/* Keyframes */

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

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

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

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

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

@keyframes floatReverse {
  0% { transform: translateY(0px); }
  50% { transform: translateY(15px); }
  100% { transform: translateY(0px); }
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(0, 229, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 229, 255, 0); }
}

@keyframes drawLine {
  to { stroke-dashoffset: 0; }
}

/* Animation Classes */
.animate-fade-in {
  animation: fadeIn 0.8s ease forwards;
}

.animate-fade-up {
  opacity: 0;
  animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-fade-left {
  opacity: 0;
  animation: fadeInLeft 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.animate-fade-right {
  opacity: 0;
  animation: fadeInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }

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

.floating-reverse {
  animation: floatReverse 7s ease-in-out infinite;
}

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

/* Intersection Observer utility class */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* Card Hover Effects */
.hover-card {
  transition: all var(--transition-normal);
}

.hover-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(0, 229, 255, 0.3);
}

.hover-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), rgba(255, 255, 255, 0.06), transparent 40%);
  z-index: 0;
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}

.hover-card:hover::before {
  opacity: 1;
}

/* Icon Animations */
.icon-box {
  transition: transform var(--transition-normal);
}

.hover-card:hover .icon-box {
  transform: scale(1.1);
  color: var(--color-accent);
}