/**
 * Pelagia Book Store — Header Styles
 *
 * Desktop: Logo left | Nav centered | Actions right — height 72px
 * Tablet (≤1199px): Hamburger visible, nav hidden
 * Mobile (≤767px): CSS grid — hamburger | logo+name | cart (3-area layout)
 *
 * @package Pelagia
 */

/* ── Site Header ─────────────────────────────────── */
.site-header {
	position: sticky;
	top: 0;
	z-index: var(--z-sticky);
	background-color: var(--color-white);
	border-bottom: 1px solid var(--color-border);
	transition: box-shadow var(--transition-base), transform 0.3s ease;
}

.site-header.is-scrolled {
	box-shadow: 0 2px 20px rgba(179, 73, 47, 0.08);
}

.site-header.is-hidden {
	transform: translateY(-100%);
}

/* ── Top Bar ─────────────────────────────────────── */
.header-topbar {
	width: 100%;
}

.header-topbar__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 72px;                /* 70–80px per spec */
	gap: var(--space-6);
}

/* ── Logo ────────────────────────────────────────── */
.header-logo {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	gap: var(--space-3);
}

.header-logo .custom-logo {
	height: 48px;
	width: auto;
	display: block;
}

/* Site name shown to the right of logo on desktop */
.header-logo__text {
	display: block;
	font-size: var(--text-h2);
	font-weight: var(--font-weight-bold);
	color: var(--color-secondary);
	letter-spacing: var(--letter-spacing-h2);
	text-transform: uppercase;
	text-decoration: none;
	line-height: 1;
	white-space: nowrap;
}

/* ── Primary Nav ─────────────────────────────────── */
.header-nav {
	flex: 1;
	display: flex;
	justify-content: center;
}

.header-nav__menu {
	display: flex;
	align-items: center;
	gap: var(--space-1);
	list-style: none;
}

.header-nav__menu li a {
	display: flex;
	align-items: center;
	min-height: 44px;            /* WCAG 2.5.8 touch target */
	padding: 0 var(--space-3);
	font-size: var(--text-sm);   /* 14px */
	font-weight: var(--font-weight-medium);
	color: var(--color-dark);
	text-decoration: none;
	letter-spacing: 0.01em;
	border-radius: var(--radius-sm);
	transition: color var(--transition-fast), background-color var(--transition-fast);
	white-space: nowrap;
}

/* Sliding Underline Effect (Top Level Only) */
.header-nav__menu > li > a {
	position: relative;
}

.header-nav__menu > li > a::after {
	content: '';
	position: absolute;
	bottom: 8px; /* sits cleanly under the text in the 44px box */
	left: var(--space-3); /* respects the left padding */
	width: 0;
	height: 1.5px;
	background-color: var(--color-primary);
	transition: width 200ms ease;
}

.header-nav__menu > li > a:hover::after,
.header-nav__menu > li.current-menu-item > a::after,
.header-nav__menu > li.current_page_item > a::after {
	width: calc(100% - calc(var(--space-3) * 2));
}

.header-nav__menu li a:hover,
.header-nav__menu li.current-menu-item > a,
.header-nav__menu li.current_page_item > a {
	color: var(--color-primary);
}

.header-nav__menu li a:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: -2px;
	border-radius: var(--radius-sm);
}

/* ── Dropdown ────────────────────────────────────── */
.header-nav__menu li {
	position: relative;
}

.header-nav__menu li ul {
	position: absolute;
	top: calc(100% + 8px);
	left: 50%;
	transform: translateX(-50%);
	min-width: 200px;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06); /* Ultra-soft editorial shadow */
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
	transform: translateX(-50%) translateY(-8px);
	z-index: var(--z-dropdown);
	list-style: none;
	padding: var(--space-2);
}

.header-nav__menu li:hover > ul,
.header-nav__menu li:focus-within > ul {
	opacity: 1;
	visibility: visible;
	transform: translateX(-50%) translateY(0);
}

.header-nav__menu li ul li a {
	padding: var(--space-2) var(--space-4);
	font-size: 0.9375rem;        /* 15px — dropdown items */
	border-radius: var(--radius-sm);
	width: 100%;
	transition: color 200ms ease, transform 250ms cubic-bezier(0.2, 0, 0, 1);
}

.header-nav__menu li ul li a:hover,
.header-nav__menu li ul li.current-menu-item > a,
.header-nav__menu li ul li.current_page_item > a {
	background-color: transparent;
	color: var(--color-primary);
	transform: translateX(4px);
}

/* ── Dropdown (Level 3+ / Sub-menu of Sub-menu) ───── */
.header-nav__menu li ul li ul {
	top: -4px;                   /* Align with parent menu item */
	left: 100%;                  /* Push to the right edge of the parent ul */
	transform: translateX(-8px); /* Initial pre-hover state */
	border-top: 1px solid var(--color-border); /* Remove thick primary top border */
}

.header-nav__menu li ul li:hover > ul,
.header-nav__menu li ul li:focus-within > ul {
	opacity: 1;
	visibility: visible;
	transform: translateX(4px);  /* Fly out slightly to the right */
}

/* Add an arrow indicator to sub-menu items that have children */
.header-nav__menu li ul li.menu-item-has-children > a::after {
	content: "";
	display: inline-block;
	margin-left: auto;
	width: 6px;
	height: 6px;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	transform: rotate(-45deg);
	opacity: 0.5;
}

/* ── Header Actions ──────────────────────────────── */
.header-actions {
	display: flex;
	align-items: center;
	gap: var(--space-2);
	flex-shrink: 0;
}

.header-actions__btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;                 /* WCAG 2.5.8 minimum touch target */
	height: 44px;
	border-radius: var(--radius-sm);
	color: var(--color-dark);
	background: none;
	border: none;
	cursor: pointer;
	transition: color var(--transition-fast), background-color var(--transition-fast);
	padding: 0;
}

.header-actions__btn:hover {
	color: var(--color-primary);
	background-color: rgba(179, 73, 47, 0.07);
}

.header-actions__btn:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

/* ── Currency Selector ───────────────────────────── */
.header-currency-selector {
	position: relative;
}

.currency-btn {
	display: flex;
	align-items: center;
	gap: var(--space-1);
	padding: var(--space-2) var(--space-3);
	min-height: 44px;
	font-size: var(--text-xs);
	font-weight: var(--font-weight-semibold);
	color: var(--color-dark);
	letter-spacing: var(--letter-spacing-ui);
	text-transform: uppercase;
	background: none;
	border: 1.5px solid var(--color-border);
	border-radius: var(--radius-sm);
	cursor: pointer;
	transition: all var(--transition-fast);
	white-space: nowrap;
	width: auto;
}

.currency-btn:hover {
	border-color: var(--color-primary);
	color: var(--color-primary);
	background-color: transparent;
}

.currency-btn:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
}

.currency-dropdown {
	position: absolute;
	top: calc(100% + 8px);
	right: 0;
	min-width: 140px;
	background: var(--color-white);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	box-shadow: var(--shadow-lg);
	z-index: var(--z-dropdown);
	padding: var(--space-2);
	animation: dropdownFadeIn var(--transition-fast) ease;
}

.currency-option {
	display: block;
	width: 100%;
	text-align: left;
	padding: var(--space-2) var(--space-3);
	font-size: var(--text-sm);
	color: var(--color-dark);
	background: none;
	border: none;
	border-radius: var(--radius-sm);
	cursor: pointer;
	transition: background-color var(--transition-fast);
}

.currency-option:hover {
	background-color: rgba(179, 73, 47, 0.07);
	color: var(--color-primary);
}

/* ── Cart Button ─────────────────────────────────── */
.header-cart-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	position: relative;
	width: 44px;
	height: 44px;
	color: var(--color-dark);
	border-radius: var(--radius-sm);
	transition: color var(--transition-fast), background-color var(--transition-fast);
}

.header-cart-link:hover {
	color: var(--color-primary);
	background-color: rgba(179, 73, 47, 0.07);
}

.header-cart-link:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

.cart-count {
	position: absolute;
	top: 2px;
	right: 2px;
	min-width: 18px;
	height: 18px;
	padding: 0 4px;
	font-size: 10px;
	font-weight: var(--font-weight-bold);
	color: var(--color-white);
	background-color: var(--color-primary);
	border-radius: var(--radius-full);
	display: flex;
	align-items: center;
	justify-content: center;
	line-height: 1;
	opacity: 0;
	transform: scale(0.6);
	transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.cart-count.has-items {
	opacity: 1;
	transform: scale(1);
}

/* ── Login Button ────────────────────────────────── */
.header-login-btn {
	letter-spacing: var(--letter-spacing-ui);
}

/* ── Hamburger (shows at ≤1199px) ────────────────── */
.header-hamburger {
	display: none;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	gap: 5px;
	width: 44px;
	height: 44px;
	background: none;
	border: none;
	cursor: pointer;
	padding: var(--space-2);
	border-radius: var(--radius-sm);
	transition: background-color var(--transition-fast);
}

.header-hamburger:hover {
	background-color: rgba(179, 73, 47, 0.07);
}

.header-hamburger:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

.hamburger-bar {
	display: block;
	width: 22px;
	height: 2px;
	background-color: var(--color-dark);
	border-radius: 2px;
	transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

.header-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}
.header-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(2) {
	opacity: 0;
	width: 0;
}
.header-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile Drawer — slides in from LEFT ─────────── */
.mobile-drawer {
	position: fixed;
	inset: 0 auto 0 0;            /* Left edge */
	width: min(320px, 85vw);
	background: var(--color-white);
	z-index: var(--z-modal);
	transform: translateX(-100%); /* Slide from left */
	transition: transform var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
	display: flex;
	flex-direction: column;
	box-shadow: var(--shadow-xl);
}

.mobile-drawer[aria-hidden="false"] {
	transform: translateX(0);
}

/* Drawer header: logo + site name */
.mobile-drawer__header {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	padding: var(--space-5) var(--space-6) var(--space-4);
	border-bottom: 1px solid var(--color-border);
}

.mobile-drawer__logo {
	height: 40px;
	width: auto;
	display: block;
}

.mobile-drawer__site-name {
	font-size: var(--text-md);    /* 18px */
	font-weight: var(--font-weight-bold);
	color: var(--color-secondary);
	letter-spacing: var(--letter-spacing-h2);
	text-transform: uppercase;
}

.mobile-drawer__inner {
	display: flex;
	flex-direction: column;
	height: 100%;
	overflow-y: auto;
	padding: var(--space-4) var(--space-6) var(--space-6);
}

.mobile-drawer__close {
	align-self: flex-end;
	margin-bottom: var(--space-4);
	width: 44px;
	height: 44px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--radius-sm);
	transition: background-color var(--transition-fast);
	color: var(--color-dark);
}
.mobile-drawer__close:hover { background-color: var(--color-bg-gray); }
.mobile-drawer__close:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
}

.mobile-drawer__menu {
	list-style: none;
}

.mobile-drawer__menu li a {
	display: flex;
	align-items: center;
	min-height: 52px;             /* Generous mobile touch target */
	padding: var(--space-3) 0;
	font-size: var(--text-lg);   /* 20px */
	font-weight: var(--font-weight-semibold);
	color: var(--color-dark);
	text-decoration: none;
	border-bottom: 1px solid var(--color-border);
	transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mobile-drawer__menu li a:hover {
	color: var(--color-primary);
	padding-left: var(--space-2);
}

.mobile-drawer__menu li a:focus-visible {
	outline: 2px solid var(--color-primary);
	outline-offset: 2px;
	border-radius: var(--radius-sm);
}

/* ── Mobile Drawer Submenu (Accordion) ──────────── */
.mobile-drawer__menu .menu-item-has-children {
	position: relative;
	display: flex;
	flex-wrap: wrap;
	align-items: center;
}

.mobile-drawer__menu .menu-item-has-children > a {
	flex: 1;
}

.mobile-drawer__submenu-toggle {
	width: 44px;
	height: 44px;
	display: flex;
	align-items: center;
	justify-content: center;
	background: none;
	border: none;
	color: var(--color-dark);
	cursor: pointer;
	transition: transform var(--transition-fast);
}

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

.mobile-drawer__menu ul.sub-menu {
	display: none;
	width: 100%;
	list-style: none;
	padding-left: var(--space-4);
	border-left: 2px solid var(--color-border);
	margin-left: var(--space-2);
}

.mobile-drawer__menu ul.sub-menu.is-open {
	display: block;
}

.mobile-drawer__menu ul.sub-menu li a {
	font-size: var(--text-base); /* 16px */
	font-weight: var(--font-weight-regular);
	min-height: 44px;
	border-bottom: none;
	color: var(--color-body);
}

.mobile-drawer__menu ul li a:hover {
	color: var(--color-primary);
	padding-left: var(--space-2);
}

.mobile-drawer__actions {
	display: flex;
	flex-direction: column;
	gap: var(--space-3);
	margin-top: auto;
	padding-top: var(--space-8);
}

/* ── Mobile Overlay ──────────────────────────────── */
.mobile-overlay {
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.5);
	z-index: calc(var(--z-modal) - 1);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-slow), visibility var(--transition-slow);
	backdrop-filter: blur(2px);
}

.mobile-overlay.is-active {
	opacity: 1;
	visibility: visible;
}

/* ── Search Modal ────────────────────────────────── */
.search-modal {
	position: fixed;
	inset: 0;
	z-index: var(--z-modal);
	display: flex;
	align-items: flex-start;
	justify-content: center;
	padding-top: 80px;
}

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

.search-modal__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(0, 0, 0, 0.6);
	backdrop-filter: blur(4px);
}

.search-modal__inner {
	position: relative;
	width: 100%;
	z-index: 1;
	animation: fadeSlideDown var(--transition-base) ease;
}

.search-modal__form-wrap {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	background: var(--color-white);
	border-radius: var(--radius-md);
	padding: var(--space-2);
	box-shadow: var(--shadow-xl);
}

.search-modal__input {
	flex: 1;
	border: none;
	font-size: var(--text-xl);   /* 24px */
	font-weight: var(--font-weight-medium);
	color: var(--color-dark);
	background: transparent;
	padding: var(--space-3) var(--space-4);
}

.search-modal__input::placeholder { color: var(--color-muted); }

.search-modal__close {
	width: 44px;
	height: 44px;
	display: flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--radius-sm);
	color: var(--color-muted);
	flex-shrink: 0;
	transition: color var(--transition-fast), background-color var(--transition-fast);
}
.search-modal__close:hover { color: var(--color-dark); background-color: var(--color-bg-gray); }

.search-modal__results {
	margin-top: var(--space-3);
	background: var(--color-white);
	border-radius: var(--radius-md);
	overflow: hidden;
	box-shadow: var(--shadow-xl);
}

/* ── Search Result Items ─────────────────────────── */
.search-result-item {
	display: flex;
	align-items: center;
	gap: var(--space-4);
	padding: var(--space-3) var(--space-4);
	text-decoration: none;
	color: var(--color-dark);
	transition: background-color var(--transition-fast);
	border-bottom: 1px solid var(--color-border);
}
.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover,
.search-result-item.is-focused { background-color: var(--color-bg-gray); }

.search-result-item__img {
	width: 48px;
	height: 60px;
	object-fit: cover;
	border-radius: var(--radius-sm);
	flex-shrink: 0;
	background: var(--color-bg-light);
}

.search-result-item__title {
	font-size: var(--text-sm);
	font-weight: var(--font-weight-semibold);
	line-height: var(--line-height-snug);
	margin-bottom: var(--space-1);
}

.search-result-item__meta {
	display: flex;
	align-items: center;
	gap: var(--space-3);
	font-size: var(--text-xs);
	color: var(--color-muted);
}

.search-result-item__price {
	font-weight: var(--font-weight-semibold);
	color: var(--color-primary);
}

.search-result-item__type {
	font-size: var(--text-xs);
	padding: 2px 6px;
	background: var(--color-bg-light);
	border-radius: var(--radius-full);
	text-transform: uppercase;
	letter-spacing: var(--letter-spacing-ui);
}

.search-results__view-all {
	display: block;
	text-align: center;
	padding: var(--space-3);
	font-size: var(--text-sm);
	font-weight: var(--font-weight-semibold);
	color: var(--color-primary);
	border-top: 1px solid var(--color-border);
	text-decoration: none;
	transition: background-color var(--transition-fast);
}
.search-results__view-all:hover { background-color: var(--color-bg-gray); }

.search-results__empty,
.search-results__loading {
	padding: var(--space-8);
	text-align: center;
	color: var(--color-muted);
	font-size: var(--text-sm);
}

/* ── Animations ──────────────────────────────────── */
@keyframes dropdownFadeIn {
	from { opacity: 0; transform: translateY(-6px); }
	to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeSlideDown {
	from { opacity: 0; transform: translateY(-16px); }
	to   { opacity: 1; transform: translateY(0); }
}

/* ── Tablet: hide nav, show hamburger ────────────── */
@media (max-width: 1199px) {
	.header-login-btn { display: none; }
	.header-nav { display: none; }
	.header-hamburger { display: flex; }
	.header-currency-selector { display: none; }
}

/* ── Mobile: 3-area grid layout ──────────────────── */
/* hamburger (left) | logo+name (center) | cart (right) */
@media (max-width: 767px) {
	.header-topbar__inner {
		display: grid;
		grid-template-columns: 44px 1fr 44px;
		grid-template-areas: "hamburger logo cart";
		align-items: center;
		gap: var(--space-2);
		height: 60px;
		padding: 0 var(--space-4);
	}

	/* Override container padding to prevent double-padding */
	.header-topbar__inner.container {
		padding-left: var(--space-4);
		padding-right: var(--space-4);
	}

	.header-hamburger {
		grid-area: hamburger;
		display: flex;
	}

	.header-logo {
		grid-area: logo;
		justify-content: center;    /* Center logo + name horizontally */
	}

	/* On mobile show site name beside logo */
	.header-logo__text {
		font-size: var(--text-sm);  /* Smaller on mobile */
		display: block;
	}

	.header-actions {
		grid-area: cart;
		justify-content: flex-end;
		gap: 0;
	}

	/* Hide all header action buttons on mobile except the cart */
	.header-actions__btn:not(.cart-trigger) { display: none; }

	/* Show only cart on the right */
	.header-cart-link {
		display: inline-flex;
	}

	/* Nav hidden on mobile — accessible via drawer */
	.header-nav { display: none; }
}