@use "sass:map";
@use "sass:math";

@import "helpers";
@import "fonts/clear-sans.css";

:root{
  --field-width: 500px;
  --grid-gap: 15px;
  --grid-size: 4;
  --grid-size-max: 6;
  --tile-size: calc(calc(var(--field-width) - calc(var(--grid-gap) * calc(var(--grid-size) + 1))) / var(--grid-size));
  --tile-border-radius: 3px;

  --game-container-margin-top: 40px;
  --game-container-background: #bbada0;
  --bright-text-color: #f9f6f2;

  --break-button-background-false: #c00;
  --break-button-color-false: #222;
  --break-button-background-true: #0c0;
  --break-button-color-true: #ddd;
}

$field-width: 500px;
$grid-spacing: 15px;
$grid-max-size: 10;
$tile-border-radius: 3px;

$mobile-threshold: $field-width + 20px;

$text-color: #776E65;
$bright-text-color: #f9f6f2;

$tile-color: #eee4da;
$tile-gold-color: #edc22e;
$tile-gold-glow-color: lighten($tile-gold-color, 15%);

$game-container-margin-top: 40px;
$game-container-background: #bbada0;

$game-background: #faf8ef;

/* Dark theme: */
$text-color-dark: #ccbbab;
$game-background-dark: #131313;
$title-color-dark: #e6d2bf;


$transition-speed: 100ms;

html, body {
  margin: 0;
  padding: 0;

  background: $game-background;
  color: $text-color;
  font-family: "Clear Sans", "Helvetica Neue", Arial, sans-serif;
  font-size: 18px;

  background-attachment: fixed;
  background-repeat: no-repeat;
  background-position: top center;
}

.noscript{
  background-color: #8f7a66;
  color: #faf8ef;
}

.heading {
  @include clearfix;
}

h1.title {
  font-size: 45px;
  font-weight: bold;
  margin: 0;
  display: block;
  float: left;
  transition: .25s color;
}

h1.title.dark{
  color: $title-color-dark;
}

@keyframes popdown {
  from {margin-top: -250px; opacity: 0;}
  to {margin-top: 250px; opacity: 1;}
}

@keyframes darken {
  from {opacity: 0;}
  to {opacity: 1;}
}

.lb-popup {
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 100;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  animation-name: darken;
  animation-duration: 0.4s;
}

.lb-popup-container {
  background-color: $game-background;
  width: 450px;
  margin: 250px auto;
  animation-name: popdown;
  animation-duration: 0.4s;
}

.lb-header {
  padding: 0 20px;
  display: -webkit-flex;
  display: flex;
  justify-content: space-between;
}

.lb-buttons {
  display: -webkit-flex;
  display: flex;
  justify-content: end;
  width: 20%;
  padding-top: 8px;

  * {
    text-decoration: none;
    font-size: 35px;
  }

  img {
    padding: 10px 10px 0 0;
    width: 35px;
    height: 35px;
  }
}

.lb-stats {
  margin: 0;
  padding: 0 20px 20px;
  counter-reset: leaderboard;
}

.lb-stat {
  display: -webkit-flex;
  display: flex;
  justify-content: space-between;

  &:not(:last-child) {
    margin-bottom: 10px;
  }

  & .lb-stat-label::before {
    counter-increment: leaderboard; // scuffed but works
    content: counter(leaderboard)". ";
  }
}

.underbar-container {
  display: -webkit-flex;
  display: flex;
  width: 100%;

  > * {
    margin-top: 15px;
  }

  .button-container {
    > * {
      display: -webkit-flex;
      display: flex;
      width: 50%;
      
      img {
        width: 25px;
      }
    }
  }
  
}

.kurin-palautus-container {
  justify-content: center;
  flex: 1; // mf's browsers don't support flex: content???
  display: -webkit-flex;
  display: flex;
  text-align: center;
  margin-left: 25px;
  min-height: 30px;
}

.kurin-palautus {
  padding: 0 5px;
  background-color: #c00;
  cursor: pointer;
  width: 25%;
  border-radius: 3px;
  transition: 1s background, 1s color;
  display: -webkit-flex;
  display: flex;
  align-items: center;
  justify-content: center; 
  border: $game-background 1px solid;

  &:hover {
    border: $game-background-dark 1px solid;
  }
}


.HAC-container {
  position: relative;
  background: #bbada0;
  padding: 15px 15px;
  font-size: 25px;
  height: 25px;
  line-height: 47px;
  font-weight: bold;
  border-radius: 3px;
  color: white;
  text-align: center;
}
.HAC-container::after{
  content: "HAC";
  position: absolute;
  width: 100%;
  top: 10px;
  left: 0;
  text-transform: uppercase;
  font-size: 13px;
  line-height: 13px;
  text-align: center;
  color: #eee4da;
}
.HAC-status{
  cursor: default;
}

.parin-kulautus {
  text-decoration: none;
  color: #eee;
  font-size: 11px;
  transition: 1s background, 1s color;
}

.disclaimer {
  margin-top: 60px;
  font-size: small;
  text-align: center;
}

.disclaimer p {
  margin-bottom: 20px;
}

.discord {
  margin-top: 40px;
  font-size: small;
  text-align: center;
}

@include keyframes(move-up) {
  0% {
    top: 25px;
    opacity: 1;
  }

  100% {
    top: -50px;
    opacity: 0;
  }
}

.scores-container {
  float: right;
  text-align: right;
  margin-bottom: 20px;
  min-width: 20px;
  max-width: 50%;
}

.score-container, .best-container {
  $height: 25px;

  position: relative;
  background: $game-container-background;
  padding: 15px 20px;
  font-size: $height - 5px;
  height: $height;
  line-height: $height + 22px;
  font-weight: bold;
  border-radius: 3px;
  color: white;
  text-align: center;
  flex: 1; // mf's browsers don't support flex: content???
  min-width: 50px;

  &:after {
    position: absolute;
    width: 100%;
    top: 10px;
    left: 0;
    text-transform: uppercase;
    font-size: 13px;
    line-height: 13px;
    text-align: center;
    color: $tile-color;
  }

  .score-addition {
    position: absolute;
    right: 30px;
    color: red;
    font-size: $height;
    line-height: $height;
    font-weight: bold;
    color: rgba($text-color, .9);
    z-index: 100;
    @include animation(move-up 600ms ease-in);
    @include animation-fill-mode(both);
  }
}

.score-container:after {
  content: "Arvosana";
}

.best-container:after {
  content: "Paras Halla";
}

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

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

strong {
  &.important {
    text-transform: uppercase;
  }
}

hr {
  border: none;
  border-bottom: 1px solid lighten($text-color, 40%);
  margin-top: 20px;
  margin-bottom: 30px;
}

.container {
  width: $field-width;
  margin: 0 auto;
  padding: 40px 0;
}

@include keyframes(fade-in) {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

//kurinpalautus
@include keyframes(fade-in-out) {
  0% {
    opacity: 0; 
  }
      
  50% {
    opacity: 1; 
  }

  100% {
    opacity: 0; 
  } 
}


// Styles for buttons
@mixin button {
  display: inline-block;
  background: darken($game-container-background, 20%);
  border-radius: 3px;
  padding: 0 20px;
  text-decoration: none;
  color: $bright-text-color !important;
  height: 40px;
  line-height: 42px;
  flex: content;
}

// Game field mixin used to render CSS at different width
@mixin game-field {
  .game-container {
    margin-top: $game-container-margin-top;
    position: relative;
    padding: var(--grid-gap);

    cursor: default;
    -webkit-touch-callout: none;
    -ms-touch-callout: none;

    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;

    -ms-touch-action: none;
    touch-action: none;

    background: $game-container-background;
    transition: all 0.25s;
    border-radius: $tile-border-radius * 2;
    width: $field-width;
    height: $field-width;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;

    .game-message {
      display: none;

      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      background: rgba($tile-color, .8);
      z-index: 100;

      text-align: center;

      p {
        line-height: 60px;
        font-weight: bold;
      }

      .tilanne {
        font-size: 60px;
        margin-top: 180px;
        // height: $field-width;
        // line-height: $field-width;
      }

      .kurinpalautukset {
        font-size: 20px;
      }

      .lower {
        display: block;
        margin-top: 59px;
      }

      a {
        @include button;
        margin-left: 9px;
        // margin-top: 59px;

        &.keep-playing-button {
          display: none;
        }
      }

      @include animation(fade-in 800ms ease $transition-speed * 12);
      @include animation-fill-mode(both);

      &.game-won {
        background: rgba($tile-gold-color, .5);
        color: $bright-text-color;

        a.keep-playing-button {
          display: inline-block;
        }
      }

      &.game-won, &.game-over {
        display: block;
      }
    }
  }

  .grid-container {
    position: absolute;
    z-index: 1;
    overflow: hidden;
    display: grid;
    grid-template-rows: repeat(var(--grid-size-max), var(--tile-size));
    grid-template-columns: repeat(var(--grid-size-max), var(--tile-size));
    gap: var(--grid-gap);
    height: calc(100% - calc(var(--grid-gap) * 2));
    width: calc(100% - calc(var(--grid-gap) * 2));
    transition: all 0.25s;
  }

  .grid-row {
    display: grid;
    grid-template-columns: repeat(var(--grid-size), var(--tile-size));
    gap: var(--grid-gap);
    overflow: hidden;

    &:last-child {
      margin-bottom: 0;
    }

    &:after {
      content: "";
      display: block;
      clear: both;
    }
  }

  .grid-cell {
    width: var(--tile-size);
    height: var(--tile-size);
    margin-right: var(--grid-gap);
    transition: all .25s;

    border-radius: var(--tile-border-radius);

    background: rgba($tile-color, .35);

    &:last-child {
      margin-right: 0;
    }
  }

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

  .tile {
    &, .tile-inner {
      width: var(--tile-size);
      height: var(--tile-size);
      line-height: var(--tile-size);
    }

    // Build position classes
    @for $x from 1 through $grid-max-size {
      @for $y from 1 through $grid-max-size {
        &.tile-position-#{$x}-#{$y} {
          --x: #{$x};
          --y: #{$y};
          --xpos: calc( calc(var(--tile-size) + var(--grid-gap)) * calc(var(--x) - 1) );
          --ypos: calc( calc(var(--tile-size) + var(--grid-gap)) * calc(var(--y) - 1) );
          @include transform(translate(var(--xpos), var(--ypos)));
        }
      }
    }
  }
}

$kiillot: (128: (-4px, #a8fa8a), 
          256: (-4px, #FFFB62), 
          512: (-3px, #ffa600), 
          1024: (-1px, #5000ff), 
          2048: (0px, #FF4646), 
          4096: (0px, #FF9B00), 
          8192: (0px, #00FF13), 
          16384: (1px, #FFC600), 
          32768: (2px, #0B00FF));

$i: 2;

@while $i <= 32768 {
  .tile-#{$i} .tile-inner {
    background-image: url('../img/#{$i}.png');
    @if($i >= 128) {
      box-shadow: 0px 0px 15px nth(map.get($kiillot, $i), 1) nth(map.get($kiillot, $i), 2);
    }
  }
  $i: $i * 2;
}

.game-container .kurin-palautus-viesti {
  width: 94%;
  position: absolute;
  top: 25px;

  display: -webkit-flex;
  display: flex;
  justify-content: center;

  z-index: 1000;
  pointer-events: none;

  & img {
    width: 300px;

    @include animation(fade-in-out 4000ms ease-out);
    @include animation-fill-mode(both);
  }
}


// End of game-field mixin
@include game-field;


.tile {
  position: absolute; // Makes transforms relative to the top-left corner

  .tile-inner {
    --img-path: url('../img/tile_unknown.png');
    background-image: var(--img-path);
    border-radius: $tile-border-radius;

    text-align: center;
    font-weight: bold;
    z-index: 10;

    font-size: 55px;

    background-size: cover;
  }

  // Movement transition
  @include transition($transition-speed ease-in-out);
  -webkit-transition-property: -webkit-transform;
  -moz-transition-property: -moz-transform;
  transition-property: transform;

  $base: 2;
  $exponent: 1;
  $limit: 11;

  // Colors for all 11 states, false = no special color
  $special-colors: false false, // 2
                   false false, // 4
                   #f78e48 true, // 8
                   #fc5e2e true, // 16
                   #ff3333 true, // 32
                   #ff0000 true, // 64
                   false true, // 128
                   false true, // 256
                   false true, // 512
                   false true, // 1024
                   false true; // 2048

}

@include keyframes(appear) {
  0% {
    opacity: 0;
    @include transform(scale(0));
  }

  100% {
    opacity: 1;
    @include transform(scale(1));
  }
}


.tile-new .tile-inner {
  @include animation(appear 200ms ease $transition-speed);
  @include animation-fill-mode(backwards);
}

@include keyframes(pop) {
  0% {
    @include transform(scale(0));
  }

  50% {
    @include transform(scale(1.2));
  }

  100% {
    @include transform(scale(1));
  }
}

.tile-merged .tile-inner {
  z-index: 20;
  @include animation(pop 200ms ease $transition-speed);
  @include animation-fill-mode(backwards);
}

.new-above-game{
  display: -webkit-flex;
  display: flex;
  gap: 1em;
}
.above-game-left{
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.above-game-right{
  display: -webkit-flex;
  display: flex;
  flex-direction: row;
  gap: .5em;
  flex: 1;
  flex-wrap: wrap;
  align-content: end;
}

.above-game {
  @include clearfix;
}

.game-intro {
  float: left;
  line-height: 42px;
  margin-bottom: 0;
  font-size: smaller;
}

.restart-button {
  @include button;
  flex: content;
  text-align: center;
  display: flex;
  overflow: hidden;
  padding: 0;
  height: 50px;
  line-height: 52px;
  .uusi-jakso{
    transition: all 0.25s ease;
    transform: translateX(0);
    flex: 1;
    overflow: hidden;
  }
  .size-selector {
    transform: translateX(100%);
    transition: all 0.25s ease;
    flex: 0;
    overflow: hidden;
    padding: 2px;

    display: -webkit-flex;
    display: flex;
    button {
      flex: 1; // mf's browsers don't support flex: content???
      font-size: 1em;
      border: none;
      border-radius: 3px;
      margin: 3px;
      cursor: pointer;
      overflow: hidden;
      background: #ddd;
      color: black;
    }
    button:hover {
      background: #ccc;
    }
    button.restart-4x4::after {
      content: "oletus";
      display: block;
      line-height: 40%;
      font-size: 75%;
      margin-top: -1.5px;
    }
    button.restart-3x3::after {
      content: " ";
      display: block;
      line-height: 40%;
      font-size: 75%;
      margin-top: -1.5px;
    }
  }
}
.restart-button.open {
  .uusi-jakso {
    transform: translateX(-100%);
    flex: 0;
  }
  .size-selector {
    transform: translateX(0);
    flex: 1;
  }
}
.pwa-add-button {
  @include button;
}

.game-explanation {
  margin-top: 50px;
}

@include smaller($mobile-threshold) {
  // Redefine variables for smaller screens
  :root{
    --field-width: 320px;
    --grid-gap: 10px;
    --tile-border-radius: 3px;
  }
  $field-width: 320px !global;
  $grid-spacing: 10px !global;
  $tile-border-radius: 3px !global;
  $game-container-margin-top: 17px !global;

  html, body {
    font-size: 15px;
    padding: 0;
    margin: 0;
    background-image: none !important; 
  }

  h1.title {
    font-size: 38px;
    margin-top: 15px;
    max-width: 50%;
    word-wrap: normal;
  }

  .container {
    width: $field-width;
    margin: 0 auto;
    padding: 20px 0;
  }


  .heading {
    margin-bottom: 10px;
  }

  // Render the game field at the right width
  @include game-field;

  // Rest of the font-size adjustments in the tile class
  .tile .tile-inner {
    font-size: 35px;
  }

  .game-message {
    a {
      padding: 0 10px !important;
    }

    .tilanne {
      font-size: 40px !important;
      height: 30px !important;
      line-height: 30px !important;
      margin-top: 90px !important;
    }

    .kurinpalautukset {
      font-size: 20px !important;
    }

    .lower {
      margin-top: 10px !important;

      .keep-playing-button {
        margin-bottom: 10px !important;
      }
    }
  }

  .kurin-palautus {
    width: 40% !important;
  }
  
  .game-container .kurin-palautus-viesti {
    top: 20px;
  
    & img {
      width: 170px;
    }
  }
  
}

$colors: (
  '0-text-color': #eee,
  '0-game-background': #161817,
  '0-game-background-inverted': #E9E7E8, //käytetään kurinpalautusnapin hoverausefektille
  '0-game-container-background': #3e3933,
  '0-title-color': #e6d2bf,
  '0-button-color': #365ca6,
  '0-break-button-background-false': #a63636, //kurinpalautus!
  '0-break-button-color-false': #ddd,
  '0-break-button-background-true': #49a636,
  '0-break-button-color-true': #dfdfdf,

  '2-text-color': #eee,
  '2-game-background': #161817,
  '2-game-background-inverted': #E9E7E8, //käytetään kurinpalautusnapin hoverausefektille
  '2-game-container-background': #3e3933,
  '2-title-color': #e6d2bf,
  '2-button-color': #974F23,

  '3-text-color': #dfdfdf,
  '3-cell-color': rgba(204, 63, 63, 0.35),
  '3-game-background': #460811,
  '3-game-background-inverted': #b9f7ee, //käytetään kurinpalautusnapin hoverausefektille
  '3-game-container-background': #8B0F17,
  '3-title-color': #F4AB1D,
  '3-button-color': #146B3A,
  '3-break-button-background-false': #8B0F17, //kurinpalautus!
  '3-break-button-color-false': #ddd,
  '3-break-button-background-true': #146B3A,
  '3-break-button-color-true': #dfdfdf,
);

@mixin setThemeColors($color-number) {
  html.theme-#{$t} {
    background: map-get($colors, '#{$color-number}-game-background');
    @if map.has-key($colors, '#{$color-number}-break-button-background-false') { 
      .parin-kulautus, .kurin-palautus {
        background: map-get($colors, '#{$color-number}-break-button-background-false');
        color: map-get($colors, '#{$color-number}-break-button-color-false');
        &.allowed{
          background: map-get($colors, '#{$color-number}-break-button-background-true');
          color: map-get($colors, '#{$color-number}-break-button-color-true');
        }
      }
    }
    @else {
      .parin-kulautus, .kurin-palautus {
        background: var(--break-button-background-false);
        color: var(--break-button-color-false);
        &.allowed{
          background: var(--break-button-background-true);
          color: var(--break-button-color-true);
        }
      }
    }
    & body {
      background-image: url('../img/theme-#{$color-number}/OispaHallaTausta.webp');
      @if map.has-key($colors, '#{$color-number}-game-background') { 
        // skips the definitions if the game background doesn't exist
        color: map-get($colors, '#{$color-number}-text-color');
        background-color: map-get($colors, '#{$color-number}-game-background');

        a {
          color: map-get($colors, '#{$color-number}-title-color');
        }

        .grid-cell {
          background-color: map-get($colors, '#{$color-number}-cell-color');
        }

        .kurin-palautus {
          border: 1px map-get($colors, '#{$color-number}-game-background') solid;

          &:hover {
            border: 1px map-get($colors, '#{$color-number}-game-background-inverted') solid;
          }
        }

        .game-container, .score-container, .best-container, .HAC-container {
          background: map-get($colors, '#{$color-number}-game-container-background');
        }

        .game-message.game-over {
          background: rgba(map-get($colors, '#{$color-number}-game-background'), 0.8);
        }

        .restart-button, .lower > * {
          background: map-get($colors, '#{$color-number}-button-color');
        }
      }
    }
  }
}

// Themes
$t: 0;
@while $t <= 20 {
  $i: 2;
  @while $i <= 32768 {
    html.theme-#{$t} .tile-#{$i} .tile-inner {
      background-image: url('../img/theme-#{$t}/#{$i}.png');
      @if($i >= 128) {
        box-shadow: 0px 0px 15px nth(map.get($kiillot, $i), 1) nth(map.get($kiillot, $i), 2);
      }
    }
    $i: $i * 2;
  }
  @include setThemeColors('#{$t}');
  $t: $t + 1;
}