/* Full-screen issue viewer - minimal arrows, black background, responsive */

/* Viewer timing – edit these for easy tweaking on server */
:root {
  --viewer-slide-duration: 320;      /* ms – slide current image off when committing */
  --viewer-snap-duration: 220;       /* ms – snap back / slide off for queued swipe */
  --viewer-fade-duration: 600;       /* ms – opacity transition for new image fade-in */
  --viewer-fade-timeout: 650;        /* ms – when isCommitting clears (after fade) */
  --viewer-outgoing-cleanup: 820;    /* ms – remove outgoing layer classes */
  --viewer-layer-fade: 800;          /* ms – default layer opacity (arrow nav etc) */
}

* {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
}
#viewer-app {
  position: fixed;
  inset: 0;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
#viewer-image-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}
.viewer-layer {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity calc(var(--viewer-layer-fade) / 1000 * 1s) ease-out;
  pointer-events: none;
}
.viewer-layer.viewer-current {
  opacity: 1;
}
/* Outgoing image stays on top and fades out, so new image is revealed underneath */
.viewer-layer.viewer-outgoing {
  z-index: 1;
  opacity: 1;
}
.viewer-layer.viewer-outgoing.viewer-outgoing-active {
  opacity: 0;
}
.viewer-layer img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  pointer-events: none;
}
/* Minimal overlay arrows - icon only, no bar/background */
.viewer-arrow {
  position: fixed;
  top: 0;
  bottom: 0;
  width: 56px;
  max-width: 15vw;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
  background: none;
  border: none;
  padding: 0;
}
.viewer-arrow:hover,
.viewer-arrow:focus {
  opacity: 0.9;
}
.viewer-arrow:active {
  opacity: 1;
}
#viewer-arrow-left {
  left: 0;
  padding-left: 8px;
  justify-content: flex-start;
}
#viewer-arrow-right {
  right: 0;
  padding-right: 8px;
  justify-content: flex-end;
}
/* Close button - upper right corner */
.viewer-close {
  position: fixed;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  z-index: 11;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: #fff;
  opacity: 0.6;
  transition: opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
  background: none;
  border: none;
  outline: none;
  appearance: none;
}
.viewer-close:hover,
.viewer-close:focus {
  opacity: 0.9;
}
.viewer-close:active {
  opacity: 1;
}
.viewer-close svg {
  width: 20px;
  height: 20px;
  color: #fff;
  filter: drop-shadow(0 0 2px rgba(0,0,0,0.8));
}
.viewer-arrow svg {
  width: 28px;
  height: 28px;
  fill: none;
  stroke: #fff;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 2px rgba(0,0,0,0.8));
}
/* Optional counter - subtle */
#viewer-counter {
  position: fixed;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  color: rgba(255,255,255,0.6);
  font: 12px/1.4 system-ui, sans-serif;
  pointer-events: none;
}