/* SgChartManager — chart plotting overlay for semantic graph nodes */

/* ── Chart button on nodes ──────────────────────────────────────────── */
.d3sg-chart-btn {
    opacity: 0;
    cursor: pointer;
    pointer-events: all;
    transition: opacity 0.12s ease-out;
}
.d3sg-node:hover .d3sg-chart-btn {
    opacity: 0.7;
}
.d3sg-chart-btn:hover {
    opacity: 1 !important;
}

/* ── Chart box (inline or pinned) ───────────────────────────────────── */
.sgc-chart-box {
    width: 340px;
    background: rgba(10, 12, 26, 0.92);
    border: 1px solid rgba(110, 124, 180, 0.35);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    transition: box-shadow 0.2s ease;
}
.sgc-chart-box:hover {
    box-shadow: 0 6px 28px rgba(0, 0, 0, 0.55);
}

.sgc-chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-bottom: 1px solid rgba(110, 124, 180, 0.2);
    gap: 8px;
    min-height: 36px;
}
.sgc-chart-box:not(.sgc-pinned) .sgc-chart-header {
    cursor: grab;
}
.sgc-chart-box:not(.sgc-pinned) .sgc-chart-header:active {
    cursor: grabbing;
}

.sgc-chart-title {
    font-size: 0.78rem;
    color: #dde6ff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}
.sgc-chart-title .katex {
    font-size: 0.85em;
}

.sgc-chart-controls {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    position: relative;
}

.sgc-x-select {
    background: rgba(30, 40, 70, 0.8);
    border: 1px solid rgba(110, 124, 180, 0.3);
    border-radius: 4px;
    color: #aebbd1;
    font-size: 0.7rem;
    padding: 2px 4px;
    cursor: pointer;
    outline: none;
    max-width: 70px;
}
.sgc-x-select:hover {
    border-color: rgba(110, 124, 180, 0.6);
    color: #dde6ff;
}
.sgc-x-select:focus {
    border-color: #42a5f5;
}

.sgc-btn {
    background: none;
    border: 1px solid rgba(110, 124, 180, 0.25);
    border-radius: 4px;
    color: #7e8aa3;
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    padding: 0;
    transition: all 0.12s ease;
}
.sgc-btn:hover {
    background: rgba(110, 124, 180, 0.15);
    border-color: rgba(110, 124, 180, 0.5);
    color: #dde6ff;
}

.sgc-pin-btn {
    font-size: 0.65rem;
}
.sgc-pin-btn.sgc-pin-active {
    background: rgba(66, 165, 245, 0.25);
    border-color: rgba(66, 165, 245, 0.5);
    color: #42a5f5;
}

.sgc-close-btn {
    font-size: 1rem;
    line-height: 1;
}

.sgc-canvas-wrap {
    position: relative;
    height: 200px;
    padding: 6px 8px 8px 4px;
}
.sgc-canvas-wrap canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ── Pinned charts panel — top of viewport, stacks left→right ─────── */
.sgc-pinned-panel {
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    z-index: 30;
    pointer-events: none;
}
.sgc-pinned-panel:empty {
    display: none;
}

.sgc-chart-box.sgc-pinned {
    pointer-events: all;
    flex-shrink: 0;
    position: relative;
}

/* ── Resize handle for pinned charts ───────────────────────────────── */
.sgc-resize-handle {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 18px;
    height: 18px;
    cursor: nwse-resize;
    z-index: 5;
}
.sgc-resize-handle::after {
    content: '';
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 8px;
    height: 8px;
    border-right: 2px solid rgba(110, 124, 180, 0.4);
    border-bottom: 2px solid rgba(110, 124, 180, 0.4);
}
.sgc-resize-handle:hover::after {
    border-color: rgba(140, 160, 220, 0.7);
}

/* ── Slider panel — bottom-left ───────────────────────────────────── */
.sgc-slider-panel {
    position: absolute;
    left: 8px;
    bottom: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px 12px;
    background: rgba(10, 12, 26, 0.82);
    border: 1px solid rgba(110, 124, 180, 0.35);
    border-radius: 6px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 25;
    min-width: 200px;
    max-width: 300px;
    pointer-events: all;
}
.sgc-slider-panel.hidden {
    display: none;
}

.sgc-slider-title {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(210, 218, 245, 0.55);
    margin-bottom: 2px;
}

.sgc-slider-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sgc-slider-label {
    font-size: 0.78rem;
    color: #aebbd1;
    min-width: 28px;
    text-align: right;
    flex-shrink: 0;
}
.sgc-slider-label .katex {
    font-size: 0.85em;
}

.sgc-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    background: rgba(110, 124, 180, 0.25);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}
.sgc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #42a5f5;
    border: 2px solid rgba(10, 12, 26, 0.8);
    cursor: pointer;
    transition: background 0.12s;
}
.sgc-slider::-webkit-slider-thumb:hover {
    background: #64b5f6;
}
.sgc-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #42a5f5;
    border: 2px solid rgba(10, 12, 26, 0.8);
    cursor: pointer;
}

.sgc-slider-value {
    font-size: 0.7rem;
    color: #7e8aa3;
    min-width: 42px;
    text-align: left;
    font-variant-numeric: tabular-nums;
}

/* ── Legend panel — bottom-right ──────────────────────────────────── */
.sgc-legend-panel {
    position: absolute;
    right: 8px;
    bottom: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 8px 10px;
    background: rgba(10, 12, 26, 0.82);
    border: 1px solid rgba(110, 124, 180, 0.35);
    border-radius: 6px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 25;
    pointer-events: none;
}
.sgc-legend-panel.hidden {
    display: none;
}

.sgc-legend-title {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(210, 218, 245, 0.55);
    margin-bottom: 2px;
}

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

.sgc-legend-swatch {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
}

.sgc-legend-name {
    font-size: 0.72rem;
    color: rgba(210, 218, 245, 0.9);
}
.sgc-legend-name .katex {
    font-size: 0.85em;
}

/* ── Code button (show mathjs script) ────────────────────────────── */
.sgc-code-btn {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.65rem;
    letter-spacing: -0.03em;
}

/* ── Script tooltip popover ──────────────────────────────────────── */
.sgc-script-tooltip {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    padding: 8px 10px;
    background: rgba(18, 22, 40, 0.96);
    border: 1px solid rgba(110, 124, 180, 0.4);
    border-radius: 6px;
    color: #b8c8e8;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.72rem;
    line-height: 1.45;
    white-space: pre-wrap;
    word-break: break-all;
    max-width: 320px;
    min-width: 140px;
    z-index: 50;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
    pointer-events: auto;
}

/* ── Error state in canvas area ──────────────────────────────────── */
.sgc-canvas-wrap.sgc-chart-error {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 83, 80, 0.06);
    border-top: 1px solid rgba(239, 83, 80, 0.15);
}

.sgc-error-message {
    padding: 16px 20px;
    color: rgba(239, 130, 128, 0.85);
    font-size: 0.75rem;
    line-height: 1.5;
    text-align: center;
    max-width: 90%;
}