/* ==========================================================================
   LAYOUT STYLES & STRUCTURAL TEMPLATES
   ========================================================================== */

/* ==========================================================================
   1. SITE HEADER & NAVIGATION
   ========================================================================== */
.site-header {
	background-color: var(--header-bg);
	border-bottom: 1px solid var(--header-border);
	position: sticky;
	top: 0;
	z-index: 1000;
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.header-container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 76px;
}

/* Site Branding */
.site-branding {
	display: flex;
	align-items: center;
}

.site-title {
	font-size: 1.4rem;
	font-weight: 800;
	letter-spacing: -0.03em;
	color: #ffffff;
	text-decoration: none;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.site-title:hover {
	color: #ffffff;
}

.brand-badge {
	font-size: 0.7rem;
	padding: 0.2rem 0.5rem;
	background-color: var(--accent);
	color: #ffffff;
	border-radius: var(--radius-sm);
	font-weight: 700;
	letter-spacing: 0.05em;
	text-transform: uppercase;
}

/* Desktop Navigation */
.main-navigation {
	display: flex;
	align-items: center;
}

.primary-menu {
	display: flex;
	align-items: center;
	list-style: none;
	gap: 1.75rem;
	margin: 0;
	padding: 0;
}

.primary-menu > li {
	position: relative;
	padding: 0.5rem 0;
}

.primary-menu a {
	color: var(--text-muted-dark);
	font-weight: 500;
	font-size: var(--text-sm);
	text-decoration: none;
	transition: color var(--transition-fast);
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
}

.primary-menu a:hover,
.primary-menu .current-menu-item > a,
.primary-menu .current-menu-ancestor > a {
	color: #ffffff;
}

/* Dropdown arrow for items with children */
.primary-menu .menu-item-has-children > a::after {
	content: '';
	display: inline-block;
	width: 5px;
	height: 5px;
	border-right: 1.5px solid currentColor;
	border-bottom: 1.5px solid currentColor;
	transform: rotate(45deg);
	margin-top: -2px;
	transition: transform var(--transition-fast);
}

.primary-menu .menu-item-has-children:hover > a::after,
.primary-menu .menu-item-has-children.focus > a::after {
	transform: rotate(-135deg);
	margin-top: 2px;
}

/* Sub-menus styling */
.primary-menu .sub-menu {
	position: absolute;
	top: 100%;
	left: 0;
	min-width: 250px;
	max-height: 480px;
	overflow-y: auto;
	background-color: #0b1329;
	border: 1px solid rgba(255, 255, 255, 0.12);
	border-radius: var(--radius-lg);
	padding: 0.5rem 0;
	box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
	list-style: none;
	margin: 0;
	opacity: 0;
	visibility: hidden;
	transform: translateY(8px);
	transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
	z-index: 1000;
	scrollbar-width: thin;
	scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.primary-menu .sub-menu::-webkit-scrollbar {
	width: 4px;
}

.primary-menu .sub-menu::-webkit-scrollbar-thumb {
	background-color: rgba(255, 255, 255, 0.2);
	border-radius: 4px;
}

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

.primary-menu .sub-menu li {
	position: relative;
	width: 100%;
	padding: 0;
}

.primary-menu .sub-menu a {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 0.55rem 1.25rem;
	color: #94a3b8;
	font-size: 0.85rem;
	white-space: nowrap;
	transition: color var(--transition-fast), background-color var(--transition-fast);
}

.primary-menu .sub-menu a:hover,
.primary-menu .sub-menu .current-menu-item > a {
	color: #ffffff;
	background-color: rgba(59, 130, 246, 0.15);
}

/* 2nd level nested sub-menu */
.primary-menu .sub-menu .sub-menu {
	top: 0;
	left: 100%;
	margin-left: 2px;
	transform: translateX(8px);
}

.primary-menu .sub-menu .menu-item-has-children:hover > .sub-menu,
.primary-menu .sub-menu .menu-item-has-children.focus > .sub-menu {
	transform: translateX(0);
}

.primary-menu .sub-menu .menu-item-has-children > a::after {
	transform: rotate(-45deg);
	margin-top: 0;
}

.primary-menu .sub-menu .menu-item-has-children:hover > a::after {
	transform: rotate(135deg);
}

.header-cta {
	margin-left: 1.5rem;
}

/* ==========================================================================
   HEADER CONTROLS & THEME TOGGLE SWITCH
   ========================================================================== */
.header-controls {
	display: flex;
	align-items: center;
	gap: 0.75rem;
	margin-left: 1rem;
	flex-shrink: 0;
}

.theme-toggle {
	background: none;
	border: none;
	padding: 0;
	cursor: pointer;
	position: relative;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	border-radius: var(--radius-full);
	transition: transform var(--transition-fast);
	outline: none;
}

.theme-toggle:hover {
	transform: scale(1.05);
}

.theme-toggle:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Pill Track */
.theme-toggle-track {
	width: 54px;
	height: 30px;
	background-color: var(--header-toggle-track);
	border: 1.5px solid var(--header-toggle-border);
	border-radius: var(--radius-full);
	position: relative;
	display: flex;
	align-items: center;
	padding: 0 3px;
	transition: background-color var(--transition-normal), border-color var(--transition-normal);
	box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Sliding Indicator Thumb */
.theme-toggle-indicator {
	width: 22px;
	height: 22px;
	border-radius: var(--radius-full);
	background-color: var(--header-toggle-thumb);
	display: flex;
	align-items: center;
	justify-content: center;
	transform: translateX(0);
	transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background-color var(--transition-normal);
	box-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
	position: relative;
	overflow: hidden;
}

.theme-icon {
	position: absolute;
	transition: opacity 0.2s ease, transform 0.3s ease;
}

/* Light Mode: Sun is active */
.theme-icon.icon-sun {
	opacity: 1;
	transform: rotate(0deg) scale(1);
	color: #d97706; /* Warm Amber Sun */
}

.theme-icon.icon-moon {
	opacity: 0;
	transform: rotate(90deg) scale(0.5);
	color: #ffffff;
}

/* Dark Mode: Thumb slides right, Moon is active */
[data-theme="dark"] .theme-toggle-indicator {
	transform: translateX(24px);
	background-color: #3b82f6;
}

[data-theme="dark"] .theme-icon.icon-sun {
	opacity: 0;
	transform: rotate(-90deg) scale(0.5);
}

[data-theme="dark"] .theme-icon.icon-moon {
	opacity: 1;
	transform: rotate(0deg) scale(1);
}

@media (prefers-color-scheme: dark) {
	:root:not([data-theme="light"]) .theme-toggle-indicator {
		transform: translateX(24px);
		background-color: #3b82f6;
	}

	:root:not([data-theme="light"]) .theme-icon.icon-sun {
		opacity: 0;
		transform: rotate(-90deg) scale(0.5);
	}

	:root:not([data-theme="light"]) .theme-icon.icon-moon {
		opacity: 1;
		transform: rotate(0deg) scale(1);
	}
}

/* Mobile Hamburger Toggle */
.menu-toggle {
	display: none;
	background: none;
	border: 1px solid var(--border-dark);
	border-radius: var(--radius-md);
	cursor: pointer;
	padding: 0.6rem;
	color: #ffffff;
	align-items: center;
	justify-content: center;
}

.hamburger-icon,
.hamburger-icon::before,
.hamburger-icon::after {
	display: block;
	width: 22px;
	height: 2px;
	background-color: #ffffff;
	position: relative;
	transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.hamburger-icon::before,
.hamburger-icon::after {
	content: '';
	position: absolute;
	left: 0;
}

.hamburger-icon::before { top: -6px; }
.hamburger-icon::after { bottom: -6px; }

.menu-toggle[aria-expanded="true"] .hamburger-icon {
	background-color: transparent;
}

.menu-toggle[aria-expanded="true"] .hamburger-icon::before {
	transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger-icon::after {
	transform: translateY(-6px) rotate(-45deg);
}

/* ==========================================================================
   2. HERO SECTION
   ========================================================================== */
.hero-section {
	background: radial-gradient(circle at 50% 20%, #162a4a 0%, var(--primary) 70%);
	padding-top: clamp(4rem, 8vw, 7rem);
	padding-bottom: clamp(4rem, 8vw, 7rem);
	text-align: center;
	position: relative;
	overflow: hidden;
}

.hero-content {
	max-width: 820px;
	margin: 0 auto;
	position: relative;
	z-index: 2;
}

.hero-title {
	font-size: var(--text-5xl);
	color: #ffffff;
	margin-bottom: 1.25rem;
	letter-spacing: -0.035em;
	font-weight: 800;
}

.hero-subtitle {
	font-size: var(--text-lg);
	color: var(--text-muted-dark);
	margin-bottom: 2rem;
	line-height: 1.6;
}

/* ==========================================================================
   3. SITE FOOTER
   ========================================================================== */
.site-footer {
	background-color: var(--primary-dark);
	color: var(--text-muted-dark);
	padding-top: clamp(3.5rem, 6vw, 5.5rem);
	padding-bottom: 2rem;
	border-top: 1px solid var(--border-dark);
	margin-top: auto;
}

.footer-grid {
	display: grid;
	grid-template-columns: 2fr 1fr 1fr 1.5fr;
	gap: clamp(2rem, 4vw, 4rem);
	margin-bottom: 3.5rem;
}

.footer-col h4 {
	color: #ffffff;
	font-size: var(--text-sm);
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	margin-bottom: 1.25rem;
}

.footer-col ul {
	list-style: none;
	padding: 0;
	margin: 0;
}

.footer-col ul li {
	margin-bottom: 0.75rem;
}

.footer-col ul a {
	color: var(--text-muted-dark);
	font-size: var(--text-sm);
	text-decoration: none;
	transition: color var(--transition-fast);
}

.footer-col ul a:hover {
	color: #ffffff;
}

.footer-bottom {
	padding-top: 2rem;
	border-top: 1px solid var(--border-dark);
	display: flex;
	justify-content: space-between;
	align-items: center;
	flex-wrap: wrap;
	gap: 1rem;
	font-size: var(--text-xs);
	color: #64748b;
}

.social-links {
	display: flex;
	gap: 0.75rem;
	align-items: center;
}

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

.social-link:hover {
	border-color: var(--accent);
	color: #ffffff;
	background-color: var(--accent);
}