/* Isolated marketing illustration. All colors and type inherit SUAR tokens. */
.infra-demo { position: relative; min-inline-size: 0; inline-size: 100%; block-size: 424px; display: flex; flex-direction: column; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: radial-gradient(ellipse at 50% 40%, var(--hero-glow), transparent 75%), var(--bg-page); box-shadow: 0 16px 40px var(--shadow-soft); isolation: isolate; }
.infra-demo .infra-symbols { position: absolute; inline-size: 0; block-size: 0; overflow: hidden; }
.infra-demo svg { fill: none; stroke: currentColor; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; }
.infra-heading { padding: var(--space-4) var(--space-5) 0; pointer-events: none; }
.infra-demo .infra-title { font-size: .78rem; font-weight: 500; color: var(--text-primary); line-height: 1.5; }
.infra-demo .infra-subtitle { font-size: .68rem; color: var(--text-muted); line-height: 1.6; }
.infra-stage { flex: 1; min-block-size: 0; position: relative; direction: ltr; touch-action: pan-y; background-image: radial-gradient(circle, var(--border-subtle) .7px, transparent .8px); background-size: 20px 20px; margin: var(--space-2); }
.infra-fallback { position: absolute; inline-size: 100%; block-size: 100%; object-fit: contain; }
.infra-links, .infra-nodes { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; overflow: visible; pointer-events: none; }
.infra-nodes { z-index: 1; }
.infra-demo .infra-link { cursor: pointer; pointer-events: stroke; outline: none; }
.infra-demo .infra-link-hit { stroke: transparent; stroke-width: 20; }
.infra-demo .infra-link-line { stroke: var(--border-strong); stroke-opacity: .65; stroke-width: 1.2; transition: stroke var(--motion-micro); }
.infra-demo .infra-link:is(:hover, :focus-visible, .is-selected) .infra-link-line { stroke: var(--accent); stroke-opacity: 1; stroke-width: 2; }
.infra-demo .infra-link:focus-visible .infra-link-hit { stroke: var(--accent-wash-strong); stroke-width: 10; }
.infra-demo .infra-traffic-layer, .infra-demo .infra-traffic, .infra-demo .infra-traffic * { pointer-events: none; }
.infra-demo .infra-traffic circle { fill: var(--accent); stroke: none; }
.infra-demo .infra-traffic { opacity: 1; }
.infra-demo .infra-traffic-halo { opacity: .12; }
.infra-demo .infra-traffic-dot { opacity: 1; filter: none; }
.infra-demo .infra-traffic.is-unrouted { display: none; }

.infra-demo .infra-link.is-new .infra-link-line { animation: infra-established .65s ease-out; }
.infra-demo .infra-preview { stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 4 5; pointer-events: none; }
.infra-node { position: absolute; inline-size: 84px; block-size: 66px; transform: translate(-50%, -50%); pointer-events: auto; }
.infra-demo button { -webkit-user-select: none; user-select: none; cursor: pointer; }
.infra-demo .infra-device { inline-size: 84px; block-size: 66px; min-inline-size: 0; min-block-size: 0; padding: 5px 2px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; border: 1px solid transparent; border-radius: var(--radius-sm); background: var(--bg-page); color: var(--text-secondary); cursor: grab; touch-action: none; transition: border-color var(--motion-micro), background var(--motion-micro), box-shadow var(--motion-micro), transform var(--motion-micro); }
.infra-device > svg { inline-size: 32px; block-size: 32px; color: var(--text-muted); flex-shrink: 0; }
.infra-device > span { font-size: .62rem; line-height: 1.5; white-space: nowrap; }
html[dir="rtl"] .infra-device > span { direction: rtl; font-size: .65rem; }
.infra-demo .infra-node:is(:hover, :focus-within) .infra-device { background: var(--bg-surface); border-color: var(--border-default); }
.infra-demo .infra-node:is(.is-selected, .is-source) .infra-device { border-color: var(--accent); background: var(--bg-surface); }
.infra-node:is(.is-selected, .is-source) .infra-device > svg { color: var(--accent); }
.infra-node.is-dragging { z-index: 3; }
.infra-node.is-dragging .infra-device { cursor: grabbing; box-shadow: 0 8px 18px var(--shadow-deep); }
.infra-demo .infra-link-departing { stroke: var(--border-strong); stroke-width: 1.2; opacity: 0; pointer-events: none; }
.infra-link.is-rerouting .infra-link-departing { animation: infra-route-out 140ms ease-out; }
.infra-link.is-rerouting:not(.is-new) .infra-link-line { animation: infra-route-in 140ms ease-out; }
@keyframes infra-route-out { from { opacity: .65; } to { opacity: 0; } }
@keyframes infra-route-in { from { opacity: .2; } to { opacity: 1; } }
.infra-demo .infra-node.is-target .infra-device { border-color: var(--border-accent); }
.infra-demo .infra-node.is-hover-target .infra-device { border-color: var(--accent); background: var(--accent-wash-strong); }
.infra-demo.is-connecting .infra-device { cursor: crosshair; }
.infra-enhancement { flex: 0 0 auto; padding-inline: var(--space-3); }
.infra-palette { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 2px; padding: var(--space-2) 0; border-block: 1px solid var(--border-subtle); }
.infra-demo .infra-palette-item { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; min-inline-size: 0; min-block-size: 48px; padding: 4px 0; background: transparent; border: 1px solid transparent; border-radius: var(--radius-sm); color: var(--text-muted); touch-action: pan-x; cursor: grab; }
.infra-palette-item svg { inline-size: 21px; block-size: 21px; }
.infra-palette-item span { font-size: .57rem; line-height: 1.5; white-space: nowrap; }
.infra-demo .infra-palette-item:hover { color: var(--accent); background: var(--accent-wash); border-color: var(--border-accent); }
.infra-controls { display: flex; align-items: center; justify-content: space-between; min-block-size: 44px; }
.infra-controls-end { display: flex; gap: var(--space-1); }
.infra-demo .infra-controls button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-inline-size: 40px; min-block-size: 40px; padding: var(--space-2); color: var(--text-muted); background: transparent; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: .68rem; line-height: 1.5; }
.infra-controls svg { inline-size: 16px; block-size: 16px; }
.infra-demo .infra-controls button:enabled:hover, .infra-demo .infra-connect[aria-pressed="true"] { color: var(--accent); border-color: var(--border-accent); background: var(--accent-wash); }
.infra-demo .infra-controls button:disabled { background: transparent; border-color: transparent; opacity: .35; cursor: default; }
.infra-demo :is(button, [role="button"]):focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.infra-ghost { position: absolute; inline-size: 44px; block-size: 44px; padding: 6px; transform: translate(-50%, -50%); color: var(--accent); background: var(--bg-surface); border: 1px solid var(--accent); border-radius: var(--radius-sm); pointer-events: none; z-index: 4; }
.infra-sr { position: absolute; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.infra-demo .infra-feedback { position: absolute; inset-inline: var(--space-3); inset-block-end: 116px; margin-inline: auto; inline-size: fit-content; max-inline-size: calc(100% - 24px); background: var(--bg-surface-elevated); color: var(--text-secondary); border-radius: var(--radius-sm); font-size: .68rem; line-height: 1.6; pointer-events: none; z-index: 5; }
.infra-feedback:not(:empty) { padding: var(--space-2) var(--space-3); border: 1px solid var(--border-default); box-shadow: 0 3px 12px var(--shadow-soft); }

@keyframes infra-established { from { stroke: var(--accent); stroke-width: 3; stroke-opacity: 1; } to { stroke: var(--border-strong); stroke-width: 1.2; } }
@media (max-width: 1099px) and (min-width: 801px) {
  .infra-demo { block-size: 420px; }
  .infra-heading { padding-inline: var(--space-3); }
}
@media (max-width: 1099px) {
  .infra-palette { display: flex; overflow-x: auto; scrollbar-width: thin; scrollbar-color: var(--border-default) transparent; overscroll-behavior-x: contain; }
  .infra-demo .infra-palette-item { flex: 0 0 54px; }
}
@media (max-width: 800px) {
  .infra-demo { block-size: 414px; }
  .infra-heading { padding-inline: var(--space-4); }
}
@media (pointer: coarse) {
  .infra-demo .infra-controls button { min-inline-size: 44px; min-block-size: 44px; }
}
@media (prefers-reduced-motion: reduce) {
  .infra-demo *, .infra-demo *::after { animation: none !important; transition: none !important; }
  .infra-demo .infra-traffic { display: none; }
  .infra-node.is-dragging .infra-device { transform: none; }
}
@media (forced-colors: active) {
  .infra-demo .infra-link-line { stroke: CanvasText; }
  .infra-demo .infra-node.is-selected .infra-device { outline: 2px solid Highlight; }
}