.sudoku-component {
  background: #ffe3a5;
  color: #3f3e40;
  padding: 10px;
  overflow: auto;
  display: flex;
  flex-wrap: wrap;
  box-shadow: 5px 5px 2px rgba(38, 38, 38, .5);
  position: relative;
}

.sudoku-info {
  flex: 1 1 0;
  padding: 0 10px 20px 0;
  text-align: center;
}

.sudoku-squares {
  flex: auto;
  text-align: center;
}

.sudoku-squares-table {
  display: inline-block;
  border-spacing: 0px;
  border-collapse: collapse;
}

.sudoku-square-row,
.sudoku-modal-square-row {
  display: table-row;
}

.sudoku-square-wrapper,
.sudoku-modal-square-wrapper {
  display: table-cell;
  vertical-align: top;
  position: relative;
  border: 0px;
  background-color: #ffffff;
  padding: 1px;
  background-clip: padding-box;
}

.sudoku-square,
.sudoku-modal-square {
  overflow: hidden;
  width: 34px;
  height: 34px;
  min-width: 34px;
  line-height: 34px;
  position: relative;
  border: 1px solid #888;
  background-color: #ffffff;
  margin: 1px;
  text-align: center;
  -webkit-border-radius: 5px;
     -moz-border-radius: 5px;
          border-radius: 5px;
  cursor: pointer;
}

.sudoku-modal {
  display: block;
  position: absolute;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.4);
  text-align: center;
}

.sudoku-modal-content {
  background: #ffe3a5;
  color: #3f3e40;
  margin: 20px 0px 10px 0px;
  padding: 0px 20px 20px 20px;
  border: 1px solid #888;
  display: inline-block;
}

.sudoku-modal-square:hover {
  background-color: rgba(249, 157, 29, 0.4);
}

.sudoku-modal-square-wrapper {
  background: #ffe3a5;
}

.sudoku-modal-header {
	text-align: right;
  font-family: 'amaticbold', Tahoma, Arial, sans-serif;
  font-size: 50px;
  line-height: 35px;
  color: #f99d1d;
  cursor: pointer;
}

.sudoku-modal-header:hover {
  color: rgba(249, 157, 29, 0.4);
}

.sudoku-square-border-top {
  border-top: 2px solid black;
}

.sudoku-square-border-bottom {
  border-bottom: 2px solid black;
}

.sudoku-square-border-left {
  border-left: 2px solid black;
}

.sudoku-square-border-right {
  border-right: 2px solid black;
}

.sudoku-square-diagonal-left {
  background: linear-gradient(to bottom left,
    rgba(0,0,0,0) calc(50% - 0.8px),
    rgba(0,0,0,1) 50%,
    rgba(0,0,0,0) calc(50% + 0.8px)
  );
}

.sudoku-square-diagonal-right {
	background: linear-gradient(to bottom right,
      rgba(0,0,0,0) calc(50% - 0.8px),
      rgba(0,0,0,1) 50%,
      rgba(0,0,0,0) calc(50% + 0.8px)
  );
}

.sudoku-square-diagonal-both {
  background: linear-gradient(to bottom left,
    rgba(0,0,0,0) calc(50% - 0.8px),
    rgba(0,0,0,1) 50%,
    rgba(0,0,0,0) calc(50% + 0.8px)
  ), linear-gradient(to bottom right,
      rgba(0,0,0,0) calc(50% - 0.8px),
      rgba(0,0,0,1) 50%,
      rgba(0,0,0,0) calc(50% + 0.8px)
  );
}

.sudoku-square-colored,
.sudoku-square-essential.sudoku-square-colored {
  background: #8df;
}

.sudoku-square-highlight {
  border: 1px solid #f99d1d;	
}

.sudoku-square-essential {
  background: #ddd;
  cursor: default;
}

.sudoku-square-essential.sudoku-square-diagonal-left {
  background: linear-gradient(to bottom left,
    rgba(0,0,0,0) calc(50% - 0.8px),
    rgba(0,0,0,1) 50%,
    rgba(0,0,0,0) calc(50% + 0.8px)
  ), #ddd;
}

.sudoku-square-essential.sudoku-square-diagonal-right {
  background: linear-gradient(to bottom right,
      rgba(0,0,0,0) calc(50% - 0.8px),
      rgba(0,0,0,1) 50%,
      rgba(0,0,0,0) calc(50% + 0.8px)
  ), #ddd;
}

.sudoku-square-essential.sudoku-square-diagonal-both {
  background: linear-gradient(to bottom left,
    rgba(0,0,0,0) calc(50% - 0.8px),
    rgba(0,0,0,1) 50%,
    rgba(0,0,0,0) calc(50% + 0.8px)
  ), linear-gradient(to bottom right,
      rgba(0,0,0,0) calc(50% - 0.8px),
      rgba(0,0,0,1) 50%,
      rgba(0,0,0,0) calc(50% + 0.8px)
  ), #ddd;
}

.sudoku-headline1 h1 {
  font-family: 'amaticbold', Tahoma, Arial, sans-serif;
  font-size: 50px;
  line-height: 50px;
  min-width: 235px;
  color: #f99d1d;
  padding: 0;
  margin: 0;
}

.sudoku-headline2 h2 {
  font-family: 'amaticbold', Tahoma, Arial, sans-serif;
  font-size: 35px;
  line-height: 35px;
  color: #fbaf4a;
  padding: 0;
  margin: 0;
  white-space: nowrap;
}

.sudoku-headline1,
.sudoku-headline2,
.sudoku-button {
  margin: 0 0 10px 0; 
}

.sudoku-button button {
  font-family: 'amaticbold', Tahoma, Arial, sans-serif;
  font-size: 28px;
  line-height: 28px;
  cursor: pointer;
  color: #ffffff;
  background: #818284;
  border: 0;
  padding: 10px;
  margin: 0;
  -webkit-border-radius: 5px;
     -moz-border-radius: 5px;
          border-radius: 5px;
}

.sudoku-button button.je-prihlaseny {
  background: #f15965;
}