@font-face {
  font-family: "Digital";
  src: url("../fonts/digital.ttf");
}

.main-box {
  --field-bg: rgb(204, 204, 204);
  --border-dark: rgb(215, 215, 215);
  --border-outset: white var(--border-dark) var(--border-dark) white;
  --col-border: 0.05em solid rgb(83, 83, 83);
  --border-inset: var(--border-dark) white white var(--border-dark);

  --col-1: blue;
  --col-2: green;
  --col-3: red;
  --col-4: darkblue;
  --col-5: darkred;
  --col-6: cyan;
  --col-7: black;
  --col-8: rgb(101, 101, 101);

  display: grid;
  grid-template-columns: 1fr;
  width: fit-content;
  margin: 0 auto;
  margin-top: 2em;
  background-color: var(--field-bg);
  border: 0.4em outset rgb(255, 255, 255);
  border-color: var(--border-outset);
  padding: 1em;
}
.settings {
  border: 0.3em inset;
  border-color: var(--border-inset);
  margin-bottom: 0.5em;
  padding: 0.5em 0;
  display: flex;
  justify-content: center;
  gap: 1em;
}

.settings > input {
  padding: 0.4em;
}

.info-box {
  display: flex;
  justify-content: space-between;
  border: 0.3em inset;
  border-color: var(--border-inset);
  align-items: stretch;
  padding: 0.7em 1em;
  font-size: 1.2rem;
}

.mines,
.time-counter {
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3rem;
  font-weight: 900;
  text-shadow: 0.1em 0.1em 0.1em rgba(255, 0, 0, 0.426);
  color: red;
  font-family: "Digital", Arial;
  background-color: black;
  padding: 0.3em 0.2em;
  border: 0.15em inset;
  border-color: var(--border-inset);
}

.mines {
}

.restart-btn {
  overflow: hidden;
  width: 7em;
  min-height: 6.5em;
  background-color: gray;
  border: none;
  padding: 0.2em;
}

.restart-btn:active > .img-box {
  border: none;
}

.restart-btn .img-box {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0.5em;
  border: 0.7em outset;
  border-color: var(--border-outset);
  background-color: var(--field-bg);
  background-origin: content-box;
  background-image: url("../col-icons/smiley.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.win-btn .img-box {
  background-image: url("../col-icons/win-smile.png");
}

.lose-btn .img-box {
  background-image: url("../col-icons/dead-smiley.png");
}

.time-counter {
}

.field-grid {
  position: relative;
  margin-top: 1em;
  border: 0.4em inset;
  border-color: var(--border-inset);
  display: grid;
  grid-template-columns: repeat(9, minmax(0.5em, 4em));
}

.game-over {
}

.game-over::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
  background-color: black;
  opacity: 0.5;
}

.game-over::after {
  content: "You " attr(winText) "!";
  position: absolute;
  color: white;
  justify-content: center;
  align-items: center;
  font-size: 4rem;
  text-align: center;
  top: calc(50% - 1em);
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 3;
}

.field-grid > * {
  position: relative;
  font-size: 2.3rem;
  padding: calc(50% - 1em / 2) 0;
  text-align: center;
  font-weight: 900;
  border-top: var(--col-border);
  border-left: var(--col-border);
  cursor: pointer;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.field-grid > *::before {
  content: "";
  position: absolute;
  display: block;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  border: 0.25em outset;
  border-color: var(--border-outset);
  background-color: var(--field-bg);
  background-origin: content-box;
  padding: 0.1em;
  padding-top: 0.05em;
}

.field-grid > *:not(.marked):active:hover::before,
.activated:not(.marked)::before {
  border: none;
}

.opened::before {
  content: none;
}

.mine {
  display: flex;
  justify-content: center;
}

.mine img {
  display: block;
  height: 1em;
}

.marked::before {
  background-image: url("../col-icons/marked.png");
  background-repeat: no-repeat;
  background-size: cover;
}

.col-1 {
  color: var(--col-1);
}
.col-2 {
  color: var(--col-2);
}
.col-3 {
  color: var(--col-3);
}
.col-4 {
  color: var(--col-4);
}
.col-5 {
  color: var(--col-5);
}
.col-6 {
  color: var(--col-6);
}
.col-7 {
  color: var(--col-7);
}
.col-8 {
  color: var(--col-8);
}

@media screen and (max-width: 512px) {
  .mines,
  .time-counter {
    font-size: 2rem;
  }
}