body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8f9fa;
}

.navbar-brand {
    font-weight: bold;
}

.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
}

.table {
    background-color: white;
}

.btn {
    margin-right: 5px;
}

.content-section {
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    border-radius: 10px;
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

@media (max-width: 768px) {
    .container-fluid {
        padding: 10px;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

#dashboard .card {
    transition: transform 0.2s;
}

#dashboard .card:hover {
    transform: translateY(-2px);
}

.chart-container {
    position: relative;
    height: 300px;
    margin: 20px 0;
}