/* ==========================================
   ZERO-G — ANIMATION SYSTEM
   ========================================== */

/* --- Fade In --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Slide Up --- */
.slide-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s var(--ease-smooth), transform 0.7s var(--ease-smooth);
}

.slide-up.visible {
  opacity: 1;
  transform: translateY(0);
}

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

.delay-1 { transition-delay: 0.15s; }
.delay-2 { transition-delay: 0.3s; }
.delay-3 { transition-delay: 0.45s; }
.delay-4 { transition-delay: 0.6s; }

/* --- Particle Float Animation --- */
@keyframes particleFloat {
  0% {
    transform: translateY(100vh) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) translateX(50px);
    opacity: 0;
  }
}

.particle {
  animation: particleFloat linear infinite;
}

/* --- Shimmer Hover --- */
@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255,255,255,0.03) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.glass-card {
  position: relative;
  overflow: hidden;
}

.glass-card:hover::before {
  opacity: 1;
  animation: shimmer 1.5s ease-in-out;
}

/* --- Countdown Tick --- */
@keyframes countTick {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.countdown-number {
  animation: countTick 1s ease-in-out infinite;
}

/* --- Nav Glow Border --- */
@keyframes navGlow {
  0%, 100% {
    border-bottom-color: rgba(0, 191, 255, 0.15);
  }
  50% {
    border-bottom-color: rgba(0, 191, 255, 0.35);
  }
}

.glass-nav.scrolled {
  animation: navGlow 3s ease-in-out infinite;
}

/* --- Scale on Hover for Images --- */
.hero-image-wrapper:hover .hero-image {
  transform: scale(1.02);
}

.hero-image {
  transition: transform 0.6s var(--ease-smooth);
}