body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    margin: 0;
    padding: 1rem;
    color: #333;
    text-align: center;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top-color: #007aff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1.5rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}