/* 2×2 matrix chart · used by does-sharp-positioning-pay.md (frontmatter: css) */
/* ── 2×2 MATRIX (scoped; markup + hover JS unchanged from the original post) ── */
.matrixbox{position:relative;border:1px solid var(--rule);padding:12px 12px 4px}
.matrix-svg{width:100%;height:auto;display:block}
.mx-dot{fill:var(--text);opacity:.42;transition:opacity .12s}
.mx-dot:hover{opacity:1}
.mx-grid{stroke:var(--rule);stroke-width:1}
.mx-med{stroke:var(--dim);stroke-width:1;stroke-dasharray:5 4;opacity:.65}
/* SVG text sizes are viewBox units (1000 wide): ~20 units ≈ 12px at the 640px column */
.mx-lab{fill:var(--dim);font:700 20px 'Inter',sans-serif;letter-spacing:.5px}
.mx-tick{fill:var(--dim);font:400 20px 'Inter',sans-serif}
.mx-axt{fill:var(--dim);font:700 20px 'Inter',sans-serif;letter-spacing:.5px}
.mx-tip{position:absolute;left:0;top:0;pointer-events:none;transform:translate(-50%,calc(-100% - 14px));background:var(--text);color:var(--bg);padding:7px 11px;border-radius:7px;font-size:13px;font-weight:600;white-space:nowrap;opacity:0;transition:opacity .12s;z-index:6;box-shadow:0 6px 22px rgba(0,0,0,.22)}
.mx-tip.on{opacity:1}
.mx-tip small{display:block;font-weight:400;opacity:.72;margin-top:2px;font-size:12px;letter-spacing:.2px;text-transform:none}
.qlegend{display:grid;grid-template-columns:1fr 1fr;gap:10px 28px;margin-top:20px}
.qleg{border-top:1px solid var(--rule);padding-top:11px;font-size:14px;line-height:1.55;color:var(--dim)}
.qleg b{color:var(--text);font-weight:600;font-size:14px}
.qleg .qc{color:var(--dim);font-variant-numeric:tabular-nums}
@media(max-width:600px){ .qlegend{grid-template-columns:1fr} }