/* An isolated, progressively enhanced diagram for the messaging guide. */
.e2ee-explainer {
  --e2ee-ink: #e9eceb;
  --e2ee-muted: #a7b1b0;
  --e2ee-line: #384241;
  --e2ee-teal: #91dbcb;
  --e2ee-amber: #efc487;
  margin: 28px 0;
  border: 1px solid var(--e2ee-line);
  background: #111615;
  color: var(--e2ee-ink);
  isolation: isolate;
}
.e2ee-explainer *, .e2ee-explainer *::before, .e2ee-explainer *::after { box-sizing: border-box; }
.e2ee-explainer [hidden] { display: none !important; }
.e2ee-explainer .e2ee-header { padding: 24px 26px 20px; border-bottom: 1px solid var(--e2ee-line); }
.e2ee-explainer .e2ee-kicker, .e2ee-explainer .e2ee-number, .e2ee-explainer .e2ee-payload-label,
.e2ee-explainer .e2ee-route-label, .e2ee-explainer .e2ee-step-label {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .68rem;
  line-height: 1.5;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.e2ee-explainer .e2ee-kicker { margin: 0 0 10px; color: var(--e2ee-teal); }
.e2ee-explainer .e2ee-kicker::before { content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 9px; background: currentColor; vertical-align: 2px; }
.e2ee-explainer .e2ee-title { margin: 0; color: var(--e2ee-ink); font-size: clamp(1.25rem, 3vw, 1.7rem); line-height: 1.25; }
.e2ee-explainer .e2ee-intro { margin: 10px 0 0; color: var(--e2ee-muted); font-size: .92rem; line-height: 1.6; }
.e2ee-explainer .e2ee-controls { padding: 20px 26px 0; }
.e2ee-explainer .e2ee-modes { min-width: 0; padding: 0; margin: 0; border: 0; }
.e2ee-explainer .e2ee-modes legend { padding: 0; margin-bottom: 10px; font-size: .85rem; font-weight: 600; }
.e2ee-explainer .e2ee-mode-options { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.e2ee-explainer .e2ee-mode-option { position: relative; display: flex; cursor: pointer; }
.e2ee-explainer .e2ee-mode-option input { position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; }
.e2ee-explainer .e2ee-mode-option span { width: 100%; min-height: 48px; display: flex; align-items: center; justify-content: center; gap: 9px; padding: 11px 12px; border: 1px solid var(--e2ee-line); color: var(--e2ee-muted); font-size: .85rem; line-height: 1.4; text-align: center; }
.e2ee-explainer .e2ee-mode-option span::before { content: ""; flex: 0 0 9px; width: 9px; height: 9px; border: 1px solid currentColor; border-radius: 50%; }
.e2ee-explainer .e2ee-mode-option input:checked + span { color: var(--e2ee-teal); border-color: var(--e2ee-teal); background: #172823; }
.e2ee-explainer .e2ee-mode-option input:checked + span::before { background: currentColor; box-shadow: inset 0 0 0 2px #172823; }
.e2ee-explainer .e2ee-mode-option input:focus-visible + span, .e2ee-explainer button:focus-visible,
.e2ee-explainer .e2ee-endpoint-option input:focus-visible { outline: 2px solid var(--e2ee-ink); outline-offset: 4px; }
.e2ee-explainer .e2ee-network-note { margin: 10px 0 0; font-size: .76rem; color: var(--e2ee-muted); line-height: 1.6; }
.e2ee-explainer .e2ee-diagram { margin: 0; padding: 25px 26px 22px; }
.e2ee-explainer .e2ee-flow { display: grid; grid-template-columns: minmax(0, 1fr) 36px minmax(0, 1fr) 36px minmax(0, 1fr); align-items: center; }
.e2ee-explainer .e2ee-node { min-width: 0; padding: 16px 13px; border: 1px solid var(--e2ee-line); background: #151b1a; transition: border-color 180ms ease, background-color 180ms ease; }
.e2ee-explainer .e2ee-node-heading { display: flex; align-items: center; gap: 10px; min-width: 0; }
.e2ee-explainer .e2ee-device-icon { display: block; flex: 0 0 28px; width: 28px; height: 36px; fill: none; stroke: currentColor; stroke-width: 1.3; color: var(--e2ee-muted); }
.e2ee-explainer .e2ee-node-name { display: block; font-size: .93rem; font-weight: 600; line-height: 1.4; }
.e2ee-explainer .e2ee-number { display: block; margin-bottom: 2px; color: var(--e2ee-muted); font-size: .6rem; }
.e2ee-explainer .e2ee-payload { margin: 17px 0 13px; min-height: 91px; padding: 13px 10px; border: 1px solid #35423e; background: #0c1110; }
.e2ee-explainer .e2ee-payload-label { display: block; margin-bottom: 8px; color: var(--e2ee-muted); font-size: .58rem; }
.e2ee-explainer .e2ee-payload-text { display: block; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .84rem; line-height: 1.6; font-weight: 500; overflow-wrap: anywhere; }
.e2ee-explainer .e2ee-badge { display: flex; align-items: flex-start; gap: 7px; margin: 0; min-height: 36px; font-size: .74rem; line-height: 1.5; color: var(--e2ee-muted); }
.e2ee-explainer .e2ee-badge svg { width: 13px; height: 15px; flex: 0 0 13px; margin-top: 1px; fill: none; stroke: currentColor; stroke-width: 1.5; }
.e2ee-explainer .e2ee-node--service .e2ee-badge, .e2ee-explainer .e2ee-node--service .e2ee-payload-text { color: var(--e2ee-teal); }
.e2ee-explainer .e2ee-route { position: relative; align-self: stretch; display: flex; align-items: center; justify-content: center; color: var(--e2ee-teal); }
.e2ee-explainer .e2ee-route svg { display: block; width: 100%; height: 20px; overflow: visible; }
.e2ee-explainer .e2ee-route-line { stroke: currentColor; stroke-width: 1; fill: none; opacity: .7; }
.e2ee-explainer .e2ee-packet { fill: currentColor; opacity: 0; }
.e2ee-explainer .e2ee-route-label { position: absolute; top: calc(50% - 27px); left: 0; width: 100%; text-align: center; font-size: .5rem; letter-spacing: .05em; }
.e2ee-explainer .e2ee-caption { display: flex; align-items: flex-start; gap: 9px; margin-top: 18px; color: var(--e2ee-muted); font-size: .8rem; line-height: 1.6; }
.e2ee-explainer .e2ee-caption svg { flex: 0 0 18px; width: 18px; height: 18px; margin-top: 3px; fill: none; stroke: var(--e2ee-teal); stroke-width: 1.5; }
.e2ee-explainer .e2ee-playback { padding: 20px 26px 0; }
.e2ee-explainer .e2ee-progress { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 0 0 17px; padding: 0; list-style: none; }
.e2ee-explainer .e2ee-progress li { display: inline-flex; gap: 6px; align-items: center; margin: 0; padding: 0; font-size: .75rem; line-height: 1.5; color: var(--e2ee-muted); }
.e2ee-explainer .e2ee-progress-count { display: inline-grid; width: 20px; height: 20px; place-items: center; border: 1px solid var(--e2ee-line); font: .65rem/1 ui-monospace, SFMono-Regular, Consolas, monospace; }
.e2ee-explainer .e2ee-progress li[aria-current="step"] { color: var(--e2ee-teal); }
.e2ee-explainer .e2ee-progress li[aria-current="step"] .e2ee-progress-count { border-color: var(--e2ee-teal); background: #172823; }
.e2ee-explainer .e2ee-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.e2ee-explainer button { display: inline-flex; justify-content: center; align-items: center; gap: 8px; min-height: 44px; padding: 11px 15px; margin: 0; border: 1px solid var(--e2ee-line); border-radius: 0; background: transparent; color: var(--e2ee-ink); font: 500 .8rem/1.4 system-ui, sans-serif; cursor: pointer; }
.e2ee-explainer button:hover:not(:disabled) { background: #202b28; border-color: var(--e2ee-muted); }
.e2ee-explainer button.e2ee-send { background: var(--e2ee-ink); border-color: var(--e2ee-ink); color: #111615; }
.e2ee-explainer button.e2ee-send:hover:not(:disabled) { background: #ffffff; border-color: #ffffff; }
.e2ee-explainer button:disabled { opacity: .55; cursor: default; }
.e2ee-explainer button svg { width: 12px; height: 12px; fill: currentColor; }
.e2ee-explainer .e2ee-status { margin: 16px 0 0; min-height: 3.2em; color: var(--e2ee-ink); font-size: .88rem; line-height: 1.6; }
.e2ee-explainer .e2ee-endpoint { padding: 20px 26px; border-top: 1px solid var(--e2ee-line); background: #171c1a; }
.e2ee-explainer .e2ee-endpoint-option { display: flex; align-items: flex-start; gap: 10px; font-size: .83rem; line-height: 1.55; cursor: pointer; }
.e2ee-explainer .e2ee-endpoint-option input { flex: 0 0 17px; width: 17px; height: 17px; margin: 3px 0 0; accent-color: var(--e2ee-amber); }
.e2ee-explainer .e2ee-endpoint-text { margin: 9px 0 0 27px; color: var(--e2ee-muted); font-size: .78rem; line-height: 1.6; }
.e2ee-explainer .e2ee-model-note { margin: 0; padding: 14px 26px; border-top: 1px solid var(--e2ee-line); color: var(--e2ee-muted); font-size: .72rem; line-height: 1.65; }
.e2ee-explainer[data-mode="transport"] .e2ee-node--service .e2ee-payload-text,
.e2ee-explainer[data-mode="transport"] .e2ee-node--service .e2ee-badge { color: var(--e2ee-ink); }
.e2ee-explainer[data-mode="transport"] .e2ee-caption svg { stroke: var(--e2ee-muted); }
.e2ee-explainer[data-enhanced="true"][data-step="1"] .e2ee-node--sender,
.e2ee-explainer[data-enhanced="true"][data-step="2"] .e2ee-node--service,
.e2ee-explainer[data-enhanced="true"][data-step="3"] .e2ee-node--recipient { border-color: var(--e2ee-teal); background: #17231f; }
.e2ee-explainer[data-endpoint="accessible"] .e2ee-node--recipient { border-color: var(--e2ee-amber); }
.e2ee-explainer[data-endpoint="accessible"] .e2ee-node--recipient .e2ee-badge { color: var(--e2ee-amber); }
.e2ee-explainer[data-endpoint="accessible"] .e2ee-endpoint-text { color: var(--e2ee-amber); }
.e2ee-explainer[data-enhanced="true"][data-step="0"] .e2ee-node--service .e2ee-payload-text,
.e2ee-explainer[data-enhanced="true"][data-step="1"] .e2ee-node--service .e2ee-payload-text,
.e2ee-explainer[data-enhanced="true"] .e2ee-node[data-readable="false"] .e2ee-payload-text { color: var(--e2ee-muted); }
.e2ee-explainer[data-enhanced="true"][data-step="2"][data-mode="e2ee"] .e2ee-node--service .e2ee-payload-text,
.e2ee-explainer[data-enhanced="true"][data-step="3"][data-mode="e2ee"] .e2ee-node--service .e2ee-payload-text { color: var(--e2ee-teal); }
.e2ee-explainer[data-running="true"][data-step="1"] .e2ee-route--first .e2ee-packet,
.e2ee-explainer[data-running="true"][data-step="2"] .e2ee-route--second .e2ee-packet { animation: e2ee-packet-travel 950ms ease-in-out 1 both; }
@keyframes e2ee-packet-travel {
  0% { opacity: 0; transform: translateX(-13px); }
  20%, 80% { opacity: 1; }
  100% { opacity: 0; transform: translateX(13px); }
}
@media (max-width: 640px) {
  .e2ee-explainer .e2ee-header { padding: 20px 17px 17px; }
  .e2ee-explainer .e2ee-controls { padding: 17px 17px 0; }
  .e2ee-explainer .e2ee-mode-options { grid-template-columns: 1fr; }
  .e2ee-explainer .e2ee-mode-option span { justify-content: flex-start; text-align: left; }
  .e2ee-explainer .e2ee-diagram { padding: 20px 17px; }
  .e2ee-explainer .e2ee-flow { grid-template-columns: minmax(0, 1fr); }
  .e2ee-explainer .e2ee-node { padding: 14px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 11px; align-items: start; }
  .e2ee-explainer .e2ee-node-heading { grid-column: 1; gap: 7px; }
  .e2ee-explainer .e2ee-device-icon { flex-basis: 24px; width: 24px; height: 32px; }
  .e2ee-explainer .e2ee-node-name { font-size: .85rem; }
  .e2ee-explainer .e2ee-number { font-size: .52rem; letter-spacing: .06em; }
  .e2ee-explainer .e2ee-payload { grid-column: 2; grid-row: 1 / 3; margin: 0; min-height: 92px; padding: 10px 8px; }
  .e2ee-explainer .e2ee-payload-text { font-size: .77rem; }
  .e2ee-explainer .e2ee-payload-label { font-size: .54rem; letter-spacing: .02em; }
  .e2ee-explainer .e2ee-badge { grid-column: 1; min-height: 0; font-size: .67rem; gap: 5px; }
  .e2ee-explainer .e2ee-route { height: 39px; }
  .e2ee-explainer .e2ee-route svg { width: 36px; transform: rotate(90deg); }
  .e2ee-explainer .e2ee-route-label { top: 12px; left: calc(50% + 15px); width: auto; }
  .e2ee-explainer .e2ee-playback { padding: 18px 17px 0; }
  .e2ee-explainer .e2ee-endpoint { padding: 18px 17px; }
  .e2ee-explainer .e2ee-progress { column-gap: 14px; }
  .e2ee-explainer .e2ee-model-note { padding: 13px 17px; }
}
@media (max-width: 360px) {
  .e2ee-explainer .e2ee-node { padding: 11px; gap: 8px; }
  .e2ee-explainer .e2ee-device-icon { display: none; }
  .e2ee-explainer .e2ee-progress { gap: 9px; }
  .e2ee-explainer .e2ee-progress li { font-size: .69rem; }
  .e2ee-explainer button { flex: 1 1 auto; padding-inline: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  .e2ee-explainer .e2ee-node { transition: none; }
  .e2ee-explainer .e2ee-packet { animation: none !important; }
}
@media (forced-colors: active) {
  .e2ee-explainer .e2ee-mode-option input:checked + span { outline: 2px solid Highlight; outline-offset: -4px; }
  .e2ee-explainer .e2ee-progress li[aria-current="step"] { outline: 1px solid Highlight; }
}