@keyframes move{0%,to{transform:translate(0);opacity:.6}25%{transform:translate(30px,-40px);opacity:1}50%{transform:translate(-20px,30px);opacity:.3}75%{transform:translate(40px,10px);opacity:.8}}.firefly{position:absolute;width:5px;height:5px;pointer-events:none;background:#c190f1;border-radius:50%;box-shadow:0 0 10px yellow;animation:move 5s ease-in-out infinite;z-index:1}.focus-container{position:relative;display:flex;gap:1em;justify-content:start;align-items:center;flex-wrap:wrap}.focus-word{position:relative;font-size:2rem;font-weight:800;cursor:pointer;transition:filter .3s ease,color .3s ease}.focus-word.active{filter:blur(0)}.focus-frame{position:absolute;top:0;left:0;pointer-events:none;box-sizing:content-box;border:none}.corner{position:absolute;width:1rem;height:1rem;border:3px solid var(--border-color,#fff);filter:drop-shadow(0 0 4px var(--border-color,#fff));border-radius:3px;transition:none}.top-left{left:-10px;border-right:none}.top-left,.top-right{top:-10px;border-bottom:none}.top-right{right:-10px;border-left:none}.bottom-left{left:-10px;border-right:none}.bottom-left,.bottom-right{bottom:-10px;border-top:none}.bottom-right{right:-10px;border-left:none}