/* =========================================================
   Knowledge Centre (Knowledge custom post type)
   Loaded only on Knowledge screens (see inc/cpt-knowledge.php).
   Uses the tokens defined at the top of style.css.

   Archive / category / tag / search layout:
     title banner (breadcrumb + search)
     article list (main column)  |  sidebar (form, categories, tags, recent)
   Single article layout is further down:
     image banner, reading column with Table of Contents, related
     articles, Get in Touch form.
   ========================================================= */

.kn-sr-only {
	position: absolute !important;
	width: 1px; height: 1px;
	padding: 0; margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* ---------------- Banner (archive) ---------------- */
/* The shared .inner-banner clips its contents; the search panel drops
   below the banner, so this one must not. */
.kn-banner { overflow: visible; z-index: 3; }
.kn-banner-tools { display: flex; align-items: center; gap: 18px; }

.kn-search { position: relative; }
.kn-search > summary {
	list-style: none;
	display: flex; align-items: center; justify-content: center;
	width: 40px; height: 40px;
	border-radius: 50%;
	background: rgba(255, 255, 255, .14);
	color: #fff;
	cursor: pointer;
	transition: background .2s ease;
}
.kn-search > summary::-webkit-details-marker { display: none; }
.kn-search > summary:hover,
.kn-search[open] > summary { background: var(--color-accent); }
.kn-search > summary:focus-visible { outline: 2px solid var(--color-accent-light); outline-offset: 2px; }

.kn-search-form {
	position: absolute;
	right: 0;
	top: calc(100% + 12px);
	z-index: 10;
	display: flex;
	gap: 8px;
	width: min(380px, 86vw);
	padding: 12px;
	background: #fff;
	border-radius: var(--radius);
	box-shadow: 0 18px 40px rgba(20, 30, 40, .22);
}
.kn-search-form input[type="search"] {
	flex: 1;
	min-width: 0;
	padding: 10px 16px;
	border: 1px solid var(--color-border);
	border-radius: 999px;
	font: inherit;
	font-size: .95rem;
	color: var(--color-text);
}
.kn-search-form input[type="search"]:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; border-color: var(--color-accent); }
.kn-search-form .btn { padding: 10px 20px; cursor: pointer; }

/* ---------------- Layout ---------------- */
.kn-archive { padding: 44px 20px 70px; }
.kn-layout {
	display: grid;
	grid-template-columns: minmax(0, 1fr) 340px;
	gap: 40px;
	align-items: start;
}
/* To move the sidebar to the left of the list, uncomment:
.kn-sidebar { order: -1; }
.kn-layout { grid-template-columns: 340px minmax(0, 1fr); }
*/

.kn-intro { margin: 0 0 28px; max-width: 62ch; color: var(--color-muted); }

/* ---------------- Article cards ---------------- */
.kn-list { display: flex; flex-direction: column; gap: 24px; }

.kn-card {
	display: grid;
	grid-template-columns: 260px minmax(0, 1fr);
	background: #fff;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
	overflow: hidden;
}
.kn-card-media { display: block; background: var(--color-bg-soft); }
.kn-card-media img,
.kn-card-media .ca-img-placeholder {
	width: 100%;
	height: 100%;
	min-height: 210px;
	object-fit: cover;
	border-radius: 0;
}
.kn-card-body { display: flex; flex-direction: column; align-items: flex-start; padding: 24px 26px; }

.kn-card-meta {
	display: flex; flex-wrap: wrap; align-items: center; gap: 4px 0;
	margin-bottom: 8px;
	font-size: .8rem;
	color: var(--color-muted);
}
.kn-card-meta > * + * { margin-left: 10px; padding-left: 10px; border-left: 1px solid var(--color-border); }
.kn-card-meta > .kn-badge { margin-right: 0; }
.kn-card-meta > .kn-badge + * { margin-left: 10px; padding-left: 0; border-left: 0; }
.kn-card-type { color: var(--color-accent); font-weight: 600; }

.kn-badge {
	display: inline-block;
	padding: 2px 10px;
	border-radius: 999px;
	background: var(--color-accent);
	color: #fff;
	font-size: .75rem;
	font-weight: 600;
	line-height: 1.6;
}

.kn-card-title { margin: 0 0 6px; font-size: 1.3rem; line-height: 1.3; }
.kn-card-title a { color: var(--color-navy); }
.kn-card-title a:hover { color: var(--color-accent); }
.kn-card-title a:focus-visible,
.kn-tag:focus-visible,
.kn-recent-item:focus-visible,
.kn-cat-list a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }

.kn-card-author { margin: 0 0 10px; font-size: .9rem; color: var(--color-muted); }
.kn-card-author .kn-author-name { color: var(--color-navy); font-weight: 600; }

.kn-card-excerpt {
	display: -webkit-box;
	-webkit-box-orient: vertical;
	-webkit-line-clamp: 4;
	line-clamp: 4;
	overflow: hidden;
	margin: 0 0 18px;
	color: var(--color-text);
	font-size: .95rem;
}
.kn-card-btn { margin-top: auto; }

/* Stacked variant: image on top (related articles). */
.kn-card--stack { grid-template-columns: 1fr; }
.kn-card--stack .kn-card-media img,
.kn-card--stack .kn-card-media .ca-img-placeholder { height: 190px; min-height: 190px; }
.kn-card--stack .kn-card-body { padding: 20px; }
.kn-card--stack .kn-card-title { font-size: 1.1rem; }
.kn-card--stack .kn-card-excerpt { -webkit-line-clamp: 3; line-clamp: 3; }

.kn-empty {
	padding: 32px;
	border: 1px dashed var(--color-border);
	border-radius: var(--radius);
	background: var(--color-bg-soft);
	color: var(--color-muted);
}
.kn-empty p:last-child { margin-bottom: 0; }
.kn-empty a { color: var(--color-accent); text-decoration: underline; }

/* ---------------- Pagination ---------------- */
.kn-pagination { margin-top: 36px; }
.kn-pagination ul.page-numbers { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.kn-pagination a.page-numbers,
.kn-pagination span.page-numbers {
	display: inline-flex; align-items: center; justify-content: center;
	min-width: 40px; height: 40px;
	padding: 0 12px;
	border: 1px solid var(--color-border);
	border-radius: 8px;
	background: #fff;
	color: var(--color-navy);
	font-size: .92rem;
	font-weight: 500;
}
.kn-pagination a.page-numbers:hover { border-color: var(--color-navy); }
.kn-pagination span.page-numbers.current { background: var(--color-navy); border-color: var(--color-navy); color: #fff; }
.kn-pagination span.page-numbers.dots { border-color: transparent; background: transparent; }
.kn-pagination .prev, .kn-pagination .next { padding: 0 16px; }

/* ---------------- Sidebar ---------------- */
.kn-sidebar { display: flex; flex-direction: column; gap: 24px; }
.kn-widget {
	padding: 24px;
	background: #fff;
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
}
.kn-widget-title { margin: 0 0 16px; font-size: 1.15rem; }
.kn-enquiry .kn-widget-title { margin-bottom: 4px; }
.kn-widget-lead { margin: 0 0 18px; color: var(--color-muted); font-size: .92rem; }

/* Enquiry form (sidebar = stacked, article page = wide) */
.kn-field label { display: block; margin-bottom: 4px; color: var(--color-navy); font-size: .85rem; font-weight: 600; }
.kn-req { color: #b3261e; }
.kn-enquiry-form textarea { resize: vertical; }
.kn-enquiry-form input:focus,
.kn-enquiry-form select:focus,
.kn-enquiry-form textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; border-color: var(--color-accent); }

.enquiry-form.kn-enquiry-form--wide {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 16px 20px;
}
.kn-enquiry-form--wide .kn-field--full,
.kn-enquiry-form--wide .btn,
.kn-enquiry-form--wide .form-notice { grid-column: 1 / -1; }

.kn-cat-list a {
	display: flex; justify-content: space-between; gap: 12px;
	padding: 9px 0;
	border-bottom: 1px solid var(--color-border);
	font-size: .94rem;
}
.kn-cat-list li:last-child a { border-bottom: 0; }
.kn-cat-list a:hover,
.kn-cat-list a.is-active { color: var(--color-accent); }
.kn-cat-list a.is-active { font-weight: 600; }
.kn-count { color: var(--color-muted); font-size: .82rem; }

.kn-tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.kn-tag {
	display: inline-block;
	padding: 5px 13px;
	border: 1px solid var(--color-border);
	border-radius: 999px;
	background: #fff;
	color: var(--color-text);
	font-size: .82rem;
	line-height: 1.4;
	transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.kn-tag:hover { background: var(--color-navy); border-color: var(--color-navy); color: #fff; }
.kn-tag.is-active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

.kn-recent-list { display: flex; flex-direction: column; gap: 16px; }
.kn-recent-item { display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: 12px; align-items: center; }
.kn-recent-thumb img,
.kn-recent-thumb .ca-img-placeholder {
	width: 68px; height: 68px; min-height: 68px;
	object-fit: cover;
	border-radius: 8px;
}
.kn-recent-title { display: block; color: var(--color-navy); font-size: .92rem; font-weight: 600; line-height: 1.35; }
.kn-recent-date { display: block; margin-top: 2px; color: var(--color-muted); font-size: .78rem; }
.kn-recent-item:hover .kn-recent-title { color: var(--color-accent); }

/* =========================================================
   Single article
   ========================================================= */

/* ---- Banner: featured image behind the title ---- */
.kn-hero {
	position: relative;
	overflow: hidden;
	padding: 64px 0 56px;
	background: linear-gradient(120deg, var(--color-navy), var(--color-navy-light));
	color: #fff;
}
.kn-hero-media { position: absolute; inset: 0; }
.kn-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.kn-hero-media::after {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(120deg, rgba(20, 32, 44, .92), rgba(20, 32, 44, .6));
}
.kn-hero .width-container { position: relative; z-index: 1; }
.kn-hero-inner { max-width: 860px; }

.kn-hero .ca-breadcrumb { margin-bottom: 22px; color: rgba(255, 255, 255, .75); font-size: .85rem; }
.kn-hero .ca-breadcrumb a { color: var(--color-accent-light); }

.kn-hero-tags { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin: 0 0 14px; font-size: .88rem; }
.kn-hero-cats a { color: var(--color-accent-light); font-weight: 600; }
.kn-hero-cats a:hover { text-decoration: underline; }

.kn-hero h1 { margin-bottom: 12px; color: #fff; }
.kn-hero-subtitle { margin: 0 0 20px; color: rgba(255, 255, 255, .85); font-size: 1.15rem; line-height: 1.5; }

.kn-byline { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 0; font-size: .92rem; color: rgba(255, 255, 255, .82); }
.kn-byline > * + * { margin-left: 14px; padding-left: 14px; border-left: 1px solid rgba(255, 255, 255, .3); }
.kn-byline .kn-author-name { color: #fff; font-weight: 600; }

/* ---- Reading column ---- */
.kn-single-inner { max-width: 820px; margin: 0 auto; padding: 44px 0 20px; }

.kn-content { font-size: 1.05rem; line-height: 1.8; }
.kn-content > *:first-child { margin-top: 0; }
.kn-content h2 { margin: 1.9em 0 .55em; font-size: clamp(1.45rem, 2.2vw, 1.8rem); scroll-margin-top: 24px; }
.kn-content h3 { margin: 1.6em 0 .5em; font-size: 1.4rem; scroll-margin-top: 24px; }
.kn-content h4 { margin: 1.4em 0 .4em; font-size: 1.15rem; }
.kn-content p { margin-bottom: 1.2em; }
.kn-content ul, .kn-content ol { margin: 0 0 1.2em; padding-left: 1.4em; }
.kn-content ul { list-style: disc; }
.kn-content ol { list-style: decimal; }
.kn-content li { margin-bottom: .55em; padding-left: .2em; }
.kn-content li::marker { color: var(--color-accent); }
.kn-content a { color: var(--color-accent); text-decoration: underline; }
.kn-content a:hover { color: var(--color-navy); }
.kn-content img { border-radius: var(--radius); margin: 1.5em 0; }
.kn-content blockquote {
	margin: 1.6em 0;
	padding: 6px 0 6px 22px;
	border-left: 4px solid var(--color-accent);
	color: var(--color-navy);
	font-size: 1.12rem;
}
.kn-content blockquote p:last-child { margin-bottom: 0; }

/* Tables (journal entries, rate tables): full width, bold header row. */
.kn-content table { display: block; overflow-x: auto; width: 100%; margin: 1.5em 0; border-collapse: collapse; font-size: .95rem; }
.kn-content th, .kn-content td { padding: 11px 16px; border: 1px solid var(--color-border); text-align: left; }
.kn-content th { background: var(--color-bg-soft); color: var(--color-navy); font-weight: 700; }

/* ---- Table of Contents (inserted after the intro) ---- */
.kn-content .kn-toc {
	margin: 0 0 2em;
	padding: 22px 26px;
	background: var(--color-bg-soft);
	border: 1px solid var(--color-border);
	border-radius: var(--radius);
}
.kn-content .kn-toc-title { margin: 0 0 10px; color: var(--color-navy); font-size: 1.2rem; font-weight: 700; line-height: 1.3; }
.kn-content .kn-toc ul { margin: 0; padding-left: 1.3em; }
.kn-content .kn-toc li { margin-bottom: .4em; }
.kn-content .kn-toc li:last-child { margin-bottom: 0; }
.kn-content .kn-toc a { color: var(--color-navy); text-decoration: none; }
.kn-content .kn-toc a:hover { color: var(--color-accent); text-decoration: underline; }

/* ---- After the article ---- */
.kn-takeaways {
	margin: 36px 0 0;
	padding: 24px 28px;
	background: var(--color-bg-soft);
	border-left: 4px solid var(--color-accent);
	border-radius: 0 var(--radius) var(--radius) 0;
}
.kn-takeaways h2 { margin: 0 0 12px; font-size: 1.2rem; }
.kn-takeaways ul { list-style: disc; padding-left: 1.3em; }
.kn-takeaways li { margin-bottom: .5em; }
.kn-takeaways li::marker { color: var(--color-accent); }
.kn-takeaways li:last-child { margin-bottom: 0; }

.kn-facts { margin: 32px 0 0; padding-top: 24px; border-top: 1px solid var(--color-border); }
.kn-facts > div { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 12px; padding: 8px 0; align-items: baseline; }
.kn-facts dt { color: var(--color-muted); font-size: .88rem; font-weight: 600; }
.kn-facts dd { margin: 0; }
.kn-facts dd > a { color: var(--color-accent); text-decoration: underline; }

.kn-cta {
	margin: 40px 0 0;
	padding: 34px 32px;
	background: var(--color-navy);
	border-radius: var(--radius);
	color: #fff;
}
.kn-cta-text { margin: 0 0 18px; font-size: 1.2rem; font-weight: 500; line-height: 1.5; }

.kn-related { margin-top: 40px; padding: 56px 0 60px; background: var(--color-bg-soft); }
.kn-related h2 { margin-bottom: 26px; }
.kn-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.kn-related-all { margin: 30px 0 0; }

/* ---- Get in Touch (closes the article page) ---- */
.kn-contact { padding: 60px 0 70px; }
.kn-contact-inner { max-width: 760px; margin: 0 auto; }
.kn-contact-inner > h2 { margin-bottom: 6px; text-align: center; }
.kn-contact-inner > .kn-widget-lead { margin-bottom: 28px; text-align: center; }

/* ---------------- Responsive ---------------- */
@media (max-width: 991px) {
	.kn-layout { grid-template-columns: 1fr; }
	.kn-related-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
	.kn-archive { padding: 30px 20px 50px; }
	.kn-card { grid-template-columns: 1fr; }
	.kn-card-media img,
	.kn-card-media .ca-img-placeholder { height: 200px; min-height: 200px; }
	.kn-card-body { padding: 20px; }
	.kn-banner-tools { width: 100%; justify-content: space-between; }
	.kn-hero { padding: 40px 0 36px; }
	.kn-related-grid { grid-template-columns: 1fr; }
	.kn-facts > div { grid-template-columns: 1fr; gap: 2px; }
	.kn-takeaways, .kn-cta, .kn-content .kn-toc { padding: 20px; }
	.enquiry-form.kn-enquiry-form--wide { grid-template-columns: 1fr; }
	.kn-contact { padding: 44px 0 50px; }
}