/* Knowledge Graph Explorer */

.knowledge-page {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

/* Source toggle bar */
.kg-source-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.kg-source-pills {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}

.kg-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: 14px;
    font-size: var(--text-sm);
    font-weight: 500;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.12s ease;
    white-space: nowrap;
}

.kg-pill:hover {
    background: var(--bg-hover);
    border-color: var(--border);
    color: var(--text-primary);
}

.kg-pill.active {
    background: rgba(74, 163, 161, 0.12);
    border-color: rgba(74, 163, 161, 0.4);
    color: var(--accent-blue);
}

.kg-pill.disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.kg-pill svg {
    flex-shrink: 0;
}

.kg-toolbar-right {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* Stats bar */
.kg-stats-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.kg-stat strong {
    color: var(--text-secondary);
    font-weight: 600;
}

.kg-stat-sep {
    opacity: 0.3;
}

/* Three-panel layout */
.kg-layout {
    display: grid;
    grid-template-columns: 260px 1fr 0px;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    transition: grid-template-columns 0.22s ease;
}

.kg-layout.insights-open {
    grid-template-columns: 260px 1fr 300px;
}

/* Left panel */
.kg-left-panel {
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-subtle);
    overflow-y: auto;
}

.kg-search-section {
    padding: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.kg-search-mode {
    display: flex;
    gap: 2px;
    margin-bottom: 8px;
    background: var(--bg-base);
    border-radius: 6px;
    padding: 2px;
}

.kg-mode-btn {
    flex: 1;
    padding: 4px 8px;
    border: none;
    border-radius: 4px;
    background: transparent;
    color: var(--text-tertiary);
    font-size: var(--text-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.12s ease;
}

.kg-mode-btn:hover {
    color: var(--text-secondary);
}

.kg-mode-btn.active {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.kg-search-input-wrap {
    display: flex;
    gap: 4px;
}

.kg-search-input-wrap .form-input {
    flex: 1;
    font-size: var(--text-sm);
    padding: 6px 10px;
}

.kg-search-results {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 200px;
    overflow-y: auto;
}

.kg-search-result {
    padding: 6px 8px;
    border-radius: 4px;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.12s ease;
}

.kg-search-result:hover {
    background: var(--bg-hover);
}

.kg-search-result .kg-result-title {
    font-weight: 500;
    color: var(--text-primary);
}

.kg-search-result .kg-result-score {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    float: right;
}

/* Legend */
.kg-legend-section {
    padding: 12px;
    flex: 1;
    overflow-y: auto;
}

.kg-legend-title {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    margin-bottom: 8px;
}

.kg-legend-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.kg-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-radius: 4px;
    font-size: var(--text-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.12s ease;
}

.kg-legend-item:hover {
    background: var(--bg-hover);
}

.kg-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.kg-legend-label {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.kg-legend-count {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Graph panel */
.kg-graph-panel {
    position: relative;
    overflow: hidden;
    background: var(--bg-base);
}

.kg-graph-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.kg-graph-empty {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    max-width: 360px;
}

.kg-graph-empty-icon {
    margin-bottom: 12px;
    color: var(--text-tertiary);
    opacity: 0.5;
}

.kg-graph-empty-icon svg {
    width: 48px;
    height: 48px;
}

.kg-graph-empty h3 {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.kg-graph-empty p {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin: 0 0 16px;
    line-height: 1.5;
}

.kg-graph-empty-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
}

#kg-graph-svg {
    display: block;
}

/* Graph controls */
.kg-graph-controls {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: flex;
    gap: 4px;
    z-index: 10;
}

.kg-graph-controls .btn {
    backdrop-filter: blur(8px);
    background: rgba(20, 17, 15, 0.85);
    border: 1px solid var(--border);
}

body[data-theme-mode="light"] .kg-graph-controls .btn {
    background: rgba(255, 255, 255, 0.92);
    color: var(--text-primary);
    border-color: rgba(134, 193, 224, 0.9);
    box-shadow: 0 10px 24px rgba(134, 193, 224, 0.18);
}

body[data-theme-mode="light"] .kg-graph-controls .btn:hover {
    background: #f7fcff;
    border-color: rgba(86, 176, 170, 0.85);
}

/* Node tooltip */
.kg-node-tooltip {
    position: absolute;
    padding: 10px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    font-size: var(--text-sm);
    pointer-events: auto;
    z-index: 100;
    min-width: 180px;
    max-width: 280px;
}

.kg-tooltip-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.kg-tooltip-type {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 6px;
}

.kg-tooltip-stats {
    display: flex;
    gap: 12px;
    margin-bottom: 6px;
}

.kg-tooltip-stat {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.kg-tooltip-stat strong {
    color: var(--text-secondary);
}

.kg-tooltip-connections {
    border-top: 1px solid var(--border-subtle);
    padding-top: 6px;
    margin-top: 4px;
}

.kg-tooltip-connections ul {
    margin: 0;
    padding-left: 18px;
}

.kg-tooltip-connections li {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    padding: 2px 0;
}

.kg-tooltip-actions {
    margin-top: 8px;
    display: flex;
    gap: 6px;
}

/* Right insights panel */
.kg-insights-panel {
    border-left: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.kg-insights-panel.collapsed {
    border-left: none;
}

.kg-insights-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}

.kg-insights-header h3 {
    font-size: var(--text-base);
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}

.kg-insights-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 14px;
}

.kg-insight-section {
    margin-bottom: 20px;
}

.kg-insight-section h4 {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    margin: 0 0 8px;
}

.kg-gap-item {
    padding: 8px 10px;
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 6px;
    margin-bottom: 6px;
}

.kg-gap-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.kg-gap-desc {
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    line-height: 1.4;
}

.kg-gap-score {
    font-size: var(--text-xs);
    color: var(--accent-orange);
    margin-top: 4px;
}

.kg-bridge-item {
    padding: 8px 10px;
    background: rgba(74, 163, 161, 0.05);
    border: 1px solid rgba(74, 163, 161, 0.1);
    border-radius: 6px;
    margin-bottom: 6px;
}

.kg-bridge-label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--accent-blue);
}

.kg-bridge-desc {
    font-size: var(--text-xs);
    color: var(--text-secondary);
    margin-top: 4px;
    line-height: 1.4;
}

/* Ingest status */
.kg-ingest-status {
    margin-top: 8px;
    font-size: var(--text-sm);
    padding: 6px 8px;
    border-radius: 4px;
}

.kg-ingest-status.success {
    background: rgba(111, 143, 58, 0.15);
    color: var(--accent-green);
}

.kg-ingest-status.error {
    background: rgba(194, 75, 75, 0.15);
    color: var(--accent-red);
}

/* D3 graph styles */
.kg-node {
    cursor: pointer;
}

.kg-node circle {
    stroke-width: 1.5px;
    transition: r 0.15s ease;
}

.kg-node:hover circle {
    stroke-width: 2.5px;
}

.kg-node text {
    font-size: var(--text-xs);
    fill: var(--text-secondary);
    pointer-events: none;
    text-anchor: middle;
    dominant-baseline: middle;
}

.kg-link {
    stroke-opacity: 0.4;
    transition: stroke-opacity 0.15s ease;
}

.kg-link.cross-source {
    stroke-dasharray: 4 2;
    stroke-opacity: 0.6;
}

.kg-link.highlighted {
    stroke-opacity: 0.9;
    stroke-width: 2px;
}

/* Mobile */
@media (max-width: 768px) {
    .kg-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
    }

    .kg-layout.insights-open {
        grid-template-columns: 1fr;
    }

    .kg-left-panel {
        border-right: none;
        border-bottom: 1px solid var(--border-subtle);
        max-height: 200px;
    }

    .kg-insights-panel {
        position: fixed;
        top: 0;
        right: 0;
        width: 300px;
        max-width: 90vw;
        height: 100vh;
        background: var(--bg-surface);
        z-index: 201;
        transform: translateX(100%);
        transition: transform 0.25s ease;
    }

    .kg-insights-panel.open {
        transform: translateX(0);
    }

    .kg-insights-panel.collapsed {
        border-left: none;
    }

    .kg-source-bar {
        flex-wrap: wrap;
        gap: 8px;
    }

    .kg-source-pills {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }
}

/* ─── Pepper Emoji in Salsa Pill ─────────────────────────── */
.kg-pepper {
    font-size: var(--text-base);
    margin-right: 2px;
    line-height: 1;
}

/* ─── Slide-Out Drawers (Help + Ingest) ──────────────────── */
.kg-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 200;
}
.kg-overlay.open {
    display: block;
}

.kg-drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 440px;
    max-width: 90vw;
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    z-index: 201;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.25s ease;
}
.kg-drawer.open {
    transform: translateX(0);
}

.kg-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.kg-drawer-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-primary);
}
.kg-drawer-title .lucide-icon {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}
.kg-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

/* Ingest form status messages */
.kg-ingest-status {
    margin-top: 12px;
    font-size: var(--text-sm);
    text-align: center;
    min-height: 20px;
}
.kg-ingest-status.success {
    color: var(--accent-green);
}
.kg-ingest-status.error {
    color: var(--accent-red);
}