/* ============================================================
   board.css - 棋盘区域样式
   ============================================================ */

.board-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  min-height: 400px;
  padding: 8px;
}

#boardCanvas {
  width: 100%;
  max-width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  box-shadow: var(--shadow-md), inset 0 1px 0 rgba(255, 255, 255, 0.03);
  transition: box-shadow var(--transition-normal);
}

#boardCanvas:hover {
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

/* --- 骰子显示 --- */
.dice-display {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 52px;
  font-weight: 800;
  color: var(--gold-start);
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 1;
  text-shadow: 0 2px 12px rgba(255, 215, 0, 0.4);
  user-select: none;
}

.dice-display.rolling {
  animation: diceShake 0.6s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

.dice-display.hidden {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.5);
}

/* --- 骰子数字容器 --- */
.dice-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #1a1a3d, #2a2a5a);
  border: 2px solid var(--gold-start);
  border-radius: 14px;
  box-shadow:
    0 0 20px rgba(255, 215, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

@keyframes diceShake {
  0%   { transform: translate(-50%, -50%) rotate(0deg) scale(1); }
  10%  { transform: translate(-50%, -50%) rotate(-25deg) scale(1.15); }
  20%  { transform: translate(-50%, -50%) rotate(25deg) scale(1.2); }
  30%  { transform: translate(-50%, -50%) rotate(-20deg) scale(1.15); }
  40%  { transform: translate(-50%, -50%) rotate(20deg) scale(1.1); }
  50%  { transform: translate(-50%, -50%) rotate(-15deg) scale(1.08); }
  60%  { transform: translate(-50%, -50%) rotate(15deg) scale(1.05); }
  70%  { transform: translate(-50%, -50%) rotate(-8deg) scale(1.03); }
  80%  { transform: translate(-50%, -50%) rotate(8deg) scale(1.01); }
  90%  { transform: translate(-50%, -50%) rotate(-3deg) scale(1); }
  100% { transform: translate(-50%, -50%) rotate(0deg) scale(1); }
}

/* --- 变格状态指示 --- */
.board-area.variant-mode #boardCanvas {
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow:
    var(--shadow-md),
    0 0 30px rgba(168, 85, 247, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

/* --- 移动端适配 --- */
@media (max-width: 960px) {
  .board-area {
    min-height: 300px;
    padding: 4px;
  }
  .dice-display {
    font-size: 44px;
  }
  .dice-number {
    width: 52px;
    height: 52px;
  }
}

@media (max-width: 600px) {
  .board-area {
    min-height: 240px;
    padding: 2px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  #boardCanvas {
    border-radius: 8px;
    border-width: 1px;
    /* 允许横向滚动查看完整棋盘 */
    min-width: 500px;
  }
  .dice-display {
    font-size: 38px;
    top: 40%;
  }
  .dice-number {
    width: 44px;
    height: 44px;
    border-radius: 10px;
  }
}