inner { background: #fff url('img/super.jpg'); background-size: cover; font-size: 30px; }

@-webkit-keyframes appear {
  0% { opacity: 0; transform: scale(0); }
  100% { opacity: 1; transform: scale(1); } 
}
@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; 
}

.game-intro { margin-bottom: 0; }

.game-explanation {
  margin-top: 0px;
  text-align: center;
  font-size: 14px;
}

/* ==========================================================================
   MOBILE STYLES
   Triggered on screens smaller than 520px (covering most phones)
   ========================================================================== */
@media screen and (max-width: 520px) {
  html, body {
    font-size: 15px; 
    /* Ensure no horizontal scroll on mobile */
    width: 100vw;
    overflow-x: hidden;
  }

  body {
    margin: 10px 0;
    padding: 0 10px;
    box-sizing: border-box;
  }

  h1.title {
    font-size: 25px;
    margin-top: 15px; 
  }

  .container {
    width: 280px; /* Force small container */
    margin: 0 auto; 
  }

  .score-container, .best-container {
    margin-top: 0;
    padding: 15px 10px;
    min-width: 80px;
  }

  .heading { margin-bottom: 10px; }

  /* Keep explanation visible but small on mobile, or hide if preferred */
  .game-explanation {
    font-size: 12px;
    margin-bottom: 15px;
  }

  .game-container {
    margin-top: 20px;
    position: relative;
    padding: 10px;
    cursor: default;
    border-radius: 6px;
    width: 280px;
    height: 280px;
    box-sizing: border-box; 
  }

  .game-container .game-message p {
    font-size: 30px !important;
    height: 30px !important;
    line-height: 30px !important;
    margin-top: 90px !important; 
  }
  .game-container .game-message .lower {
    margin-top: 30px !important; 
  }

  /* Mobile Grid Dimensions */
  .grid-container { position: absolute; z-index: 1; }
  .grid-row { margin-bottom: 10px; }
  .grid-row:last-child { margin-bottom: 0; }
  
  .grid-cell {
    width: 57.5px;
    height: 57.5px;
    margin-right: 10px;
    float: left;
    border-radius: 3px;
  }
  .grid-cell:last-child { margin-right: 0; }

  .tile-container { position: absolute; z-index: 2; }
  .tile, .tile .tile-inner {
    width: 58px;
    height: 58px;
    line-height: 67.5px; 
  }

  /* Mobile Tile Translations (re-calculated for 280px grid) */
  .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); }

  /* Adjust font sizes for mobile tiles */
  .tile .tile-inner { font-size: 35px; }
  
  .tile.tile-128 .tile-inner, 
  .tile.tile-256 .tile-inner, 
  .tile.tile-512 .tile-inner {
    font-size: 25px; 
  }
  
  .tile.tile-1024 .tile-inner,
  .tile.tile-2048 .tile-inner {
    font-size: 15px; 
  }
  
  .tile.tile-super .tile-inner {
    font-size: 10px; 
  }
}