/* GENERAL */

*,
*::before,
*::after {
  font-size: inherit;
  font-family: inherit;
  box-sizing: inherit;
  margin: 0;
  padding: 0;
  user-select: none;
  box-sizing: border-box;
}

body {
  font-family: 'Roboto', sans-serif;
}

:root {
  --color: #d8c21e;
  --disabled: #8f853d;
  --colorSecondary: #a80f5e;
  --background: #111111;
  --backgroundSecondary: #282828;
  --borderRadius: 10px;
  --animation: 0.3s eas e;
  --cellSize: 100px;
  --markSize: calc(var(--cellSize) * .9);
}

/* LAYOUT */

.container {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background: var(--backgroundSecondary);
}

.hide {
  display: none;
}

/* FORM */

.wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.title {
  display: flex;
  justify-content: center;
  color: var(--color);
  margin-top: 20px;
  font-size: 64px;
  text-transform: uppercase;
}

.action-wrapper  {
  flex: 0 0 100px;
}

.action-button {
  padding: 20px 40px;
  margin: 0 10px 10px 10px;
  min-width: 175px;
  border-radius: var(--borderRadius);
  border: 3px solid transparent;
  background: var(--color);
  color: var(--background);
  cursor: pointer;
  text-transform: uppercase;
  font-weight: 700;
  transition: all 0.25s ease;
}

.action-button:hover {
  background: var(--background);
  color: var(--color);
  border: 3px solid var(--color);
}

.action-button.secondary {
  border-radius: var(--borderRadius);
  border: 3px solid var(--colorSecondary);
  background: var(--background);
  color: var(--color);
  cursor: pointer;
  text-transform: uppercase;
  font-weight: 700;
}

.action-button.secondary:hover {
  background: var(--colorSecondary);
  color: var(--color);
  border: 3px solid var(--color);
}

.action-button[disabled] {
  background: var(--disabled);
  cursor: not-allowed;
}

.action-button[disabled]:hover {
  background: var(--disabled);
  cursor: not-allowed;
  color: var(--background);
  border: 3px solid transparent;
}

/* GAMEBOARD */

.gameboard {
  display: grid;
  justify-content: center;
  align-content: center;
  align-items: center;
  grid-template-columns: repeat(3, auto);
  margin: 50px 0;
}

.gameboard.presentation > .cell {
  cursor: inherit;
}

.cell {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: var(--cellSize);
  height: var(--cellSize);
  border: 2px solid var(--color);
  cursor: pointer;
}

.cell.x, .cell.o {
  cursor: not-allowed;
}

.cell.x::before,
.cell.x::after,
.cell.o::before,
.cell.o::after {
  background-color: var(--color);
}

.gameboard.x .cell:not(.x):not(.o):hover::before,
.gameboard.x .cell:not(.x):not(.o):hover::after,
.gameboard.o .cell:not(.x):not(.o):hover::before,
.gameboard.o .cell:not(.x):not(.o):hover::after  {
  background-color: var(--disabled);
}

.cell.x::before,
.cell.x::after,
.gameboard.x .cell:not(.x):not(.o):hover::before,
.gameboard.x .cell:not(.x):not(.o):hover::after {
  position: absolute;
  content: '';
  width: calc(var(--markSize) * .15);
  height: var(--markSize);
}

.cell.x::before,
.gameboard.x .cell:not(.x):not(.o):hover::before {
  transform: rotate(45deg);
}

.cell.x::after,
.gameboard.x .cell:not(.x):not(.o):hover::after {
  transform: rotate(-45deg);
}

.cell.o::before,
.cell.o::after,
.gameboard.o .cell:not(.x):not(.o):hover::before,
.gameboard.o .cell:not(.x):not(.o):hover::after {
  position: absolute;
  content: '';
  border-radius: 100%;
}

.cell.o::after,
.gameboard.o .cell:not(.x):not(.o):hover::after {
  width: calc(var(--markSize) * .7);
  height: calc(var(--markSize) * .7);
  background-color: var(--backgroundSecondary);
  z-index: 2;
}

.cell.o::before,
.gameboard.o .cell:not(.x):not(.o):hover::before {
  width: var(--markSize);
  height: var(--markSize);
}