/* Native IR canvas; typography outside the diagram follows the website system. */
.ir-architecture{--ira-ink:#25332b;--ira-muted:#59665c;--ira-border:#cbd1c5;--ira-accent:#81649e;min-width:0;max-width:100%;color:var(--ira-ink);background:#f2f1eb;border-top:1px solid var(--ira-border);padding-top:20px;font-family:var(--font-sans,Pretendard,-apple-system,BlinkMacSystemFont,sans-serif)}
.ira-controls{display:flex;justify-content:space-between;align-items:center;gap:12px 24px;flex-wrap:wrap;margin-bottom:12px}
.ira-chapters{display:flex;align-items:center;gap:24px;flex-wrap:wrap;min-width:0}
.ir-architecture button{appearance:none;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 0;border:0;border-bottom:2px solid transparent;border-radius:0;color:var(--ira-muted);background:none;font:inherit;font-size:14px;line-height:1.4;cursor:pointer}
.ira-chapters button[aria-pressed=true]{color:var(--ira-ink);border-bottom-color:var(--ira-accent)}
.ira-transport{display:flex;align-items:center;gap:20px;flex-shrink:0}
.ira-transport button{color:var(--ira-muted)}
.ir-architecture .ira-sr-only,.ira-announcement{position:absolute;width:1px;height:1px;min-height:0;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.ira-caption{min-height:1.5em;margin:10px 0 20px;max-width:76ch;color:var(--ira-ink);font-size:16px;line-height:1.5;letter-spacing:-.01em;text-wrap:pretty}
.ira-viewport{position:relative;max-width:100%;width:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:#aa9ab8 #e4e6dd;-webkit-overflow-scrolling:touch}
.ira-stage{min-width:1280px;width:100%;aspect-ratio:1280/544}
.ira-stage canvas{display:block;width:100%;height:auto;aspect-ratio:1280/544}
.ira-pan-hint{display:none;margin:0 0 12px;color:var(--ira-muted);font-size:14px;line-height:1.5}
.ir-architecture[data-ir-architecture-pan=true] .ira-pan-hint{display:block}
.ira-text-map{margin-top:20px;border-top:1px solid var(--ira-border);font-size:14px;line-height:1.6;color:var(--ira-muted)}
.ira-text-map summary{cursor:pointer;min-height:44px;display:list-item;align-content:center;width:fit-content;padding:10px 0;color:var(--ira-ink)}
.ira-text-content{max-width:88ch;padding:0 0 12px}
.ira-text-content p{font-size:inherit;line-height:inherit;max-width:none;margin:8px 0 18px}
.ira-text-content dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:0 0 20px}
.ira-text-content dt{font-weight:600;color:var(--ira-ink)}
.ira-text-content dd{margin:2px 0 0}
.ir-architecture button:focus-visible,.ira-viewport:focus-visible,.ira-text-map summary:focus-visible{outline:2px solid #81649e;outline-offset:5px}
@media(max-width:700px){.ira-chapters{gap:0 18px}.ira-chapters button{justify-content:flex-start;text-align:left}.ira-controls{gap:4px 20px}.ira-text-content dl{grid-template-columns:1fr}.ira-stage{min-width:1280px}}
@media(prefers-reduced-motion:reduce){.ira-viewport{scroll-behavior:auto}}

@media(min-width:1101px){.ira-stage{min-width:0}}