.btn-nina-ai {
  --nina-glow: rgba(96, 165, 250, 0.55);
  position: relative;
  isolation: isolate;
  z-index: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  padding: 0.28rem 0.85rem 0.28rem 0.28rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14) 0%, transparent 42%),
    linear-gradient(135deg, #1e3a8a 0%, #002055 70%);
  color: #fff !important;
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  flex-shrink: 0;
  white-space: nowrap;
  overflow: visible;
  box-shadow:
    0 8px 22px rgba(0, 32, 85, 0.38),
    0 0 0 1px rgba(147, 197, 253, 0.18),
    0 0 18px rgba(59, 130, 246, 0.28);
  transition:
    transform 180ms cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 220ms ease-out,
    filter 180ms ease-out,
    border-color 180ms ease-out;
  animation: nina-ai-breathe 3.2s ease-in-out infinite;
}
/* Soft outer bloom */
.btn-nina-ai::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: inherit;
  background: radial-gradient(
    120% 140% at 30% 40%,
    rgba(96, 165, 250, 0.35) 0%,
    rgba(37, 99, 235, 0.12) 42%,
    transparent 70%
  );
  z-index: -2;
  pointer-events: none;
  filter: blur(6px);
  opacity: 0.75;
  animation: nina-ai-bloom 3.2s ease-in-out infinite;
}
.btn-nina-ai:hover {
  transform: translateY(-1px) scale(1.02);
  border-color: rgba(255, 255, 255, 0.45);
  filter: brightness(1.06);
  box-shadow:
    0 12px 28px rgba(0, 32, 85, 0.48),
    0 0 0 1px rgba(191, 219, 254, 0.35),
    0 0 28px rgba(96, 165, 250, 0.5);
  color: #fff !important;
  animation-play-state: paused;
}
.btn-nina-ai:hover::after {
  opacity: 1;
  animation-play-state: paused;
}
.btn-nina-ai:active {
  transform: translateY(0) scale(0.97);
  transition-duration: 90ms;
}
.btn-nina-ai .nina-ai-logo-wrap {
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
  border: 2px solid #fff;
  flex-shrink: 0;
  display: block;
  box-shadow: 0 0 0 1px rgba(147, 197, 253, 0.35);
}
.btn-nina-ai .nina-ai-logo {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 12%;
  transform: scale(1.15);
}
.btn-nina-ai .nina-ai-label {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  padding-right: 0.15rem;
  line-height: 1;
  z-index: 1;
}
.btn-nina-ai .nina-ai-spark {
  width: 0.95rem;
  height: 0.95rem;
  flex-shrink: 0;
  fill: currentColor;
  opacity: 0.95;
  transform-origin: center;
  filter: drop-shadow(0 0 4px rgba(147, 197, 253, 0.7));
  animation: nina-ai-twinkle 2.4s ease-in-out infinite;
}
.btn-nina-ai:hover .nina-ai-spark {
  opacity: 1;
  filter: drop-shadow(0 0 8px rgba(191, 219, 254, 0.95));
  animation-duration: 1.1s;
}

@keyframes nina-ai-breathe {
  0%, 100% {
    box-shadow:
      0 8px 22px rgba(0, 32, 85, 0.38),
      0 0 0 1px rgba(147, 197, 253, 0.16),
      0 0 14px rgba(59, 130, 246, 0.22);
  }
  50% {
    box-shadow:
      0 8px 22px rgba(0, 32, 85, 0.42),
      0 0 0 1px rgba(191, 219, 254, 0.32),
      0 0 26px rgba(96, 165, 250, 0.48);
  }
}
@keyframes nina-ai-bloom {
  0%, 100% { opacity: 0.55; transform: scale(0.98); }
  50% { opacity: 0.9; transform: scale(1.04); }
}
@keyframes nina-ai-twinkle {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.85; }
  40% { transform: scale(1.18) rotate(8deg); opacity: 1; }
  70% { transform: scale(0.92) rotate(-4deg); opacity: 0.9; }
}

@media (prefers-reduced-motion: reduce) {
  .btn-nina-ai,
  .btn-nina-ai::after,
  .btn-nina-ai .nina-ai-spark {
    animation: none !important;
  }
  .btn-nina-ai:hover {
    transform: none;
  }
}

.nina-ai-modal {
  border: 0;
  border-radius: 1.45rem;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 20, 50, 0.38);
  background: #fff;
}
.nina-ai-head {
  background:
    radial-gradient(120% 160% at 100% 0%, rgba(59, 130, 246, 0.35) 0%, transparent 55%),
    linear-gradient(135deg, #0b1f4d 0%, #002055 55%, #123a8a 140%);
  color: #fff;
  padding: 1.15rem 1.3rem;
}
.nina-ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: #fff;
}
.nina-ai-badge .nina-ai-spark {
  width: 0.7rem;
  height: 0.7rem;
  fill: currentColor;
}
.nina-ai-avatar-wrap {
  width: 3.1rem;
  height: 3.1rem;
  border-radius: 999px;
  overflow: hidden;
  background: #fff;
  border: 2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22), 0 0 0 3px rgba(147, 197, 253, 0.25);
  flex-shrink: 0;
}
.nina-ai-avatar {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 12%;
  transform: scale(1.18);
}
.nina-ai-sub {
  font-size: 0.78rem;
  opacity: 0.82;
  margin-top: 0.2rem !important;
}
.nina-ai-body {
  position: relative;
  background:
    radial-gradient(90% 60% at 0% 0%, rgba(219, 234, 254, 0.55) 0%, transparent 50%),
    linear-gradient(180deg, #f4f7fc 0%, #ffffff 32%);
  padding: 1.2rem 1.25rem 1.4rem;
  min-height: 22rem;
}
.nina-ai-form {
  display: flex;
  gap: 0.55rem;
  margin-bottom: 0.85rem;
}
.nina-ai-form.is-loading {
  opacity: 0.55;
  pointer-events: none;
}
.nina-ai-input-wrap {
  position: relative;
  flex: 1;
  min-width: 0;
}
.nina-ai-input-icon {
  position: absolute;
  left: 0.95rem;
  top: 50%;
  transform: translateY(-50%);
  width: 0.95rem;
  height: 0.95rem;
  color: #64748b;
  pointer-events: none;
}
.nina-ai-form .form-control {
  border-radius: 1rem;
  padding: 0.9rem 1rem 0.9rem 2.35rem;
  border: 1px solid #e2e8f0;
  background: #fff;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  font-size: 0.92rem;
}
.nina-ai-form .form-control:focus {
  border-color: #002055;
  box-shadow: 0 0 0 3px rgba(0, 32, 85, 0.12);
}
.nina-ai-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 1rem;
  background: linear-gradient(135deg, #1e3a8a 0%, #002055 75%);
  color: #fff;
  font-weight: 800;
  padding: 0 1.15rem;
  white-space: nowrap;
  border: 0;
  box-shadow: 0 8px 18px rgba(0, 32, 85, 0.28);
  transition: transform 160ms cubic-bezier(0.16, 1, 0.3, 1), filter 160ms ease;
}
.nina-ai-submit .nina-ai-spark {
  width: 0.9rem;
  height: 0.9rem;
  fill: currentColor;
}
.nina-ai-submit:hover:not(:disabled) {
  filter: brightness(1.08);
  color: #fff;
  transform: translateY(-1px);
}
.nina-ai-submit:disabled {
  opacity: 0.7;
  cursor: wait;
}
.nina-ai-chips-label {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94a3b8;
  margin-bottom: 0.45rem;
}
.nina-ai-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}
.nina-ai-chip {
  border: 1px solid #e2e8f0;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  font-size: 0.74rem;
  font-weight: 700;
  color: #002055;
  cursor: pointer;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease, box-shadow 150ms ease;
}
.nina-ai-chip:hover:not(:disabled) {
  border-color: #002055;
  background: #eef2ff;
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(0, 32, 85, 0.08);
}
.nina-ai-chip:disabled {
  opacity: 0.55;
  cursor: wait;
}
.nina-ai-understood {
  font-size: 0.82rem;
  color: #64748b;
  min-height: 1.15rem;
  margin-bottom: 0.85rem;
}
.nina-ai-understood strong {
  color: #002055;
}
.nina-ai-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  max-height: 48vh;
  overflow: auto;
  padding-right: 0.15rem;
}
@media (min-width: 700px) {
  .nina-ai-results {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.nina-ai-card {
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 1.05rem;
  padding: 0.7rem;
  text-decoration: none !important;
  color: inherit;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: box-shadow 180ms ease, transform 180ms cubic-bezier(0.16, 1, 0.3, 1);
}
.nina-ai-card:hover {
  box-shadow: 0 14px 30px rgba(0, 32, 85, 0.14);
  transform: translateY(-2px);
}
.nina-ai-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #f8fafc;
  border-radius: 0.75rem;
}
.nina-ai-name {
  margin-top: 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #002055;
  line-height: 1.25;
  flex: 1;
}
.nina-ai-price {
  margin-top: 0.4rem;
  font-size: 0.95rem;
  font-weight: 800;
  color: #002055;
}
.nina-ai-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: #64748b;
  padding: 2.4rem 1rem;
  font-size: 0.92rem;
}
.nina-ai-empty-icon {
  width: 2.6rem;
  height: 2.6rem;
  margin: 0 auto 0.85rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  color: #002055;
  background: #eef2ff;
}
.nina-ai-empty-icon svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* Overlay de procesamiento IA */
.nina-ai-loading {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background:
    radial-gradient(80% 70% at 50% 35%, rgba(255, 255, 255, 0.72) 0%, rgba(248, 250, 252, 0.88) 55%, rgba(241, 245, 249, 0.94) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.nina-ai-loading[hidden] {
  display: none !important;
}
.nina-ai-loading-card {
  width: min(100%, 22rem);
  text-align: center;
  padding: 1.6rem 1.3rem 1.45rem;
  border-radius: 1.35rem;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.25);
  box-shadow: 0 18px 50px rgba(0, 32, 85, 0.16);
}
.nina-ai-loading-orbit {
  width: 5.2rem;
  height: 5.2rem;
  margin: 0 auto 1.1rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  position: relative;
  background:
    radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.12), transparent 60%);
}
.nina-ai-loading-orbit::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid transparent;
  border-top-color: #3b82f6;
  border-right-color: rgba(59, 130, 246, 0.25);
  animation: nina-ai-loading-spin 1.05s linear infinite;
}
.nina-ai-loading-avatar {
  width: 3.35rem;
  height: 3.35rem;
  box-shadow: 0 8px 20px rgba(0, 32, 85, 0.2);
}
.nina-ai-loading-title {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
  font-weight: 800;
  color: #002055;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.nina-ai-loading-sub {
  margin: 0 0 1.05rem;
  font-size: 0.82rem;
  color: #64748b;
  min-height: 1.2rem;
}
.nina-ai-loading-bar {
  height: 0.28rem;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}
.nina-ai-loading-bar span {
  display: block;
  height: 100%;
  width: 42%;
  border-radius: inherit;
  background: linear-gradient(90deg, #1e3a8a, #60a5fa, #1e3a8a);
  background-size: 200% 100%;
  animation: nina-ai-loading-bar 1.2s ease-in-out infinite;
}

@keyframes nina-ai-loading-spin {
  to { transform: rotate(360deg); }
}
@keyframes nina-ai-loading-bar {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(280%); }
}

@media (prefers-reduced-motion: reduce) {
  .nina-ai-loading-orbit::before,
  .nina-ai-loading-bar span {
    animation: none !important;
  }
}

.nina-ai-search-wrap {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex: 1;
  max-width: none;
}
@media (min-width: 768px) {
  .nina-ai-search-wrap {
    width: 75%;
    max-width: 860px;
  }
}