/* =============================================================================
 * LITSLINK BLOCKS — Engagement models · 3 col + diagram (acf/ll-engagement-3col)
 * Self-contained: block-scoped palette + literal font fallback. No global .block-head.
 * ========================================================================== */
.block-ll-engagement-3col {
	--eng3-ink: #101828;
	--eng3-body: #5b6472;
	--eng3-eyebrow: #1690d3;
	--eng3-accent: #1690d3;
	--eng3-label: #8a94a6;
	--eng3-section-bg: #f9fafb;
	--eng3-card-bg: #ffffff;
	--eng3-stroke: #e7ebf0;
	--eng3-node-border: #e2e8f0;
	--eng3-node-ink: #0f172a;
	--eng3-blue: #2364d5;
	--eng3-green: #19a47c;
	--eng3-navy: #0a1d44;
	--eng3-wire: #c2ccd9;
	font-family: var(--ll-font, 'Montserrat', 'Montserrat-fallback', Arial, sans-serif);
	background: var(--eng3-section-bg);
	padding: 80px 0;
	box-sizing: border-box;
}
.block-ll-engagement-3col *,
.block-ll-engagement-3col *::before,
.block-ll-engagement-3col *::after { box-sizing: border-box; }

.block-ll-engagement-3col__inner {
	max-width: 1240px;
	margin: 0 auto;
	padding: 0 20px;
}

/* ------------------------------------------------------------------ head -- */
.block-ll-engagement-3col__head { text-align: center; margin: 0 auto 48px; max-width: 860px; }
.block-ll-engagement-3col__eyebrow {
	margin: 0 0 12px;
	font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
	color: var(--eng3-eyebrow);
}
.block-ll-engagement-3col__title {
	margin: 0; font-size: 40px; line-height: 1.2; font-weight: 700; color: var(--eng3-ink);
}
.block-ll-engagement-3col__subtitle {
	margin: 16px auto 0; max-width: 760px; font-size: 17px; line-height: 1.6; color: var(--eng3-body);
}

/* ---------------------------------------------------------------- models -- */
.block-ll-engagement-3col__models {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 24px;
}
.block-ll-engagement-3col__model {
	background: var(--eng3-card-bg);
	border: 1px solid var(--eng3-stroke);
	border-radius: 16px;
	padding: 28px 30px;
	box-shadow: 0 1px 3px rgba(16, 24, 40, .04);
}
.block-ll-engagement-3col__model-name {
	margin: 0 0 8px;
	padding-bottom: 16px;
	border-bottom: 1px solid var(--eng3-stroke);
	font-size: 22px; font-weight: 700; line-height: 1.3; color: var(--eng3-accent);
}
.block-ll-engagement-3col__spec {
	padding: 16px 0;
	border-top: 1px solid var(--eng3-stroke);
}
.block-ll-engagement-3col__model-name + .block-ll-engagement-3col__spec { border-top: 0; }
.block-ll-engagement-3col__spec-label {
	display: block;
	margin-bottom: 4px;
	font-size: 11px; font-weight: 700; line-height: 1.4; letter-spacing: .06em;
	text-transform: uppercase;
	color: var(--eng3-label);
}
.block-ll-engagement-3col__spec-val {
	font-size: 15px; line-height: 1.55; color: var(--eng3-ink);
}

/* ------------------------------------------------------------------ note -- */
.block-ll-engagement-3col__note {
	margin-top: 32px;
	padding: 30px 40px;
	background: var(--eng3-card-bg);
	border: 1px solid var(--eng3-stroke);
	border-radius: 16px;
	text-align: center;
}
.block-ll-engagement-3col__note-text {
	margin: 0;
	font-size: 18px; line-height: 1.55; color: var(--eng3-ink);
}

/* --------------------------------------------------------------- diagram -- */
/* Uploaded image (was a hardcoded CSS/SVG decision tree). Scales to fit the
   column with preserved aspect — same responsive pattern as ll-process. */
.block-ll-engagement-3col__diagram {
	margin: 56px auto 0;
	max-width: 1040px;
	text-align: center;
}
.block-ll-engagement-3col__diagram-img {
	max-width: 100%;
	height: auto;
	border-radius: 16px;
	display: inline-block;
}
.block-ll-engagement-3col__diagram-ph {
	display: flex; align-items: center; justify-content: center;
	width: 100%; min-height: 320px; border-radius: 16px;
	border: 1.5px dashed #cbd5e1; color: #94a3b8;
	font-size: 15px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
}

/* =========================================================== responsive -- */
@media (max-width: 1024px) {
	.block-ll-engagement-3col__models { grid-template-columns: 1fr; }
}
@media (max-width: 782px) {
	.block-ll-engagement-3col { padding: 56px 0; }
	.block-ll-engagement-3col__title { font-size: 30px; }
	.block-ll-engagement-3col__model { padding: 24px; }
	.block-ll-engagement-3col__note { padding: 24px; }
	.block-ll-engagement-3col__note-text { font-size: 16px; }
}