/*
 * layout.css — page shell, header, footer, containers.
 * Loaded on every page.
 */

.site {
	display: flex;
	flex-direction: column;
	min-height: 100vh;
}

.site-main {
	flex: 1 0 auto;
	padding-bottom: var(--fag-sp-8);
}

.site-main:focus {
	outline: none;
}

.container {
	width: 100%;
	max-width: var(--fag-container);
	margin-inline: auto;
	padding-inline: var(--fag-sp-4);
}

/* Constrains a block to the article reading measure. */
.container--reading {
	max-width: calc(var(--fag-reading) + var(--fag-sp-4) * 2);
}

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

.site-header {
	background: var(--fag-bg);
	border-bottom: 1px solid var(--fag-border);
	position: relative;
	z-index: 50;
}

.site-header--sticky {
	position: sticky;
	top: 0;
}

.site-header__inner {
	display: flex;
	align-items: center;
	gap: var(--fag-sp-5);
	min-height: var(--fag-header-h);
}

.site-header__brand {
	flex: none;
	margin-right: auto;
}

.site-logo {
	display: block;
	line-height: 0;
}

.site-logo__img {
	width: auto;
	max-height: 56px;
	object-fit: contain;
}

.site-title {
	margin: 0;
	font-size: var(--fag-fs-lg);
	font-weight: 700;
	line-height: 1.2;
}

.site-title a {
	color: var(--fag-navy);
	text-decoration: none;
}

.site-description {
	margin: 0;
	color: var(--fag-muted);
	font-size: var(--fag-fs-xs);
}

.site-header__actions {
	display: flex;
	align-items: center;
	gap: var(--fag-sp-2);
	flex: none;
}

.header-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	background: transparent;
	border: 1px solid transparent;
	border-radius: var(--fag-radius);
	color: var(--fag-navy);
	cursor: pointer;
}

.header-btn:hover {
	background: var(--fag-surface);
	border-color: var(--fag-border);
}

.header-btn--menu {
	display: none;
}

.header-btn--menu .icon-close,
.header-btn--menu[aria-expanded="true"] .icon-open {
	display: none;
}

.header-btn--menu[aria-expanded="true"] .icon-close {
	display: inline-block;
}

/* ---------- Primary navigation ---------- */

.primary-nav__list {
	display: flex;
	align-items: center;
	gap: var(--fag-sp-5);
	list-style: none;
	margin: 0;
	padding: 0;
}

.primary-nav__list > li {
	margin: 0;
	position: relative;
}

.primary-nav__list a {
	color: var(--fag-navy);
	font-size: var(--fag-fs-sm);
	font-weight: 600;
	text-decoration: none;
	white-space: nowrap;
}

.primary-nav__list a:hover,
.primary-nav__list a[aria-current] {
	color: var(--fag-accent);
}

.primary-nav__list .sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 220px;
	margin: 0;
	padding: var(--fag-sp-2);
	background: var(--fag-bg);
	border: 1px solid var(--fag-border);
	border-radius: var(--fag-radius);
	box-shadow: 0 8px 24px rgba(15, 43, 70, 0.1);
	list-style: none;
	opacity: 0;
	visibility: hidden;
	transform: translateY(4px);
	transition: opacity 0.12s ease, transform 0.12s ease, visibility 0.12s;
}

.primary-nav__list > li:hover > .sub-menu,
.primary-nav__list > li:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.primary-nav__list .sub-menu li {
	margin: 0;
}

.primary-nav__list .sub-menu a {
	display: block;
	padding: var(--fag-sp-2) var(--fag-sp-3);
	border-radius: var(--fag-radius-sm);
	font-weight: 500;
}

.primary-nav__list .sub-menu a:hover {
	background: var(--fag-surface);
}

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

.header-search {
	border-top: 1px solid var(--fag-border);
	background: var(--fag-surface);
	padding: var(--fag-sp-4) 0;
}

.header-search[hidden] {
	display: none;
}

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

.mobile-menu {
	border-top: 1px solid var(--fag-border);
	background: var(--fag-bg);
	padding: var(--fag-sp-4) 0 var(--fag-sp-6);
}

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

.mobile-menu__list {
	list-style: none;
	margin: 0;
	padding: 0;
}

.mobile-menu__list li {
	margin: 0;
	border-bottom: 1px solid var(--fag-border);
}

.mobile-menu__list a {
	display: block;
	padding: var(--fag-sp-3) 0;
	color: var(--fag-navy);
	font-weight: 600;
	text-decoration: none;
}

.mobile-menu__list .sub-menu {
	list-style: none;
	margin: 0 0 var(--fag-sp-2);
	padding-left: var(--fag-sp-4);
}

.mobile-menu__list .sub-menu li {
	border-bottom: 0;
}

.mobile-menu__list .sub-menu a {
	padding: var(--fag-sp-2) 0;
	font-weight: 500;
}

.mobile-menu__section {
	margin-top: var(--fag-sp-5);
}

.mobile-menu__heading {
	margin: 0 0 var(--fag-sp-2);
	font-size: var(--fag-fs-xs);
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--fag-muted);
}

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

.site-footer {
	background: var(--fag-navy);
	color: #d6e0ea;
	font-size: var(--fag-fs-sm);
	padding: var(--fag-sp-8) 0 var(--fag-sp-5);
	margin-top: auto;
}

.site-footer a {
	color: #d6e0ea;
	text-decoration: none;
}

.site-footer a:hover,
.site-footer a:focus {
	color: #ffffff;
	text-decoration: underline;
}

.site-footer__grid {
	display: grid;
	grid-template-columns: 1.6fr repeat(3, 1fr);
	gap: var(--fag-sp-6);
}

.footer-col__title {
	margin-bottom: var(--fag-sp-3);
	color: #ffffff;
	font-size: var(--fag-fs-sm);
	font-weight: 700;
	letter-spacing: 0.05em;
	text-transform: uppercase;
}

.footer-col__text {
	color: #b9c8d6;
}

.footer-col__text p:last-child {
	margin-bottom: 0;
}

.footer-col__list,
.footer-social {
	list-style: none;
	margin: 0;
	padding: 0;
}

.footer-col__list li,
.footer-social li {
	margin: 0 0 var(--fag-sp-2);
}

.footer-social {
	display: flex;
	flex-wrap: wrap;
	gap: var(--fag-sp-4);
	margin-top: var(--fag-sp-4);
}

.site-footer__bottom {
	margin-top: var(--fag-sp-7);
	padding-top: var(--fag-sp-4);
	border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.site-footer__copyright {
	margin: 0 0 var(--fag-sp-2);
	color: #b9c8d6;
}

.site-footer__disclaimer {
	margin: 0;
	color: #93a6b8;
	font-size: var(--fag-fs-xs);
	max-width: 70ch;
}