.flash-history-focus { animation: flashHistoryFocus 2.8s ease-out; }
    .flash-item-history-focus { animation: flashItemHistoryFocus 2.6s ease-out; }
    @keyframes flashHistoryFocus {
      0% { box-shadow: 0 0 0 0 rgba(37,99,235,0); }
      25% { box-shadow: 0 0 0 10px rgba(37,99,235,0.30); }
      55% { box-shadow: 0 0 0 6px rgba(96,165,250,0.18); }
      100% { box-shadow: 0 0 0 0 rgba(37,99,235,0); }
    }
    @keyframes flashItemHistoryFocus {
      0% { box-shadow: 0 0 0 0 rgba(37,99,235,0), inset 0 0 0 0 rgba(37,99,235,0); }
      30% { box-shadow: 0 0 0 6px rgba(37,99,235,0.22), inset 0 0 0 2px rgba(147,197,253,0.32); }
      65% { box-shadow: 0 0 0 3px rgba(59,130,246,0.18), inset 0 0 0 1px rgba(147,197,253,0.22); }
      100% { box-shadow: 0 0 0 0 rgba(37,99,235,0), inset 0 0 0 0 rgba(37,99,235,0); }
    }