:root {
  --sky-one: #f5fbfa;
  --sky-two: #e7f4f2;
  --ocean: #0f766e;
  --fresh: #0f766e;
  --predicted: #b45309;
  --hold: #b91c1c;
  --user: #2563eb;
}

html[data-theme='dark'] {
  --sky-one: #171d20;
  --sky-two: #142224;
  --ocean: #5eead4;
  --fresh: #5eead4;
  --predicted: #fbbf24;
  --hold: #fca5a5;
  --user: #60a5fa;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 280px;
  min-height: 100%;
  overflow-x: hidden;
}

body {
  display: grid;
  min-height: 100svh;
  margin: 0;
  place-items: stretch center;
  color: var(--game-text);
  background:
    radial-gradient(circle at 88% 0%, var(--game-accent-soft), transparent 12rem), var(--game-bg);
  font-family: var(--game-font);
}

button {
  font: inherit;
}

.game {
  display: grid;
  align-content: start;
  width: min(100%, 420px);
  min-height: 100svh;
  padding: 0.82rem;
  gap: 0.56rem;
}

.game-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.6rem;
}

.eyebrow {
  margin: 0 0 0.15rem;
  color: var(--game-accent);
  font-family: var(--game-mono);
  font-size: 0.53rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1 {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 650;
  line-height: 1.16;
}

.slot-card {
  display: grid;
  min-width: 67px;
  padding: 0.38rem 0.48rem;
  gap: 0.08rem;
  color: var(--game-muted);
  background: var(--game-surface);
  border: 1px solid var(--game-divider);
  border-radius: var(--game-radius);
  font-size: 0.51rem;
  text-align: right;
}

#slot {
  color: var(--game-accent);
  font-family: var(--game-mono);
  font-size: 0.7rem;
  font-weight: 800;
  white-space: nowrap;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.38rem;
}

.metrics > div {
  display: grid;
  min-width: 0;
  min-height: 50px;
  padding: 0.36rem 0.34rem;
  align-content: center;
  gap: 0.06rem;
  background: var(--game-surface);
  border: 1px solid var(--game-divider);
  border-radius: var(--game-radius);
  text-align: center;
}

.metrics span {
  overflow: hidden;
  color: var(--game-muted);
  font-size: 0.6rem;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metrics output {
  color: var(--game-text);
  font-family: var(--game-mono);
  font-size: 0.76rem;
  font-weight: 800;
  white-space: nowrap;
}

.field {
  position: relative;
  min-width: 0;
  overflow: hidden;
  background: var(--sky-two);
  border: 1px solid var(--game-divider);
  border-radius: calc(var(--game-radius) + 2px);
  box-shadow: var(--game-shadow);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.field[data-resync='pending'] {
  border-color: var(--predicted);
}

.field[data-resync='applied'] {
  border-color: var(--fresh);
  box-shadow:
    var(--game-shadow),
    0 0 0 2px color-mix(in srgb, var(--fresh) 20%, transparent);
}

#scene {
  display: block;
  width: 100%;
  aspect-ratio: 180 / 91;
  overflow: hidden;
}

.sky {
  fill: url('#sky-gradient');
}

.sky-stop-one {
  stop-color: var(--sky-one);
}

.sky-stop-two {
  stop-color: var(--sky-two);
}

.horizon {
  fill: none;
  stroke: var(--ocean);
  stroke-opacity: 0.25;
  stroke-width: 2;
}

.semantic-link {
  stroke: var(--game-muted);
  stroke-dasharray: 5 5;
  stroke-linecap: round;
  stroke-width: 2;
  transition:
    stroke 180ms ease,
    stroke-width 180ms ease,
    stroke-dasharray 180ms ease;
}

.field[data-source='fresh'] .semantic-link {
  stroke: var(--fresh);
  stroke-dasharray: none;
  stroke-width: 2.6;
}

.field[data-source='predicted'] .semantic-link {
  stroke: var(--predicted);
  stroke-dasharray: 6 5;
}

.field[data-source='hold'] .semantic-link {
  stroke: var(--hold);
  stroke-dasharray: 2 7;
  stroke-width: 1.5;
}

.uav,
.digital-twin {
  color: var(--game-accent);
}

.uav path,
.digital-twin path {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.uav circle:not(.node-halo),
.digital-twin rect {
  fill: var(--sky-one);
  stroke: currentColor;
  stroke-width: 2;
}

.node-halo {
  fill: var(--game-accent-soft);
  stroke: var(--game-accent);
  stroke-opacity: 0.45;
}

.uav text,
.digital-twin text {
  fill: var(--game-text);
  font: 700 9px var(--game-mono);
  text-anchor: middle;
}

.cache-echo {
  fill: none;
  stroke: var(--predicted);
  stroke-dasharray: 3 4;
  stroke-opacity: 0;
}

.field[data-source='predicted'] .cache-echo {
  animation: cache-pulse 1.35s ease-out infinite;
  stroke-opacity: 0.66;
}

.field[data-source='predicted'] .echo-two {
  animation-delay: 320ms;
}

.field[data-source='hold'] .digital-twin {
  color: var(--hold);
  opacity: 0.78;
}

.user-node circle {
  fill: var(--user);
  stroke: var(--sky-two);
  stroke-width: 1;
}

.user-node line {
  stroke: var(--user);
  stroke-linecap: round;
  stroke-opacity: 0.72;
  stroke-width: 1.4;
}

.user-node.is-dim {
  opacity: 0.25;
}

.packet {
  fill: var(--fresh);
  opacity: 0;
}

.field[data-source='fresh'] .packet {
  animation: packet-flow 1.05s linear infinite;
  opacity: 1;
}

.packet-two {
  animation-delay: 350ms !important;
}

.packet-three {
  animation-delay: 700ms !important;
}

.source-chip {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  display: flex;
  align-items: center;
  min-height: 28px;
  padding: 0.24rem 0.38rem;
  gap: 0.28rem;
  color: var(--game-muted);
  background: color-mix(in srgb, var(--game-bg) 88%, transparent);
  border: 1px solid var(--game-divider);
  border-radius: var(--game-radius);
  font-size: 0.51rem;
  pointer-events: none;
}

#source {
  color: var(--game-text);
  font-family: var(--game-mono);
  font-weight: 800;
}

.field[data-source='fresh'] #source {
  color: var(--fresh);
}

.field[data-source='predicted'] #source {
  color: var(--predicted);
}

.field[data-source='hold'] #source {
  color: var(--hold);
}

.history {
  display: grid;
  grid-template-columns: repeat(24, minmax(0, 1fr));
  min-height: 16px;
  overflow: hidden;
  gap: 2px;
  border-radius: 2px;
}

.history span {
  min-width: 0;
  background: var(--game-surface-strong);
  border: 1px solid var(--game-divider);
  border-radius: 1px;
}

.history .fresh {
  background: var(--fresh);
  border-color: var(--fresh);
}

.history .predicted {
  background: var(--predicted);
  border-color: var(--predicted);
}

.history .hold {
  background: var(--hold);
  border-color: var(--hold);
}

.payloads {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.42rem;
}

.payloads button {
  display: grid;
  min-width: 0;
  min-height: 52px;
  padding: 0.36rem 0.28rem;
  place-content: center;
  gap: 0.08rem;
  color: var(--game-text);
  background: var(--game-surface);
  border: 1px solid var(--game-divider);
  border-radius: var(--game-radius);
  cursor: pointer;
}

.payloads button[aria-pressed='true'] {
  color: var(--game-on-accent);
  background: var(--game-accent);
  border-color: var(--game-accent);
  box-shadow: 0 6px 16px color-mix(in srgb, var(--game-accent) 18%, transparent);
}

.payloads button:hover:not([aria-pressed='true']) {
  border-color: var(--game-accent);
}

.payloads strong {
  overflow: hidden;
  font-size: 0.7rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.payloads small {
  overflow: hidden;
  color: var(--game-muted);
  font-size: 0.625rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.payloads button[aria-pressed='true'] small {
  color: color-mix(in srgb, var(--game-on-accent) 78%, transparent);
}

button:focus-visible {
  outline: 3px solid var(--game-accent);
  outline-offset: 2px;
}

.episode-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.42rem;
}

.episode-control,
.resync-control {
  min-width: 0;
  min-height: 52px;
  padding: 0.46rem 0.5rem;
  border-radius: var(--game-radius);
  cursor: pointer;
  font-weight: 800;
}

.episode-control {
  color: var(--game-on-accent);
  background: var(--game-accent);
  border: 1px solid var(--game-accent);
  font-size: 0.7rem;
}

.episode-control:hover {
  background: var(--game-accent-strong);
}

.resync-control {
  display: grid;
  align-content: center;
  gap: 0.1rem;
  color: var(--game-text);
  background: var(--game-surface);
  border: 1px solid var(--game-divider);
  text-align: center;
}

.resync-control:hover:not(:disabled),
.resync-control[data-state='pending'] {
  border-color: var(--predicted);
  background: color-mix(in srgb, var(--predicted) 10%, var(--game-surface));
}

.resync-control:disabled {
  cursor: default;
  opacity: 0.52;
}

.resync-control span {
  font-size: 0.68rem;
  line-height: 1.08;
}

.resync-control small {
  color: var(--game-muted);
  font-size: 0.6rem;
  font-weight: 650;
  line-height: 1.1;
}

.resync-control output {
  color: var(--predicted);
  font-family: var(--game-mono);
  font-weight: 850;
}

.status {
  display: grid;
  min-height: 2.5em;
  margin: 0;
  align-content: center;
  color: var(--game-text);
  font-size: 0.66rem;
  font-weight: 650;
  line-height: 1.28;
  text-align: center;
}

.status[data-source='fresh'] {
  color: var(--fresh);
}

.status[data-source='predicted'] {
  color: var(--predicted);
}

.status[data-source='hold'] {
  color: var(--hold);
}

.status[data-resync='pending'] {
  color: var(--predicted);
}

.status[data-resync='applied'] {
  color: var(--fresh);
}

.note {
  margin: -0.16rem auto 0;
  color: var(--game-muted);
  font-size: 0.625rem;
  line-height: 1.31;
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@keyframes cache-pulse {
  from {
    opacity: 0.72;
    transform: scale(0.78);
  }
  to {
    opacity: 0;
    transform: scale(1.24);
  }
}

@keyframes packet-flow {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(165px);
  }
}

@media (max-width: 360px) {
  .game {
    padding: 0.66rem;
    gap: 0.48rem;
  }

  .eyebrow {
    font-size: 0.48rem;
    letter-spacing: 0.08em;
  }

  h1 {
    font-size: 1rem;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.32rem;
  }

  .metrics > div {
    min-height: 44px;
    padding-inline: 0.36rem;
  }

  .metrics span {
    font-size: 0.6rem;
  }

  .metrics output {
    font-size: 0.76rem;
  }

  .payloads {
    gap: 0.3rem;
  }

  .payloads button {
    padding-inline: 0.18rem;
  }

  .payloads small {
    font-size: 0.625rem;
  }
}

@media (max-width: 300px) {
  .episode-controls {
    gap: 0.3rem;
  }

  .episode-control,
  .resync-control {
    padding-inline: 0.28rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .field[data-source='predicted'] .cache-echo,
  .field[data-source='fresh'] .packet {
    animation: none;
  }

  .semantic-link {
    transition: none;
  }

  .field {
    transition: none;
  }
}