::selection {
  background: rgba(56, 189, 248, 0.25);
  color: var(--color-text);
}

.glass {
  background: var(--color-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-glass-border);
}

.glass-strong {
  background: var(--color-surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-glass-border);
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.4) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@media print {
  .bg-layer,
  .back-to-top,
  .share-button,
  .scroll-indicator,
  .toast {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .link-card,
  .featured-card {
    background: white !important;
    border: 1px solid #ddd !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
  }

  .container {
    max-width: 100% !important;
  }
}