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

/* Body & Layout */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f8f9fa;
}

main {
    flex: 1;
}

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

/* Cards */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* Statistiques Cards */
.card.bg-primary,
.card.bg-success,
.card.bg-info,
.card.bg-danger {
    border: none;
}

.card.bg-primary:hover,
.card.bg-success:hover,
.card.bg-info:hover,
.card.bg-danger:hover {
    transform: scale(1.05);
}

/* Table */
.table-hover tbody tr:hover {
    background-color: rgba(0, 123, 255, 0.1);
    cursor: pointer;
}

/* Contrôle de quantité */
.quantite-control {
    display: inline-flex;
}

.quantite-input {
    max-width: 80px;
}

.quantite-input::-webkit-inner-spin-button,
.quantite-input::-webkit-outer-spin-button {
    opacity: 1;
}

/* Animation de succès */
@keyframes successFlash {
    0% { background-color: #d1e7dd; }
    100% { background-color: transparent; }
}

.table-success {
    animation: successFlash 1s ease;
}

/* Badges */
.badge {
    padding: 0.5em 0.75em;
    font-weight: 500;
}

/* Boutons */
.btn {
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-group .btn {
    transform: none;
}

.btn-group .btn:hover {
    transform: none;
    box-shadow: none;
}

/* Formulaires */
.form-label {
    font-weight: 600;
    color: #495057;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Messages flash */
.alert {
    border-radius: 0.5rem;
    border: none;
}

/* Footer */
footer {
    margin-top: auto;
    border-top: 1px solid #dee2e6;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .quantite-control {
        max-width: 120px !important;
    }
}

@media (max-width: 576px) {
    .container-fluid {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .card-body {
        padding: 0.75rem;
    }
    
    .table-responsive {
        font-size: 0.75rem;
    }
    
    .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card {
    animation: fadeIn 0.5s ease;
}

/* Loader */
.loader {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Mode sombre (optionnel) */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #212529;
        color: #f8f9fa;
    }
    
    .card {
        background-color: #343a40;
        color: #f8f9fa;
    }
    
    .table {
        color: #f8f9fa;
    }
    
    .form-control,
    .form-select {
        background-color: #495057;
        color: #f8f9fa;
        border-color: #6c757d;
    }
}

/* Impression */
@media print {
    .navbar,
    .btn,
    footer,
    .card-header .btn {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #dee2e6;
    }
}