:root {
    /* Paleta de cores do FluxUP */
    --primary: #1e3a5f;
    --primary-dark: #152a45;
    --primary-light: #2a4d7c;
    
    --secondary: #00acc1;
    --secondary-dark: #008c9e;
    --secondary-light: #26c6da;
    
    --success: #4caf50;
    --success-light: #81c784;
    --danger: #f44336;
    --danger-light: #ef5350;
    --warning: #ff9800;
    --warning-light: #ffb74d;
    --info: #2196f3;
    --info-light: #64b5f6;
    
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;
    
    --sidebar-width: 260px;
    --top-bar-height: 64px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-100);
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
}

.sidebar .logo {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar .logo i {
    color: var(--secondary);
    font-size: 28px;
}

.nav-menu {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background: rgba(0, 172, 193, 0.2);
    color: white;
    border-left: 3px solid var(--secondary);
}

.nav-item i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-details {
    display: flex;
    flex-direction: column;
    font-size: 12px;
}

.user-name {
    font-weight: 600;
    color: white;
}

.user-role {
    color: rgba(255, 255, 255, 0.6);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: var(--transition);
}

/* Top Bar */
.top-bar {
    height: var(--top-bar-height);
    background: white;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-700);
    cursor: pointer;
}

.search-bar {
    flex: 1;
    max-width: 600px;
    position: relative;
}

.search-bar i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray-400);
}

.search-bar input {
    width: 100%;
    padding: 10px 16px 10px 44px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.1);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--gray-100);
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
}

.icon-btn:hover {
    background: var(--gray-200);
    color: var(--primary);
}

.icon-btn.notifications {
    position: relative;
}

.badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Page Content */
.page-content {
    padding: 24px;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.page-actions {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

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

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

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

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.kpi-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.kpi-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.kpi-icon.success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
}

.kpi-icon.danger {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
}

.kpi-icon.warning {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}

.kpi-icon.info {
    background: rgba(33, 150, 243, 0.1);
    color: var(--info);
}

.kpi-content {
    flex: 1;
}

.kpi-label {
    font-size: 12px;
    color: var(--gray-600);
    display: block;
    margin-bottom: 4px;
}

.kpi-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.kpi-trend {
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.kpi-trend.positive {
    color: var(--success);
}

.kpi-trend.negative {
    color: var(--danger);
}

.kpi-trend.neutral {
    color: var(--gray-600);
}

/* Section */
.section {
    margin-bottom: 32px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
}

.link-btn {
    color: var(--secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.link-btn:hover {
    color: var(--secondary-dark);
    text-decoration: underline;
}

/* Alerts */
.alerts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.alert-item {
    background: white;
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid;
}

.alert-item.danger {
    border-color: var(--danger);
}

.alert-item.warning {
    border-color: var(--warning);
}

.alert-item.info {
    border-color: var(--info);
}

.alert-item i {
    font-size: 24px;
}

.alert-item.danger i {
    color: var(--danger);
}

.alert-item.warning i {
    color: var(--warning);
}

.alert-item.info i {
    color: var(--info);
}

.alert-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.alert-title {
    font-weight: 600;
    color: var(--gray-900);
}

.alert-desc {
    font-size: 12px;
    color: var(--gray-600);
}

/* Charts */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

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

.chart-header {
    margin-bottom: 20px;
}

.chart-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
}

.chart-container {
    position: relative;
    height: 300px;
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.activity-item {
    background: white;
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.activity-icon.success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
}

.activity-icon.info {
    background: rgba(33, 150, 243, 0.1);
    color: var(--info);
}

.activity-icon.warning {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}

.activity-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.activity-title {
    font-weight: 600;
    color: var(--gray-900);
}

.activity-desc {
    font-size: 13px;
    color: var(--gray-600);
}

.activity-time {
    font-size: 12px;
    color: var(--gray-500);
}

/* Table */
.table-filters {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.filter-input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 14px;
}

.filter-select {
    padding: 10px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 14px;
    background: white;
    cursor: pointer;
}

.table-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
}

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

.data-table thead {
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 13px;
    white-space: nowrap;
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover {
    background: var(--gray-50);
}

.table-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.table-user .user-avatar {
    width: 32px;
    height: 32px;
    font-size: 12px;
}

.badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
}

.badge-danger {
    background: rgba(244, 67, 54, 0.1);
    color: var(--danger);
}

.badge-warning {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}

.badge-info {
    background: rgba(33, 150, 243, 0.1);
    color: var(--info);
}

.badge-primary {
    background: rgba(30, 58, 95, 0.1);
    color: var(--primary);
}

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

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

.table-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 20px;
    font-size: 14px;
    color: var(--gray-600);
}

.pagination {
    display: flex;
    gap: 8px;
}

.pagination-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--gray-300);
    background: white;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    background: var(--gray-100);
    border-color: var(--secondary);
}

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

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.settings-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.settings-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.settings-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.settings-header i {
    font-size: 32px;
    color: var(--secondary);
}

.settings-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
}

.settings-card p {
    color: var(--gray-600);
    margin-bottom: 16px;
    font-size: 13px;
}

/* Reports */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.report-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition);
}

.report-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.report-card i {
    font-size: 48px;
    color: var(--secondary);
    margin-bottom: 12px;
}

.report-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.report-card p {
    font-size: 13px;
    color: var(--gray-600);
    margin-bottom: 16px;
}

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

.modal.active {
    display: flex;
}

.modal-dialog {
    background: white;
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.modal-dialog.modal-lg {
    max-width: 900px;
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: none;
    font-size: 24px;
    color: var(--gray-600);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 20px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Forms */
.form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-tabs {
    display: flex;
    gap: 8px;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 16px;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background: none;
    color: var(--gray-600);
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: var(--transition);
}

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

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

.tab-content {
    display: none;
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(0, 172, 193, 0.1);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-totals {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid var(--gray-200);
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.total-row.total-final {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
    padding-top: 12px;
    border-top: 2px solid var(--gray-200);
    margin-top: 8px;
}

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    
    .kpi-grid {
        grid-template-columns: 1fr;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .table-card {
        overflow-x: scroll;
    }
    
    .modal-dialog {
        width: 95%;
    }
}