._layout_1nzke_1{border:1px solid var(--border);background:var(--plot);border-radius:8px;grid-template-columns:minmax(0,1fr) minmax(260px,.65fr);margin:24px 0;display:grid;overflow:hidden}._visual_1nzke_10{min-width:0;padding:16px}._controls_1nzke_14{border-left:1px solid var(--border);flex-direction:column;gap:20px;min-width:0;padding:24px;display:flex}._controls_1nzke_14 p,._caption_1nzke_23{color:var(--muted);font-size:14px;line-height:1.8}._controls_1nzke_14 label{font-size:14px}._controls_1nzke_14 select{background:var(--plot);color:var(--ink);border:1px solid var(--border);border-radius:4px;width:100%;min-height:44px;padding:10px}._plot_1nzke_40{width:100%;height:auto;display:block;overflow:hidden}._plot_1nzke_40 text{fill:var(--muted);font:13px var(--font-sans)}._grid_1nzke_50{stroke:var(--grid);stroke-width:1px}._axis_1nzke_54{stroke:var(--muted);stroke-width:1.2px}._curve_1nzke_58{fill:none;stroke:var(--accent);stroke-width:2.5px}._projection_1nzke_63{fill:none;stroke:var(--gold);stroke-width:2px;stroke-dasharray:5 4}._dot_1nzke_69{fill:var(--gold);stroke:var(--plot);stroke-width:2px}._retained_1nzke_74{fill:var(--accent);stroke:var(--plot);stroke-width:1.5px}._secant_1nzke_79{stroke:var(--gold);stroke-width:2px}._tangent_1nzke_83{stroke:var(--accent);stroke-width:2px;stroke-dasharray:7 5}._tableWrap_1nzke_88{margin-top:15px;overflow-x:auto}._table_1nzke_88{border-collapse:collapse;width:100%;font:13px var(--font-mono);text-align:right}._table_1nzke_88 caption{text-align:left;color:var(--muted);font:13px var(--font-sans);margin-bottom:10px}._table_1nzke_88 td,._table_1nzke_88 th{border-bottom:1px solid var(--border);padding:6px 9px}._table_1nzke_88 tr[data-current=true]{background:var(--soft);color:var(--gold)}._table_1nzke_88 button{border:1px solid var(--border);cursor:pointer;border-radius:3px;min-height:32px;padding:5px 8px}._formula_1nzke_120{background:var(--soft);border-left:2px solid var(--accent);max-width:100%;margin:18px 0;padding:14px 16px;font-size:17px;overflow-x:auto}._formula_1nzke_120 .math-block{margin:0}._readout_1nzke_132{font:14px/1.9 var(--font-mono);overflow-wrap:anywhere;display:block}._legend_1nzke_137{color:var(--muted);flex-wrap:wrap;gap:12px;margin-top:8px;font-size:13px;display:flex}._legend_1nzke_137 span:first-child{color:var(--gold)}._legend_1nzke_137 span:last-child{color:var(--accent)}._example_1nzke_151{background:var(--soft);border-left:2px solid var(--gold);margin:24px 0;padding:22px}._example_1nzke_151 h3{margin-bottom:12px;font-size:18px;font-weight:500}._example_1nzke_151 p,._answer_1nzke_163 p{max-width:78ch;color:var(--muted);margin:12px 0;font-size:15px;line-height:1.9}._answer_1nzke_163{margin:24px 0}._answer_1nzke_163 summary{color:var(--accent);cursor:pointer;padding:12px 0}._buttons_1nzke_178{flex-wrap:wrap;gap:8px;display:flex}._buttons_1nzke_178 button{border:1px solid var(--border);cursor:pointer;border-radius:4px;min-height:44px;padding:10px 12px;font-size:13px}._buttons_1nzke_178 button[aria-pressed=true]{border-color:var(--accent);color:var(--accent)}._buttons_1nzke_178 button:disabled{opacity:.45;cursor:default}@media (max-width:800px){._layout_1nzke_1{grid-template-columns:1fr}._controls_1nzke_14{border-left:0;border-top:1px solid var(--border);padding:20px}._visual_1nzke_10{padding:8px}._plot_1nzke_40 text{font-size:15px}._formula_1nzke_120{padding:12px 8px;font-size:14px}._example_1nzke_151{padding:18px}}._distanceProof_1nzke_223{width:min(100%,320px);margin:20px auto;display:block}._distanceProof_1nzke_223 text{fill:var(--ink);font:16px var(--font-sans)}