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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse-glow {
  0%,
  100% {
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
  }
  50% {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.8);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease-out forwards;
}

.animate-slideInLeft {
  animation: slideInLeft 0.8s ease-out forwards;
}

.animate-slideInRight {
  animation: slideInRight 0.8s ease-out forwards;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

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

.hero-bg {
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

.text-shadow {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.glass {
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.1);
}

.hidden-element {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}

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

/* Preloader Styles */
.preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-out;
}

.plane {
  font-size: 3rem;
  color: white;
  animation: fly 2s ease-in-out infinite;
}

@keyframes fly {
  0%, 100% { transform: translateX(-20px) rotate(-5deg); }
  50% { transform: translateX(20px) rotate(5deg); }
}

.loading-text {
  color: white;
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 2rem;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.preloader.fade-out {
  opacity: 0;
  pointer-events: none;
}

/* Active Navigation Styles */
.nav-link {
  position: relative;
  transition: all 0.3s ease;
}

.nav-link.active {
  color: #60a5fa !important;
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #3b82f6, #60a5fa);
  border-radius: 1px;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}