/* ============================================
STICKY HEADER
============================================ */
.site-header {
transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
z-index: var(--z-header);
}
body .site-header.is-scrolled {
background: rgba(255, 255, 255, 0.95);
-webkit-backdrop-filter: blur(10px);
backdrop-filter: blur(10px);
box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}
.site-header.is-hidden {
transform: translateY(-100%);
}

/* Header menu - dark text on white scrolled background */
.main-header-menu a,
.main-header-bar .main-header-menu a {
color: var(--med-text);
}
.main-header-menu a:hover,
.main-header-menu a:focus {
color: var(--med-primary);
}