/**
 * MxChat AI Search — [mxchat_ai_search] embeddable search box.
 *
 * The ONE surface where the add-on deliberately styles a component: the owner
 * opts into this by placing the shortcode, so it gets a clean hero-style pill
 * input (rounded, site-font, subtle border, accent send button) — docs-bot-hero
 * quality, not a default input. The RESULTS below reuse the shared
 * .mxchat-search-* classes from search-overview.css, so answers, chips, and
 * cards look identical to the overlay/replace renderers.
 *
 * Accent color: --mxchat-ais-accent (brand #7873f5 by default, overridable per
 * instance via the accent_color shortcode attribute). Light/dark aware.
 */

.mxchat-ai-search {
    --mxchat-ais-accent: #7873f5;
    --mxchat-ais-fg: #1f2328;
    --mxchat-ais-muted: #6b7280;
    --mxchat-ais-bg: #ffffff;
    --mxchat-ais-border: rgba(17, 24, 39, 0.14);
    --mxchat-ais-shadow: 0 1px 2px rgba(17, 24, 39, 0.05);
    --mxchat-ais-shadow-focus: 0 6px 24px rgba(120, 115, 245, 0.18);

    margin: 20px auto;
    font-family: inherit;
    box-sizing: border-box;
    width: 100%;
}
.mxchat-ai-search *,
.mxchat-ai-search *::before,
.mxchat-ai-search *::after { box-sizing: border-box; }

/* Width presets (the block's max-width; the box always centers in its column). */
.mxchat-ai-search--align-narrow { max-width: 560px; }
.mxchat-ai-search--align-wide   { max-width: 820px; }
.mxchat-ai-search--align-full   { max-width: 100%; }

/* ---- The hero pill input ---- */
.mxchat-ai-search__form {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 6px 6px 16px;
    background: var(--mxchat-ais-bg);
    border: 1px solid var(--mxchat-ais-border);
    border-radius: 999px;
    box-shadow: var(--mxchat-ais-shadow);
    transition: border-color 0.16s ease, box-shadow 0.16s ease;
}
.mxchat-ai-search__form:focus-within {
    border-color: var(--mxchat-ais-accent);
    box-shadow: var(--mxchat-ais-shadow-focus);
}

.mxchat-ai-search__spark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    color: var(--mxchat-ais-accent);
    opacity: 0.9;
}

.mxchat-ai-search__input {
    flex: 1 1 auto;
    min-width: 0;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--mxchat-ais-fg);
    font-family: inherit;
    font-size: 16px;      /* >=16px avoids iOS zoom-on-focus */
    line-height: 1.5;
    padding: 8px 2px;
    margin: 0;
    box-shadow: none;
    -webkit-appearance: none;
    appearance: none;
}
.mxchat-ai-search__input::placeholder { color: var(--mxchat-ais-muted); opacity: 1; }
/* Hide the native search "clear" affordance so the pill stays clean. */
.mxchat-ai-search__input::-webkit-search-decoration,
.mxchat-ai-search__input::-webkit-search-cancel-button { -webkit-appearance: none; }

.mxchat-ai-search__submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    height: 44px;
    width: 44px;
    padding: 0;
    border: 0;
    border-radius: 999px;
    background: var(--mxchat-ais-accent);
    color: #ffffff;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    line-height: 1;
    transition: filter 0.15s ease, transform 0.15s ease, opacity 0.15s ease;
}
.mxchat-ai-search__submit--text {
    width: auto;
    padding: 0 20px;
}
.mxchat-ai-search__submit:hover { filter: brightness(1.06); transform: translateY(-1px); }
.mxchat-ai-search__submit:active { transform: translateY(0); }
.mxchat-ai-search__submit:focus-visible {
    outline: 2px solid var(--mxchat-ais-accent);
    outline-offset: 2px;
}
.mxchat-ai-search__icon { display: block; }

/* Busy state: spin the send icon + dim the button. */
.mxchat-ai-search.is-busy .mxchat-ai-search__submit { opacity: 0.75; cursor: progress; }
.mxchat-ai-search.is-busy .mxchat-ai-search__icon { animation: mxchat-ais-spin 0.9s linear infinite; }
@keyframes mxchat-ais-spin { to { transform: rotate(360deg); } }

/* ---- Results region ---- */
.mxchat-ai-search__results:empty { display: none; }
.mxchat-ai-search__results { margin-top: 6px; }
/* Neutralize the overlay renderer's top margin inside the box (it sits close to
   the input, not floating in a results page). */
.mxchat-ai-search__results .mxchat-search-overview { margin: 18px 0 0; }

/* "full" mode inside the box: render the source cards in a responsive grid
   instead of the page rail (there is no two-column results page here). */
.mxchat-ai-search__cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 4px;
}

/* Quiet no-answer / error line. */
.mxchat-ai-search__msg .mxchat-search-overview__inner {
    padding: 14px 0 0;
    border-bottom: 0;
}

/* ---- Dark-mode adaptation (input pill only; results follow the shared CSS) ---- */
@media (prefers-color-scheme: dark) {
    .mxchat-ai-search {
        --mxchat-ais-fg: #e8e9ec;
        --mxchat-ais-muted: #9aa1ab;
        --mxchat-ais-bg: #1c1d22;
        --mxchat-ais-border: rgba(255, 255, 255, 0.14);
        --mxchat-ais-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    }
}

/* ---- Responsive ---- */
@media (max-width: 480px) {
    .mxchat-ai-search__submit { height: 42px; width: 42px; }
    .mxchat-ai-search__input { font-size: 16px; }
}