/* SPA-specific styles */

/* Loading state */
.loading {
    text-align: center;
    padding: 2rem;
    font-style: italic;
    opacity: 0.7;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #ccc;
    border-top: 2px solid #333;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
    vertical-align: middle;
}

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

/* Error state */
.error {
    text-align: center;
    padding: 2rem;
    color: #d32f2f;
    background-color: #ffebee;
    border: 1px solid #f8bbd9;
    border-radius: 4px;
    margin: 1rem 0;
}

/* Active navigation link */
nav a.active {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    font-weight: bold;
}

/* Smooth transitions for content */
#spa-content {
    transition: opacity 0.3s ease-in-out;
}

#spa-content.loading {
    opacity: 0.5;
}

/* Ensure proper spacing */
#spa-content > *:first-child {
    margin-top: 0;
}

#spa-content > *:last-child {
    margin-bottom: 0;
}