/**
 * Cross-Entropy Loss Visualizer Styles
 */

/* Loading overlay uses .loading-overlay--fullscreen from visualizations.css */

.loading-content {
    text-align: center;
    color: var(--viz-text-muted);
}

.loading-content p {
    margin-top: 15px;
    font-size: 14px;
}

/* ============================================
   Panel Header with Flex Layout
   ============================================ */
.panel-heading-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

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

.mode-toggle .btn {
    padding: 4px 10px;
    font-size: 12px;
}

.mode-toggle .btn.active {
    background: var(--viz-active-bg);
    border-color: var(--viz-active-border);
    color: var(--viz-active-border);
}

/* ============================================
   Loss Badge
   ============================================ */
/* .loss-badge extends .viz-badge from visualizations.css */
.loss-badge {
    transition: all 0.3s ease;
}

/* ============================================
   Histogram Canvas
   ============================================ */
.canvas-wrapper {
    width: 100%;
}

#histogram-canvas {
    display: block;
    width: 100%;
    cursor: default;
    background: var(--viz-canvas-bg);
}

.histogram-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 10px 0;
    font-size: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-box {
    width: 16px;
    height: 12px;
    border-radius: 2px;
}

.legend-expected .legend-box {
    background: transparent;
    border: 2px dashed #4CAF50;
}

.legend-correct .legend-box {
    background: rgba(76, 175, 80, 0.7);
    border: 2px solid #388E3C;
}

.legend-incorrect .legend-box {
    background: rgba(244, 67, 54, 0.7);
    border: 2px solid #d32f2f;
}

.legend-predicted-label {
    font-size: 13px;
    color: var(--viz-text);
}

.legend-predicted-label strong {
    font-family: var(--viz-mono-font);
    font-size: 14px;
}

[data-theme="gruvbox-dark"] .legend-expected .legend-box {
    border-color: var(--gruvbox-green);
}

[data-theme="gruvbox-dark"] .legend-correct .legend-box {
    background: rgba(152, 151, 26, 0.7);
    border-color: var(--gruvbox-green);
}

[data-theme="gruvbox-dark"] .legend-incorrect .legend-box {
    background: rgba(204, 36, 29, 0.7);
    border-color: var(--gruvbox-red);
}


/* ============================================
   Sample Gallery - Grid in sidebar
   ============================================ */
.sample-gallery-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-bottom: 15px;
}

.gallery-item {
    position: relative;
    cursor: pointer;
    border: 2px solid var(--viz-border);
    border-radius: 4px;
    padding: 4px;
    background: var(--viz-canvas-bg);
    transition: all 0.2s ease;
}

.gallery-item:hover {
    border-color: var(--viz-active-border);
    transform: scale(1.05);
}

.gallery-item.selected {
    border-color: var(--viz-active-border);
    background: var(--viz-active-bg);
    box-shadow: 0 0 8px rgba(0, 123, 255, 0.3);
}

.gallery-image {
    width: 100%;
    aspect-ratio: 1;
    image-rendering: pixelated;
    display: block;
}

/* Text mode gallery items */
.gallery-item-text {
    min-height: 58px;
}

.gallery-text {
    font-size: 9px;
    padding: 3px 2px;
    background: var(--viz-hover-bg);
    border-radius: 2px;
    text-align: center;
    word-break: break-word;
    min-height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
    color: var(--viz-text);
}

.gallery-tokens {
    font-family: var(--viz-mono-font);
    font-size: 8px;
    color: var(--viz-text-muted);
    text-align: center;
    padding: 2px 0;
    background: var(--viz-canvas-bg);
}

.gallery-item-text .gallery-label {
    position: static;
    display: block;
    margin-top: 2px;
    background: transparent;
    font-size: 9px;
    font-family: var(--viz-mono-font);
    text-align: center;
    color: var(--viz-active-border);
}

.gallery-label {
    position: absolute;
    bottom: 2px;
    right: 4px;
    font-size: 9px;
    font-weight: bold;
    color: var(--viz-text-muted);
    background: rgba(255, 255, 255, 0.85);
    padding: 1px 3px;
    border-radius: 2px;
}

[data-theme="gruvbox-dark"] .gallery-label {
    background: rgba(29, 32, 33, 0.85);
}

/* ============================================
   Timeline Controls - Sidebar layout
   ============================================ */
.timeline-section {
    margin-top: 10px;
}

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

.epoch-display {
    font-size: 13px;
    white-space: nowrap;
}

.epoch-display strong {
    font-family: var(--viz-mono-font);
}

.timeline-buttons {
    display: flex;
    gap: 4px;
    align-items: center;
}

.epoch-slider-full {
    width: 100%;
    margin: 0 0 10px 0;
}

.speed-control-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.speed-control-row label {
    font-size: 12px;
    margin: 0;
    color: var(--viz-text-muted);
}

.speed-control-row select {
    width: auto;
    padding: 3px 8px;
    font-size: 12px;
}

/* ============================================
   Manual Mode Controls - Sidebar layout
   ============================================ */
.manual-control-group {
    margin-bottom: 12px;
}

.manual-control-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 6px;
}

.control-hint {
    font-size: 11px;
    color: var(--viz-text-muted);
    margin: 0 0 10px 0;
}

.class-selector {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.class-btn {
    min-width: 28px;
    padding: 4px 8px;
    font-size: 12px;
}

.class-btn.active {
    background: var(--viz-active-bg);
    border-color: var(--viz-active-border);
    color: var(--viz-active-border);
}

.manual-buttons {
    display: flex;
    gap: 8px;
}

/* ============================================
   Loss Breakdown (in Math tab)
   ============================================ */
.loss-breakdown {
    max-height: 250px;
    overflow-y: auto;
}

/* .breakdown-mini-table extends .viz-breakdown-table from visualizations.css */
.breakdown-mini-table {
    font-size: 11px;
}

.breakdown-mini-table th,
.breakdown-mini-table td {
    padding: 4px 6px;
}

/* ============================================
   Info Panel Lists
   ============================================ */
.insight-list,
.interaction-list,
.formula-list {
    padding-left: 20px;
    font-size: 13px;
    line-height: 1.6;
}

.insight-list li,
.interaction-list li,
.formula-list li {
    margin-bottom: 6px;
}

.math-formula-display {
    text-align: center;
    padding: 12px;
    margin-bottom: 12px;
    background: var(--viz-hover-bg);
    border-radius: 4px;
}

.math-formula-display code {
    font-size: 15px;
    background: transparent;
}

.formula-note {
    font-size: 12px;
    color: var(--viz-text-muted);
    text-align: center;
    margin-bottom: 10px;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 992px) {
    .panel-heading-flex {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-controls {
        width: 100%;
        justify-content: space-between;
    }

    .sample-gallery-inline {
        flex-wrap: wrap;
    }

    .timeline-inline {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .loss-badge {
        font-size: 12px;
        padding: 3px 8px;
    }

    .histogram-legend {
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }

    .gallery-item {
        width: 38px;
    }

    .manual-controls-inline {
        flex-direction: column;
        align-items: flex-start;
    }
}