/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --primary: #0066cc;
    --primary-hover: #0052a3;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
    --agent-bg: #e7f3ff;
    --agent-border: #b8daff;
    --header-height: 56px;
    --sidebar-width: 220px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

/* Layout */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

/* Context breadcrumb navigation */
.context-breadcrumb {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
}

.context-breadcrumb .separator {
    color: var(--text-muted);
    font-size: 12px;
}

.context-breadcrumb .context-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.context-breadcrumb .context-label {
    color: var(--text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.context-breadcrumb .context-value {
    color: var(--text-primary);
    font-weight: 500;
}

.context-breadcrumb .context-value.clickable {
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.15s;
}

.context-breadcrumb .context-value.clickable:hover {
    background: var(--bg-tertiary);
}

.context-breadcrumb select {
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    background: white;
    cursor: pointer;
    max-width: 180px;
}

.context-breadcrumb select:focus {
    outline: none;
    border-color: var(--primary);
}

.context-breadcrumb select.dataset-select {
    border-color: var(--primary);
    background: var(--agent-bg);
    color: var(--primary);
}

.context-breadcrumb .tax-year {
    background: var(--primary);
    color: white;
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-menu {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
}

.content-area {
    display: flex;
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 0 20px;
    margin-bottom: 8px;
}

.nav-item {
    display: block;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--agent-bg);
    color: var(--primary);
    font-weight: 500;
}

/* Main content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 24px 32px;
}

.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 4px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
}

.card h3 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* Dashboard grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.engagement-summary .summary-stats {
    display: flex;
    gap: 32px;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 32px;
    font-weight: 600;
    color: var(--primary);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Entity status rows */
.entity-status-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.entity-status-row {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    padding: 8px;
    margin: -8px;
    border-radius: 4px;
    transition: background 0.15s;
}

.entity-status-row:hover {
    background: var(--bg-tertiary);
}

.entity-name {
    width: 180px;
    font-size: 14px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.3s;
}

.progress-label {
    width: 80px;
    text-align: right;
    font-size: 13px;
    color: var(--text-secondary);
}

.progress-label.complete {
    color: var(--success);
    font-weight: 500;
}

/* Alerts */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 14px;
}

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

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

.alert-item.info {
    background: var(--agent-bg);
    color: var(--primary);
}

.alert-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.alert-item.warning .alert-icon {
    background: #ffc107;
    color: #212529;
}

.alert-item.error .alert-icon {
    background: #dc3545;
    color: white;
}

.alert-item.info .alert-icon {
    background: var(--primary);
    color: white;
}

/* Agent suggestions */
.suggestion-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.suggestion-item {
    background: var(--agent-bg);
    border: 1px solid var(--agent-border);
    border-radius: 6px;
    padding: 14px;
}

.suggestion-text {
    font-size: 14px;
    margin-bottom: 12px;
}

.suggestion-actions {
    display: flex;
    gap: 8px;
}

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

.activity-item {
    display: flex;
    gap: 12px;
    font-size: 14px;
}

.activity-time {
    width: 80px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.activity-text {
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

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

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

/* Entity context header (when entity is selected) */
.entity-context {
    background: var(--bg-tertiary);
    padding: 12px 32px;
    margin: -24px -32px 24px -32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.entity-info {
    display: flex;
    align-items: baseline;
    gap: 16px;
}

.entity-title {
    font-size: 18px;
    font-weight: 600;
}

.tax-year-badge {
    background: var(--primary);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

/* Secondary nav for entity pages */
.entity-nav {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.entity-nav-item {
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 0.15s;
}

.entity-nav-item:hover {
    color: var(--text-primary);
}

.entity-nav-item.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Data grid */
.data-grid {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.data-grid table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
    font-size: 13px;
}

.data-grid th,
.data-grid td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-grid th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    color: var(--text-secondary);
}

.data-grid tbody tr:hover {
    background: #fafafa;
}

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

.data-grid .number {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.data-grid .status-icon {
    width: 24px;
    text-align: center;
}

.data-grid .status-mapped {
    color: var(--success);
}

.data-grid .status-needs-review {
    color: var(--warning);
}

.data-grid .status-unmapped {
    color: var(--text-muted);
}

.data-grid select {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 13px;
    background: white;
}

.data-grid select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
}

/* Inline agent suggestion */
.agent-inline {
    background: var(--agent-bg);
    border: 1px solid var(--agent-border);
    border-radius: 6px;
    padding: 14px;
    margin-top: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.agent-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.agent-content {
    flex: 1;
}

.agent-content p {
    font-size: 14px;
    margin-bottom: 12px;
}

.agent-content .highlight {
    background: white;
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: 500;
}

/* Page toolbar */
.page-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.page-toolbar .spacer {
    flex: 1;
}

.mapping-stats {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Dashboard cards for entity */
.entity-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.metric-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

.metric-card .metric-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 8px;
}

.metric-card .metric-value {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 4px;
}

.metric-card .metric-subtext {
    font-size: 13px;
    color: var(--text-muted);
}

.metric-card.status-good .metric-value {
    color: var(--success);
}

.metric-card.status-warning .metric-value {
    color: var(--warning);
}

/* Workflow progress */
.workflow-steps {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
}

.workflow-step {
    flex: 1;
    text-align: center;
    padding: 16px;
    position: relative;
}

.workflow-step::after {
    content: '';
    position: absolute;
    top: 32px;
    right: 0;
    width: 50%;
    height: 2px;
    background: var(--border-color);
}

.workflow-step::before {
    content: '';
    position: absolute;
    top: 32px;
    left: 0;
    width: 50%;
    height: 2px;
    background: var(--border-color);
}

.workflow-step:first-child::before,
.workflow-step:last-child::after {
    display: none;
}

.workflow-step.complete::after,
.workflow-step.complete::before,
.workflow-step.current::before {
    background: var(--primary);
}

.step-indicator {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.workflow-step.complete .step-indicator {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.workflow-step.current .step-indicator {
    border-color: var(--primary);
    background: white;
}

.step-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.workflow-step.complete .step-label,
.workflow-step.current .step-label {
    color: var(--text-primary);
}

/* Summary section */
.summary-section {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
    font-size: 14px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--bg-tertiary);
}

.summary-row:last-child {
    border-bottom: none;
}

.summary-row.total {
    font-weight: 600;
    border-top: 2px solid var(--text-primary);
    margin-top: 8px;
    padding-top: 12px;
}

.summary-label {
    color: var(--text-secondary);
}

.summary-value {
    font-variant-numeric: tabular-nums;
}

/* Review status badges */
.review-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.review-badge.pending {
    background: #fff3cd;
    color: #856404;
}

.review-badge.approved {
    background: #d4edda;
    color: #155724;
}

.review-badge.not-started {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 1200px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .entity-dashboard-grid {
        grid-template-columns: 1fr 1fr;
    }
}