html {
  scroll-behavior: smooth;
}

/* Fade animations */
.fade-in {
  animation: fadeIn 1.2s ease-in;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Float animation for icons */
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}
.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Gradient animation for heading */
@keyframes gradient-x {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}
.animate-gradient-x {
  background-size: 200% 200%;
  animation: gradient-x 6s ease infinite;
}

/* Fade-in-up effect */
.fade-in {
  animation: fadeInUp 1.2s ease both;
}
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes glowPulse {
  0%,
  100% {
    filter: drop-shadow(0 0 0px rgba(59, 130, 246, 0.2));
  }
  50% {
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.6));
  }
}
.skill-icon {
  transition: all 0.3s ease;
  cursor: pointer;
}
.skill-icon:hover {
  transform: scale(1.2);
  animation: glowPulse 1.5s infinite;
}

/* fade-up animation for cards */
.skill-card {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.6s ease-out;
}
.skill-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.project-card {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.6s ease-out;
}
.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* hover accent */
.project-card:hover h4 {
  letter-spacing: 1px;
  transition: 0.3s ease;
}

/* responsive tweaks */
@media (max-width: 640px) {
  .project-card {
    padding: 1.5rem;
  }
  .project-card h4 {
    font-size: 1.25rem;
  }
}
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 640px) {
  #experience {
    padding-left: 0 !important;
  }
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}
.animate-float {
  animation: float 3s ease-in-out infinite;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Typing animation cursor */
.cursor::after {
  content: "|";
  color: #38bdf8;
  animation: blink 0.8s infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* Nav link hover effect */
.nav-link {
  position: relative;
  transition: all 0.3s ease;
}
.nav-link:hover::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, #3b82f6, #06b6d4, #a855f7);
  border-radius: 2px;
  opacity: 1;
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  51%,
  100% {
    opacity: 0;
  }
}
.animate-blink {
  animation: blink 0.8s step-start infinite;
}