:root {
	--header-bg: rgba(11, 11, 11, 0.92);
	--header-surface: #121212;
	--header-border: #2a2a2a;
	--header-text: #f5f5f5;
	--header-muted: #b0b0b0;
	--header-accent: #a855f7;
	--header-transition: 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.site-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	padding: 0 24px;
	background: var(--header-bg);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--header-border);
}

.header-inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 72px;
	max-width: 1280px;
	margin: 0 auto;
}

.logo {
	display: inline-flex;
	align-items: center;
	gap: 8px;
	font-family: 'Space Grotesk', 'Inter', sans-serif;
	font-weight: 700;
	font-size: 1.5rem;
	letter-spacing: -0.03em;
	color: var(--header-text);
	user-select: none;
	-webkit-user-select: none;
	outline: none;
	text-decoration: none !important;
	border-bottom: 0 !important;
}

.logo:focus,
.logo:focus-visible,
.logo:hover,
.logo:active { outline: none; background: transparent; text-decoration: none !important; border-bottom: 0 !important; }

.logo::after { display: none !important; content: none !important; }

.logo .header-site-logo {
	display: block;
	flex: 0 0 auto;
}

.logo span { color: var(--header-accent); }

.nav-links,
.nav-links ul {
	display: flex;
	gap: 2.2rem;
	align-items: center;
	margin: 0;
	padding: 0;
	list-style: none;
}

.nav-links a,
.nav-right a {
	color: var(--header-muted);
	font-family: 'Inter', sans-serif;
	font-weight: 500;
	font-size: 0.9rem;
	text-decoration: none;
	transition: color var(--header-transition);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-right a:hover,
.nav-right a:focus-visible { color: var(--header-text); }

.nav-right {
	display: flex;
	align-items: center;
	gap: 1.5rem;
	color: var(--header-muted);
}

.nav-right i { font-size: 1.2rem; }
.nav-right a:hover i,
.nav-right a:focus-visible i { color: var(--header-accent); }

.hamburger {
	display: none;
	flex-direction: column;
	gap: 5px;
	padding: 0;
	border: 0;
	background: transparent;
	cursor: pointer;
}

.hamburger span {
	display: block;
	width: 25px;
	height: 2px;
	background: var(--header-text);
	transition: transform 0.2s, opacity 0.2s;
}

.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
	display: none;
	max-width: 1280px;
	margin: 0 auto;
	padding: 1.5rem 0;
	background: var(--header-surface);
	border-bottom: 1px solid var(--header-border);
}

.mobile-menu.is-open { display: block; }
.mobile-menu-links,
.mobile-menu-links ul { margin: 0; padding: 0; list-style: none; }
.mobile-menu a { display: block; padding: 0.7rem 0; color: var(--header-muted); font-weight: 500; text-decoration: none; border-bottom: 1px solid var(--header-border); }
.mobile-menu a:hover,
.mobile-menu a:focus-visible { color: var(--header-text); }
.mobile-menu > a:last-child { border: 0; }
.mobile-menu i { width: 1.4rem; color: var(--header-accent); }

@media (max-width: 768px) {
	.nav-links,
	.nav-right .desktop-only { display: none; }
	.hamburger { display: flex; }
}