/* Yuversity FX · Scroll Choreography — Kivo Marketing
   Palette #060E0A / #2A9D8F / #C9A96E */

:root { --fx-ease: cubic-bezier(0.22, 0.61, 0.36, 1); --fx-dur: 900ms; }

.scroll-progress {
  position: fixed; inset: 0 0 auto 0; height: 2px;
  z-index: 9999; background: transparent; pointer-events: none;
}
.scroll-progress::after {
  content: ""; display: block; height: 100%;
  width: calc(var(--sp, 0) * 100%);
  background: linear-gradient(90deg, #2A9D8F 0%, #C9A96E 100%);
  transition: width 60ms linear;
}

.parallax, .parallax--slow, .parallax--fast {
  will-change: transform;
  transform: translate3d(0, var(--py, 0px), 0);
  transition: transform 80ms linear;
}
.parallax--slow { --speed: 0.3; }
.parallax--fast { --speed: 0.7; }

.mask-reveal { position: relative; display: inline-block; overflow: hidden; }
.mask-reveal::before {
  content: ""; position: absolute; inset: 0; background: #060E0A;
  clip-path: inset(0 0 0 calc(var(--p, 0) * 100%));
  transition: clip-path 120ms var(--fx-ease);
  pointer-events: none;
}

.pin-title {
  position: sticky; top: 12vh; z-index: 2;
  transform: scale(calc(1 + var(--p, 0) * 0.05));
  transform-origin: center; will-change: transform;
}

.ticker-3d {
  position: relative; overflow: hidden; width: 100%; perspective: 900px;
  mask-image: linear-gradient(90deg, transparent 0, #000 12%, #000 88%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 12%, #000 88%, transparent 100%);
}
.ticker-3d__track {
  display: inline-flex; gap: 3rem; white-space: nowrap; padding: 1rem 0;
  animation: fx-ticker 40s linear infinite; transform-style: preserve-3d;
}
.ticker-3d__track > * {
  display: inline-block; transform: rotateY(-4deg);
  font-family: "Bebas Neue", sans-serif; letter-spacing: 0.12em;
  font-size: clamp(1.4rem, 3vw, 2.4rem); color: #C9A96E; opacity: 0.85;
}
.ticker-3d__track > *:nth-child(even) { transform: rotateY(4deg); color: #2A9D8F; }
@keyframes fx-ticker { from { transform: translate3d(0,0,0); } to { transform: translate3d(-50%,0,0); } }

.reveal-up, .reveal-left, .reveal-right, .reveal-scale {
  opacity: 0; will-change: transform, opacity;
  transition: opacity var(--fx-dur) var(--fx-ease), transform var(--fx-dur) var(--fx-ease);
}
.reveal-up    { transform: translate3d(0, 48px, 0); }
.reveal-left  { transform: translate3d(-64px, 0, 0); }
.reveal-right { transform: translate3d(64px, 0, 0); }
.reveal-scale { transform: scale(0.92); }
.reveal-up.in, .reveal-left.in, .reveal-right.in, .reveal-scale.in {
  opacity: 1; transform: none;
}

.zoom-scroll { overflow: hidden; }
.zoom-scroll img {
  display: block; width: 100%; height: 100%; object-fit: cover;
  transform: scale(calc(1 + var(--p, 0) * 0.15));
  transition: transform 160ms linear; will-change: transform;
}

.gradient-shift {
  background: linear-gradient(90deg, #C9A96E 0%, #2A9D8F 50%, #C9A96E 100%);
  background-size: 220% 100%;
  background-position: calc(var(--sp, 0) * -120%) 0;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

@media (prefers-reduced-motion: reduce) {
  .parallax, .parallax--slow, .parallax--fast,
  .pin-title, .zoom-scroll img { transform: none !important; }
  .mask-reveal::before { clip-path: inset(0 0 0 100%); }
  .ticker-3d__track { animation: none; }
  .reveal-up, .reveal-left, .reveal-right, .reveal-scale {
    transform: none; transition: opacity 400ms ease;
  }
}