/* =========================================================
   Luxacent — "Knowledge Center" page (page-scoped)
   Premium editorial look: deep-navy Playfair serif headings,
   warm gold accents, letter-spaced eyebrows, soft light bands.
   Matches the client's reference art direction. Reuses the
   theme's c123- primitives; adds c123-kc-* modules.
   ========================================================= */

.c123-kc {
	--kc-navy: #12233f;
	--kc-navy-soft: #26456f;
	--kc-ink: #3f4d63;
	--kc-gold: #b8925a;
	--kc-gold-deep: #9c7a45;
	--kc-gold-soft: #e7d7bd;
	--kc-cream: #faf6ef;
	--kc-cream-line: #ece2d1;
	--kc-mist: #f3f6fa;
	--kc-line: #e7ecf3;
	--kc-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
	--kc-read: 760px;
	color: var(--kc-ink);
}

/* Anchor offset so the sticky header never overlaps a jumped-to section. */
.c123-kc-body [id],
.c123-kc-article h2 { scroll-margin-top: 104px; }

/* Eyebrow — navy, letter-spaced (overrides the global primary-blue eyebrow) */
.c123-kc .c123-eyebrow {
	color: var(--kc-navy);
	font-family: var(--c123-font-head);
	font-weight: 700;
	font-size: 0.78rem;
	letter-spacing: 0.22em;
	text-transform: uppercase;
}

/* All h2 headings in serif navy, with a short gold accent rule */
.c123-kc .c123-h2 {
	font-family: var(--kc-serif);
	font-weight: 600;
	letter-spacing: 0;
	color: var(--kc-navy);
	line-height: 1.15;
}

/* Scoped buttons — navy / gold premium palette */
.c123-kc .c123-btn-primary { background: var(--kc-navy); border-color: var(--kc-navy); box-shadow: none; }
.c123-kc .c123-btn-primary:hover { background: var(--kc-navy-soft); border-color: var(--kc-navy-soft); transform: translateY(-2px); }
.c123-kc .c123-btn-outline { border: 1.5px solid var(--kc-navy); color: var(--kc-navy); background: transparent; }
.c123-kc .c123-btn-outline:hover { background: var(--kc-navy); color: #fff; }
.c123-kc .c123-btn-gold { background: var(--kc-gold); color: #fff; border: 1px solid var(--kc-gold); }
.c123-kc .c123-btn-gold:hover { background: var(--kc-gold-deep); border-color: var(--kc-gold-deep); transform: translateY(-2px); }

/* Shared centered heading block */
.c123-kc-head { max-width: 720px; margin: 0 auto 2.75rem; text-align: center; }
.c123-kc-head .c123-h2 { position: relative; display: inline-block; padding-bottom: 0.7rem; }
.c123-kc-head .c123-h2::after {
	content: "";
	position: absolute;
	left: 50%;
	bottom: 0;
	width: 54px;
	height: 2px;
	transform: translateX(-50%);
	background: var(--kc-gold);
}

/* ---------- Hero — product/lab image as background, real text overlaid left ---------- */
.c123-kc-hero {
	position: relative;
	display: flex;
	align-items: center;
	min-height: clamp(430px, 44vw, 620px);
	background-image: url("../images/knowledge-center-hero.jpg?v=2");
	background-size: cover;
	background-position: right center;
	background-repeat: no-repeat;
	border-bottom: 1px solid var(--kc-cream-line);
	overflow: hidden;
}
/* Left scrim: fully opaque over the image's baked-in text zone, fading to
   reveal the products on the right. Colour matches the photo's ambient light. */
.c123-kc-hero::before {
	content: "";
	position: absolute;
	inset: 0;
	background: linear-gradient(
		90deg,
		rgb(240, 243, 248) 0%,
		rgb(240, 243, 248) 32%,
		rgba(240, 243, 248, 0.8) 42%,
		rgba(240, 243, 248, 0.3) 56%,
		rgba(240, 243, 248, 0) 70%
	);
	pointer-events: none;
}
.c123-kc-hero-inner { position: relative; z-index: 1; }
.c123-kc-hero-copy { max-width: 44%; }
/* Illustration disclaimer over the product image */
.c123-kc-hero-note {
	position: absolute;
	right: clamp(12px, 3vw, 30px);
	bottom: 12px;
	z-index: 2;
	margin: 0;
	padding: 4px 11px;
	font-size: 0.72rem;
	font-weight: 600;
	letter-spacing: 0.01em;
	color: var(--kc-navy);
	background: rgba(255, 255, 255, 0.72);
	border: 1px solid rgba(255, 255, 255, 0.9);
	border-radius: 999px;
	backdrop-filter: blur(2px);
}
.c123-kc-hero .c123-eyebrow { display: block; margin-bottom: 0.85rem; }
.c123-kc-hero-title {
	font-family: var(--kc-serif);
	font-weight: 600;
	color: var(--kc-navy);
	line-height: 1.06;
	font-size: clamp(2.2rem, 4.6vw, 3.6rem);
	margin: 0 0 1.1rem;
	overflow-wrap: break-word;
}
.c123-kc-hero-lead {
	position: relative;
	font-size: clamp(1rem, 1.5vw, 1.18rem);
	line-height: 1.6;
	color: var(--kc-ink);
	max-width: 360px;
	margin: 0;
	padding-bottom: 1.15rem;
}
.c123-kc-hero-lead::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: 0;
	width: 128px;
	height: 2px;
	background: var(--kc-gold);
}

/* Intro copy + actions band (below the hero image) */
.c123-kc-intro { background: #fff; }
.c123-kc-intro-inner { text-align: center; max-width: 780px; }
.c123-kc-hero-text {
	font-size: 1.05rem;
	line-height: 1.75;
	color: var(--kc-ink);
	margin: 0 auto 1.1rem;
	max-width: 720px;
}
.c123-kc-hero-text a {
	color: var(--kc-navy-soft);
	font-weight: 600;
	text-decoration: underline;
	text-decoration-color: var(--kc-gold-soft);
	text-underline-offset: 3px;
	text-decoration-thickness: 1.5px;
	transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
.c123-kc-hero-text a:hover { color: var(--kc-gold-deep); text-decoration-color: var(--kc-gold); }
.c123-kc-hero-actions {
	display: flex;
	gap: 0.9rem;
	justify-content: center;
	flex-wrap: wrap;
	margin-top: 1.7rem;
}

/* ---------- Article body ---------- */
.c123-kc-body { padding-top: clamp(2.5rem, 5vw, 4rem); background: #fff; }
.c123-kc-article { max-width: var(--kc-read); margin: 0 auto; color: var(--kc-ink); }
.c123-kc-article .c123-h2 {
	font-size: clamp(1.5rem, 3vw, 2.05rem);
	margin: 2.6rem 0 1.1rem;
	padding-bottom: 0.65rem;
	scroll-margin-top: 104px;
}
.c123-kc-article .c123-h2::after {
	content: "";
	display: block;
	width: 46px;
	height: 2px;
	margin-top: 0.65rem;
	background: var(--kc-gold);
}
.c123-kc-article > .c123-h2:first-child { margin-top: 0; }
.c123-kc-article p {
	font-size: 1.06rem;
	line-height: 1.8;
	margin: 0 0 1.15rem;
}
.c123-kc-article a:not(.c123-btn) {
	color: var(--kc-navy-soft);
	font-weight: 600;
	text-decoration: underline;
	text-decoration-color: var(--kc-gold-soft);
	text-underline-offset: 3px;
	text-decoration-thickness: 1.5px;
	transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
.c123-kc-article a:not(.c123-btn):hover {
	color: var(--kc-gold-deep);
	text-decoration-color: var(--kc-gold);
}
.c123-kc-article .c123-btn { text-decoration: none; }
.c123-kc-article .c123-btn-primary { color: #fff; }

/* Numbered routine steps — navy discs */
.c123-kc-steps {
	list-style: none;
	counter-reset: kc-step;
	display: grid;
	gap: 0.85rem;
	margin: 0.6rem 0 1.5rem;
	padding: 0;
}
.c123-kc-steps li {
	position: relative;
	padding: 1.05rem 1.2rem 1.05rem 3.5rem;
	font-size: 1.02rem;
	line-height: 1.65;
	background: var(--kc-cream);
	border: 1px solid var(--kc-cream-line);
	border-radius: 14px;
}
.c123-kc-steps li::before {
	counter-increment: kc-step;
	content: counter(kc-step);
	position: absolute;
	left: 1rem;
	top: 0.95rem;
	display: grid;
	place-items: center;
	width: 1.75rem;
	height: 1.75rem;
	font-family: var(--kc-serif);
	font-size: 0.9rem;
	font-weight: 700;
	color: #fff;
	background: var(--kc-navy);
	border-radius: 50%;
}
.c123-kc-steps li strong { color: var(--kc-navy); font-weight: 700; }

/* Plain bullet list — gold markers */
.c123-kc-list { margin: 0.4rem 0 1.5rem; padding-left: 1.2rem; display: grid; gap: 0.55rem; }
.c123-kc-list li { font-size: 1.02rem; line-height: 1.6; }
.c123-kc-list li::marker { color: var(--kc-gold); }

/* Check-icon checklist — gold checks */
.c123-kc-checklist { list-style: none; margin: 0.5rem 0 1.5rem; padding: 0; display: grid; gap: 0.7rem; }
.c123-kc-checklist li {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
	font-size: 1.02rem;
	line-height: 1.6;
	color: var(--kc-ink);
}
.c123-kc-checklist li .c123-icon { flex: none; margin-top: 3px; color: var(--kc-gold); }

/* Inline CTA row inside the article flow */
.c123-kc-inline-cta {
	display: flex;
	gap: 0.9rem;
	flex-wrap: wrap;
	margin: 1.75rem 0 0.5rem;
	padding: 1.5rem;
	background: var(--kc-cream);
	border: 1px solid var(--kc-cream-line);
	border-left: 3px solid var(--kc-gold);
	border-radius: 14px;
}

/* ---------- FAQ ---------- */
.c123-kc-faq { background: var(--kc-cream); }
.c123-kc-faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 0.8rem; }
.c123-kc-faq-item {
	border: 1px solid var(--kc-cream-line);
	border-radius: 14px;
	background: #fff;
	box-shadow: 0 6px 22px rgba(18, 35, 63, 0.05);
	overflow: hidden;
	transition: border-color 0.2s ease;
}
.c123-kc-faq-item[open] { border-color: var(--kc-gold-soft); }
.c123-kc-faq-item summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding: 1.15rem 1.4rem;
	font-family: var(--kc-serif);
	font-weight: 600;
	font-size: 1.1rem;
	color: var(--kc-navy);
	cursor: pointer;
	list-style: none;
}
.c123-kc-faq-item summary::-webkit-details-marker { display: none; }
.c123-kc-faq-item summary .c123-icon { flex: none; color: var(--kc-gold); transition: transform 0.25s ease; }
.c123-kc-faq-item[open] summary .c123-icon { transform: rotate(90deg); }
.c123-kc-faq-item p { margin: 0; padding: 0 1.4rem 1.3rem; color: var(--kc-ink); line-height: 1.75; }
.c123-kc-faq-more { text-align: center; margin-top: 2.25rem; }

/* ---------- Explore by Topic ---------- */
.c123-kc-topics { background: #fff; }
.c123-kc-topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.c123-kc-topic-card {
	display: flex;
	flex-direction: column;
	gap: 0.8rem;
	padding: 1.9rem 1.7rem;
	background: #fff;
	border: 1px solid var(--kc-line);
	border-radius: 18px;
	box-shadow: 0 8px 30px rgba(18, 35, 63, 0.05);
	transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.c123-kc-topic-card:hover {
	transform: translateY(-5px);
	box-shadow: 0 16px 40px rgba(18, 35, 63, 0.1);
	border-color: var(--kc-gold-soft);
}
.c123-kc-topic-icon {
	display: grid;
	place-items: center;
	width: 54px;
	height: 54px;
	border-radius: 50%;
	color: var(--kc-gold-deep);
	background: transparent;
	border: 1.5px solid var(--kc-gold-soft);
}
.c123-kc-topic-title { font-family: var(--kc-serif); font-weight: 600; font-size: 1.25rem; margin: 0.35rem 0 0; color: var(--kc-navy); }
.c123-kc-topic-body { font-size: 0.97rem; line-height: 1.7; color: var(--kc-ink); margin: 0; }
.c123-kc-topic-cta {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	margin-top: auto;
	padding-top: 0.5rem;
	font-family: var(--c123-font-head);
	font-weight: 700;
	font-size: 0.8rem;
	letter-spacing: 0.06em;
	color: var(--kc-gold-deep);
}
.c123-kc-topic-cta .c123-icon { transition: transform 0.2s ease; }
.c123-kc-topic-card:hover .c123-kc-topic-cta { color: var(--kc-navy); }
.c123-kc-topic-card:hover .c123-kc-topic-cta .c123-icon { transform: translateX(3px); }

/* ---------- Final conversion — deep navy panel ---------- */
.c123-kc-final { background: #fff; }
.c123-kc-final-panel {
	position: relative;
	overflow: hidden;
	text-align: center;
	padding: clamp(2.75rem, 6vw, 4.5rem);
	border-radius: 22px;
	background: radial-gradient(120% 140% at 50% 0%, var(--kc-navy-soft) 0%, var(--kc-navy) 60%);
	color: #fff;
	box-shadow: 0 20px 60px rgba(18, 35, 63, 0.25);
}
.c123-kc-final-panel::before {
	content: "";
	position: absolute;
	top: 0; left: 50%;
	width: 120px; height: 3px;
	transform: translateX(-50%);
	background: var(--kc-gold);
}
.c123-kc-final-panel h2 {
	color: #fff;
	font-family: var(--kc-serif);
	font-weight: 600;
	font-size: clamp(1.7rem, 3.6vw, 2.5rem);
	margin: 0 auto 1rem;
}
.c123-kc-final-panel > p {
	color: rgba(255, 255, 255, 0.86);
	font-size: 1.05rem;
	line-height: 1.75;
	max-width: 620px;
	margin: 0 auto 1.7rem;
}
.c123-kc .c123-kc-final-panel .c123-btn-light { background: var(--kc-gold); color: #fff; border-color: var(--kc-gold); }
.c123-kc .c123-kc-final-panel .c123-btn-light:hover { background: #fff; color: var(--kc-navy); }
.c123-kc-final-more {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	align-items: center;
	gap: 0.5rem 1.4rem;
	margin: 2rem auto 0;
	font-size: 0.8rem;
}
.c123-kc-final-more span {
	width: 100%;
	font-family: var(--kc-serif);
	font-style: italic;
	font-size: 1rem;
	color: rgba(255, 255, 255, 0.82);
	margin-bottom: 0.35rem;
}
.c123-kc-final-more a {
	font-family: var(--c123-font-head);
	font-weight: 700;
	letter-spacing: 0.05em;
	color: #fff;
	text-decoration: underline;
	text-underline-offset: 4px;
	text-decoration-color: rgba(184, 146, 90, 0.8);
}
.c123-kc-final-more a:hover { text-decoration-color: #fff; }

/* ---------- Support ---------- */
.c123-kc-support { background: var(--kc-cream); }
.c123-kc-support-panel {
	text-align: center;
	max-width: 640px;
	margin: 0 auto;
	padding: clamp(2.25rem, 5vw, 3.25rem);
	background: #fff;
	border: 1px solid var(--kc-cream-line);
	border-radius: 20px;
	box-shadow: 0 10px 34px rgba(18, 35, 63, 0.06);
}
.c123-kc-support-icon {
	display: inline-grid;
	place-items: center;
	width: 64px;
	height: 64px;
	margin-bottom: 0.85rem;
	border-radius: 50%;
	color: var(--kc-gold-deep);
	background: transparent;
	border: 1.5px solid var(--kc-gold-soft);
}
.c123-kc-support-panel p { color: var(--kc-ink); font-size: 1.05rem; line-height: 1.75; margin: 0.5rem auto 1.7rem; max-width: 500px; }

/* ---------- Disclaimer ---------- */
.c123-kc-disclaimer { padding: 0 0 clamp(3rem, 6vw, 5rem); background: var(--kc-cream); }
.c123-kc-disclaimer-inner {
	max-width: 860px;
	margin: 0 auto;
	padding: 1.6rem 1.7rem;
	background: #fff;
	border: 1px solid var(--kc-cream-line);
	border-left: 4px solid var(--kc-gold);
	border-radius: 14px;
	box-shadow: 0 6px 22px rgba(18, 35, 63, 0.05);
}
.c123-kc-disclaimer-title {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	font-family: var(--kc-serif);
	font-weight: 600;
	font-size: 1.15rem;
	margin: 0 0 0.55rem;
	color: var(--kc-navy);
}
.c123-kc-disclaimer-title .c123-icon { flex: none; color: var(--kc-gold); }
.c123-kc-disclaimer p { margin: 0; font-size: 0.95rem; line-height: 1.75; color: var(--kc-ink); }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
	.c123-kc-topic-grid { grid-template-columns: repeat(2, 1fr); }
	.c123-kc-hero-copy { max-width: 58%; }
}
@media (max-width: 780px) {
	.c123-kc-hero { min-height: 380px; align-items: flex-start; padding-top: 2.75rem; }
	.c123-kc-hero-copy { max-width: 100%; }
	.c123-kc-hero-title { font-size: clamp(1.7rem, 6.6vw, 2.3rem); margin-bottom: 0.9rem; }
	.c123-kc-hero-lead { max-width: 100%; }
	.c123-kc-hero::before {
		background: linear-gradient(
			90deg,
			rgba(240, 243, 248, 0.96) 0%,
			rgba(240, 243, 248, 0.9) 60%,
			rgba(240, 243, 248, 0.72) 100%
		);
	}
}
@media (max-width: 620px) {
	.c123-kc-topic-grid { grid-template-columns: 1fr; }
	.c123-kc-hero-actions .c123-btn,
	.c123-kc-inline-cta .c123-btn { width: 100%; justify-content: center; }
}