:root {
    --scroll-progress-gradient: linear-gradient(90deg, #38bdf8 0%, #3b82f6 55%, #2563eb 100%);
    --scrollbar-track: #e7edf5;
    --scrollbar-thumb: #93a7c6;
    --scrollbar-thumb-hover: #7f95b7;
    --scrollbar-size: 6px;
}

/* Lenis base compatibility */
html.lenis,
html.lenis body {
    height: auto;
    overscroll-behavior: none;
}

.lenis.lenis-smooth {
    scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

/* Thin custom scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

*::-webkit-scrollbar {
    width: var(--scrollbar-size);
    height: var(--scrollbar-size);
}

*::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 999px;
    border: 1px solid var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Top scroll progress bar */
.lenis-scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    transform-origin: left center;
    transform: scaleX(0);
    background: var(--scroll-progress-gradient);
    box-shadow: 0 1px 8px rgba(37, 99, 235, 0.35);
    z-index: 5000;
    pointer-events: none;
    will-change: transform;
    contain: layout style paint;
}

/* Fade-in + parallax performance hints */
.scroll-fade-element {
    will-change: transform, opacity;
    backface-visibility: hidden;
}

.parallax-image {
    will-change: transform;
    transform: translateZ(0);
    backface-visibility: hidden;
}

@media (prefers-reduced-motion: reduce) {
    .scroll-fade-element,
    .parallax-image {
        transform: none !important;
        opacity: 1 !important;
        transition: none !important;
        animation: none !important;
    }
}