/* Modern Banking Dashboard Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Monochrome Palette */
    --primary-blue: #000000;
    --primary-dark: #000000;
    --secondary-blue: #000000;
    --accent-gold: #000000;
    --accent-green: #000000;
    --accent-red: #000000;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f7f7f7;
    --gray-100: #eeeeee;
    --gray-200: #d6d6d6;
    --gray-300: #b3b3b3;
    --gray-400: #8a8a8a;
    --gray-500: #666666;
    --gray-600: #444444;
    --gray-700: #2e2e2e;
    --gray-800: #1f1f1f;
    --gray-900: #111111;
    
    /* Gradients (collapse to solid black) */
    --gradient-primary: #000000;
    --gradient-success: #000000;
    --gradient-warning: #000000;
    --gradient-danger: #000000;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font-family);
    background: var(--white);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: none;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--gray-200);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    gap: 0.75rem;
}

.nav-brand i {
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--black);
    background: var(--gray-100);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: var(--black);
    border-radius: 50%;
}

/* Dashboard Container */
.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Sections */
.section {
    display: none;
}

.section.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.section-header h1 i {
    color: var(--black);
}

.section-header p {
    font-size: 1.25rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.metric-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: none;
    border: 1px solid var(--gray-200);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--black);
}

.metric-card:hover {
    transform: translateY(-3px);
}

.churn-card::before { background: var(--black); }
.fraud-card::before { background: var(--black); }
.data-card::before { background: var(--black); }
.features-card::before { background: var(--black); }

.metric-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    background: var(--black);
    color: var(--white);
}

.churn-card .metric-icon { background: var(--black); }
.fraud-card .metric-icon { background: var(--black); }
.features-card .metric-icon { background: var(--black); }

.metric-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.metric-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--black);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 1rem;
    color: var(--gray-500);
    margin-bottom: 1rem;
}

.metric-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray-600);
}

.detail-item i {
    color: var(--black);
    width: 16px;
}

.metric-status {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.metric-status.success {
    background: var(--gray-100);
    color: var(--black);
}

.metric-status.info {
    background: var(--gray-100);
    color: var(--black);
}

/* Impact Section */
.impact-section {
    background: var(--white);
    border-radius: 1rem;
    padding: 3rem;
    box-shadow: none;
    border: 1px solid var(--gray-200);
    margin-top: 3rem;
}

.impact-section h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.impact-section h2 i { color: var(--black); }

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.impact-card {
    text-align: center;
    padding: 2rem;
    border-radius: 1rem;
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    transition: all 0.3s ease;
}

.impact-card:hover { border-color: var(--black); transform: translateY(-2px); }

.impact-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
}

.impact-stat {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1rem;
}

.impact-card p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Insights Section */
.insights-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.insight-panel {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: none;
    border: 1px solid var(--gray-200);
}

.insight-panel.full-width {
    grid-column: 1 / -1;
}

.insight-panel h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.insight-panel h3 i { color: var(--black); }

.chart-container {
    height: 300px;
    margin-bottom: 1.5rem;
}

.insight-summary {
    border-top: 1px solid var(--gray-200);
    padding-top: 1.5rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-100);
}

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

.summary-item .label {
    font-weight: 600;
    color: var(--gray-700);
}

.summary-item .value { color: var(--black); font-weight: 500; }

/* Feature Importance */
.feature-importance {
    space-y: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-name {
    flex: 1;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.importance-bar {
    flex: 2;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.bar-fill {
    height: 100%;
    background: var(--black);
    border-radius: 4px;
    transition: width 0.8s ease;
}

.importance-value {
    font-weight: 600;
    color: var(--black);
    font-size: 0.875rem;
    min-width: 40px;
    text-align: right;
}

/* Models Section */
.models-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.model-panel {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: none;
    border: 1px solid var(--gray-200);
}

.model-panel h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.model-panel h3 i { color: var(--black); }

.model-metrics {
    margin-bottom: 2rem;
}

.metric-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.metric-name {
    font-weight: 600;
    color: var(--gray-700);
    min-width: 80px;
}

.metric-progress {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: 1rem;
}

.progress-bar {
    flex: 1;
    height: 12px;
    background: var(--gray-200);
    border-radius: 6px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--black);
    border-radius: 6px;
    transition: width 0.8s ease;
}

.metric-percent {
    font-weight: 700;
    color: var(--black);
    min-width: 60px;
    text-align: right;
}

.model-details {
    border-top: 1px solid var(--gray-200);
    padding-top: 1.5rem;
}

.model-details p {
    margin-bottom: 0.75rem;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.model-details strong {
    color: var(--gray-800);
}

/* Visualization Panel */
.visualization-panel {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.visualization-panel h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.visualization-panel h3 i {
    color: var(--primary-blue);
}

/* Prediction Section */
.prediction-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 3rem;
}

.prediction-panel {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
}

.prediction-panel h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.prediction-panel h3 i {
    color: var(--primary-blue);
}

.prediction-form {
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

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

.form-group label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.form-group input,
.form-group select {
    padding: 0.75rem;
    border: 2px solid var(--gray-300);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    transition: border-color 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.form-note {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.form-note p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin: 0;
}

.form-note i {
    color: var(--primary-blue);
    margin-right: 0.5rem;
}

.predict-btn {
    width: 100%;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.predict-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.predict-btn:active {
    transform: translateY(0);
}

.prediction-result {
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    font-weight: 600;
    display: none;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.prediction-result.show {
    display: block;
}

.prediction-result.high-risk { background: var(--gray-50); border: 2px solid var(--black); color: var(--black); }

.prediction-result.medium-risk { background: var(--gray-50); border: 2px solid var(--gray-600); color: var(--gray-600); }

.prediction-result.low-risk { background: var(--gray-50); border: 2px solid var(--gray-300); color: var(--gray-600); }

.result-score {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.result-details {
    font-size: 1rem;
    opacity: 0.8;
}

/* Business Insights Cards */
.business-insights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.insight-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.insight-card {
    padding: 2rem;
    border-radius: 1rem;
    border: 2px solid;
    background: var(--white);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.insight-card.critical {
    border-color: #dc2626;
    background: linear-gradient(135deg, #fef2f2 0%, #ffffff 100%);
}

.insight-card.warning {
    border-color: #f59e0b;
    background: linear-gradient(135deg, #fffbeb 0%, #ffffff 100%);
}

.insight-card.opportunity {
    border-color: #3b82f6;
    background: linear-gradient(135deg, #eff6ff 0%, #ffffff 100%);
}

.insight-card.success {
    border-color: #10b981;
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white);
}

.critical-icon {
    background: #dc2626;
}

.warning-icon {
    background: #f59e0b;
}

.opportunity-icon {
    background: #3b82f6;
}

.success-icon {
    background: #10b981;
}

.card-header h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
    margin: 0;
}

.insight-card p {
    font-size: 1rem;
    color: var(--gray-700);
    margin: 0 0 1.5rem 0;
    line-height: 1.6;
}

.insight-card strong {
    color: var(--black);
    font-weight: 600;
}

.card-action {
    display: flex;
    justify-content: flex-end;
}

.priority-badge {
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.priority-badge.urgent {
    background: #dc2626;
    color: var(--white);
}

.priority-badge.high {
    background: #f59e0b;
    color: var(--white);
}

.priority-badge.medium {
    background: #3b82f6;
    color: var(--white);
}

.priority-badge.success {
    background: #10b981;
    color: var(--white);
}

/* Enhanced Prediction Section */
.prediction-panel.enhanced {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.prediction-panel.enhanced:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-2px);
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--gray-200);
}

.panel-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--white);
}

.churn-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.fraud-icon {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
}

.panel-title h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    margin: 0 0 0.5rem 0;
}

.panel-title p {
    font-size: 1rem;
    color: var(--gray-600);
    margin: 0;
}

.enhanced-form {
    padding: 2rem;
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--gray-50);
    border-radius: 0.75rem;
    border: 1px solid var(--gray-200);
}

.form-section h4 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    margin: 0 0 1.5rem 0;
}

.form-section h4 i {
    color: var(--gray-500);
}

.input-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
    font-style: italic;
}

.checkbox-group.enhanced {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    color: var(--black);
    cursor: pointer;
    padding: 0.75rem;
    border-radius: 0.5rem;
    transition: background-color 0.2s ease;
}

.checkbox-label:hover {
    background: var(--gray-100);
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #3b82f6;
    border-color: #3b82f6;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: var(--white);
    font-weight: bold;
    font-size: 0.875rem;
}

.form-info {
    margin-bottom: 2rem;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: 1px solid #3b82f6;
    border-radius: 0.75rem;
}

.info-card i {
    color: #3b82f6;
    font-size: 1.25rem;
    margin-top: 0.125rem;
}

.info-card p {
    color: var(--gray-700);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.predict-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.predict-btn.primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.predict-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.predict-btn.secondary {
    background: var(--white);
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.predict-btn.secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
    transform: translateY(-1px);
}

.enhanced-result {
    margin-top: 2rem;
    padding: 2rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .dashboard-container {
        padding: 1.5rem;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .section-header h1 {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .insights-container,
    .models-container,
    .prediction-container {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .impact-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .dashboard-container {
        padding: 1rem;
    }
    
    .metric-card,
    .insight-panel,
    .model-panel,
    .prediction-panel {
        padding: 1.5rem;
    }
    
    .section-header h1 {
        font-size: 1.75rem;
    }
    
    .metric-value {
        font-size: 2rem;
    }
    
    .impact-stat {
        font-size: 2rem;
    }
}