/* =========================================================================
   Header
   ========================================================================= */
.header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: rgba(255, 255, 255, 0.82);
	backdrop-filter: saturate(1.4) blur(14px);
	-webkit-backdrop-filter: saturate(1.4) blur(14px);
	border-bottom: 1px solid transparent;
	transition:
		border-color 0.2s,
		box-shadow 0.2s;
}
.header.is-stuck {
	border-bottom-color: var(--border);
	box-shadow: var(--shadow-sm);
}
.header__inner {
	display: flex;
	align-items: center;
	gap: 20px;
	height: 70px;
}

.brand {
	display: flex;
	align-items: center;
	gap: 10px;
	font-weight: 700;
	color: var(--ink);
	font-size: 18px;
	letter-spacing: -0.01em;
}
.brand__logo {
	height: 30px;
	width: auto;
	display: block;
}
.brand__mark {
	width: 32px;
	height: 32px;
	border-radius: 9px;
	background: var(--blue);
	display: grid;
	place-items: center;
	color: #fff;
	font-weight: 800;
	font-size: 15px;
	letter-spacing: -0.03em;
	box-shadow: 0 4px 10px -3px rgba(2, 89, 255, 0.5);
}
.header__logo {
	flex-shrink: 0;
	display: block;
	line-height: 0;
}
.header__logo img {
	display: block;
	height: 32px;
	width: auto;
}

.nav {
	display: flex;
	align-items: center;
	gap: clamp(4px, 1vw, 10px);
	flex: 1;
	justify-content: center;
}
.nav a {
	padding: 8px 16px;
	font-size: 14px;
	font-weight: 500;
	color: #4a5578;
	transition: color 0.15s;
	white-space: nowrap;
}
.nav a:hover {
	color: var(--blue);
}

.header__actions {
	display: flex;
	align-items: center;
	gap: 16px;
	flex-shrink: 0;
}

/* Burger */
.burger {
	display: none;
	width: 42px;
	height: 42px;
	border-radius: var(--r-sm);
	border: 1px solid var(--border);
	background: #fff;
}
.burger span {
	display: block;
	width: 18px;
	height: 2px;
	background: var(--ink);
	margin: 3px auto;
	border-radius: 2px;
	transition:
		transform 0.25s var(--ease),
		opacity 0.2s;
}
.mobile-nav-open .burger span:nth-child(1) {
	transform: translateY(5px) rotate(45deg);
}
.mobile-nav-open .burger span:nth-child(2) {
	opacity: 0;
}
.mobile-nav-open .burger span:nth-child(3) {
	transform: translateY(-5px) rotate(-45deg);
}

/* Mobile drawer */
.mobile-nav {
	position: fixed;
	inset: 68px 0 auto 0;
	z-index: 99;
	background: #fff;
	border-bottom: 1px solid var(--border);
	box-shadow: var(--shadow-lg);
	padding: 16px var(--gutter) 24px;
	transform: translateY(-120%);
	transition: transform 0.32s var(--ease);
	visibility: hidden;
}
.mobile-nav-open .mobile-nav {
	transform: translateY(0);
	visibility: visible;
}
.mobile-nav a {
	display: block;
	padding: 13px 4px;
	font-size: 16px;
	font-weight: 500;
	color: var(--ink-2);
	border-bottom: 1px solid var(--border-soft);
}
.mobile-nav .btn {
	width: 100%;
	margin-top: 14px;
	padding-block: 18px;
	font-size: 16px;
}
.mobile-nav__row {
	display: flex;
	gap: 10px;
	margin-top: 8px;
}
.mobile-nav__row .btn {
	margin-top: 0;
}

@media (max-width: 1180px) {
	.header__actions .btn--ghost {
		display: none;
	}
}
@media (max-width: 1040px) {
	.nav {
		display: none;
	}
	.header__actions .btn--primary {
		display: none;
	}
	.header__actions {
		margin-left: auto;
	}
	.burger {
		display: block;
	}
}