/* Computer Zila Invoice Manager - Styles */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --danger-color: #dc3545;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8f9fa;
    color: #333;
}

/* Sidebar */
.sidebar {
    background-color: #f8f9fa;
    border-right: 1px solid #dee2e6;
    height: 100%;
    padding: 0;
}

.sidebar .nav-link {
    color: #333;
    padding: 0.75rem 1rem;
    border-left: 3px solid transparent;
    transition: all 0.3s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    color: var(--primary-color);
    border-left-color: var(--primary-color);
    background-color: #e9ecef;
}

/* Main Content */
main {
    padding: 2rem;
    background-color: #f8f9fa;
    min-height: calc(100vh - 56px);
}

/* Cards */
.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;
    padding: 1rem;
}

/* Tables */
.table {
    background-color: white;
    margin-bottom: 0;
}

.table thead th {
    background-color: #f8f9fa;
    border-top: 1px solid #dee2e6;
    font-weight: 600;
    color: #333;
    
}

.table td {
    
    vertical-align: middle;
}

/* Buttons */
.btn {
    border: none;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #0b5ed7;
    transform: translateY(-2px);
    box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.1);
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 500;
}

/* Forms */
.form-control,
.form-select {
    border: 1px solid #dee2e6;
    padding: 0.75rem;
    border-radius: 0.25rem;
}

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

/* Alerts */
.alert {
    border-radius: 0.25rem;
    border: none;
    padding: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* Footer */
footer {
    background-color: white;
    border-top: 1px solid #dee2e6;
    padding: 1.5rem 0;
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: absolute;
        width: 100%;
        z-index: 1000;
    }

    main {
        padding: 1rem;
    }

    .card {
        margin-bottom: 1rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .sidebar,
    footer,
    .btn,
    .no-print {
        display: none !important;
    }

    body {
        background: white;
    }

    main {
        background: white;
        padding: 0;
        margin: 0;
    }

    .card {
        box-shadow: none;
        page-break-inside: avoid;
    }
}