:root {
  --page-gap: clamp(4px, 1vmin, 12px);
  --side-ad-width: clamp(36px, 12vw, 160px);
  --horizontal-ad-height: clamp(44px, 10vh, 90px);
  --stats-height: clamp(18px, 3vmin, 24px);
  --board-size: min(
    100%,
    calc(
      100dvh - var(--horizontal-ad-height) - var(--horizontal-ad-height) -
        var(--page-gap) - var(--page-gap) - var(--page-gap) - var(--page-gap) -
        var(--page-gap) - var(--stats-height)
    )
  );
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

body {
  background: #d3d3d3;
  color: #111;
  font-family: Arial, Helvetica, sans-serif;
  overscroll-behavior: none;
  touch-action: none;
}

.page-layout {
  display: grid;
  grid-template-columns:
    var(--side-ad-width) minmax(0, 1fr)
    var(--side-ad-width);
  grid-template-rows:
    var(--horizontal-ad-height) minmax(0, 1fr)
    var(--horizontal-ad-height);
  gap: var(--page-gap);
  width: 100vw;
  height: 100dvh;
  padding: var(--page-gap);
}

.ad-slot {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.ad-slot--top {
  grid-column: 2;
  grid-row: 1;
}

.ad-slot--left {
  grid-column: 1;
  grid-row: 2;
}

.ad-slot--right {
  grid-column: 3;
  grid-row: 2;
}

.ad-slot--bottom {
  grid-column: 2;
  grid-row: 3;
}

.game-panel {
  display: flex;
  grid-column: 2;
  grid-row: 2;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--page-gap);
  min-width: 0;
  min-height: 0;
}

.stats {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1vw, 14px);
  width: var(--board-size);
  max-width: 640px;
  height: var(--stats-height);
  overflow: hidden;
  font-size: clamp(8px, 1.8vmin, 14px);
  line-height: 1;
  white-space: nowrap;
}

.board-container {
  position: relative;
  width: var(--board-size);
  max-width: 640px;
  aspect-ratio: 1;
}

#game-board {
  display: block;
  width: 100%;
  height: 100%;
  background: #b9b9b9;
  outline: 1px solid #000;
  outline-offset: -1px;
  image-rendering: pixelated;
}

.overlay {
  position: absolute;
  inset: 1px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgb(211 211 211 / 88%);
  text-align: center;
}

.overlay[hidden],
.overlay p[hidden] {
  display: none;
}

.overlay p {
  margin: 0;
}

#overlay-message {
  font-size: clamp(16px, 3vmin, 24px);
}

#overlay-details {
  margin-top: 8px;
  font-size: clamp(13px, 2.2vmin, 18px);
  line-height: 1.4;
  white-space: pre-line;
}

@media (max-width: 360px) {
  .stats {
    gap: 2px;
    font-size: 7px;
  }
}