/* Sprint 3 — Performance: Bilder, LCP, Paint */

img[fetchpriority="high"],
img#heroPhoto {
  content-visibility: visible;
}

img#contactPhoto {
  content-visibility: auto;
}

.project-card__preview iframe {
  content-visibility: auto;
  contain: strict;
}

.project-card__preview iframe[data-lazy-src]:not([src]) {
  min-height: 180px;
  background: rgba(128, 128, 128, 0.08);
}

.contact-map-embed iframe {
  content-visibility: auto;
}

/* Reduziert Paint für inaktive Slides (zusätzlich zu shell-performance) */
.slide:not(.active) img,
.slide:not(.active) iframe {
  content-visibility: hidden;
}

.slide.active img#heroPhoto {
  content-visibility: visible;
}

@media (max-width: 768px) {
  .home-portrait-card {
    contain: layout style paint;
  }
}

@media (prefers-reduced-motion: reduce) {
  .project-card,
  .welten-highlight-card,
  .welten-leistung-card {
    transition: none !important;
  }
}