.fs-story{--q1:#e0e3ff;--q2:#c3c8fb;--q3:#a1a6f5;--q4:#7c7eea;--q5:#5b57dc;--q6:#4339b5;--q7:#312e81}.dark .fs-story{--q1:#1e1b4b;--q2:#2e2a78;--q3:#3f3aa0;--q4:#5753c8;--q5:#7478f0;--q6:#a5abf7;--q7:#d6dafe}.fs-story section.module,.fs-story footer.method{scroll-margin-top:110px}.fs-story h3{font-family:var(--serif);margin:1.6em 0 .5em;font-size:1.3rem;font-weight:600;line-height:1.25}.fs-story header.story.wide{padding-block:40px 20px}.fs-story .ad-hero{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);align-items:center;gap:32px;display:grid}.fs-story .ad-hero>*{min-width:0}#ad-globe{aspect-ratio:1/.9;border:1px solid var(--rule);background:var(--bg);border-radius:6px;width:100%;position:relative;overflow:hidden}#ad-globe canvas{touch-action:pan-y;width:100%;height:100%;display:block}#ad-globe .cap{font-family:var(--sans);color:var(--soft);pointer-events:none;max-width:62%;font-size:12.5px;line-height:1.4;position:absolute;top:10px;left:12px}#ad-globe .hint{font-family:var(--mono);color:var(--muted);pointer-events:none;font-size:11px;position:absolute;bottom:10px;right:12px}.fs-story .ad-ramp{font-family:var(--mono);color:var(--soft);flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;font-size:11px;display:flex}.fs-story .ad-ramp i{width:18px;height:8px;display:inline-block}.fs-story .ad-stats{background:var(--rule);border:1px solid var(--rule);border-radius:6px;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;margin-top:32px;display:grid;overflow:hidden}.fs-story .ad-stats div{background:var(--bg);font-family:var(--sans);color:var(--soft);min-width:0;padding:12px 14px;font-size:13px;line-height:1.4}.fs-story .ad-stats b{font-family:var(--mono);color:var(--ink);font-variant-numeric:tabular-nums;margin-bottom:4px;font-size:24px;font-weight:500;display:block}.fs-story .ad-grid2{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;display:grid}.fs-story .ad-grid2>*{min-width:0}.fs-story .ad-model{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;margin-top:8px;display:grid}.fs-story .ad-model>*{min-width:0}.fs-story .ad-ctl{font-family:var(--sans);margin-bottom:16px}.fs-story .ad-ctl label{color:var(--ink);justify-content:space-between;gap:10px;font-size:14px;font-weight:500;display:flex}.fs-story .ad-ctl output{font-family:var(--mono);color:var(--indigo);white-space:nowrap;font-weight:400}.fs-story .ad-ctl .hint{color:var(--muted);margin-top:2px;font-size:12.5px;line-height:1.4}.fs-story .ad-ctl input[type=range]{width:100%;accent-color:var(--indigo);margin:6px 0 0}.fs-story .ad-result{font-family:var(--sans);border-top:1px solid var(--ink)}.fs-story .ad-result .row{border-bottom:1px solid var(--rule);color:var(--soft);justify-content:space-between;gap:10px;padding:8px 0;font-size:14px;display:flex}.fs-story .ad-result .row span:last-child{font-family:var(--mono);color:var(--ink)}.fs-story .ad-result .row.total{color:var(--ink);font-size:16px;font-weight:600}.fs-story .ad-result .row.total span:last-child{color:var(--indigo)}.fs-story .fig-note{font-family:var(--sans);color:var(--soft);margin:14px 0;font-size:14px;line-height:1.55}.fs-story .ad-callout{border-left:3px solid var(--indigo);color:var(--soft);padding:2px 0 2px 16px}.fs-story .tablewrap{margin-top:10px;overflow-x:auto}.fs-story table.ad-tbl{border-collapse:collapse;width:100%;font-family:var(--sans);font-size:13.5px}.fs-story table.ad-tbl th,.fs-story table.ad-tbl td{text-align:right;border-bottom:1px solid var(--rule);white-space:nowrap;padding:6px 8px}.fs-story table.ad-tbl th:first-child,.fs-story table.ad-tbl td:first-child{text-align:left}.fs-story table.ad-tbl th{color:var(--soft);border-bottom-color:var(--ink);font-size:12.5px;font-weight:600}.fs-story table.ad-tbl td{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--ink)}.fs-story table.ad-tbl td:first-child{font-family:var(--sans);color:var(--soft)}.fs-story .plot g.grid text,.fs-story .plot .tick text{stroke:none;font-family:var(--sans);fill:var(--muted);font-size:12px}.fs-story .plot g.grid line,.fs-story .plot .tick line{stroke:var(--rule)}.fs-story .plot g.grid{stroke:none}.fs-story .plot .sphere{fill:none;stroke:var(--rule)}.fs-story .mod-src a{color:var(--actual)}.fs-story .module.wide>.ad-grid2 .legend{margin-top:4px}@media (max-width:860px){.fs-story .ad-hero,.fs-story .ad-model,.fs-story .ad-grid2{grid-template-columns:minmax(0,1fr)}.fs-story .ad-stats{grid-template-columns:repeat(2,minmax(0,1fr))}.fs-story .ad-stats div:last-child{grid-column:1/-1}}@media (max-width:700px){.fs-story .plot{-webkit-overflow-scrolling:touch;overflow-x:auto}.fs-story .plot svg{min-width:640px}#ad-globe .cap{background:var(--bg);border-radius:4px;max-width:calc(100% - 24px);padding:2px 4px}}