/* ================================================
   STICKY HEADER ON SCROLL
   ================================================ */

.site-header {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    padding: 8px 0;
}

.site-header.scrolled .logo-img {
    height: 45px;
    transition: height 0.3s ease;
}

.site-header.scrolled .site-name {
    font-size: 1.2rem;
    transition: font-size 0.3s ease;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .site-header.scrolled {
        padding: 6px 0;
    }

    .site-header.scrolled .logo-img {
        height: 40px;
    }

    .site-header.scrolled .site-name {
        font-size: 0.95rem;
    }
}

/* Smooth scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Hide header on scroll down, show on scroll up */
.site-header.hide-on-scroll {
    transform: translateY(-100%);
}

.site-header.show-on-scroll {
    transform: translateY(0);
}