/**
 * Atlas Guide — site chrome (header, mobile menu, footer).
 */

/* ---------- Header ---------- */

.mg-header {
	position: sticky;
	top: 0;
	z-index: 50;
	width: 100%;
	background: var(--mg-surface-page);
	color: var(--mg-color-charcoal);
	border-bottom: 1px solid transparent;
	transition:
		background var(--mg-transition-base),
		color var(--mg-transition-base),
		border-color var(--mg-transition-base);
}

/* On the front page the header floats over the hero until scrolled. */
.mg-header--overlay {
	position: fixed;
	background: transparent;
	color: var(--mg-color-white);
}

.mg-header--overlay.is-scrolled,
.mg-header.is-scrolled {
	background: color-mix(in srgb, var(--mg-surface-page) 96%, transparent);
	color: var(--mg-color-charcoal);
	border-bottom-color: color-mix(in srgb, var(--mg-color-charcoal) 8%, transparent);
	backdrop-filter: blur(14px);
}

.mg-header__inner {
	display: flex;
	min-height: var(--mg-header-height);
	align-items: center;
	justify-content: space-between;
	gap: var(--mg-space-6);
}

/* ---------- Brand ---------- */

.mg-brand {
	display: inline-flex;
	align-items: center;
	gap: var(--mg-space-3);
	flex-shrink: 0;
}

.mg-brand__mark {
	display: grid;
	width: 36px;
	height: 36px;
	place-items: center;
	border: 1px solid currentColor;
	border-radius: 50%;
	font-family: var(--mg-font-display);
	font-size: 1.3125rem;
	line-height: 1;
}

.mg-brand__name {
	font-size: 0.875rem;
	font-weight: 700;
	letter-spacing: 0.03em;
	text-transform: uppercase;
}

.mg-brand--light {
	color: var(--mg-color-white);
}

.mg-brand .custom-logo {
	height: auto;
	max-height: 48px;
	width: auto;
}

/* ---------- Primary nav ---------- */

.mg-header__nav {
	margin-left: auto;
}

.mg-menu {
	display: flex;
	align-items: center;
	gap: clamp(18px, 2.3vw, 34px);
	margin: 0;
	padding: 0;
	list-style: none;
}

.mg-menu a {
	position: relative;
	display: inline-block;
	padding: var(--mg-space-2) 0;
	font-size: var(--mg-text-small);
	font-weight: 600;
}

.mg-menu a::after {
	position: absolute;
	right: 0;
	bottom: 3px;
	left: 0;
	height: 1px;
	content: "";
	background: currentColor;
	transform: scaleX(0);
	transform-origin: right;
	transition: transform var(--mg-transition-fast);
}

.mg-menu a:hover::after,
.mg-menu .current-menu-item > a::after,
.mg-menu .current_page_item > a::after {
	transform: scaleX(1);
	transform-origin: left;
}

/* The last primary menu item renders as the terracotta CTA pill. */
.mg-menu .mg-menu-cta > a,
.mg-menu .menu-item-cta > a {
	display: inline-flex;
	min-height: 44px;
	align-items: center;
	padding: 0 var(--mg-space-5);
	background: var(--mg-color-terracotta);
	color: var(--mg-color-white);
	border-radius: var(--mg-radius-pill);
	transition: background var(--mg-transition-fast), transform var(--mg-transition-fast);
}

.mg-menu .mg-menu-cta > a::after,
.mg-menu .menu-item-cta > a::after {
	content: none;
}

.mg-menu .mg-menu-cta > a:hover,
.mg-menu .menu-item-cta > a:hover {
	background: var(--mg-color-terracotta-dark);
	transform: translateY(-1px);
}

/* ---------- Header actions ---------- */

.mg-header__actions {
	display: flex;
	align-items: center;
	gap: var(--mg-space-3);
}

.mg-header__whatsapp .mg-icon-whatsapp {
	flex-shrink: 0;
}

.mg-header__toggle {
	display: none;
	width: 44px;
	height: 44px;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 5px;
	padding: 0;
	background: transparent;
	border: 1px solid currentColor;
	border-radius: 50%;
	color: inherit;
}

.mg-header__toggle-bar {
	display: block;
	width: 16px;
	height: 1.5px;
	background: currentColor;
	transition: transform var(--mg-transition-fast), opacity var(--mg-transition-fast);
}

.mg-header__toggle[aria-expanded="true"] .mg-header__toggle-bar:first-child {
	transform: translateY(3.25px) rotate(45deg);
}

.mg-header__toggle[aria-expanded="true"] .mg-header__toggle-bar:last-child {
	transform: translateY(-3.25px) rotate(-45deg);
}

/* ---------- Mobile menu ---------- */

.mg-mobile-menu {
	position: fixed;
	z-index: 45;
	inset: 0;
	display: flex;
	align-items: flex-end;
	padding: 90px var(--mg-gutter) var(--mg-space-6);
	background: var(--mg-surface-page);
	color: var(--mg-color-charcoal);
	opacity: 0;
	transform: translateY(-12px);
	transition: opacity var(--mg-transition-base), transform var(--mg-transition-base);
}

.mg-mobile-menu[hidden] {
	display: none;
}

.mg-mobile-menu.is-open {
	opacity: 1;
	transform: translateY(0);
}

.mg-mobile-menu__inner {
	width: 100%;
}

.mg-mobile-menu__list {
	margin: 0 0 var(--mg-space-5);
	padding: 0;
	list-style: none;
}

.mg-mobile-menu__list a {
	display: block;
	padding: var(--mg-space-3) 0;
	border-bottom: 1px solid var(--mg-border);
	font-family: var(--mg-font-display);
	font-size: 2.25rem;
	line-height: 1.1;
}

/* ---------- Footer ---------- */

.mg-footer {
	padding: var(--mg-space-9) 0 var(--mg-space-5);
	background: var(--mg-surface-dark);
	color: var(--mg-text-on-dark);
}

.mg-footer__top {
	display: grid;
	grid-template-columns: 1.5fr 1fr 1fr 1fr;
	gap: var(--mg-space-7);
	padding-bottom: var(--mg-space-8);
}

.mg-footer__brand {
	max-width: 340px;
}

.mg-footer__brand .mg-brand {
	margin-bottom: var(--mg-space-4);
	color: var(--mg-color-white);
}

.mg-footer__tagline {
	margin: 0;
	font-size: var(--mg-text-small);
	line-height: 1.7;
}

.mg-footer__heading {
	margin: 0 0 var(--mg-space-4);
	color: var(--mg-color-white);
	font-family: var(--mg-font-body);
	font-size: var(--mg-text-eyebrow);
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
}

.mg-footer__list {
	margin: 0;
	padding: 0;
	list-style: none;
}

.mg-footer__list a {
	display: inline-block;
	margin: 6px 0;
	font-size: var(--mg-text-small);
	transition: color var(--mg-transition-fast);
}

.mg-footer__list a:hover {
	color: var(--mg-color-white);
}

.mg-footer__bottom {
	display: flex;
	justify-content: space-between;
	gap: var(--mg-space-5);
	padding-top: var(--mg-space-5);
	border-top: 1px solid rgba(255, 255, 255, 0.12);
	font-size: var(--mg-text-eyebrow);
}

/* ---------- Responsive ---------- */

@media (max-width: 950px) {
	.mg-footer__top {
		grid-template-columns: 1fr 1fr;
		gap: var(--mg-space-6);
	}

	.mg-footer__brand {
		grid-column: 1 / -1;
	}
}

@media (max-width: 820px) {
	.mg-header__nav {
		display: none;
	}

	.mg-header__toggle {
		display: flex;
	}

	.mg-header__whatsapp span {
		display: none;
	}

	.mg-header__whatsapp {
		width: 44px;
		min-height: 44px;
		padding-inline: 0;
		border-radius: 50%;
	}
}

@media (max-width: 560px) {
	.mg-footer__top {
		grid-template-columns: 1fr;
	}

	.mg-footer__bottom {
		flex-direction: column;
		gap: var(--mg-space-2);
	}
}