body {
    background-color: #f8f9fa;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.card {
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    border: none;
    margin-bottom: 1rem;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    font-weight: bold;
}

.btn-primary {
    background-color: #0d6efd;
    border-color: #0d6efd;
}

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
}

.table th {
    background-color: #f8f9fa;
}

footer {
    margin-top: auto;
}

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

/* Responsywność */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .display-4 {
        font-size: 2rem;
    }
}

/* Styl dla formularzy */
.form-control:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Alerty */
.alert {
    border-radius: 10px;
}

/* Karty na dashboardzie */
.card.bg-primary, .card.bg-success, .card.bg-info, .card.bg-warning {
    transition: transform 0.2s;
}

.card.bg-primary:hover, .card.bg-success:hover, .card.bg-info:hover, .card.bg-warning:hover {
    transform: translateY(-5px);
}

/* Przyciski akcji */
.btn-sm {
    margin: 0 2px;
}