.back-link{font-size:14px;color:var(--muted);text-decoration:none;border-bottom:1px solid #57746b;padding:7px 0}.architecture-main{max-width:1550px;margin:auto;min-height:auto;padding:36px 42px}.architecture-main h1{font-size:44px;margin:0 0 18px}.architecture-main .topline{margin-bottom:24px}.architecture-main .lead{max-width:850px}.mode-tabs{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0 24px}.mode-tabs button{font-size:14px}.mode-tabs .selected{background:var(--mint);color:#122d28;border-color:var(--mint)}.explorer{display:grid;grid-template-columns:minmax(0,1fr) 335px;gap:20px;align-items:start}.map-panel{background:#101d28;border:1px solid var(--line);border-radius:14px;padding:20px}.map-heading{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:#c2d0d9;margin-bottom:22px}.legend{font-size:12px;color:var(--muted)}.legend i{display:inline-block;width:15px;height:2px;background:var(--mint);vertical-align:middle;margin-right:5px}.map-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:38px 23px;position:relative;padding:6px 0}.component{position:relative;z-index:1;text-align:left;min-height:91px;background:#172936;padding:13px 11px;border:1px solid #39505e;border-radius:9px;transition:opacity .2s,border-color .2s,background .2s}.component:hover{background:#233e49}.component small{display:block;font-size:11px;color:#9bacba;letter-spacing:.4px;margin-bottom:6px}.component strong{font-size:14px;line-height:1.35;display:block;font-weight:550}.component.selected{border:2px solid var(--mint);background:#21443d}.component.neighbor{border-color:#83aeb0;background:#213744}.component.dim{opacity:.43}.component.external{border-style:dashed}.component.control small{color:#e9c690}#wires{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none;z-index:0}.wire{stroke:var(--mint);stroke-width:2;fill:none;opacity:.85}.wire.active{stroke-dasharray:8 5;animation:travel 1s linear infinite}@keyframes travel{to{stroke-dashoffset:-26}}.map-note{font-size:12px;color:#91a6b6;margin-top:22px}.inspector{border:1px solid #3a505b;background:#14232f;border-radius:14px;padding:22px;min-height:280px}.inspector h2{font-size:23px;line-height:1.25}.inspector p{font-size:15px;color:#bdcbd5}.component-links{display:flex;flex-direction:column;gap:7px;margin-top:20px}.component-links button{text-align:left;font-size:13px;padding:10px 12px}.component-links small{display:block;color:#9db3c2;font-size:12px}.inspector .tag{font-size:11px}.play-controls{display:flex;gap:6px;margin-top:20px}.play-controls button{font-size:13px;padding:8px 10px;flex:1}.play-controls #play{background:var(--mint);color:#142c27}.play-controls button:disabled{opacity:.3;cursor:default}.step-list{display:flex;flex-direction:column;gap:4px;margin-top:15px;border-top:1px solid var(--line);padding-top:16px}.step-list button{text-align:left;border:0;padding:7px 10px;font-size:13px;color:#a7bbc9}.step-list button.active{color:var(--mint);background:#213b38}.step-list button span{margin-right:9px;font-size:12px}.step-count{font-size:12px;color:var(--mint);letter-spacing:1px;margin-bottom:16px}.edge-label{font-size:13px;color:#d9e6f0;border-top:1px solid #35505c;padding-top:15px;margin-top:20px}.infra-strip{border:1px solid var(--line);border-radius:10px;padding:20px 24px;display:flex;gap:28px;align-items:center;margin-top:22px;flex-wrap:wrap}.infra-strip .tag{margin:0;max-width:185px;font-size:11px}.infra-strip strong{font-size:14px;display:block}.infra-strip span:not(.tag){font-size:12px;color:#9db0bf;display:block}@media(max-width:1150px){.architecture-main{padding:28px}.explorer{grid-template-columns:minmax(0,1fr) 290px;gap:14px}.map-panel{padding:15px}.map-grid{gap:32px 14px}.component{padding:9px}.component strong{font-size:13px}.map-heading{flex-direction:column}}@media(max-width:900px){.explorer{grid-template-columns:1fr}.map-heading{flex-direction:row}.inspector{min-height:0}.map-grid{gap:36px 20px}.step-list{display:grid;grid-template-columns:1fr 1fr}.architecture-main{padding:25px 20px}.architecture-main h1{font-size:38px}}@media(max-width:520px){.map-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 22px}.component{min-height:83px;padding:12px}.component strong{font-size:14px}.legend{display:none}.mode-tabs{display:grid;grid-template-columns:1fr 1fr}.mode-tabs button{text-align:left;font-size:13px;padding:10px}.back-link{font-size:12px}.step-list{grid-template-columns:1fr}.infra-strip{gap:17px}.infra-strip .tag{max-width:none;width:100%}}
/* Stable geometry: selection changes paint only; explanations scroll independently. */
html{scrollbar-gutter:stable}
.component.selected{border-width:1px;box-shadow:inset 0 0 0 1px var(--mint)}
.inspector{height:680px;display:grid;grid-template-rows:66px minmax(0,1fr) 195px 32px;gap:12px;min-width:0;overflow:hidden;padding:18px}
.inspector-toolbar{grid-row:1;display:flex;align-items:center;min-width:0;border-bottom:1px solid var(--line);padding-bottom:12px}
#map-help{font-size:14px;color:var(--muted)}
#playback[hidden],#steps[hidden],#map-help[hidden]{display:none}
.play-controls{display:grid;grid-template-columns:1fr .8fr 1fr;gap:6px;margin:0;width:100%;position:relative;padding-right:0}
.play-controls button{padding:9px 5px;min-width:0;font-size:13px}
.play-controls #restart{position:absolute;right:0;top:calc(100% + 17px);font-size:11px;padding:3px 8px;z-index:2;background:#14232f}
#detail{grid-row:2;min-height:0;overflow-y:auto;overflow-x:hidden;scrollbar-gutter:stable;padding-right:7px;padding-top:21px;overflow-wrap:anywhere}
.inspector:has(#playback[hidden]) #detail{grid-row:2 / 4;padding-top:0}
.step-list{grid-row:3;margin:0;min-height:0;overflow:auto;display:flex;scrollbar-gutter:stable;padding-top:10px}
.step-list button{flex-shrink:0}
.inspector-hint{grid-row:4;font-size:11px;color:#91a6b6;border-top:1px solid var(--line);padding-top:8px}
@media(max-width:900px){.inspector{height:650px;grid-template-rows:66px minmax(0,1fr) 175px 32px}.play-controls{max-width:420px}.step-list{display:flex}}
@media(prefers-reduced-motion:reduce){.wire.active{animation:none}}