/* Animation Base Styles */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
  will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* Hover Effects */
.hover-scale {
  transition: transform 0.3s ease;
}
.hover-scale:hover {
  transform: scale(1.05);
}

.hover-lift {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.hover-lift:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* Navbar Scroll Effect */
.site-header {
  transition: background-color 0.3s ease, padding 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(5px);
  box-shadow: 0 2px 15px rgba(0,0,0,0.1);
  padding-top: 0;
  padding-bottom: 0;
}

/* Specific Section Animations */
.welcome-left, .welcome-right {
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.8s ease;
}
.welcome-left.is-visible, .welcome-right.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.stat {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.stat.is-visible {
  opacity: 1;
  transform: scale(1);
}