.game-root { min-height: 28rem; }

.tower-num {
  display: inline-block;
  min-width: 3ch;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.tower-status.lose { color: var(--danger); }

.tower-pause { min-width: 6.75rem; }

.tower-stage {
  width: min(100%, 24rem, max(15rem, calc((100dvh - 18.5rem) * 0.75)));
  margin-inline: auto;
}

.tower-board {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 12px;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 28%),
    #163028;
  border: 1px solid rgba(232, 217, 168, 0.35);
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.35),
    inset 0 14px 28px rgba(0, 0, 0, 0.28);
  touch-action: none;
  user-select: none;
  outline: none;
  cursor: pointer;
}

.tower-board:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.tower-world {
  position: absolute;
  inset: 0;
}

.tower-board.is-set .tower-world {
  transition: transform 0.32s ease;
}

.tower-floor {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--ground, 9%);
  background:
    linear-gradient(180deg, rgba(243, 230, 196, 0.28), transparent 22%),
    linear-gradient(180deg, #6a5438, #3a2c1c 42%, #2a2016);
  box-shadow: inset 0 1px 0 rgba(243, 230, 196, 0.35);
}

.tower-block {
  position: absolute;
  height: var(--block-h, 10%);
  box-sizing: border-box;
  border-radius: 2px;
  border: 1px solid #7d5c30;
  background: linear-gradient(180deg, #fff8e8 0%, #f0ddb0 55%, #d9c08a 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    inset 0 -3px 0 rgba(90, 62, 24, 0.16),
    0 2px 0 rgba(0, 0, 0, 0.16);
}

.tower-block.alt {
  background: linear-gradient(180deg, #f8e7be 0%, #e4c56e 58%, #c9a24a 100%);
}

.tower-block.live {
  z-index: 3;
  border-color: #e0b948;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 0 0 1px rgba(224, 185, 72, 0.9),
    0 3px 0 rgba(0, 0, 0, 0.22);
}

.tower-block.is-level {
  border-color: #e0b948;
}

.tower-scrap {
  position: absolute;
  z-index: 4;
  height: var(--block-h, 10%);
  box-sizing: border-box;
  border-radius: 2px;
  border: 1px solid #7d5c30;
  pointer-events: none;
  background: linear-gradient(180deg, #fff8e8 0%, #f0ddb0 55%, #d9c08a 100%);
}

.tower-scrap.alt {
  background: linear-gradient(180deg, #f8e7be 0%, #e4c56e 58%, #c9a24a 100%);
}

.tower-scrap.is-left { animation: tower-scrap-left 0.42s ease-in forwards; }
.tower-scrap.is-right { animation: tower-scrap-right 0.42s ease-in forwards; }

@keyframes tower-scrap-left {
  to { transform: translate(-1.1rem, 2.4rem) rotate(-7deg); opacity: 0; }
}

@keyframes tower-scrap-right {
  to { transform: translate(1.1rem, 2.4rem) rotate(7deg); opacity: 0; }
}

.tower-block.live.is-miss {
  animation: tower-miss 0.4s ease-in forwards;
}

@keyframes tower-miss {
  to { transform: translateY(7rem); opacity: 0.15; }
}

.tower-drop {
  width: 100%;
  margin-top: 0.85rem;
  min-height: 3.1rem;
  background: linear-gradient(180deg, #fffdf7, #f3e6c4);
  border-color: #b8923a;
  color: #1d2433;
  font-weight: 600;
}

.tower-drop:hover:not(:disabled) {
  border-color: #8a6a28;
  background: linear-gradient(180deg, #fffdf8, #efe0b4);
}

@media (max-width: 640px) {
  .tower-drop { min-height: 3.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  .tower-board.is-set .tower-world,
  .tower-scrap,
  .tower-block.live.is-miss {
    transition: none;
    animation: none;
  }
}