.sc-image-viewer {
  position: fixed;
  inset: 0;
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 0;
  color: var(--sc-color-ink);
  background: transparent;
}

.sc-image-viewer[open] { display: grid; }
.sc-image-viewer::backdrop { background: rgba(7, 18, 13, 0.88); }

.sc-image-viewer__viewport {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  overflow: auto;
  padding: clamp(4.5rem, 9vw, 6.5rem) clamp(var(--sc-space-4), 5vw, var(--sc-space-16)) calc(6rem + env(safe-area-inset-bottom));
  overscroll-behavior: contain;
  cursor: zoom-out;
  touch-action: pan-x pan-y;
}

.sc-image-viewer__image {
  display: block;
  max-width: min(88vw, 90rem);
  max-height: calc(100dvh - 11rem);
  object-fit: contain;
  transform: scale(var(--sc-image-viewer-scale, 1));
  transform-origin: center;
  transition: transform var(--sc-motion-base) var(--sc-ease);
  cursor: zoom-in;
  user-select: none;
  -webkit-user-drag: none;
}

.sc-image-viewer__close,
.sc-image-viewer__toolbar button {
  display: inline-grid;
  min-width: 2.75rem;
  min-height: 2.75rem;
  place-items: center;
  border: 1px solid var(--sc-color-border-strong);
  border-radius: var(--sc-radius-md);
  color: var(--sc-color-ink);
  background: var(--sc-color-surface);
  box-shadow: var(--sc-shadow-md);
  font: 800 1rem/1 var(--sc-font-sans);
  cursor: pointer;
}

.sc-image-viewer__close {
  position: fixed;
  z-index: 3;
  top: max(var(--sc-space-4), env(safe-area-inset-top));
  right: max(var(--sc-space-4), env(safe-area-inset-right));
  font-size: 1.5rem;
}

.sc-image-viewer__toolbar {
  position: fixed;
  z-index: 3;
  bottom: max(var(--sc-space-4), env(safe-area-inset-bottom));
  left: 50%;
  display: flex;
  align-items: center;
  gap: var(--sc-space-2);
  padding: var(--sc-space-2);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--sc-radius-lg);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--sc-shadow-lg);
  transform: translateX(-50%);
  backdrop-filter: blur(12px);
}

.sc-image-viewer__toolbar button:hover:not(:disabled),
.sc-image-viewer__close:hover { color: var(--sc-color-brand-800); border-color: var(--sc-color-brand-200); background: var(--sc-color-brand-50); }
.sc-image-viewer__toolbar button:focus-visible,
.sc-image-viewer__close:focus-visible { outline: 3px solid var(--sc-color-brand-200); outline-offset: 3px; }
.sc-image-viewer__toolbar button:disabled { opacity: 0.45; cursor: not-allowed; }
.sc-image-viewer__reset { min-width: 5rem !important; }

@media (max-width: 640px) {
  .sc-image-viewer__viewport { padding: 4.5rem var(--sc-space-3) calc(6rem + env(safe-area-inset-bottom)); }
  .sc-image-viewer__image { max-width: 94vw; max-height: calc(100dvh - 10rem); }
}

@media (prefers-reduced-motion: reduce) {
  .sc-image-viewer__image { transition: none; }
}