.gr-equation{gap:clamp(1.5rem,3vw,2.25rem);margin-top:clamp(2.5rem,5vw,3.5rem);display:grid}.gr-equation-row{border:1px solid var(--h-line);border-radius:4px;gap:.5rem;padding:clamp(1.5rem,3vw,2.25rem);display:grid}.gr-equation-row.is-negative{border-color:#c4766066}.gr-equation-row.is-positive{background:#18a9870a;border-color:#18a98773}.gr-equation-terms{font-family:var(--font-display);letter-spacing:-.025em;flex-wrap:wrap;align-items:baseline;gap:.5rem .9rem;font-size:clamp(1.35rem,3.2vw,2.1rem);font-weight:700;line-height:1.15;display:flex}.gr-equation-terms i{opacity:.55;font-style:normal}.is-positive .gr-equation-terms i{color:var(--h-green-text);opacity:1}.gr-equation-note{color:var(--h-graphite);margin:0;font-size:.98rem;line-height:1.55}.gr-rail{border-top:1px solid var(--h-line-light);margin-top:clamp(2.5rem,5vw,4rem);display:grid}.gr-rail-item{border-bottom:1px solid var(--h-line-light);gap:.9rem;padding-block:clamp(2rem,4vw,3rem);display:grid}.gr-rail-index{color:var(--h-mint);font-family:var(--font-display);letter-spacing:.12em;font-size:.86rem;font-weight:700}.gr-rail-item h3{font-family:var(--font-display);letter-spacing:-.03em;margin:0;font-size:clamp(1.75rem,4.2vw,2.9rem);font-weight:700;line-height:1.05}.gr-rail-lead{color:#f5f1e8c7;max-width:44ch;margin:0;font-size:clamp(.98rem,1.5vw,1.1rem);line-height:1.6}.gr-rail-items{flex-wrap:wrap;gap:.4rem 1.1rem;margin:.35rem 0 0;padding:0;list-style:none;display:flex}.gr-rail-items li{color:var(--h-ivory);font-size:.95rem;font-weight:600;position:relative}.gr-rail-items li:not(:last-child):after{content:"·";color:var(--h-green);position:absolute;right:-.72rem}@media (min-width:900px){.gr-rail-item{grid-template-columns:4rem minmax(0,1fr) minmax(0,1.05fr);align-items:start;gap:1.5rem clamp(1.75rem,3.5vw,3rem)}.gr-rail-index{padding-top:.7rem}.gr-rail-body{gap:.9rem;display:grid}}.gr-chain{gap:0;max-width:34rem;margin-top:clamp(2.5rem,5vw,3.5rem);display:grid}.gr-chain-step{padding:0 0 clamp(1.75rem,3.5vw,2.5rem) 2.25rem;position:relative}.gr-chain-step:before{content:"";background:var(--h-green);border-radius:50%;width:9px;height:9px;position:absolute;top:.45rem;left:0}.gr-chain-step:after{content:"";background:linear-gradient(#18a98780,#18a9871f);width:1px;position:absolute;top:1.35rem;bottom:.2rem;left:4px}.gr-chain-step:last-child{padding-bottom:0}.gr-chain-step:last-child:after{display:none}.gr-chain-step strong{font-family:var(--font-display);letter-spacing:-.02em;font-size:clamp(1.1rem,2.2vw,1.5rem);font-weight:700;display:block}.gr-chain-step span{margin-top:.25rem;font-size:.98rem;line-height:1.55;display:block}.home-section:not(.is-ink) .gr-chain-step span{color:var(--h-graphite)}.is-ink .gr-chain-step span{color:#f5f1e8bf}.gr-metrics{flex-wrap:wrap;gap:.6rem 1.4rem;max-width:48rem;margin:clamp(2rem,4vw,2.75rem) 0 0;padding:0;list-style:none;display:flex}.gr-metrics li{font-family:var(--font-display);letter-spacing:-.02em;font-size:clamp(1.15rem,2.6vw,1.75rem);font-weight:700;position:relative}.gr-metrics li:not(:last-child):after{content:"·";color:var(--h-green-text);position:absolute;right:-.9rem}.gr-metrics-note{max-width:46ch;color:var(--h-graphite);margin:clamp(1.75rem,3.5vw,2.5rem) 0 0;font-size:.98rem;line-height:1.6}