/*
 * NPH ML/Neuralnet Predictor - Design System & Modern Stylesheet
 * Medical Neurosurgical Tech Aesthetic with Dark/Light Themes, Glassmorphism & High Usability
 * Conceived, designed and developed by Dr G Narenthiran MB ChB BSc(MedSci)(Hons) FEBNS FRCS(SN)
 */

:root {
    --bg-base: #0a0f1d;
    --bg-surface: #111827;
    --bg-surface-elevated: #1e293b;
    --bg-surface-subtle: #0f172a;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(56, 189, 248, 0.4);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #8b9ab0;  /* >= 4.5:1 on cards (WCAG AA) */
    
    --accent-cyan: #06b6d4;
    --accent-blue: #38bdf8;
    --accent-indigo: #6366f1;
    --accent-purple: #c084fc;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-rose: #fb7185;
    /* Text on tinted tags and pills (>= 4.5:1 on their tinted backgrounds, WCAG AA) */
    --tag-purple: #d8b4fe;
    --tag-emerald: #34d399;
    --tag-muted: #a3b1c6;
    
    --glow-cyan: 0 0 20px rgba(6, 182, 212, 0.25);
    --glow-indigo: 0 0 25px rgba(99, 102, 241, 0.3);
    
    --card-radius: 16px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-elevated: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    /* Used throughout the markup but previously undefined (borders/transitions silently dropped) */
    --radius-xs: 4px;
    --border-subtle: rgba(255, 255, 255, 0.05);
    /* Native form controls and scrollbars follow the theme */
    color-scheme: dark;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-base: #f8fafc;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #f1f5f9;
    --bg-surface-subtle: #f8fafc;
    --border-color: rgba(0, 0, 0, 0.08);
    --border-hover: rgba(14, 165, 233, 0.5);
    --border-subtle: rgba(0, 0, 0, 0.06);
    color-scheme: light;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #586679;  /* >= 4.5:1 on light surfaces (WCAG AA) */
    /* Darker accents for light backgrounds (the bright dark-mode accents fall below 3:1 here) */
    /* Dark enough for >= 4.5:1 on white and on the pale tints used behind tags, warnings and cells */
    --accent-cyan: #155e75;
    --accent-blue: #075985;
    --accent-indigo: #3730a3;
    --accent-purple: #6b21a8;
    --accent-emerald: #065f46;
    --accent-amber: #92400e;
    --accent-rose: #9f1239;
    --tag-purple: #6b21a8;
    --tag-emerald: #065f46;
    --tag-muted: #475569;
    
    --glow-cyan: 0 4px 15px rgba(6, 182, 212, 0.15);
    --glow-indigo: 0 4px 20px rgba(99, 102, 241, 0.15);
    
    --shadow-soft: 0 4px 20px -2px rgba(0, 0, 0, 0.06);
    --shadow-elevated: 0 12px 30px -5px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 24px 28px;
    line-height: 1.5;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

.app-wrapper {
    max-width: 1520px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ==========================================================================
   APP HEADER
   ========================================================================== */
.app-header {
    background: var(--bg-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 20px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    box-shadow: var(--shadow-soft);
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.brand-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 24px;
    box-shadow: var(--glow-cyan);
    flex-shrink: 0;
}

.brand-details h1 {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue) 40%, var(--accent-indigo));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-details .subtitle {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-top: 2px;
}

.brand-details .attribution {
    font-size: 11.5px;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 3px;
}

.brand-details .attribution strong {
    color: var(--accent-cyan);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

/* Stepper Navigation */
.stepper-nav {
    display: flex;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 8px 12px;
    gap: 6px;
    flex-wrap: wrap; /* every tab stays visible (the last ones were hidden off-screen at common widths) */
    box-shadow: var(--shadow-soft);
}

.step-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.step-tab:hover {
    color: var(--text-primary);
    background: var(--bg-surface-elevated);
}

.step-tab.active {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(99, 102, 241, 0.2));
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.35);
    box-shadow: var(--glow-cyan);
}

.step-tab .badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-elevated);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 700;
}

.step-tab.active .badge {
    background: var(--accent-cyan);
    color: #ffffff;
}

.step-tab.completed .badge {
    background: var(--accent-emerald);
    color: #ffffff;
}

/* Common UI Elements */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:disabled, button:disabled {
    opacity: 0.55;
    cursor: not-allowed !important;
    box-shadow: none !important;
    transform: none !important;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-indigo));
    color: #ffffff;
    box-shadow: var(--glow-cyan);
}

.btn-primary:hover {
    opacity: 0.95;
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-hover);
    border-color: var(--accent-cyan);
}

.btn-outline {
    background: transparent;
    color: var(--accent-cyan);
    border-color: rgba(6, 182, 212, 0.4);
}

.btn-outline:hover {
    background: rgba(6, 182, 212, 0.1);
}

.btn-emerald {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #ffffff;
}

.btn-emerald:hover {
    opacity: 0.95;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

/* Extra-small buttons (e.g. the monitors' Force Stop) - previously undefined */
.btn-xs {
    padding: 4px 8px;
    font-size: 11px;
    border-radius: var(--radius-sm);
}

.btn-icon {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.btn-icon:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Card Containers */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 24px;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: relative;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 14px;
}

.card-title-group h2 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title-group p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 3px;
}

/* Drop Zone */
.upload-dropzone {
    border: 2px dashed rgba(56, 189, 248, 0.35);
    background: rgba(56, 189, 248, 0.02);
    border-radius: var(--radius-lg);
    padding: 44px 28px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.upload-dropzone:hover, .upload-dropzone.drag-active {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.08);
    box-shadow: var(--glow-cyan);
    transform: scale(1.005);
}

.upload-icon-circle {
    width: 68px;
    height: 68px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(99, 102, 241, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--accent-cyan);
}

/* Quick Dataset Pills */
.dataset-pills {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.dataset-pill {
    padding: 8px 14px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition-fast);
}

.dataset-pill:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
    background: rgba(6, 182, 212, 0.1);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.stat-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.stat-value {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
}

.stat-desc {
    font-size: 11.5px;
    color: var(--text-secondary);
}

/* Table Design */
.table-container {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-surface-subtle);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

.data-table th {
    background: var(--bg-surface-elevated);
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    white-space: nowrap;
}

.data-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Badges & Pills */
.pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.pill-meta { background: rgba(148, 163, 184, 0.15); color: #94a3b8; border: 1px solid rgba(148, 163, 184, 0.3); }
.pill-target { background: rgba(168, 85, 247, 0.2); color: var(--tag-purple); border: 1px solid rgba(168, 85, 247, 0.4); }
.pill-feature { background: rgba(6, 182, 212, 0.15); color: #22d3ee; border: 1px solid rgba(6, 182, 212, 0.35); }

.pill-continuous { background: rgba(56, 189, 248, 0.15); color: #38bdf8; }
.pill-ordinal { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.pill-nominal { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.pill-missing { background: rgba(244, 63, 94, 0.2); color: #fda4af; }

/* Select / Input Controls */
.control-select, .control-input {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 12.5px;
    font-weight: 500;
    outline: none;
    transition: border-color var(--transition-fast);
}

.control-select:focus, .control-input:focus {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 2px rgba(6, 182, 212, 0.2);
}

/* Step Views */
.step-content {
    display: none;
    flex-direction: column;
    gap: 20px;
    animation: fadeIn 0.3s ease-in-out;
}

.step-content.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Configuration Grid for Variables */
.var-config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.var-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: all var(--transition-fast);
}

.var-card:hover {
    border-color: rgba(56, 189, 248, 0.3);
}

.var-card.is-target {
    border-color: rgba(168, 85, 247, 0.5);
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.05), var(--bg-surface-elevated));
}

.var-card.is-meta {
    border-style: dashed; /* excluded: shown by the dashed border and the struck-through name, text kept readable */
}

.var-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.var-name {
    font-weight: 700;
    font-size: 14px;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.var-row-control {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.var-row-control label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Imputation Table */
.impute-action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 18px;
}

/* Model Selection Grid */
.model-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.model-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: all var(--transition-fast);
}

.model-card:hover {
    border-color: var(--accent-cyan);
    transform: translateY(-2px);
}

.model-card.selected {
    border-color: var(--accent-cyan);
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.12), rgba(99, 102, 241, 0.15));
    box-shadow: var(--glow-cyan);
}

.model-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.model-card-title {
    font-weight: 700;
    font-size: 15px;
    color: var(--text-primary);
}

.model-card-desc {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Protocol Selection Cards */
.protocol-card {
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--bg-surface-subtle);
    padding: 14px 16px;
    border-radius: var(--radius-md);
    display: flex;
    gap: 12px;
    align-items: flex-start;
    transition: var(--transition);
}

.protocol-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
}

.protocol-card.selected-a {
    border: 2px solid var(--accent-cyan) !important;
    background: rgba(6, 182, 212, 0.08) !important;
    box-shadow: 0 4px 12px rgba(6, 182, 212, 0.12);
}

.protocol-card.selected-b {
    border: 2px solid var(--accent-purple) !important;
    background: rgba(168, 85, 247, 0.08) !important;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.12);
}

/* Scope Pills for Single vs Multi vs All Models */
.scope-pill {
    cursor: pointer;
    border: 1px solid var(--border-color);
    background: var(--bg-surface-subtle);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all var(--transition-fast);
}

.scope-pill:hover {
    border-color: var(--accent-cyan);
    background: var(--bg-surface-elevated);
}

.scope-pill.active-single {
    border: 2px solid var(--accent-cyan) !important;
    background: rgba(6, 182, 212, 0.08) !important;
}

.scope-pill.active-multi {
    border: 2px solid var(--accent-purple) !important;
    background: rgba(168, 85, 247, 0.08) !important;
}

.scope-pill.active-all {
    border: 2px solid var(--accent-emerald) !important;
    background: rgba(16, 185, 129, 0.08) !important;
}

/* Leaderboard Table */
.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.leaderboard-table th {
    background: var(--bg-surface-subtle);
    padding: 12px 14px;
    text-align: left;
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border-color);
}

.leaderboard-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-subtle);
    color: var(--text-primary);
}

.leaderboard-table tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.leaderboard-table tr.top-performer td {
    background: rgba(16, 185, 129, 0.04);
}

/* Multi-Model Confusion Matrix Grid */
.multi-cm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 20px;
    margin-top: 14px;
}

.multi-cm-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: all var(--transition-fast);
}

.multi-cm-card:hover {
    border-color: rgba(56, 189, 248, 0.4);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* app.js renders the class "active-deployed"; the old name is kept harmlessly */
.multi-cm-card.active-deployed,
.multi-cm-card.is-active-deployed {
    border: 2px solid var(--accent-cyan);
    box-shadow: 0 0 16px rgba(6, 182, 212, 0.18);
}

/* Hyperparameters Panel */
.hyperparam-box {
    background: var(--bg-surface-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    align-items: flex-end;
}

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

.param-group label,
.param-group .group-label {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Metrics and Results Dashboard */
.results-dashboard {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.metrics-summary-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
}

.metric-pill-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 6px;
}

.metric-pill-card .m-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.metric-pill-card .m-val {
    font-size: 26px;
    font-weight: 800;
    color: var(--accent-cyan);
}

/* Confusion Matrix */
.cm-table {
    border-collapse: collapse;
    margin: 0 auto;
}

.cm-table th, .cm-table td {
    padding: 14px 20px;
    text-align: center;
    border: 1px solid var(--border-color);
    font-size: 13px;
    font-weight: 600;
}

.cm-cell-hit {
    background: rgba(16, 185, 129, 0.25);
    color: #34d399;
}

.cm-cell-miss {
    background: rgba(244, 63, 94, 0.15);
    color: #fb7185;
}

/* Pipeline 2×2 cells (TN/TP correct, FP/FN errors) - previously unstyled */
.cm-cell-tn,
.cm-cell-tp {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-emerald);
}

.cm-cell-fp,
.cm-cell-fn {
    background: rgba(244, 63, 94, 0.12);
    color: var(--accent-rose);
}

/* Top-ranked badge on model cards - previously unstyled */
.champion-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 10.5px;
    font-weight: 700;
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
    border: 1px solid rgba(245, 158, 11, 0.4);
}

/* Dynamic Prediction Form */
.predict-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
}

.form-field {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-field label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
}

.form-field .field-hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* Prediction Result Card */
.prediction-banner {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.15), rgba(99, 102, 241, 0.2));
    border: 1px solid rgba(6, 182, 212, 0.4);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    box-shadow: var(--glow-cyan);
}

.banner-left h3 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.banner-left .pred-outcome-val {
    font-size: 32px;
    font-weight: 800;
    color: #ffffff;
    margin-top: 4px;
}

.banner-confidence {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.prob-meter-bar {
    width: 200px;
    height: 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.prob-meter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald));
    border-radius: var(--radius-full);
    transition: width 0.4s ease;
}

/* Footer Attribution */
.app-footer {
    border-top: 1px solid var(--border-color);
    padding: 24px 0 12px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 10px;
    font-size: 12.5px;
    color: var(--text-secondary);
}

.app-footer strong {
    color: var(--accent-cyan);
}

.app-footer .disclaimer {
    font-size: 11px;
    color: var(--text-muted);
    max-width: 820px;
    line-height: 1.5;
}

/* Utility classes */
.flex-row-center {
    display: flex;
    align-items: center;
    gap: 10px;
}

.chart-container-box {
    position: relative;
    width: 100%;
    height: 280px;
    background: var(--bg-surface-subtle);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px;
}

@media (max-width: 900px) {
    body {
        padding: 14px;
    }
    .app-header {
        padding: 16px;
    }
    .stepper-nav {
        width: 100%;
    }
}

/* ==========================================================================
   REPRODUCIBILITY SEED STYLES
   ========================================================================== */
.seed-input-wrap {
    display: flex;
    gap: 6px;
    align-items: center;
}

.seed-input-wrap .control-input {
    flex: 1;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
    letter-spacing: 0.5px;
}

.btn-roll-seed {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 6px 10px;
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-roll-seed:hover {
    border-color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.15);
    transform: rotate(25deg);
}

.seed-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.35;
}

/* Model Card Seed Box & Toggle Styles */
.model-seed-box {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 6px;
    cursor: default;
}

.model-seed-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.model-seed-title {
    font-size: 11.5px;
    font-weight: 700;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.seed-mode-selector {
    display: inline-flex;
    gap: 4px;
    background: var(--bg-surface-subtle);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
}

.seed-mode-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    padding: 3px 8px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: var(--transition-fast);
}

.seed-mode-pill:hover {
    color: var(--text-primary);
}

.seed-mode-pill:has(input:checked),
.seed-mode-pill.active {
    background: rgba(6, 182, 212, 0.16);
    color: var(--accent-cyan);
    font-weight: 700;
}

.seed-mode-pill input[type="radio"] {
    accent-color: var(--accent-cyan);
    cursor: pointer;
    margin: 0;
    width: 13px;
    height: 13px;
}

.custom-seed-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 4px;
}

.custom-seed-row .seed-input-wrap .control-input {
    font-size: 12px;
    padding: 5px 8px;
    height: 32px;
}

.custom-seed-row .btn-roll-seed {
    padding: 5px 8px;
    height: 32px;
    font-size: 12px;
}

.seed-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: var(--radius-full);
    font-size: 11.5px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-weight: 600;
    background: rgba(168, 85, 247, 0.12);
    color: var(--accent-purple);
    border: 1px solid rgba(168, 85, 247, 0.3);
    cursor: pointer;
    transition: var(--transition-fast);
}

.seed-pill:hover {
    background: rgba(168, 85, 247, 0.25);
    border-color: var(--accent-purple);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(168, 85, 247, 0.25);
}

.seed-pill .copy-icon {
    font-size: 10px;
    opacity: 0.75;
}

.cm-seed-card-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    background: var(--bg-surface-subtle);
    border: 1px solid var(--border-color);
    font-size: 11px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.cm-seed-card-badge:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.08);
}

.seed-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--accent-emerald);
    color: var(--text-primary);
    padding: 10px 16px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-elevated);
    font-size: 12.5px;
    font-weight: 600;
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: fadeInSlide 0.25s ease-out;
}

/* ==========================================================================
   7-STEP CLINICAL ML PIPELINE STYLES
   ========================================================================== */
.pipeline-subnav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 10px 14px;
    background: var(--bg-surface-subtle);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.pipeline-step-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition-fast);
}

.pipeline-step-pill:hover {
    color: var(--text-primary);
    border-color: var(--accent-cyan);
}

.pipeline-step-pill.active {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(6, 182, 212, 0.2));
    border-color: var(--accent-emerald);
    color: var(--accent-emerald);
    box-shadow: 0 0 12px rgba(16, 185, 129, 0.25);
}

.pipeline-step-pill.completed {
    border-color: rgba(16, 185, 129, 0.4);
    color: var(--text-primary);
}

.pipeline-step-pill.completed .sub-badge {
    background: var(--accent-emerald);
    color: #ffffff;
}

.pipeline-step-pill .sub-badge {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--bg-surface-elevated);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
}

.pipeline-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-soft);
}

.pipeline-step-panel {
    display: none;
    animation: fadeIn 0.25s ease-out;
}

.pipeline-step-panel.active {
    display: block;
}

.pipeline-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 18px;
    font-size: 13px;
    line-height: 1.5;
}

.pipeline-alert-info {
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.3);
    color: var(--text-primary);
}

.pipeline-alert-success {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--text-primary);
}

.pipeline-alert-warning {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--text-primary);
}

.pipeline-alert-danger {
    background: rgba(244, 63, 94, 0.08);
    border: 1px solid rgba(244, 63, 94, 0.3);
    color: var(--text-primary);
}

.corr-pair-card {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    transition: var(--transition-fast);
}

.corr-pair-card.high-corr {
    border-color: rgba(244, 63, 94, 0.4);
    background: rgba(244, 63, 94, 0.04);
}

.corr-pair-card.dropped {
    opacity: 0.55;
    border-style: dashed;
}

.vif-badge-danger {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent-rose);
    border: 1px solid rgba(244, 63, 94, 0.3);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 11px;
}

.vif-badge-ok {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-emerald);
    border: 1px solid rgba(16, 185, 129, 0.3);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 11px;
}

.rf-importance-bar-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 20px 0;
}

.rf-importance-row {
    display: grid;
    grid-template-columns: 180px 1fr 70px 100px 130px;
    align-items: center;
    gap: 12px;
    font-size: 12.5px;
}

.rf-meter-track {
    background: var(--bg-surface-elevated);
    height: 18px;
    border-radius: 9px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
}

.rf-meter-fill {
    height: 100%;
    border-radius: 9px;
    transition: width 0.5s ease-out;
}

.rf-meter-fill.top-tier {
    background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));
}

.rf-meter-fill.bottom-tier {
    background: linear-gradient(90deg, var(--accent-amber), var(--accent-rose));
}

.cutoff-line-notice {
    padding: 10px 14px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px dashed var(--accent-amber);
    border-radius: var(--radius-md);
    margin: 14px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-amber);
}

/* ==========================================================================
   EXECUTION WATCHDOG & LOOP / STALL DETECTOR WIDGET
   ========================================================================== */
.execution-monitor-card {
    background: var(--bg-surface-elevated);
    border: 1px solid rgba(6, 182, 212, 0.35);
    border-radius: var(--card-radius);
    padding: 16px 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    margin-bottom: 20px;
    animation: fadeIn 0.2s ease-out;
}

.monitor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.monitor-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.monitor-status-badge.running {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-emerald);
    border: 1px solid rgba(16, 185, 129, 0.4);
}

.monitor-status-badge.warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
    border: 1px solid rgba(245, 158, 11, 0.4);
}

.monitor-status-badge.stalled {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent-rose);
    border: 1px solid rgba(244, 63, 94, 0.4);
}

.monitor-status-badge.completed {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-cyan);
    border: 1px solid rgba(6, 182, 212, 0.4);
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
    display: inline-block;
    box-shadow: 0 0 8px currentColor;
    animation: pulseDot 1.4s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.35; transform: scale(1.3); }
}

.monitor-timer {
    font-family: 'SF Mono', Monaco, Inconsolata, monospace;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-cyan);
    background: var(--bg-surface);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.monitor-loop-status {
    font-size: 11.5px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-surface);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.monitor-loop-status.loop-detected {
    color: var(--accent-rose);
    border-color: rgba(244, 63, 94, 0.5);
    background: rgba(244, 63, 94, 0.1);
    font-weight: 700;
    animation: shakeAlert 0.4s ease-in-out;
}

@keyframes shakeAlert {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-4px); }
    40%, 80% { transform: translateX(4px); }
}

.monitor-task-name {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-primary);
}

.monitor-step-counter {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-emerald);
}

.monitor-progress-bar-wrap {
    background: var(--bg-surface);
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
    border: 1px solid var(--border-color);
}

.monitor-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-emerald));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.monitor-subtext {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 11px;
    color: var(--text-muted);
}



/* Analysis settings bar (save / restore choices) */
.settings-bar {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    margin-bottom: 20px;
}
.settings-bar-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.settings-bar-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 12.5px;
    color: var(--text-secondary);
    min-width: 0;
}
.settings-bar-text strong {
    color: var(--text-primary);
    font-size: 13.5px;
}
.settings-bar-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.settings-banner-box {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--accent-cyan);
    background: rgba(6, 182, 212, 0.08);
    font-size: 12.5px;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.settings-banner-box .settings-banner-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.settings-banner-box .settings-warn {
    color: var(--accent-amber);
}

/* Step 2: include / exclude tick boxes */
.var-include-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px 16px;
    padding: 10px 14px;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-surface-elevated);
    font-size: 13px;
    color: var(--text-secondary);
}
.var-include-bar-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.var-include-summary { display: block; margin-top: 2px; font-size: 12px; color: var(--text-muted); }
.var-include {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    cursor: pointer;
}
.var-include input { width: 16px; height: 16px; flex-shrink: 0; accent-color: var(--accent-cyan, #38bdf8); cursor: pointer; }
.var-include input:disabled { cursor: not-allowed; }
.var-card.is-meta .var-name { text-decoration: line-through; color: var(--text-secondary); }

/* Data Ingestion preview: fixed-height box that scrolls both ways, with a sticky header */
.table-container.preview-scroll {
    max-height: 420px;
    overflow: auto;
}
.preview-scroll .data-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
}
.preview-scroll:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 2px; }

/* Always-visible scrollbars on scrollable tables (macOS otherwise hides them until you scroll) */
.table-container::-webkit-scrollbar { width: 12px; height: 12px; }
.table-container::-webkit-scrollbar-track { background: var(--bg-surface-elevated); }
.table-container::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 6px;
    border: 3px solid var(--bg-surface-elevated);
}
.table-container::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }
.table-container::-webkit-scrollbar-corner { background: var(--bg-surface-elevated); }

/* Step 6: reinstate bottom-30% features */
.rf-importance-action { text-align: right; }
.rf-importance-action .btn { white-space: nowrap; }
.rf-importance-summary { margin-top: 14px; font-size: 12.5px; color: var(--text-secondary); }

/* 7-step pipeline: "Too good to be true?" panel */
.too-good-box {
    margin-top: 12px;
    padding: 12px 16px;
    border: 1px solid rgba(56, 189, 248, 0.4);
    border-left: 4px solid var(--accent-cyan);
    border-radius: var(--radius-sm);
    background: rgba(56, 189, 248, 0.06);
    font-size: 12.5px;
    line-height: 1.55;
    color: var(--text-secondary);
}
.too-good-box .too-good-title { font-weight: 700; font-size: 13.5px; color: var(--text-primary); margin-bottom: 6px; }
.too-good-box p { margin: 6px 0 4px; }
.too-good-box ul { margin: 0 0 4px; padding-left: 20px; }
.too-good-box li { margin: 3px 0; }
.too-good-box strong { color: var(--text-primary); }

/* Step 4: automatic tuning */
.autotune-box {
    margin-top: 16px;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-surface-elevated);
}
.autotune-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; }
.autotune-label { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: 13.5px; color: var(--text-primary); cursor: pointer; }
.autotune-label input { width: 16px; height: 16px; accent-color: var(--accent-cyan); }
.autotune-folds-label { font-size: 12.5px; color: var(--text-secondary); display: inline-flex; align-items: center; gap: 6px; }
.autotune-hint { margin: 8px 0 0; font-size: 12px; line-height: 1.55; color: var(--text-muted); }
.mi-file-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.tune-report {
    margin: 12px 0;
    padding: 12px 16px;
    border: 1px solid rgba(56, 189, 248, 0.35);
    border-left: 4px solid var(--accent-cyan);
    border-radius: var(--radius-sm);
    background: rgba(56, 189, 248, 0.05);
    font-size: 12.5px;
    color: var(--text-secondary);
}
.tune-title { font-weight: 700; font-size: 14px; color: var(--text-primary); margin-bottom: 4px; }
.tune-muted { color: var(--text-muted); font-size: 12px; margin: 2px 0; }
.tune-model { padding: 10px 0; border-top: 1px solid var(--border-color); }
.tune-model-head { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; color: var(--text-primary); }
.tune-model strong { color: var(--text-primary); }
.tune-sd { color: var(--text-muted); font-size: 11.5px; }
.tune-model details { margin-top: 6px; }
.tune-model summary { cursor: pointer; color: var(--accent-cyan); font-size: 12px; }
.tune-table { margin-top: 6px; font-size: 12px; }
.tune-table th, .tune-table td { padding: 6px 10px; }
.tune-table tr.tune-best td { background: rgba(16, 185, 129, 0.08); }
.tune-warn { margin: 6px 0; padding: 8px 10px; border-radius: var(--radius-sm); background: rgba(245, 158, 11, 0.12); color: var(--accent-amber); font-size: 12.5px; }

/* Pipeline vs baseline comparison: plain-language guide and cautions */
.cmp-meaning { font-weight: 400; font-size: 11.5px; color: var(--text-muted); margin-top: 2px; white-space: normal; max-width: 340px; line-height: 1.45; }
.cmp-table td { white-space: normal; vertical-align: top; }
.cmp-guide, .cmp-cautions { margin: 12px 0; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 12.5px; line-height: 1.55; color: var(--text-secondary); }
.cmp-guide { border: 1px solid rgba(56, 189, 248, 0.35); border-left: 4px solid var(--accent-cyan); background: rgba(56, 189, 248, 0.05); }
.cmp-cautions { border: 1px solid rgba(245, 158, 11, 0.4); border-left: 4px solid var(--accent-amber); background: rgba(245, 158, 11, 0.06); }
.cmp-guide-title, .cmp-cautions-title { font-weight: 700; font-size: 13.5px; color: var(--text-primary); margin-bottom: 4px; }
.cmp-guide ul, .cmp-cautions ul { margin: 0; padding-left: 20px; }
.cmp-guide li, .cmp-cautions li { margin: 3px 0; }
.cmp-guide strong, .cmp-cautions strong { color: var(--text-primary); }

/* "Comparison is underway" overlay (blocks other buttons during Train Standard Baseline & Compare) */
.comparison-overlay {
    position: fixed;
    inset: 0;
    z-index: 200000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
    background: rgba(2, 6, 23, 0.72);
    backdrop-filter: blur(2px);
}
.comparison-overlay-card {
    max-width: 520px;
    width: 100%;
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(16, 185, 129, 0.5);
    background: var(--bg-surface-elevated);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
    text-align: center;
    color: var(--text-primary);
}
.comparison-overlay-title { font-size: 18px; font-weight: 700; margin: 12px 0 8px; }
.comparison-overlay-text { font-size: 13px; line-height: 1.55; color: var(--text-secondary); margin: 0 0 12px; }
.comparison-overlay-progress { font-size: 12px; color: var(--accent-cyan); min-height: 18px; margin-bottom: 14px; word-break: break-word; }
.comparison-overlay-spinner {
    width: 36px; height: 36px; margin: 0 auto;
    border: 3px solid rgba(16, 185, 129, 0.25);
    border-top-color: var(--accent-emerald);
    border-radius: 50%;
    animation: comparison-spin 0.9s linear infinite;
}
@keyframes comparison-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .comparison-overlay-spinner { animation: none; } }
body.comparison-running { overflow: hidden; }
.cmp-baseline-note {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 14px;
    margin-bottom: 12px; padding: 10px 14px; border-radius: var(--radius-sm);
    border: 1px solid var(--border-color); background: var(--bg-surface-subtle);
    font-size: 12.5px; color: var(--text-secondary);
}

/* Model selection mode (cross-validation vs Testing set) */
.selection-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 16px; font-size: 13px; }
.selection-label { font-weight: 600; color: var(--text-primary); }
.selection-option { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; color: var(--text-secondary); }
.selection-option input { accent-color: var(--accent-cyan); }
.selection-tag { font-size: 10.5px; font-weight: 700; padding: 1px 7px; border-radius: 999px; background: rgba(16, 185, 129, 0.15); color: var(--tag-emerald); }
.selection-tag-muted { background: rgba(100, 116, 139, 0.15); color: var(--tag-muted); }

/* Train/test split method (random, by patient, by date) */
.split-method-box { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border-color); }
.split-method-label { display: block; font-size: 12.5px; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.split-method-select { max-width: 560px; }
.split-col-wrap { margin-top: 8px; display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-secondary); max-width: 360px; }
.split-method-hint { margin: 8px 0 0; font-size: 11.5px; line-height: 1.5; color: var(--text-muted); }
.threshold-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border-color); }

/* Calibration & decision-threshold panel */
.cal-panel { margin: 16px 0 24px; padding: 14px 16px; border: 1px solid var(--border-color); border-radius: var(--radius-md); background: var(--bg-surface-elevated); font-size: 12.5px; color: var(--text-secondary); }
.cal-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 14px; margin-bottom: 4px; }
.cal-grid { display: grid; grid-template-columns: minmax(200px, 260px) 1fr; gap: 16px; align-items: start; margin-top: 8px; }
@media (max-width: 640px) { .cal-grid { grid-template-columns: 1fr; } }
.cal-stats > div { margin: 3px 0; }
.cal-stats strong, .cal-thr strong { color: var(--text-primary); }
.cal-thr { margin-top: 12px; }
.thr-table { margin: 6px 0; font-size: 12px; }
.thr-table th, .thr-table td { padding: 5px 10px; }
.thr-table tr.thr-current td { background: rgba(56, 189, 248, 0.10); font-weight: 700; }

/* 95% confidence intervals under metric values */
.ci-text { font-size: 10px; font-weight: 400; color: var(--text-muted); white-space: nowrap; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 4px 12px; font-size: 11px; color: var(--text-secondary); margin-top: 4px; }
.chart-legend i, .legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }

/* Explainability */
.perm-list { display: flex; flex-direction: column; gap: 4px; margin-top: 6px; }
.perm-row { display: grid; grid-template-columns: minmax(120px, 220px) 1fr 120px; gap: 10px; align-items: center; font-size: 12px; }
.perm-name { color: var(--text-primary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.perm-track { height: 10px; background: var(--bg-surface-subtle); border-radius: 5px; overflow: hidden; }
.perm-bar { display: block; height: 100%; background: var(--accent-cyan); border-radius: 5px; }
.perm-bar.neg { background: var(--text-muted); }
.perm-val { text-align: right; color: var(--text-secondary); }
.explain-box { margin-top: 10px; padding: 10px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border-color); background: var(--bg-surface-subtle); font-size: 12.5px; color: var(--text-secondary); text-align: left; }
.explain-box ul { margin: 6px 0; padding-left: 18px; }
.explain-box li { margin: 3px 0; }
.ex-up { color: var(--accent-rose); }
.ex-down { color: var(--accent-emerald); }
.research-use-note { margin: 0 0 14px; padding: 9px 12px; border-radius: var(--radius-sm); border: 1px solid rgba(245, 158, 11, 0.45); background: rgba(245, 158, 11, 0.08); font-size: 12.5px; color: var(--text-secondary); }
.research-use-note strong { color: var(--text-primary); }
.settings-bar-sep { display: inline-block; width: 1px; height: 22px; background: var(--border-color); margin: 0 4px; vertical-align: middle; }

/* Survival analysis */
.surv-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.surv-predictors { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 6px 0 4px; font-size: 12.5px; color: var(--text-secondary); }
.surv-pred { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }


/* Accessibility: visible keyboard focus and a skip link */
:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 2px; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 100000; padding: 8px 14px; border-radius: var(--radius-sm); background: var(--bg-surface-elevated); color: var(--text-primary); border: 2px solid var(--accent-cyan); }
.skip-link:focus { left: 8px; }

/* Quick (one-at-a-time) explanation, folded under the Shapley explanation */
.explain-quick { margin-top: 8px; }
.explain-quick summary { cursor: pointer; font-size: 12px; color: var(--text-secondary); }
.explain-quick ul { margin-top: 6px; }

/* Subgroup (fairness) panel */
.subgroup-flag td { background: rgba(245, 158, 11, 0.12); }
.subgroup-small td { color: var(--text-muted); }

/* Hover read-out points on the SVG charts */
.chart-hover { cursor: crosshair; }
.chart-hover:hover { fill: currentColor; fill-opacity: 0.35; }

/* Light theme: tags, pills and confusion-matrix cells that use bright dark-theme colours (WCAG AA contrast) */
[data-theme="light"] .pill-meta { color: #475569; }
[data-theme="light"] .pill-feature { color: var(--accent-cyan); }
[data-theme="light"] .pill-continuous { color: var(--accent-blue); }
[data-theme="light"] .pill-ordinal { color: var(--accent-amber); }
[data-theme="light"] .pill-nominal { color: var(--accent-emerald); }
[data-theme="light"] .pill-missing { color: var(--accent-rose); }
[data-theme="light"] .cm-cell-hit { color: var(--accent-emerald); }
[data-theme="light"] .cm-cell-miss { color: var(--accent-rose); }
.budget-ok strong { color: var(--accent-emerald); }
.budget-warn strong { color: var(--accent-amber, #b45309); }
.budget-bad strong { color: var(--accent-rose, #dc2626); }
.budget-table td, .budget-table th { white-space: normal; vertical-align: top; }

/* Start page: choose the task first */
.task-chooser { display: flex; flex-wrap: wrap; gap: 10px; align-items: stretch; margin-bottom: 16px; }
.task-chooser-label { width: 100%; font-size: 13px; font-weight: 700; color: var(--text-secondary); }
.task-choice { flex: 1 1 220px; display: flex; flex-direction: column; gap: 4px; text-align: left; padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-color); background: var(--bg-surface); color: var(--text-primary); cursor: pointer; font: inherit; }
.task-choice span { font-size: 12px; color: var(--text-secondary); }
.task-choice:hover, .task-choice:focus-visible { border-color: var(--accent-cyan); }

/* Persistent analysis summary under the step tabs */
.analysis-summary { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: baseline; margin: 10px 0 0; padding: 8px 14px; border: 1px solid var(--border-color); border-radius: var(--radius-sm); background: var(--bg-surface); font-size: 12px; color: var(--text-secondary); }
.analysis-summary[hidden] { display: none; }
.analysis-summary-title { font-weight: 700; color: var(--text-primary); text-transform: uppercase; letter-spacing: 0.04em; font-size: 11px; }
.analysis-summary-item .k { color: var(--text-muted); }

/* Plain-language interpretation of the active model */
.interp-list { margin: 8px 0 0; display: grid; grid-template-columns: minmax(140px, 220px) 1fr; gap: 6px 14px; font-size: 13px; }
.interp-list dt { font-weight: 700; color: var(--text-primary); }
.interp-list dd { margin: 0; color: var(--text-secondary); line-height: 1.5; }
@media (max-width: 640px) { .interp-list { grid-template-columns: 1fr; } .interp-list dd { margin-bottom: 6px; } }

.mice-diag-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; margin-top: 8px; }

/* Interface levels: Beginner hides intermediate and advanced settings, Intermediate hides advanced ones
   (hidden settings are reset to their recommended defaults when hidden, see main.js) */
body[data-ui-level="beginner"] [data-level="intermediate"],
body[data-ui-level="beginner"] [data-level="advanced"],
body[data-ui-level="intermediate"] [data-level="advanced"],
body[data-ui-level="beginner"] .hyperparam-box,
body[data-ui-level="intermediate"] .hyperparam-box { display: none !important; }
.ui-level-label { float: right; font-weight: 600; font-size: 12.5px; color: var(--text-secondary); display: inline-flex; gap: 6px; align-items: center; }
.ui-level-note { display: none; }
body[data-ui-level="beginner"] .ui-level-note, body[data-ui-level="intermediate"] .ui-level-note { display: block; }

/* Time-to-event outcome: Step 4 fits a Cox model, so the model choice and yes/no settings are hidden */
.survival-step4-note { display: none; }
body[data-outcome="survival"] .survival-step4-note { display: block; }
body[data-outcome="survival"] #step-4-content .chart-container-box,
body[data-outcome="survival"] #results-dashboard,
body[data-outcome="survival"] .model-cards-grid,
body[data-outcome="survival"] #model-sample-guide,
body[data-outcome="survival"] #sample-size-container,
body[data-outcome="survival"] .selection-row,
body[data-outcome="survival"] #ranking-metric-select,
body[data-outcome="survival"] label[for="ranking-metric-select"],
body[data-outcome="survival"] .threshold-row:has(#decision-threshold),
body[data-outcome="survival"] .threshold-row:has(#recalibration-select) { display: none !important; }
body[data-outcome="survival"] #predict-form-grid,
body[data-outcome="survival"] #single-predict-provenance-bar,
body[data-outcome="survival"] #batch-predict-provenance-bar,
body[data-outcome="survival"] #run-single-predict-btn,
body[data-outcome="survival"] #single-result-banner,
body[data-outcome="survival"] #sample-batch-btn { display: none !important; }