.pb-sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border-width: 0;
}

.pb-skip-link {
	position: absolute;
	top: -100%;
	left: var(--pb-space-4);
	z-index: 1000;
	padding: var(--pb-space-3) var(--pb-space-5);
	background: var(--pb-text-strong);
	color: var(--pb-surface);
	font-family: var(--pb-font-sans);
	font-size: var(--pb-text-sm);
	font-weight: 600;
	text-decoration: none;
	border-radius: 0 0 var(--pb-radius-md) var(--pb-radius-md);
	transition: top var(--pb-motion-fast) var(--pb-ease-standard);
}

.pb-skip-link:focus {
	top: 0;
}

.pb-icon {
	width: 20px;
	height: 20px;
	color: currentColor;
}

.pb-site-header {
	background: var(--pb-surface);
	border-bottom: 1px solid var(--pb-border);
}

.pb-site-header__row {
	max-width: 1180px;
	margin: 0 auto;
	padding: var(--pb-space-5) var(--pb-space-5);
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: var(--pb-space-4) var(--pb-space-6);
}

.pb-logo {
	display: inline-flex;
	color: var(--pb-text-strong);
	transition: color var(--pb-motion-fast) var(--pb-ease-standard);
}

.pb-logo svg {
	width: 130px;
	height: auto;
	aspect-ratio: 145.29 / 42.45;
}

.pb-logo:hover,
.pb-logo:focus-visible {
	color: var(--pb-accent);
}

.pb-slogan {
	margin: 0;
	font-family: var(--pb-font-hand);
	font-size: var(--pb-text-md);
	color: var(--pb-text-muted);
	flex: 1 1 auto;
}

.pb-header-actions {
	display: flex;
	align-items: center;
	gap: var(--pb-space-4);
	margin-left: auto;
}

.pb-social {
	display: flex;
	align-items: center;
	gap: var(--pb-space-3);
	list-style: none;
	margin: 0;
	padding: 0;
}

.pb-social__link {
	display: inline-flex;
	color: var(--pb-text-muted);
	transition: color var(--pb-motion-fast) var(--pb-ease-standard);
}

.pb-social__link:hover,
.pb-social__link:focus-visible {
	color: var(--pb-accent);
}

.pb-search {
	position: relative;
}

.pb-search__toggle,
.pb-theme-toggle,
.pb-hamburger,
.pb-search__submit {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	padding: 0;
	border: none;
	background: transparent;
	color: var(--pb-text-strong);
	cursor: pointer;
	border-radius: var(--pb-radius-md);
	transition: background-color var(--pb-motion-fast) var(--pb-ease-standard), color var(--pb-motion-fast) var(--pb-ease-standard);
}

.pb-search__toggle:hover,
.pb-theme-toggle:hover,
.pb-hamburger:hover,
.pb-search__submit:hover,
.pb-search__toggle:focus-visible,
.pb-theme-toggle:focus-visible,
.pb-hamburger:focus-visible {
	background: var(--pb-accent-soft);
	color: var(--pb-accent);
}

.pb-theme-toggle .pb-icon--sun {
	display: none;
}

:root[data-theme="dark"] .pb-theme-toggle .pb-icon--sun {
	display: block;
}

:root[data-theme="dark"] .pb-theme-toggle .pb-icon--moon {
	display: none;
}

.pb-search__form {
	position: absolute;
	top: calc(100% + var(--pb-space-2));
	right: 0;
	display: flex;
	align-items: center;
	gap: var(--pb-space-2);
	width: 280px;
	max-width: calc(100vw - var(--pb-space-6));
	padding: var(--pb-space-3);
	background: var(--pb-surface);
	border: 1px solid var(--pb-border);
	border-radius: var(--pb-radius-lg);
	box-shadow: var(--pb-shadow-md);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-4px);
	transition: opacity var(--pb-motion-base) var(--pb-ease-standard), transform var(--pb-motion-base) var(--pb-ease-standard), visibility var(--pb-motion-base);
}

.pb-search__form.is-open {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.pb-search__input {
	flex: 1 1 auto;
}

/* Progressive enhancement: nav.js JS ile .pb-js sınıfı ekleniyor; JS yokken
   hamburger/nav-toggle görünmez, tüm menü her zaman açık/erişilebilir kalır. */
.pb-hamburger {
	display: none;
}

.pb-js .pb-hamburger {
	display: inline-flex;
}

.pb-nav__list {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: var(--pb-space-5);
	list-style: none;
	margin: 0;
	padding: 0;
	font-family: var(--pb-font-sans);
	font-size: var(--pb-text-sm);
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: .08em;
}

.pb-nav__list a {
	color: var(--pb-text-strong);
	text-decoration: none;
	transition: color var(--pb-motion-fast) var(--pb-ease-standard);
}

.pb-nav__list a:hover,
.pb-nav__list a:focus-visible {
	color: var(--pb-accent);
}

.menu-item-has-children {
	position: relative;
}

.sub-menu {
	list-style: none;
	margin: 0;
	padding: 0;
}

.pb-submenu-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 20px;
	height: 20px;
	margin-left: var(--pb-space-1);
	padding: 0;
	border: none;
	background: transparent;
	color: inherit;
	cursor: pointer;
	font-size: .7em;
	transition: transform var(--pb-motion-fast) var(--pb-ease-standard);
}

.pb-submenu-toggle[aria-expanded="true"] {
	transform: rotate(180deg);
}

.pb-js .menu-item-has-children > .sub-menu {
	position: absolute;
	top: calc(100% + var(--pb-space-2));
	left: 0;
	min-width: 220px;
	padding: var(--pb-space-3);
	background: var(--pb-surface);
	border: 1px solid var(--pb-border);
	border-radius: var(--pb-radius-lg);
	box-shadow: var(--pb-shadow-md);
	display: flex;
	flex-direction: column;
	gap: var(--pb-space-2);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-4px);
	transition: opacity var(--pb-motion-base) var(--pb-ease-standard), transform var(--pb-motion-base) var(--pb-ease-standard), visibility var(--pb-motion-base);
	z-index: 20;
}

.pb-js .menu-item-has-children > .sub-menu.is-open {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

@media (min-width: 62em) {
	.pb-js .menu-item-has-children:focus-within > .sub-menu {
		opacity: 1;
		visibility: visible;
		transform: translateY(0);
	}
}

@media (max-width: 61.9375em) {
	.pb-js .pb-nav {
		position: fixed;
		inset: 0 0 0 auto;
		width: min(320px, 85vw);
		height: 100vh;
		overflow-y: auto;
		background: var(--pb-surface);
		box-shadow: var(--pb-shadow-lg);
		padding: var(--pb-space-8) var(--pb-space-5) var(--pb-space-5);
		transform: translateX(100%);
		transition: transform var(--pb-motion-slow) var(--pb-ease-standard);
		z-index: 100;
	}

	.pb-js .pb-nav.is-open {
		transform: translateX(0);
	}

	.pb-js .pb-nav__list {
		flex-direction: column;
		align-items: flex-start;
		gap: var(--pb-space-4);
	}

	.pb-js .menu-item-has-children > .sub-menu {
		position: static;
		box-shadow: none;
		border: none;
		padding: var(--pb-space-2) 0 0 var(--pb-space-4);
		opacity: 1;
		visibility: visible;
		transform: none;
		display: none;
	}

	.pb-js .menu-item-has-children > .sub-menu.is-open {
		display: flex;
	}
}