@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
.gradient-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.file-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}
.progress-bar {
    transition: width 0.3s ease;
}
.connection-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}
.connected {
    background-color: #10B981;
}
.disconnected {
    background-color: #EF4444;
}