/* ===== Skill Popup (Glossy Transparent / Glassmorphism Style) ===== */
#skillPopup {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.15); /* light transparent overlay */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

/* Popup Box */
#skillPopup .popup-box {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 20px;
  width: 50%;
  max-width: 600px;
  padding: 35px 30px;
  text-align: center;
  color: #f1f1f1;
  position: relative;
  backdrop-filter: blur(25px) saturate(160%);
  -webkit-backdrop-filter: blur(25px) saturate(160%);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2),
    0 0 25px rgba(0, 153, 255, 0.25);
  animation: skillPopupFade 0.3s ease, glassGlow 3s infinite alternate;
  transition: all 0.3s ease;
}

/* Heading */
#skillPopup .popup-box h2 {
  margin-bottom: 18px;
  font-size: 1.9rem;
  font-weight: 600;
  color: #00b4ff;
  text-shadow: 0 0 15px rgba(0, 180, 255, 0.5);
}

/* List Items */
#skillPopup .popup-box ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#skillPopup .popup-box ul li {
  font-size: 1.05rem;
  margin: 12px 0;
  color: #e8e8e8;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 10px 14px;
  transition: 0.3s;
}

#skillPopup .popup-box ul li:hover {
  background: rgba(0, 176, 255, 0.15);
  color: #00b4ff;
  transform: scale(1.05);
}

/* Close Button */
.close-popup {
  position: absolute;
  top: 12px;
  right: 20px;
  font-size: 30px;
  cursor: pointer;
  color: #cfcfcf;
  transition: 0.3s;
}

.close-popup:hover {
  color: #00b4ff;
  transform: rotate(90deg);
}

/* Animations */
@keyframes skillPopupFade {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes glassGlow {
  0% {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2),
      0 0 25px rgba(0, 153, 255, 0.25);
  }
  100% {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25),
      0 0 40px rgba(0, 191, 255, 0.35);
  }
}

/* Responsive */
@media (max-width: 768px) {
  #skillPopup .popup-box {
    width: 85%;
    padding: 25px 20px;
  }
  #skillPopup .popup-box h2 {
    font-size: 1.6rem;
  }
}