/* ============================================================
   PROTONVIX — ANIMATIONS
   All keyframes and motion rules
   ============================================================ */

/* ---- Keyframes ---- */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes pulse-node {
  0%, 100% { opacity: 0.04; }
  50%       { opacity: 0.12; }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

@keyframes float-glow {
  0% { transform: translateX(-50%) translateY(0) scale(1); opacity: 0.8; }
  100% { transform: translateX(-50%) translateY(20px) scale(1.05); opacity: 1; }
}

@keyframes textShimmer {
  to { background-position: 200% center; }
}

@keyframes twinkle {
  0%, 100% { opacity: 1; transform: scale(1) rotate(0deg); }
  50% { opacity: 0.5; transform: scale(0.8) rotate(15deg); }
}

@keyframes borderSweep {
  from { transform: scaleX(0); transform-origin: left; }
  to   { transform: scaleX(1); transform-origin: left; }
}

@keyframes countUp {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ---- Scroll Reveal (JS applies .reveal class) ---- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity  var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delays */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ---- Hero word stagger ---- */

.hero-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 0.8s var(--ease-out) forwards;
}

.hero-word:nth-child(1)  { animation-delay: 0.1s; }
.hero-word:nth-child(2)  { animation-delay: 0.25s; }
.hero-word:nth-child(3)  { animation-delay: 0.4s; }
.hero-word:nth-child(4)  { animation-delay: 0.55s; }
.hero-word:nth-child(5)  { animation-delay: 0.7s; }

/* ---- Marquee ---- */

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 30s linear infinite;
  will-change: transform;
}

.marquee-track:hover {
  animation-play-state: paused;
}

/* ---- Nav link underline ---- */

.nav-link::after {
  content: '';
  display: block;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

/* ---- Service card gold border sweep ---- */

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-base) var(--ease-out);
}

.service-card:hover::before {
  transform: scaleX(1);
}

/* ---- Gold button hover ---- */

.btn-gold {
  transition:
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    background var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

/* ---- Outline gold button ---- */
.btn-outline {
  transition:
    transform var(--duration-fast) var(--ease-out),
    background var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.btn-outline:hover {
  transform: translateY(-2px);
}

/* ---- Reduced motion — disable all ---- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-word {
    opacity: 1;
    transform: none;
    animation: none;
  }

  .marquee-track {
    animation: none;
  }
}