/* Time vs Accuracy — continuous-vs-single-raycast demo */

.doc-tva-demo .doc-tva-demo__layout {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: stretch;
}

.doc-tva-demo .doc-tva-demo__viewport {
  position: relative;
  min-height: 420px;
}

.doc-tva-demo__burst {
  position: absolute;
  top: 0.55rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  margin: 0;
  padding: 0.38rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 200, 80, 0.45);
  background: linear-gradient(165deg, rgba(40, 28, 8, 0.88), rgba(22, 14, 6, 0.92));
  color: rgba(255, 230, 190, 0.96);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.doc-tva-demo__burst.is-on {
  opacity: 1;
  transform: translateX(-50%) scale(1.02);
}

.doc-tva-demo__miss {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 12px;
  background: radial-gradient(ellipse at 50% 40%, rgba(255, 60, 90, 0.35) 0%, rgba(255, 30, 50, 0.12) 45%, transparent 70%);
  opacity: 0;
  transition: opacity 120ms ease-out;
  z-index: 3;
}

.doc-tva-demo__miss.is-on {
  opacity: 0.55;
}

.doc-tva-demo__deck {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(240px, 1fr);
  gap: 0.9rem;
  align-items: stretch;
}

.doc-tva-demo .doc-tva-demo__hud {
  position: static;
  margin: 0;
  align-self: stretch;
}

.doc-tva-demo .doc-tva-demo__controls {
  margin: 0;
  height: 100%;
}

.doc-tva-demo__heat {
  margin: 0.35rem 0 0;
  height: 0.45rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.doc-tva-demo__heat-fill {
  height: 100%;
  width: 8%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(46, 231, 242, 0.55), rgba(255, 154, 58, 0.85), rgba(255, 77, 109, 0.95));
  transition: width 0.12s ease-out;
}

.doc-tva-demo__wow {
  margin: 0.55rem 0 0;
  padding: 0.55rem 0.65rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.16);
  color: rgba(200, 218, 255, 0.9);
  font-size: 0.82rem;
  line-height: 1.45;
}

.doc-tva-demo__msg {
  margin: 0 0 0.65rem;
  padding: 0.65rem 0.7rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(0, 0, 0, 0.14);
  color: rgba(215, 228, 255, 0.92);
  font-size: 0.88rem;
  line-height: 1.45;
  min-height: 3.1rem;
  white-space: pre-line;
}

.doc-tva-demo [data-tva-mode="single"].is-active {
  border-color: rgba(46, 231, 142, 0.4);
  background: linear-gradient(135deg, rgba(46, 231, 142, 0.35), rgba(46, 200, 180, 0.2));
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.38) inset, 0 0 16px rgba(46, 231, 142, 0.22);
}

.doc-tva-demo [data-tva-mode="continuous"].is-active {
  border-color: rgba(61, 124, 255, 0.38);
  background: linear-gradient(135deg, rgba(61, 124, 255, 0.5), rgba(46, 180, 255, 0.28));
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.38) inset, 0 0 18px rgba(61, 124, 255, 0.24);
}

.doc-tva-demo [data-tva-mode="optimized"].is-active {
  border-color: rgba(181, 108, 255, 0.42);
  background: linear-gradient(135deg, rgba(181, 108, 255, 0.45), rgba(120, 70, 220, 0.24));
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.38) inset, 0 0 18px rgba(181, 108, 255, 0.22);
}

.doc-tva-demo .doc-two-gates__seg-btn {
  font-size: 0.64rem;
  padding: 0.48rem 0.28rem;
}

@media (max-width: 720px) {
  .doc-tva-demo__deck {
    grid-template-columns: 1fr;
  }
}