:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--light-color);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
}

.sidebar-sticky {
    position: relative;
    top: 0;
    height: calc(100vh - 48px);
    padding-top: .5rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.sidebar .nav-link {
    font-weight: 500;
    color: #333;
    padding: 0.75rem 1rem;
    margin: 0.25rem 0;
    border-radius: 0.25rem;
    transition: all 0.15s ease-in-out;
}

.sidebar .nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(0, 123, 255, 0.1);
}

.sidebar .nav-link.active {
    color: var(--primary-color);
    background-color: rgba(0, 123, 255, 0.15);
    font-weight: 600;
}

.sidebar .nav-link .feather {
    margin-right: 0.5rem;
    color: #727272;
}

/* Cards personalizados */
.card {
    box-shadow: 0 0.15rem 1.75rem 0 rgba(33, 40, 50, 0.15);
    border: none;
}

.border-left-primary {
    border-left: 0.25rem solid var(--primary-color) !important;
}

.border-left-success {
    border-left: 0.25rem solid var(--success-color) !important;
}

.border-left-info {
    border-left: 0.25rem solid var(--info-color) !important;
}

.border-left-warning {
    border-left: 0.25rem solid var(--warning-color) !important;
}

.border-left-danger {
    border-left: 0.25rem solid var(--danger-color) !important;
}

/* Tabelas responsivas */
.table-responsive {
    border-radius: 0.35rem;
}

.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}

/* Badges de status */
.badge {
    font-size: 0.75em;
    font-weight: 500;
}

/* Botões */
.btn {
    border-radius: 0.35rem;
    font-weight: 500;
    transition: all 0.15s ease-in-out;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.775rem;
}

/* Alertas */
.alert {
    border: none;
    border-radius: 0.35rem;
    font-weight: 500;
}

.alert-success {
    background-color: #d1e7dd;
    color: #0a3622;
}

.alert-warning {
    background-color: #fff3cd;
    color: #664d03;
}

.alert-danger {
    background-color: #f8d7da;
    color: #58151c;
}

.alert-info {
    background-color: #d1ecf1;
    color: #055160;
}

/* Formulários */
.form-control {
    border-radius: 0.35rem;
    border: 1px solid #d1d3e2;
    transition: all 0.15s ease-in-out;
}

.form-control:focus {
    border-color: #bac8f3;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
    font-weight: 600;
    color: #5a5c69;
    margin-bottom: 0.5rem;
}

/* Status de documentos */
.status-vencido {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.status-critico {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.status-alerta {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

.status-valido {
    background-color: #d1e7dd;
    color: #155724;
    border-left: 4px solid var(--success-color);
}

/* Navbar */
.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

/* Footer */
footer {
    margin-top: 2rem;
    padding: 1rem 0;
    border-top: 1px solid #dee2e6;
    background-color: white;
}

/* Loading spinner */
.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .sidebar {
        position: relative;
        height: auto;
        padding: 0;
    }
    
    main {
        margin-left: 0 !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .table-responsive {
        font-size: 0.875rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        font-size: 0.875rem;
    }
}

/* Animações */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Utilities */
.text-xs {
    font-size: 0.7rem;
}

.font-weight-bold {
    font-weight: 700 !important;
}

.text-gray-300 {
    color: #dddfeb !important;
}

.text-gray-800 {
    color: #5a5c69 !important;
}

.text-uppercase {
    text-transform: uppercase !important;
}

/* Print styles */
@media print {
    .sidebar,
    .navbar,
    .btn,
    .no-print {
        display: none !important;
    }
    
    main {
        margin-left: 0 !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --light-color: #1a1a1a;
        --dark-color: #ffffff;
    }
    
    body {
        background-color: #1a1a1a;
        color: #ffffff;
    }
    
    .card {
        background-color: #2d2d2d;
        color: #ffffff;
    }
    
    .sidebar {
        background-color: #2d2d2d;
    }
    
    .sidebar .nav-link {
        color: #ffffff;
    }
}