.arch-view {
  --av-ink: var(--ui-ink); --av-muted: var(--ui-muted); --av-line: var(--ui-line);
  --av-dark: #ffffff; --av-mono: var(--mono,ui-monospace,Consolas,monospace);
  --av-fetch: #1c4f91; --av-exec: #1c7049; --av-read: #663d99; --av-write: #94510b;
  color: var(--av-ink); font-family: var(--sans,"DM Sans",system-ui,sans-serif); min-width: 0;
}
#architecturePanel { min-width: 0; }
.av-header {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center;
  gap: 12px 20px; padding: 16px 18px;
}
.av-header h2 { margin: 0; font: 650 20px/1.23 var(--sans,"DM Sans",system-ui,sans-serif); letter-spacing: -.025em; }
.av-device { display: block; margin-top: 4px; color: var(--av-muted); font: 11px/1.35 var(--av-mono); }
.av-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.arch-view .av-btn, .arch-view .av-toolbar select {
  min-height: 32px; border: 1px solid var(--av-line); border-radius: 5px; padding: 5px 10px;
  background: #fff; color: var(--ui-accent); font: 600 12px/1.4 var(--sans,"DM Sans",system-ui,sans-serif);
}
.arch-view .av-btn:hover:not(:disabled) { border-color: #7395ae; background: var(--ui-tint); }
.arch-view .av-btn:disabled { opacity: .45; cursor: default; }
.arch-view .av-step { color: #f8fbff; background: var(--ui-navy); border-color: var(--ui-navy); }
.arch-view .av-step:hover:not(:disabled) { background: var(--ui-accent); color: #fff; }
.av-surface { background: var(--av-dark); color: var(--ui-ink); }
.av-banner {
  display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 12px;
  padding: 11px 18px; background: var(--ui-wash); border-block-end: 1px solid var(--ui-line);
}
.av-step-number { color: #455e75; font: 11px/1.45 var(--av-mono); white-space: nowrap; }
.av-instruction { font: 600 15px/1.45 var(--av-mono); overflow-wrap: anywhere; color: var(--ui-ink); }
.av-state { display: inline-flex; gap: 6px; align-items: center; color: var(--ui-ink); font-size: 12px; }
.av-state::before { width: 6px; height: 6px; border-radius: 50%; background: #455e75; content: ""; }
.av-state.av-running::before { background: #127b49; }
.av-layout {
  display: grid; grid-template-columns: minmax(0,1fr) minmax(220px,24%);
  align-items: stretch; isolation: isolate; container-type: inline-size;
}
.av-scroll {
  align-content: center; min-width: 0; overflow: auto; scrollbar-width: thin; scrollbar-color: #627885 var(--av-dark);
  background-image: radial-gradient(var(--ui-line) .7px,transparent .9px); background-size: 14px 14px;
}
.av-scroll:focus-visible { outline: 2px solid #6395c0; outline-offset: -2px; }
.av-diagram { display: block; width: 100%; min-width: 630px; height: auto; }
.av-core-frame { fill: var(--ui-wash); fill-opacity: .94; stroke: #46616c; stroke-width: 1.2; stroke-dasharray: 5 4; }
.av-region-title { fill: #455e75; font: 650 11px/1 var(--av-mono); letter-spacing: 1.1px; }
.av-block { cursor: pointer; outline: none; }
.av-box { fill: #ffffff; stroke: #47606c; stroke-width: 1.2; }
.av-block:hover .av-box, .av-block:focus-visible .av-box { stroke: #276f97; stroke-width: 2.5; }
.av-block[aria-pressed="true"] .av-box { stroke-width: 2.6; }
.av-block[aria-pressed="true"] .av-node-title { text-decoration: underline; text-underline-offset: 3px; }
.av-block[data-signal="fetch"] .av-box { stroke: var(--av-fetch); fill: #e8f5ff; }
.av-block[data-signal="exec"] .av-box { stroke: var(--av-exec); fill: #e0f4e9; }
.av-block[data-signal="read"] .av-box { stroke: var(--av-read); fill: #f2eaff; }
.av-block[data-signal="write"] .av-box { stroke: var(--av-write); fill: #fff1dc; }
.av-node-title { fill: var(--ui-ink); font: 625 15px var(--sans,"DM Sans",system-ui,sans-serif); }
.av-node-value { fill: #455e75; font: 12px var(--av-mono); }
.av-wire, .av-pulse { pointer-events: none; stroke-linejoin: round; fill: none; }
.av-wire { stroke: #9cadbd; stroke-width: 1.1; }
.av-pulse { opacity: 0; stroke-width: 3.1; stroke-dasharray: 3 15; }
.av-wire:not([data-signal="quiet"]) { stroke-width: 2; }
.av-diagram [data-signal="fetch"]:is(.av-wire,.av-pulse) { stroke: var(--av-fetch); }
.av-diagram [data-signal="exec"]:is(.av-wire,.av-pulse) { stroke: var(--av-exec); }
.av-diagram [data-signal="read"]:is(.av-wire,.av-pulse) { stroke: var(--av-read); }
.av-diagram [data-signal="write"]:is(.av-wire,.av-pulse) { stroke: var(--av-write); }
.av-fill-quiet { fill: #9cadbd; }
.av-fill-fetch { fill: var(--av-fetch); } .av-color-fetch { --signal: var(--av-fetch); }
.av-fill-exec { fill: var(--av-exec); } .av-color-exec { --signal: var(--av-exec); }
.av-fill-read { fill: var(--av-read); } .av-color-read { --signal: var(--av-read); }
.av-fill-write { fill: var(--av-write); } .av-color-write { --signal: var(--av-write); }
.av-legend {
  display: flex; flex-wrap: wrap; gap: 5px 16px; padding: 9px 17px; border-top: 1px solid var(--ui-line);
  background: var(--ui-wash); color: var(--ui-ink); font-size: 11.5px;
}
.av-legend span { display: inline-flex; align-items: center; gap: 5px; }
.av-swatch { width: 16px; height: 2px; background: var(--signal); }
.av-details { border-inline-start: 1px solid var(--ui-line); padding: 15px; background: #ffffff; min-width: 0; }
.av-detail-label { color: #455e75; font-size: 11px; }
.av-details h3 { margin: 2px 0 12px; color: var(--ui-ink); font: 650 17px/1.3 var(--sans,"DM Sans",system-ui,sans-serif); letter-spacing: -.015em; }
.av-detail-body { max-height: 360px; overflow: auto; scrollbar-width: thin; scrollbar-color: #5a757e transparent; }
.av-detail-note { margin: 4px 0 9px; color: #455e75; font-size: 13px; line-height: 1.55; }
.av-group-label { margin: 12px 0 4px; color: var(--ui-ink); font: 650 12px/1.4 var(--sans,"DM Sans",system-ui,sans-serif); }
.av-list, .av-registers { margin: 0; }
.av-pair, .av-register {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  padding: 5px 0; gap: 2px 6px; border-top: 1px solid var(--ui-line);
}
.av-pair dt, .av-register dt { color: #455e75; font-size: 12px; }
.av-pair dd, .av-register dd { color: var(--ui-ink); margin: 0; font: 11.5px/1.5 var(--av-mono); }
.av-register dt { font: 11.5px var(--av-mono); }
.av-reg-change dd { color: #1c7049; }
.av-ins-list, .av-traffic { list-style: none; padding: 0; margin: 7px 0 0; }
.av-ins-list li { margin: 4px 0; color: #1c7049; font: 12px/1.55 var(--av-mono); overflow-wrap:anywhere; }
.av-transfer {
  display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 3px 5px;
  padding: 5px 0 7px 7px; margin-bottom: 5px; border-left: 2px solid var(--signal); color: var(--ui-ink);
}
.av-transfer b { color: var(--signal); font-size: 12px; }
.av-transfer strong, .av-transfer code { font: 11.5px var(--av-mono); }
.av-transfer code { overflow-wrap: anywhere; }
.av-target { grid-column: 1/-1; color: #455e75; font-size: 11px; }
.av-caption { margin: 0; padding: 10px 17px; color: var(--av-muted); font-size: 12px; line-height: 1.5; }
@media (max-width: 1000px) {
  .av-layout { grid-template-columns: 1fr; }
  .av-details { border-inline-start: 0; border-top: 1px solid var(--ui-line); }
  .av-detail-body { max-height: 220px; }
  .av-list { display: flex; flex-wrap: wrap; gap: 0 20px; }
  .av-registers { display: grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 0 16px; }
  .av-pair { border: 0; }
}
@media (max-width: 650px) {
  .av-header { padding: 12px; gap: 10px; } .av-toolbar { gap: 4px; }
  .av-banner { grid-template-columns:minmax(0,1fr) auto; gap: 4px; padding: 9px 12px; }
  .av-instruction { grid-column: 1/-1; grid-row: 2; font-size: 13px; }
  .av-legend { gap: 6px 12px; } .av-scroll { overscroll-behavior-x: contain; }
}

/* Instruction-level view of the control unit. */
.av-has-control { grid-template-columns: minmax(0, 1fr) clamp(300px, 32%, 450px); }
.av-has-control .av-details { background: #ffffff; }
.av-has-control .av-detail-body { max-height: none; }
.av-has-control .av-details h3 { margin-bottom: 10px; }
.arch-view .av-details h3:focus-visible { outline: 2px solid var(--av-fetch); outline-offset: 3px; }
.av-block[aria-pressed="true"][data-signal="quiet"] .av-box { stroke: #9abdb3; }
.av-control-panel { overflow-wrap: anywhere; }
.av-control-hint {
  padding: 9px 11px; margin: 10px 0; border-left: 2px solid #83bba4; background: #e0f4e9;
  font: 12px/1.5 var(--sans,"DM Sans",system-ui,sans-serif); color: #285a41;
}
.av-control-flow { margin: 0; }
.av-control-stage { position: relative; padding: 0 0 12px 18px; }
.av-control-stage:last-child { padding-bottom: 4px; }
.av-control-stage::before {
  position: absolute; top: 5px; left: 1px; width: 8px; height: 8px; border: 2px solid var(--stage-color);
  border-radius: 50%; box-sizing: border-box; background: #ffffff; content: "";
}
.av-control-stage:not(:last-child)::after {
  position: absolute; top: 14px; bottom: -4px; left: 4px; border-left: 1px solid #45626a; content: "";
}
.av-stage-instruction { --stage-color: var(--av-fetch); } .av-stage-decision { --stage-color: #94510b; }
.av-stage-effect { --stage-color: var(--av-exec); }
.av-control-stage dt {
  color: var(--stage-color); font: 650 11px/1.6 var(--sans,"DM Sans",system-ui,sans-serif);
  letter-spacing: .055em; text-transform: uppercase;
}
.av-control-stage dd { margin: 2px 0 0; color: var(--ui-ink); font: 13px/1.5 var(--sans,"DM Sans",system-ui,sans-serif); }
.av-stage-instruction dd, .av-stage-effect dd { font: 12px/1.5 var(--av-mono); }
.av-control-type { display: block; color: #455e75; font: 12px/1.5 var(--sans,"DM Sans",system-ui,sans-serif); }
.av-encoding { margin-top: 8px; border-top: 1px solid #354d55; }
.av-encoding summary { padding-block: 8px 4px; cursor: pointer; color: #455e75; font: 12px/1.5 var(--sans,"DM Sans",system-ui,sans-serif); }
.arch-view :is(.av-example-link,.av-context-link) {
  display: inline-flex; align-items: center; margin-top: 8px; border: 1px solid #4e676d; border-radius: 5px;
  padding: 5px 8px; background: transparent; color: #285a41; font: 600 12px/1.4 var(--sans,"DM Sans",system-ui,sans-serif);
}
.arch-view :is(.av-example-link,.av-context-link):hover:not(:disabled) { background: var(--ui-tint); border-color: #92b1ca; }
.arch-view .av-example-link:disabled { opacity: .48; cursor: default; }
.av-control-outputs {
  padding: 14px 17px 16px; border-top: 1px solid var(--ui-line); background: #ffffff;
}
.av-output-heading {
  display: flex; gap: 4px 16px; align-items: baseline; flex-wrap: wrap; margin: 0 0 10px;
}
.av-output-heading h3 { margin: 0; color: var(--ui-ink); font: 650 15px/1.4 var(--sans,"DM Sans",system-ui,sans-serif); }
.av-output-heading p { margin: 0; color: #455e75; font: 12px/1.5 var(--sans,"DM Sans",system-ui,sans-serif); }
.av-control-signals { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 6px; }
.arch-view button.av-control-signal {
  display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 6px;
  border: 1px solid var(--ui-line); border-radius: 5px; min-width: 0; min-height: 60px;
  padding: 8px 10px; background: #ffffff; text-align: left; color: var(--ui-ink);
}
.arch-view .av-control-signal[data-active="true"] { background: #e0f4e9; border-color: #4e7567; color: #285a41; }
.arch-view .av-control-signal:hover { border-color: #a9c7c8; }
.arch-view :is(.av-context-link,.av-example-link,.av-control-signal):focus-visible,
.av-encoding summary:focus-visible { outline: 2px solid #1c4f91; outline-offset: 2px; }
.av-signal-label { display: flex; align-items: center; gap: 6px; font: 600 12px/1.3 var(--sans,"DM Sans",system-ui,sans-serif); }
.av-signal-label::before { content: ""; flex: 0 0 auto; width: 7px; height: 7px; box-sizing: border-box; border-radius: 100%; border: 1px solid #84979d; }
[data-active="true"] .av-signal-label::before { border-color: #1c7049; background: #1c7049; }
.av-signal-value { font: 11.5px/1.5 var(--av-mono); overflow-wrap: anywhere; }
@media (max-width: 1000px) {
  .av-has-control { grid-template-columns: minmax(0,1fr); }
  .av-control-flow { display: grid; grid-template-columns: .85fr 1.15fr 1fr; column-gap: 12px; }
  .av-control-stage:not(:last-child)::after { display: none; }
  .av-control-stage { padding: 0 0 0 16px; }
}
@media (max-width: 720px) {
  .av-control-flow { display: block; } .av-control-stage:not(:last-child)::after { display: block; }
  .av-control-stage { padding-bottom: 12px; } .av-stage-effect { padding-bottom: 0; }
  .av-control-signals { grid-template-columns: repeat(auto-fit,minmax(min(130px,100%),1fr)); }
  .av-control-outputs { padding: 12px; }
}

.av-memory { padding: 3px 18px 16px; background:#fff; }
.av-memory-heading { margin:0 0 6px; font:650 13px/1.4 var(--sans,system-ui); color:#283c52; }
.av-memory-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(min(210px,100%),1fr)); gap:9px; }
.av-memory-card { display:grid; gap:5px; justify-items:stretch; text-align:start; background:#f7f9fc;
  border:1px solid #cbd5e1; border-radius:7px; padding:8px 11px; color:#263e59; cursor:pointer; }
.av-memory-card:hover,.av-memory-card:focus-visible { background:#eff4fa; border-color:#6481a3; }
.av-memory-label { display:flex; justify-content:space-between; gap:8px; align-items:baseline; font:600 13px/1.35 var(--sans,system-ui); }
.av-memory-capacity,.av-memory-usage { font:500 11px/1.4 var(--av-mono); color:#40546b; }
.av-memory-meter,.av-memory-unavailable { display:block; width:100%; height:5px; border-radius:5px; border:0; appearance:none; background:#dce4ed; overflow:hidden; }
.av-memory-meter::-webkit-progress-bar { background:#dce4ed; }
.av-memory-meter::-webkit-progress-value { background:#466e98; }
.av-memory-meter::-moz-progress-bar { background:#466e98; }
.av-memory-unavailable { background:repeating-linear-gradient(120deg,#e0e7ef 0 4px,#eff3f8 4px 8px); }