/* ==========================================================================
   Todo Baldai – Header stiliai
   ========================================================================== */

.tb-header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 1000;
	height: var(--header-height);
	background: var(--color-white);
	border-bottom: 1px solid var(--color-border);
	transition: background var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
	will-change: background;
}

.tb-header.tb-header--scrolled {
	box-shadow: var(--shadow-md);
}

/* ===== Permatomas header (virš hero) ===== */
.tb-header--transparent {
	background: transparent;
	border-bottom-color: transparent;
}

.tb-header--transparent .tb-logo--scroll { display: none; }
.tb-header--transparent .tb-logo--hero   { display: block; }
.tb-header--transparent .tb-nav__list > li > a { color: rgba(255, 255, 255, 0.9); }
.tb-header--transparent .tb-nav__list > li > a:hover { color: var(--color-white); }
.tb-header--transparent .tb-header__phone { color: rgba(255, 255, 255, 0.85); }
.tb-header--transparent .tb-header__phone:hover { color: var(--color-white); }
.tb-header--transparent .tb-hamburger__bar { background: var(--color-white); }

/* ===== Baltas header (po slinkimo) ===== */
.tb-header--scrolled,
.tb-header:not(.tb-header--transparent) {
	background: var(--color-white);
}

.tb-header--transparent.tb-header--scrolled .tb-nav__list > li > a { color: var(--color-text); }
.tb-header--transparent.tb-header--scrolled .tb-nav__list > li > a:hover { color: var(--color-primary); }
.tb-header--transparent.tb-header--scrolled .tb-header__phone { color: var(--color-text); }
.tb-header--transparent.tb-header--scrolled .tb-header__phone:hover { color: var(--color-primary); }

.tb-header--scrolled .tb-logo--hero,
.tb-header:not(.tb-header--transparent) .tb-logo--hero { display: none; }

.tb-header--scrolled .tb-logo--scroll,
.tb-header:not(.tb-header--transparent) .tb-logo--scroll { display: block; }

/* ===== Vidinė struktūra ===== */
.tb-header__inner {
	height: 100%;
	display: flex;
	align-items: center;
	gap: var(--spacing-md);
}

/* ===== Logotipas ===== */
.tb-header__logo {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	text-decoration: none;
}

.tb-logo {
	height: 44px;
	width: auto;
	object-fit: contain;
}

.tb-logo-text {
	font-family: var(--font-heading);
	font-size: 1.5rem;
	font-weight: 700;
	letter-spacing: -0.02em;
	color: var(--color-secondary);
	text-decoration: none;
}

.tb-logo-text--light {
	color: var(--color-white);
}

/* ===== Navigacija ===== */
.tb-header__nav {
	flex: 1;
	display: flex;
	justify-content: center;
}

.tb-nav__list {
	display: flex;
	align-items: center;
	gap: 4px;
}

.tb-nav__list li {
	position: relative;
}

.tb-nav__list > li > a {
	display: block;
	padding: 8px 14px;
	font-size: 0.9rem;
	font-weight: 500;
	color: var(--color-text);
	border-radius: var(--radius-sm);
	text-decoration: none;
	transition: all var(--transition-fast);
	letter-spacing: 0.01em;
}

.tb-nav__list > li > a:hover,
.tb-nav__list > li.current-menu-item > a,
.tb-nav__list > li.current_page_item > a {
	color: var(--color-primary);
	background: var(--color-primary-light);
}

/* ===== Actions (telefono, CTA) ===== */
.tb-header__actions {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	gap: var(--spacing-sm);
}

.tb-header__phone {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 0.875rem;
	font-weight: 500;
	color: var(--color-text);
	text-decoration: none;
	transition: color var(--transition-fast);
}

.tb-header__phone:hover {
	color: var(--color-primary);
}

/* ===== CTA mygtukas ===== */
.tb-header__cta {
	padding: 9px 20px;
	font-size: 0.875rem;
}

/* ===== Hamburger ===== */
.tb-hamburger {
	display: none;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 40px;
	height: 40px;
	padding: 6px;
	border-radius: var(--radius-sm);
	border: none;
	background: none;
	cursor: pointer;
	transition: background var(--transition-fast);
}

.tb-hamburger:hover {
	background: var(--color-bg-alt);
}

.tb-hamburger__bar {
	display: block;
	height: 2px;
	width: 100%;
	background: var(--color-secondary);
	border-radius: 2px;
	transition: all var(--transition-base);
	transform-origin: center;
}

.tb-hamburger.is-open .tb-hamburger__bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.tb-hamburger.is-open .tb-hamburger__bar:nth-child(2) {
	opacity: 0;
	transform: scaleX(0);
}

.tb-hamburger.is-open .tb-hamburger__bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

/* ===== Mobilus overlay ===== */
.tb-mobile-overlay {
	display: none;
	position: fixed;
	inset: 0;
	background: rgba(0, 0, 0, 0.5);
	z-index: 999;
	opacity: 0;
	transition: opacity var(--transition-base);
}

.tb-mobile-overlay.is-visible {
	opacity: 1;
}

/* ===== Mobilusis meniu ===== */
@media (max-width: 900px) {
	.tb-hamburger {
		display: flex;
	}

	.tb-header__phone {
		display: none;
	}

	.tb-header__cta {
		display: none;
	}

	.tb-header__nav {
		position: fixed;
		top: 0;
		right: -300px;
		bottom: 0;
		width: 280px;
		background: var(--color-white);
		z-index: 1001;
		padding: calc(var(--header-height) + 20px) 24px 32px;
		overflow-y: auto;
		transition: right var(--transition-slow);
		box-shadow: var(--shadow-xl);
		display: flex;
		flex-direction: column;
	}

	.tb-header__nav.is-open {
		right: 0;
	}

	.tb-nav__list {
		flex-direction: column;
		align-items: stretch;
		gap: 4px;
	}

	.tb-nav__list > li > a {
		display: block;
		padding: 14px 16px;
		font-size: 1rem;
		border-radius: var(--radius-md);
	}

	.tb-mobile-overlay {
		display: block;
	}

	.tb-mobile-overlay.is-visible {
		pointer-events: auto;
	}

	/* Mobilaus meniu hamburger bars – visada tamsios */
	.tb-header--transparent .tb-hamburger__bar {
		background: var(--color-white);
	}

	.tb-header--transparent.tb-header--scrolled .tb-hamburger__bar,
	.tb-header--scrolled .tb-hamburger__bar {
		background: var(--color-secondary);
	}
}