/**
 * scroll-indicator.css — Novagroup Scroll Progress Indicator
 * Top-of-page copper progress bar. Width updated by js/nav.js.
 * Also includes scroll-to section indicator for Services sidebar.
 * ALL values reference tokens from css/tokens.css.
 */

/* ============================================================
 * TOP PROGRESS BAR (already wired in nav.css as .scroll-progress)
 * This file extends it with additional styles.
 * ============================================================ */
.scroll-progress {
  background: linear-gradient(
    to right,
    var(--c-copper),
    var(--c-copper-bright)
  );
  box-shadow: 0 0 8px rgb(184 115 51 / 0.4);
}

/* ============================================================
 * SECTION SIDEBAR INDICATOR (Services sticky sidebar)
 * ============================================================ */
.section-nav {
  position: sticky;
  top: 100px;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.section-nav__link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--c-steel);
  text-decoration: none;
  padding: var(--sp-2) 0;
  transition: color var(--dur-micro) var(--ease-out);
  position: relative;
}

.section-nav__link::after {
  display: none; /* override base.css underline draw */
}

.section-nav__link::before {
  content: '';
  width: 16px;
  height: 1px;
  background-color: var(--c-fog);
  flex-shrink: 0;
  transition:
    width            var(--dur-short) var(--ease-out),
    background-color var(--dur-short) var(--ease-out);
}

.section-nav__link:hover,
.section-nav__link.is-active {
  color: var(--c-copper);
}

.section-nav__link:hover::before,
.section-nav__link.is-active::before {
  width: 28px;
  background-color: var(--c-copper);
}

/* ============================================================
 * SCROLL TO TOP BUTTON
 * ============================================================ */
.scroll-top {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--c-navy);
  color: var(--c-white);
  border: 1px solid var(--c-copper);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity    var(--dur-short) var(--ease-out),
    transform  var(--dur-short) var(--ease-out),
    background-color var(--dur-micro) var(--ease-out);
  z-index: var(--z-raised);
  pointer-events: none;
}

.scroll-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top:hover {
  background-color: var(--c-copper);
  color: var(--c-navy);
}

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