/**
 * PWA 更新提示样式
 */

.pwa-update-prompt {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out, transform 0.3s ease-in-out;
  pointer-events: none;
}

.pwa-update-prompt.show {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, -50%);
}

.pwa-update-content {
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  padding: 24px 28px;
  min-width: 280px;
  max-width: 90%;
  box-shadow: 
    0 4px 24px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.pwa-update-message {
  color: #000000;
  font-size: 15px;
  font-weight: 500;
  text-align: center;
  margin: 0;
  line-height: 1.6;
}

.pwa-update-actions {
  display: flex;
  gap: 12px;
  width: 100%;
  justify-content: center;
}

.pwa-update-btn {
  background: #000000;
  color: #ffffff;
  border: none;
  border-radius: 12px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, opacity 0.2s;
  flex: 1;
  max-width: 140px;
}

.pwa-update-btn:hover {
  background: #333333;
  opacity: 0.9;
}

.pwa-update-btn:active {
  transform: scale(0.98);
  opacity: 0.8;
}

.pwa-update-dismiss {
  background: transparent;
  color: #666666;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s, transform 0.1s;
  flex: 1;
  max-width: 140px;
}

.pwa-update-dismiss:hover {
  color: #000000;
  border-color: rgba(0, 0, 0, 0.3);
  background: rgba(0, 0, 0, 0.05);
}

.pwa-update-dismiss:active {
  transform: scale(0.98);
}

/* 响应式设计 */
@media (max-width: 480px) {
  .pwa-update-prompt {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: calc(100% - 32px);
  }

  .pwa-update-prompt.show {
    transform: translate(-50%, -50%);
  }

  .pwa-update-content {
    min-width: auto;
    width: 100%;
    padding: 20px 24px;
  }

  .pwa-update-actions {
    flex-direction: column;
    gap: 10px;
  }

  .pwa-update-btn,
  .pwa-update-dismiss {
    max-width: 100%;
    width: 100%;
  }
}