/* Dot-grid background */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0,0,0,0.04) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
  z-index: 0;
}

/* Fade-in animation for output card */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Output card — toggled by JS */
.prompt-output { display: none; }
.prompt-output.visible {
  display: block;
  animation: fadeSlideIn 0.28s ease forwards;
}

/* Language button active state — toggled by JS */
.lang-btn.active {
  background: #111111;
  color: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,0.15);
}

/* Copy button copied state — toggled by JS */
.copy-btn.copied {
  color: #1D9E75;
  border-color: #1D9E75;
  background: #EBF5F1;
}

/* Toast — toggled by JS */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: #111111;
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 22px;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  white-space: nowrap;
  z-index: 100;
  font-family: inherit;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Custom scrollbar for prompt box */
#prompt-box::-webkit-scrollbar { width: 4px; }
#prompt-box::-webkit-scrollbar-track { background: transparent; }
#prompt-box::-webkit-scrollbar-thumb { background: #C5C5BF; border-radius: 2px; }

/* Responsive */
@media (max-width: 420px) {
  body { padding: 1.75rem 1rem 3rem; }
}