:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
}

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

.product-image {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.card {
    border: none;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1) !important;
}

.btn {
    border-radius: 10px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0b5ed7 100%);
    border: none;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #157347 100%);
    border: none;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #b02a37 100%);
    border: none;
}

.success-icon,
.error-icon {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }

    100% {
        transform: scale(1);
    }
}

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

.badge {
    font-size: 0.9rem;
}

.input-group-sm .form-control {
    max-width: 60px;
}

footer {
    margin-top: auto;
}

@media (max-width: 768px) {
    .product-image {
        width: 60px;
        height: 60px;
    }

    .card-body {
        padding: 1rem;
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

@media print {

    .navbar,
    footer,
    .btn {
        display: none !important;
    }

    .card {
        box-shadow: none !important;
        border: 1px solid #dee2e6 !important;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fab {
    transition: all 0.3s ease;
}

.fab:hover {
    transform: scale(1.1);
}