.pdt-mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace}.pdt-input-row{grid-template-columns:repeat(2,minmax(260px,1fr))}.pdt-input{letter-spacing:0;min-height:2.7rem;padding:.65rem .8rem;font-size:1rem}.pdt-steps{margin-top:.5rem}.pdt-step{border-left:2px solid #0000;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:.35rem .65rem;margin-bottom:.45rem;padding:.45rem .55rem;font-size:.92rem;line-height:1.45;display:grid}.pdt-step.is-active{border-left-color:var(--accent);background:color-mix(in oklab, var(--accent) 8%, transparent);border-radius:6px}.pdt-controls{align-items:center;gap:.45rem;margin:.45rem 0 .35rem;display:flex}.pdt-ctrl{border:1px solid var(--border);background:var(--bg-surface);color:var(--text);cursor:pointer;border-radius:8px;padding:.42rem .75rem;font-size:.88rem;font-weight:650}.pdt-ctrl:hover{border-color:var(--accent)}.pdt-ctrl-primary{background:var(--accent);border-color:var(--accent);color:#fff}.pdt-pos{color:var(--text-dim);margin-left:auto;font-size:.82rem}.pdt-visual{margin-top:.55rem}.pdt-visual-title{margin-bottom:.35rem;font-weight:700}.pdt-grid{gap:.32rem;display:grid}.pdt-row{grid-template-columns:140px repeat(auto-fit,minmax(54px,1fr));align-items:center;gap:.3rem;display:grid}.pdt-k{color:var(--text-dim);white-space:nowrap;font-size:.84rem}.pdt-cell{text-align:center;background:var(--bg-surface);border:1px solid var(--border);border-radius:6px;padding:.2rem .3rem;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.86rem}.pdt-step-math,.pdt-step-rem{min-width:0}.pdt-step-math .katex,.pdt-step-rem .katex{white-space:normal}.pdt-step-rem{color:var(--text-dim);grid-column:2}@media (width<=720px){.pdt-input-row,.pdt-step{grid-template-columns:1fr}.pdt-step-rem{grid-column:1}}