/* ═══════════════════════════════════════════════════════════════════════════
   CNN TAB STYLES - DARK LUXE EDITION
   Purple accent theme (#a855f7)
   ═══════════════════════════════════════════════════════════════════════════ */

/* CNN-specific accent color override */
#cnn-panel {
    --accent: var(--accent-cnn);
    --accent-glow: var(--accent-cnn-glow);
    --accent-soft: var(--accent-cnn-soft);
}

/* Tab Navigation - Legacy support (main tabs are in main.css) */
.tab-nav {
    display: flex;
    gap: 4px;
    padding: 4px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-subtle);
}

.tab-btn {
    padding: 8px 20px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.tab-btn--active {
    color: var(--accent);
    background: var(--bg-elevated);
    box-shadow: 0 0 20px var(--accent-glow);
}

/* Tab Panels */
.tab-panel {
    display: none;
    grid-area: controls / controls / main / main;
    grid-row: 2 / 4;
}

.tab-panel--active {
    display: contents;
}

/* Ensure tab panel children inherit proper grid positioning */
#mlp-panel.tab-panel--active > .controls-bar {
    grid-area: controls;
}

#mlp-panel.tab-panel--active > .main-content {
    grid-area: main;
}

#cnn-panel.tab-panel--active > .cnn-controls-bar {
    grid-area: controls;
}

#cnn-panel.tab-panel--active > .main-content {
    grid-area: main;
    min-height: 0;
    overflow: hidden;
}

/* CNN Panel Layout */
.cnn-panel {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    grid-template-rows: 1fr;
    gap: var(--gap);
    grid-area: main;
    min-height: 0;
    overflow: hidden;
}

.cnn-panel .controls-bar {
    grid-column: 1 / -1;
}

/* ─────────────────────────────────────────────────────────────────────────────
   CNN Sidebar - Layer Builder
   ───────────────────────────────────────────────────────────────────────────── */

.cnn-sidebar {
    display: flex;
    flex-direction: column;
    min-height: 0;
    max-height: 100%;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.cnn-sidebar__header {
    padding: 16px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
}

.cnn-sidebar__title {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    letter-spacing: -0.02em;
}

.cnn-sidebar__subtitle {
    font-size: 11px;
    color: var(--text-tertiary);
}

.cnn-sidebar__content {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-soft) transparent;
}

/* Webkit scrollbar for sidebar */
.cnn-sidebar__content::-webkit-scrollbar {
    width: 6px;
}

.cnn-sidebar__content::-webkit-scrollbar-track {
    background: transparent;
}

.cnn-sidebar__content::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: 3px;
}

.cnn-sidebar__content::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

.cnn-sidebar__footer {
    padding: 12px;
    border-top: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: var(--bg-surface);
}

/* Layer List */
.cnn-layers-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Layer Card */
.layer-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 12px;
    transition: all 0.2s ease;
}

.layer-card:hover {
    border-color: var(--accent-soft);
    background: var(--bg-elevated);
    box-shadow: 0 0 20px var(--accent-glow);
}

.layer-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.layer-card__name {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.layer-card__remove {
    width: 22px;
    height: 22px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.layer-card__remove:hover {
    color: var(--color-error);
    background: rgba(239, 68, 68, 0.15);
}

.layer-card__config {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.layer-card__config label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-secondary);
}

.layer-card__config select {
    flex: 1;
    padding: 6px 10px;
    font-size: 11px;
    font-family: var(--font-mono);
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.layer-card__config select:hover {
    border-color: var(--accent-soft);
}

.layer-card__config select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.layer-card__config input[type="range"] {
    flex: 1;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-default);
    border-radius: 2px;
}

.layer-card__config input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--accent-glow);
}

.layer-card__no-config {
    font-size: 11px;
    font-style: italic;
    color: var(--text-tertiary);
}

.rate-value {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--accent);
    min-width: 32px;
    text-align: right;
}

/* Add Layer Buttons */
.add-layer-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.add-layer-btn {
    padding: 10px 12px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.add-layer-btn:hover {
    color: var(--text-primary);
    background: var(--bg-elevated);
    transform: translateY(-1px);
}

/* Layer type color coding */
.add-layer-btn--conv {
    border-left: 3px solid #60a5fa;
}
.add-layer-btn--conv:hover {
    box-shadow: 0 0 15px rgba(96, 165, 250, 0.3);
}

.add-layer-btn--pool {
    border-left: 3px solid #34d399;
}
.add-layer-btn--pool:hover {
    box-shadow: 0 0 15px rgba(52, 211, 153, 0.3);
}

.add-layer-btn--dense {
    border-left: 3px solid #f87171;
}
.add-layer-btn--dense:hover {
    box-shadow: 0 0 15px rgba(248, 113, 113, 0.3);
}

.add-layer-btn--dropout {
    border-left: 3px solid #fbbf24;
}
.add-layer-btn--dropout:hover {
    box-shadow: 0 0 15px rgba(251, 191, 36, 0.3);
}

.add-layer-btn--batchnorm {
    border-left: 3px solid #a855f7;
}
.add-layer-btn--batchnorm:hover {
    box-shadow: 0 0 15px rgba(168, 85, 247, 0.3);
}

.add-layer-btn--flatten {
    border-left: 3px solid #94a3b8;
}
.add-layer-btn--flatten:hover {
    box-shadow: 0 0 15px rgba(148, 163, 184, 0.3);
}

/* ─────────────────────────────────────────────────────────────────────────────
   CNN Visualization Area
   ───────────────────────────────────────────────────────────────────────────── */

.cnn-visualization {
    display: flex;
    flex-direction: column;
    gap: var(--gap);
    min-height: 0;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-soft) transparent;
}

.cnn-visualization::-webkit-scrollbar {
    width: 6px;
}

.cnn-visualization::-webkit-scrollbar-track {
    background: transparent;
}

.cnn-visualization::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: 3px;
}

.cnn-visualization::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

.cnn-arch-panel {
    flex: 1;
    min-height: 220px;
}

.cnn-arch-panel .viz-panel__body {
    background: linear-gradient(135deg, var(--bg-void) 0%, var(--bg-deep) 100%);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.cnn-feature-panel {
    flex: 1;
    min-height: 200px;
}

.cnn-feature-panel .viz-panel__body {
    background: var(--bg-void);
}

/* ─────────────────────────────────────────────────────────────────────────────
   CNN Preview Panel
   ───────────────────────────────────────────────────────────────────────────── */

.cnn-preview {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.cnn-preview__header {
    padding: 16px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
}

.cnn-preview__title {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.cnn-preview__content {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-soft) transparent;
}

.cnn-preview__content::-webkit-scrollbar {
    width: 6px;
}

.cnn-preview__content::-webkit-scrollbar-track {
    background: transparent;
}

.cnn-preview__content::-webkit-scrollbar-thumb {
    background: var(--border-default);
    border-radius: 3px;
}

/* Dataset Selector */
.dataset-selector {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.dataset-selector__label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dataset-selector select {
    flex: 1;
    padding: 6px 10px;
    font-size: 12px;
    font-family: var(--font-mono);
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.dataset-selector select:hover {
    border-color: var(--accent-soft);
}

.dataset-selector select:focus {
    outline: none;
    border-color: var(--accent);
}

/* Loading Progress */
.loading-progress {
    display: none;
    padding: 10px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.loading-progress__bar {
    height: 4px;
    background: var(--bg-void);
    border-radius: 2px;
    overflow: hidden;
}

.loading-progress__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 70%, white));
    border-radius: 2px;
    transition: width 0.2s ease;
    width: 0%;
}

/* Sample Preview */
.sample-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.sample-preview canvas {
    border: 2px solid var(--accent-soft);
    border-radius: var(--radius-md);
    background: var(--bg-void);
    box-shadow: 0 0 30px var(--accent-glow);
}

/* Prediction Bars */
.prediction-bars {
    width: 100%;
}

.prediction-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.prediction-bar__label {
    width: 60px;
    font-size: 11px;
    color: var(--text-secondary);
    text-align: right;
}

.prediction-bar__track {
    flex: 1;
    height: 18px;
    background: var(--bg-void);
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.prediction-bar__fill {
    height: 100%;
    background: var(--accent);
    border-radius: var(--radius-sm);
    transition: width 0.3s ease;
}

.prediction-bar__fill--top {
    background: linear-gradient(90deg, var(--color-success), var(--accent));
    box-shadow: 0 0 10px var(--accent-glow);
}

.prediction-bar__value {
    width: 45px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    text-align: left;
}

/* CNN Metrics */
.cnn-metrics {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    padding: 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.cnn-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.cnn-metric__label {
    font-size: 9px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cnn-metric__value {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.cnn-metric__value--loss {
    color: var(--color-warning);
}

.cnn-metric__value--accuracy {
    color: var(--color-success);
}

/* CNN Training Controls */
.cnn-training-controls {
    display: flex;
    gap: 6px;
}

.cnn-training-controls .btn {
    flex: 1;
}

/* CNN Controls Bar */
.cnn-controls-bar {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    padding: 10px 16px;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.cnn-controls-bar .control-section {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Hyperparameter Controls */
.hyperparam-group {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.hyperparam {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hyperparam__label {
    font-size: 10px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.hyperparam__input {
    width: 85px;
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.hyperparam__input:hover {
    border-color: var(--accent-soft);
}

.hyperparam__input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

/* TensorFlow.js Status */
.tf-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-secondary);
}

.tf-status__indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
}

.tf-status__indicator--ready {
    background: var(--color-success);
    box-shadow: 0 0 10px var(--color-success);
}

/* Backend Status Indicator */
.control-section--backend {
    display: flex;
    align-items: center;
    gap: 8px;
}

.backend-status {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-tertiary);
    transition: all 0.3s ease;
}

.backend-status--gpu {
    background: var(--color-success);
    box-shadow: 0 0 12px var(--color-success);
}

.backend-status--cpu {
    background: var(--color-warning);
    box-shadow: 0 0 12px var(--color-warning);
}

.backend-status--webgpu {
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.backend-status--loading {
    background: var(--text-tertiary);
    animation: pulse 1s ease-in-out infinite;
}

/* ═══════════════════════════════════════════════════════════════════════════
   CNN EXPLAINER MODAL STYLES - DARK LUXE
   ═══════════════════════════════════════════════════════════════════════════ */

/* Modal Backdrop */
.explainer-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(2, 3, 10, 0.9);
    backdrop-filter: blur(12px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.explainer-modal.active {
    display: flex;
    animation: backdrop-fade 0.3s ease-out;
}

/* Modal Content */
.explainer-modal__content {
    width: 100%;
    max-width: 950px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: 0 0 60px var(--accent-glow),
                0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: modal-enter 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Modal Header */
.explainer-modal__header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-card) 100%);
}

.explainer-modal__title {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

.explainer-modal__subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0;
    flex: 1;
}

.explainer-modal__close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
}

.explainer-modal__close:hover {
    background: var(--bg-elevated);
    color: var(--accent);
    border-color: var(--accent-soft);
}

/* Tab Navigation */
.explainer-tabs {
    display: flex;
    gap: 4px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    flex-shrink: 0;
    overflow-x: auto;
}

.explainer-tab-btn {
    padding: 10px 18px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

.explainer-tab-btn--active {
    color: var(--accent);
    background: var(--bg-elevated);
    border-color: var(--accent-soft);
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Tab Body */
.explainer-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: var(--bg-card);
}

/* Tab Panels */
.explainer-tab-panel {
    display: none;
}

.explainer-tab-panel--active {
    display: block;
    animation: fade-in 0.3s ease-out;
}

/* Grid Layouts */
.explainer-grid {
    display: grid;
    gap: 20px;
}

.explainer-grid--overview {
    grid-template-columns: 220px 1fr 220px;
}

@media (max-width: 768px) {
    .explainer-grid--overview {
        grid-template-columns: 1fr;
    }
}

/* Card */
.explainer-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: all 0.2s ease;
}

.explainer-card:hover {
    border-color: var(--accent-soft);
}

.explainer-card h3 {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin: 0 0 14px 0;
}

.explainer-card--wide {
    min-width: 250px;
}

.explainer-card canvas {
    display: block;
    margin: 0 auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
}

/* Layer Selector */
.explainer-layer-selector {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.explainer-layer-selector--top {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
}

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

.explainer-layer-selector select {
    flex: 1;
    padding: 8px 12px;
    font-size: 12px;
    font-family: var(--font-mono);
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.explainer-layer-selector select:hover {
    border-color: var(--accent-soft);
}

.explainer-layer-selector select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

/* Layer Info */
.explainer-layer-info {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--bg-void);
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    margin: 0;
    white-space: pre-wrap;
    line-height: 1.6;
}

/* Canvas Container */
.explainer-canvas-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-void);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 20px;
    min-height: 300px;
}

.explainer-canvas-container--wide {
    min-height: 250px;
}

.explainer-canvas-container canvas {
    display: block;
    border-radius: var(--radius-md);
}

/* Description Text */
.explainer-description {
    margin: 20px 0 0 0;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
}

/* Actions */
.explainer-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

/* Prediction Bars */
.explainer-pred-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.explainer-pred-bar__label {
    width: 75px;
    font-size: 11px;
    color: var(--text-secondary);
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.explainer-pred-bar__track {
    flex: 1;
    height: 16px;
    background: var(--bg-void);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
}

.explainer-pred-bar__fill {
    height: 100%;
    background: var(--accent);
    border-radius: var(--radius-sm);
    transition: width 0.3s ease;
}

.explainer-pred-bar__fill--correct {
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
}

.explainer-pred-bar__fill--top {
    background: var(--color-error);
}

.explainer-pred-bar__value {
    width: 50px;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-tertiary);
    text-align: left;
}

/* Prediction Summary */
.explainer-pred-summary {
    margin-top: 14px;
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
}

.explainer-pred-summary--correct {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.explainer-pred-summary--wrong {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Accent Button Style */
.btn--accent {
    background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, white));
    color: #0a0d17;
    border: none;
    font-weight: 700;
    box-shadow: 0 0 20px var(--accent-glow);
    text-shadow: none;
}

.btn--accent:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 0 30px var(--accent-glow);
}

/* Danger Button Style */
.btn--danger {
    background: var(--color-error) !important;
    color: white;
    border: none;
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
}

.btn--danger:hover {
    background: #dc2626 !important;
    box-shadow: 0 0 25px rgba(239, 68, 68, 0.4);
}

/* CNN Training Controls Adjustments */
.cnn-training-controls {
    display: flex;
    gap: 6px;
    align-items: center;
}

.cnn-training-controls .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.cnn-training-controls .btn-text {
    display: inline;
}

.cnn-training-controls .btn--large {
    padding: 10px 18px;
}

.cnn-training-controls .btn--secondary .btn-text,
.cnn-training-controls .btn--ghost .btn-text {
    display: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   INTERACTIVE DRAWING CANVAS STYLES
   ═══════════════════════════════════════════════════════════════════════════ */

.explainer-grid--draw {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 768px) {
    .explainer-grid--draw {
        grid-template-columns: 1fr;
    }
}

.draw-canvas-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-void);
    border: 2px solid var(--accent);
    border-radius: var(--radius-lg);
    box-shadow: 0 0 30px var(--accent-glow);
}

.draw-canvas-container canvas {
    cursor: crosshair;
    touch-action: none;
}

.draw-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 14px;
}

.draw-hint {
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
    margin-top: 10px;
}

.draw-preview {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.draw-preview__processed {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.draw-preview__label {
    font-size: 11px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.draw-preview__processed canvas {
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    image-rendering: pixelated;
}

.draw-preview__prediction {
    flex: 1;
}

/* ═══════════════════════════════════════════════════════════════════════════
   FLATTEN VISUALIZATION STYLES
   ═══════════════════════════════════════════════════════════════════════════ */

.explainer-grid--flatten {
    grid-template-columns: 1fr auto 100px;
    align-items: center;
    gap: 24px;
}

@media (max-width: 768px) {
    .explainer-grid--flatten {
        grid-template-columns: 1fr;
    }
}

.explainer-card--arrow {
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    border: none;
    padding: 0;
}

.flatten-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--accent);
    font-size: 12px;
    font-weight: 500;
}

.flatten-info {
    margin-top: 20px;
    padding: 14px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}

/* ═══════════════════════════════════════════════════════════════════════════
   SOFTMAX VISUALIZATION STYLES
   ═══════════════════════════════════════════════════════════════════════════ */

.explainer-grid--softmax {
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 20px;
}

@media (max-width: 768px) {
    .explainer-grid--softmax {
        grid-template-columns: 1fr;
    }
}

.softmax-formula {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.softmax-arrow {
    display: flex;
    justify-content: center;
    color: var(--accent);
}

.softmax-equation {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 20px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-lg);
}

.equation-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
}

.equation {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-primary);
}

.softmax-details {
    margin-top: 20px;
    padding: 14px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.3);
    border-radius: var(--radius-lg);
}

.softmax-details__row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.softmax-details__row:last-child {
    border-bottom: none;
}

.softmax-details__class {
    width: 70px;
    font-size: 12px;
    color: var(--text-tertiary);
}

.softmax-details__logit,
.softmax-details__exp,
.softmax-details__prob {
    width: 85px;
    font-family: var(--font-mono);
    font-size: 11px;
    text-align: right;
}

.softmax-details__logit {
    color: var(--color-warning);
}

.softmax-details__exp {
    color: var(--accent);
}

.softmax-details__prob {
    color: var(--color-success);
}

.softmax-details__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0 10px 0;
    border-bottom: 1px solid var(--border-default);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.softmax-details__sum {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-default);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
}

/* ═══════════════════════════════════════════════════════════════════════════
   INTERACTIVE TOOLTIPS
   ═══════════════════════════════════════════════════════════════════════════ */

.edu-tooltip {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: help;
}

.edu-tooltip__icon {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-tertiary);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 50%;
    transition: all 0.2s ease;
}

.edu-tooltip:hover .edu-tooltip__icon {
    color: var(--accent);
    background: rgba(168, 85, 247, 0.15);
    border-color: var(--accent-soft);
}

.edu-tooltip__content {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 260px;
    padding: 12px 14px;
    font-size: 11px;
    line-height: 1.6;
    color: var(--text-secondary);
    background: var(--bg-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 100;
}

.edu-tooltip__content::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--bg-elevated);
}

.edu-tooltip:hover .edu-tooltip__content {
    opacity: 1;
    visibility: visible;
}

/* Layer tooltip badges */
.layer-tooltip {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--text-tertiary);
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 50%;
    cursor: help;
    transition: all 0.2s ease;
}

.layer-tooltip:hover {
    color: var(--accent);
    background: rgba(168, 85, 247, 0.15);
    border-color: var(--accent-soft);
}

/* ═══════════════════════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════════════════════════ */

@media (max-width: 1200px) {
    .cnn-panel {
        grid-template-columns: 260px 1fr;
    }

    .cnn-preview {
        display: none;
    }
}

@media (max-width: 900px) {
    .cnn-panel {
        grid-template-columns: 1fr;
    }

    .cnn-sidebar {
        max-height: 220px;
    }

    .cnn-controls-bar {
        flex-wrap: wrap;
    }
}

@media (max-width: 600px) {
    .explainer-modal__content {
        max-height: 95vh;
        border-radius: var(--radius-lg);
    }

    .explainer-modal__header {
        padding: 16px;
    }

    .explainer-tabs {
        padding: 8px;
    }

    .explainer-tab-btn {
        padding: 8px 12px;
        font-size: 11px;
    }
}