/* Preview-first affordances for FileNest data, PDF and duplicate-file workflows. */
.data-preflight-preview,
.pdf-operation-preview,
.duplicate-preflight {
  display: grid;
  gap: 12px;
  margin: 18px 0;
  padding: 15px;
  border: 1px solid var(--line-dark);
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff, #fbfaf6);
  box-shadow: 0 8px 24px rgba(22, 54, 45, .06);
}

.data-preview-heading,
.pdf-plan-heading,
.duplicate-preflight-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.data-preview-heading > span,
.pdf-plan-heading > span,
.duplicate-preflight-heading > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.data-preview-heading svg,
.pdf-plan-heading svg,
.duplicate-preflight-heading svg { width: 17px; color: var(--mint-dark); }
.data-preview-heading strong,
.pdf-plan-heading strong,
.duplicate-preflight-heading strong { font-size: 12px; }
.data-preview-heading small,
.pdf-plan-heading small,
.duplicate-preflight-heading small { color: var(--muted); font-size: 8px; font-weight: 750; text-align: right; }

.data-preview-stats,
.pdf-plan-summary,
.duplicate-preflight-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
}
.duplicate-preflight-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.data-preview-stats > span,
.pdf-plan-summary > span,
.duplicate-preflight-stats > span {
  min-width: 0;
  padding: 9px 8px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--mint-soft);
  color: var(--ink-soft);
  font-size: 8px;
  text-align: center;
}
.data-preview-stats b,
.pdf-plan-summary b,
.duplicate-preflight-stats b {
  display: block;
  margin-bottom: 2px;
  color: var(--ink-deep);
  font-size: 15px;
}

.data-preview-columns { display: flex; flex-wrap: wrap; gap: 5px; }
.data-preview-columns span {
  max-width: 150px;
  overflow: hidden;
  padding: 5px 8px;
  border-radius: 999px;
  background: var(--cream);
  color: var(--ink-soft);
  font-size: 9px;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.data-preview-panes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.data-preview-panes > div { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 11px; background: white; }
.data-preview-panes strong { display: block; padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 10px; }
.data-preview-panes pre {
  min-height: 140px;
  max-height: 250px;
  margin: 0;
  overflow: auto;
  padding: 11px;
  color: var(--ink-soft);
  font: 10px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.pdf-operation-preview.has-error { border-color: rgba(167, 68, 54, .45); background: var(--danger-bg); }
.pdf-plan-sequence { display: grid; gap: 7px; }
.pdf-plan-sequence > div {
  display: grid;
  grid-template-columns: 30px 58px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: white;
}
.pdf-plan-sequence > div:not(:has(img)) { grid-template-columns: 30px minmax(0, 1fr); }
.pdf-plan-sequence > div.is-error { border-color: rgba(167, 68, 54, .4); background: var(--danger-bg); }
.pdf-plan-sequence > div > b {
  width: 29px;
  height: 29px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--mint-soft);
  color: var(--mint-dark);
  font-size: 10px;
}
.pdf-plan-sequence img,
.pdf-image-thumb {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--cream);
}
.pdf-plan-sequence span { min-width: 0; display: grid; gap: 3px; }
.pdf-plan-sequence strong,
.pdf-plan-sequence small { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pdf-plan-sequence strong { font-size: 10px; }
.pdf-plan-sequence small { color: var(--muted); font-size: 9px; }

.duplicate-preflight p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.65;
}

/* Sticky preview surfaces need to anchor to the page, not to the rounded tool box.
   overflow: clip keeps the rounded crop without creating a scroll container. */
.tool-workspace { overflow: clip; }

/* Desktop keeps previews readable without allowing them to swallow the control column. */
.rename-preview-panel {
  position: sticky;
  z-index: 14;
  top: 88px;
  align-self: start;
  max-height: calc(100vh - 104px);
  background: white;
}
.rename-preview-panel .original-name > span,
.rename-preview-panel .generated-name > span { font-size: 12px; }
.rename-preview-panel .original-name small,
.rename-preview-panel .generated-name small { font-size: 9px; }

.data-options,
.pdf-options,
.document-options-panel {
  display: flex;
  flex-direction: column;
  align-self: start;
  position: relative;
}
.data-options > h3,
.pdf-options > h3,
.document-options-panel > .document-panel-heading { order: -30; }
.data-preflight-preview,
.pdf-operation-preview,
.document-options-panel > .document-preview {
  order: -20;
  position: sticky;
  z-index: 16;
  top: 88px;
  background-color: rgba(255,253,248,.98);
  backdrop-filter: blur(10px);
}
.data-preflight-preview,
.pdf-operation-preview {
  max-height: 58vh;
  overflow: auto;
}
.document-options-panel > .document-preview {
  width: 100%;
  min-height: 250px;
  max-height: 50vh;
  margin: 0 0 16px;
  overflow: auto;
  padding: 22px;
  border: 1px solid var(--line-dark);
  box-shadow: 0 10px 28px rgba(22,54,45,.1);
}
.document-options-panel > .document-preview h3 { font-size: 23px; }
.document-options-panel > .document-preview p { font-size: 13px; line-height: 1.8; }

@media (max-width: 960px) {
  .data-preview-panes { grid-template-columns: 1fr; }
  .duplicate-preflight-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 820px) {
  /* Narrow screens keep a compact feedback surface above the controls. The preview
     itself scrolls when needed so it never takes over most of the viewport. */
  .rename-app-grid:has(.filename-row) .rename-preview-panel {
    order: 0;
    top: 76px;
    max-height: 38vh;
    padding-top: 10px;
    padding-bottom: 8px;
    overflow: hidden;
    border-bottom: 1px solid var(--line-dark);
    box-shadow: 0 10px 24px rgba(22,54,45,.11);
  }
  .rename-app-grid:has(.filename-row) .rename-rule-panel { order: 1; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .filename-list {
    min-height: 94px;
    max-height: 22vh;
    overflow: auto;
  }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .filename-row { min-height: 58px; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .original-name > span,
  .rename-app-grid:has(.filename-row) .rename-preview-panel .generated-name > span { font-size: 13px; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .preview-tip { display: none; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .validation-banner { margin: 7px 0; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .download-bar { padding-top: 8px; }

  .data-options > h3,
  .pdf-options > h3,
  .document-options-panel > .document-panel-heading { order: -30; }
  .data-preflight-preview,
  .pdf-operation-preview,
  .document-options-panel > .document-preview {
    order: -20;
    top: 76px;
    z-index: 68;
    margin-top: 0;
    box-shadow: 0 10px 24px rgba(22,54,45,.12);
  }
  .data-preflight-preview { max-height: 38vh; }
  .pdf-operation-preview { max-height: 40vh; }
  .document-options-panel > .document-preview {
    min-height: 220px;
    max-height: 38vh;
    padding: 18px;
  }

  /* Input text is already visible in the queue. On a narrow screen the output
     sample is the useful feedback while the target-format controls are adjusted. */
  .data-preflight-preview .data-preview-panes > div:first-child { display: none; }
  .data-preflight-preview .data-preview-panes { grid-template-columns: 1fr; }
  .data-preflight-preview .data-preview-panes pre { min-height: 110px; max-height: 170px; font-size: 10px; }
  .pdf-plan-sequence { max-height: 180px; overflow: auto; padding-right: 2px; }
  .pdf-plan-sequence > div { grid-template-columns: 30px 60px minmax(0, 1fr); }
  .pdf-plan-sequence > div:not(:has(img)) { grid-template-columns: 30px minmax(0, 1fr); }
  .pdf-plan-sequence img,
  .pdf-image-thumb { width: 58px; height: 58px; }
  .pdf-plan-sequence strong { font-size: 11px; }
  .pdf-plan-sequence small { font-size: 10px; }
}

@media (max-width: 560px) {
  .data-preflight-preview,
  .pdf-operation-preview,
  .duplicate-preflight { padding: 11px; border-radius: 13px; }
  .data-preview-heading,
  .pdf-plan-heading,
  .duplicate-preflight-heading { align-items: flex-start; }
  .data-preview-heading strong,
  .pdf-plan-heading strong,
  .duplicate-preflight-heading strong { font-size: 13px; }
  .data-preview-heading small,
  .pdf-plan-heading small,
  .duplicate-preflight-heading small { max-width: 128px; font-size: 9px; }
  .data-preview-stats,
  .pdf-plan-summary { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .data-preview-stats > span,
  .pdf-plan-summary > span,
  .duplicate-preflight-stats > span { font-size: 9px; }
  .data-preview-stats b,
  .pdf-plan-summary b,
  .duplicate-preflight-stats b { font-size: 15px; }
  .data-preview-panes pre { max-height: 155px; font-size: 10px; }

  .rename-app-grid:has(.filename-row) .rename-preview-panel { top: 68px; max-height: 36vh; padding-right: 12px; padding-left: 12px; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .preview-toolbar strong { font-size: 13px; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .filename-row { min-height: 58px; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .download-bar > div { display: none; }
  .rename-app-grid:has(.filename-row) .rename-preview-panel .download-bar .primary-action { width: 100%; }

  .data-preflight-preview,
  .pdf-operation-preview,
  .document-options-panel > .document-preview { top: 68px; }
  .data-preflight-preview { max-height: 36vh; }
  .pdf-operation-preview { max-height: 38vh; }
  .document-options-panel > .document-preview { min-height: 200px; max-height: 36vh; padding: 16px; }
  .document-options-panel > .document-preview h3 { font-size: 21px; }
  .document-options-panel > .document-preview p { font-size: 13px; }
}