/* =========================================================
   scroll-progress.css
   Thin cyan progress line pinned to the very top of the
   viewport, filling as the user scrolls the page.
   ========================================================= */

.scroll-progress-track {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    width: 100%;
    background: transparent;
    z-index: 2000; /* above header, sticky filter bar, nav */
    pointer-events: none;
}

.scroll-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--blue-color, #00b4ff), #67e8f9);
    box-shadow: 0 0 8px rgba(0, 180, 255, 0.6);
    transform-origin: left center;
    transition: width 0.12s linear;
}

@media (prefers-reduced-motion: reduce) {
    .scroll-progress-bar {
        transition: none;
    }
}