#spinner {
    width: 100%;
    height: 100vh;
    background-color: rgba(170, 185, 175, 0.8);
    z-index: 100;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
}

#inner-spinner {
    width: 5rem;
    height: 5rem;
    border: 0.5rem solid transparent;
    border-top: 0.5rem solid #175047;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}