/* ==========================================================================
   HKEMS-STMO · Games (2048, whack-a-mole)
   ========================================================================== */

.game-shell {
  max-width: 620px;
  margin-inline: auto;
  padding-block: clamp(16px, 3vw, 32px) clamp(32px, 6vw, 64px);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.game-hud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.score-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 88px;
  padding: 8px 18px;
  border-radius: var(--shape-md);
  background: color-mix(in srgb, var(--md-surface-container-lowest) 62%, transparent);
  border: 1px solid var(--glass-border-soft);
}

.score-pill span {
  font: var(--font-label-sm);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--md-on-surface-variant);
}

.score-pill strong {
  font: var(--font-headline-sm);
  font-variant-numeric: tabular-nums;
  color: var(--md-on-surface);
}

.score-pill--accent strong {
  color: var(--md-primary);
}

.game-hud__spacer {
  flex: 1;
}

/* --------------------------------------------------------------------------
   2048
   -------------------------------------------------------------------------- */
.board {
  --gap: 12px;
  --pad: 12px;
  position: relative;
  aspect-ratio: 1 / 1;
  padding: var(--pad);
  border-radius: var(--shape-2xl);
  background: color-mix(in srgb, var(--md-surface-container-high) 72%, transparent);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--elev-3);
  touch-action: none;
  user-select: none;
}

@media (max-width: 520px) {
  .board {
    --gap: 8px;
    --pad: 8px;
  }
}

.board__grid {
  position: absolute;
  inset: var(--pad);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-template-rows: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}

.board__cell {
  border-radius: var(--shape-md);
  background: color-mix(in srgb, var(--md-surface) 45%, transparent);
}

.board__tiles {
  position: absolute;
  inset: var(--pad);
  pointer-events: none;
}

.tile {
  position: absolute;
  width: calc((100% - 3 * var(--gap)) / 4);
  height: calc((100% - 3 * var(--gap)) / 4);
  left: calc(var(--col) * ((100% - 3 * var(--gap)) / 4 + var(--gap)));
  top: calc(var(--row) * ((100% - 3 * var(--gap)) / 4 + var(--gap)));
  display: grid;
  place-items: center;
  border-radius: var(--shape-md);
  background: var(--tile-bg, var(--md-surface-container-lowest));
  color: var(--tile-fg, var(--md-on-surface));
  font-family: var(--font-sans);
  font-size: clamp(1.05rem, 5vw, 1.9rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  box-shadow: var(--elev-1);
  transition:
    left var(--dur-short3) var(--ease-standard),
    top var(--dur-short3) var(--ease-standard),
    background-color var(--dur-short3) var(--ease-standard),
    color var(--dur-short3) var(--ease-standard);
}

.tile--new {
  animation: tile-pop var(--dur-medium1) var(--ease-spring);
}

.tile--merged {
  animation: tile-merge var(--dur-medium1) var(--ease-spring);
}

@keyframes tile-pop {
  from {
    opacity: 0;
    scale: 0.5;
  }
}

@keyframes tile-merge {
  0% {
    scale: 1;
  }
  50% {
    scale: 1.14;
  }
  100% {
    scale: 1;
  }
}

/* value ramp — tinted with the palette instead of the classic orange ramp */
.tile[data-value="2"] {
  --tile-bg: color-mix(in srgb, var(--md-surface-container-lowest) 92%, var(--md-primary));
}
.tile[data-value="4"] {
  --tile-bg: color-mix(in srgb, var(--md-primary-container) 62%, var(--md-surface-container-lowest));
  --tile-fg: var(--md-on-primary-container);
}
.tile[data-value="8"] {
  --tile-bg: color-mix(in srgb, var(--md-primary) 34%, var(--md-surface-container-lowest));
  --tile-fg: var(--md-on-primary-container);
}
.tile[data-value="16"] {
  --tile-bg: color-mix(in srgb, var(--md-primary) 56%, var(--md-surface-container-lowest));
  --tile-fg: var(--md-on-primary);
}
.tile[data-value="32"] {
  --tile-bg: color-mix(in srgb, var(--md-primary) 74%, var(--md-on-primary-container));
  --tile-fg: var(--md-on-primary);
}
.tile[data-value="64"] {
  --tile-bg: var(--md-primary);
  --tile-fg: var(--md-on-primary);
}
.tile[data-value="128"] {
  --tile-bg: color-mix(in srgb, var(--md-tertiary) 58%, var(--md-surface-container-lowest));
  --tile-fg: var(--md-on-tertiary);
  font-size: clamp(0.95rem, 4.4vw, 1.7rem);
}
.tile[data-value="256"] {
  --tile-bg: var(--md-tertiary);
  --tile-fg: var(--md-on-tertiary);
  font-size: clamp(0.95rem, 4.4vw, 1.7rem);
}
.tile[data-value="512"],
.tile[data-value="1024"],
.tile[data-value="2048"] {
  --tile-bg: var(--md-tertiary);
  --tile-fg: var(--md-on-tertiary);
  font-size: clamp(0.85rem, 4vw, 1.55rem);
}

.board__overlay {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 24px;
  text-align: center;
  border-radius: inherit;
  background: color-mix(in srgb, var(--md-surface-container-high) 82%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--dur-medium1) var(--ease-standard),
    visibility var(--dur-medium1);
}

.board__overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.board__overlay h3 {
  font: var(--font-headline-sm);
}

.board__overlay p {
  font: var(--font-body-sm);
  color: var(--md-on-surface-variant);
}

.game-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  font: var(--font-body-sm);
  color: var(--md-on-surface-variant);
}

.kbd-row {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   Whack-a-mole
   -------------------------------------------------------------------------- */
.mole-wrap {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mole-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 18px);
  padding: clamp(16px, 3vw, 28px);
  border-radius: var(--shape-2xl);
  background: color-mix(in srgb, var(--md-surface-container-high) 70%, transparent);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--elev-3);
  overflow: hidden;
  touch-action: manipulation;
}

.hole {
  position: relative;
  aspect-ratio: 1 / 0.86;
  border-radius: 50% 50% 42% 42% / 46% 46% 54% 54%;
  background: color-mix(in srgb, var(--md-surface) 45%, var(--md-surface-container-highest));
  box-shadow:
    inset 0 10px 18px rgb(0 0 0 / 0.3),
    inset 0 -4px 10px rgb(255 255 255 / 0.06);
  overflow: hidden;
  isolation: isolate;
}

.hole__mole {
  position: absolute;
  inset: auto 4% -6% 4%;
  translate: 0 96%;
  transition: translate 180ms var(--ease-emphasized-decel);
  cursor: pointer;
  display: grid;
  place-items: center;
  -webkit-tap-highlight-color: transparent;
}

.hole.is-up .hole__mole {
  translate: 0 6%;
}

.hole__mole svg {
  width: 92%;
  height: auto;
  filter: drop-shadow(0 6px 10px rgb(0 0 0 / 0.35));
}

.hole.is-hit .hole__mole {
  animation: mole-hit 240ms var(--ease-standard);
}

@keyframes mole-hit {
  50% {
    scale: 0.86;
    rotate: -6deg;
  }
}

.hole__score {
  position: absolute;
  top: 8px;
  left: 50%;
  translate: -50% 0;
  z-index: 3;
  font: var(--font-label-lg);
  color: var(--md-tertiary);
  opacity: 0;
  pointer-events: none;
}

.hole.is-hit .hole__score {
  animation: score-up 700ms var(--ease-emphasized-decel);
}

@keyframes score-up {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-26px);
  }
}

.mole-overlay {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 24px;
  text-align: center;
  border-radius: var(--shape-2xl);
  background: color-mix(in srgb, var(--md-surface-container-high) 97%, transparent);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  transition: opacity var(--dur-medium1) var(--ease-standard);
}

.mole-overlay[hidden] {
  display: flex;
  opacity: 0;
  pointer-events: none;
}

.mole-overlay__title {
  font: var(--font-headline-sm);
}

.mole-overlay__text {
  font: var(--font-body-sm);
  color: var(--md-on-surface-variant);
  max-width: 34ch;
}

.combo-flash {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 7;
  padding: 4px 10px;
  border-radius: var(--shape-full);
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
  font: var(--font-label-lg);
  opacity: 0;
  transition: opacity var(--dur-short2) var(--ease-standard);
}

.combo-flash.is-visible {
  opacity: 1;
}

@media (max-width: 520px) {
  .score-pill {
    min-width: 72px;
    padding: 6px 12px;
  }
  .score-pill strong {
    font-size: 1.1rem;
  }
}