/* Custom Loading Spinner */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Alternative spinner with dots */
.spinner-dots {
    display: inline-block;
    width: 16px;
    height: 16px;
    position: relative;
}

.spinner-dots:before,
.spinner-dots:after {
    content: '';
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #3498db;
    animation: spinner-dots 1.2s infinite ease-in-out;
}

.spinner-dots:before {
    left: 0;
    animation-delay: -0.32s;
}

.spinner-dots:after {
    right: 0;
    animation-delay: 0.32s;
}

@keyframes spinner-dots {
    0%, 80%, 100% {
        transform: scale(0);
    }
    40% {
        transform: scale(1);
    }
}