/* ------------------------------------------
   INTRO SECTION
------------------------------------------ */
.intro-section {
  text-align: center;
  padding: 40px 10px 50px;
}

.intro-title {
  margin: 0;
  font-size: 2.6rem;
}

.intro-subtitle {
  margin: 10px 0 5px;
  font-size: 1.2rem;
  opacity: 0.9;
}

.intro-bio {
  font-size: 1rem;
  opacity: 0.85;
  max-width: 700px;
  margin: 10px auto 25px;
}

.intro-links {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-top: 12px;
}

.intro-icon {
  width: 46px;
  height: 46px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.intro-icon img {
  width: 70%;
  height: 70%;
  object-fit: contain;
  display: block;
  transition: filter 0.25s ease, transform 0.25s ease;
  filter: brightness(0) invert(1);
}

.intro-icon img:hover {
  filter: brightness(0) invert(1) drop-shadow(0 0 6px var(--green));
  transform: translateY(-2px);
}

/* Highlight CV icon with shimmering glow */
.intro-icon.cv img {
  animation: cvShimmer 2.4s ease-in-out infinite;
}

.intro-icon.cv:hover img {
  animation: none;
}

/* Shimmer animation */
@keyframes cvShimmer {
  0% {
    filter: brightness(0) invert(1) drop-shadow(0 0 4px var(--green-alpha-25));
    transform: translateY(0) rotate(0deg);
  }
  50% {
    filter: brightness(0) invert(1) drop-shadow(0 0 10px var(--green));
    transform: translateY(-1px) rotate(1deg);
  }
  100% {
    filter: brightness(0) invert(1) drop-shadow(0 0 4px var(--green-alpha-25));
    transform: translateY(0) rotate(0deg);
  }
}