/**
 * Media Base CSS
 * Shared styles for MediaViewer and Slideshow components
 */
/* ===== Variables ===== */
:root {
  --media-transition-speed: 0.3s;
  --media-transition-timing: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --media-bg-overlay: rgba(0, 0, 0, 0.5);
  --media-bg-dark: rgba(0, 0, 0, 0.7);
  --media-nav-size: 3rem;
  --media-nav-size-mobile: 2.5rem;
  --media-indicator-size: 10px;
  --media-indicator-size-mobile: 8px;
}
/* ===== Navigation Buttons ===== */
.media-nav-btn {
  background: var(--media-bg-overlay);
  border: none;
  color: white;
  width: var(--media-nav-size);
  height: var(--media-nav-size);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
  transition: opacity var(--media-transition-speed) ease,
    background var(--media-transition-speed) ease;
}
.media-nav-btn:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.2);
}
.media-nav-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.4);
}
/* ===== Caption ===== */
.media-caption-base {
  position: absolute;
  left: 0;
  right: 0;
  padding: 1rem;
  background: var(--media-bg-dark);
  color: white;
  text-align: center;
  z-index: 5;
}
.media-caption-bottom {
  bottom: 0;
}
.media-caption-top {
  top: 0;
}
.media-caption-gradient {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
}
/* ===== Indicators ===== */
.media-indicator {
  width: var(--media-indicator-size);
  height: var(--media-indicator-size);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.3);
  cursor: pointer;
  padding: 0;
  transition: all var(--media-transition-speed) ease;
}
.media-indicator:hover {
  background: rgba(255, 255, 255, 0.7);
}
.media-indicator.active {
  background: white;
  border-color: white;
}
/* ===== Loading Spinner ===== */
@keyframes media-spin {
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}
.media-loading {
  position: relative;
}
.media-loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  border-top-color: rgba(255, 255, 255, 0.9);
  animation: media-spin 0.8s linear infinite;
  z-index: 5;
}
/* ===== Responsive ===== */
@media (max-width: 768px) {
  :root {
    --media-nav-size: var(--media-nav-size-mobile);
    --media-indicator-size: var(--media-indicator-size-mobile);
  }
  .media-caption-base {
    padding: 0.75rem;
    font-size: 0.9rem;
  }
}