:root {
            --primary-color: #1a73e8;
            --primary-dark: #0d47a1;
            --primary-light: #64b5f6;
            --secondary-color: #f5f5f5;
            --text-color: #333;
            --text-light: #fff;
            --success-color: #4caf50;
            --warning-color: #ff9800;
            --danger-color: #f44336;
            --border-radius: 8px;
            --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: #f8f9fa;
            color: var(--text-color);
            line-height: 1.6;
        }

        /* Header e Navegação */
        header {
            background-color: var(--primary-color);
            color: var(--text-light);
            padding: 15px 20px;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: var(--box-shadow);
        }

        .logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: bold;
        }

        .logo i {
            margin-right: 10px;
        }

        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }

        nav {
            display: flex;
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 20px;
        }

        nav ul li a {
            color: var(--text-light);
            text-decoration: none;
            padding: 5px 10px;
            border-radius: var(--border-radius);
            transition: background-color 0.3s;
        }

        nav ul li a:hover {
            background-color: var(--primary-dark);
        }

        /* Conteúdo Principal */
        .container {
            max-width: 1200px;
            margin: 80px auto 20px;
            padding: 20px;
        }

        .page-title {
            margin-bottom: 20px;
            color: var(--primary-color);
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 10px;
        }

        /* Cards */
        .card {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 20px;
            margin-bottom: 20px;
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }

        .card-title {
            font-size: 1.2rem;
            color: var(--primary-color);
        }

        /* Formulários */
        .form-group {
            margin-bottom: 15px;
        }

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: var(--border-radius);
            font-size: 1rem;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
        }

        /* Botões */
        .btn {
            display: inline-block;
            padding: 10px 15px;
            border: none;
            border-radius: var(--border-radius);
            cursor: pointer;
            font-size: 1rem;
            transition: background-color 0.3s, transform 0.2s;
        }

        .btn:hover {
            transform: translateY(-2px);
        }

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

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

        .btn-success {
            background-color: var(--success-color);
            color: var(--text-light);
        }

        .btn-warning {
            background-color: var(--warning-color);
            color: var(--text-light);
        }

        .btn-danger {
            background-color: var(--danger-color);
            color: var(--text-light);
        }

        .btn-sm {
            padding: 5px 10px;
            font-size: 0.85rem;
        }

        /* Tabelas */
        .table-responsive {
            overflow-x: auto;
        }

        table {
            width: 100%;
            border-collapse: collapse;
        }

        table th, table td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #ddd;
        }

        table th {
            background-color: var(--primary-color);
            color: var(--text-light);
        }

        table tr:nth-child(even) {
            background-color: #f2f2f2;
        }

        table tr:hover {
            background-color: #e9f0f7;
        }

        .action-buttons {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        /* Dashboard */
        .stats-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 20px;
        }

        .stat-card {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 20px;
            text-align: center;
        }

        .stat-value {
            font-size: 2rem;
            font-weight: bold;
            color: var(--primary-color);
            margin: 10px 0;
        }

        .stat-label {
            color: #666;
        }

        .charts-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .chart-card {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 20px;
        }

        /* Modal */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 2000;
            justify-content: center;
            align-items: center;
        }

        .modal-content {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            width: 90%;
            max-width: 600px;
            padding: 20px;
            max-height: 90vh;
            overflow-y: auto;
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            border-bottom: 1px solid #ddd;
            padding-bottom: 10px;
        }

        .close {
            font-size: 1.5rem;
            cursor: pointer;
        }

        /* Menu Sanduíche */
        .sidebar {
            position: fixed;
            top: 70px;
            right: -300px;
            width: 300px;
            height: calc(100vh - 70px);
            background-color: white;
            box-shadow: var(--box-shadow);
            transition: right 0.3s ease;
            z-index: 999;
            overflow-y: auto;
        }

        .sidebar.open {
            right: 0;
        }

        .sidebar ul {
            list-style: none;
            padding: 20px;
        }

        .sidebar ul li {
            margin-bottom: 15px;
        }

        .sidebar ul li a {
            display: block;
            padding: 10px 15px;
            color: var(--text-color);
            text-decoration: none;
            border-radius: var(--border-radius);
            transition: background-color 0.3s;
        }

        .sidebar ul li a:hover {
            background-color: var(--primary-light);
            color: var(--text-light);
        }

        /* Abas */
        .tabs {
            display: flex;
            flex-wrap: wrap;
            margin-bottom: 20px;
            border-bottom: 1px solid #ddd;
        }

        .tab-btn {
            padding: 10px 20px;
            cursor: pointer;
            background: #f1f1f1;
            border: 1px solid #ddd;
            border-bottom: none;
            margin-right: 5px;
            border-top-left-radius: 5px;
            border-top-right-radius: 5px;
        }

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

        .tab-content {
            display: none;
            width: 100%;
            padding: 20px;
            border: 1px solid #ddd;
            border-top: none;
        }

        .tab-content.active {
            display: block;
        }

        /* Responsividade */
        @media (max-width: 768px) {
            .menu-toggle {
                display: block;
            }

            nav ul {
                display: none;
            }

            .charts-container {
                grid-template-columns: 1fr;
            }

            .action-buttons {
                flex-direction: row;
                flex-wrap: wrap;
            }
        }