/* Enhanced animations and transitions */

/* Scroll reveal animation */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Smooth page transitions */
.page-transition {
  animation: fadeIn 0.4s ease-in-out;
}

/* Stat counter animation */
@keyframes countUp {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.stat-card {
  animation: slideInUp 0.5s ease-out forwards;
  opacity: 0;
}

.stat-card:nth-child(1) { animation-delay: 0.1s; }
.stat-card:nth-child(2) { animation-delay: 0.15s; }
.stat-card:nth-child(3) { animation-delay: 0.2s; }
.stat-card:nth-child(4) { animation-delay: 0.25s; }

/* Smooth number counting (for when stats load) */
.stat-number {
  transition: all 0.3s ease-out;
}

/* Button ripple effect */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
}

/* Focus visible for accessibility */
*:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Link hover underline animation */
a {
  position: relative;
  transition: color 0.2s ease;
}

/* Card stagger animation */
.card {
  animation: slideInUp 0.6s ease-out backwards;
}

.section .card:nth-child(1) { animation-delay: 0s; }
.section .card:nth-child(2) { animation-delay: 0.1s; }
.section .card:nth-child(3) { animation-delay: 0.2s; }
.section .card:nth-child(4) { animation-delay: 0.3s; }

/* Scroll-to-top button animation */
.scroll-to-top {
  position: fixed;
  bottom: 32px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: var(--accent-primary);
  color: #000000;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
  z-index: 50;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(27, 217, 111, 0.3);
}

.scroll-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.scroll-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(27, 217, 111, 0.5);
}

.scroll-to-top:active {
  transform: translateY(-2px);
}

/* Skeleton loading animation */
.skeleton {
  background: linear-gradient(90deg, var(--bg-secondary) 25%, rgba(255,255,255,0.1) 50%, var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Text focus styles */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

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