/* ==========================================================================
   Layout — Container, Header, Burger/Drawer, Footer
   ========================================================================== */

.container {
	max-width: var(--max-width);
	margin-inline: auto;
	padding-inline: clamp(1.25rem, 4vw, 3rem);
}

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

.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--bg);
	border-bottom: 1px solid var(--line);
	transition: padding var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out);
}

.site-header.is-scrolled {
	box-shadow: 0 8px 24px -16px oklch(22% 0.01 192 / 0.35);
}

.site-header__inner {
	max-width: var(--max-width);
	margin-inline: auto;
	padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
	transition: padding var(--dur-base) var(--ease-out);
}

.site-header.is-scrolled .site-header__inner {
	padding-block: 0.9rem;
}

.site-logo {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	flex-shrink: 0;
}

.site-logo__mark {
	color: var(--accent);
	display: inline-flex;
}

.site-logo__text {
	font-family: var(--font-display);
	font-size: 1.25rem;
	font-weight: 500;
	color: var(--primary);
}

.site-nav__list {
	display: flex;
	align-items: center;
	gap: clamp(1.5rem, 2.5vw, 2.75rem);
}

.site-nav__list a {
	font-size: 0.98rem;
	font-weight: 500;
	color: var(--text);
	padding: 0.4rem 0;
	position: relative;
}

.site-nav__list a::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: -2px;
	width: 0;
	height: 1px;
	background: var(--accent);
	transition: width var(--dur-base) var(--ease-out);
}

.site-nav__list a:hover::after,
.site-nav__list a:focus-visible::after {
	width: 100%;
}

.site-header__actions {
	display: flex;
	align-items: center;
	gap: 1.25rem;
	flex-shrink: 0;
}

.site-header__cta {
	white-space: nowrap;
}

/* ---------- Burger ---------- */

.burger {
	display: none;
	width: 44px;
	height: 44px;
	align-items: center;
	justify-content: center;
	background: none;
	border: none;
	cursor: pointer;
	padding: 0;
	flex-shrink: 0;
}

.burger__box {
	position: relative;
	display: block;
	width: 24px;
	height: 16px;
}

.burger__inner,
.burger__inner::before,
.burger__inner::after {
	position: absolute;
	width: 24px;
	height: 2px;
	background: var(--primary);
	border-radius: 2px;
	transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out), top var(--dur-base) var(--ease-out);
	left: 0;
}

.burger__inner {
	top: 7px;
}

.burger__inner::before {
	content: "";
	top: -7px;
}

.burger__inner::after {
	content: "";
	top: 7px;
}

.burger[aria-expanded="true"] .burger__inner {
	background: transparent;
}

.burger[aria-expanded="true"] .burger__inner::before {
	top: 0;
	transform: rotate(45deg);
}

.burger[aria-expanded="true"] .burger__inner::after {
	top: 0;
	transform: rotate(-45deg);
}

/* ---------- Mobile Drawer (sibling of <header>, direct child of <body>) ---------- */

.drawer-overlay {
	position: fixed;
	inset: 0;
	background: oklch(22% 0.01 192 / 0.45);
	z-index: 150;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--dur-base) var(--ease-out), visibility var(--dur-base);
}

.drawer-overlay.is-open {
	opacity: 1;
	visibility: visible;
}

.mobile-drawer {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	width: min(85vw, 380px);
	background: var(--surface);
	z-index: 200;
	transform: translateX(100%);
	transition: transform var(--dur-base) var(--ease-out);
	display: flex;
	flex-direction: column;
	padding: 1.5rem clamp(1.25rem, 5vw, 2rem) 2rem;
	overflow-y: auto;
}

.mobile-drawer.is-open {
	transform: translateX(0);
}

.mobile-drawer__head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 2.5rem;
}

.drawer-close {
	width: 40px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: none;
	border: none;
	color: var(--primary);
	cursor: pointer;
}

.mobile-drawer__list {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.mobile-drawer__list a {
	display: block;
	padding: 0.9rem 0;
	font-family: var(--font-display);
	font-size: 1.4rem;
	color: var(--primary);
	border-bottom: 1px solid var(--line);
}

.mobile-drawer__contact {
	margin-top: auto;
	padding-top: 2rem;
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.mobile-drawer__contact a:first-child {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	color: var(--text);
	font-weight: 500;
}

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

.site-footer {
	background: var(--primary);
	color: var(--primary-contrast);
}

.site-footer__top {
	max-width: var(--max-width);
	margin-inline: auto;
	padding: var(--space-md) clamp(1.25rem, 4vw, 3rem) var(--space-sm);
	display: grid;
	grid-template-columns: repeat(12, 1fr);
	gap: clamp(1.25rem, 3vw, 2.5rem);
}

.site-footer__brand {
	grid-column: span 5;
}

.site-footer__brand .site-logo__text {
	color: var(--primary-contrast);
}

.site-footer__brand p {
	opacity: 0.8;
	max-width: 36ch;
	margin-top: 1rem;
}

.site-footer__col {
	grid-column: span 3;
}

.site-footer__col h3 {
	font-family: var(--font-body);
	font-size: var(--text-xs);
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: oklch(97% 0.01 80 / 0.6);
	margin-bottom: 1.25rem;
}

.footer-nav__list {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
}

.footer-nav__list a:hover {
	opacity: 0.75;
}

.contact-list {
	display: flex;
	flex-direction: column;
	gap: 0.85rem;
}

.contact-list li {
	display: flex;
	align-items: center;
	gap: 0.6rem;
	flex-shrink: 0;
}

.site-footer__bottom {
	border-top: 1px solid oklch(97% 0.01 80 / 0.15);
	padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
	max-width: var(--max-width);
	margin-inline: auto;
	font-size: var(--text-xs);
	opacity: 0.7;
}

/* ---------- Breakpoints ---------- */

@media (max-width: 900px) {
	.site-nav { display: none; }
	.burger { display: flex; }
	.site-header__cta { display: none !important; }

	/* Desktop hover/focus-within transforms must be reset again here. */
	.site-nav__list a::after { width: 0 !important; transform: none !important; }

	.site-footer__brand { grid-column: span 12; }
	.site-footer__col { grid-column: span 6; }
}

@media (max-width: 600px) {
	.site-footer__col { grid-column: span 12; }
	.site-footer__top { padding-top: var(--space-sm); }
}