body {
    background-color: #f8f9fa;
    font-family: 'Montserrat', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #333;
}

.loading {
    text-align: center;
}

.spinner {
    border: 4px solid rgba(0, 123, 255, 0.3);
    border-radius: 50%;
    border-top: 4px solid #007BFF;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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