.promotion-dialog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
  z-index: 1000;

  &.open {
    opacity: 1;
    visibility: visible;
  }
}

.promotion-dialog {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  max-width: 400px;
  width: 90%;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.promotion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #e0e0e0;

  h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
  }

  .close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #999;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;

    &:hover {
      color: #333;
    }
  }
}

.promotion-body {
  padding: 20px;
}

.promotion-prompt {
  margin: 0 0 20px 0;
  text-align: center;
  color: #666;
  font-size: 14px;
}

.promotion-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.promotion-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  background: #f5f5f5;
  border: 2px solid #ddd;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;

  &:hover {
    background: #e8e8e8;
    border-color: #999;
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }

  &:active {
    transform: translateY(0);
    box-shadow: none;
  }

  .piece-symbol {
    font-size: 32px;
    line-height: 1;
  }

  .piece-label {
    font-size: 12px;
    font-weight: 500;
    color: #666;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
}