html {
    scroll-behavior: smooth;
}

.car-card {
    transition: transform 0.3s ease;
}

.car-card:hover {
    transform: scale(1.05);
}

#scroll-to-top {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* Header styles */
#main-header {
    height: 96px; /* 6rem */
}

#main-header.scrolled {
    height: 64px; /* 4rem */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#header-content {
    height: 100%;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

#main-header.scrolled #header-content {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

#logo-container {
    transform-origin: left center;
}

#main-header.scrolled #logo-container {
    transform: scale(0.8);
}