.manual-viewer {
  box-sizing: border-box;
  max-width: 100%;
  margin-block: 2rem;
  padding: clamp(1rem, 3vw, 1.5rem);
  border: 1px solid #dbe5ef;
  border-radius: 18px;
  background: linear-gradient(145deg, #f7fbff 0%, #fff 70%);
  box-shadow: 0 12px 34px rgb(24 61 96 / 8%);
}

.manual-viewer *,
.manual-viewer *::before,
.manual-viewer *::after {
  box-sizing: border-box;
}

.manual-viewer__poster {
  display: grid;
  grid-template-columns: minmax(96px, 150px) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: center;
}

.manual-viewer__actions {
  display: grid;
  gap: .75rem;
}

.manual-viewer__poster[hidden] {
  display: none;
}

.manual-viewer__cover {
  width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 24px rgb(0 0 0 / 16%);
}

.manual-viewer__open,
.manual-viewer__control {
  min-height: 44px;
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: #1479d1;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.manual-viewer__open {
  padding: .85rem 1.1rem;
}

.manual-viewer__open:hover,
.manual-viewer__control:hover {
  background: #0c63ad;
}

.manual-viewer__open:focus-visible,
.manual-viewer__control:focus-visible,
.manual-viewer__download:focus-visible {
  outline: 3px solid #ffd760;
  outline-offset: 3px;
}

.manual-viewer__download {
  display: inline-flex;
  gap: .45rem;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: .7rem 1rem;
  border: 1px solid #1479d1;
  border-radius: 10px;
  color: #0c63ad !important;
  background: #fff;
  font: inherit;
  font-weight: 700;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}

.manual-viewer__download::before {
  content: "↓";
  font-size: 1.15em;
  line-height: 1;
}

.manual-viewer__download:hover {
  color: #fff !important;
  background: #0c63ad;
}

.manual-viewer__filesize {
  font-size: .88em;
  font-weight: 400;
  white-space: nowrap;
  opacity: .8;
}

.manual-viewer__open:disabled {
  cursor: progress;
  opacity: .7;
}

.manual-viewer__stage {
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid #cbd7e3;
  border-radius: 12px;
  background: #eaf0f5;
}

.manual-viewer__toolbar {
  display: grid;
  grid-template-columns: auto auto minmax(9rem, 1fr) auto auto auto auto;
  gap: .5rem;
  align-items: center;
  padding: .65rem;
  color: #1d2b38;
  background: #fff;
  border-bottom: 1px solid #cbd7e3;
}

.manual-viewer__control {
  min-width: 44px;
  padding: .55rem .75rem;
}

.manual-viewer__fit,
.manual-viewer__download-toolbar {
  padding-inline: .85rem;
}

.manual-viewer__download-toolbar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff !important;
  opacity: 1;
  text-decoration: none;
}

.manual-viewer__status {
  min-width: 0;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.manual-viewer__canvas-wrap {
  display: grid;
  place-items: start center;
  max-height: min(78vh, 900px);
  padding: 1rem;
  overflow: auto;
}

.manual-viewer__canvas {
  display: block;
  max-width: none;
  background: #fff;
  box-shadow: 0 8px 24px rgb(0 0 0 / 16%);
}

.manual-viewer__error {
  padding: 1rem;
  color: #7c1d1d;
  background: #fff1f1;
}

@media (max-width: 620px) {
  .manual-viewer {
    padding: .85rem;
    border-radius: 14px;
  }

  .manual-viewer__poster {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: .8rem;
  }

  .manual-viewer__open,
  .manual-viewer__download {
    width: 100%;
    padding-inline: .7rem;
    font-size: .95rem;
  }

  .manual-viewer__toolbar {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: .4rem;
    padding: .55rem;
  }

  .manual-viewer__status {
    grid-column: 1 / -1;
    grid-row: 1;
    text-align: center;
  }

  .manual-viewer__toolbar [data-prev] {
    grid-column: 1;
    grid-row: 2;
  }

  .manual-viewer__toolbar [data-next] {
    grid-column: 2;
    grid-row: 2;
  }

  .manual-viewer__toolbar [data-zoom-out] {
    grid-column: 3;
    grid-row: 2;
  }

  .manual-viewer__toolbar [data-zoom-in] {
    grid-column: 4;
    grid-row: 2;
  }

  .manual-viewer__fit {
    grid-column: 1 / 3;
    grid-row: 3;
  }

  .manual-viewer__download-toolbar {
    grid-column: 3 / 5;
    grid-row: 3;
  }

  .manual-viewer__control {
    width: 100%;
    min-width: 0;
    padding-inline: .4rem;
  }

  .manual-viewer__canvas-wrap {
    padding: .5rem;
  }
}