.hub-top-avatar {
            position: fixed;
            top: 20px;
            left: 20px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 2px solid var(--accent-purple);
            box-shadow: 0 0 15px rgba(138, 43, 226, 0.55);
            overflow: hidden;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(15, 15, 19, 0.85);
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }
        .hub-top-avatar:hover {
            transform: scale(1.08);
            border-color: var(--accent-orange);
            box-shadow: 0 0 20px rgba(255, 157, 0, 0.7);
        }
        .hub-top-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }