/* Cortex foundation demos: each motion explains one product responsibility. */
.cortex-demo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 52px;
}

.cortex-demo-grid > .cortex-card {
  position: relative;
  min-width: 0;
  min-height: 372px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--elevated);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.theme-light .cortex-demo-grid > .cortex-card {
  border-color: rgba(28, 24, 22, .09);
  background: #fff;
  box-shadow: 0 28px 72px -48px rgba(28, 24, 22, .38), 0 9px 25px -21px rgba(28, 24, 22, .24);
}

.cortex-demo-grid > .cortex-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--arka-red) 24%, var(--border));
}

.theme-light .cortex-demo-grid > .cortex-card:hover {
  box-shadow: 0 34px 78px -46px rgba(28, 24, 22, .42), 0 12px 28px -21px rgba(28, 24, 22, .26);
}

.cortex/* Cortex foundation demos: each motion explains one product responsibility. */
.cortex-demo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 52px;
}

.cortex-demo-grid > .cortex-card {
  position: relative;
  min-width: 0;
  min-height: 372px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--elevated);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.theme-light .cortex-demo-grid > .cortex-card {
  border-color: rgba(28, 24, 22, .09);
  background: #fff;
  box-shadow: 0 28px 72px -48px rgba(28, 24, 22, .38), 0 9px 25px -21px rgba(28, 24, 22, .24);
}

.cortex-demo-grid > .cortex-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--arka-red) 24%, var(--border));
}

.theme-light .cortex-demo-grid > .cortex-card:hover {
  box-shadow: 0 34px 78px -46px rgba(28, 24, 22, .42), 0 12px 28px -21px rgba(28, 24, 22, .26);
}

.cortex/* Cortex foundation demos: each motion explains one product responsibility. */
.cortex-demo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 52px;
}

.cortex-demo-grid > .cortex-card {
  position: relative;
  min-width: 0;
  min-height: 372px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--elevated);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.theme-light .cortex-demo-grid > .cortex-card {
  border-color: rgba(28, 24, 22, .09);
  background: #fff;
  box-shadow: 0 28px 72px -48px rgba(28, 24, 22, .38), 0 9px 25px -21px rgba(28, 24, 22, .24);
}

.cortex-demo-grid > .cortex-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--arka-red) 24%, var(--border));
}

.theme-light .cortex-demo-grid > .cortex-card:hover {
  box-shadow: 0 34px 78px -46px rgba(28, 24, 22, .42), 0 12px 28px -21px rgba(28, 24, 22, .26);
}

.cortex/* Cortex foundation demos: each motion explains one product responsibility. */
.cortex-demo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 52px;
}

.cortex-demo-grid > .cortex-card {
  position: relative;
  min-width: 0;
  min-height: 372px;
  padding: 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--elevated);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.theme-light .cortex-demo-grid > .cortex-card {
  border-color: rgba(28, 24, 22, .09);
  background: #fff;
  box-shadow: 0 28px 72px -48px rgba(28, 24, 22, .38), 0 9px 25px -21px rgba(28, 24, 22, .24);
}

.cortex-demo-grid > .cortex-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--arka-red) 24%, var(--border));
}

.theme-light .cortex-demo-grid > .cortex-card:hover {
  box-shadow: 0 34px 78px -46px rgba(28, 24, 22, .42), 0 12px 28px -21px rgba(28, 24, 22, .26);
}

.cortex-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 22px;
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.cortex-card-head > span {
  color: var(--arka-red);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .1em;
}

.cortex-card-head > b {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--tx5);
  font-size: 7.5px;
  font-weight: 650;
  letter-spacing: .08em;
}

.cortex-card-head > b > i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--arka-green);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--arka-green) 10%, transparent);
}

.cortex-card-visual {
  position: relative;
  height: 172px;
  margin: 18px 0 20px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: var(--bar);
}

.theme-light .cortex-card-visual {
  border-color: rgba(28, 24, 22, .07);
  background: #f8f5f2;
}

.cortex-card h3 {
  margin: 0;
  color: var(--tx1);
  font-family: Poppins, sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.018em;
  line-height: 1.25;
}

.cortex-card p {
  margin: 9px 0 0;
  color: var(--tx4);
  font-size: 12.5px;
  line-height: 1.58;
}

/* 01 — identity follows an artefact through three tools. */
.identity-visual {
  padding: 22px 16px;
}

.identity-path {
  position: absolute;
  right: 17%;
  bottom: 51px;
  left: 17%;
  height: 1px;
  background: var(--border-strong);
}

.identity-path span {
  position: absolute;
  top: -1px;
  left: 0;
  width: 34%;
  height: 2px;
  border-radius: 2px;
  background: var(--arka-red);
  transition: transform 620ms cubic-bezier(.22, 1, .36, 1);
}

.identity-tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.identity-tools b {
  min-width: 0;
  padding: 9px 5px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--elevated);
  color: var(--tx4);
  font-size: 9px;
  font-weight: 600;
  text-align: center;
  transition: color 380ms ease, border-color 380ms ease, background-color 380ms ease;
}

.identity-token {
  position: absolute;
  bottom: 27px;
  left: calc(16.666% - 36px);
  display: grid;
  grid-template-columns: 18px 1fr;
  grid-template-rows: auto auto;
  column-gap: 7px;
  width: 92px;
  padding: 8px;
  border: 1px solid color-mix(in srgb, var(--arka-red) 24%, var(--border));
  border-radius: 10px;
  background: var(--elevated);
  box-shadow: 0 13px 30px -20px rgba(28, 24, 22, .5);
  transition: left 620ms cubic-bezier(.22, 1, .36, 1);
}

.identity-token i {
  grid-row: 1 / 3;
  align-self: center;
  width: 18px;
  height: 18px;
  border: 5px double var(--arka-red);
  border-radius: 50%;
}

.identity-token strong { color: var(--tx1); font-size: 9px; }
.identity-token small { color: var(--tx5); font-size: 7px; }
.cortex-card-identity[data-step="1"] .identity-token { left: calc(50% - 46px); }
.cortex-card-identity[data-step="2"] .identity-token { left: calc(83.333% - 56px); }
.cortex-card-identity[data-step="1"] .identity-path span { transform: translateX(96%); }
.cortex-card-identity[data-step="2"] .identity-path span { transform: translateX(194%); }
.cortex-card-identity[data-step="0"] .identity-tools b:nth-child(1),
.cortex-card-identity[data-step="1"] .identity-tools b:nth-child(2),
.cortex-card-identity[data-step="2"] .identity-tools b:nth-child(3) { color: var(--tx1); border-color: color-mix(in srgb, var(--arka-red) 28%, var(--border)); background: color-mix(in srgb, var(--arka-red) 6%, var(--elevated)); }

/* 02 — explicit source → decision → action relations. */
.relation-visual svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.relation-edge { fill: none; stroke: var(--border-strong); stroke-width: 1.5; stroke-dasharray: 5 5; transition: stroke 420ms ease, stroke-width 420ms ease; }
.relation-pulse { fill: var(--arka-red); opacity: 0; transition: opacity 300ms ease; }
.cortex-card-relations[data-motion="running"] .relation-pulse { opacity: 1; }
.relation-node {
  position: absolute;
  min-width: 96px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--elevated);
  box-shadow: 0 12px 30px -24px rgba(28, 24, 22, .42);
  transition: border-color 420ms ease, transform 420ms ease, box-shadow 420ms ease;
}
.relation-node small, .relation-node strong { display: block; }
.relation-node small { color: var(--tx5); font-family: var(--font-mono); font-size: 7px; text-transform: uppercase; }
.relation-node strong { margin-top: 3px; color: var(--tx2); font-size: 9px; }
.relation-source { top: 20px; left: 12px; }
.relation-decision { top: 57px; left: calc(50% - 55px); }
.relation-action { right: 12px; bottom: 17px; }
.cortex-card-relations[data-step="0"] .relation-source,
.cortex-card-relations[data-step="1"] .relation-decision,
.cortex-card-relations[data-step="2"] .relation-action { transform: translateY(-2px); border-color: color-mix(in srgb, var(--arka-red) 30%, var(--border)); box-shadow: 0 18px 35px -24px rgba(199, 15, 67, .35); }
.cortex-card-relations[data-step="1"] .relation-edge-a,
.cortex-card-relations[data-step="2"] .relation-edge-a,
.cortex-card-relations[data-step="2"] .relation-edge-b { stroke: var(--arka-red); stroke-width: 2; }

/* 03 — provenance is traced back to a fresh source. */
.provenance-visual { padding: 14px; }
.provenance-fact, .provenance-source {
  position: relative;
  z-index: 2;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--elevated);
  box-shadow: 0 12px 28px -24px rgba(28, 24, 22, .4);
}
.provenance-fact { padding: 10px 11px; }
.provenance-fact small, .provenance-fact strong, .provenance-source small, .provenance-source strong { display: block; }
.provenance-fact small, .provenance-source small { color: var(--tx5); font-family: var(--font-mono); font-size: 7px; text-transform: uppercase; }
.provenance-fact strong { margin-top: 4px; color: var(--tx1); font-size: 9.5px; }
.provenance-trace { position: relative; height: 26px; margin-left: 18px; border-left: 1px dashed var(--border-strong); }
.provenance-trace span { position: absolute; top: 5px; left: 9px; color: var(--tx5); font-size: 7px; }
.provenance-trace i { position: absolute; top: -3px; left: -3px; width: 5px; height: 5px; border-radius: 50%; background: var(--arka-red); opacity: 0; }
.cortex-card-provenance[data-motion="running"] .provenance-trace i { opacity: 1; animation: provenanceTrace 1.85s ease-in-out infinite; }
.provenance-source { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 9px 10px; transition: border-color 420ms ease; }
.provenance-source strong { margin-top: 2px; color: var(--tx2); font-size: 8.5px; }
.provenance-source > b { display: inline-flex; align-items: center; gap: 5px; color: var(--tx5); font-family: var(--font-mono); font-size: 7px; font-weight: 600; }
.provenance-source > b i { width: 5px; height: 5px; border-radius: 50%; background: var(--tx5); transition: background-color 420ms ease, box-shadow 420ms ease; }
.cortex-card-provenance[data-step="2"] .provenance-source { border-color: color-mix(in srgb, var(--arka-green) 35%, var(--border)); }
.cortex-card-provenance[data-step="2"] .provenance-source > b { color: var(--status-pass); }
.cortex-card-provenance[data-step="2"] .provenance-source > b i { background: var(--arka-green); box-shadow: 0 0 0 4px color-mix(in srgb, var(--arka-green) 10%, transparent); }

/* 04 — three sessions feed one maintained subject memory. */
.memory-visual { padding: 14px; }
.memory-sessions { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; }
.memory-sessions span { display: flex; align-items: center; gap: 4px; min-width: 0; padding: 7px 5px; border: 1px solid var(--border); border-radius: 8px; background: var(--elevated); color: var(--tx5); font-size: 7px; white-space: nowrap; transition: color 380ms ease, border-color 380ms ease; }
.memory-sessions i { width: 4px; height: 4px; flex: 0 0 4px; border-radius: 50%; background: var(--tx5); }
.cortex-card-memory[data-step="0"] .memory-sessions span:nth-child(1),
.cortex-card-memory[data-step="1"] .memory-sessions span:nth-child(2),
.cortex-card-memory[data-step="2"] .memory-sessions span:nth-child(3) { color: var(--tx1); border-color: color-mix(in srgb, var(--arka-green) 30%, var(--border)); }
.cortex-card-memory[data-step="0"] .memory-sessions span:nth-child(1) i,
.cortex-card-memory[data-step="1"] .memory-sessions span:nth-child(2) i,
.cortex-card-memory[data-step="2"] .memory-sessions span:nth-child(3) i { background: var(--arka-green); }
.memory-stream { position: relative; height: 30px; }
.memory-stream::before, .memory-stream::after { position: absolute; top: 0; width: 34%; height: 28px; border-bottom: 1px dashed var(--border-strong); content: ''; }
.memory-stream::before { left: 16%; border-right: 1px dashed var(--border-strong); border-radius: 0 0 10px 0; }
.memory-stream::after { right: 16%; border-left: 1px dashed var(--border-strong); border-radius: 0 0 0 10px; }
.memory-stream i { position: absolute; bottom: -2px; left: calc(50% - 3px); width: 6px; height: 6px; border-radius: 50%; background: var(--arka-green); opacity: 0; }
.cortex-card-memory[data-motion="running"] .memory-stream i { animation: memoryDrop 1.35s ease-in infinite; }
.cortex-card-memory[data-motion="running"] .memory-stream i:nth-child(2) { animation-delay: .3s; }
.cortex-card-memory[data-motion="running"] .memory-stream i:nth-child(3) { animation-delay: .6s; }
.memory-core { display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 8px; padding: 9px; border: 1px solid color-mix(in srgb, var(--arka-green) 25%, var(--border)); border-radius: 10px; background: var(--elevated); }
.memory-rings { width: 30px; height: 30px; border: 1px solid color-mix(in srgb, var(--arka-green) 32%, transparent); border-radius: 50%; box-shadow: 0 0 0 5px color-mix(in srgb, var(--arka-green) 6%, transparent), 0 0 0 10px color-mix(in srgb, var(--arka-green) 3%, transparent); }
.memory-core small, .memory-core strong { display: block; }
.memory-core small { color: var(--tx5); font-family: var(--font-mono); font-size: 7px; }
.memory-core strong { margin-top: 2px; color: var(--tx1); font-size: 10px; }
.memory-core > b { color: var(--status-pass); font-family: var(--font-mono); font-size: 7px; }
.memory-count { display: none; }
.cortex-card-memory[data-step="0"] .memory-count-1,
.cortex-card-memory[data-step="1"] .memory-count-2,
.cortex-card-memory[data-step="2"] .memory-count-3,
.cortex-card-memory[data-step="3"] .memory-count-3 { display: inline; }

/* 05 — governed learning uses the real Cortex.deck tile flow. */
.learning-visual { padding: 0; overflow: hidden; background: #fff; }
.learning-visual iframe { display: block; width: 100%; height: 100%; border: 0; background: #fff; transform: scale(.86); transform-origin: center; }

/* 06 — the same bounded capability is routed to compatible engines. */
.engines-visual { padding: 13px; }
.engine-task { padding: 9px 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--elevated); }
.engine-task small, .engine-task strong { display: block; }
.engine-task small { color: var(--tx5); font-family: var(--font-mono); font-size: 6.5px; text-transform: uppercase; }
.engine-task strong { margin-top: 3px; color: var(--tx1); font-size: 9px; }
.engine-route { position: relative; display: flex; align-items: center; justify-content: center; height: 35px; }
.engine-route::before { position: absolute; right: 12%; left: 12%; height: 1px; background: var(--border-strong); content: ''; }
.engine-route span { position: absolute; left: 12%; width: 7px; height: 7px; border-radius: 50%; background: var(--arka-red); opacity: 0; }
.cortex-card-engines[data-motion="running"] .engine-route span { opacity: 1; animation: engineRoute 1.7s ease-in-out infinite; }
.engine-route b { position: relative; z-index: 1; padding: 4px 7px; border: 1px solid color-mix(in srgb, var(--arka-red) 25%, var(--border)); border-radius: 7px; background: var(--elevated); color: var(--arka-red); font-family: var(--font-mono); font-size: 7px; }
.engine-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; }
.engine-list span { padding: 7px 4px; border: 1px solid var(--border); border-radius: 8px; background: var(--elevated); color: var(--tx5); font-size: 7.5px; text-align: center; transition: color 380ms ease, border-color 380ms ease, transform 380ms ease; }
.cortex-card-engines[data-step="0"] .engine-list span:nth-child(1),
.cortex-card-engines[data-step="1"] .engine-list span:nth-child(2),
.cortex-card-engines[data-step="2"] .engine-list span:nth-child(3) { transform: translateY(-2px); color: var(--tx1); border-color: color-mix(in srgb, var(--arka-red) 30%, var(--border)); }
.engine-output { display: flex; align-items: center; gap: 6px; margin-top: 8px; color: var(--status-pass); font-family: var(--font-mono); font-size: 7px; }
.engine-output i { width: 5px; height: 5px; border-radius: 50%; background: var(--arka-green); }

@keyframes provenanceTrace { 0% { transform: translateY(0); opacity: 0; } 25% { opacity: 1; } 75% { opacity: 1; } 100% { transform: translateY(27px); opacity: 0; } }
@keyframes memoryDrop { 0% { transform: translate(-70px, -20px); opacity: 0; } 30% { opacity: 1; } 100% { transform: translate(0, 5px); opacity: 0; } }
@keyframes engineRoute { 0% { transform: translateX(0); opacity: 0; } 25% { opacity: 1; } 75% { opacity: 1; } 100% { transform: translateX(210px); opacity: 0; } }

@media (max-width: 1040px) {
  .cortex-demo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .cortex-demo-grid { grid-template-columns: 1fr; }
  .cortex-card { min-height: 360px; padding: 18px; }
  .cortex-card-visual { height: 168px; }
}

@media (prefers-reduced-motion: reduce) {
  .cortex-card, .cortex-card *, .cortex-card *::before, .cortex-card *::after { animation: none !important; transition-duration: .01ms !important; }
  .relation-pulse, .provenance-trace i, .memory-stream i, .engine-route span { display: none !important; }
}