.gateway-demo {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #fff;
}

.gateway-demo-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--faint);
  font: 9px/1.5 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.gateway-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
}

.gateway-live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px rgba(23, 105, 224, 0.1);
  animation: odin-pulse 1.8s ease-in-out infinite;
}

.gateway-pipeline {
  position: relative;
  display: grid;
  grid-template-columns: minmax(170px, 0.72fr) minmax(370px, 1.55fr) minmax(170px, 0.72fr);
  gap: 1px;
  background: var(--line);
}

.pipeline-panel {
  position: relative;
  z-index: 1;
  min-width: 0;
  padding: 22px;
  background: #fff;
}

.pipeline-label {
  margin-bottom: 14px;
  color: var(--faint);
  font: 9px var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.source-list,
.model-list {
  display: grid;
  gap: 10px;
}

.pipeline-node {
  position: relative;
  min-height: 50px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 12px;
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.pipeline-node::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.pipeline-node.is-active {
  border-color: var(--blue);
  background: rgba(23, 105, 224, 0.055);
  color: var(--blue);
  transform: translateY(-1px);
}

.pipeline-node.is-active::before {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 0 0 4px rgba(23, 105, 224, 0.1);
}

.odin-engine {
  position: relative;
  z-index: 2;
  padding: 20px;
  border: 1px solid rgba(23, 105, 224, 0.32);
  background: #f7faff;
}

.odin-engine-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.odin-engine-title strong {
  display: block;
  color: var(--blue);
  font-size: 27px;
  font-weight: 600;
}

.odin-engine-title span,
.request-id {
  color: var(--faint);
  font: 9px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.request-id {
  padding: 6px 8px;
  border: 1px solid var(--line);
  background: #fff;
}

.query-monitor {
  margin: 14px 0;
  padding: 12px 14px;
  border-left: 2px solid var(--blue);
  background: #fff;
}

.query-monitor-label {
  margin-bottom: 7px;
  color: var(--faint);
  font: 9px var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.query-monitor-text {
  min-height: 38px;
  margin: 0;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.5;
}

.policy-stages {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.policy-stage {
  min-height: 69px;
  padding: 10px;
  border: 1px solid var(--line);
  background: #fff;
  transition: border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.policy-stage span {
  display: block;
  color: var(--faint);
  font: 8px var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.policy-stage strong {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.policy-stage.is-active {
  border-color: var(--blue);
  background: rgba(23, 105, 224, 0.06);
  transform: translateY(-1px);
}

.policy-stage.is-active strong {
  color: var(--blue);
}

.policy-stage.is-warning {
  border-color: #c4552d;
  background: rgba(196, 85, 45, 0.07);
}

.policy-stage.is-warning strong {
  color: #a33e1c;
}

.token-meter {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.token-meter-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  color: var(--faint);
  font: 9px var(--mono);
  text-transform: uppercase;
}

.token-meter-track {
  height: 5px;
  margin-top: 8px;
  overflow: hidden;
  background: #e7edf6;
}

.token-meter-value {
  width: 0;
  height: 100%;
  background: var(--blue);
  transition: width 0.45s ease;
}

.request-packet {
  position: absolute;
  z-index: 8;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  max-width: 150px;
  padding: 7px 9px;
  border: 1px solid var(--blue);
  background: #fff;
  color: var(--blue);
  box-shadow: 0 7px 22px rgba(23, 105, 224, 0.15);
  font: 8px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  pointer-events: none;
  opacity: 0;
  will-change: transform;
}

.request-packet::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: currentColor;
}

.request-packet.is-warning {
  border-color: #c4552d;
  color: #a33e1c;
}

.gateway-event {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  border-top: 1px solid var(--line);
  background: #fbfcfe;
  color: var(--muted);
  font: 10px/1.5 var(--mono);
}

.gateway-event::before {
  content: ">";
  color: var(--blue);
}

@keyframes odin-pulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

@media (max-width: 900px) {
  .gateway-pipeline {
    grid-template-columns: 1fr;
  }

  .source-list,
  .model-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .pipeline-node {
    min-height: 58px;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .gateway-demo-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .pipeline-panel {
    padding: 16px;
  }

  .source-list,
  .model-list {
    grid-template-columns: 1fr;
  }

  .pipeline-node {
    min-height: 44px;
    justify-content: flex-start;
    text-align: left;
  }

  .policy-stages {
    grid-template-columns: 1fr;
  }

  .request-packet {
    max-width: 112px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gateway-live::before {
    animation: none;
  }

  .request-packet {
    display: none;
  }
}