/* Dragon Rehab — Shared page effects
   Motion/interaction utilities driven by js/site-fx.js: a scroll-progress
   keyline, scroll-triggered reveals, and a pointer-tracked card glow.
   Include after components.css on any page that loads site-fx.js. */

/* ─── Scroll progress keyline ───────────────────────────────── */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 110;
  pointer-events: none;
}

.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, #e8506b 70%, var(--color-accent) 100%);
  transform: scaleX(0);
  transform-origin: left;
}

/* ─── Scroll reveal ──────────────────────────────────────────── */

/* Transform-only, deliberately never opacity: an element mid-transition
   (or never yet observed, e.g. below the fold when a page is scanned
   programmatically) must still read as fully-contrast, present content —
   not a near-invisible false positive for contrast checkers. */
@media (prefers-reduced-motion: no-preference) {
  html.js-anim .fx-reveal {
    transform: translateY(16px);
    transition: transform 0.55s var(--ease-out) var(--d, 0ms);
  }

  html.js-anim .fx-reveal.in {
    transform: none;
  }
}

/* ─── Pointer-tracked card glow ─────────────────────────────── */

@media (hover: hover) {
  .fx-spotlight {
    position: relative;
    overflow: hidden;
  }

  .fx-spotlight::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), rgba(200, 16, 46, 0.13), transparent 65%);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
    pointer-events: none;
  }

  .fx-spotlight:hover::before {
    opacity: 1;
  }

  .fx-spotlight > * {
    position: relative;
  }
}

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