/* ==========================================================================
   header.css — en-tête du site, hamburger, menu mobile off-canvas.
   BEM : .site-header / .site-logo / .main-nav / .hamburger / .mobile-menu / .social-icons
   ========================================================================== */

/* ---------------------------------------------------------- Site header */

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

.site-header.is-scrolled {
	background-color: rgba(13, 13, 13, 0.92);
	backdrop-filter: blur(10px);
	-webkit-backdrop-filter: blur(10px);
	border-bottom-color: var(--color-border);
	box-shadow: var(--shadow-header);
}

.site-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-md);
	min-height: var(--header-height);
	padding-block: var(--space-sm);
	transition: min-height var(--duration-base) var(--ease-out);
}

.site-header.is-scrolled .site-header__inner {
	min-height: var(--header-height-scrolled);
}

/* ---------------------------------------------------------- Logo */

.site-logo {
	display: inline-flex;
	align-items: center;
	color: var(--color-text);
	font-weight: var(--fw-bold);
	letter-spacing: var(--ls-wide);
	text-transform: uppercase;
	font-size: var(--fs-lg);
}

.site-logo__image {
	display: block;
	max-height: 44px;
	width: auto;
	transition: max-height var(--duration-base) var(--ease-out);
}

.site-header.is-scrolled .site-logo__image {
	max-height: 32px;
}

/* ---------------------------------------------------------- Navigation principale (desktop) */

.main-nav {
	flex: 1 1 auto;
	display: flex;
	justify-content: center;
}

.main-nav__list {
	display: flex;
	align-items: center;
	gap: var(--space-lg);
}

.main-nav__list .menu-item > a,
.main-nav__list a {
	display: inline-block;
	padding: var(--space-2xs) 0;
	color: var(--color-text);
	font-size: var(--fs-sm);
	font-weight: var(--fw-medium);
	letter-spacing: var(--ls-wide);
	text-transform: uppercase;
	position: relative;
	transition: color var(--duration-fast) var(--ease-out);
}

.main-nav__list .menu-item > a::after {
	content: "";
	position: absolute;
	left: 0;
	bottom: -4px;
	width: 0;
	height: 2px;
	background-color: var(--color-accent);
	transition: width var(--duration-base) var(--ease-out);
}

.main-nav__list .menu-item > a:hover::after,
.main-nav__list .menu-item.current-menu-item > a::after,
.main-nav__list .menu-item.current-menu-ancestor > a::after {
	width: 100%;
}

.main-nav__list .menu-item > a:hover {
	color: var(--color-accent-light);
}

/* Sous-menus (dropdown desktop avec animation fade) */
.main-nav__list .menu-item-has-children {
	position: relative;
}

/* Petite flèche SVG inline, ajoutée via filtre PHP (nav_menu_item_title) */
.main-nav__chevron {
	display: inline-block;
	margin-left: 6px;
	vertical-align: -1px;
	opacity: 0.7;
	transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
}

.main-nav__list .menu-item-has-children:hover > a .main-nav__chevron,
.main-nav__list .menu-item-has-children:focus-within > a .main-nav__chevron {
	transform: rotate(180deg);
	opacity: 1;
}

.main-nav__list .sub-menu {
	position: absolute;
	top: calc(100% + 4px);
	left: 0;
	min-width: 240px;
	margin: 0;
	padding: var(--space-2xs) 0;
	list-style: none;
	background-color: var(--color-surface);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-sm);
	box-shadow: var(--shadow-lg);
	opacity: 0;
	visibility: hidden;
	transform: translateY(-6px);
	transition:
		opacity var(--duration-base) var(--ease-out),
		visibility 0s linear var(--duration-base),
		transform var(--duration-base) var(--ease-out);
	z-index: 50;
}

.main-nav__list .menu-item-has-children:hover > .sub-menu,
.main-nav__list .menu-item-has-children:focus-within > .sub-menu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
	transition-delay: 0s;
}

/* Hover-bridge invisible pour éviter le close pendant le déplacement souris */
.main-nav__list .menu-item-has-children::before {
	content: "";
	position: absolute;
	top: 100%;
	left: 0;
	right: 0;
	height: 8px;
	pointer-events: none;
}
.main-nav__list .menu-item-has-children:hover::before,
.main-nav__list .menu-item-has-children:focus-within::before {
	pointer-events: auto;
}

.main-nav__list .sub-menu .menu-item {
	display: block;
}

.main-nav__list .sub-menu .menu-item > a {
	display: block;
	padding: 10px 16px;
	font-size: 0.92rem;
	font-weight: var(--fw-medium);
	color: var(--color-text-muted);
	text-decoration: none;
	transition: color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.main-nav__list .sub-menu .menu-item > a:hover,
.main-nav__list .sub-menu .menu-item > a:focus-visible {
	color: var(--color-accent);
	background: rgba(var(--color-accent-rgb), 0.08);
	outline: none;
}

.main-nav__list .sub-menu .menu-item.current-menu-item > a {
	color: var(--color-accent);
	background: rgba(var(--color-accent-rgb), 0.10);
}

/* Reduced-motion : pas d'animation, juste visibility */
@media (prefers-reduced-motion: reduce) {
	.main-nav__list .sub-menu {
		transition: none;
		transform: none;
	}
}

/* ---------------------------------------------------------- Actions (social + hamburger) */

.site-header__actions {
	display: flex;
	align-items: center;
	gap: var(--space-md);
}

/* ---------------------------------------------------------- Social icons */

.social-icons {
	display: flex;
	align-items: center;
	gap: var(--space-sm);
}

.social-icons__link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 36px;
	height: 36px;
	color: var(--color-text-muted);
	border-radius: var(--radius-sm);
	transition:
		color var(--duration-fast) var(--ease-out),
		background-color var(--duration-fast) var(--ease-out);
}

.social-icons__link:hover,
.social-icons__link:focus-visible {
	color: var(--color-accent);
}

/* ---------------------------------------------------------- Hamburger */

.hamburger {
	display: none;
	flex-direction: column;
	justify-content: space-between;
	width: 32px;
	height: 22px;
	padding: 0;
	background: none;
	border: 0;
	cursor: pointer;
}

.hamburger__bar {
	display: block;
	width: 100%;
	height: 2px;
	background-color: var(--color-text);
	transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-fast) var(--ease-out);
}

.hamburger[aria-expanded="true"] .hamburger__bar:nth-child(1) {
	transform: translateY(10px) rotate(45deg);
}
.hamburger[aria-expanded="true"] .hamburger__bar:nth-child(2) {
	opacity: 0;
}
.hamburger[aria-expanded="true"] .hamburger__bar:nth-child(3) {
	transform: translateY(-10px) rotate(-45deg);
}

/* ---------------------------------------------------------- Mobile menu (off-canvas) */

.mobile-menu {
	position: fixed;
	inset: 0;
	z-index: var(--z-modal);
	background-color: rgba(13, 13, 13, 0.96);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	display: flex;
	justify-content: flex-end;
	visibility: hidden;
	opacity: 0;
	transition: opacity var(--duration-base) var(--ease-out), visibility var(--duration-base) var(--ease-out);
}

.mobile-menu[hidden] {
	display: flex;
}

.mobile-menu.is-open {
	visibility: visible;
	opacity: 1;
}

.mobile-menu__panel {
	position: relative;
	display: flex;
	flex-direction: column;
	gap: var(--space-xl);
	width: min(100%, 420px);
	height: 100%;
	padding: var(--space-xl) var(--space-lg) var(--space-lg);
	background-color: var(--color-surface);
	border-left: 1px solid var(--color-border);
	overflow-y: auto;
}

.mobile-menu__close {
	position: absolute;
	top: var(--space-md);
	right: var(--space-md);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 44px;
	height: 44px;
	color: var(--color-text);
	background: none;
	border: 0;
	cursor: pointer;
	transition: color var(--duration-fast) var(--ease-out);
}

.mobile-menu__close:hover,
.mobile-menu__close:focus-visible {
	color: var(--color-accent);
}

.mobile-menu__nav {
	margin-top: var(--space-xl);
}

.mobile-menu__list {
	display: flex;
	flex-direction: column;
	gap: var(--space-sm);
}

.mobile-menu__list .menu-item > a,
.mobile-menu__list a {
	display: block;
	padding: var(--space-2xs) 0;
	color: var(--color-text);
	font-size: var(--fs-2xl);
	font-weight: var(--fw-medium);
	letter-spacing: var(--ls-tight);
	transition: color var(--duration-fast) var(--ease-out), padding-left var(--duration-base) var(--ease-out);
}

.mobile-menu__list .menu-item > a:hover,
.mobile-menu__list .menu-item.current-menu-item > a {
	color: var(--color-accent);
	padding-left: var(--space-2xs);
}

/* Parent items du menu mobile — affichent un chevron à droite (ajouté via le
   filtre PHP nav_menu_item_title). Le chevron pivote quand le sous-menu est
   ouvert (classe .is-open posée par header.js). */
.mobile-menu__list .menu-item-has-children > a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-sm);
}

.mobile-menu__list .menu-item-has-children > a .main-nav__chevron {
	flex: 0 0 auto;
	transition: transform var(--duration-base) var(--ease-out);
	opacity: 0.6;
}

.mobile-menu__list .menu-item-has-children.is-open > a .main-nav__chevron {
	transform: rotate(180deg);
	opacity: 1;
}

.mobile-menu__list .sub-menu {
	margin-top: var(--space-2xs);
	padding-left: var(--space-md);
	display: flex;
	flex-direction: column;
	gap: var(--space-3xs);
}

.mobile-menu__list .sub-menu a {
	font-size: var(--fs-base);
	color: var(--color-text-muted);
}

.mobile-menu__social {
	margin-top: auto;
	padding-top: var(--space-md);
	border-top: 1px solid var(--color-border);
}

/* Verrouillage du scroll du body quand le menu est ouvert */
body.mobile-menu-open {
	overflow: hidden;
}

/* ---------------------------------------------------------- Responsive — breakpoint mobile */

@media (max-width: 960px) {
	.site-header__nav,
	.site-header__actions .social-icons {
		display: none;
	}
	.hamburger {
		display: flex;
	}
}

@media (min-width: 961px) {
	.mobile-menu {
		display: none !important;
	}
}