@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes scrollBounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-8px);
  }
  60% {
    transform: translateY(-4px);
  }
}

.anim-fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.anim-fade-in-down {
  animation: fadeInDown 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.anim-fade-in {
  animation: fadeIn 1s ease forwards;
}

.anim-scroll {
  animation: scrollBounce 2s infinite;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

.delay-100 {
  transition-delay: 0.1s;
  animation-delay: 0.1s;
}

.delay-200 {
  transition-delay: 0.2s;
  animation-delay: 0.2s;
}

.delay-300 {
  transition-delay: 0.3s;
  animation-delay: 0.3s;
}

.delay-400 {
  transition-delay: 0.4s;
  animation-delay: 0.4s;
}

.delay-500 {
  transition-delay: 0.5s;
  animation-delay: 0.5s;
}

@keyframes loaderSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: loaderSpin 1s linear infinite;
}