.ffckf-zone {
	padding: 1.65rem 0 1.1rem;
	background: #faf7f1;
}

.ffckf-reference {
	--ffckf-brand: #184f4b;
	--ffckf-accent: #b94f32;
	--ffckf-dark: #17312f;
	--ffckf-muted: #65726f;
	--ffckf-border: #e2ddd4;
	color: var(--ffckf-dark);
}

.ffckf-reference h2,
.ffckf-reference h3,
.cotton-knit-fabric-page .qbc-editor-content h2,
.cotton-knit-fabric-page .qbc-editor-content h3 {
	font-family: Georgia, Cambria, "Times New Roman", serif;
}

.ffckf-definition {
	display: grid;
	grid-template-columns: minmax(0,1.2fr) minmax(280px,.8fr);
	gap: 1.25rem;
	align-items: center;
	padding: 1.35rem;
	border: 1px solid var(--ffckf-border);
	border-radius: 16px;
	background: #fff;
	box-shadow: 0 14px 34px rgba(23,49,47,.06);
}

.ffckf-kicker {
	display: block;
	margin-bottom: .35rem;
	color: var(--ffckf-accent);
	font-size: .67rem;
	font-weight: 900;
	letter-spacing: .1em;
	text-transform: uppercase;
}

.ffckf-definition h2,
.ffckf-section-head h2,
.ffckf-behavior h2 {
	margin: 0 0 .55rem;
	color: var(--ffckf-dark);
	font-size: clamp(1.35rem,2vw,2rem);
	line-height: 1.13;
}

.ffckf-definition p,
.ffckf-section-head p,
.ffckf-behavior p {
	margin: 0;
	color: var(--ffckf-muted);
	font-size: .82rem;
	line-height: 1.7;
}

.ffckf-loop-visual {
	position: relative;
	min-height: 230px;
	padding: 2.6rem 1rem 2.75rem;
	border-radius: 13px;
	background: linear-gradient(145deg,#edf4f0,#f8efe9);
	box-shadow: inset 0 0 0 1px rgba(24,79,75,.1);
}

.ffckf-loop-visual__label {
	position: absolute;
	top: .8rem;
	left: 1rem;
	color: var(--ffckf-brand);
	font-size: .65rem;
	font-weight: 900;
	letter-spacing: .07em;
	text-transform: uppercase;
}

.ffckf-loop-visual__grid {
	display: grid;
	grid-template-columns: repeat(6,minmax(0,1fr));
	gap: .25rem .28rem;
	align-content: center;
	height: 100%;
}

.ffckf-loop-visual__grid i {
	display: block;
	height: 1.7rem;
	border: .22rem solid var(--ffckf-brand);
	border-top-color: transparent;
	border-radius: 0 0 50% 50%;
	transform: rotate(180deg);
	opacity: .9;
}

.ffckf-loop-visual__grid i:nth-child(3n) {
	border-color: var(--ffckf-accent);
	border-top-color: transparent;
	opacity: .58;
}

.ffckf-loop-visual__axis {
	position: absolute;
	left: 1rem;
	right: 1rem;
	bottom: .75rem;
	display: flex;
	align-items: center;
	gap: .45rem;
	color: var(--ffckf-muted);
}

.ffckf-loop-visual__axis span {
	color: var(--ffckf-accent);
	font-size: 1.25rem;
	font-weight: 900;
}

.ffckf-loop-visual__axis small {
	font-size: .59rem;
	font-weight: 800;
	text-transform: uppercase;
}

.ffckf-facts {
	display: grid;
	grid-template-columns: repeat(4,minmax(0,1fr));
	gap: .7rem;
	margin: .8rem 0 1.8rem;
}

.ffckf-facts > div {
	padding: .85rem .95rem;
	border: 1px solid var(--ffckf-border);
	border-radius: 11px;
	background: #fff;
}

.ffckf-facts strong,
.ffckf-facts span {
	display: block;
}

.ffckf-facts strong {
	color: var(--ffckf-brand);
	font-size: .8rem;
}

.ffckf-facts span {
	margin-top: .18rem;
	color: var(--ffckf-muted);
	font-size: .64rem;
	line-height: 1.45;
}

.ffckf-section-head {
	max-width: 780px;
	margin: 0 auto 1rem;
	text-align: center;
}

.ffckf-section-head--left {
	max-width: none;
	margin-left: 0;
	text-align: left;
}

.ffckf-structures {
	display: grid;
	grid-template-columns: repeat(4,minmax(0,1fr));
	gap: .8rem;
}

.ffckf-structure-card {
	padding: .85rem;
	border: 1px solid var(--ffckf-border);
	border-radius: 13px;
	background: #fff;
}

.ffckf-structure-card__visual {
	position: relative;
	display: grid;
	grid-template-columns: repeat(3,1fr);
	gap: .28rem;
	align-items: center;
	min-height: 74px;
	margin-bottom: .65rem;
	padding: .55rem;
	border-radius: 9px;
	background: #eef5f2;
}

.ffckf-structure-card__visual b {
	position: absolute;
	top: .4rem;
	left: .45rem;
	display: grid;
	place-items: center;
	width: 1.35rem;
	height: 1.35rem;
	border-radius: 50%;
	background: var(--ffckf-accent);
	color: #fff;
	font-size: .58rem;
}

.ffckf-structure-card__visual span {
	display: block;
	height: 2.4rem;
	border: 2px solid var(--ffckf-brand);
	border-top: 0;
	border-radius: 0 0 50% 50%;
	opacity: .78;
}

.ffckf-structure-card > small {
	display: inline-block;
	margin-bottom: .28rem;
	color: var(--ffckf-accent);
	font-size: .57rem;
	font-weight: 900;
	letter-spacing: .04em;
	text-transform: uppercase;
}

.ffckf-structure-card h3 {
	margin: 0 0 .35rem;
	color: var(--ffckf-brand);
	font-size: 1rem;
}

.ffckf-structure-card p,
.ffckf-use-grid p {
	margin: 0;
	color: var(--ffckf-muted);
	font-size: .66rem;
	line-height: 1.55;
}

.ffckf-behavior {
	display: grid;
	grid-template-columns: minmax(0,1.05fr) minmax(300px,.95fr);
	gap: 1rem;
	align-items: center;
	margin-top: 1.3rem;
	padding: 1.15rem;
	border: 1px solid var(--ffckf-border);
	border-radius: 14px;
	background: #f5f9f7;
}

.ffckf-behavior__cards {
	display: grid;
	grid-template-columns: repeat(3,minmax(0,1fr));
	gap: .55rem;
}

.ffckf-behavior__cards > div {
	min-height: 128px;
	padding: .75rem;
	border-radius: 10px;
	background: #fff;
	text-align: center;
}

.ffckf-behavior__cards span,
.ffckf-behavior__cards strong,
.ffckf-behavior__cards small {
	display: block;
}

.ffckf-behavior__cards span {
	color: var(--ffckf-accent);
	font-size: 1.55rem;
	font-weight: 900;
}

.ffckf-behavior__cards strong {
	margin-top: .2rem;
	color: var(--ffckf-brand);
	font-size: .69rem;
}

.ffckf-behavior__cards small {
	margin-top: .25rem;
	color: var(--ffckf-muted);
	font-size: .58rem;
	line-height: 1.35;
}

.ffckf-uses,
.ffckf-compare {
	margin-top: 1.35rem;
}

.ffckf-use-grid {
	display: grid;
	grid-template-columns: repeat(3,minmax(0,1fr));
	gap: .7rem;
}

.ffckf-use-grid article {
	padding: .85rem;
	border: 1px solid var(--ffckf-border);
	border-radius: 11px;
	background: #fff;
}

.ffckf-use-grid h3 {
	margin: 0 0 .25rem;
	color: var(--ffckf-brand);
	font-size: .92rem;
}

.ffckf-use-grid strong {
	display: block;
	margin-bottom: .25rem;
	color: var(--ffckf-accent);
	font-size: .6rem;
	text-transform: uppercase;
}

.ffckf-compare__grid {
	display: grid;
	grid-template-columns: repeat(2,minmax(0,1fr));
	gap: .8rem;
}

.ffckf-compare__grid > div {
	display: grid;
	grid-template-columns: minmax(100px,.8fr) repeat(3,minmax(0,1fr));
	align-items: center;
	border: 1px solid var(--ffckf-border);
	border-radius: 11px;
	background: #fff;
}

.ffckf-compare__grid strong,
.ffckf-compare__grid span {
	padding: .72rem;
	font-size: .65rem;
	line-height: 1.4;
}

.ffckf-compare__grid strong {
	color: var(--ffckf-brand);
}

.ffckf-compare__grid span {
	border-left: 1px solid #ece8e1;
	color: var(--ffckf-muted);
}

.ffckf-related {
	margin-top: 1.35rem;
	padding: .9rem 1rem;
	border-radius: 11px;
	background: #17312f;
	color: #fff;
}

.ffckf-related > strong {
	display: block;
	margin-bottom: .35rem;
	font-size: .68rem;
	letter-spacing: .05em;
	text-transform: uppercase;
}

.ffckf-related > div {
	display: flex;
	flex-wrap: wrap;
	gap: .35rem .6rem;
	align-items: center;
}

.ffckf-related a {
	color: #fff;
	font-size: .69rem;
	font-weight: 700;
	text-decoration: underline;
	text-underline-offset: 2px;
}

.ffckf-related span {
	opacity: .45;
}

@media (max-width: 900px) {
	.ffckf-definition,
	.ffckf-behavior {
		grid-template-columns: 1fr;
	}

	.ffckf-facts,
	.ffckf-structures {
		grid-template-columns: repeat(2,minmax(0,1fr));
	}

	.ffckf-use-grid {
		grid-template-columns: repeat(2,minmax(0,1fr));
	}

	.ffckf-compare__grid {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 620px) {
	.ffckf-zone {
		padding-top: 1rem;
	}

	.ffckf-definition {
		padding: 1rem;
	}

	.ffckf-facts,
	.ffckf-structures,
	.ffckf-use-grid,
	.ffckf-behavior__cards {
		grid-template-columns: 1fr;
	}

	.ffckf-loop-visual {
		min-height: 210px;
	}

	.ffckf-compare__grid > div {
		display: block;
		padding: .7rem;
	}

	.ffckf-compare__grid strong,
	.ffckf-compare__grid span {
		display: block;
		padding: .45rem 0;
	}

	.ffckf-compare__grid span {
		border-top: 1px solid #ece8e1;
		border-left: 0;
	}
}