.footer {
    position: fixed;
    bottom: 0;
    width: 100%;
    padding: 1.5rem;
    text-align: center;
    color: #ffffff99;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 2;
}