/* ESF Member Logos – Frontend Styles */

.esf-logos {
	width: 100%;
}

/* ── "Alle anzeigen"-Steuerung ── */
.esf-logos__controls {
	display: flex;
	justify-content: flex-end;
	margin-bottom: 12px;
}

.esf-logos__toggle-all {
	background: none;
	border: none;
	padding: 0;
	font-size: 14px;
	font-weight: 600;
	color: inherit;
	cursor: pointer;
	text-decoration: underline;
	text-underline-offset: 3px;
	transition: opacity 0.2s ease;
}
.esf-logos__toggle-all:hover {
	opacity: 0.7;
}

/* ── Accordion-Container ── */
.esf-logos__accordion {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

/* ── Accordion-Item Basis ── */
.esf-logos__item {
	overflow: hidden;
}

/* Gerade Indizes: dunkel + abgerundet */
.esf-logos__item--dark {
	background-color: #1a1a1a;
	color: #ffffff;
	border-radius: 999px;
}
.esf-logos__item--dark.esf-logos__item--open {
	border-radius: 24px;
}

/* Ungerade Indizes: hell + eckig */
.esf-logos__item--light {
	background-color: #ffffff;
	color: #1a1a1a;
	border: 2px solid #1a1a1a;
	border-radius: 0;
}

/* ── Accordion-Header (Button) ── */
.esf-logos__header {
	width: 100%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 18px 32px;
	background: none;
	border: none;
	color: inherit;
	font-size: clamp(16px, 2vw, 20px);
	font-weight: 600;
	text-align: left;
	cursor: pointer;
	gap: 16px;
	transition: opacity 0.2s ease;
}
.esf-logos__header:hover {
	opacity: 0.85;
}

/* ── Chevron ── */
.esf-logos__chevron {
	width: 24px;
	height: 24px;
	flex-shrink: 0;
	transition: transform 0.3s ease;
}
.esf-logos__header[aria-expanded="true"] .esf-logos__chevron {
	transform: rotate(180deg);
}

/* ── Body (aufgeklappter Inhalt) ── */
.esf-logos__body {
	padding: 8px 32px 28px;
}
.esf-logos__body[hidden] {
	display: none;
}

/* Inhaltsbereich im dunklen Item: weißer Hintergrund mit schwarzem Rahmen */
.esf-logos__item--dark .esf-logos__body {
	margin: 0 16px 16px;
	padding: 20px 24px 24px;
	background-color: #ffffff;
	color: #1a1a1a;
	border: 2px solid #1a1a1a;
	border-radius: 12px;
}

/* ── Logo-Grid ── */
.esf-logos__grid {
	display: grid;
	grid-template-columns: repeat(var(--esf-logos-cols, 3), 1fr);
	/* Lücke schrumpft mit mehr Spalten: 3→48px, 4→40px, 5→32px, 6→24px */
	gap: 28px clamp(16px, calc(72px - var(--esf-logos-cols, 3) * 8px), 48px);
	align-items: center;
}

/* ── Einzelnes Logo ── */
.esf-logos__logo {
	display: flex;
	align-items: center;
	justify-content: center;
}

.esf-logos__logo img {
	max-width: 100%;
	height: auto;
	/* Bildhöhe wächst mit weniger Spalten: 3→120px, 4→100px, 5→80px, 6→70px */
	max-height: clamp(70px, calc(180px - var(--esf-logos-cols, 3) * 20px), 130px);
	object-fit: contain;
	display: block;
	filter: grayscale(100%);
	transition: filter 0.3s ease;
}

.esf-logos__logo:hover img,
.esf-logos__logo:focus img {
	filter: grayscale(0%);
}

/* ── Responsive ── */
@media (max-width: 600px) {
	.esf-logos__header {
		padding: 16px 20px;
	}
	.esf-logos__body {
		padding: 8px 20px 20px;
	}
	.esf-logos__item--dark .esf-logos__body {
		margin: 0 10px 12px;
		padding: 16px 16px 20px;
	}
	.esf-logos__grid {
		grid-template-columns: repeat(2, 1fr);
		gap: 24px;
	}
	.esf-logos__item--dark {
		border-radius: 40px;
	}
	.esf-logos__item--dark.esf-logos__item--open {
		border-radius: 20px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.esf-logos__chevron,
	.esf-logos__logo img {
		transition: none;
	}
}