.cognitive-brain {
  position: relative;
  min-height: 42rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 20%, rgba(0, 209, 255, 0.14), transparent 28%),
    radial-gradient(circle at 82% 18%, rgba(139, 92, 255, 0.16), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(37, 210, 119, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(8, 12, 20, 0.98), rgba(10, 14, 24, 0.92));
}

.cognitive-brain::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 84%);
  pointer-events: none;
  opacity: 0.4;
}

.cognitive-brain canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.cognitive-brain__labels {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cognitive-brain__label {
  position: absolute;
  left: 0;
  top: 0;
  padding: 0.38rem 0.68rem;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(10, 15, 26, 0.74);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.76rem;
  font-weight: 600;
  backdrop-filter: blur(12px);
  transform: translate(-50%, -50%);
  transition: opacity 180ms ease, border-color 180ms ease, background 180ms ease;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.22);
  pointer-events: auto;
}

.cognitive-brain__label:hover,
.cognitive-brain__label:focus-visible,
.cognitive-brain__label.is-active {
  border-color: rgba(0, 209, 255, 0.38);
  background: rgba(8, 18, 30, 0.92);
  outline: none;
}

.cognitive-brain__label.is-dimmed {
  opacity: 0.42 !important;
}

.cognitive-brain__tooltip {
  position: absolute;
  inset: auto;
  z-index: 3;
  padding: 0.55rem 0.82rem;
  border: 1px solid rgba(0, 209, 255, 0.16);
  border-radius: 12px;
  background: rgba(8, 13, 22, 0.94);
  color: rgba(229, 231, 235, 0.88);
  font-size: 0.82rem;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(12px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

.cognitive-brain__panel {
  display: grid;
  gap: 0.9rem;
  padding: 1.2rem;
  border: 1px solid rgba(148, 163, 184, 0.16);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.015)),
    rgba(10, 15, 26, 0.84);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.cognitive-brain__panel--overlay {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  width: min(19rem, calc(100% - 2rem));
  z-index: 2;
  backdrop-filter: blur(18px);
}

.cognitive-brain__panel-eyebrow {
  color: var(--color-cyan);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cognitive-brain__panel h3 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 1.85rem);
}

.cognitive-brain__panel-link {
  justify-self: start;
}

.cognitive-brain__page-frame {
  position: relative;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: calc(var(--radius-lg) + 6px);
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(0, 209, 255, 0.08), transparent 28%),
    linear-gradient(160deg, rgba(11, 16, 26, 0.94), rgba(10, 14, 22, 0.98));
  box-shadow: var(--shadow-panel);
}

.cognitive-brain__page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(19rem, 0.7fr);
  min-height: 46rem;
}

.cognitive-brain__canvas {
  min-height: 46rem;
  border-right: 1px solid rgba(148, 163, 184, 0.1);
}

.cognitive-brain__sidebar {
  display: grid;
  align-content: space-between;
  gap: 1rem;
  padding: 1.4rem;
  background: rgba(7, 11, 19, 0.44);
}

.cognitive-brain__controls {
  display: grid;
  gap: 1rem;
}

.cognitive-brain__toggle-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.cognitive-brain__toggle {
  padding: 0.62rem 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: rgba(229, 231, 235, 0.86);
  font-size: 0.84rem;
  font-weight: 600;
}

.cognitive-brain__toggle.is-active {
  border-color: rgba(0, 209, 255, 0.34);
  background: rgba(0, 209, 255, 0.08);
  color: #ffffff;
}

.cognitive-brain__legend {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.cognitive-brain__legend-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: rgba(229, 231, 235, 0.82);
  font-size: 0.92rem;
}

.cognitive-brain__legend-swatch {
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  box-shadow: 0 0 16px currentColor;
}

.cognitive-brain__legend-swatch--perception { color: #00d1ff; background: #00d1ff; }
.cognitive-brain__legend-swatch--cognition { color: #2d7cff; background: #2d7cff; }
.cognitive-brain__legend-swatch--decision { color: #8b5cff; background: #8b5cff; }
.cognitive-brain__legend-swatch--action { color: #25d277; background: #25d277; }

@media (max-width: 1100px) {
  .cognitive-brain__page-grid {
    grid-template-columns: 1fr;
  }

  .cognitive-brain__canvas {
    min-height: 34rem;
    border-right: 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
  }
}

@media (max-width: 760px) {
  .cognitive-brain {
    min-height: 22rem;
  }

  .cognitive-brain__canvas {
    min-height: 22rem;
  }

  .cognitive-brain__panel--overlay {
    position: static;
    width: auto;
    margin: 1rem;
  }

  .cognitive-brain__label {
    font-size: 0.7rem;
    padding: 0.32rem 0.55rem;
  }

  .cognitive-brain__labels,
  .cognitive-brain__tooltip {
    display: none;
  }
}

@media (max-width: 520px) {
  .cognitive-brain {
    min-height: 19rem;
  }

  .cognitive-brain__canvas {
    min-height: 19rem;
  }

  .cognitive-brain__panel {
    padding: 1rem;
  }

  .cognitive-brain__panel h3 {
    font-size: 1.2rem;
  }
}