/* Header styles for 'RAN-BUD' Marcin Rańcia */

.kdh-header {
	position: sticky;
	top: 0;
	z-index: 40;
	backdrop-filter: blur(16px);
	background: linear-gradient(
		135deg,
		rgba(227, 241, 255, 0.96),
		rgba(255, 247, 224, 0.96)
	);
	box-shadow: var(--shadow-xs);
}

.kdh-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-top: var(--space-8);
	padding-bottom: var(--space-8);
	gap: var(--space-8);
}

.kdh-header__brand {
	display: flex;
	align-items: center;
}

.kdh-header__logo-link {
	display: inline-flex;
	align-items: center;
	gap: var(--space-6);
	border-radius: var(--radius-pill);
	padding: var(--space-4) var(--space-6);
}

.kdh-header__logo-mark {
	position: relative;
	width: 40px;
	height: 40px;
	border-radius: 40% 60% 55% 45%;
	background: radial-gradient(
		circle at 30% 20%,
		#ffffff 0,
		#ffe082 40%,
		#ff9a9e 100%
	);
	box-shadow: var(--shadow-sm);
}

.kdh-header__logo-sparkle {
	position: absolute;
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: #ffffff;
	box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.5);
}

.kdh-header__logo-sparkle--one {
	top: 4px;
	right: -4px;
}

.kdh-header__logo-sparkle--two {
	bottom: -2px;
	left: 6px;
	transform: scale(0.7);
}

.kdh-header__brand-text {
	display: flex;
	flex-direction: column;
}

.kdh-header__brand-name {
	font-family: var(--font-display);
	font-weight: 700;
	font-size: var(--font-size-lg);
	letter-spacing: 0.03em;
	text-transform: uppercase;
	color: var(--color-text);
}

.kdh-header__brand-tagline {
	font-size: var(--font-size-xs);
	color: var(--color-text-soft);
}

/* Navigation */

.kdh-header__nav {
	display: flex;
	align-items: center;
}

.kdh-header__nav-list {
	display: flex;
	align-items: center;
	gap: var(--space-4);
}

.kdh-header__nav-link {
	white-space: nowrap;
}

.kdh-header__nav-link--cta {
	background: linear-gradient(
		135deg,
		var(--color-accent-yellow),
		var(--color-accent-coral)
	);
	color: #1f2933;
}

.kdh-header__nav-link--cta:hover {
	color: #111827;
}

/* Mobile toggle */

.kdh-header__toggle {
	display: none;
	align-items: center;
	gap: var(--space-4);
	border-radius: var(--radius-pill);
	padding: var(--space-4) var(--space-6);
	background: rgba(255, 255, 255, 0.9);
	box-shadow: var(--shadow-xs);
	cursor: pointer;
}

.kdh-header__toggle-text {
	font-size: var(--font-size-xs);
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--color-text);
}

.kdh-header__toggle-box {
	width: 24px;
	height: 18px;
	position: relative;
}

.kdh-header__toggle-line {
	position: absolute;
	left: 0;
	right: 0;
	height: 2px;
	border-radius: 999px;
	background: var(--color-text);
	transition:
		transform var(--transition-base),
		opacity var(--transition-base),
		top var(--transition-base),
		bottom var(--transition-base);
}

.kdh-header__toggle-line--top {
	top: 0;
}

.kdh-header__toggle-line--middle {
	top: 8px;
}

.kdh-header__toggle-line--bottom {
	bottom: 0;
}

/* Overlay for mobile nav */

.kdh-header__overlay {
	position: fixed;
	inset: 0;
	background: rgba(15, 23, 42, 0.45);
	opacity: 0;
	visibility: hidden;
	transition:
		opacity var(--transition-base),
		visibility var(--transition-base);
	z-index: 30;
}

/* Mobile layout */

@media (max-width: 768px) {
	.kdh-header__toggle {
		display: inline-flex;
	}

	.kdh-header__nav {
		position: fixed;
		display: none;
		inset: 0 0 auto auto;
		top: 0;
		right: 0;
		width: min(80%, 320px);
		height: 100vh;
		background: linear-gradient(180deg, #ffffff, #e3f1ff 30%, #fff7e0 100%);
		box-shadow: var(--shadow-lg);
		transform: translateX(100%);
		transition: transform var(--transition-base);
		z-index: 40;
	}

	.kdh-header__nav-list {
		flex-direction: column;
		align-items: flex-start;
		padding: var(--space-24) var(--space-16);
		gap: var(--space-6);
	}

	.kdh-header__nav-link {
		width: 100%;
	}

	.kdh-header__nav-link.nav-pill {
		width: 100%;
		justify-content: flex-start;
	}

	.kdh-header--menu-open .kdh-header__nav {
		transform: translateY(0);
		opacity: 1;
		visibility: visible;
	}

	.kdh-header--menu-open .kdh-header__overlay {
		opacity: 1;
		visibility: visible;
	}

	.kdh-header--menu-open .kdh-header__toggle-line--top {
		top: 8px;
		transform: rotate(45deg);
	}

	.kdh-header--menu-open .kdh-header__toggle-line--middle {
		opacity: 0;
	}

	.kdh-header--menu-open .kdh-header__toggle-line--bottom {
		bottom: 8px;
		transform: rotate(-45deg);
	}
}

/* Medium / desktop tweaks */

@media (min-width: 769px) {
	.kdh-header__overlay {
		display: none;
	}
}

/* Utility */

.kdh-header__toggle:focus-visible,
.kdh-header__logo-link:focus-visible,
.kdh-header__nav-link:focus-visible {
	outline: none;
	box-shadow: 0 0 0 3px rgba(180, 128, 255, 0.55);
}