/* assets/custom.css */

/* --- General & Typography (Item 7, 11) --- */
body {
    background-color: #F7F9FC; /* Neutral background */
    color: #212B36; /* Dark text */
    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif;
    font-size: 14px;
}

/* Use H1 from dbc.Container/app.layout directly */
.h1, h1 {
    font-size: 24px; /* H2 equivalent in request */
    font-weight: 600;
}

/* Card titles */
.card-title.h5, .h5.card-title {
    font-size: 18px; /* H3 equivalent */
    font-weight: 600;
    margin-bottom: 1rem; /* Add space below title */
}

/* Form labels (Item 2) */
.form-label {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 0.3rem; /* Space between label and input */
    display: block; /* Ensure it takes full width */
}

/* Form inputs (Item 2) */
.form-control,
.form-select {
    font-size: 14px;
    /* width: 100%; Ensure inputs take full width - Bootstrap usually handles this in columns */
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem; /* Softer corners */
}

/* Form help text */
.form-text {
    font-size: 12px;
    color: #6c757d; /* Muted color */
}

/* --- Layout & Spacing (Item 1, 7) --- */
.container-fluid {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* Spacing between form rows inside cards */
.card-body .mb-3 {
    margin-bottom: 1rem !important; /* Default is 1rem, ensure consistency */
}

/* Spacing between cards */
.card {
    margin-bottom: 24px;
    border: 1px solid #dee2e6; /* Subtle border */
    border-radius: 0.5rem; /* Consistent radius */
    box-shadow: 0 2px 4px rgba(0,0,0,0.05); /* Subtle shadow */
    /* Padding is handled by card-body */
}

/* --- Button Styling (Item 4, 5, 11) --- */

/* Primary Action Button (Generate Schedule) */
#generate-button.btn-primary {
    background-color: #0A74DA; /* Accent color */
    border-color: #0A74DA;
    font-weight: 500;
    padding: 0.6rem 1.2rem; /* Slightly larger padding */
}

#generate-button.btn-primary:hover,
#generate-button.btn-primary:focus {
    background-color: #085ead; /* Darker accent on hover/focus */
    border-color: #085ead;
}

#generate-button.btn-primary:disabled {
    background-color: #a0cff7; /* Lighter, muted accent when disabled */
    border-color: #a0cff7;
}

/* Strategy Toggle Buttons */
.btn-group .btn {
    margin-right: 0.5rem; /* Space between buttons */
    margin-bottom: 0.5rem; /* Space for wrapping */
    border-radius: 1rem; /* Pill shape */
    padding: 0.4rem 0.8rem;
    font-size: 13px;
}

/* Active strategy button */
.btn-group .btn.btn-primary:not(.disabled):not(:disabled).active,
.btn-group .btn.btn-primary:not(.disabled):not(:disabled):active {
    background-color: #0A74DA; /* Accent color */
    border-color: #0A74DA;
    color: white;
    box-shadow: none; /* Remove default active shadow if needed */
}

/* Inactive strategy button (using outline secondary) */
.btn-group .btn.btn-outline-secondary {
    border-color: #ced4da;
    color: #495057;
}

.btn-group .btn.btn-outline-secondary:hover {
    background-color: #e9ecef;
}

/* --- Validation Feedback --- */
.invalid-feedback {
    font-size: 12px;
    margin-top: 0.25rem;
}

/* --- Responsive Adjustments (Item 10) --- */
/* Bootstrap handles column stacking. We might need more specific rules later */
/* e.g., adjust chart container width/scrolling on smaller screens */

/* Chart Container - Add basic styles, will be refined (Item 9) */
#graph-output-container .plotly.graph-div {
    /* Add styles for the chart itself if needed */
}

/* Custom CSS for Pipeline Parallelism Schedule Visualizer */

/* Smooth transitions for all interactive elements */
* {
    transition: all 0.3s ease;
}

/* Enhanced card hover effects */
.card {
    border-radius: 12px !important;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12) !important;
}

/* Strategy card animations */
.strategy-card {
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.strategy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.strategy-card:hover::before {
    left: 100%;
}

.strategy-card.selected {
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

/* Enhanced button animations */
.btn-primary {
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:active::before {
    width: 300px;
    height: 300px;
}

/* Loading animation enhancement */
._dash-loading {
    position: relative;
}

._dash-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Tab animations */
.nav-tabs .nav-link {
    position: relative;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #667eea;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-tabs .nav-link:hover::after {
    width: 100%;
}

.nav-tabs .nav-link.active::after {
    width: 100%;
}

/* Metric card animations */
.metric-card {
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.15) !important;
}

/* Progress bar animations */
.progress {
    overflow: visible;
}

.progress-bar {
    position: relative;
    animation: progressAnimation 1s ease-out;
}

@keyframes progressAnimation {
    from {
        width: 0;
    }
}

/* Toast animations */
.toast {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Input focus effects */
.form-control:focus {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15) !important;
}

/* Badge pulse animation */
.badge {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Enhanced tooltip styling */
.tooltip {
    font-size: 0.875rem;
}

.tooltip-inner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 8px 12px;
    border-radius: 6px;
}

/* Graph container enhancements */
.graph-container {
    position: relative;
}

.graph-container::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, #667eea, #764ba2, #667eea);
    border-radius: 10px;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.graph-container:hover::before {
    opacity: 0.1;
}

/* Responsive improvements */
@media (max-width: 768px) {
    .main-header {
        padding: 1.5rem 0;
    }
    
    .main-header h1 {
        font-size: 1.75rem;
    }
    
    .strategy-card {
        margin-bottom: 0.75rem;
    }
    
    .metric-card {
        margin-bottom: 1rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    
    .card {
        background-color: #2a2a2a;
        color: #e0e0e0;
    }
    
    .form-control {
        background-color: #3a3a3a;
        border-color: #4a4a4a;
        color: #e0e0e0;
    }
    
    .form-control:focus {
        background-color: #3a3a3a;
        border-color: #667eea;
        color: #e0e0e0;
    }
}

/* Print styles */
@media print {
    .main-header {
        background: none !important;
        color: #000 !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    .btn {
        display: none !important;
    }
}

/* Pipeline Parallelism Schedule Visualizer - Custom CSS */

/* --- Base Typography & Colors --- */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: #f8f9fa;
    color: #212B36;
    font-size: 14px;
}

/* --- Header Section --- */
.main-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.main-header h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0;
}

.main-header .lead {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* --- Cards & Containers --- */
.card {
    border: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 24px;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.card-body {
    padding: 1.5rem;
}

/* --- Strategy Cards --- */
.strategy-card {
    cursor: pointer;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
    height: 100%;
    border-radius: 10px;
    background: white;
    position: relative;
    overflow: hidden;
}

.strategy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s ease;
}

.strategy-card:hover {
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.strategy-card:hover::before {
    left: 100%;
}

.strategy-card.selected {
    border-color: #667eea;
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.strategy-card i {
    font-size: 1.5rem;
    color: #667eea;
    margin-bottom: 0.5rem;
    display: block;
}

/* --- Section Titles --- */
.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-icon {
    color: #667eea;
}

/* --- Forms & Inputs --- */
.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
    display: block;
}

.form-control, .form-select {
    font-size: 14px;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    transform: translateY(-2px);
}

.input-group-text {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px 0 0 8px;
}

.form-text {
    font-size: 12px;
    color: #6c757d;
    margin-top: 0.25rem;
}

.invalid-feedback {
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* --- Buttons --- */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-light {
    background-color: #f8f9fa;
    border-color: #dee2e6;
    color: #495057;
}

.btn-light:hover {
    background-color: #e9ecef;
    border-color: #dee2e6;
    color: #495057;
}

/* --- Tabs --- */
.nav-tabs {
    border-bottom: 2px solid #e9ecef;
}

.nav-tabs .nav-link {
    color: #6c757d;
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: #667eea;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: #667eea;
    background-color: #f8f9fa;
}

.nav-tabs .nav-link:hover::after {
    width: 100%;
}

.nav-tabs .nav-link.active {
    color: #667eea;
    background-color: transparent;
    border-bottom: 3px solid #667eea;
}

.nav-tabs .nav-link.active::after {
    width: 100%;
}

/* --- Graphs & Visualizations --- */
.graph-container {
    background: white;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 1.5rem;
    position: relative;
    min-height: 400px; /* Ensure minimum height */
    width: 100%; /* Full width */
}

/* Ensure Plotly graphs are fully visible */
.graph-container .js-plotly-plot,
.graph-container .plot-container,
.graph-container .plotly {
    width: 100% !important;
    height: auto !important;
    min-height: 350px;
}

/* Fix for the main modebar groups */
.graph-container .modebar {
    position: absolute !important;
    top: 10px;
    right: 10px;
}

/* Ensure the SVG container is properly sized */
.graph-container .main-svg {
    overflow: visible !important;
}

/* Tab content container should have proper height */
#tab-content-container {
    min-height: 500px;
    width: 100%;
}

/* Individual tab content */
[id^="content-"] {
    width: 100%;
    min-height: 450px;
}

/* Ensure the graph output container has proper dimensions */
#graph-output-container {
    width: 100%;
    overflow-x: auto; /* Allow horizontal scroll if needed */
    overflow-y: visible;
}

/* Visualization Results card should expand to content */
.card:has(#graph-output-container) {
    overflow: visible;
}

.card-body:has(#graph-output-container) {
    overflow: visible;
    padding-bottom: 2rem; /* Extra padding at bottom */
}

/* --- Execution Summary --- */
.execution-summary {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.metric-card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.15);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
}

.metric-label {
    font-size: 0.875rem;
    color: #6c757d;
    margin-top: 0.25rem;
}

/* --- Alerts & Toasts --- */
.alert {
    border-radius: 8px;
    border: none;
}

.alert-info {
    background-color: #e7f3ff;
    color: #0c5460;
}

.alert-light {
    background-color: #f8f9fa;
    color: #495057;
}

.toast {
    min-width: 300px;
    border-radius: 8px;
    border: none;
    animation: slideIn 0.3s ease-out;
}

.toast-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* --- Badges --- */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 500;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* --- Progress Bars --- */
.progress {
    height: 10px;
    border-radius: 5px;
    background-color: #e9ecef;
    overflow: visible;
}

.progress-bar {
    border-radius: 5px;
    position: relative;
    animation: progressAnimation 1s ease-out;
}

@keyframes progressAnimation {
    from { width: 0; }
}

/* --- Loading Animation --- */
._dash-loading {
    position: relative;
}

._dash-loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Tooltips --- */
.tooltip {
    font-size: 0.875rem;
}

.tooltip-inner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 8px 12px;
    border-radius: 6px;
}

/* --- Utilities --- */
html {
    scroll-behavior: smooth;
}

.collapse {
    transition: height 0.35s ease;
}

/* --- Footer --- */
footer {
    background-color: #f8f9fa;
    margin-top: 3rem;
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .main-header {
        padding: 1.5rem 0;
    }
    
    .main-header h1 {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1rem;
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .main-header h1 {
        font-size: 1.5rem;
    }
    
    .strategy-card {
        margin-bottom: 0.75rem;
    }
    
    .metric-card {
        margin-bottom: 1rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

/* --- Dark Mode Support --- */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    
    .card {
        background-color: #2a2a2a;
        color: #e0e0e0;
    }
    
    .strategy-card {
        background-color: #2a2a2a;
        border-color: #3a3a3a;
    }
    
    .form-control, .form-select {
        background-color: #3a3a3a;
        border-color: #4a4a4a;
        color: #e0e0e0;
    }
    
    .form-control:focus {
        background-color: #3a3a3a;
        border-color: #667eea;
        color: #e0e0e0;
    }
    
    .input-group-text {
        background-color: #3a3a3a;
        border-color: #4a4a4a;
        color: #e0e0e0;
    }
    
    .nav-tabs .nav-link {
        color: #a0a0a0;
    }
    
    .nav-tabs .nav-link:hover {
        background-color: #2a2a2a;
    }
    
    .alert-info {
        background-color: #1e3a5f;
        color: #a0c4ff;
    }
    
    .alert-light {
        background-color: #2a2a2a;
        color: #e0e0e0;
    }
    
    footer {
        background-color: #2a2a2a;
    }
}

/* --- Print Styles --- */
@media print {
    .main-header {
        background: none !important;
        color: #000 !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    .btn, .toast-container {
        display: none !important;
    }
    
    .strategy-card {
        border: 1px solid #ddd !important;
    }
}

/* --- Layout Fixes for Graph Display --- */
/* Ensure the visualization column takes proper space */
.row > .col-lg-8 {
    flex: 0 0 auto;
    width: 66.66667%;
    max-width: none; /* Remove max-width constraint */
}

/* Ensure cards don't clip content */
.card {
    overflow: visible !important;
}

.card-body {
    overflow: visible !important;
}

/* Fix for tab container */
.tab-content {
    overflow: visible !important;
}

/* Ensure proper spacing for graph container */
.graph-container {
    margin: 0 -0.5rem; /* Negative margin to use full width */
    padding: 1rem 1.5rem; /* Compensate with padding */
}

/* Override any Bootstrap constraints */
.container-fluid {
    max-width: none !important;
}

/* Responsive adjustments for larger screens */
@media (min-width: 1200px) {
    .row > .col-lg-8 {
        width: 70%; /* Give more space to visualization on large screens */
    }
    
    .row > .col-lg-4 {
        width: 30%;
    }
}

/* Fix plotly's own responsive behavior */
.js-plotly-plot .plotly .main-svg {
    overflow: visible !important;
}

.js-plotly-plot .plotly .modebar-container {
    position: absolute;
    top: 0;
    right: 0;
}

/* Ensure the alert message doesn't interfere */
#welcome-message {
    margin-bottom: 0;
}

/* Final fixes for Plotly graph display */
.dash-graph {
    width: 100% !important;
    height: auto !important;
}

.js-plotly-plot {
    width: 100% !important;
    height: auto !important;
}

.plotly-graph-div {
    width: 100% !important;
    overflow: visible !important;
}

/* Ensure the graph container div inside dcc.Graph has proper dimensions */
._dash-graph-container {
    width: 100% !important;
    overflow: visible !important;
}

/* Fix for SVG container */
.svg-container {
    width: 100% !important;
    height: auto !important;
}

/* Ensure modebar doesn't interfere with layout */
.modebar-container {
    position: absolute !important;
    z-index: 1000;
}

/* Override any inline styles that might be constraining the graph */
div[style*="height: 400px"] {
    height: auto !important;
    min-height: 400px !important;
}

/* Ensure responsive behavior on window resize */
@media screen and (max-width: 1400px) {
    .row > .col-lg-8 {
        width: 100%;
        margin-bottom: 2rem;
    }
    
    .row > .col-lg-4 {
        width: 100%;
    }
}