.rag-story{max-width:1480px;margin:auto;padding:32px 6% 70px}.rag-story p{line-height:1.65}.rag-back{text-underline-offset:5px;padding:12px 0;text-decoration:underline;display:inline-block}.rag-hero{align-items:center;gap:36px;padding:28px 0 40px;display:grid}.rag-context{color:var(--muted);margin-bottom:18px;font-size:14px}.rag-story h1{letter-spacing:-.045em;max-width:15ch;margin:0 0 24px;font-size:clamp(36px,4.4vw,68px);line-height:1.08}.rag-lead{max-width:38ch;font-size:clamp(19px,1.7vw,23px)}.rag-role{color:var(--muted);margin:24px 0;font-size:15px}.rag-primary{background:var(--ink);color:var(--paper);border-radius:30px;justify-content:space-between;align-items:center;gap:36px;padding:14px 20px;font-weight:650;display:inline-flex}.rag-primary span{transition:transform .16s}.rag-primary:hover span{transform:translate(2px,2px)}.rag-architecture{background:var(--soft);border-radius:28px;padding:24px 20px;position:relative;overflow:hidden}.rag-architecture-heading{padding:0 0 16px}.rag-architecture h2{letter-spacing:-.035em;font-size:23px;line-height:1.2}.rag-architecture-heading p,.rag-architecture-note{color:var(--muted);margin:10px 0 0;font-size:12px}.rag-steps{position:relative}.rag-example{border-left:2px solid var(--accent);margin:0 0 16px;padding-left:16px}.rag-example p{margin:0 0 6px;font-size:17px}.rag-example cite{color:var(--muted);font-size:11px;font-style:normal}.rag-steps:before{content:"";background:color-mix(in srgb, var(--accent) 24%, transparent);width:2px;position:absolute;top:30px;bottom:30px;left:17px}.rag-step{margin:0;padding:0;position:relative}.rag-step summary{cursor:pointer;align-items:center;gap:14px;min-height:72px;padding:14px 0;list-style:none;display:flex}.rag-step summary::-webkit-details-marker{display:none}.rag-step-number{border:1px solid var(--line);background:var(--paper);width:36px;height:36px;color:var(--accent);border-radius:50%;flex-shrink:0;place-items:center;font-size:14px;transition:background .18s,color .18s;display:grid}.rag-step[open] .rag-step-number{color:var(--paper);background:var(--accent);border-color:var(--accent)}.rag-step-label{flex:1;gap:5px;min-width:0;display:grid}.rag-step-label strong{font-size:16px;font-weight:650}.rag-step-label small{color:var(--muted);font-size:12px}.rag-step-toggle{color:var(--accent);font-size:24px;transition:transform .22s}.rag-step[open] .rag-step-toggle{transform:rotate(45deg)}.rag-step-content{margin:0 0 8px 50px;padding:0 0 14px;animation:.26s both rag-detail-in}.rag-step-content p{max-width:48ch;margin:0;font-size:14px}.rag-architecture-note{border-top:1px solid var(--line);padding-top:16px}.rag-nav{border-block:1px solid var(--line);flex-wrap:wrap;gap:8px 22px;padding:14px 0;display:flex}.rag-nav a{text-underline-offset:6px;align-items:center;min-height:44px;font-size:14px;text-decoration:underline;display:flex}.rag-section{gap:28px;padding:48px 0;scroll-margin-top:24px;display:grid}.rag-section h2{letter-spacing:-.04em;max-width:21ch;margin-bottom:22px;font-size:clamp(28px,3vw,42px);line-height:1.15}.rag-section h3{margin-bottom:18px;font-size:19px}.rag-section p{max-width:62ch}.rag-section-lead{margin-bottom:18px;font-size:19px}.rag-decisions ul{margin:0;padding:0;list-style:none}.rag-decisions li{border-bottom:1px solid var(--line);padding:16px 0;line-height:1.65}.rag-stack{color:var(--muted);margin-top:22px;font-size:12px}.rag-results{border-block:1px solid var(--line)}.rag-measure{flex-direction:column;gap:6px;margin:24px 0 18px;display:flex}.rag-measure strong{letter-spacing:-.06em;color:var(--accent);font-size:clamp(64px,8vw,100px);font-weight:600;line-height:1}.rag-measure span{font-size:18px}.rag-sample{font-weight:650}.rag-result-source{color:var(--muted);margin-top:20px;font-size:13px}.rag-limitations p+p{margin-top:20px}.rag-next{border-left:3px solid var(--accent);padding-left:20px}.rag-evidence-links{align-self:center}.rag-evidence-links a{border-bottom:1px solid var(--line);flex-direction:column;gap:8px;padding:22px 35px 22px 0;display:flex;position:relative}.rag-evidence-links span{color:var(--muted);font-size:14px}.rag-evidence-links b{font-size:22px;transition:transform .16s;position:absolute;top:24px;right:6px}.rag-evidence-links a:hover b{transform:translate(2px,-2px)}.rag-related{border-top:1px solid var(--line);flex-wrap:wrap;gap:16px 28px;padding-top:24px;display:flex}.rag-related a{text-underline-offset:5px;padding-block:12px;font-size:14px;text-decoration:underline}@keyframes rag-detail-in{0%{opacity:.3;transform:translateY(-5px)}to{opacity:1;transform:none}}@media (width>=900px){.rag-story{padding-top:40px}.rag-hero{grid-template-columns:1.05fr 1fr;gap:7%;padding:40px 0 64px}.rag-architecture{padding:32px}.rag-section{grid-template-columns:1fr 1fr;gap:8%;padding:64px 0}}@media (prefers-reduced-motion:reduce){.rag-step-content{animation:none}.rag-story *{transition:none}}:root[data-motion=off] .rag-step-content{animation:none}:root[data-motion=off] .rag-story *{transition:none}