.flash-global{position:fixed;top:0;left:0;right:0;background:#28a745;color:#fff;padding:12px;text-align:center;font-weight:bold;z-index:2000;animation:fadein .3s}.flash-global.error{background:#dc3545}.flash-global.warning{background:#ffc107;color:#000}@keyframes fadein{from{opacity:0;}to{opacity:1;}}