@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
  100% { transform: translateY(0px); }
}

@keyframes gradientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(100px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate {
  opacity: 0;
  animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate--delay-1 {
  animation-delay: 0.2s;
}

.animate--delay-2 {
  animation-delay: 0.4s;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: var(--transition);
  transform: translateX(-50%);
}

.nav-item:hover::after {
  width: 100%;
}

.btn {
  position: relative;
  overflow: hidden;
  background: var(--gradient);
  transition: var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(30, 136, 229, 0.3);
}

.btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(255,255,255,0.2), transparent);
  transform: translateY(-100%);
  transition: var(--transition);
}

.btn:hover::after {
  transform: translateY(0);
}

.advantage-card:hover,
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(30, 136, 229, 0.15);
}

.testimonial-card {
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.hero-logo {
  animation: float 6s ease-in-out infinite;
}

.hero-background {
  animation: gradientFlow 15s ease infinite;
  background-size: 200% 200%;
}

.hero-content > * {
  animation: slideInFromBottom 1s ease-out forwards;
}

.hero-content > *:nth-child(1) { animation-delay: 0.2s; }
.hero-content > *:nth-child(2) { animation-delay: 0.4s; }
.hero-content > *:nth-child(3) { animation-delay: 0.6s; }
.hero-content > *:nth-child(4) { animation-delay: 0.8s; }