/* Scroll Animation Styles */

/* Base fade-in animation classes */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in.out {
  opacity: 0;
  transform: translateY(30px);
}

/* Different animation directions */
.fade-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-left.out {
  opacity: 0;
  transform: translateX(-50px);
}

.fade-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-right.out {
  opacity: 0;
  transform: translateX(50px);
}

.fade-in-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-up.out {
  opacity: 0;
  transform: translateY(50px);
}

.fade-in-down {
  opacity: 0;
  transform: translateY(-50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-down.out {
  opacity: 0;
  transform: translateY(-50px);
}

/* Scale animation */
.fade-in-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-scale.out {
  opacity: 0;
  transform: scale(0.8);
}

/* Staggered animations for multiple elements */
.fade-in-stagger-1 { transition-delay: 0.1s; }
.fade-in-stagger-2 { transition-delay: 0.2s; }
.fade-in-stagger-3 { transition-delay: 0.3s; }
.fade-in-stagger-4 { transition-delay: 0.4s; }
.fade-in-stagger-5 { transition-delay: 0.5s; }

/* Performance optimizations */
.fade-in,
.fade-in-left,
.fade-in-right,
.fade-in-up,
.fade-in-down,
.fade-in-scale {
  will-change: opacity, transform;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .fade-in,
  .fade-in-left,
  .fade-in-right,
  .fade-in-up,
  .fade-in-down {
    transform: translateY(20px);
  }
  
  .fade-in-left.visible,
  .fade-in-right.visible,
  .fade-in-up.visible,
  .fade-in-down.visible {
    transform: translateY(0);
  }
}