.youtube-notification{position:fixed;top:20px;right:20px;background:white;border-radius:8px;box-shadow:0 4px 12px #00000026;padding:16px 20px;max-width:350px;z-index:3001;transform:translate(400px);opacity:0;transition:all .3s ease;cursor:pointer;border-left:4px solid #2196f3}.youtube-notification.show{transform:translate(0);opacity:1}.notification-content{display:flex;align-items:center;gap:12px;font-size:14px;color:#333;line-height:1.4}.notification-content svg{flex-shrink:0}.stacked-notifications{position:fixed;top:20px;right:20px;z-index:1002;display:flex;flex-direction:column;gap:10px}@media (max-width: 768px){.youtube-notification{top:10px;right:10px;left:10px;max-width:none;padding:12px 16px;transform:translateY(-100px)}.youtube-notification.show{transform:translateY(0)}.notification-content{font-size:13px}}