/**
 * Intimacy Insight — Header, Navigation & Mega Menu Styles
 * ------------------------------------------------------------------
 * All rules consume design-tokens.css custom properties exclusively.
 * Mobile-first: base styles are for mobile, desktop overrides inside
 * @media (min-width: 1024px) blocks.
 *
 * Breakpoints used:
 *   md  : 768px  (tablet: mobile-menu threshold, search panel width)
 *   lg  : 1024px (desktop: header layout switches to horizontal nav)
 */

/* ====================================================================
   1. HEADER SHELL
   ==================================================================== */

.ii-header {
	position: relative;
	z-index: var(--ii-z-header);
	background-color: var(--ii-color-bg);
	border-bottom: 1px solid var(--ii-color-border);
	transition: box-shadow var(--ii-transition-base),
	            background-color var(--ii-transition-base);
}

/* Sticky — applied only when JS adds .is-sticky (scroll triggered) */
.ii-header--sticky {
	position: sticky;
	top: 0;
}

.ii-header.is-sticky {
	box-shadow: var(--ii-shadow-md);
}

/* Shrink effect: reduce vertical padding slightly once scrolled */
.ii-header.is-scrolled .ii-header__bar {
	padding-block: var(--ii-space-2);
}

/* ====================================================================
   2. HEADER INNER LAYOUT
   ==================================================================== */

.ii-header__bar {
	padding-block: var(--ii-space-4);
	transition: padding var(--ii-transition-base);
}

.ii-header__inner {
	display: flex;
	align-items: center;
	gap: var(--ii-space-4);
}

.ii-header__logo {
	flex-shrink: 0;
	display: flex;
	align-items: center;
}

.ii-header__logo img,
.ii-header__logo .custom-logo {
	max-height: 50px;
	width: auto;
	display: block;
}

.ii-header__site-name {
	font-family: var(--ii-font-heading);
	font-size: var(--ii-text-xl);
	font-weight: var(--ii-weight-bold);
	color: var(--ii-color-text-primary);
	text-decoration: none;
	white-space: nowrap;
}

.ii-header__nav {
	display: none; /* Hidden on mobile; revealed at lg breakpoint */
	flex: 1;
}

.ii-header__actions {
	display: flex;
	align-items: center;
	gap: var(--ii-space-3);
	margin-left: auto;
}

/* ====================================================================
   3. PRIMARY MENU (desktop)
   ==================================================================== */

.ii-primary-menu {
	display: flex;
	align-items: center;
	gap: var(--ii-space-2);
	list-style: none;
	margin: 0;
	padding: 0;
}

.ii-menu-item {
	position: relative;
}

.ii-menu-link {
	display: flex;
	align-items: center;
	gap: var(--ii-space-1);
	padding: var(--ii-space-2) var(--ii-space-3);
	font-size: var(--ii-text-sm);
	font-weight: var(--ii-weight-medium);
	color: var(--ii-color-text-primary);
	text-decoration: none;
	border-radius: var(--ii-radius-md);
	white-space: nowrap;
	background: none;
	border: none;
	cursor: pointer;
	transition: background-color var(--ii-transition-fast),
	            color var(--ii-transition-fast);
}

.ii-menu-link:hover,
.ii-menu-link:focus-visible {
	background-color: var(--ii-color-bg-alt);
	color: var(--ii-color-primary-dark);
}

.current-menu-item > .ii-menu-link,
.current-menu-ancestor > .ii-menu-link {
	color: var(--ii-color-primary-dark);
	font-weight: var(--ii-weight-semibold);
}

.ii-menu-link__icon {
	width: 16px;
	height: 16px;
	color: var(--ii-color-primary-dark);
}

.ii-icon--caret {
	width: 14px;
	height: 14px;
	transition: transform var(--ii-transition-fast);
}

.ii-menu-item--has-dropdown[aria-expanded="true"] .ii-icon--caret,
.ii-menu-item--mega .ii-mega-trigger[aria-expanded="true"] .ii-icon--caret {
	transform: rotate(180deg);
}

/* Standard dropdown submenu */
.ii-submenu {
	position: absolute;
	top: calc(100% + var(--ii-space-2));
	left: 0;
	min-width: 200px;
	list-style: none;
	margin: 0;
	padding: var(--ii-space-2);
	background-color: var(--ii-color-bg);
	border: 1px solid var(--ii-color-border);
	border-radius: var(--ii-radius-lg);
	box-shadow: var(--ii-shadow-lg);
	z-index: var(--ii-z-mega-menu);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-8px);
	transition: opacity var(--ii-transition-base),
	            visibility var(--ii-transition-base),
	            transform var(--ii-transition-base);
}

.ii-menu-item--has-dropdown:hover > .ii-submenu,
.ii-menu-item--has-dropdown:focus-within > .ii-submenu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.ii-submenu .ii-menu-link {
	width: 100%;
	font-size: var(--ii-text-sm);
}

/* ====================================================================
   4. MEGA MENU PANEL
   ==================================================================== */

.ii-menu-item--mega {
	position: static; /* Panel is positioned relative to the header bar */
}

.ii-mega-trigger {
	position: relative;
}

.ii-mega-panel {
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	background-color: var(--ii-color-bg);
	border-top: 2px solid var(--ii-color-primary);
	border-bottom: 1px solid var(--ii-color-border);
	box-shadow: var(--ii-shadow-xl);
	z-index: var(--ii-z-mega-menu);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-6px);
	transition: opacity var(--ii-transition-base),
	            visibility var(--ii-transition-base),
	            transform var(--ii-transition-base);
}

.ii-mega-panel[data-open="true"],
.ii-mega-trigger[aria-expanded="true"] + .ii-mega-panel {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
}

.ii-mega-panel__inner {
	display: grid;
	grid-template-columns: 260px 1fr;
	gap: var(--ii-space-6);
	padding: var(--ii-space-7) 0;
	max-width: var(--ii-container-lg);
	margin-inline: auto;
	padding-inline: var(--ii-space-5);
}

.ii-mega-panel__title {
	font-size: var(--ii-text-xl);
	font-weight: var(--ii-weight-bold);
	color: var(--ii-color-text-primary);
	margin-bottom: var(--ii-space-3);
}

.ii-mega-panel__description {
	font-size: var(--ii-text-sm);
	color: var(--ii-color-text-secondary);
	line-height: var(--ii-leading-relaxed);
	margin-bottom: var(--ii-space-5);
}

.ii-mega-panel__view-all {
	display: inline-flex;
	align-items: center;
	gap: var(--ii-space-2);
	font-size: var(--ii-text-sm);
	font-weight: var(--ii-weight-medium);
}

.ii-mega-panel__grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	gap: var(--ii-space-2);
	list-style: none;
	margin: 0;
	padding: 0;
}

.ii-mega-panel__link {
	display: flex;
	align-items: center;
	gap: var(--ii-space-3);
	padding: var(--ii-space-3) var(--ii-space-4);
	border-radius: var(--ii-radius-md);
	text-decoration: none;
	transition: background-color var(--ii-transition-fast);
}

.ii-mega-panel__link:hover,
.ii-mega-panel__link:focus-visible {
	background-color: var(--ii-color-primary-light);
}

.ii-mega-panel__item-icon {
	width: 20px;
	height: 20px;
	flex-shrink: 0;
	color: var(--ii-color-primary-dark);
}

.ii-mega-panel__item-name {
	display: block;
	font-size: var(--ii-text-sm);
	font-weight: var(--ii-weight-medium);
	color: var(--ii-color-text-primary);
	line-height: var(--ii-leading-tight);
}

.ii-mega-panel__item-count {
	display: block;
	font-size: var(--ii-text-xs);
	color: var(--ii-color-text-secondary);
	margin-top: 2px;
}

/* ====================================================================
   5. HEADER ACTION BUTTONS
   ==================================================================== */

.ii-header__icon-btn {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 40px;
	height: 40px;
	border: none;
	border-radius: var(--ii-radius-md);
	background: none;
	cursor: pointer;
	color: var(--ii-color-text-primary);
	transition: background-color var(--ii-transition-fast),
	            color var(--ii-transition-fast);
}

.ii-header__icon-btn:hover,
.ii-header__icon-btn:focus-visible {
	background-color: var(--ii-color-bg-alt);
	color: var(--ii-color-primary-dark);
}

.ii-header__icon-btn .ii-icon {
	width: 20px;
	height: 20px;
}

/* Dark mode toggle — shows sun in dark, moon in light */
[data-theme="dark"] .ii-theme-toggle__icon--sun { display: flex; }
[data-theme="dark"] .ii-theme-toggle__icon--moon { display: none; }
[data-theme="light"] .ii-theme-toggle__icon--sun { display: none; }
[data-theme="light"] .ii-theme-toggle__icon--moon { display: flex; }
.ii-theme-toggle__icon--sun { display: none; }
.ii-theme-toggle__icon--moon { display: flex; }

/* Mobile menu trigger: always visible; hidden at desktop */
.ii-mobile-menu-trigger {
	display: flex;
}

/* ====================================================================
   6. SHARED BUTTON COMPONENT (used in header CTA + mega menu)
   ==================================================================== */

.ii-btn {
	display: inline-flex;
	align-items: center;
	gap: var(--ii-space-2);
	padding: 10px var(--ii-space-5);
	border-radius: var(--ii-radius-md);
	font-size: var(--ii-text-sm);
	font-weight: var(--ii-weight-semibold);
	line-height: 1;
	text-decoration: none;
	cursor: pointer;
	border: 2px solid transparent;
	transition: background-color var(--ii-transition-fast),
	            color var(--ii-transition-fast),
	            border-color var(--ii-transition-fast),
	            box-shadow var(--ii-transition-fast);
}

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

.ii-btn--primary {
	background-color: var(--ii-color-primary);
	color: var(--ii-color-text-on-primary);
	border-color: var(--ii-color-primary);
}

.ii-btn--primary:hover {
	background-color: var(--ii-color-primary-dark);
	border-color: var(--ii-color-primary-dark);
	color: var(--ii-color-text-on-primary);
}

.ii-btn--accent {
	background-color: var(--ii-color-accent);
	color: #fff;
	border-color: var(--ii-color-accent);
}

.ii-btn--accent:hover {
	filter: brightness(0.9);
	color: #fff;
}

.ii-btn--ghost {
	background-color: transparent;
	color: var(--ii-color-primary-dark);
	border-color: var(--ii-color-primary);
}

.ii-btn--ghost:hover {
	background-color: var(--ii-color-primary-light);
}

.ii-btn--block {
	width: 100%;
	justify-content: center;
}

/* ====================================================================
   7. SEARCH OVERLAY
   ==================================================================== */

.ii-search-overlay {
	position: fixed;
	inset: 0;
	z-index: var(--ii-z-modal);
	display: flex;
	align-items: flex-start;
}

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

.ii-search-overlay__backdrop {
	position: absolute;
	inset: 0;
	background-color: rgba(0, 0, 0, 0.5);
	cursor: pointer;
}

.ii-search-overlay__panel {
	position: relative;
	width: 100%;
	background-color: var(--ii-color-bg);
	padding-block: var(--ii-space-7);
	box-shadow: var(--ii-shadow-xl);
	animation: ii-slide-down var(--ii-transition-base) ease both;
}

@keyframes ii-slide-down {
	from { transform: translateY(-100%); opacity: 0; }
	to   { transform: translateY(0);     opacity: 1; }
}

.ii-search-overlay__inner {
	position: relative;
}

.ii-search-form {
	display: flex;
	align-items: center;
	gap: var(--ii-space-3);
	border-bottom: 2px solid var(--ii-color-primary);
	padding-bottom: var(--ii-space-3);
}

.ii-search-form__icon {
	width: 24px;
	height: 24px;
	flex-shrink: 0;
	color: var(--ii-color-text-secondary);
}

.ii-search-form__input {
	flex: 1;
	border: none;
	outline: none;
	font-family: var(--ii-font-body);
	font-size: var(--ii-text-2xl);
	color: var(--ii-color-text-primary);
	background: transparent;
}

.ii-search-form__input::placeholder {
	color: var(--ii-color-text-secondary);
}

.ii-search-form__submit {
	padding: var(--ii-space-2) var(--ii-space-5);
	background-color: var(--ii-color-primary);
	color: #fff;
	border: none;
	border-radius: var(--ii-radius-md);
	font-size: var(--ii-text-sm);
	font-weight: var(--ii-weight-semibold);
	cursor: pointer;
	transition: background-color var(--ii-transition-fast);
}

.ii-search-form__submit:hover {
	background-color: var(--ii-color-primary-dark);
}

.ii-search-overlay__close {
	position: absolute;
	top: 0;
	right: 0;
	display: flex;
	align-items: center;
	gap: var(--ii-space-1);
	background: none;
	border: none;
	cursor: pointer;
	color: var(--ii-color-text-secondary);
	font-size: var(--ii-text-sm);
	padding: var(--ii-space-2);
	border-radius: var(--ii-radius-md);
	transition: color var(--ii-transition-fast);
}

.ii-search-overlay__close:hover {
	color: var(--ii-color-text-primary);
}

.ii-search-overlay__close .ii-icon {
	width: 20px;
	height: 20px;
}

.ii-search-results {
	margin-top: var(--ii-space-5);
	min-height: 40px;
}

/* ====================================================================
   8. MOBILE MENU (off-canvas)
   ==================================================================== */

.ii-mobile-menu {
	position: fixed;
	inset: 0;
	z-index: var(--ii-z-mobile-nav);
	display: flex;
}

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

.ii-mobile-menu__backdrop {
	position: absolute;
	inset: 0;
	background-color: rgba(0, 0, 0, 0.5);
	cursor: pointer;
}

.ii-mobile-menu__panel {
	position: relative;
	width: min(320px, 90vw);
	height: 100%;
	background-color: var(--ii-color-bg);
	overflow-y: auto;
	overflow-x: hidden;
	display: flex;
	flex-direction: column;
	box-shadow: var(--ii-shadow-xl);
	transform: translateX(-100%);
	transition: transform var(--ii-transition-slow);
}

.ii-mobile-menu:not([hidden]) .ii-mobile-menu__panel {
	transform: translateX(0);
}

.ii-mobile-menu__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: var(--ii-space-4) var(--ii-space-5);
	border-bottom: 1px solid var(--ii-color-border);
	flex-shrink: 0;
}

.ii-mobile-menu__logo img {
	max-height: 36px;
	width: auto;
}

.ii-mobile-menu__close {
	margin-left: auto;
}

.ii-mobile-menu__nav {
	flex: 1;
	padding: var(--ii-space-4) 0;
}

/* Mobile accordion */
.ii-mobile-accordion {
	list-style: none;
	margin: 0;
	padding: 0;
}

.ii-mobile-accordion__item {
	border-bottom: 1px solid var(--ii-color-border);
}

.ii-mobile-accordion__trigger {
	display: flex;
	align-items: center;
	gap: var(--ii-space-3);
	width: 100%;
	padding: var(--ii-space-4) var(--ii-space-5);
	background: none;
	border: none;
	cursor: pointer;
	font-size: var(--ii-text-base);
	font-weight: var(--ii-weight-medium);
	color: var(--ii-color-text-primary);
	text-align: left;
	transition: background-color var(--ii-transition-fast);
}

.ii-mobile-accordion__trigger:hover {
	background-color: var(--ii-color-bg-alt);
}

.ii-mobile-accordion__caret {
	width: 16px;
	height: 16px;
	margin-left: auto;
	transition: transform var(--ii-transition-fast);
}

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

.ii-mobile-accordion__panel {
	background-color: var(--ii-color-bg-alt);
	border-top: 1px solid var(--ii-color-border);
}

.ii-mobile-accordion__panel ul {
	list-style: none;
	margin: 0;
	padding: var(--ii-space-2) 0;
}

.ii-mobile-accordion__panel a {
	display: block;
	padding: var(--ii-space-3) var(--ii-space-7);
	font-size: var(--ii-text-sm);
	color: var(--ii-color-text-secondary);
	text-decoration: none;
	transition: color var(--ii-transition-fast);
}

.ii-mobile-accordion__panel a:hover {
	color: var(--ii-color-primary-dark);
}

.ii-mobile-accordion__view-all a {
	color: var(--ii-color-primary-dark);
	font-weight: var(--ii-weight-medium);
	border-top: 1px solid var(--ii-color-border);
	margin-top: var(--ii-space-1);
}

/* Regular menu items injected by walker into mobile menu */
.ii-mobile-menu__nav .ii-menu-item {
	border-bottom: 1px solid var(--ii-color-border);
}

.ii-mobile-menu__nav .ii-menu-link {
	width: 100%;
	padding: var(--ii-space-4) var(--ii-space-5);
	border-radius: 0;
	font-size: var(--ii-text-base);
}

.ii-mobile-menu__cta {
	padding: var(--ii-space-5);
	border-top: 1px solid var(--ii-color-border);
}

.ii-mobile-menu__social {
	display: flex;
	gap: var(--ii-space-4);
	padding: var(--ii-space-5);
}

/* ====================================================================
   9. BREADCRUMB BAR
   ==================================================================== */

.ii-breadcrumb-bar {
	background-color: var(--ii-color-bg-alt);
	border-bottom: 1px solid var(--ii-color-border);
	padding-block: var(--ii-space-2);
}

.ii-breadcrumbs__list {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0;
	list-style: none;
	margin: 0;
	padding: 0;
}

.ii-breadcrumbs__item {
	display: flex;
	align-items: center;
}

.ii-breadcrumbs__link {
	font-size: var(--ii-text-xs);
	color: var(--ii-color-text-secondary);
	text-decoration: none;
	padding: var(--ii-space-1) 0;
	transition: color var(--ii-transition-fast);
}

.ii-breadcrumbs__link:hover {
	color: var(--ii-color-primary-dark);
}

.ii-breadcrumbs__current {
	font-size: var(--ii-text-xs);
	color: var(--ii-color-text-primary);
	font-weight: var(--ii-weight-medium);
}

.ii-breadcrumbs__separator {
	display: flex;
	align-items: center;
	padding-inline: var(--ii-space-1);
	color: var(--ii-color-border);
}

.ii-icon--breadcrumb-sep {
	width: 12px;
	height: 12px;
}

/* ====================================================================
   10. SOCIAL LINK COMPONENT
   ==================================================================== */

.ii-social-link {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	border-radius: var(--ii-radius-full);
	color: var(--ii-color-text-secondary);
	border: 1px solid var(--ii-color-border);
	transition: color var(--ii-transition-fast),
	            border-color var(--ii-transition-fast),
	            background-color var(--ii-transition-fast);
}

.ii-social-link:hover {
	color: var(--ii-color-primary-dark);
	border-color: var(--ii-color-primary);
	background-color: var(--ii-color-primary-light);
}

.ii-social-link .ii-icon {
	width: 16px;
	height: 16px;
}

/* ====================================================================
   11. DARK MODE OVERRIDES
   ==================================================================== */

[data-theme="dark"] {
	--ii-color-bg: #0f1117;
	--ii-color-bg-alt: #1a1d27;
	--ii-color-text-primary: #f0f0f0;
	--ii-color-text-secondary: #9ca3af;
	--ii-color-border: #2e3244;
	--ii-color-primary-light: #134E4A;
}

[data-theme="dark"] .ii-header {
	border-bottom-color: var(--ii-color-border);
}

[data-theme="dark"] .ii-mega-panel,
[data-theme="dark"] .ii-submenu {
	background-color: var(--ii-color-bg);
	border-color: var(--ii-color-border);
}

[data-theme="dark"] .ii-mobile-menu__panel {
	background-color: var(--ii-color-bg);
}

/* ====================================================================
   12. RESPONSIVE — DESKTOP REVEAL (>= 1024px)
   ==================================================================== */

@media (min-width: 1024px) {
	.ii-header__nav {
		display: flex;
	}

	.ii-mobile-menu-trigger {
		display: none;
	}

	.ii-header__cta {
		display: inline-flex;
	}
}

@media (max-width: 1023px) {
	.ii-header__cta {
		display: none; /* CTA moves inside the mobile menu */
	}

	.ii-mega-panel__grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (max-width: 767px) {
	.ii-search-form__input {
		font-size: var(--ii-text-xl);
	}

	.ii-mega-panel__grid {
		grid-template-columns: 1fr;
	}
}