/* Document viewer: full-screen reader for slide decks and reports. */
html.dv-lock, html.dv-lock body { overflow: hidden; }

/* The floating hand and mail buttons would sit on top of a project or a slide. */
html.sk-loading .gc-fab, html.dv-lock .gc-fab { display: none; }

.dv {
  position: fixed;
  inset: 0;
  z-index: 10003; /* above the film grain and scroll bar so slides stay clean, below the cursor */
  --dv-ratio: 1.7917;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: #000;
  color: #F4F1E8;
  font-family: 'DM Sans', sans-serif;
  opacity: 0;
  transition: opacity 220ms cubic-bezier(0.22, 1, 0.36, 1);
}
.dv[hidden] { display: none; }
.dv.is-open { opacity: 1; }

/* Top bar */
.dv__bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
  padding: 0.7rem clamp(0.9rem, 2vw, 1.5rem);
  border-bottom: 1px solid rgba(201, 164, 76, 0.22);
}
.dv__heading { display: flex; flex-direction: column; gap: 0.15rem; min-width: 0; }
.dv__project {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #C9A44C;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dv__slide {
  font-size: 0.98rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dv__count { font-size: 0.9rem; font-weight: 600; letter-spacing: 0.08em; font-variant-numeric: tabular-nums; }
.dv__tools { display: flex; align-items: center; justify-content: flex-end; gap: 0.35rem; }
.dv__zoom { display: flex; align-items: center; gap: 0.35rem; }

.dv__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 38px;
  height: 38px;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(244, 241, 232, 0.2);
  border-radius: 0;
  color: #F4F1E8;
  cursor: pointer;
  transition: border-color 220ms ease, color 220ms ease;
}
.dv__btn[hidden] { display: none; }
.dv__btn--text { padding: 0 0.7rem; font: 600 0.74rem 'DM Sans', sans-serif; letter-spacing: 0.08em; font-variant-numeric: tabular-nums; }
.dv__btn:hover:not(:disabled), .dv__btn:focus-visible { border-color: #C9A44C; color: #C9A44C; outline: none; }
.dv__btn:disabled { opacity: 0.35; cursor: default; }
.dv__close { border-color: #C9A44C; color: #C9A44C; }
.dv__star svg { color: #C9A44C; }

/* One slide at a time */
.dv__stage {
  position: relative;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: clamp(0.5rem, 1.5vw, 1.25rem) clamp(0.5rem, 5vw, 4.5rem);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}
.dv__img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  aspect-ratio: var(--dv-ratio);
  object-fit: contain;
  transform-origin: center;
  will-change: transform;
  box-shadow: 0 0 0 1px rgba(201, 164, 76, 0.28);
}
/* Small source files still have to fill the stage, not sit at thumbnail size. */
.dv__img { width: min(100%, calc((100vh - 13rem) * var(--dv-ratio))); }
.dv__stage.is-zoomed { cursor: grab; }
.dv__stage.is-dragging { cursor: grabbing; }

.dv__nav {
  position: absolute;
  top: 50%;
  width: 44px;
  height: 64px;
  margin-top: -32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.72);
  border: 1px solid rgba(201, 164, 76, 0.4);
  border-radius: 0;
  color: #F4F1E8;
  cursor: pointer;
  transition: border-color 220ms ease, color 220ms ease, opacity 220ms ease;
}
.dv__nav--prev { left: clamp(0.4rem, 1vw, 1rem); }
.dv__nav--next { right: clamp(0.4rem, 1vw, 1rem); }
.dv__nav:hover:not(:disabled), .dv__nav:focus-visible { border-color: #C9A44C; color: #C9A44C; outline: none; }
.dv__nav:disabled { opacity: 0; pointer-events: none; }

.dv__loading {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: #C9A44C;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
}
.dv__loading.is-on { opacity: 1; animation: dv-load 1.1s cubic-bezier(0.22, 1, 0.36, 1) infinite; }
@keyframes dv-load { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* One long page */
.dv__scroll {
  display: none;
  min-height: 0;
  overflow: auto;
  padding: 1rem clamp(0.6rem, 3vw, 2rem) 3rem;
  outline: none;
  overscroll-behavior: contain;
  --dv-zoom: 1;
}
.dv__scroll img {
  display: block;
  width: calc(min(100%, 1100px) * var(--dv-zoom));
  height: auto;
  margin: 0 auto 1rem;
  background: #111;
  box-shadow: 0 0 0 1px rgba(201, 164, 76, 0.28);
}
.dv--tall .dv__scroll img { width: calc(min(100%, 860px) * var(--dv-zoom)); }
.dv--tall .dv__thumb { width: 62px; }
.dv--scroll .dv__stage { display: none; }
.dv--scroll .dv__scroll { display: block; }

/* Filmstrip */
.dv__strip {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding: 0.65rem clamp(0.9rem, 2vw, 1.5rem);
  border-top: 1px solid rgba(201, 164, 76, 0.22);
  scrollbar-width: thin;
  scrollbar-color: rgba(201, 164, 76, 0.5) transparent;
}
.dv__thumb {
  position: relative;
  flex: 0 0 auto;
  width: 112px;
  aspect-ratio: var(--dv-ratio);
  padding: 0;
  background: #111;
  border: 1px solid rgba(244, 241, 232, 0.16);
  border-radius: 0;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 220ms ease;
}
.dv__thumb img { display: block; width: 100%; height: 100%; object-fit: cover; opacity: 0.62; transition: opacity 220ms ease; }
.dv__thumb span {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 0.05rem 0.32rem;
  background: #000;
  color: #F4F1E8;
  font-size: 0.66rem;
  font-weight: 600;
}
.dv__thumb svg {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 15px;
  height: 15px;
  fill: #C9A44C;
  stroke: #000;
  stroke-width: 1;
}
.dv__thumb:hover img, .dv__thumb:focus-visible img, .dv__thumb.is-active img { opacity: 1; }
.dv__thumb:hover, .dv__thumb:focus-visible { border-color: rgba(201, 164, 76, 0.6); outline: none; }
.dv__thumb.is-active { border-color: #C9A44C; box-shadow: 0 0 0 1px #C9A44C; }

/* A report brings its own layout: the frame takes everything under the bar. */
.dv__frame { display: block; width: 100%; height: 100%; border: 0; background: #fff; grid-row: 2 / 4; }
.dv__frame[hidden] { display: none; }
.dv--report .dv__stage, .dv--report .dv__scroll, .dv--report .dv__strip,
.dv--report .dv__star, .dv--report .dv__mode, .dv--report .dv__zoom, .dv--report .dv__full, .dv--report .dv__count { display: none; }
.dv--report .dv__bar { grid-template-columns: minmax(0, 1fr) auto; }

@media (max-width: 720px) {
  .dv__bar { grid-template-columns: minmax(0, 1fr) auto; gap: 0.5rem; }
  .dv__count { grid-column: 2; grid-row: 1; }
  .dv__heading { grid-column: 1; grid-row: 1; }
  .dv__tools { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; }
  .dv__close { margin-left: auto; }
  .dv__zoom, .dv__full { display: none; }
  .dv__slide { font-size: 0.9rem; }
  .dv__nav { width: 36px; height: 52px; margin-top: -26px; }
  .dv__stage { padding: 0.4rem; }
  .dv__img { width: 100%; }
  .dv--scroll .dv__strip { display: none; }
  .dv__thumb { width: 88px; }
}
@media (max-width: 960px) and (orientation: landscape) {
  .dv__strip { display: none; }
  .dv__img { width: min(100%, calc((100vh - 5rem) * var(--dv-ratio))); }
}
@media (prefers-reduced-motion: reduce) {
  .dv { transition: none; }
  .dv__loading.is-on { animation: none; transform: scaleX(1); }
}