/* AI Chat – conversation UI: header, scrollable messages, input at bottom */
.lt-ai-search {
  width: 100%;
  max-width: 42rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: env(safe-area-inset-left, 0);
  padding-right: env(safe-area-inset-right, 0);
  box-sizing: border-box;
  background: var(--color-bg, #fff);
  border: 1px solid var(--color-border, rgba(0,0,0,0.1));
  border-radius: 16px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  /* Hero often uses text-align: center — keep form controls left-aligned */
  text-align: left;
}

/* Reduce vertical space in the homepage hero when AI chat is enabled */
.lt-hero-unit .lt-hero-unit__content {
  padding-top: 4rem;
  padding-bottom: 3rem;
  --flow-space: 1.25rem;
}

.lt-hero-unit .lt-popular-searches {
  margin-top: 1rem !important;
}

.lt-ai-search__header {
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--color-brand-primary, #1d7cb6) 0%, #15608f 100%);
  color: #fff;
}

.lt-ai-search__title {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lt-ai-search__subtitle {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  opacity: 0.95;
}

/* Step 1: choose product */
.lt-ai-search-product-step {
  padding: 0.9rem 1.25rem 1rem;
  background: var(--color-bg, #fff);
}

.lt-ai-search-product-step__label {
  display: block;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text-primary, #111827);
  margin-bottom: 0.75rem;
}

.lt-ai-search__picks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.lt-ai-search__field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 0;
}

.lt-ai-search__field--kit {
  grid-column: 1 / -1;
  justify-self: start;
  width: 100%;
  max-width: 100%;
}

.lt-ai-search__field--kit .lt-ai-search-pick {
  text-align: left;
}

.lt-ai-search__field-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary, #4b5563);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.lt-ai-search-pick {
  width: 100%;
  height: 2.75rem;
  padding: 0 0.75rem;
  font-size: 0.9375rem;
  border: 1px solid var(--input-color-border, rgba(0,0,0,0.2));
  border-radius: 12px;
  background: var(--color-bg);
  color: var(--color-text-primary);
  text-align: left;
}

.lt-ai-search-pick:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.lt-ai-search-pick:focus:not(:disabled) {
  outline: none;
  border-color: var(--color-brand-primary);
}

.lt-ai-search-product-step__row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: stretch;
}

.lt-ai-search-product-step__row--start {
  margin-bottom: 0.35rem;
}

.lt-ai-search-product-step__kit-note {
  margin: 0.5rem 0 0;
  padding: 0.65rem 0.75rem;
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--color-text-primary, #374151);
  background: rgba(29, 124, 182, 0.06);
  border: 1px solid rgba(29, 124, 182, 0.2);
  border-radius: 10px;
}

.lt-ai-search-product-select {
  flex: 1;
  min-width: min(100%, 16rem);
  height: 2.75rem;
  padding: 0 0.75rem;
  font-size: 0.9375rem;
  border: 1px solid var(--input-color-border, rgba(0,0,0,0.2));
  border-radius: 12px;
  background: var(--color-bg);
  color: var(--color-text-primary);
}

.lt-ai-search-product-select:focus {
  outline: none;
  border-color: var(--color-brand-primary);
}

.lt-ai-search-product-continue {
  flex-shrink: 0;
  height: 2.75rem;
  padding: 0 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-brand-primary);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.lt-ai-search-product-continue:hover:not(:disabled) {
  background: var(--color-brand-primary-hover, #15608f);
}

.lt-ai-search-product-continue:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.lt-ai-search-product-step__hint {
  margin: 0.55rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-text-secondary, #6b7280);
}

/* Active chat: product banner — one row; title truncates so Change product stays inline */
.lt-ai-search__product-banner {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 0.75rem;
  padding: 0.75rem 1.25rem;
  background: rgba(29, 124, 182, 0.08);
  border-bottom: 1px solid var(--color-border, rgba(0,0,0,0.08));
  font-size: 0.875rem;
}

.lt-ai-search__product-banner-main {
  flex: 1;
  min-width: 0;
}

.lt-ai-search__product-banner-title {
  display: block;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.35;
  color: var(--color-text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lt-ai-search__change-product {
  flex-shrink: 0;
  white-space: nowrap;
  padding: 0.35rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-brand-primary);
  background: transparent;
  border: 1px solid var(--color-brand-primary);
  border-radius: 8px;
  cursor: pointer;
}

.lt-ai-search__change-product:hover {
  background: rgba(29, 124, 182, 0.1);
}

/* Fixed frame: header + scrollable thread + composer (input + legal footer) */
.lt-ai-search__conversation {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: min(65vh, 26rem);
  max-height: min(65vh, 26rem);
  overflow: hidden;
}

@supports (height: 1dvh) {
  .lt-ai-search__conversation {
    height: min(65dvh, 26rem);
    max-height: min(65dvh, 26rem);
  }
}

/* Scrollable message list — assistant full-width left; user bubbles right */
.lt-ai-search-messages {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  padding: 0.9rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.75rem;
}

.lt-ai-search-messages__welcome {
  margin: 0;
  align-self: flex-start;
  text-align: left;
  max-width: 100%;
  color: var(--color-text-secondary, #6b7280);
  font-size: 0.9375rem;
}

.lt-ai-search-messages__welcome p {
  margin: 0;
}

/* Message bubbles */
.lt-ai-search-message {
  padding: 0.75rem 1rem;
  border-radius: 14px;
  font-size: 0.9375rem;
  line-height: 1.5;
  word-break: break-word;
}

.lt-ai-search-message__text {
  white-space: pre-wrap;
}

.lt-ai-search-message__text br {
  content: "";
  display: block;
  margin-bottom: 0.25em;
}

/* User: right, capped width */
.lt-ai-search-message--user {
  align-self: flex-end;
  max-width: min(85%, 22rem);
  background: var(--color-brand-primary, #1d7cb6);
  color: var(--color-brand-primary-inverse, #fff);
}

/* Assistant: full thread width, text reads like a normal left-aligned chat */
.lt-ai-search-message--assistant {
  align-self: stretch;
  max-width: 100%;
  text-align: left;
  background: var(--color-bg-secondary, #f3f4f6);
  color: var(--color-text-primary, #111827);
  border: 1px solid var(--color-border, rgba(0,0,0,0.08));
}

.lt-ai-search-message--assistant .lt-ai-search-message__text {
  text-align: left;
}

.lt-ai-search-message--error .lt-ai-search-message__text {
  color: var(--color-danger, #b42318);
}

/* Thinking / loading — no bubble chrome, just label + dots (left-aligned) */
.lt-ai-search-message--assistant.lt-ai-search-message--loading {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0.4rem 0 0.65rem;
  align-self: flex-start;
  max-width: 100%;
}

.lt-ai-search-message--loading .lt-ai-search-message__text {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 1.5em;
}

.lt-ai-search-thinking-label {
  font-weight: 500;
  color: var(--color-text-secondary, #6b7280);
}

.lt-ai-search-typing {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.lt-ai-search-typing span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-brand-primary, #1d7cb6);
  animation: lt-ai-search-bounce 1.4s ease-in-out infinite both;
}

.lt-ai-search-typing span:nth-child(1) { animation-delay: 0s; }
.lt-ai-search-typing span:nth-child(2) { animation-delay: 0.2s; }
.lt-ai-search-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes lt-ai-search-bounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* Input + one-line AI notice (sticky bottom of chat frame) */
.lt-ai-search__composer {
  flex-shrink: 0;
  background: var(--color-bg, #fff);
  border-top: 1px solid var(--color-border, rgba(0,0,0,0.08));
}

.lt-ai-search-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem 0.5rem;
}

.lt-ai-search__legal {
  margin: 0;
  padding: 0 1.25rem 0.65rem;
  font-size: 0.6875rem;
  line-height: 1.4;
  color: var(--color-text-secondary, #6b7280);
}

.lt-ai-search-bar .lt-ai-search-input {
  flex: 1;
  min-width: 0;
  height: 2.75rem;
  padding: 0 1rem;
  font-size: 0.9375rem;
  border: 1px solid var(--input-color-border, rgba(0,0,0,0.2));
  border-radius: 12px;
  background: var(--color-bg);
  color: var(--color-text-primary);
  transition: border-color 0.2s ease;
}

.lt-ai-search-bar .lt-ai-search-input::placeholder {
  color: var(--color-text-secondary);
}

.lt-ai-search-bar .lt-ai-search-input:focus {
  outline: none;
  border-color: var(--color-brand-primary);
}

.lt-ai-search-submit {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 2.75rem;
  height: 2.75rem;
  padding: 0 1rem;
  background: var(--color-brand-primary);
  color: #fff;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-size: 0.9375rem;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.lt-ai-search-submit__icon {
  flex-shrink: 0;
  color: #fff;
}

.lt-ai-search-submit__label {
  color: #fff;
}

.lt-ai-search-submit:hover:not(:disabled) {
  background: var(--color-brand-primary-hover, #15608f);
}

.lt-ai-search-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

@media (max-width: 767px) {
  /* Keep hero copy and AI card inside safe area on notched phones */
  .lt-hero-unit .lt-container-inner[data-search-box] {
    padding-left: max(1rem, env(safe-area-inset-left, 0px));
    padding-right: max(1rem, env(safe-area-inset-right, 0px));
  }

  .lt-hero-unit .lt-hero-unit__heading.h1 {
    font-size: clamp(1.4rem, 5.5vw, 1.85rem);
    line-height: 1.2;
    word-wrap: break-word;
  }

  .lt-hero-unit .lt-hero-unit__content {
    padding-top: 2.75rem;
    padding-bottom: 2rem;
  }
  .lt-ai-search {
    max-width: 100%;
    border-radius: 12px;
  }
  /* One column of dropdowns on narrow screens — easier to scan and tap */
  .lt-ai-search__picks {
    grid-template-columns: 1fr;
  }
  .lt-ai-search__product-banner {
    padding-left: max(0.75rem, env(safe-area-inset-left, 0px));
    padding-right: max(0.75rem, env(safe-area-inset-right, 0px));
  }
  .lt-ai-search__product-banner-title {
    font-size: 0.8125rem;
  }
  .lt-ai-search__conversation {
    height: min(52vh, 22rem);
    max-height: min(52vh, 22rem);
  }
  .lt-ai-search-message--user {
    max-width: min(92%, 20rem);
  }
  .lt-ai-search-bar {
    padding-left: max(0.75rem, env(safe-area-inset-left, 0px));
    padding-right: max(0.75rem, env(safe-area-inset-right, 0px));
  }
  .lt-ai-search__legal {
    padding-left: max(1.25rem, env(safe-area-inset-left, 0px));
    padding-right: max(1.25rem, env(safe-area-inset-right, 0px));
  }
}

@supports (height: 1dvh) {
  @media (max-width: 767px) {
    .lt-ai-search__conversation {
      height: min(52dvh, 22rem);
      max-height: min(52dvh, 22rem);
    }
  }
}