/*
 * Smart-search additions. Append this block to css/custom.css (or include as
 * a separate stylesheet). All rules are namespaced under .smart-search-* or
 * scoped via :has(#siteSearchSubmit), so sites running in the Lunr-fallback
 * path are unaffected.
 */

/* ---------- arrow submit button inside the search bar -------------------- */

.site-search-input-wrap:has(.site-search-submit) .site-search-input {
    padding-right: 3.25rem;
}

.site-search-submit {
    position: absolute;
    top: 50%;
    right: 0.3rem;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 0;
    border-radius: 999px;
    background-color: #0ea5e9;
    color: #ffffff;
    cursor: pointer;
    transition: background-color 120ms ease;
}

.site-search-submit:hover:not(:disabled) {
    background-color: #0284c7;
}

.site-search-submit:hover:not(:disabled) svg {
    transform: translateX(2px);
}

.site-search-submit svg {
    transition: transform 180ms ease;
}

.site-search-submit:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.site-search-submit[data-loading="true"] svg {
    animation: smart-search-spin 1s linear infinite;
}

@keyframes smart-search-spin {
    to { transform: rotate(360deg); }
}

/* Raise the panel unambiguously above the navbar and any dropdowns. A hovered
 * card elsewhere on the page that creates its own stacking context (via
 * transform) stays behind. */
.site-search-nav:has(#siteSearchSubmit) .site-search-panel {
    z-index: 1090;
    isolation: isolate;
}

/* ---------- centered search bar on extra-large screens ------------------- */

/*
 * When smart search is enabled AND the viewport is wide enough that the left
 * nav items (brand + dropdowns like Tutorials/Software) and the right cluster
 * leave real middle space, float the bar into the visual center of the
 * navbar. On anything narrower (including zoomed-in viewports via
 * Ctrl+scroll) the bar falls back to the natural right-aligned flow position
 * so it never overlaps the menu items.
 */
@media (min-width: 1200px) {
    .site-search-nav:has(#siteSearchSubmit) {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        width: min(30rem, 40vw);
    }
}

/* ---------- results panel: wider + centered below input at xl+ ---------- */

@media (min-width: 1200px) {
    .site-search-nav:has(#siteSearchSubmit) .site-search-panel {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        width: min(46rem, 92vw);
        max-height: min(72vh, 38rem);
        border-radius: 1rem;
    }
}

/*
 * Single scrolling container. The existing site CSS sets `overflow: hidden`
 * on .site-search-panel (no max-height) and a separate max-height on
 * .site-search-results. Because the panel is position:absolute inside a
 * fixed navbar, if we don't cap the panel height, overflow has nowhere to
 * scroll to: the last source card literally renders off-viewport and gets
 * clipped mid-card. Fix: cap the panel at ~viewport - navbar and let the
 * whole thing scroll as one unit.
 */
.site-search-nav:has(#siteSearchSubmit) .site-search-panel {
    max-height: min(calc(100vh - 5rem), 40rem);
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
}

.site-search-nav:has(#siteSearchSubmit) .site-search-results {
    max-height: none;
    overflow: visible;
}

/* Smooth entry — default (not centered). */
.site-search-nav:has(#siteSearchSubmit) .site-search-panel {
    animation: smart-search-panel-in-flow 140ms ease-out;
}

@keyframes smart-search-panel-in-flow {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* When centered (xl+), the panel is also translateX-centered, so its
 * entry animation must preserve that X offset. */
@media (min-width: 1200px) {
    .site-search-nav:has(#siteSearchSubmit) .site-search-panel {
        animation: smart-search-panel-in-centered 160ms ease-out;
    }
    @keyframes smart-search-panel-in-centered {
        from { opacity: 0; transform: translate(-50%, -4px); }
        to   { opacity: 1; transform: translate(-50%, 0); }
    }
}

/* ---------- answer block ------------------------------------------------ */

.site-search-answer {
    position: relative;
    padding: 1rem 1.1rem 0.9rem 1.25rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    max-height: min(42vh, 22rem);
    overflow-y: auto;
}

/* Left accent stripe. Scoped to the smart-search panel. */
.site-search-nav:has(#siteSearchSubmit) .site-search-answer::before {
    content: "";
    position: absolute;
    top: 0.9rem;
    bottom: 0.9rem;
    left: 0.5rem;
    width: 3px;
    background-color: #0ea5e9;
    border-radius: 999px;
    opacity: 0.9;
}

.site-search-answer p { margin: 0 0 0.6rem; }
.site-search-answer p:last-child { margin-bottom: 0; }
.site-search-answer strong { font-weight: 600; }
.site-search-answer code {
    background-color: #f3f4f6;
    padding: 0.1em 0.35em;
    border-radius: 0.25rem;
    font-size: 0.9em;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.site-search-answer pre {
    background-color: #f8fafc;
    padding: 0;
    border-radius: 0.5rem;
    overflow: hidden;
    font-size: 0.85em;
    margin: 0.7rem 0;
    border: 1px solid rgba(15, 23, 42, 0.08);
}

/* ---------- smart-code blocks (fenced code with header + copy) --------- */

.site-search-answer pre.smart-code {
    background-color: #f8fafc;
    padding: 0;
    margin: 0.7rem 0;
}

.smart-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.35rem 0.7rem;
    background-color: #eef2f7;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    font-size: 0.7rem;
    color: #475569;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.smart-code-lang {
    text-transform: lowercase;
    letter-spacing: 0.02em;
}

.smart-code-copy {
    border: 0;
    background: transparent;
    color: #475569;
    font-size: 0.7rem;
    font-family: inherit;
    cursor: pointer;
    padding: 0.15rem 0.45rem;
    border-radius: 0.25rem;
    transition: background-color 120ms ease, color 120ms ease;
}

.smart-code-copy:hover {
    background-color: rgba(15, 23, 42, 0.08);
    color: #1f2937;
}

.smart-code-copy[data-state="copied"] {
    color: #047857;
}

.smart-code-copy[data-state="error"] {
    color: #b91c1c;
}

.site-search-answer pre.smart-code code {
    display: block;
    padding: 0.7rem 0.9rem;
    background: transparent;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.82rem;
    line-height: 1.5;
    color: #0f172a;
    overflow-x: auto;
    white-space: pre;
}

.site-search-answer pre.smart-code code::-webkit-scrollbar { height: 6px; }
.site-search-answer pre.smart-code code::-webkit-scrollbar-thumb {
    background-color: rgba(15, 23, 42, 0.15);
    border-radius: 3px;
}

/* ---------- minimal highlight.js theme (GitHub-ish) -------------------- */

.site-search-answer .hljs-comment,
.site-search-answer .hljs-quote { color: #6a737d; font-style: italic; }
.site-search-answer .hljs-keyword,
.site-search-answer .hljs-selector-tag,
.site-search-answer .hljs-subst { color: #d73a49; }
.site-search-answer .hljs-number,
.site-search-answer .hljs-literal,
.site-search-answer .hljs-variable,
.site-search-answer .hljs-template-variable,
.site-search-answer .hljs-tag .hljs-attr { color: #005cc5; }
.site-search-answer .hljs-string,
.site-search-answer .hljs-doctag { color: #032f62; }
.site-search-answer .hljs-title,
.site-search-answer .hljs-section,
.site-search-answer .hljs-selector-id { color: #6f42c1; font-weight: 600; }
.site-search-answer .hljs-type,
.site-search-answer .hljs-class .hljs-title { color: #6f42c1; }
.site-search-answer .hljs-tag,
.site-search-answer .hljs-name,
.site-search-answer .hljs-attribute { color: #22863a; }
.site-search-answer .hljs-regexp,
.site-search-answer .hljs-link { color: #032f62; }
.site-search-answer .hljs-symbol,
.site-search-answer .hljs-bullet { color: #e36209; }
.site-search-answer .hljs-built_in,
.site-search-answer .hljs-builtin-name { color: #005cc5; }
.site-search-answer .hljs-meta { color: #6a737d; }
.site-search-answer .hljs-deletion { background-color: #ffeef0; }
.site-search-answer .hljs-addition { background-color: #f0fff4; }
.site-search-answer .hljs-emphasis { font-style: italic; }
.site-search-answer .hljs-strong { font-weight: 700; }
.site-search-answer a { color: #0284c7; text-decoration: none; }
.site-search-answer a:hover { text-decoration: underline; }

.site-search-answer sup a {
    display: inline-block;
    padding: 0 0.25rem;
    margin: 0 0.05rem;
    background-color: #e0f2fe;
    color: #075985;
    border-radius: 0.25rem;
    font-size: 0.7em;
    font-weight: 600;
    text-decoration: none;
}
.site-search-answer sup a:hover {
    background-color: #bae6fd;
    text-decoration: none;
}

/* Small hint row above the list when in preview mode. */
.site-search-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0.5rem 1rem 0.55rem;
    background-color: #fafafa;
    border-bottom: 1px solid rgba(15, 23, 42, 0.05);
    font-size: 0.72rem;
    color: #6b7280;
}

.smart-search-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
    background-color: #f1f5f9;
    font-variant-numeric: tabular-nums;
}

.smart-search-badge-hint {
    background-color: #fef3c7;
    color: #92400e;
}

/* ---------- citation cards --------------------------------------------- */

.smart-search-citation {
    padding: 0.75rem 1rem !important;
    /* Bootstrap's .list-group-item uses rgba(0,0,0,0.125) — a crisp dark
     * line between cards. Soften to a barely-there separator. */
    border-color: rgba(15, 23, 42, 0.06) !important;
}

/* Remove the outer border on first/last cards so the list visually melts
 * into the answer block above and the panel edge below. */
.smart-search-citation:first-child {
    border-top: 0 !important;
}
.smart-search-citation:last-child {
    border-bottom: 0 !important;
}

.smart-search-citation-row {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 0.75rem;
    align-items: start;
}

.smart-search-citation-index {
    flex-shrink: 0;
    width: 1.6rem;
    height: 1.6rem;
    background-color: #e0f2fe;
    color: #075985;
    border-radius: 0.45rem;
    font-size: 0.78rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    margin-top: 0.1rem;
}

.smart-search-citation-body {
    min-width: 0;
}

.smart-search-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.72rem;
    color: #64748b;
    text-transform: capitalize;
    margin-bottom: 0.1rem;
    overflow: hidden;
}

.smart-search-breadcrumb-sep {
    color: #cbd5e1;
}

.smart-search-citation-title {
    font-weight: 600;
    font-size: 0.97rem;
    color: #111827;
    line-height: 1.3;
    margin-bottom: 0.2rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.smart-search-citation-snippet {
    font-size: 0.835rem;
    line-height: 1.45;
    color: #475569;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.smart-search-citation-score {
    flex-shrink: 0;
    align-self: start;
    margin-top: 0.25rem;
    font-size: 0.7rem;
    font-weight: 600;
    color: #94a3b8;
    background-color: #f8fafc;
    padding: 0.1rem 0.4rem;
    border-radius: 999px;
    font-variant-numeric: tabular-nums;
}

/* ---------- popular queries (empty-input suggestions) ------------------ */

.smart-search-popular {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    padding: 0.75rem 1rem 0.95rem;
    background-color: #ffffff;
}

.smart-search-popular-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.4rem 0.8rem;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 999px;
    background-color: #f8fafc;
    color: #1f2937;
    font-size: 0.85rem;
    line-height: 1.2;
    text-align: left;
    cursor: pointer;
    transition: background-color 120ms ease, border-color 120ms ease, transform 80ms ease;
}

.smart-search-popular-chip:hover,
.smart-search-popular-chip:focus {
    background-color: #eef2f7;
    border-color: rgba(15, 23, 42, 0.18);
    outline: 0;
}

.smart-search-popular-chip:active {
    transform: translateY(1px);
}

.smart-search-popular-query {
    max-width: 22rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.smart-search-popular-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.35rem;
    padding: 0 0.35rem;
    height: 1.25rem;
    background-color: #e0f2fe;
    color: #075985;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* ---------- hover / focus override (neutral, very light) ---------------- */

/*
 * Bootstrap's .list-group-item-action gives source cards a tinted blue-gray
 * hover and a 0.25rem focus ring. Override to a near-neutral wash so the
 * card highlights without competing with the answer block. Scoped via the
 * smart-search specific class so Lunr fallback cards are untouched.
 */
.smart-search-citation {
    transition: background-color 120ms ease;
}

/*
 * Hover / focus / active: keep the card essentially white so the body text
 * stays fully readable, and force the text back to its normal color (Bootstrap
 * swaps it to a muted #495057 grey on hover, which is what makes the content
 * look washed out). !important + a high-specificity selector are used because
 * Bootstrap's own .list-group-item-action:hover sits on the same cascade
 * level and ships after our stylesheet.
 */
.smart-search-citation.list-group-item-action:hover,
.smart-search-citation.list-group-item-action:focus {
    background-color: #f3f6fb !important;
    color: #1f2937 !important;
    box-shadow: inset 3px 0 0 rgba(14, 165, 233, 0.55) !important;
    outline: 0 !important;
}

.smart-search-citation.list-group-item-action:active {
    background-color: #e8eef7 !important;
    color: #1f2937 !important;
    box-shadow: inset 3px 0 0 rgba(14, 165, 233, 0.7) !important;
    outline: 0 !important;
}

.smart-search-citation.list-group-item-action:hover .smart-search-citation-title,
.smart-search-citation.list-group-item-action:focus .smart-search-citation-title,
.smart-search-citation.list-group-item-action:active .smart-search-citation-title {
    color: #111827 !important;
}

.smart-search-citation.list-group-item-action:hover .smart-search-citation-snippet,
.smart-search-citation.list-group-item-action:focus .smart-search-citation-snippet,
.smart-search-citation.list-group-item-action:active .smart-search-citation-snippet {
    color: #334155 !important;
}

.smart-search-citation.list-group-item-action:focus-visible {
    outline: 2px solid rgba(14, 165, 233, 0.55) !important;
    outline-offset: -2px;
}

/* ---------- small-screen adjustments ------------------------------------- */

@media (max-width: 767.98px) {
    .site-search-answer { max-height: min(50vh, 24rem); }
}

@media (max-width: 575.98px) {
    /* On very small screens, center and widen the panel to fill the viewport. */
    .site-search-nav:has(#siteSearchSubmit) .site-search-panel {
        width: calc(100vw - 1rem);
        right: -0.25rem;
    }
    .smart-search-citation-title { font-size: 0.92rem; }
}