/* Guides, Help Center and Glossary (/guides, /help, /glossary and their pages). Scoped to .kh.
   Quiet by design: one accent, hairline dividers, generous space, no shadows.
   Logical properties throughout, so the file mirrors itself under dir="rtl";
   knowledge_hub.rtl.css holds only what they cannot express. */

.kh {
    --kh-text: #eceff4;
    --kh-body: #d5d9e2;
    --kh-muted: #9aa3b5;
    --kh-faint: #6f788c;
    --kh-line: rgba(255, 255, 255, .08);
    --kh-line-strong: rgba(255, 255, 255, .16);
    --kh-surface: rgba(255, 255, 255, .025);
    --kh-surface-hover: rgba(255, 255, 255, .05);
    --kh-accent: #95ab52;
    --kh-accent-soft: rgba(149, 171, 82, .12);
    --kh-accent-ring: rgba(149, 171, 82, .35);
    --kh-on-accent: #0e121e;
    --kh-focus: #ffdc11;
    --kh-radius: 12px;
    --kh-measure: 72ch;
    --kh-sticky: 96px;

    color: var(--kh-text);
    /* The floating chat and back-to-top buttons sit over the last screen of the page. */
    padding-block: 12px 120px;
}

.kh *,
.kh *::before,
.kh *::after { box-sizing: border-box; }

.kh [hidden] { display: none !important; }

.kh :focus-visible {
    outline: 2px solid var(--kh-focus);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ===== Breadcrumb ============================================================== */

.kh-crumbs ol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    list-style: none;
    margin: 0 0 20px;
    padding: 0;
    font-size: .8125rem;
    line-height: 1.5;
    color: var(--kh-faint);
}

.kh-crumbs li {
    display: inline-flex;
    align-items: center;
    min-width: 0;
}

.kh-crumbs li + li::before {
    content: "/";
    margin-inline: 8px;
    color: var(--kh-line-strong);
}

.kh-crumbs a {
    color: var(--kh-muted);
    text-decoration: none;
}

.kh-crumbs a:hover { color: var(--kh-text); }

.kh-crumbs [aria-current] {
    color: var(--kh-text);
    max-width: 70vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== Page head =============================================================== */

.kh-head {
    padding-block: 4px 28px;
    margin-block-end: 32px;
    border-block-end: 1px solid var(--kh-line);
}

.kh .kh-head__title {
    margin: 0 0 12px;
    font-size: clamp(1.75rem, 1.3rem + 1.8vw, 2.5rem);
    line-height: 1.15;
    font-weight: 700;
    letter-spacing: -.01em;
    color: var(--kh-text);
}

.kh-head__lead {
    max-width: 62ch;
    margin: 0;
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--kh-muted);
}

.kh-head__meta {
    margin: 14px 0 0;
    font-size: .8125rem;
    color: var(--kh-faint);
}

.kh-head__meta time { color: var(--kh-muted); }

/* ===== Sections ================================================================ */

.kh-section { margin-block-end: 44px; }

.kh .kh-section__title {
    margin: 0 0 14px;
    font-size: 1.25rem;
    line-height: 1.3;
    font-weight: 700;
    color: var(--kh-text);
    scroll-margin-top: var(--kh-sticky);
}

.kh-group__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
}

.kh-group__more {
    flex: none;
    font-size: .875rem;
    font-weight: 600;
    color: var(--kh-accent);
    text-decoration: none;
}

.kh-group__more:hover { color: var(--kh-text); }

/* Long rows read badly across a 1320px container. */
.kh--hub .kh-group,
.kh--hub .kh-defs,
.kh--hub .kh-empty { max-width: 880px; }

/* ===== Topic cards (and glossary term cards) =================================== */

.kh-topics,
.kh-terms {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    list-style: none;
    margin: 0 0 36px;
    padding: 0;
}

@media (min-width: 768px) {
    .kh-topics,
    .kh-terms { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
}

@media (min-width: 1200px) {
    .kh-topics,
    .kh-terms { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.kh-topics__item,
.kh-terms__item { min-width: 0; }

.kh-topic {
    display: flex;
    flex-direction: column;
    gap: 6px;
    height: 100%;
    padding: 20px 20px 18px;
    border: 1px solid var(--kh-line);
    border-radius: var(--kh-radius);
    background-color: var(--kh-surface);
    color: var(--kh-text);
    text-decoration: none;
}

.kh-topic:hover {
    border-color: var(--kh-line-strong);
    background-color: var(--kh-surface-hover);
    color: var(--kh-text);
}

.kh-topic__title {
    font-size: 1.0625rem;
    line-height: 1.34;
    font-weight: 600;
}

.kh-topic:hover .kh-topic__title { color: var(--kh-accent); }

.kh-topic__desc {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-height: 2.9em;
    font-size: .9375rem;
    line-height: 1.45;
    color: var(--kh-muted);
}

.kh-topic__count {
    margin-block-start: auto;
    padding-block-start: 10px;
    font-size: .8125rem;
    font-weight: 600;
    color: var(--kh-accent);
}

/* ===== Title filter ============================================================ */

.kh-filter {
    max-width: 560px;
    margin-block: 4px 32px;
}

.kh .kh-filter__input {
    height: 48px;
    padding-inline: 20px;
    border: 1px solid var(--kh-line-strong);
    border-radius: 999px;
    background-color: rgba(255, 255, 255, .04);
    color: var(--kh-text);
    font-size: 1rem; /* 16px keeps iOS from zooming on focus */
}

.kh .kh-filter__input::placeholder { color: var(--kh-faint); }

.kh .kh-filter__input:focus {
    border-color: var(--kh-accent);
    background-color: rgba(255, 255, 255, .06);
    color: var(--kh-text);
    box-shadow: 0 0 0 3px var(--kh-accent-ring);
    outline: none;
}

.kh-filter__status {
    min-height: 1.25em;
    margin: 8px 0 0;
    padding-inline: 20px;
    font-size: .8125rem;
    color: var(--kh-faint);
}

.kh-empty {
    margin-block: 8px 32px;
    color: var(--kh-muted);
}

.kh-empty a,
.kh-back a {
    color: var(--kh-accent);
    font-weight: 600;
    text-decoration: none;
}

.kh-empty a:hover,
.kh-back a:hover { color: var(--kh-text); }

/* ===== Article lists =========================================================== */

.kh-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-block-start: 1px solid var(--kh-line);
}

.kh-list__item { border-block-end: 1px solid var(--kh-line); }

.kh-list__link {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-block: 16px;
    padding-inline: 4px 40px;
    color: var(--kh-text);
    text-decoration: none;
}

.kh-list__link:hover { color: var(--kh-text); }

/* The chevron. Its direction is mirrored in knowledge_hub.rtl.css. */
.kh-list__link::after {
    content: "";
    position: absolute;
    inset-inline-end: 12px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-block-start: 2px solid currentColor;
    border-inline-end: 2px solid currentColor;
    color: var(--kh-faint);
    transform: translateY(-50%) rotate(45deg);
}

.kh-list__link:hover::after { color: var(--kh-accent); }

.kh-list__title {
    font-size: 1rem;
    line-height: 1.4;
    font-weight: 600;
}

.kh-list__link:hover .kh-list__title { color: var(--kh-accent); }

.kh-list__desc {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-height: 2.9em;
    font-size: .9375rem;
    line-height: 1.45;
    color: var(--kh-muted);
}

.kh-list__meta {
    font-size: .75rem;
    color: var(--kh-faint);
}

/* ===== Glossary: A-Z bar, cards, inline definitions ============================ */

.kh-az { margin-block: 0 28px; }

.kh-az ol {
    display: flex;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0 0 4px;
    overflow-x: auto;
    scrollbar-width: none;
}

.kh-az ol::-webkit-scrollbar { display: none; }

@media (min-width: 768px) {
    .kh-az ol { flex-wrap: wrap; overflow: visible; }
}

.kh-az li { flex: none; }

.kh-az a,
.kh-az span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding-inline: 6px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: .9375rem;
    font-weight: 600;
    line-height: 1;
}

.kh-az a {
    border-color: var(--kh-line);
    color: var(--kh-text);
    text-decoration: none;
}

.kh-az a:hover {
    border-color: var(--kh-accent);
    color: var(--kh-accent);
}

.kh-az span { color: rgba(255, 255, 255, .2); }

.kh-anchor {
    display: block;
    height: 0;
    scroll-margin-top: var(--kh-sticky);
}

.kh-defs {
    margin: 0;
    border-block-start: 1px solid var(--kh-line);
}

.kh-defs__item {
    padding-block: 20px;
    border-block-end: 1px solid var(--kh-line);
    scroll-margin-top: var(--kh-sticky);
}

.kh-defs__item:target {
    padding-inline: 16px;
    border-radius: var(--kh-radius);
    background-color: var(--kh-accent-soft);
}

.kh-defs__term {
    margin: 0 0 6px;
    font-size: 1.0625rem;
    line-height: 1.35;
    font-weight: 700;
    color: var(--kh-text);
}

.kh-defs__term dfn { font-style: normal; }

.kh .kh-defs__def {
    margin: 0;
    font-size: 1rem;
}

.kh .kh-defs__def > :last-child { margin-block-end: 0; }

/* ===== Article page ============================================================ */

@media (min-width: 992px) {
    .kh-layout { --bs-gutter-x: 3.5rem; }
}

.kh-head--page { margin-block-end: 28px; }

.kh-figure { margin: 0 0 28px; }

.kh-figure img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--kh-radius);
}

.kh-prose {
    max-width: var(--kh-measure);
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--kh-body);
    overflow-wrap: break-word;
}

.kh-prose p { margin: 0 0 1.1em; }

.kh .kh-prose h2 {
    margin: 2em 0 .6em;
    font-size: 1.375rem;
    line-height: 1.3;
    font-weight: 700;
    color: var(--kh-text);
    scroll-margin-top: var(--kh-sticky);
}

.kh .kh-prose h3 {
    margin: 1.6em 0 .5em;
    font-size: 1.125rem;
    line-height: 1.35;
    font-weight: 700;
    color: var(--kh-text);
    scroll-margin-top: var(--kh-sticky);
}

.kh-prose > :first-child,
.kh .kh-prose > h2:first-child { margin-block-start: 0; }

.kh-prose a {
    color: var(--kh-accent);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.kh-prose a:hover { color: var(--kh-text); }

.kh-prose ul,
.kh-prose ol {
    margin: 0 0 1.1em;
    padding-inline-start: 1.3em;
}

.kh-prose li { margin-block-end: .4em; }

.kh-prose img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.kh-prose iframe { width: 100%; max-width: 100%; }

.kh-prose table {
    display: block;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    margin: 0 0 1.4em;
    border-collapse: collapse;
    font-size: .9375rem;
    line-height: 1.5;
}

.kh-prose th,
.kh-prose td {
    padding: 10px 12px;
    border-block-end: 1px solid var(--kh-line);
    text-align: start;
    vertical-align: top;
}

.kh-prose th {
    color: var(--kh-text);
    font-weight: 600;
    border-block-end-color: var(--kh-line-strong);
}

.kh-prose blockquote {
    margin: 1.4em 0;
    padding-inline-start: 16px;
    border-inline-start: 2px solid var(--kh-accent);
    color: var(--kh-muted);
}

.kh-prose hr {
    margin: 2em 0;
    border: 0;
    border-block-start: 1px solid var(--kh-line);
    opacity: 1;
}

.kh-back { margin-block: 32px 0; }

/* ===== Table of contents ======================================================= */

.kh-toc__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.kh-toc__list a {
    display: block;
    padding-block: 7px;
    padding-inline: 14px 0;
    border-inline-start: 1px solid var(--kh-line);
    color: var(--kh-muted);
    font-size: .9375rem;
    line-height: 1.4;
    text-decoration: none;
}

.kh-toc__list a:hover {
    border-inline-start-color: var(--kh-accent);
    color: var(--kh-text);
}

.kh-toc__label,
.kh .kh-rail__title {
    margin: 0 0 12px;
    font-size: .75rem;
    line-height: 1.4;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--kh-faint);
}

/* Phones and tablets: collapsed above the text. */
.kh-toc--inline {
    margin: 0 0 28px;
    border: 1px solid var(--kh-line);
    border-radius: var(--kh-radius);
    background-color: var(--kh-surface);
}

.kh-toc__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 48px;
    padding: 12px 16px;
    list-style: none;
    font-size: .9375rem;
    font-weight: 600;
    cursor: pointer;
}

.kh-toc__summary::-webkit-details-marker { display: none; }

/* Down-pointing chevrons: "down" does not mirror, so these use physical borders. */
.kh-toc__summary::after,
.kh-qa__q::after {
    content: "";
    flex: none;
    width: 8px;
    height: 8px;
    margin-block-start: -4px;
    border-bottom: 2px solid currentColor;
    border-right: 2px solid currentColor;
    color: var(--kh-faint);
    transform: rotate(45deg);
}

.kh-toc--inline[open] .kh-toc__summary::after,
.kh-qa__item[open] > .kh-qa__q::after {
    margin-block-start: 4px;
    transform: rotate(-135deg);
}

.kh-toc--inline .kh-toc__list { padding: 0 16px 14px; }

/* From lg up: sticky in the side rail. */
.kh-toc--rail {
    position: sticky;
    top: var(--kh-sticky);
    max-height: calc(100vh - var(--kh-sticky) - 24px);
    overflow-y: auto;
    padding-block: 4px;
}

/* ===== Help: question accordion ================================================ */

.kh-qa {
    margin-block: 8px 1.4em;
    border-block-start: 1px solid var(--kh-line);
}

.kh-qa__item { border-block-end: 1px solid var(--kh-line); }

.kh-qa__q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-block: 16px;
    list-style: none;
    cursor: pointer;
}

.kh-qa__q::-webkit-details-marker { display: none; }

.kh .kh-prose .kh-qa__q h2 {
    margin: 0;
    font-size: 1.0625rem;
    line-height: 1.45;
    font-weight: 600;
}

.kh-qa__q:hover h2,
.kh-qa__item[open] > .kh-qa__q h2 { color: var(--kh-accent); }

.kh-qa__a { padding-block: 0 12px; }

.kh-qa__a > :last-child { margin-block-end: 0; }

/* ===== Related, help CTA, rail, products ======================================= */

.kh-related { margin-block: 48px 0; }

.kh-cta {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-block: 48px 0;
    padding: 24px;
    border: 1px solid var(--kh-line);
    border-radius: var(--kh-radius);
    background-color: var(--kh-surface);
}

.kh--hub .kh-cta { max-width: 880px; }

.kh .kh-cta__title {
    margin: 0;
    font-size: 1.125rem;
    line-height: 1.3;
    font-weight: 700;
    color: var(--kh-text);
}

.kh-cta__text {
    margin: 0;
    color: var(--kh-muted);
}

.kh .kh-cta__link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    margin-block-start: 8px;
    padding-inline: 22px;
    border-radius: 999px;
    background-color: var(--kh-accent);
    color: var(--kh-on-accent);
    font-weight: 600;
    text-decoration: none;
}

.kh .kh-cta__link:hover {
    color: var(--kh-on-accent);
    box-shadow: 0 0 0 3px var(--kh-accent-ring);
}

.kh-rail__list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-block-start: 1px solid var(--kh-line);
}

.kh-rail__list a {
    display: block;
    padding-block: 10px;
    border-block-end: 1px solid var(--kh-line);
    color: var(--kh-muted);
    text-decoration: none;
}

.kh-rail__list a:hover { color: var(--kh-accent); }

.kh--topic .col-lg-4 { margin-block-start: 8px; }

@media (min-width: 992px) {
    .kh-rail {
        position: sticky;
        top: var(--kh-sticky);
    }

    .kh--topic .col-lg-4 { margin-block-start: 0; }
}

.kh-products {
    margin-block-start: 48px;
    padding-block-start: 8px;
    border-block-start: 1px solid var(--kh-line);
}

/* ===== Arabic ================================================================== */
/* Tajawal is forced by custom.rtl.css. Arabic script must not be tracked. */

.kh[dir="rtl"] .kh-head__title,
.kh[dir="rtl"] .kh-toc__label,
.kh[dir="rtl"] .kh-rail__title {
    letter-spacing: 0;
    text-transform: none;
}

.kh[dir="rtl"] .kh-prose { line-height: 1.8; }

/* ===== Motion ================================================================== */

@media (prefers-reduced-motion: no-preference) {
    .kh-topic {
        transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
    }

    .kh-topic:hover { transform: translateY(-2px); }

    .kh-toc__summary::after,
    .kh-qa__q::after {
        transition: transform .2s ease;
    }

    .kh-list__title,
    .kh-topic__title,
    .kh-toc__list a,
    .kh-qa__q h2 {
        transition: color .15s ease, border-color .15s ease;
    }

    .kh-defs__item:target { animation: kh-target-in .5s ease; }

    @keyframes kh-target-in {
        from { opacity: .4; }
        to { opacity: 1; }
    }
}