/* Public functional models; private implementation detail and performance claims excluded. */
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@keyframes rd-fn-flow{to{stroke-dashoffset:-160}}
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@media(prefers-reduced-motion:reduce){.rd-functional-figure *{animation:none!important}}
.rd-fn-shape-legend{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0 0 16px;color:#899d8d;font:10px/1.6 ui-monospace,SFMono-Regular,monospace}.rd-fn-shape-legend span{display:flex;align-items:center;gap:9px}.rd-fn-shape-legend i{display:inline-block;width:16px;height:10px;border:1px solid #9aad9d;box-sizing:border-box}.rd-fn-symbol-decision{width:11px!important;height:11px!important;transform:rotate(45deg)}.rd-fn-symbol-input{transform:skew(-20deg)}.rd-fn-symbol-store{border-radius:50% / 22%}
@media(max-width:760px){.rd-fn-shape-legend{font-size:9px;gap:8px 15px}}
/* Narrow screens use an explicitly labelled relation table, not miniature glyphs. */
.rd-fn-mobile-heading{font:10px/1.7 ui-monospace,SFMono-Regular,monospace;letter-spacing:.06em;color:#9caf9e;margin:28px 0 12px;font-weight:400}.rd-fn-mobile-heading:first-child{margin-top:0}
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/* Centered publication figures; uniform viewBox scaling preserves object geometry. */
.rd-functional-figure{margin-left:auto;margin-right:auto}
.rd-blueprint-heading{display:flex;flex-direction:column;align-items:center;gap:7px;text-align:center}
.rd-bp-kicker{width:auto}.rd-blueprint-heading h3{text-align:center}.rd-fn-status{margin:0;max-width:none;text-align:center}
.rd-blueprint-drawing{max-width:1000px;margin:26px auto 0}
.rd-fn-svg{width:min(100%,var(--rd-fn-natural-width,900px));max-width:100%;height:auto;max-height:440px;display:block;margin:auto}
.rd-fn-legend,.rd-fn-shape-legend{justify-content:center}
.rd-functional-figure figcaption{margin:0 auto;text-align:center;max-width:860px}
.rd-fn-type-note,.rd-fn-lane-note{border-left:0;padding-left:0;text-align:center;max-width:850px;margin:18px auto}
.rd-engine>.rd-functional-figure{margin-left:auto;margin-right:auto}
.rd-fn-classification{max-width:850px;margin:auto}
.rd-fn-class-head,.rd-fn-class-row{display:grid;grid-template-columns:110px minmax(0,1fr) 145px;gap:18px;text-align:left}
.rd-fn-class-head{padding:12px 10px;border-bottom:1px solid #a1b4a635;font:9px/1.6 ui-monospace,SFMono-Regular,monospace;letter-spacing:.1em;text-transform:uppercase;color:#7e9484}
.rd-fn-class-row{padding:16px 10px;font-size:13px;line-height:1.65}
.rd-fn-class-row strong{font-size:13px}.rd-fn-class-row em{font-size:10px}
.rd-fn-anchor{max-width:850px;margin:25px auto 0;padding-top:13px;text-align:center}
.rd-fn-anchor-route{gap:15px;margin:16px 0;font-size:13px;text-align:center}
.rd-fn-anchor>p:last-child{margin-bottom:0;font-size:11px}
.rd-fn-lanes{max-width:950px;margin:auto;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr));text-align:left}
.rd-fn-lane{border:1px solid #91aa942f;border-top-color:#a5b59a66;padding:0 16px 10px}
.rd-fn-lane h4{font-size:10px;letter-spacing:.11em;margin:13px 0 15px;padding-bottom:12px;border-bottom:1px solid #91aa9428}
.rd-fn-lane ol{counter-reset:relation-step}
.rd-fn-lane li{counter-increment:relation-step;display:grid;grid-template-columns:18px minmax(0,1fr);gap:8px;min-height:0;padding:11px 0;border-left:0;border-bottom:1px solid #91aa9420;font-size:12px;line-height:1.7}
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.rd-fn-lane li:last-child{border-bottom:0}
@media(max-width:760px){
 .rd-blueprint-drawing{margin-top:22px}.rd-fn-svg{display:none}.rd-fn-status{width:auto;text-align:center}
 .rd-functional-figure figcaption{text-align:center}.rd-fn-mobile{text-align:left}
 .rd-fn-class-head,.rd-fn-class-row{grid-template-columns:69px minmax(0,1fr);gap:8px 12px}
 .rd-fn-class-head{padding:10px 0;font-size:8px}.rd-fn-class-head>span:last-child{display:none}
 .rd-fn-class-row{padding:14px 0;font-size:12px}.rd-fn-class-row em{grid-column:2}
 .rd-fn-anchor-route{grid-template-columns:minmax(0,1fr) 20px;gap:9px;text-align:left}
 .rd-fn-anchor-route span{min-width:0}.rd-fn-anchor>p:last-child{text-align:center}
 .rd-fn-lanes{grid-template-columns:1fr;gap:17px}.rd-fn-lane{padding:0 13px 8px}.rd-fn-lane li{font-size:12px;padding:10px 0}
}

/* Preserve the complete diagram on touch screens at a readable drawing scale. */
.rd-fn-viewport{max-width:100%;min-width:0;box-sizing:border-box}
.rd-fn-viewport:focus-visible{outline:1px solid #d6b642;outline-offset:4px}
.rd-fn-pan-hint{display:none}
@media(max-width:760px){
 .rd-blueprint-drawing{width:100%;min-width:0;max-width:100%;box-sizing:border-box}
 .rd-fn-viewport{width:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#91ab966b transparent;padding:8px 0 14px}
 .rd-fn-viewport .rd-fn-svg{display:block;width:900px;min-width:900px;max-width:none;height:auto;max-height:none;margin:0;overflow:hidden}
 .rd-fn-mobile{display:none}
 .rd-fn-pan-hint{display:block;margin:8px 0 0;text-align:center;color:#a9bcab;font:10px/1.7 ui-monospace,SFMono-Regular,monospace;letter-spacing:.02em}
}

/* Compact mobile relation diagrams retain typed nodes and every directed edge
   at a readable scale, while the authored desktop graph remains unchanged. */
.rd-fn-svg-mobile{display:none}
@media(max-width:760px){
 .rd-fn-svg-mobile{display:block;width:100%;max-width:100%;height:auto;overflow:visible}
 .rd-fn-svg-mobile marker path{stroke:#a8b5a5;stroke-width:1.2}
 .rd-fn-pan-hint{display:none}
}
@media(max-width:760px){
 .rd-fn-svg-mobile .rd-fn-node>:is(path,rect),.rd-fn-svg-mobile .rd-fn-edge>path{stroke-width:1.6}
 .rd-fn-svg-mobile marker path{stroke-width:1.6}
}