.port-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    text-align: center;
}

.port-icon {
    background: white;
    border: 1px solid #aaa;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
    color: #1e90ff;
    font-size: 14px;
}

.port-label {
    background: white;
    padding: 1px 6px;
    font-size: 11px;
    border-radius: 3px;
    border: 1px solid #ccc;
    white-space: nowrap;
    margin-top: 2px;
    box-shadow: 0 0 1px rgba(0,0,0,0.1);
}