.rpa-article{--rpa-glass:color-mix(in oklab, var(--panel) 72%, transparent);--rpa-line:color-mix(in oklab, var(--a2) 28%, var(--line));background:radial-gradient(circle at 84% 8%,color-mix(in oklab,var(--a5) 26%,transparent),transparent 34rem),radial-gradient(circle at 8% 48%,color-mix(in oklab,var(--a2) 16%,transparent),transparent 42rem),var(--bg)}.rpa-article main{z-index:1;position:relative}.rpa-hero{max-width:1120px;padding:10rem var(--pad) 4rem;margin:0 auto}.rpa-hero .kicker,.rpa-label{color:var(--a2)}.rpa-hero h1{letter-spacing:0;max-width:1080px;margin-top:1.3rem;font-size:clamp(3.15rem,7.3vw,7rem);line-height:.93}.rpa-lead{max-width:820px;color:var(--ink);margin-top:2rem;font-size:clamp(1.2rem,2vw,1.7rem);line-height:1.55}.rpa-intro{max-width:1120px;padding:1rem var(--pad) 5rem;grid-template-columns:1fr 1fr;gap:2rem;margin:0 auto;display:grid}.rpa-intro p{color:var(--muted);margin:0;font-size:1.08rem;line-height:1.85}.rpa-intro p:first-child{color:var(--ink);font-size:clamp(1.45rem,2.5vw,2rem);line-height:1.25}.rpa-section{max-width:1120px;padding:5rem var(--pad);border-top:1px solid var(--line);margin:0 auto}.rpa-copy{max-width:840px}.rpa-copy h2{letter-spacing:0;margin-bottom:2rem;font-size:clamp(2.3rem,4.8vw,4.7rem);line-height:1}.rpa-copy p{color:var(--muted);font-size:1.05rem;line-height:1.9}.rpa-copy ul{gap:.75rem;margin:2rem 0 0;padding:0;list-style:none;display:grid}.rpa-copy li{border:1px solid var(--rpa-line);background:var(--rpa-glass);color:var(--muted);border-radius:8px;grid-template-columns:2.4rem 1fr;gap:.8rem;padding:1.2rem;line-height:1.7;display:grid}.rpa-copy li span{color:var(--a2);font:.74rem var(--font-mono)}.rpa-visual{border:1px solid var(--rpa-line);background:linear-gradient(135deg,var(--rpa-glass),color-mix(in oklab,var(--a5) 11%,transparent));border-radius:8px;margin:3rem 0 0;padding:clamp(1.4rem,4vw,3.2rem);overflow:hidden}.rpa-label{font:650 .72rem/1.4 var(--font-mono);letter-spacing:.16em;text-transform:uppercase;margin-bottom:2rem}.rpa-caption{color:var(--muted);font:.78rem/1.7 var(--font-mono);margin:2rem 0 0}.rpa-reality{grid-template-columns:1fr auto 1fr;align-items:stretch;gap:1rem;display:grid}.rpa-reality>div{border:1px solid var(--line);background:var(--rpa-glass);border-radius:8px;padding:1.2rem}.rpa-reality>div:last-child{border-color:var(--a6);box-shadow:inset 0 0 2rem color-mix(in oklab,var(--a6) 8%,transparent)}.rpa-reality>i{color:var(--a2);font:2rem var(--font-mono);align-self:center}.rpa-reality strong{color:var(--ink);margin-bottom:1.3rem;font-size:1.2rem;display:block}.rpa-reality span{color:var(--muted);margin-top:.55rem;display:block}.rpa-equation{grid-template-columns:repeat(7,auto);align-items:center;gap:.7rem;display:grid}.rpa-equation>div{border:1px solid var(--line);background:var(--rpa-glass);min-height:8rem;color:var(--ink);text-align:center;border-radius:8px;place-items:center;padding:1rem;display:grid}.rpa-equation>div:last-child{border-color:var(--a6);background:color-mix(in oklab,var(--a6) 9%,var(--panel))}.rpa-equation b{color:var(--a2);font:1.5rem var(--font-mono)}.rpa-replan{grid-template-columns:repeat(4,1fr);gap:.75rem;display:grid}.rpa-replan>div{border:1px solid var(--line);background:var(--rpa-glass);border-radius:8px;min-height:9rem;padding:1rem;position:relative}.rpa-replan>div:not(:last-child):after{content:"→";z-index:2;color:var(--a2);position:absolute;top:50%;right:-.75rem}.rpa-replan span,.rpa-ladder span{color:var(--a2);font:.72rem var(--font-mono)}.rpa-replan strong,.rpa-ladder strong{color:var(--ink);margin-top:1.4rem;display:block}.rpa-ladder{grid-template-columns:repeat(3,1fr);align-items:end;gap:.75rem;display:grid}.rpa-ladder>div{border:1px solid var(--line);background:var(--rpa-glass);border-radius:8px;padding:1rem}.rpa-ladder>div:first-child{min-height:7rem}.rpa-ladder>div:nth-child(2){min-height:9rem}.rpa-ladder>div:nth-child(3){border-color:var(--a6);min-height:11rem}.rpa-guardrail{border-left:.3rem solid var(--a2);background:color-mix(in oklab,var(--a2) 7%,transparent);color:var(--ink);margin-top:1rem;padding:1.1rem}.rpa-signature{color:var(--ink);margin:0;font-size:clamp(1.6rem,3vw,2.6rem);font-weight:650;line-height:1.2}.rpa-cta{max-width:1120px;padding:clamp(3rem,7vw,6rem) var(--pad);text-align:center;border-block:1px solid var(--rpa-line);background:radial-gradient(circle at 50% 0,color-mix(in oklab,var(--a5) 20%,transparent),transparent 70%);margin:2rem auto 5rem}.rpa-cta h2{letter-spacing:0;font-size:clamp(2.4rem,5.4vw,5.2rem);line-height:1}.rpa-cta p{max-width:680px;color:var(--muted);margin:1.3rem auto 2rem}@media(max-width:900px){.rpa-intro,.rpa-reality,.rpa-equation,.rpa-replan,.rpa-ladder{grid-template-columns:1fr}.rpa-reality>i,.rpa-equation b{text-align:center;transform:rotate(90deg)}.rpa-replan>div:not(:last-child):after{content:"↓";top:auto;bottom:-.9rem;right:50%}.rpa-ladder>div{min-height:auto!important}}@media(max-width:700px){.rpa-hero{padding-top:8.5rem}.rpa-hero h1{font-size:clamp(2.75rem,13.5vw,4.6rem)}.rpa-section{padding-block:3.8rem}}