/* classdoodle-diagrams.css - interaction & animation only for diagrams
   (paper look and base ink colours live in classdoodle-paper.css). */
.cd-diagram{position:relative;max-width:100%}
.cd-diagram>svg{display:block}

/* graph-paper rulings, ticks and tick labels drawn from real scales */
.cd-diagram[data-cd-diagram] svg g.cd-grid path{fill:none;stroke:#cfdcd6;stroke-width:.6}
.cd-diagram[data-cd-diagram] svg path.cd-ticks{fill:none;stroke:#3d4a46;stroke-width:1.2}
.cd-diagram[data-cd-diagram] svg .cd-tick-label{font-size:9.5px;fill:#5b6764}
.cd-diagram[data-cd-diagram] svg .cd-axis-name{font-style:italic;font-weight:700}
.cd-diagram[data-cd-diagram] svg .cd-y-title{font-size:10px;font-weight:700}
.cd-diagram[data-cd-diagram] svg .cd-guide{fill:none;stroke:#9aa9a4;stroke-width:1;stroke-dasharray:3 4}
.cd-diagram[data-cd-diagram] svg .cd-arc{fill:none;stroke:var(--coral,#d9644a);stroke-width:1.4}

/* progressive drawing - only once JS has armed the diagram */
.cd-armed [data-draw]{transition:opacity .35s ease,transform .35s ease}
.cd-armed [data-draw]:not(.cd-shown){opacity:0}
.cd-armed svg .cd-point circle{transform-box:fill-box;transform-origin:center;transition:transform .3s cubic-bezier(.3,1.6,.5,1)}
.cd-armed svg .cd-point:not(.cd-shown) circle{transform:scale(.2)}
.cd-armed .flow-step:not(.cd-shown){transform:translateY(6px)}
.cd-armed .flow-arrow:not(.cd-shown){transform:translateX(-6px)}

/* step-through highlight */
.cd-stepping svg .cd-current{filter:drop-shadow(0 0 3px rgba(242,177,52,.95))}
.cd-stepping .flow-step.cd-current,.cd-stepping tr.cd-current{outline:3px solid #f2b134;outline-offset:2px}

/* toolbar */
.cd-toolbar{display:flex;flex-wrap:wrap;gap:.4rem;margin:-.4rem 0 .5rem}
.cd-toolbar-group{display:flex;flex-wrap:wrap;gap:.4rem}
.cd-toolbar-group[hidden]{display:none}
.cd-btn{font:600 .78rem/1.2 inherit;font-family:inherit;padding:.35rem .7rem;border:1px solid #9fb2ab;border-radius:999px;background:#fff;color:#173b36;cursor:pointer}
.cd-btn:hover{background:#eef6f2}
.cd-btn:focus-visible{outline:3px solid #f2b134;outline-offset:2px}
.cd-btn[aria-pressed="true"]{background:#173b36;color:#fff;border-color:#173b36}
.cd-btn:disabled{opacity:.45;cursor:default}
.cd-caption{margin:.2rem 0 .8rem;font-size:.88rem;color:#173b36;min-height:0}
.cd-caption:empty{display:none}
.cd-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* read-off crosshair + tooltip */
.cd-readoff svg{touch-action:pan-y}
.cd-readoff [data-readoff]{cursor:crosshair;outline:none}
.cd-readoff [data-readoff]:focus-visible circle,.cd-readoff [data-readoff].cd-active circle{stroke:#f2b134;stroke-width:3}
.cd-crosshair{pointer-events:none;opacity:0;transition:opacity .15s}
.cd-crosshair.cd-on{opacity:1}
.cd-diagram[data-cd-diagram] svg .cd-cross-line{fill:none;stroke:#d9644a;stroke-width:1.2;stroke-dasharray:4 3}
.cd-diagram[data-cd-diagram] svg .cd-cross-ring{fill:none;stroke:#d9644a;stroke-width:1.5}
.cd-tip{position:absolute;transform:translate(-50%,calc(-100% - 12px));background:#173b36;color:#fff;font:600 .78rem/1.2 system-ui,sans-serif;padding:.3rem .55rem;border-radius:6px;white-space:nowrap;pointer-events:none;z-index:2;box-shadow:0 2px 6px rgba(0,0,0,.2)}
.cd-tip[hidden]{display:none}
.cd-tip.cd-tip-below{transform:translate(-50%,14px)}

/* show grid values */
.cd-values{display:none;pointer-events:none}
.cd-values-on .cd-values{display:inline}
.cd-diagram.cd-values-on[data-cd-diagram] svg g.cd-grid path{stroke:#9fbdb2;stroke-width:.8}
.cd-diagram[data-cd-diagram] svg .cd-dropline{fill:none;stroke:#2b7668;stroke-width:1;stroke-dasharray:2 3}
.cd-diagram[data-cd-diagram] svg .cd-value-label{font:700 9.5px sans-serif;fill:#2b7668}

/* economics explore mode */
.cd-exploring svg [data-curve]{cursor:ew-resize}
.cd-exploring svg [data-curve]:focus-visible path{stroke-width:4}
.cd-exploring svg [data-curve].cd-dragging path{stroke-width:3.5}
.cd-exploring svg [data-curve]{outline:none}
.cd-exploring svg [data-curve] path{opacity:.55}
.cd-diagram[data-cd-diagram] svg .cd-shift-path{fill:none;stroke:#a14a3a;stroke-width:2;stroke-dasharray:6 4}
.cd-diagram[data-cd-diagram] svg .cd-shift-arrow{fill:none;stroke:#a14a3a;stroke-width:1.6}
.cd-diagram[data-cd-diagram] svg .cd-shift-label{font:700 12px sans-serif;fill:#a14a3a}
.cd-explore-note{border:1px dashed #a14a3a;background:#fff7f3;padding:.55rem .75rem;margin:0 0 .8rem;font-size:.84rem;border-radius:6px}
.cd-explore-note[hidden]{display:none}
.cd-explore-note strong{color:#a14a3a}
.cd-explore-status{margin:.35rem 0;font-weight:600}
.cd-explore-status:empty{display:none}

@media (prefers-reduced-motion:reduce){
  .cd-armed [data-draw],.cd-armed svg .cd-point circle,.cd-crosshair{transition:none}
}
@media print{
  .cd-armed [data-draw]:not(.cd-shown){opacity:1}
  .cd-armed svg .cd-point:not(.cd-shown) circle,.cd-armed .flow-step,.cd-armed .flow-arrow{transform:none}
  .cd-toolbar,.cd-caption,.cd-tip,.cd-explore-note,.cd-crosshair,.cd-shifted,.cd-values{display:none!important}
}
.paper-figure figcaption .cd-meta{display:block;margin-top:.15rem}