#flash-container{position:absolute;top:20px;left:50%;transform:translateX(-50%);z-index:9999;width:auto;max-width:90%}.flash-message{min-width:280px;margin-bottom:10px;padding:12px 16px;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.15);opacity:1;transition:opacity .5s ease,transform .5s ease}