:root {
  --background-color: #252525;
  --text-color: #d4d4d4;
  --accent-color: hsl(24, 55%, 43%);
}

body {
  color: var(--text-color);
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--background-color);
  overflow-x: hidden;
}

span {
  color: var(--accent-color);
}

#errors {
  color: var(--accent-color);
}

main {
  min-width: 100vw;
  min-height: fit-content;
  display: flex;
  align-items: center;
  justify-content: center;
}

#board {
  width: 450px;
  height: 450px;
  display: flex;
  flex-wrap: wrap;
  scale: 0.9;
}

.tile {
  width: 48px;
  height: 48px;
  color: var(--accent-color);
  border: 1px solid #000;
  font-size: 20px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
}

#digits {
  width: 50px;
  height: 450px;
  display: flex;
  justify-self: flex-end;
  flex-direction: row;
  flex-wrap: wrap;
  scale: 0.9;
}

.number {
  width: 44px;
  height: 44px;
  border: 1px solid black;
  margin: 2px;
  font-size: 20px;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-color);
  background-color: hsl(24, 55%, 35%);
}

.number:hover {
  background-color: hsl(24, 55%, 45%);
}

.selected {
  color: var(--text-color);
  background-color: hsl(24, 55%, 53%);
}

.tile-start {
  color: var(--text-color);
  background-color: var(--accent-color);
}

.horizontal-line {
  border-bottom: 1px solid hsl(24, 55%, 53%);
}

.vertical-line {
  border-right: 1px solid hsl(24, 55%, 53%);
}

@media screen and (max-width: 700px) {
    body{
        width: 100vw;
    }
    main{
        width: 65%;
        min-height: 70vh;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        box-sizing: border-box;
    }
    #board{
        scale: .8;
        margin: 0;
    }

    #digits{
        scale: .8;
        width: 450px;
        height: 50px;
        flex-direction: column;
    }
}