.header-container {
    position: sticky;
    top: 0;
    z-index: 50;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: white;
}

.header-container.scrolled {
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.05), 0 1px 3px 0 rgba(0, 0, 0, 0.03);
}

.logo-container {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    transform-origin: right center;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

.search-container {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
    backface-visibility: hidden;
}

/* Default state (large) */
.header-large {
    padding: 2rem 1rem;
}

.header-large .logo-container {
    transform: scale(1);
}

.header-large .search-container {
    max-width: 48rem;
    margin: 2.5rem auto 0;
}

/* Scrolled state (small) */
.header-scrolled {
    padding: 0.5rem 1rem;
}

.header-scrolled .logo-container {
    transform: scale(0.7);
}

.header-scrolled .search-container {
    max-width: 24rem;
    margin: 0;
}

.header-scrolled .search-container input {
    font-size: 0.875rem; /* 14px */
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.header-scrolled .search-container button {
    font-size: 0.875rem;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

/* Flex layout for scrolled state */
.header-scrolled .header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 80rem;
    margin: 0 auto;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .header-scrolled .logo-container {
        transform: scale(0.6);
    }
    
    .header-scrolled .search-container {
        max-width: 16rem;
    }
}