/* Shared document reader: cases, library and version-pinned Room assets. */
.file-reader {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-height: 0;
  background: var(--bg-surface);
}
.file-reader-standalone {
  height: calc(100dvh - 52px);
}
.file-reader.is-expanded {
  position: fixed;
  inset: 0;
  z-index: 80;
  width: 100%;
  height: 100dvh;
}
.file-reader-expand {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--border-default);
  border-radius: 7px;
  background: var(--bg-surface);
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
}
.file-reader-expand:hover,
.file-reader-expand[aria-pressed="true"] {
  background: var(--bg-surface-2);
}
.file-reader-expand:focus-visible {
  outline: 2px solid var(--accent-brief);
  outline-offset: 2px;
}
.file-reader-toolbar {
  display: flex;
  align-items: center;
  flex: none;
  min-height: 62px;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-default);
}
.file-reader-title {
  flex: 1;
  min-width: 0;
}
.file-reader-title strong {
  display: block;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.5;
  font-weight: 550;
}
.file-reader-title > span {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}
.file-reader-icon,
.file-reader-paging a,
.file-reader-paging button {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  flex: none;
  border: 0;
  border-radius: 6px;
  color: var(--text-secondary);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
}
.file-reader-icon:hover,
.file-reader-paging a:hover,
.file-reader-paging button:hover,
.file-reader-icon[aria-expanded="true"] {
  background: var(--bg-surface-2);
}
.file-reader-paging {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-muted);
}
.file-reader-paging [aria-disabled="true"],
.file-reader-paging button:disabled {
  opacity: 0.3;
  cursor: default;
}
.file-reader-layout {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.file-reader-page {
  flex: 1;
  min-width: 0;
  height: 100%;
  overflow: auto;
  background: var(--bg-canvas);
}
.file-reader-page iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.file-reader-page img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 25px auto;
}
.file-reader-paper {
  margin: 26px auto;
  max-width: 820px;
  min-height: calc(100% - 52px);
  background: var(--bg-surface);
  padding: 48px 54px;
  box-shadow: 0 1px 8px #0001;
}
.file-reader-paper pre {
  font-family: inherit;
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-secondary);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  margin: 0;
}
.file-reader-notice {
  font-size: 11px;
  padding: 8px 18px;
  color: var(--text-muted);
  text-align: center;
  border-bottom: 1px solid var(--border-default);
  background: var(--bg-surface);
}
.file-reader-info {
  width: 310px;
  flex: none;
  overflow: auto;
  padding: 23px;
  border-left: 1px solid var(--border-default);
  font-size: 12px;
}
.file-reader-info h2 {
  font-size: 14px;
  font-weight: 550;
  margin: 0 0 20px;
}
.file-reader-info h3 {
  font-size: 11px;
  font-weight: 550;
  margin: 26px 0 10px;
  color: var(--text-muted);
}
.file-reader-info dt {
  color: var(--text-faint);
  font-size: 10px;
  margin: 14px 0 4px;
}
.file-reader-info dd {
  margin: 0;
  overflow-wrap: anywhere;
}
.file-reader-info p,
.file-info-caption {
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.7;
}
.file-reader-info a {
  color: var(--accent-brief);
  text-underline-offset: 3px;
}
.file-usage-link {
  display: block;
  margin: 12px 0;
}
.file-usage-link small {
  display: block;
  color: var(--text-muted);
  font-size: 10px;
  margin-top: 3px;
}
.file-reader-empty {
  padding: 70px 25px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}
.file-reader-empty h2 {
  font-size: 18px;
  color: var(--text-primary);
}
.file-reader-loading {
  padding: 24px;
  text-align: center;
}
.file-reader-loading button {
  display: block;
  margin-left: auto;
  background: none;
  border: 0;
  font-size: 24px;
  cursor: pointer;
}

.file-reader-info[hidden] {
  display: none;
}

@media (max-width: 700px) {
  .file-reader-toolbar {
    gap: 4px;
    padding: 8px;
  }
  .file-reader-paging {
    gap: 0;
  }
  .file-reader-paging span {
    display: none;
  }
  .file-reader-paper {
    padding: 24px;
    margin: 12px;
  }
  .file-reader-info {
    width: min(310px, 85vw);
    position: absolute;
    right: 0;
    top: 62px;
    bottom: 0;
    background: var(--bg-surface);
    box-shadow: -8px 0 22px #0002;
    z-index: 1;
  }
  .file-reader-standalone {
    position: relative;
  }
}

.file-usage {
  margin: 12px 0;
}
.file-usage strong {
  font-size: 11px;
  font-weight: 500;
  line-height: 1.6;
}
.file-usage > div {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 12px;
  margin-top: 8px;
}
.file-usage a {
  font-size: 11px;
}
.file-reader-text-toggle {
  border: 1px solid var(--border-default);
  border-radius: 5px;
  padding: 5px 8px;
  color: var(--text-secondary);
  font-size: 11px;
  background: none;
  cursor: pointer;
}
.file-reader-page iframe[hidden],
.file-reader-paper[hidden] {
  display: none;
}