/* ==========================================================================
   Header block
   ========================================================================== */

.header {
	position: sticky;
	top: 0;
	z-index: var(--z-header);
	background: var(--color-bg-primary);
	border-bottom: 1px solid var(--color-cool-accent);
}

.header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	padding-block: 0.85rem;
}

.header__logo img {
	height: 2.5rem;
	width: auto;
}

.header__nav {
	display: none;
}

.header__nav-list {
	display: flex;
	align-items: center;
	gap: 1.75rem;
}

.header__nav-link {
	font-weight: var(--fw-medium);
	font-size: 0.95rem;
	color: var(--color-text-main);
	padding-block: 0.5rem;
	transition: color var(--transition-fast);
	position: relative;
}

.header__nav-link:hover,
.header__nav-link--active {
	color: var(--color-heading-accent);
}

.header__nav-link--active::after {
	content: '';
	position: absolute;
	left: 0;
	right: 0;
	bottom: 0;
	height: 2px;
	background: var(--color-heading-accent);
}

.header__actions {
	display: flex;
	align-items: center;
	gap: 0.6rem;
}

.header__flag {
	font-size: 1.35rem;
	line-height: 1;
	display: none;
}

.header__login,
.header__register {
	display: none;
	padding: 0.65rem 1.1rem;
	font-size: 0.85rem;
}

.header__burger {
	display: flex;
	flex-direction: column;
	justify-content: center;
	gap: 5px;
	width: 2.5rem;
	height: 2.5rem;
	padding: 0.5rem;
}

.header__burger-line {
	display: block;
	height: 2px;
	width: 100%;
	background: var(--color-white);
	transition: transform var(--transition-base), opacity var(--transition-base);
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(2) {
	opacity: 0;
}

.header__burger[aria-expanded="true"] .header__burger-line:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

.header__mobile {
	display: none;
	flex-direction: column;
	background: var(--color-bg-dark);
	border-top: 1px solid var(--color-cool-accent);
	padding: 1.25rem var(--container-pad) 1.75rem;
}

.header__mobile.is-open {
	display: flex;
}

.header__mobile-list {
	display: flex;
	flex-direction: column;
	gap: 0.25rem;
	margin-bottom: 1.25rem;
}

.header__mobile-link {
	display: block;
	padding: 0.85rem 0.25rem;
	font-weight: var(--fw-medium);
	color: var(--color-text-main);
	border-bottom: 1px solid var(--color-cool-accent);
}

.header__mobile-link--active,
.header__mobile-link:hover {
	color: var(--color-heading-accent);
}

.header__mobile-actions {
	display: flex;
	gap: 0.75rem;
}

.header__mobile-actions .btn {
	flex: 1;
}

@media (min-width: 48rem) {
	.header__flag {
		display: inline-block;
	}

	.header__login,
	.header__register {
		display: inline-flex;
	}
}

@media (min-width: 64rem) {
	.header__nav {
		display: block;
	}

	.header__burger {
		display: none;
	}

	.header .header__mobile,
	.header .header__mobile.is-open {
		display: none;
	}
}