:root {
  --primary-color: #1b4965; /*  var(--primary-color)        */
  --secondary-color: #cae9ff; /*  var(--secondary-color)      */
}

* {
  margin: 0px;
  padding: 0px;
  font-size: 18px;
}

html {
  box-sizing: border-box;
}

body {
  background-color: var(--primary-color);
  color: var(--secondary-color);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mainContainer {
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
  font-size: 2.67em;
  padding: 10px 0 10px 0;
}

h2 {
  font-size: 1.4em;
  padding: 10px 0 10px 0;
}

.scoreContainer {
  display: flex;
  width: 100%;
  padding: 10px 0;
}
.scoreboard {
  display: flex;
  width: 100%;
  justify-content: center;
  align-items: center;
  padding: 10px 0;
  text-align: center;
}

.boardContainer {
  display: grid;
  grid-template-columns: repeat(3, 175px);
  grid-template-rows: repeat(3, 175px);
}

.boardCell {
  border: 1px black solid;
  font-size: 48px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.buttons {
  display: flex;
  width: 100%;
  height: 30px;
  justify-content: space-around;
  align-items: center;
  padding: 5px 0;
}