/* ===========================================================================
   cl-physio — chrome.css
   Header, primary navigation (incl. Administration dropdown), buttons,
   footer and back-to-top. Loaded on every page after base.css.
   Mobile-first; the desktop nav switches on at 880px.
   =========================================================================== */

/* ---------------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------------- */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 0.5rem;
	padding: 0.72rem 1.5rem;
	font-family: var(--font-sans);
	font-weight: 600;
	line-height: 1;
	text-decoration: none;
	border: 1px solid transparent;
	border-radius: var(--radius-pill);
	cursor: pointer;
	transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
		transform 0.2s var(--ease);
}
.btn--primary {
	background: var(--c-indigo);
	color: #fff;
}
.btn--primary:hover {
	background: var(--c-indigo-700);
	color: #fff;
}
.btn--primary:active {
	transform: translateY(1px);
}

/* ---------------------------------------------------------------------------
   Header
   --------------------------------------------------------------------------- */
.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(255, 255, 255, 0.92);
	backdrop-filter: saturate(180%) blur(8px);
	-webkit-backdrop-filter: saturate(180%) blur(8px);
	border-bottom: 1px solid var(--c-line);
}
.site-header__inner {
	width: min(100% - 2.5rem, var(--container));
	margin-inline: auto;
	min-height: var(--header-h);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
}
.brand {
	display: inline-flex;
	align-items: center;
	text-decoration: none;
	flex-shrink: 0;
}
.brand__logo {
	width: 56px;
	height: 56px;
	border-radius: 50%;
}

/* ---------------------------------------------------------------------------
   Mobile menu toggle (hamburger -> X)
   --------------------------------------------------------------------------- */
.nav-toggle {
	display: inline-flex;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	padding: 10px;
	background: transparent;
	border: 0;
	cursor: pointer;
}
.nav-toggle__bar {
	display: block;
	height: 2px;
	width: 100%;
	background: var(--c-indigo);
	border-radius: 2px;
	transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
	opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* ---------------------------------------------------------------------------
   Navigation — mobile-first (collapsed dropdown panel)
   --------------------------------------------------------------------------- */
.site-nav {
	position: absolute;
	left: 0;
	right: 0;
	top: var(--header-h);
	display: none;
	flex-direction: column;
	gap: 0.25rem;
	padding: 1rem 1.25rem 1.5rem;
	background: #fff;
	border-bottom: 1px solid var(--c-line);
	box-shadow: var(--shadow-md);
}
.site-nav.is-open {
	display: flex;
}
.nav {
	display: flex;
	flex-direction: column;
	gap: 0.1rem;
	margin: 0;
	padding: 0;
	list-style: none;
}
.nav__item {
	position: relative;
}
.nav__link {
	display: block;
	padding: 0.7rem 0.5rem;
	color: var(--c-ink);
	font-weight: 500;
	text-decoration: none;
	border-radius: 8px;
	transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.nav__link:hover {
	color: var(--c-indigo);
	background: var(--c-mist);
}
.nav__item--active > .nav__link,
.nav__link--active {
	color: var(--c-indigo);
	font-weight: 600;
}

/* CTA inside the nav (collapses into the menu on mobile) */
.site-nav__cta {
	align-self: flex-start;
	margin-top: 0.75rem;
}

/* Administration (privileged users) */
.nav__link--admin {
	color: var(--c-admin);
	font-weight: 600;
}
.nav__sublist {
	list-style: none;
	margin: 0;
	padding: 0;
}
.nav__sublist--admin {
	padding-left: 0.75rem;
	border-left: 2px solid var(--c-line);
	margin: 0.1rem 0 0.4rem;
}
.nav__item--admin-child .nav__link {
	padding-block: 0.5rem;
	font-weight: 500;
	color: var(--c-stone);
}
.nav__item--admin-child .nav__link:hover {
	color: var(--c-admin);
}

/* ---------------------------------------------------------------------------
   Navigation — desktop (>= 880px)
   --------------------------------------------------------------------------- */
@media (min-width: 880px) {
	.nav-toggle {
		display: none;
	}
	.site-nav {
		position: static;
		display: flex;
		flex-direction: row;
		align-items: center;
		gap: 0.5rem;
		padding: 0;
		background: none;
		border: 0;
		box-shadow: none;
	}
	.nav {
		flex-direction: row;
		align-items: center;
		gap: 0.25rem;
	}
	.nav__link {
		padding: 0.5rem 0.85rem;
	}
	.nav__item--active > .nav__link,
	.nav__link--active {
		box-shadow: inset 0 -2px 0 0 var(--c-indigo);
		border-radius: 0;
	}
	.site-nav__cta {
		align-self: center;
		margin-top: 0;
		margin-left: 0.5rem;
	}

	/* Administration becomes a hover/focus dropdown */
	.nav__item--has-children > .nav__link {
		display: inline-flex;
		align-items: center;
		gap: 0.3rem;
	}
	.nav__item--has-children > .nav__link::after {
		content: "";
		width: 0.4rem;
		height: 0.4rem;
		border-right: 2px solid currentColor;
		border-bottom: 2px solid currentColor;
		transform: translateY(-1px) rotate(45deg);
	}
	.nav__sublist--admin {
		position: absolute;
		top: 100%;
		right: 0;
		min-width: 230px;
		margin: 0;
		padding: 0.4rem;
		background: #fff;
		border: 1px solid var(--c-line);
		border-radius: var(--radius);
		box-shadow: var(--shadow-md);
		opacity: 0;
		visibility: hidden;
		transform: translateY(6px);
		transition: opacity 0.18s var(--ease), transform 0.18s var(--ease),
			visibility 0.18s var(--ease);
	}
	.nav__item--has-children:hover > .nav__sublist--admin,
	.nav__item--has-children:focus-within > .nav__sublist--admin {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
	}
	.nav__item--admin-child .nav__link {
		border-radius: 8px;
	}
	.nav__item--admin-child .nav__link:hover {
		background: var(--c-mist);
	}
}

/* ---------------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------------- */
.site-footer {
	background: var(--c-footer);
	color: var(--c-footer-ink);
}
.site-footer__inner {
	width: min(100% - 2.5rem, var(--container));
	margin-inline: auto;
	display: grid;
	gap: 2rem 2.5rem;
	grid-template-columns: 1fr;
	padding-block: clamp(2.5rem, 1.8rem + 3vw, 4rem);
	align-items: start;
}
.site-footer__logo {
	width: 110px;
	height: 110px;
	border-radius: 50%;
}
.site-footer__badges {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 1.25rem;
}
.site-footer__badge {
	height: 52px;
	width: auto;
}
.site-footer__heading {
	font-family: var(--font-serif);
	color: var(--c-indigo);
	font-size: 1.1rem;
	margin-bottom: 0.7rem;
}
.site-footer__list {
	list-style: none;
	margin: 0;
	padding: 0;
	line-height: 2.1;
}
.site-footer__list a,
.site-footer__address a {
	color: var(--c-footer-ink);
	text-decoration: none;
}
.site-footer__list a:hover,
.site-footer__address a:hover {
	color: var(--c-indigo);
	text-decoration: underline;
}
.site-footer__address {
	line-height: 1.9;
}
.site-footer__instagram {
	display: inline-flex;
	margin-top: 0.9rem;
}
.site-footer__instagram img {
	width: 24px;
	height: 24px;
}

@media (min-width: 720px) {
	.site-footer__inner {
		grid-template-columns: repeat(2, 1fr);
	}
}
@media (min-width: 1000px) {
	.site-footer__inner {
		grid-template-columns: 1.2fr 0.9fr 1fr 1fr;
		gap: 2.5rem;
	}
}

/* Legal bar — full-bleed navy band; content aligned to the container edges.
   The padding-inline max() trick insets the row to the container width without
   needing an inner wrapper, so the background still spans the full width. */
.site-footer__bar {
	background: var(--c-footer-bar);
	color: #fff;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: 0.5rem 1.5rem;
	padding-block: 0.95rem;
	padding-inline: max(1.25rem, (100% - var(--container)) / 2);
	font-size: 0.85rem;
}
.site-footer__copy {
	margin: 0;
	color: rgba(255, 255, 255, 0.85);
}
.site-footer__legal {
	display: flex;
	gap: 1.25rem;
}
.site-footer__legal a {
	color: rgba(255, 255, 255, 0.85);
	text-decoration: none;
}
.site-footer__legal a:hover {
	color: #fff;
	text-decoration: underline;
}

/* ---------------------------------------------------------------------------
   Back-to-top
   --------------------------------------------------------------------------- */
.back-to-top {
	position: fixed;
	right: 1.25rem;
	bottom: 1.25rem;
	z-index: 90;
	width: 46px;
	height: 46px;
	display: grid;
	place-items: center;
	background: var(--c-indigo);
	color: #fff;
	border: 0;
	border-radius: 50%;
	box-shadow: var(--shadow-md);
	cursor: pointer;
	font-size: 1.25rem;
	line-height: 1;
	opacity: 0;
	transform: translateY(8px);
	transition: opacity 0.2s var(--ease), transform 0.2s var(--ease),
		background-color 0.2s var(--ease);
}
.back-to-top.is-visible {
	opacity: 1;
	transform: translateY(0);
}
.back-to-top:hover {
	background: var(--c-indigo-700);
}