/*
 * Header, primary navigation, mobile drawer and footer.
 */

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

.siol-header {
	position: sticky;
	top: 0;
	z-index: 50;
	background-color: var(--siol-paper);
	border-bottom: 1px solid transparent;
	transition: border-color var(--siol-speed) var(--siol-ease),
		background-color var(--siol-speed) var(--siol-ease);
}

/* Added by navigation.js once the page is scrolled away from the top. */
.siol-header.is-scrolled {
	background-color: color-mix(in srgb, var(--siol-paper) 88%, transparent);
	border-bottom-color: var(--siol-rule);
	backdrop-filter: saturate(140%) blur(8px);
}

.siol-header__inner {
	display: flex;
	min-height: var(--siol-header-h);
	align-items: center;
	gap: clamp(1rem, 3vw, 2.75rem);
}

/* Brand lockup: leaf mark + wordmark, matching the mockup. */
.siol-brand {
	display: inline-flex;
	align-items: center;
	gap: 0.55rem;
	color: var(--siol-ink);
	font-family: var(--siol-font-display);
	font-size: 1.1875rem;
	font-weight: 500;
	letter-spacing: -0.005em;
	text-decoration: none;
	flex: none;
}

.siol-brand:hover {
	color: var(--siol-green);
}

.siol-brand__mark {
	width: 1.5rem;
	height: 1.5rem;
	flex: none;
	color: var(--siol-green);
}

.siol-brand__logo img,
.siol-brand .custom-logo {
	max-height: 2.25rem;
	width: auto;
}

/* Desktop nav + action pills */
.siol-nav__list,
.siol-actions__list {
	display: flex;
	align-items: center;
	margin: 0;
	padding: 0;
	list-style: none;
}

.siol-nav {
	margin-right: auto;
}

.siol-nav__list {
	gap: clamp(1rem, 2.2vw, 2rem);
}

.siol-actions {
	flex: none;
}

.siol-actions__list {
	gap: 1.25rem;
}

.siol-nav__list a,
.siol-actions__list a {
	color: var(--siol-text);
	font-size: 0.9375rem;
	font-weight: 450;
	text-decoration: none;
	white-space: nowrap;
	transition: color var(--siol-speed) var(--siol-ease);
}

.siol-nav__list a:hover,
.siol-nav__list .current-menu-item > a,
.siol-nav__list [aria-current="page"],
.siol-actions__list a:hover {
	color: var(--siol-ink);
}

.siol-nav__list .current-menu-item > a,
.siol-nav__list [aria-current="page"] {
	font-weight: 500;
}

/*
 * Menu items styled as pills. Add `is-button` (filled) or `is-ghost` (outline)
 * to a menu item's CSS Classes field under Appearance > Menus.
 */
.siol-nav .is-button > a,
.siol-nav .is-ghost > a,
.siol-actions .is-button > a,
.siol-actions .is-ghost > a,
.siol-drawer .is-button > a,
.siol-drawer .is-ghost > a {
	display: inline-flex;
	align-items: center;
	padding: 0.7rem 1.4rem;
	border: 1px solid transparent;
	border-radius: 999px;
	font-size: 0.9375rem;
	font-weight: 500;
	transition: background-color var(--siol-speed) var(--siol-ease),
		border-color var(--siol-speed) var(--siol-ease),
		color var(--siol-speed) var(--siol-ease);
}

.siol-nav .is-button > a,
.siol-actions .is-button > a,
.siol-drawer .is-button > a {
	background-color: var(--siol-green);
	color: #f7f4ec;
}

.siol-nav .is-button > a:hover,
.siol-actions .is-button > a:hover,
.siol-drawer .is-button > a:hover {
	background-color: var(--siol-green-dark);
	color: #fff;
}

.siol-nav .is-ghost > a,
.siol-actions .is-ghost > a,
.siol-drawer .is-ghost > a {
	border-color: var(--siol-rule-strong);
	color: var(--siol-ink);
}

.siol-nav .is-ghost > a:hover,
.siol-actions .is-ghost > a:hover,
.siol-drawer .is-ghost > a:hover {
	background-color: var(--siol-green-soft);
	border-color: var(--siol-green);
}

/* Sub-menus (desktop hover, keyboard accessible via :focus-within) */
.siol-nav .menu-item-has-children {
	position: relative;
}

.siol-nav .sub-menu {
	position: absolute;
	top: 100%;
	left: -1rem;
	z-index: 10;
	display: grid;
	min-width: 13rem;
	margin: 0;
	padding: 0.5rem;
	background-color: var(--siol-card);
	border: 1px solid var(--siol-rule);
	border-radius: 0.75rem;
	box-shadow: 0 18px 40px -24px rgba(29, 47, 38, 0.45);
	list-style: none;
	opacity: 0;
	visibility: hidden;
	transform: translateY(-0.35rem);
	transition: opacity var(--siol-speed) var(--siol-ease),
		transform var(--siol-speed) var(--siol-ease), visibility var(--siol-speed);
}

.siol-nav .menu-item-has-children:hover > .sub-menu,
.siol-nav .menu-item-has-children:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.siol-nav .sub-menu a {
	display: block;
	padding: 0.45rem 0.75rem;
	border-radius: 0.5rem;
}

.siol-nav .sub-menu a:hover {
	background-color: var(--siol-green-soft);
}

/* -----------------------------------------------------------------------------
 * Drawer toggle (hamburger)
 * -------------------------------------------------------------------------- */

.siol-nav-toggle {
	display: none;
	width: 2.75rem;
	height: 2.75rem;
	margin-right: -0.5rem;
	padding: 0;
	background: none;
	border: 0;
	border-radius: 0.5rem;
	color: var(--siol-ink);
	cursor: pointer;
}

.siol-nav-toggle:hover {
	background-color: var(--siol-green-soft);
}

.siol-nav-toggle__bars {
	display: grid;
	gap: 5px;
	justify-items: center;
	margin-inline: auto;
	width: 1.375rem;
}

.siol-nav-toggle__bars span {
	display: block;
	width: 100%;
	height: 1.5px;
	background-color: currentColor;
	transition: transform var(--siol-speed) var(--siol-ease),
		opacity var(--siol-speed) var(--siol-ease);
}

.siol-nav-toggle[aria-expanded="true"] .siol-nav-toggle__bars span:nth-child(1) {
	transform: translateY(6.5px) rotate(45deg);
}

.siol-nav-toggle[aria-expanded="true"] .siol-nav-toggle__bars span:nth-child(2) {
	opacity: 0;
}

.siol-nav-toggle[aria-expanded="true"] .siol-nav-toggle__bars span:nth-child(3) {
	transform: translateY(-6.5px) rotate(-45deg);
}

/* -----------------------------------------------------------------------------
 * Mobile drawer
 * -------------------------------------------------------------------------- */

.siol-drawer[hidden] {
	display: none;
}

.siol-drawer {
	position: fixed;
	inset: var(--siol-header-h) 0 0;
	z-index: 40;
	display: none;
	overflow-y: auto;
	padding: 2rem var(--siol-gutter) 3rem;
	background-color: var(--siol-paper);
	opacity: 0;
	transform: translateY(-0.75rem);
	transition: opacity var(--siol-speed) var(--siol-ease),
		transform var(--siol-speed) var(--siol-ease);
}

.siol-drawer.is-open {
	opacity: 1;
	transform: translateY(0);
}

.siol-drawer__list {
	display: grid;
	gap: 0.25rem;
	margin: 0 0 2rem;
	padding: 0;
	list-style: none;
	border-top: 1px solid var(--siol-rule);
}

.siol-drawer__list li {
	border-bottom: 1px solid var(--siol-rule);
}

.siol-drawer__list a {
	display: block;
	padding: 0.9rem 0;
	color: var(--siol-ink);
	font-family: var(--siol-font-display);
	font-size: 1.625rem;
	text-decoration: none;
}

.siol-drawer__list .sub-menu {
	margin: 0 0 0.75rem 1rem;
	padding: 0;
	list-style: none;
	border-top: 1px solid var(--siol-rule);
}

.siol-drawer__list .sub-menu a {
	font-family: var(--siol-font-body);
	font-size: var(--siol-step-0);
}

.siol-drawer__list .sub-menu li:last-child {
	border-bottom: 0;
}

/* Pills inside the drawer stack full width. */
.siol-drawer__actions {
	display: grid;
	gap: 0.75rem;
	margin: 0;
	padding: 0;
	list-style: none;
}

.siol-drawer__actions li {
	display: grid;
}

.siol-drawer__actions a,
.siol-drawer .is-button > a,
.siol-drawer .is-ghost > a {
	justify-content: center;
	padding: 0.9rem 1.4rem;
	border: 1px solid var(--siol-rule-strong);
	border-radius: 999px;
	color: var(--siol-ink);
	font-family: var(--siol-font-body);
	font-size: var(--siol-step-0);
	text-align: center;
	text-decoration: none;
}

.siol-drawer .is-button > a {
	border-color: transparent;
}

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

.siol-footer {
	background-color: var(--siol-paper-foot);
	border-top: 1px solid var(--siol-rule);
}

.siol-footer__inner {
	display: flex;
	align-items: center;
	gap: clamp(1.5rem, 4vw, 3rem);
	padding-block: 1.75rem;
}

.siol-footer__brand {
	margin-right: auto;
}

.siol-footer__menu,
.siol-footer__social {
	display: flex;
	align-items: center;
	margin: 0;
	padding: 0;
	list-style: none;
}

.siol-footer__menu {
	gap: 0.85rem;
	flex-wrap: wrap;
}

/* Slash separators between footer links, as in the mockup. */
.siol-footer__menu--slashed li + li::before {
	margin-right: 0.85rem;
	color: var(--siol-rule-strong);
	content: "/";
}

.siol-footer__menu li {
	display: flex;
	align-items: center;
}

.siol-footer__menu a {
	color: var(--siol-text);
	font-size: 0.875rem;
	text-decoration: none;
}

.siol-footer__menu a:hover {
	color: var(--siol-ink);
}

.siol-footer__social {
	gap: 1rem;
}

.siol-footer__social a {
	display: grid;
	width: 1.5rem;
	height: 1.5rem;
	place-items: center;
	color: var(--siol-ink);
}

.siol-footer__social a:hover {
	color: var(--siol-green);
}

.siol-footer__social svg {
	width: 1.125rem;
	height: 1.125rem;
	fill: currentColor;
}

/* Specimen credit line, bottom of the mobile mockup's footer. */
.siol-footer__specimen {
	padding-block: 0 2rem;
	margin: 0;
}

@media (max-width: 960px) {
	.siol-nav,
	.siol-actions {
		display: none;
	}

	.siol-nav-toggle {
		display: block;
		margin-left: auto;
	}

	.siol-drawer:not([hidden]) {
		display: block;
	}

	.siol-footer__inner {
		display: grid;
		justify-items: start;
		gap: 1.5rem;
		padding-block: 2.25rem 1.5rem;
	}

	.siol-footer__brand {
		margin-right: 0;
	}
}

/* Set by navigation.js while the drawer is open, to lock background scroll. */
body.siol-drawer-open {
	overflow: hidden;
}