/* =============================================================================
   UNIVERSAL ALGO OPTIMIZER — PREMIUM DARK DASHBOARD STYLESHEET
   ============================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* Core Colors */
    --bg-primary: #0a0e17;
    --bg-secondary: #0f1520;
    --bg-card: #141b2b;
    --bg-card-hover: #1a2236;
    --bg-input: #0d1220;
    --bg-overlay: rgba(0, 0, 0, 0.7);
    
    /* Borders */
    --border-color: #1e293b;
    --border-hover: #334155;
    --border-focus: #3b82f6;
    
    /* Text */
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-heading: #f8fafc;
    
    /* Accent Colors */
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-blue-glow: rgba(59, 130, 246, 0.15);
    --accent-purple: #8b5cf6;
    --accent-purple-glow: rgba(139, 92, 246, 0.15);
    --accent-cyan: #06b6d4;
    
    /* Status Colors */
    --green: #10b981;
    --green-bg: rgba(16, 185, 129, 0.1);
    --green-border: rgba(16, 185, 129, 0.3);
    --red: #ef4444;
    --red-bg: rgba(239, 68, 68, 0.1);
    --red-border: rgba(239, 68, 68, 0.3);
    --yellow: #f59e0b;
    --yellow-bg: rgba(245, 158, 11, 0.1);
    --orange: #f97316;
    
    /* Chart Colors */
    --chart-up: #22c55e;
    --chart-down: #ef4444;
    
    /* Sizing */
    --sidebar-width: 340px;
    --header-height: 56px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow-blue: 0 0 20px rgba(59, 130, 246, 0.15);
    --shadow-glow-green: 0 0 20px rgba(16, 185, 129, 0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* =============================================================================
   RESET & BASE
   ============================================================================= */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =============================================================================
   SCROLLBAR
   ============================================================================= */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }

/* =============================================================================
   LAYOUT
   ============================================================================= */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

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

.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
}

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

.header-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
    font-weight: 700;
}

.brand-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: -0.02em;
}

.brand-sub {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

.header-divider {
    width: 1px;
    height: 28px;
    background: var(--border-color);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-nav-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 12px;
    transition: all var(--transition-fast);
}

.header-nav-btn:hover {
    background: var(--bg-card);
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.header-nav-btn.active {
    background: var(--accent-blue-glow);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.header-nav-btn i {
    font-size: 13px;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    animation: pulse-dot 2s infinite;
}

.status-dot.idle { background: var(--text-muted); animation: none; }
.status-dot.running { background: var(--accent-blue); }
.status-dot.error { background: var(--red); animation: none; }

@keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* =============================================================================
   SIDEBAR — LEFT CONFIG PANEL
   ============================================================================= */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
    transition: width var(--transition-normal);
}

.sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
}

.sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.sidebar-section {
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    cursor: pointer;
    user-select: none;
    transition: background var(--transition-fast);
}

.section-header:hover {
    background: var(--bg-card);
}

.section-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title i {
    color: var(--accent-blue);
    font-size: 12px;
}

.section-arrow {
    font-size: 10px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.section-header.collapsed .section-arrow {
    transform: rotate(-90deg);
}

.section-body {
    padding: 0 16px 16px;
}

.section-body.collapsed {
    display: none;
}

/* =============================================================================
   FORM ELEMENTS
   ============================================================================= */
.form-group {
    margin-bottom: 12px;
}

.form-label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 5px;
    letter-spacing: 0.02em;
}

.form-select,
.form-input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 12px;
    font-family: 'Inter', sans-serif;
    transition: all var(--transition-fast);
    outline: none;
}

.form-select:hover,
.form-input:hover {
    border-color: var(--border-hover);
}

.form-select:focus,
.form-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px var(--accent-blue-glow);
}

.form-select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

/* =============================================================================
   BUTTONS
   ============================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));
    color: white;
    box-shadow: var(--shadow-glow-blue);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-blue-hover), #1d4ed8);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

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

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--green), #059669);
    color: white;
    box-shadow: var(--shadow-glow-green);
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: var(--red-bg);
    color: var(--red);
    border: 1px solid var(--red-border);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 11px;
}

.btn-full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn-group {
    display: flex;
    gap: 8px;
}

/* =============================================================================
   PARAMETER CARDS
   ============================================================================= */
.param-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.param-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
    transition: all var(--transition-fast);
}

.param-card:hover {
    border-color: var(--border-hover);
}

.param-card.optimizing {
    border-color: var(--accent-blue);
    background: var(--accent-blue-glow);
}

.param-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.param-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

.param-type-badge {
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 3px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.param-type-badge.int { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }
.param-type-badge.float { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }
.param-type-badge.bool { background: rgba(245, 158, 11, 0.15); color: var(--yellow); }
.param-type-badge.str { background: rgba(16, 185, 129, 0.15); color: var(--green); }
.param-type-badge.path { background: rgba(100, 116, 139, 0.15); color: var(--text-muted); }

.param-value-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.param-value-row .form-input {
    padding: 5px 8px;
    font-size: 11px;
    font-family: 'JetBrains Mono', monospace;
}

.param-value-row .form-input.small {
    width: 70px;
}

.param-range-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 6px;
    margin-top: 6px;
}

.param-range-label {
    font-size: 9px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    transition: all var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    left: 2px;
    bottom: 2px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
}

.toggle-switch input:checked + .toggle-slider::before {
    background: white;
    transform: translateX(16px);
}

/* =============================================================================
   MAIN CONTENT AREA
   ============================================================================= */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Tab Bar */
.tab-bar {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 16px;
    height: 40px;
    flex-shrink: 0;
    gap: 0;
}

.tab-item {
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.tab-item:hover {
    color: var(--text-secondary);
}

.tab-item.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
}

.tab-badge {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 10px;
    background: var(--accent-blue-glow);
    color: var(--accent-blue);
    font-weight: 600;
}

/* Tab Content */
.tab-content {
    flex: 1;
    overflow: hidden;
    display: none;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* =============================================================================
   PROGRESS PANEL
   ============================================================================= */
.progress-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    margin: 16px;
}

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

.progress-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-heading);
}

.progress-stats {
    display: flex;
    gap: 20px;
}

.progress-stat {
    text-align: center;
}

.progress-stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-heading);
    font-family: 'JetBrains Mono', monospace;
}

.progress-stat-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.progress-bar-container {
    width: 100%;
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    border-radius: 4px;
    transition: width 0.5s ease;
    position: relative;
}

.progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-detail {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--text-muted);
}

/* =============================================================================
   RESULTS: run switcher (show one run, or tick several to compare)
   ============================================================================= */
/* One compact row whatever the run count; the list scrolls inside a dropdown. */
.run-picker {
    position: relative;
    display: inline-block;
    padding: 0 0 10px;
}

.run-picker-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-body);
    font-size: 12px;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s;
}

.run-picker-btn:hover { border-color: var(--accent-blue); }
.run-picker-btn > .fa-layer-group { color: var(--accent-blue); }
.run-picker-current { color: var(--text-heading); font-weight: 600; }

.run-picker-count {
    background: var(--bg-input);
    color: var(--text-muted);
    border-radius: 999px;
    padding: 1px 7px;
    font-size: 10px;
    font-family: 'JetBrains Mono', monospace;
}

.run-picker-menu {
    position: absolute;
    top: calc(100% - 4px);
    left: 0;
    z-index: 60;
    min-width: 380px;
    max-width: 520px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
    overflow: hidden;
}

.run-picker-head {
    padding: 8px 12px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.run-picker-list {
    max-height: 320px;
    overflow-y: auto;
}

.run-option {
    display: grid;
    grid-template-columns: auto 110px 1fr auto auto;
    align-items: center;
    gap: 10px;
    padding: 7px 12px;
    cursor: pointer;
    font-size: 11px;
    border-left: 2px solid transparent;
}

.run-option:hover { background: var(--bg-secondary); }
.run-option.active {
    background: var(--accent-blue-glow);
    border-left-color: var(--accent-blue);
}

.run-option input { cursor: pointer; margin: 0; }

.run-option-when {
    color: var(--text-heading);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
}

.run-option-name {
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.run-option-meta {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
}

.run-option-status {
    font-size: 9px;
    padding: 1px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 600;
}

.results-table .run-cell {
    font-size: 11px;
    color: var(--accent-blue);
    max-width: 170px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* =============================================================================
   MULTI-RUN: toolbar, per-run actions, queue
   ============================================================================= */
.runs-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 16px 16px 0;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius, 6px);
}

.runs-toolbar-info {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
}

.runs-toolbar-info span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.runs-toolbar-info strong { color: var(--text-heading); }

.runs-toolbar-limit {
    display: flex;
    align-items: center;
    gap: 8px;
}

.runs-warn { color: var(--yellow); }
.runs-warn strong { color: var(--yellow); }

.runs-warn-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 8px 16px 0;
    padding: 8px 14px;
    font-size: 11px;
    color: var(--text-body);
    background: var(--yellow-bg);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--border-radius, 6px);
}

.runs-warn-banner i { color: var(--yellow); }

.progress-actions {
    display: flex;
    justify-content: flex-end;
    gap: 6px;
    margin-top: 12px;
}

.p-status-pill {
    margin-left: 8px;
    font-size: 10px;
    padding: 2px 7px;
    border-radius: 4px;
    text-transform: uppercase;
    font-weight: 600;
}

.queue-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.queue-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
}

.queue-pos {
    flex: 0 0 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-input);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 700;
    font-family: 'JetBrains Mono', monospace;
}

.queue-meta { flex: 1; min-width: 0; }

.queue-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-heading);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.queue-sub {
    font-size: 10px;
    color: var(--text-muted);
}

/* Resume prompt shown when a run stopped part-way through */
.resume-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
    padding: 10px 14px;
    background: var(--yellow-bg);
    border: 1px solid rgba(245, 158, 11, 0.3);
    border-radius: var(--border-radius, 6px);
}

.resume-banner-text {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-body);
}

.resume-banner-text i {
    color: var(--yellow);
}

/* =============================================================================
   RESULTS TABLE
   ============================================================================= */
.results-container {
    flex: 1;
    overflow: auto;
    padding: 16px;
}

.results-table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.results-table thead {
    position: sticky;
    top: 0;
    z-index: 10;
}

.results-table th {
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

.results-table th:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.results-table th.sorted {
    color: var(--accent-blue);
}

.results-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
}

.results-table tbody tr {
    transition: background var(--transition-fast);
}

.results-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.results-table tbody tr.rank-1 { border-left: 3px solid #fbbf24; }
.results-table tbody tr.rank-2 { border-left: 3px solid #9ca3af; }
.results-table tbody tr.rank-3 { border-left: 3px solid #d97706; }

.cell-positive { color: var(--green); }
.cell-negative { color: var(--red); }
.cell-muted { color: var(--text-muted); }

.cell-score {
    font-weight: 700;
    color: var(--accent-blue);
}

.cell-action-btn {
    padding: 3px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 10px;
    transition: all var(--transition-fast);
}

.cell-action-btn:hover {
    background: var(--accent-blue-glow);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* =============================================================================
   OPTIMIZATIONS LIST
   ============================================================================= */
.opt-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
    overflow-y: auto;
    flex: 1;
}

.opt-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.opt-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.opt-card.active {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow-blue);
}

.opt-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.opt-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-heading);
}

.opt-card-status {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
}

.opt-card-status.completed { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.opt-card-status.running { background: var(--accent-blue-glow); color: var(--accent-blue); border: 1px solid rgba(59,130,246,0.3); }
.opt-card-status.error { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }
.opt-card-status.stopped { background: var(--yellow-bg); color: var(--yellow); border: 1px solid rgba(245,158,11,0.3); }
.opt-card-status.stopping { background: var(--yellow-bg); color: var(--yellow); border: 1px solid rgba(245,158,11,0.3); }
.opt-card-status.interrupted { background: var(--yellow-bg); color: var(--yellow); border: 1px solid rgba(245,158,11,0.3); }
.opt-card-status.resuming { background: var(--accent-blue-glow); color: var(--accent-blue); border: 1px solid rgba(59,130,246,0.3); }
.opt-card-status.queued { background: var(--yellow-bg); color: var(--yellow); border: 1px solid rgba(245,158,11,0.3); }

/* =============================================================================
   MOBILE / TABLET  (<= 900px)
   =============================================================================
   Everything here lives inside media queries, so desktop and laptop rendering
   is byte-for-byte what it was.

   The dashboard is built as a fixed-viewport app: html/body are locked with
   `overflow: hidden`, and .app-body is a row holding a 340px sidebar that
   cannot shrink. On a ~400px-wide phone that leaves the main content pushed
   off-screen with no way to scroll to it — which is why the tab bar, progress
   panel and Stop button were unreachable. Below, the shell becomes a single
   scrolling column.
   ============================================================================= */
@media (max-width: 900px) {

    /* Let the page scroll. Without this nothing below the fold is reachable. */
    html, body {
        height: auto;
        min-height: 100%;
        overflow-x: hidden;
        overflow-y: auto;
    }

    .app-container {
        height: auto;
        min-height: 100vh;
    }

    /* ---- Header ------------------------------------------------------------
       The fixed 56px height clipped the two-line brand, and the nav row
       overflowed with no way to reach History / Saved / Walk-Forward. */
    .app-header {
        height: auto;
        min-height: var(--header-height);
        flex-wrap: wrap;
        align-items: flex-start;
        gap: 6px;
        padding: 8px 12px;
        position: sticky;
        top: 0;
    }

    .header-left {
        width: 100%;
        gap: 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .header-left::-webkit-scrollbar { display: none; }

    .header-brand { flex: 0 0 auto; }
    .brand-title { font-size: 14px; white-space: nowrap; }
    .brand-sub, .header-divider { display: none; }
    .header-nav-btn { flex: 0 0 auto; white-space: nowrap; }

    .header-right {
        width: 100%;
        justify-content: flex-end;
        margin-top: 2px;
    }

    /* ---- Shell: sidebar above content, both full width ---------------------- */
    .app-body {
        flex-direction: column;
        overflow: visible;
    }

    .sidebar {
        width: 100%;
        flex: 0 0 auto;
        /* Capped so the Progress panel sits just below rather than a full
           screen of form fields away; the config scrolls inside itself. */
        max-height: 52vh;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        transition: none;
    }

    .sidebar-body { min-height: 0; }

    .main-content {
        overflow: visible;
        min-height: 60vh;
    }

    .tab-content.active { overflow: visible; }

    /* Tabs scroll sideways instead of running off the screen edge. */
    .tab-bar {
        overflow-x: auto;
        padding: 0 8px;
        scrollbar-width: none;
    }
    .tab-bar::-webkit-scrollbar { display: none; }
    .tab-item { flex: 0 0 auto; }

    /* Once the flex chain stops bounding heights, the canvas needs its own. */
    .chart-container { min-height: 55vh; }
    .chart-toolbar { flex-wrap: wrap; gap: 8px; }

    /* ---- Progress + queue --------------------------------------------------- */
    .progress-panel { margin: 10px; padding: 14px; }

    .progress-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .progress-stats {
        width: 100%;
        gap: 0;
        justify-content: space-between;
    }

    /* Stop / View Results were overflowing the panel edge. */
    .progress-actions { flex-wrap: wrap; }

    .runs-toolbar {
        margin: 10px 10px 0;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .runs-toolbar-info { gap: 6px 14px; }
    .runs-warn-banner { margin: 8px 10px 0; }
    .queue-item { flex-wrap: wrap; }
    .queue-meta { flex: 1 1 55%; }

    /* ---- Results ------------------------------------------------------------ */
    .results-container { padding: 10px; }

    /* The dropdown was 380px wide — wider than the viewport. */
    .run-picker { width: 100%; }
    .run-picker-btn { width: 100%; justify-content: flex-start; }
    .run-picker-menu {
        min-width: 0;
        width: 100%;
        max-width: none;
    }
    .run-option {
        grid-template-columns: auto 1fr auto auto;
        gap: 8px;
    }
    .run-option-name { display: none; }

    /* ---- Parameter cards ---------------------------------------------------- */
    .param-range-row { grid-template-columns: 1fr 1fr; }

    /* ---- History cards ------------------------------------------------------ */
    .opt-card-meta { flex-wrap: wrap; gap: 6px 14px; }
    .opt-card-actions { flex-wrap: wrap; }

    /* ---- Modals -------------------------------------------------------------
       Several modal cards carry an inline max-width in the markup (900px,
       700px, 500px, 95vw). Inline styles beat media queries, so !important is
       what makes the mobile width actually apply. Scoped to this breakpoint,
       so desktop keeps its per-modal widths exactly as authored. */
    .modal-card {
        width: 96%;
        max-width: none !important;
        max-height: 92vh;
    }
    .modal-header, .modal-body, .modal-footer {
        padding-left: 14px;
        padding-right: 14px;
    }
    .modal-footer { flex-wrap: wrap; }
    .modal-footer .btn { flex: 1 1 auto; justify-content: center; }
    .batch-detail-grid { grid-template-columns: 1fr; }

    /* ---- Walk-forward ------------------------------------------------------- */
    .wfo-progress-detail { grid-template-columns: repeat(2, 1fr); }

    /* Anchored to the bottom, clear of the taller wrapped header. */
    .toast-container {
        top: auto;
        bottom: 16px;
        left: 12px;
        right: 12px;
    }
}

/* =============================================================================
   PHONES  (<= 560px) — tighter still
   ============================================================================= */
@media (max-width: 560px) {

    /* Icon only; the wordmark costs a nav button's worth of width. */
    .brand-title { display: none; }

    .header-nav-btn {
        padding: 6px 10px;
        font-size: 11px;
    }

    .sidebar { max-height: 48vh; }

    /* Four stats across is unreadable at this width; two rows of two. */
    .progress-stats { flex-wrap: wrap; gap: 10px 0; }
    .progress-stat { flex: 1 0 50%; }

    .param-range-row { grid-template-columns: 1fr; }

    /* Full-screen modals — a centred card wastes the little space there is.
       Height is left alone on purpose: the Excel viewer sets height:90vh
       inline for its own flex layout, and overriding that gains nothing. */
    .modal-card {
        width: 100% !important;
        max-width: none !important;
        max-height: 100vh;
        border-radius: 0;
        border: none;
    }

    .run-option {
        grid-template-columns: auto 1fr auto;
        font-size: 10px;
    }

    .wfo-progress-detail { grid-template-columns: 1fr 1fr; }

    /* Tap targets: 32px was fiddly with a thumb. */
    .cell-action-btn { min-width: 30px; min-height: 30px; }
    .btn { min-height: 34px; }
}
.opt-card-status.aggregating { background: var(--accent-blue-glow); color: var(--accent-blue); border: 1px solid rgba(59,130,246,0.3); }

.opt-card-meta {
    display: flex;
    gap: 16px;
    font-size: 11px;
    color: var(--text-muted);
}

.opt-card-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.opt-card-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

/* =============================================================================
   CHART CONTAINER
   ============================================================================= */
.chart-container {
    flex: 1;
    position: relative;
    background: var(--bg-primary);
}

.chart-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.chart-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
}

.chart-canvas-wrapper {
    flex: 1;
    width: 100%;
    height: 100%;
    position: relative;
}

#chartCanvas {
    width: 100%;
    height: 100%;
}

/* =============================================================================
   MODAL
   ============================================================================= */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-overlay);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-heading);
}

.modal-close {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* =============================================================================
   BATCH DETAIL MODAL
   ============================================================================= */
.batch-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.batch-detail-section {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 14px;
}

.batch-detail-section h4 {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.metric-row {
    display: flex;
    justify-content: space-between;
    padding: 4px 0;
    font-size: 12px;
}

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

.metric-row .value {
    color: var(--text-heading);
    font-weight: 600;
    font-family: 'JetBrains Mono', monospace;
}

/* =============================================================================
   EMPTY STATE
   ============================================================================= */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    text-align: center;
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state h3 {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 13px;
    max-width: 400px;
}

/* =============================================================================
   TOAST NOTIFICATIONS
   ============================================================================= */
.toast-container {
    position: fixed;
    top: 70px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideIn 0.3s ease;
}

.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }
.toast.info { border-left: 3px solid var(--accent-blue); }
.toast.warning { border-left: 3px solid var(--yellow); }

.toast-icon { font-size: 16px; }
.toast.success .toast-icon { color: var(--green); }
.toast.error .toast-icon { color: var(--red); }
.toast.info .toast-icon { color: var(--accent-blue); }

.toast-message {
    font-size: 12px;
    color: var(--text-primary);
    flex: 1;
}

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

/* =============================================================================
   LOADING SPINNER
   ============================================================================= */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =============================================================================
   UTILITY CLASSES
   ============================================================================= */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.text-sm { font-size: 12px; }
.text-xs { font-size: 11px; }
.text-muted { color: var(--text-muted); }
.font-mono { font-family: 'JetBrains Mono', monospace; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ==========================================================================
   EXCEL VIEWER STYLES
   ========================================================================== */
.excel-tabs {
    display: flex;
    gap: 2px;
    padding: 8px 16px 0;
}

.excel-tab {
    padding: 8px 16px;
    background: var(--bg-main);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    font-weight: 500;
    font-size: 13px;
    transition: all 0.2s ease;
}

.excel-tab:hover {
    color: var(--text-main);
    background: var(--bg-card);
}

.excel-tab.active {
    background: var(--bg-main);
    color: var(--accent-blue);
    border-top: 2px solid var(--accent-blue);
}

.excel-sheet {
    display: none;
    padding: 16px;
}

.excel-sheet.active {
    display: block;
}

table.excel-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

table.excel-table thead th {
    position: sticky;
    top: 0;
    background: var(--bg-panel);
    color: var(--text-heading);
    padding: 8px 12px;
    font-weight: 600;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
    z-index: 10;
}

table.excel-table tbody td {
    padding: 6px 12px;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    white-space: nowrap;
}

table.excel-table tbody tr:nth-child(even) {
    background: rgba(255, 255, 255, 0.02);
}

table.excel-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* =============================================================================
   WALK-FORWARD TESTING STYLES
   ============================================================================= */

.wfo-container { padding: 24px; overflow-y: auto; height: 100%; }
.wfo-section { margin-bottom: 28px; }
.wfo-section-title {
    font-size: 15px; font-weight: 700; color: var(--text-heading);
    margin-bottom: 14px; display: flex; align-items: center; gap: 8px;
    padding-bottom: 8px; border-bottom: 1px solid var(--border-color);
}
.wfo-section-title i { color: var(--accent-blue); font-size: 14px; }

/* Config Panel */
.wfo-config-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 14px;
}
.wfo-config-group { display: flex; flex-direction: column; gap: 4px; }
.wfo-config-group label {
    font-size: 11px; font-weight: 600; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.5px;
}
.wfo-config-group input,
.wfo-config-group select {
    background: var(--bg-input); border: 1px solid var(--border-color);
    color: var(--text-primary); padding: 8px 10px; border-radius: 6px;
    font-size: 13px; font-family: inherit;
    transition: border-color 0.2s;
}
.wfo-config-group input:focus,
.wfo-config-group select:focus {
    outline: none; border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px var(--accent-blue-glow);
}

/* Window Mode Toggle */
.wfo-mode-toggle {
    display: flex; gap: 0; border-radius: 8px; overflow: hidden;
    border: 1px solid var(--border-color);
}
.wfo-mode-btn {
    flex: 1; padding: 10px 16px; background: var(--bg-input);
    color: var(--text-secondary); border: none; cursor: pointer;
    font-size: 12px; font-weight: 600; text-align: center;
    transition: all 0.2s;
}
.wfo-mode-btn.active {
    background: var(--accent-blue); color: #fff;
    box-shadow: 0 2px 8px rgba(59,130,246,0.3);
}
.wfo-mode-desc {
    font-size: 11px; color: var(--text-muted); margin-top: 6px;
    line-height: 1.5; padding: 8px 10px;
    background: rgba(59,130,246,0.05); border-radius: 6px;
    border-left: 2px solid var(--accent-blue);
}

/* Window Preview Table */
.wfo-preview-table {
    width: 100%; border-collapse: collapse; font-size: 12px;
    background: var(--bg-card); border-radius: 8px; overflow: hidden;
    border: 1px solid var(--border-color);
}
.wfo-preview-table th {
    padding: 10px 14px; text-align: left; font-weight: 600;
    color: var(--text-secondary); background: var(--bg-secondary);
    text-transform: uppercase; font-size: 10px; letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}
.wfo-preview-table td {
    padding: 8px 14px; border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}
.wfo-preview-table tr:nth-child(even) { background: rgba(255,255,255,0.015); }
.wfo-preview-table tr:hover { background: rgba(59,130,246,0.05); }
.wfo-preview-table .is-period { color: var(--accent-cyan); font-weight: 500; }
.wfo-preview-table .oos-period { color: var(--accent-purple); font-weight: 500; }

/* Status Badges */
.wfo-status {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 8px; border-radius: 4px; font-size: 10px;
    font-weight: 600; text-transform: uppercase;
}
.wfo-status.ready { background: var(--green-bg); color: var(--green); }
.wfo-status.running { background: var(--accent-blue-glow); color: var(--accent-blue); }
.wfo-status.completed { background: var(--green-bg); color: var(--green); }
.wfo-status.failed { background: var(--red-bg); color: var(--red); }
.wfo-status.pending { background: var(--yellow-bg); color: var(--yellow); }

/* Progress */
.wfo-progress-container {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: 10px; padding: 20px;
}
.wfo-progress-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 12px;
}
.wfo-progress-header h4 {
    margin: 0; font-size: 14px; color: var(--text-heading);
}
.wfo-progress-bar {
    height: 8px; background: var(--bg-input); border-radius: 4px;
    overflow: hidden; margin-bottom: 10px;
}
.wfo-progress-fill {
    height: 100%; border-radius: 4px; transition: width 0.5s ease;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
}
.wfo-progress-detail {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
}
.wfo-progress-stat {
    text-align: center; padding: 8px;
    background: var(--bg-secondary); border-radius: 6px;
}
.wfo-progress-stat .label {
    font-size: 10px; color: var(--text-muted); text-transform: uppercase;
}
.wfo-progress-stat .value {
    font-size: 16px; font-weight: 700; color: var(--text-heading);
    font-family: 'JetBrains Mono', monospace;
}

/* Summary Cards */
.wfo-summary-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
}
.wfo-metric-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: 8px; padding: 14px; text-align: center;
    transition: border-color 0.2s, transform 0.2s;
}
.wfo-metric-card:hover {
    border-color: var(--accent-blue); transform: translateY(-1px);
}
.wfo-metric-card .metric-label {
    font-size: 10px; color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 0.5px; margin-bottom: 4px;
}
.wfo-metric-card .metric-value {
    font-size: 20px; font-weight: 700; color: var(--text-heading);
    font-family: 'JetBrains Mono', monospace;
}
.wfo-metric-card .metric-value.positive { color: var(--green); }
.wfo-metric-card .metric-value.negative { color: var(--red); }

/* Step Results Table */
.wfo-steps-table {
    width: 100%; border-collapse: collapse; font-size: 11px;
    background: var(--bg-card); border-radius: 8px; overflow: hidden;
    border: 1px solid var(--border-color);
}
.wfo-steps-table th {
    padding: 8px 10px; text-align: right; font-weight: 600;
    color: var(--text-secondary); background: var(--bg-secondary);
    font-size: 10px; text-transform: uppercase; letter-spacing: 0.3px;
    border-bottom: 1px solid var(--border-color);
}
.wfo-steps-table th:first-child { text-align: center; }
.wfo-steps-table td {
    padding: 7px 10px; border-bottom: 1px solid var(--border-color);
    text-align: right; font-family: 'JetBrains Mono', monospace;
    color: var(--text-primary); font-size: 11px;
}
.wfo-steps-table td:first-child { text-align: center; }
.wfo-steps-table tr:hover { background: rgba(59,130,246,0.05); }

/* Robustness */
.wfo-robustness {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: 10px; padding: 20px;
}
.wfo-robustness-label {
    font-size: 22px; font-weight: 800; text-align: center;
    margin-bottom: 16px; padding: 12px;
    border-radius: 8px;
}
.wfo-robustness-label.robust { color: var(--green); background: var(--green-bg); }
.wfo-robustness-label.promising { color: var(--accent-blue); background: var(--accent-blue-glow); }
.wfo-robustness-label.weak { color: var(--yellow); background: var(--yellow-bg); }
.wfo-robustness-label.unstable { color: var(--red); background: var(--red-bg); }
.wfo-robustness-label.overfit { color: var(--orange); background: rgba(249,115,22,0.1); }
.wfo-robustness-label.insufficient { color: var(--text-muted); background: var(--bg-secondary); }

.wfo-robustness-components {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
}
.wfo-rob-component {
    padding: 10px; background: var(--bg-secondary); border-radius: 6px;
}
.wfo-rob-component .name {
    font-size: 10px; color: var(--text-muted); text-transform: uppercase;
    margin-bottom: 4px;
}
.wfo-rob-component .bar {
    height: 4px; background: var(--bg-input); border-radius: 2px;
    overflow: hidden; margin: 4px 0;
}
.wfo-rob-component .bar-fill {
    height: 100%; border-radius: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    transition: width 0.5s;
}
.wfo-rob-component .score {
    font-size: 12px; font-weight: 600; color: var(--text-heading);
    font-family: 'JetBrains Mono', monospace;
}

/* Candidate Cards */
.wfo-candidates-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 14px;
}
.wfo-candidate-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: 10px; padding: 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.wfo-candidate-card:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 4px 16px rgba(139,92,246,0.1);
}
.wfo-candidate-card .card-method {
    font-size: 10px; color: var(--accent-purple); text-transform: uppercase;
    font-weight: 700; letter-spacing: 0.5px; margin-bottom: 4px;
}
.wfo-candidate-card .card-label {
    font-size: 14px; font-weight: 700; color: var(--text-heading);
    margin-bottom: 6px;
}
.wfo-candidate-card .card-desc {
    font-size: 11px; color: var(--text-secondary); line-height: 1.5;
    margin-bottom: 10px;
}
.wfo-candidate-card .card-confidence {
    display: inline-flex; align-items: center; gap: 4px;
    font-size: 10px; font-weight: 600; padding: 2px 8px;
    border-radius: 4px;
}
.wfo-candidate-card .card-confidence.high { background: var(--green-bg); color: var(--green); }
.wfo-candidate-card .card-confidence.medium { background: var(--yellow-bg); color: var(--yellow); }
.wfo-candidate-card .card-confidence.low { background: var(--red-bg); color: var(--red); }

/* Full-Sample Warning */
.wfo-full-sample-warning {
    background: rgba(249,115,22,0.08); border: 1px solid rgba(249,115,22,0.3);
    border-radius: 8px; padding: 12px 16px; margin-bottom: 16px;
    display: flex; align-items: center; gap: 10px;
}
.wfo-full-sample-warning i { color: var(--orange); font-size: 18px; }
.wfo-full-sample-warning .text {
    font-size: 12px; color: var(--orange); font-weight: 600;
}

/* Optimization Estimates */
.opt-estimates {
    padding: 10px 14px;
    background: rgba(16, 185, 129, 0.08); /* Green tint */
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 8px;
    font-size: 12px;
    color: var(--text-primary);
    line-height: 1.4;
    text-align: center;
}
.opt-estimates .est-highlight {
    font-weight: 700;
    color: var(--green);
}
.opt-estimates.danger {
    background: rgba(239, 68, 68, 0.08); /* Red tint */
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--red);
}
.opt-estimates.danger .est-highlight {
    color: var(--red);
}

/* Drawdown Optimization */
.dd-opt-info {
    margin-top: 8px;
    padding: 10px 12px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 11px;
    color: var(--blue);
}
.dd-opt-info i { margin-top: 2px; }
.dd-opt-description {
    margin-top: 8px;
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Compatibility Check */
.wfo-compat { padding: 12px; background: var(--bg-card); border-radius: 8px; border: 1px solid var(--border-color); }
.wfo-compat-item {
    display: flex; align-items: center; gap: 8px; padding: 4px 0;
    font-size: 12px; color: var(--text-primary);
}
.wfo-compat-item .check { color: var(--green); font-weight: 700; }
.wfo-compat-item .cross { color: var(--red); font-weight: 700; }
.wfo-compat-result {
    margin-top: 8px; padding: 8px 12px; border-radius: 6px;
    font-size: 12px; font-weight: 700; text-align: center;
}
.wfo-compat-result.yes { background: var(--green-bg); color: var(--green); }
.wfo-compat-result.no { background: var(--red-bg); color: var(--red); }

/* Stability Heatmap */
.wfo-stability-table td.low-cv { background: rgba(16,185,129,0.1); }
.wfo-stability-table td.med-cv { background: rgba(245,158,11,0.1); }
.wfo-stability-table td.high-cv { background: rgba(239,68,68,0.1); }

/* Action Buttons Row */
.wfo-actions {
    display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px;
    align-items: center;
}

/* Export bar */
.wfo-export-bar {
    display: flex; gap: 8px; flex-wrap: wrap;
    padding: 12px 16px; background: var(--bg-card);
    border: 1px solid var(--border-color); border-radius: 8px;
}