.kd-header {
	position: sticky;
	top: 0;
	z-index: 40;
	background: linear-gradient(
		to bottom,
		rgba(5, 7, 13, 0.96),
		rgba(9, 13, 22, 0.96)
	);
	backdrop-filter: blur(18px);
	border-bottom: 1px solid rgba(56, 70, 90, 0.9);
	box-shadow: 0 12px 30px rgba(0, 0, 0, 0.85);
}
.kd-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--space-6);
	padding-block: var(--space-4);
}
.kd-header__brand {
	display: inline-flex;
	align-items: center;
	gap: var(--space-3);
	text-decoration: none;
}
.kd-header__logo-mark {
	position: relative;
	width: 38px;
	height: 38px;
	border-radius: 50%;
	background: radial-gradient(
		circle at 30% 20%,
		rgba(143, 216, 255, 0.8),
		rgba(140, 91, 234, 0.1)
	);
	display: flex;
	align-items: center;
	justify-content: center;
	box-shadow:
		var(--shadow-glow-primary),
		0 0 0 1px rgba(143, 216, 255, 0.55);
}
.kd-header__rune-orbit {
	position: absolute;
	inset: 5px;
	border-radius: inherit;
	border: 1px dashed rgba(224, 176, 74, 0.8);
	box-shadow: 0 0 14px rgba(224, 176, 74, 0.7);
}
.kd-header__rune-core {
	width: 12px;
	height: 12px;
	border-radius: 4px;
	transform: rotate(45deg);
	background: linear-gradient(
		135deg,
		var(--color-accent),
		var(--color-primary)
	);
	box-shadow: 0 0 14px rgba(224, 176, 74, 0.9);
}
.kd-header__brand-text {
	display: flex;
	flex-direction: column;
	line-height: 1;
}
.kd-header__brand-title {
	font-family: var(--font-fantasy-title);
	font-size: var(--font-size-lg);
	letter-spacing: 0.16em;
	text-transform: uppercase;
	color: var(--color-heading);
}
.kd-header__brand-subtitle {
	font-size: var(--font-size-xs);
	letter-spacing: 0.18em;
	text-transform: uppercase;
	color: var(--gray-400);
}
.kd-header__nav {
	margin-left: auto;
	margin-right: var(--space-4);
}
.kd-header__nav-list {
	display: flex;
	align-items: center;
	gap: var(--space-6);
}
.kd-header__nav-link {
	position: relative;
	font-size: var(--font-size-sm);
	letter-spacing: 0.11em;
	text-transform: uppercase;
	color: var(--gray-200);
	padding-block: var(--space-2);
}
.kd-header__nav-link::after {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	bottom: -6px;
	height: 2px;
	border-radius: 999px;
	background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
	transform: scaleX(0);
	transform-origin: center;
	transition: transform var(--transition-med);
}
.kd-header__nav-link:focus-visible::after,
.kd-header__nav-link:hover::after {
	transform: scaleX(1);
}
.kd-header__nav-link:hover {
	color: var(--color-heading);
}
.kd-header__cta {
	display: flex;
	align-items: center;
}
.kd-header__cta-btn {
	font-size: var(--font-size-xs);
	padding-inline: var(--space-5);
	white-space: nowrap;
}
.kd-header__toggle {
	display: none;
	position: relative;
	width: 40px;
	height: 40px;
	border-radius: 999px;
	border: 1px solid rgba(143, 216, 255, 0.7);
	background: radial-gradient(
		circle at 30% 20%,
		rgba(143, 216, 255, 0.26),
		rgba(15, 19, 30, 0.95)
	);
	align-items: center;
	justify-content: center;
	gap: 3px;
	transition:
		background var(--transition-fast),
		box-shadow var(--transition-fast),
		transform var(--transition-fast);
}
.kd-header__toggle-bar {
	width: 18px;
	height: 2px;
	border-radius: 999px;
	background: var(--gray-100);
	transition:
		transform var(--transition-fast),
		opacity var(--transition-fast),
		background var(--transition-fast);
}
.kd-header__toggle:hover {
	box-shadow: var(--shadow-glow-primary);
	transform: translateY(-1px);
}
.kd-header__toggle[aria-expanded="true"] {
	background: radial-gradient(
		circle at 30% 20%,
		rgba(224, 176, 74, 0.3),
		rgba(15, 19, 30, 0.98)
	);
	box-shadow: var(--shadow-glow-accent);
}
.kd-header__toggle[aria-expanded="true"] .kd-header__toggle-bar:nth-child(1) {
	transform: translateY(4px) rotate(45deg);
}
.kd-header__toggle[aria-expanded="true"] .kd-header__toggle-bar:nth-child(2) {
	opacity: 0;
}
.kd-header__toggle[aria-expanded="true"] .kd-header__toggle-bar:nth-child(3) {
	transform: translateY(-4px) rotate(-45deg);
}
@media (max-width: 960px) {
	.kd-header__nav {
		position: fixed;
		inset-inline: 0;
		top: 64px;
		transform: translateY(-6px);
		padding: 0 var(--space-4) var(--space-6);
		pointer-events: none;
		opacity: 0;
		transition:
			opacity var(--transition-med),
			transform var(--transition-med);
	}
	.kd-header__nav-list {
		flex-direction: column;
		align-items: flex-start;
		padding: var(--space-5);
		border-radius: var(--radius-lg);
		background:
			radial-gradient(
				circle at 0 0,
				rgba(143, 216, 255, 0.16),
				transparent 58%
			),
			radial-gradient(
				circle at 100% 100%,
				rgba(140, 91, 234, 0.26),
				transparent 60%
			),
			linear-gradient(145deg, #151927, #090d17);
		box-shadow: var(--shadow-lg);
		border: 1px solid rgba(99, 124, 163, 0.85);
	}
	.kd-header__nav-link {
		width: 100%;
		font-size: var(--font-size-md);
	}
	.kd-header__nav-link::after {
		bottom: -4px;
	}
	.kd-header__cta {
		display: none;
	}
	.kd-header__toggle {
		display: inline-flex;
        flex-direction: column;
	}
	.kd-header__nav--open {
		opacity: 1;
		transform: translateY(0);
		pointer-events: auto;
	}
	.kd-header__nav--closing {
		opacity: 0;
		transform: translateY(-6px);
		pointer-events: none;
	}
}
@media (max-width: 640px) {
	.kd-header__brand-subtitle {
		display: none;
	}
	.kd-header__brand-title {
		font-size: var(--font-size-md);
	}
	.kd-header__inner {
		padding-block: var(--space-3);
	}
}
.kd-header--menu-open {
	overflow: hidden;
}
.kd-header__nav-list:focus-within .kd-header__nav-link::after {
	transform-origin: left;
}