/* ==========================================================================
   envitron 2026 - footer.css
   Site-Footer (4-Spalten-Grid + Legal-Strip).

   Erwartet Tokens aus main.css (:root). Verhalten:
   - dunkler Fond (--ink-900) mit feiner Brand-Akzentlinie oben
   - 4 Spalten Desktop -> 2 Spalten Tablet -> 1 Spalte Mobile
   - dezente Icons fuer Telefon/Mail im Kontakt-Block
   - eigener Legal-Strip mit Copyright + Rechtlich-Links
   ========================================================================== */

/* ------------------------------------------------------------- 1. Shell */
.site-footer {
	background: var(--ink-900);
	color: var(--ink-100);
	position: relative;
	overflow: hidden;
}
/* Feiner Brand-Akzent am oberen Footer-Rand. */
.site-footer::before {
	content: "";
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	height: 2px;
	background: linear-gradient(90deg, var(--brand-500), var(--brand-700) 50%, transparent);
	opacity: 0.55;
	pointer-events: none;
}
.site-footer a {
	color: var(--white);
	text-decoration: none;
	transition: color var(--transition-fast);
}
.site-footer a:hover,
.site-footer a:focus-visible {
	color: var(--brand-300);
	text-decoration: underline;
	text-underline-offset: 0.2em;
}
.site-footer a:focus-visible {
	outline: 2px solid var(--brand-300);
	outline-offset: 3px;
	border-radius: 2px;
}

/* ------------------------------------------------------------- 2. Grid */
.site-footer__inner {
	max-width: var(--wide-width);
	margin-inline: auto;
	padding: clamp(2.5rem, 5vw, 4rem) var(--gutter) clamp(2rem, 4vw, 3rem);
	display: grid;
	grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
	gap: clamp(1.5rem, 3vw, 3rem);
}

@media (max-width: 1080px) {
	.site-footer__inner {
		grid-template-columns: 1fr 1fr;
		gap: var(--space-6);
	}
	/* Brand-Spalte spannt ueber beide Spalten Tablet, damit Logo + Claim genug Raum bekommen. */
	.site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
	.site-footer__inner {
		grid-template-columns: 1fr;
		gap: var(--space-5);
	}
	.site-footer__brand { grid-column: auto; }
}

/* ------------------------------------------------------------- 3. Brand-Spalte */
.site-footer__brand {
	display: flex;
	flex-direction: column;
	gap: var(--space-4);
}
.site-footer__brand .custom-logo-link {
	display: inline-flex;
	align-items: center;
	width: max-content;
}
.site-footer__brand .custom-logo {
	max-height: 56px;
	width: auto;
	filter: brightness(0) invert(1);
	opacity: 0.92;
	transition: opacity var(--transition-fast);
}
.site-footer__brand .custom-logo-link:hover .custom-logo {
	opacity: 1;
}

.site-footer__claim {
	margin: 0;
	color: var(--ink-200);
	font-size: var(--fs-sm);
	line-height: 1.6;
	max-width: 36ch;
}

/* ------------------------------------------------------------- 4. Spalten-Headings */
.site-footer__heading {
	display: block;
	font-size: 0.72rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	color: var(--white);
	margin: 0 0 var(--space-4);
	padding-bottom: var(--space-2);
	border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

/* ------------------------------------------------------------- 5. Link-Spalten */
.site-footer__col {
	display: flex;
	flex-direction: column;
}
.site-footer__list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
}
.site-footer__list a {
	display: inline-flex;
	align-items: center;
	gap: var(--space-2);
	color: var(--ink-200);
	font-size: var(--fs-sm);
	padding-block: 0.15rem;
	line-height: 1.45;
}
.site-footer__list a::before {
	content: "›";
	color: var(--brand-500);
	font-weight: 700;
	opacity: 0;
	transform: translateX(-4px);
	transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.site-footer__list a:hover::before,
.site-footer__list a:focus-visible::before {
	opacity: 1;
	transform: translateX(0);
}
.site-footer__list a:hover,
.site-footer__list a:focus-visible {
	color: var(--white);
	text-decoration: none;
}

/* ------------------------------------------------------------- 6. Kontakt-Spalte */
.site-footer__contact {
	font-style: normal;
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
}
.site-footer__contact-block {
	color: var(--ink-200);
	font-size: var(--fs-sm);
	line-height: 1.6;
	margin: 0;
}
.site-footer__contact-block strong {
	color: var(--white);
	font-weight: 600;
}
.site-footer__contact-list {
	list-style: none;
	padding: 0;
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: var(--space-2);
}
.site-footer__contact-list a {
	display: inline-flex;
	align-items: center;
	gap: 0.6rem;
	color: var(--ink-100);
	font-size: var(--fs-sm);
	padding-block: 0.15rem;
}
.site-footer__contact-list a:hover,
.site-footer__contact-list a:focus-visible {
	color: var(--brand-300);
	text-decoration: none;
}
.site-footer__contact-list .icon {
	width: 16px;
	height: 16px;
	flex: 0 0 auto;
	color: var(--brand-500);
}
.site-footer__contact-list a:hover .icon,
.site-footer__contact-list a:focus-visible .icon {
	color: var(--brand-300);
}

/* ------------------------------------------------------------- 7. Legal-Strip
 * Schmaler Streifen am unteren Footer-Rand: Copyright links, Legal-Links rechts.
 * Beides ein einziger Flex-Container mit identischer Schriftgroesse,
 * line-height und Padding - damit beide Seiten EXAKT auf einer Baseline sitzen.
 */
.site-footer__legal {
	border-top: 1px solid rgba(255, 255, 255, 0.08);
	background: rgba(0, 0, 0, 0.18);
}
.site-footer__legal-inner {
	max-width: var(--wide-width);
	margin-inline: auto;
	padding: var(--space-3) var(--gutter);
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-4);
	justify-content: space-between;
	align-items: center;
	min-height: 56px;
	font-size: var(--fs-xs);
	line-height: 1.5;
	color: var(--ink-300);
}
.site-footer__copyright {
	margin: 0;
	font-size: inherit;
	line-height: inherit;
	color: inherit;
}
.site-footer__legal-list {
	list-style: none;
	padding: 0;
	margin: 0 0 0 auto; /* rechtsbuendig, robust gegen flex-Reihenfolge */
	display: flex;
	flex-wrap: wrap;
	gap: var(--space-5);
	align-items: center;
	justify-content: flex-end;
	font-size: inherit;
	line-height: inherit;
}
.site-footer__legal-list li {
	margin: 0;
	display: inline-flex;
	align-items: center;
}
.site-footer__legal-list a {
	color: var(--ink-300);
	font-size: inherit;
	line-height: inherit;
	padding-block: 0;
}
.site-footer__legal-list a:hover,
.site-footer__legal-list a:focus-visible {
	color: var(--white);
	text-decoration: underline;
	text-underline-offset: 0.25em;
}

@media (max-width: 640px) {
	.site-footer__legal-inner {
		flex-direction: column;
		align-items: flex-start;
		gap: var(--space-3);
		min-height: 0;
	}
}