/* CSS-based placeholder images */
.placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #1a1a2e, #0a0a0f);
  color: #7df9ff;
  font-size: 1.5rem;
  font-weight: bold;
  text-align: center;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.placeholder::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    45deg,
    rgba(125, 249, 255, 0.05) 0%,
    rgba(125, 249, 255, 0.1) 40%,
    rgba(125, 249, 255, 0.05) 100%
  );
  background-size: 400% 400%;
  animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}