/* ============================================================================
 * VIKIPOS — Header sticky con backdrop blur
 * ============================================================================ */

.vk-header {
	position: sticky;
	top: 0;
	z-index: var(--z-header);
	background: rgba(10, 10, 15, 0.72);
	backdrop-filter: saturate(180%) blur(18px);
	-webkit-backdrop-filter: saturate(180%) blur(18px);
	border-bottom: 1px solid rgba(255, 255, 255, 0.05);
	color: var(--color-text);
	transition: background var(--dur-base) var(--ease);
}

.vk-header__inner {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 1rem;
	min-height: 72px;
}

.vk-header__brand {
	display: inline-flex;
	align-items: center;
	line-height: 1;
	text-decoration: none;
	color: var(--color-text);
}
.vk-header__brand .vk-logo {
	height: 28px;
	width: auto;
	display: block;
}

.vk-nav {
	display: none;
}
.vk-nav ul {
	list-style: none;
	display: flex;
	gap: 2rem;
	margin: 0;
	padding: 0;
}
.vk-nav a {
	color: var(--color-text-muted);
	text-decoration: none;
	font-size: var(--fs-sm);
	font-weight: 500;
	transition: color var(--dur-fast) var(--ease);
}
.vk-nav a:hover,
.vk-nav .current-menu-item > a {
	color: var(--color-text);
}

.vk-header__cta { display: none; }

.vk-header__toggle {
	appearance: none;
	background: transparent;
	border: 1px solid rgba(255,255,255,0.1);
	color: var(--color-text);
	width: 44px;
	height: 44px;
	border-radius: var(--radius-md);
	display: inline-flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
}
.vk-header__toggle svg { width: 20px; height: 20px; }

@media (min-width: 960px) {
	.vk-nav { display: block; }
	.vk-header__cta { display: inline-flex; }
	.vk-header__toggle { display: none; }
}

/* Menú móvil desplegable */
.vk-mobile-menu {
	display: none;
	position: fixed;
	inset: 72px 0 0 0;
	background: var(--color-bg);
	padding: 32px 24px;
	z-index: var(--z-overlay);
	overflow-y: auto;
}
.vk-mobile-menu.is-open { display: block; }
.vk-mobile-menu ul {
	list-style: none;
	margin: 0;
	padding: 0;
	display: flex;
	flex-direction: column;
	gap: 1.25rem;
}
.vk-mobile-menu a {
	font-family: var(--font-display);
	font-size: var(--fs-xl);
	font-weight: 600;
	color: var(--color-text);
	text-decoration: none;
}
.vk-mobile-menu .vk-btn {
	margin-top: 2rem;
	width: 100%;
}

body.vk-nav-open { overflow: hidden; }