@layer components {
	.site-head {
		position: sticky;
		inset-block-start: 0;
		z-index: var(--z-5);
		background-color: oklch(from var(--color-bg) l c h / 85%);
		backdrop-filter: blur(20px) saturate(1.5);
		display: flex;
		align-items: center;
		justify-content: space-between;
		padding-block: calc(var(--stack) * 0.875);
		padding-inline: max(var(--gutter), calc((100% - var(--content-width)) / 2));
	}

	/* Brand */
	.site-head__brand {
		display: flex;
		align-items: center;
		gap: calc(var(--gutter) / 2);
		text-decoration: none;
		color: var(--primary);
	}

	.site-head__brand svg {
		block-size: 40px;
		flex-shrink: 0;
	}

	.site-head__brand span {
		font-family: var(--font-family-heading);
		font-size: 18px;
		font-weight: 700;
		letter-spacing: -0.02em;
		line-height: 22px;
	}

	/* Desktop nav */
	.site-head__nav {
		display: none;
		align-items: center;
		gap: calc(var(--gutter) * 2);
	}

	.site-head__nav a {
		font-size: 14px;
		font-weight: 500;
		line-height: 18px;
		color: var(--color-text-muted);
		text-decoration: none;
		transition: color 0.15s;
	}

	.site-head__nav a:hover {
		color: var(--color-text);
	}

	/* Dropdown menus */
	.site-head__dropdown {
		position: relative;
	}

	.site-head__dropdown > ul {
		display: none;
		position: absolute;
		inset-block-start: 100%;
		inset-inline-start: 50%;
		translate: -50% 0;
		list-style: none;
		padding-block: calc(var(--stack) * 0.75);
		padding-inline: 0;
		margin-block-start: var(--stack);
		inline-size: fit-content;
		white-space: nowrap;
		background-color: var(--color-bg);
		border: 1px solid var(--color-border);
		border-radius: 8px;
		box-shadow: 0 8px 24px oklch(from var(--color-shadow) l c h / 0.12);
	}

	.site-head__dropdown > ul::before {
		content: "";
		position: absolute;
		inset-block-start: -16px;
		inset-inline-start: 0;
		inset-inline-end: 0;
		block-size: 16px;
	}

	.site-head__dropdown:hover > ul,
	.site-head__dropdown:focus-within > ul {
		display: flex;
		flex-direction: column;
	}

	.site-head__dropdown > ul a {
		display: flex;
		align-items: center;
		gap: calc(var(--gutter) / 2);
		padding-block: calc(var(--stack) / 2);
		padding-inline: var(--gutter);
		font-size: 14px;
		font-weight: 400;
		color: var(--color-text-muted);
		text-decoration: none;
		transition:
			color 0.15s,
			background-color 0.15s;
	}

	.site-head__dropdown > ul a:hover {
		color: var(--color-text);
	}

	@media (hover) and (prefers-reduced-motion: no-preference) {
		.site-head__dropdown > ul > li {
			transition: opacity 0.3s ease;
		}

		.site-head__dropdown > ul:has(li:hover) > li:not(:hover) {
			opacity: 0.25;
		}
	}

	/* Mega menu (Solutions) */
	.site-head__mega {
		display: none;
		position: absolute;
		inset-block-start: 100%;
		inset-inline-start: 0;
		margin-block-start: var(--stack);
		inline-size: max-content;
		max-inline-size: 40rem;
		padding: calc(var(--stack) * 0.75);
		background-color: var(--color-bg);
		border: 1px solid var(--color-border);
		border-radius: 12px;
		box-shadow: 0 8px 24px oklch(from var(--color-shadow) l c h / 0.12);
	}

	.site-head__mega::before {
		content: "";
		position: absolute;
		inset-block-start: -16px;
		inset-inline: 0;
		block-size: 16px;
	}

	.site-head__dropdown:hover > .site-head__mega,
	.site-head__dropdown:focus-within > .site-head__mega {
		display: grid;
		grid-template-columns: max-content 13rem;
		gap: calc(var(--gutter) * 1.5);
	}

	.site-head__mega-main {
		display: flex;
		flex-direction: column;
	}

	.site-head__mega-list a {
		display: flex;
		align-items: center;
		gap: calc(var(--gutter) / 2);
		padding-block: calc(var(--stack) / 2);
		padding-inline: calc(var(--gutter) / 2);
		border-radius: 8px;
		font-size: 14px;
		color: var(--color-text-muted);
		text-decoration: none;
		white-space: nowrap;
		transition:
			color 0.15s,
			background-color 0.15s;
	}

	.site-head__mega-list a:hover {
		color: var(--color-text);
		background-color: var(--color-bg-2);
	}

	.site-head__mega .site-head__mega-all {
		margin-block-start: calc(var(--stack) / 2);
		padding-block-start: calc(var(--stack) * 0.75);
		padding-inline: calc(var(--gutter) / 2);
		border-block-start: 1px solid var(--color-border);
		font-size: 13px;
		font-weight: 500;
		white-space: nowrap;
		color: var(--color-accent);
	}

	/* Featured panel (POTSup) */
	.site-head__mega-feature {
		display: flex;
		flex-direction: column;
		gap: calc(var(--stack) / 4);
		padding: var(--gutter);
		border-radius: 10px;
		background-color: var(--color-bg-2);
		text-decoration: none;
		transition: background-color 0.15s;
	}

	.site-head__mega-feature:hover {
		background-color: oklch(from var(--color-accent) l c h / 0.1);
	}

	.site-head__mega-feature-label {
		font-size: 11px;
		font-weight: 600;
		letter-spacing: 0.08em;
		text-transform: uppercase;
		color: var(--color-accent);
	}

	.site-head__mega-feature-title {
		font-family: var(--font-family-heading);
		font-size: 16px;
		font-weight: 700;
		color: var(--color-text);
	}

	.site-head__mega-feature-desc {
		font-size: 13px;
		color: var(--color-text-muted);
	}

	.site-head__mega-feature-arrow {
		margin-block-start: auto;
		padding-block-start: calc(var(--stack) / 2);
		font-size: 13px;
		font-weight: 500;
		color: var(--color-accent);
	}

	.dropdown-hex {
		display: grid;
		place-items: center;
		inline-size: 22px;
		block-size: 24px;
		flex-shrink: 0;
	}

	.dropdown-hex svg {
		fill: var(--hex-fill, var(--color-text));
		grid-area: 1 / 1;
		inline-size: 22px;
		block-size: 24px;
	}

	.dropdown-hex > span {
		grid-area: 1 / 1;
		font-size: 10px;
		font-weight: 700;
		color: var(--color-bg);
	}

	@media (min-width: 50em) {
		.site-head__nav {
			display: flex;
		}
	}

	/* Right actions (phone + button) */
	.site-head__actions {
		display: none;
		align-items: center;
		gap: var(--gutter);
	}

	.site-head__phone {
		font-size: 14px;
		font-weight: 500;
		line-height: 18px;
		color: var(--color-text);
		text-decoration: none;
	}

	.site-head__button {
		display: inline-block;
		font-size: 16px;
		font-weight: 500;
		line-height: 20px;
		color: var(--color-bg);
		background-color: var(--color-text);
		border-radius: 6px;
		padding-block: calc(var(--stack) * 0.75);
		padding-inline: calc(var(--gutter) * 1.5);
		text-decoration: none;
		transition: opacity 0.15s;
	}

	.site-head__button:hover {
		opacity: 0.85;
	}

	@media (min-width: 50em) {
		.site-head__actions {
			display: flex;
		}
	}

	/* Mobile menu toggle */
	.site-head__menu {
		justify-self: end;
	}

	@media (min-width: 50em) {
		.site-head__menu {
			display: none;
		}
	}

	/* Mobile nav dialog */
	#mobile-nav {
		inline-size: calc(100vw - var(--gutter) * 2);
		inset-block-start: calc(var(--stack) * 3);
		translate: 0;
	}

	.mobile-nav__header {
		display: flex;
		justify-content: space-between;
		align-items: center;
		padding-block-end: calc(var(--stack) * 0.75);
		margin-block-end: calc(var(--stack) * 0.75);
		border-block-end: var(--border-width-sm) solid var(--color-border);
	}

	.mobile-nav__header svg {
		block-size: 1.5rem;
		inline-size: auto;
	}

	#mobile-nav > ul {
		display: grid;
		gap: calc(var(--stack) / 2);
	}

	#mobile-nav a {
		font-size: var(--font-size-md);
		padding-block: calc(var(--stack) * 0.75);
		padding-inline: calc(var(--gutter) * 0.75);
	}

	#mobile-nav a:hover {
		background-color: var(--color-bg);
	}

	#mobile-nav details summary {
		cursor: pointer;
		list-style: none;
	}

	#mobile-nav details summary::-webkit-details-marker {
		display: none;
	}

	#mobile-nav details > ul {
		display: flex;
		flex-direction: column;
		padding-inline-start: calc(var(--gutter) * 0.75);
	}

	#mobile-nav details > ul a {
		font-size: var(--font-size-sm);
		padding-block: calc(var(--stack) / 2);
		padding-inline: calc(var(--gutter) * 0.75);
		color: var(--color-text-muted);
		text-decoration: none;
	}

	/* Mobile Solutions: WINDS hexes + featured POTSup */
	#mobile-nav .mobile-nav__winds a {
		display: flex;
		align-items: center;
		gap: calc(var(--gutter) / 2);
	}

	#mobile-nav .mobile-nav__feature {
		display: flex;
		flex-direction: column;
		gap: 2px;
		margin-block-start: calc(var(--stack) / 2);
		padding: var(--gutter);
		border-radius: 10px;
		background-color: var(--color-bg-2);
		text-decoration: none;
	}

	#mobile-nav .mobile-nav__feature:hover {
		background-color: oklch(from var(--color-accent) l c h / 0.1);
	}

	.mobile-nav__feature-label {
		font-size: 11px;
		font-weight: 600;
		letter-spacing: 0.08em;
		text-transform: uppercase;
		color: var(--color-accent);
	}

	.mobile-nav__feature-title {
		font-family: var(--font-family-heading);
		font-size: var(--font-size-md);
		font-weight: 700;
		color: var(--color-text);
	}

	.mobile-nav__feature-desc {
		font-size: var(--font-size-sm);
		color: var(--color-text-muted);
	}

	#mobile-nav .mobile-nav__viewall {
		display: block;
		margin-block-start: calc(var(--stack) / 2);
		padding-block: calc(var(--stack) / 2);
		padding-inline: calc(var(--gutter) * 0.75);
		border-block-start: 1px solid var(--color-border);
		font-size: var(--font-size-sm);
		font-weight: 500;
		color: var(--color-accent);
		text-decoration: none;
	}
}