/**
 * Clinitec Component Styles
 *
 * Header, navigation (mega-menu), mobile nav, search dialog, and
 * footer component styles. Loaded after design-system.css.
 *
 * @package Clinitec
 */

/* ===================================================================
   SITE HEADER
   =================================================================== */

.site-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	background: color-mix(in oklch, var(--card) 80%, transparent);
	backdrop-filter: saturate(180%) blur(12px);
	-webkit-backdrop-filter: saturate(180%) blur(12px);
	border-bottom: 1px solid transparent;
	transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-header.is-scrolled {
	background: color-mix(in oklch, var(--card) 95%, transparent);
	border-bottom-color: var(--border);
	box-shadow: var(--shadow-sm);
}

.site-header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1.5rem;
	height: 4.5rem;
}

/* Logo */
.site-branding img,
.custom-logo {
	height: 2.5rem;
	width: auto;
	display: block;
}

/* Header actions */
.site-header-actions {
	display: flex;
	align-items: center;
	gap: 0.75rem;
}

.header-search-toggle,
.dark-mode-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.5rem;
	height: 2.5rem;
	background: transparent;
	border: 1px solid transparent;
	border-radius: var(--radius-full);
	color: var(--foreground);
	cursor: pointer;
	transition: all var(--transition-fast);
}

.header-search-toggle:hover,
.dark-mode-toggle:hover {
	background: var(--muted);
	border-color: var(--border);
}

/* Dark mode icon visibility */
.dark-mode-toggle .moon-icon { display: none; }
.dark-mode-toggle .sun-icon { display: block; }
.dark .dark-mode-toggle .moon-icon { display: block; }
.dark .dark-mode-toggle .sun-icon { display: none; }

/* Mobile nav toggle (hamburger) */
.mobile-nav-toggle {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 4px;
	width: 2.5rem;
	height: 2.5rem;
	background: transparent;
	border: none;
	cursor: pointer;
	padding: 0;
}

.mobile-nav-toggle-bar {
	display: block;
	width: 22px;
	height: 2px;
	background: var(--foreground);
	border-radius: 2px;
	transition: all var(--transition-fast);
}

.mobile-nav-toggle.is-active .mobile-nav-toggle-bar:nth-child(1) {
	transform: translateY(6px) rotate(45deg);
}
.mobile-nav-toggle.is-active .mobile-nav-toggle-bar:nth-child(2) {
	opacity: 0;
}
.mobile-nav-toggle.is-active .mobile-nav-toggle-bar:nth-child(3) {
	transform: translateY(-6px) rotate(-45deg);
}

/* ===================================================================
   NAVIGATION MENU (desktop)
   =================================================================== */

.nav-menu {
	display: flex;
	align-items: center;
	gap: 0.25rem;
	list-style: none;
	margin: 0;
	padding: 0;
}

.nav-item {
	position: relative;
}

.nav-link {
	display: inline-flex;
	align-items: center;
	gap: 0.25rem;
	padding: 0.625rem 0.875rem;
	font-size: 0.9375rem;
	font-weight: 500;
	color: var(--foreground);
	text-decoration: none;
	border-radius: var(--radius-lg);
	transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
	color: var(--accent);
	background: var(--muted);
}

.nav-link.is-active,
.current-menu-item > .nav-link {
	color: var(--accent);
}

.nav-chevron {
	opacity: 0.5;
	transition: transform var(--transition-fast);
}

.nav-item.is-open .nav-chevron {
	transform: rotate(180deg);
}

/* ===================================================================
   MEGA MENU (dropdown panel)
   =================================================================== */

.mega-menu {
	position: absolute;
	top: 100%;
	left: 0;
	z-index: 1100;
	min-width: 32rem;
	max-width: 40rem;
	padding-top: 0.75rem;
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
	pointer-events: none;
}

.nav-item.is-open .mega-menu {
	opacity: 1;
	visibility: visible;
	transform: translateY(0);
	pointer-events: auto;
}

.mega-menu__panel {
	background: var(--card);
	border: 1px solid var(--border);
	border-radius: var(--radius-2xl);
	box-shadow: var(--shadow-xl);
	padding: 1rem;
	overflow: hidden;
}

.mega-menu__grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0.5rem;
}

.mega-menu__item {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
	padding: 0.75rem;
	border-radius: var(--radius-lg);
	text-decoration: none;
	color: inherit;
	transition: background var(--transition-fast);
}

.mega-menu__item:hover,
.mega-menu__item.is-active {
	background: var(--muted);
}

.mega-menu__item-icon {
	display: flex;
	align-items: center;
	justify-content: center;
	width: 2.5rem;
	height: 2.5rem;
	flex-shrink: 0;
	border-radius: var(--radius-lg);
	background: color-mix(in srgb, var(--accent) 10%, transparent);
	color: var(--accent);
}

.mega-menu__item-icon svg {
	width: 18px;
	height: 18px;
}

.mega-menu__item-content {
	display: flex;
	flex-direction: column;
	gap: 0.125rem;
	min-width: 0;
}

.mega-menu__item-title {
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--primary);
	line-height: 1.3;
}

.mega-menu__item-desc {
	font-size: 0.75rem;
	color: var(--muted-foreground);
	line-height: 1.4;
}

/* ===================================================================
   MOBILE NAVIGATION (slide-out drawer)
   =================================================================== */

.mobile-nav-overlay {
	position: fixed;
	inset: 0;
	z-index: 1200;
	background: rgba(11, 31, 58, 0.6);
	backdrop-filter: blur(4px);
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.mobile-nav-overlay[aria-hidden="false"] {
	opacity: 1;
	visibility: visible;
}

.mobile-nav-panel {
	position: fixed;
	top: 0;
	right: 0;
	bottom: 0;
	z-index: 1300;
	width: min(100%, 24rem);
	background: var(--card);
	border-left: 1px solid var(--border);
	box-shadow: var(--shadow-2xl, var(--shadow-xl));
	transform: translateX(100%);
	transition: transform var(--transition-normal);
	display: flex;
	flex-direction: column;
	overflow-y: auto;
}

.mobile-nav-panel.is-open {
	transform: translateX(0);
}

.mobile-nav-panel__header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 1.25rem;
	border-bottom: 1px solid var(--border);
}

.mobile-nav-brand img {
	height: 2.5rem;
	width: auto;
}

.mobile-nav-close {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2.5rem;
	height: 2.5rem;
	background: transparent;
	border: none;
	color: var(--foreground);
	cursor: pointer;
	border-radius: var(--radius-lg);
	transition: background var(--transition-fast);
}

.mobile-nav-close:hover {
	background: var(--muted);
}

.mobile-nav-content {
	flex: 1;
	padding: 1rem;
	overflow-y: auto;
}

.mobile-nav-menu {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
}

.mobile-nav-menu .menu-item {
	position: relative;
}

.mobile-nav-menu .menu-item > a {
	display: block;
	padding: 0.875rem 1rem;
	font-size: 1rem;
	font-weight: 500;
	color: var(--foreground);
	text-decoration: none;
	border-radius: var(--radius-lg);
	transition: background var(--transition-fast), color var(--transition-fast);
}

.mobile-nav-menu .menu-item > a:hover,
.mobile-nav-menu .menu-item > a.is-active {
	background: var(--muted);
	color: var(--accent);
}

/* Mobile submenu */
.mobile-nav-menu .sub-menu {
	list-style: none;
	margin: 0;
	padding: 0 0 0 1rem;
	max-height: 0;
	overflow: hidden;
	transition: max-height var(--transition-normal);
}

.mobile-nav-menu .menu-item.is-expanded > .sub-menu {
	max-height: 500px;
}

.mobile-nav-menu .sub-menu a {
	font-size: 0.9375rem;
	color: var(--muted-foreground);
	padding: 0.625rem 1rem;
}

.mobile-nav-actions {
	padding: 1.25rem;
	border-top: 1px solid var(--border);
}

.mobile-nav-contact {
	padding: 0 1.25rem 1.25rem;
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
	font-size: 0.875rem;
}

.mobile-nav-contact a {
	color: var(--muted-foreground);
	text-decoration: none;
}

.mobile-nav-contact a:hover {
	color: var(--accent);
}

/* ===================================================================
   SEARCH DIALOG
   =================================================================== */

.site-search-dialog {
	position: fixed;
	inset: 0;
	z-index: 2000;
	display: flex;
	align-items: flex-start;
	justify-content: center;
	padding-top: 10vh;
	opacity: 0;
	visibility: hidden;
	transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.site-search-dialog.is-open {
	opacity: 1;
	visibility: visible;
}

.site-search-dialog__overlay {
	position: absolute;
	inset: 0;
	background: rgba(11, 31, 58, 0.6);
	backdrop-filter: blur(4px);
}

.site-search-dialog__panel {
	position: relative;
	z-index: 1;
	width: 100%;
	max-width: 36rem;
	margin-inline: 1rem;
	background: var(--card);
	border: 1px solid var(--border);
	border-radius: var(--radius-2xl);
	box-shadow: var(--shadow-2xl, var(--shadow-xl));
	overflow: hidden;
}

.site-search-dialog__header {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	padding: 1rem 1.25rem;
	border-bottom: 1px solid var(--border);
}

.site-search-dialog__icon {
	color: var(--muted-foreground);
	flex-shrink: 0;
}

.site-search-dialog__input {
	flex: 1;
	border: none;
	outline: none;
	background: transparent;
	font-size: 1rem;
	color: var(--foreground);
	font-family: var(--font-sans);
}

.site-search-dialog__input::placeholder {
	color: var(--muted-foreground);
}

.site-search-dialog__close {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 2rem;
	height: 2rem;
	background: transparent;
	border: none;
	color: var(--muted-foreground);
	cursor: pointer;
	border-radius: var(--radius-md);
	transition: all var(--transition-fast);
}

.site-search-dialog__close:hover {
	background: var(--muted);
	color: var(--foreground);
}

.site-search-dialog__results {
	max-height: 60vh;
	overflow-y: auto;
	padding: 0.5rem;
}

.site-search-dialog__hint,
.site-search-dialog__loading,
.site-search-dialog__empty,
.site-search-dialog__error {
	padding: 1.5rem;
	text-align: center;
	font-size: 0.875rem;
	color: var(--muted-foreground);
}

.site-search-result {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	padding: 0.75rem 1rem;
	border-radius: var(--radius-lg);
	text-decoration: none;
	color: inherit;
	transition: background var(--transition-fast);
}

.site-search-result:hover,
.site-search-result:focus-visible {
	background: var(--muted);
}

.site-search-result__type {
	font-size: 0.6875rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--accent);
}

.site-search-result__title {
	font-size: 0.9375rem;
	font-weight: 600;
	color: var(--primary);
}

.site-search-result__excerpt {
	font-size: 0.8125rem;
	color: var(--muted-foreground);
	line-height: 1.4;
}

/* ===================================================================
   FOOTER (enhanced)
   =================================================================== */

.footer-grid {
	grid-template-columns: 1fr;
	gap: 2.5rem;
}

/* Tablet: brand column full width, link columns in 2x2 grid */
@media (min-width: 640px) and (max-width: 1023px) {
	.footer-grid {
		grid-template-columns: 1fr;
	}
	.footer-grid .footer-column {
		display: block;
	}
	/* Wrap the 4 link columns in a sub-grid */
	.footer-grid > .footer-column:nth-child(n+2) {
		display: inline-block;
		width: 48%;
		vertical-align: top;
		margin-right: 2%;
	}
	.footer-grid > .footer-column:nth-child(even) {
		margin-right: 0;
	}
}

/* Desktop: 5 columns — brand (wider) + 4 link columns */
@media (min-width: 1024px) {
	.footer-grid {
		grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
		gap: 3rem;
	}
}

.footer-column a {
	text-decoration: none;
}

.footer-column a:hover {
	color: var(--teal-300) !important;
}

/* Ensure footer columns don't shrink too small */
.footer-column {
	min-width: 0;
}

/* Footer link list spacing */
.footer-column ul {
	margin: 0;
	padding: 0;
}

/* ===================================================================
   RESPONSIVE — Desktop / Mobile breakpoint
   =================================================================== */

@media (min-width: 1024px) {
	.mobile-nav-toggle {
		display: none;
	}
	.main-navigation {
		display: block;
	}
}

@media (max-width: 1023px) {
	.main-navigation {
		display: none;
	}
	.header-cta {
		display: none;
	}
	.header-search-toggle {
		display: none;
	}
	.dark-mode-toggle {
		display: none;
	}
	.mobile-nav-toggle {
		display: flex;
	}
}

/* ===================================================================
   DARK MODE OVERRIDES for header/nav/footer
   =================================================================== */

.dark .site-header {
	background: color-mix(in oklch, var(--navy-950) 80%, transparent);
}

.dark .site-header.is-scrolled {
	background: color-mix(in oklch, var(--navy-950) 95%, transparent);
	border-bottom-color: color-mix(in srgb, #fff 10%, transparent);
}

.dark .nav-link {
	color: var(--navy-100);
}

.dark .nav-link:hover {
	color: var(--teal-300);
	background: var(--navy-900);
}

.dark .mega-menu__panel {
	background: var(--navy-900);
	border-color: color-mix(in srgb, #fff 10%, transparent);
}

.dark .mega-menu__item:hover,
.dark .mega-menu__item.is-active {
	background: var(--navy-800);
}

.dark .mega-menu__item-title {
	color: #fff;
}

.dark .mega-menu__item-desc {
	color: var(--navy-200);
}

.dark .mobile-nav-panel {
	background: var(--navy-950);
	border-left-color: color-mix(in srgb, #fff 10%, transparent);
}

.dark .mobile-nav-menu .menu-item > a {
	color: var(--navy-100);
}

.dark .mobile-nav-menu .menu-item > a:hover {
	background: var(--navy-900);
	color: var(--teal-300);
}

.dark .site-search-dialog__panel {
	background: var(--navy-900);
	border-color: color-mix(in srgb, #fff 10%, transparent);
}

.dark .site-search-result__title {
	color: #fff;
}