/**
 * Public AI search control: white hummingbird (CSS mask) + restrained idle motion.
 */

.ai-search-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-color: #fff;
  -webkit-mask: url("../img/hummingbird-icon-16.svg") center / contain no-repeat;
  mask: url("../img/hummingbird-icon-16.svg") center / contain no-repeat;
  vertical-align: -2px;
  margin-right: 4px;
  animation: ai-search-icon-bob 1.8s ease-in-out infinite;
}

.ai-search-icon--sm {
  width: 14px;
  height: 14px;
  margin: 0 4px;
  vertical-align: -2px;
}

/* Shimmer as layered background-image so label text stays crisp above it.
 * .btn.primary only sets background-color, so this image composites on top. */
.btn-ai-search {
  position: relative;
  overflow: hidden;
  color: #fff !important;
  background-image: linear-gradient(
    110deg,
    transparent 30%,
    rgba(255, 255, 255, 0.22) 50%,
    transparent 70%
  );
  background-size: 220% 100%;
  background-repeat: no-repeat;
  animation: ai-search-shimmer 2.8s linear infinite;
}

.btn-ai-search:hover,
.btn-ai-search:focus {
  color: #fff !important;
}

@keyframes ai-search-shimmer {
  0% {
    background-position: 120% 0;
  }
  100% {
    background-position: -120% 0;
  }
}

@keyframes ai-search-icon-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-2px);
  }
}

.ai-search-powered {
  font-size: 12px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.55);
}

.ai-search-powered a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: underline;
}

.ai-search-powered .ai-search-icon {
  /* Muted mark next to credit text (not full white flash). */
  background-color: rgba(255, 255, 255, 0.75);
  animation: none;
}

/* Search modal is light; invert credit colors for contrast. */
.modal.white .ai-search-powered {
  color: #6c757d;
}

.modal.white .ai-search-powered a {
  color: #495057;
}

.modal.white .ai-search-powered .ai-search-icon {
  background-color: #495057;
}

.ai-search-transcript {
  max-width: 100%;
}

.ai-search-transcript .ai-search-turn {
  display: flex;
  gap: 12px;
  margin-bottom: 1rem;
  max-width: min(40rem, 92%);
}

.ai-search-transcript .sl-content p {
  margin-bottom: 0.35rem;
  color: rgba(255, 255, 255, 0.8);
}

.ai-search-continue {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.ai-search-continue-row {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
}

.ai-search-continue-row .form-control {
  flex: 1 1 auto;
  min-width: 0;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  resize: vertical;
}

.ai-search-continue-row .form-control::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.ai-search-continue-btn {
  flex: 0 0 auto;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.ai-search-btn-spinner[hidden] {
  display: none !important;
}

.ai-search-continue-btn:disabled {
  opacity: 0.75;
  cursor: wait;
}

/* Auth CTA (from authq.php) when guest tries AI search */
.ai-search-signin-cta .btn-sso {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  position: relative;
  text-align: center;
}

.ai-search-signin-cta .btn-sso .btn-sso-logo {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  margin: 0;
  float: none;
  line-height: 1;
  font-size: 18px;
}

.ai-search-signin-cta .btn-esteem-id {
  background: #354d36;
  border-color: #354d36;
}

.ai-search-signin-cta .btn-esteem-id:hover,
.ai-search-signin-cta .btn-esteem-id:focus {
  background: #2c402d;
  border-color: #2c402d;
  color: #fff;
}

@media (prefers-reduced-motion: reduce) {
  .ai-search-icon,
  .btn-ai-search {
    animation: none;
  }
}