.image-viewer {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 100%;
  margin: 2rem auto;
}

/* =========================
   MAIN VIEWER
   ========================= */
.viewer-main {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* media */
.viewer-main img,
.viewer-main video {
  width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: 12px;
  cursor: zoom-in;
  display: block;
}

/* =========================
   CLOSE BUTTON (top-right overlay)
   ========================= */
.viewer-close {
  position: absolute;
  top: 12px;
  right: 12px;

  width: 38px;
  height: 38px;

  border: none;
  border-radius: 50%;

  background: rgba(0, 0, 0, 0.65);
  color: #fff;

  font-size: 22px;
  line-height: 38px;

  cursor: pointer;

  display: none; /* JS + zoom state controls visibility */

  align-items: center;
  justify-content: center;

  z-index: 50; /* higher than image/video */
  transition: background 0.2s ease, transform 0.2s ease;
}

.viewer-close:hover {
  background: rgba(0, 0, 0, 0.85);
  transform: scale(1.05);
}

/* show only when zoomed */
.viewer-main.zoomed .viewer-close {
  display: flex;
}

/* =========================
   THUMBNAILS
   ========================= */
.viewer-thumbs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.viewer-thumbs a {
  flex: 0 0 auto;
  width: 200px;
  height: 150px;

  border-radius: 10px;
  overflow: hidden;

  opacity: 0.7;
  transition: 0.2s ease;
}

.viewer-thumbs a:hover {
  opacity: 1;
  transform: scale(1.08);
}

.viewer-thumbs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* =========================
   LIGHTBOX OVERRIDES
   ========================= */
.glightbox-container img,
.glightbox-container video {
  max-width: 95%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 12px;
}

/* =========================
   THEME TOGGLE
   ========================= */
#theme-toggle {
  border: none;
  background: transparent;
  padding: 0.2rem;
}

#theme-toggle i {
  border: none;
  background: none;
  box-shadow: none;
  padding: 0;
  font-size: 1.2rem;
  color: var(--accent);
  cursor: pointer;
  transition: transform 0.25s ease, color 0.25s ease, opacity 0.2s ease;
}

.viewer-thumbs a.video-thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111;
  color: white;
  font-size: 12px;
  position: relative;
}

.viewer-thumbs a.video-thumb::after {
  content: "▶";
  font-size: 20px;
}