/* ==========================================================================
   Interactive Figures - Distill/colah-style
   ========================================================================== */

/* --------------------------------------------------------------------------
   Figure Container
   -------------------------------------------------------------------------- */
.interactive-figure {
    margin: 2em 0;
    padding: 1.5em calc(50vw - var(--measure, 38em) / 2 + 1rem);
    background: #fff;
    border: none;
    border-radius: 0;
    font-family: var(--font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif);
    width: 100vw;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.interactive-figure > * {
    max-width: var(--measure, 38em);
}

.interactive-figure figcaption {
    font-size: 0.9em;
    color: var(--color-text-muted, rgba(0, 0, 0, 0.5));
    margin-top: 1em;
    padding-top: 1em;
    border-top: 1px solid var(--color-code-border, #e5e0d8);
}

/* --------------------------------------------------------------------------
   Controls
   -------------------------------------------------------------------------- */
.figure-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
    margin-bottom: 1em;
    font-size: 0.85em;
}

.figure-control {
    display: flex;
    align-items: center;
    gap: 0.5em;
}

.figure-control label {
    color: var(--color-text-muted, rgba(0, 0, 0, 0.5));
    font-size: 0.9em;
}

.figure-control select,
.figure-control input[type="number"] {
    font-family: inherit;
    font-size: inherit;
    padding: 0.35em 0.5em;
    border: 1px solid var(--color-code-border, #e5e0d8);
    border-radius: 3px;
    background: var(--color-bg, #faf9f5);
    color: var(--color-text, rgba(0, 0, 0, 0.8));
}

.figure-control select:focus,
.figure-control input:focus {
    outline: none;
    border-color: var(--color-accent, hsl(200, 50%, 25%));
}

.figure-control input[type="checkbox"] {
    width: 1em;
    height: 1em;
}

.figure-control input[type="number"] {
    width: 6em;
}

/* Button controls */
.figure-buttons {
    display: flex;
    gap: 0.5em;
}

.figure-btn {
    font-family: inherit;
    font-size: 0.85em;
    padding: 0.35em 0.75em;
    border: 1px solid var(--color-code-border, #e5e0d8);
    border-radius: 3px;
    background: var(--color-bg, #faf9f5);
    color: var(--color-text, rgba(0, 0, 0, 0.8));
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.figure-btn:hover {
    background: #fff;
    border-color: var(--color-accent, hsl(200, 50%, 25%));
}

.figure-btn:active {
    background: var(--color-code-bg, #f4f1eb);
}

/* --------------------------------------------------------------------------
   Plot Container
   -------------------------------------------------------------------------- */
.figure-plot-container {
    position: relative;
}

.figure-plot {
    width: 100%;
    display: block;
}

.figure-plot-wrapper {
    margin-bottom: 0.75em;
}

.figure-plot-wrapper:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   SVG Styling
   -------------------------------------------------------------------------- */
.figure-plot .axis path,
.figure-plot .axis line {
    stroke: #ccc;
    stroke-width: 1px;
    shape-rendering: crispEdges;
}

.figure-plot .axis text {
    font-family: var(--font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif);
    font-size: 11px;
    fill: var(--color-text-muted, rgba(0, 0, 0, 0.5));
}

.figure-plot .axis-label {
    font-family: var(--font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif);
    font-size: 11px;
    fill: var(--color-text-muted, rgba(0, 0, 0, 0.5));
}

.figure-plot .grid line {
    stroke: #eee;
    stroke-width: 1px;
    shape-rendering: crispEdges;
}

.figure-plot .grid path {
    display: none;
}

/* Line styles */
.figure-plot .line {
    fill: none;
    stroke-width: 1.5px;
}

.figure-plot .line-a {
    stroke: #4a7c59;  /* Sage green */
}

.figure-plot .line-b {
    stroke: #7a4a4a;  /* Muted burgundy */
}

.figure-plot .line-diff {
    stroke: #4a5a7a;  /* Steel blue */
}

.figure-plot .line-it {
    stroke: #6a5a4a;  /* Warm brown */
}

.figure-plot .line-loss {
    stroke: #4a7c59;  /* Sage green */
}

.figure-plot .line-grad {
    stroke: #7a4a4a;  /* Muted burgundy */
}

.figure-plot .line-grad-fd {
    stroke: #7a4a4a;
    stroke-dasharray: 4, 3;
    opacity: 0.7;
}

/* Step plot styling */
.figure-plot .step-line {
    fill: none;
    stroke-width: 2px;
}

/* Markers */
.figure-plot .event-marker {
    stroke-width: 1.5px;
    stroke-dasharray: 4, 3;
}

.figure-plot .event-marker-a {
    stroke: #4a7c59;
}

.figure-plot .event-marker-b {
    stroke: #7a4a4a;
}

.figure-plot .contact-dot {
    r: 3px;
}

/* Hover elements */
.figure-plot .hover-line {
    stroke: rgba(0, 0, 0, 0.3);
    stroke-width: 1px;
    stroke-dasharray: 3, 2;
    pointer-events: none;
}

.figure-plot .hover-overlay {
    fill: transparent;
}

/* Iteration bands */
.figure-plot .it-band {
    fill: rgba(0, 0, 0, 0.04);
}

.figure-plot .it-band-odd {
    fill: rgba(0, 0, 0, 0.02);
}

/* --------------------------------------------------------------------------
   Legend
   -------------------------------------------------------------------------- */
.figure-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1em;
    font-size: 0.8em;
    margin-bottom: 0.75em;
}

.figure-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4em;
}

.figure-legend-swatch {
    width: 16px;
    height: 3px;
    border-radius: 1px;
}

.figure-legend-swatch.line-a {
    background: #4a7c59;
}

.figure-legend-swatch.line-b {
    background: #7a4a4a;
}

.figure-legend-swatch.line-diff {
    background: #4a5a7a;
}

.figure-legend-swatch.line-it {
    background: #6a5a4a;
}

.figure-legend-swatch.line-loss {
    background: #4a7c59;
}

.figure-legend-swatch.line-grad {
    background: #7a4a4a;
}

.figure-legend-swatch.dashed {
    background: repeating-linear-gradient(
        90deg,
        #7a4a4a,
        #7a4a4a 4px,
        transparent 4px,
        transparent 7px
    );
}

/* --------------------------------------------------------------------------
   Tooltip
   -------------------------------------------------------------------------- */
.figure-tooltip {
    position: absolute;
    pointer-events: none;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid var(--color-code-border, #e5e0d8);
    border-radius: 3px;
    padding: 0.5em 0.75em;
    font-size: 0.8em;
    line-height: 1.5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 100;
    max-width: 200px;
    opacity: 0;
    transition: opacity 0.15s;
}

.figure-tooltip.visible {
    opacity: 1;
}

.figure-tooltip-row {
    display: flex;
    justify-content: space-between;
    gap: 1em;
}

.figure-tooltip-label {
    color: var(--color-text-muted, rgba(0, 0, 0, 0.5));
}

.figure-tooltip-value {
    font-family: var(--font-code, "SF Mono", Consolas, monospace);
    font-size: 0.95em;
}

.figure-tooltip-value.color-a {
    color: #4a7c59;
}

.figure-tooltip-value.color-b {
    color: #7a4a4a;
}

/* --------------------------------------------------------------------------
   Error State
   -------------------------------------------------------------------------- */
.figure-error {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    background: #fef8f8;
    border: 1px solid #e5d0d0;
    border-radius: 4px;
    color: #8a4a4a;
    font-size: 0.9em;
    text-align: center;
    padding: 2em;
}

.figure-error-icon {
    font-size: 1.5em;
    margin-bottom: 0.5em;
}

/* --------------------------------------------------------------------------
   Loading State
   -------------------------------------------------------------------------- */
.figure-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--color-text-muted, rgba(0, 0, 0, 0.5));
    font-size: 0.9em;
}

/* --------------------------------------------------------------------------
   Reduction Order Visualizer - Specific Styles
   -------------------------------------------------------------------------- */
.reduction-panel {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5em;
}

@media (max-width: 600px) {
    .reduction-panel {
        grid-template-columns: 1fr;
    }
}

.reduction-table-container {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--color-code-border, #e5e0d8);
    border-radius: 3px;
}

.reduction-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85em;
    font-family: var(--font-code, "SF Mono", Consolas, monospace);
}

.reduction-table th,
.reduction-table td {
    padding: 0.4em 0.6em;
    text-align: right;
    border-bottom: 1px solid #eee;
}

.reduction-table th {
    font-family: var(--font-heading, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif);
    font-weight: 500;
    background: var(--color-code-bg, #f4f1eb);
    position: sticky;
    top: 0;
}

.reduction-table tbody tr:hover {
    background: rgba(0, 0, 0, 0.02);
}

.reduction-result {
    padding: 1em;
    background: var(--color-code-bg, #f4f1eb);
    border-radius: 4px;
}

.reduction-result-label {
    font-size: 0.85em;
    color: var(--color-text-muted, rgba(0, 0, 0, 0.5));
    margin-bottom: 0.25em;
}

.reduction-result-value {
    font-family: var(--font-code, "SF Mono", Consolas, monospace);
    font-size: 1.1em;
}

.reduction-decision {
    margin-top: 1em;
    padding: 0.75em 1em;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
}

.reduction-decision.stop {
    background: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.reduction-decision.continue {
    background: #fff3e0;
    color: #ef6c00;
    border: 1px solid #ffe0b2;
}

.reduction-margin-bar {
    height: 24px;
    background: #eee;
    border-radius: 3px;
    margin-top: 0.75em;
    position: relative;
    overflow: hidden;
}

.reduction-margin-fill {
    height: 100%;
    transition: width 0.3s;
}

.reduction-margin-fill.under {
    background: linear-gradient(90deg, #81c784, #4caf50);
}

.reduction-margin-fill.over {
    background: linear-gradient(90deg, #ffb74d, #ff9800);
}

.reduction-tol-marker {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #333;
}

/* Addends input */
.reduction-addends {
    margin-top: 1em;
}

.reduction-addends textarea {
    width: 100%;
    height: 80px;
    font-family: var(--font-code, "SF Mono", Consolas, monospace);
    font-size: 0.85em;
    padding: 0.5em;
    border: 1px solid var(--color-code-border, #e5e0d8);
    border-radius: 3px;
    resize: vertical;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
    .interactive-figure {
        padding: 1em 1rem;
    }

    .figure-controls {
        flex-direction: column;
        gap: 0.75em;
    }

    .figure-control {
        width: 100%;
    }

    .figure-control select {
        flex: 1;
    }

    .figure-tooltip {
        max-width: 160px;
        font-size: 0.75em;
    }
}