.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }

.slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .slide-left,
  .slide-right,
  .scale-in {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

.service-card {
  transition: border-color 0.2s ease, transform 0.3s ease, box-shadow 0.3s ease, border-color 0.2s;
}

.service-card:hover {
  transform: translateY(-4px);
}

.btn-primary,
.btn-secondary {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s, background 0.2s;
}

.btn-primary:active,
.btn-secondary:active {
  transform: scale(0.98);
}

.nav-cta {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.client-card {
  transition: border-color 0.2s, transform 0.2s;
}

.footer-social a {
  transition: background 0.2s, color 0.2s;
}

.pstep {
  transition: border-color 0.2s, background 0.2s;
}

.pstep-num {
  transition: background 0.2s, color 0.2s;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--black);
}

::-webkit-scrollbar-thumb {
  background: var(--gray);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--yellow);
}

html {
  scroll-behavior: smooth;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(250, 250, 51, 0.4);
  }
  50% {
    box-shadow: 0 0 20px 10px rgba(250, 250, 51, 0);
  }
}

.glow-pulse {
  animation: pulse-glow 2s ease-in-out infinite;
}