/* Custom styles for Vietnamese Speed Limit Labeling System */

/* Vietnamese font support */
body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Loading spinner */
.loading-spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #3498db;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 1s linear infinite;
    display: inline-block;
    margin-left: 10px;
}

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

/* Vietnamese specific styles */
.vietnamese-text {
    font-weight: 400;
    line-height: 1.6;
}

/* Button hover effects */
.btn-primary {
    transition: all 0.2s ease-in-out;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Task card styles */
.task-card {
    transition: all 0.2s ease-in-out;
    border: 2px solid transparent;
}

.task-card:hover {
    border-color: #3b82f6;
    transform: translateY(-2px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
}