.preview-prep {
  width: 100%;
  margin-top: 16px;
  display: grid;
  gap: 9px;
}

.preview-prepare-button {
  width: 100%;
  min-height: 50px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, var(--line));
  border-radius: 16px;
  background: color-mix(in srgb, var(--accent) 14%, var(--surface-solid));
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: transform .12s ease, border-color .12s ease, background .12s ease, opacity .12s ease;
}

.preview-prepare-button:active:not(:disabled) {
  transform: scale(.99);
}

.preview-prepare-button:disabled {
  cursor: default;
  opacity: .72;
}

.preview-prepare-icon {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  color: var(--accent);
}

.preview-prepare-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.preview-progress {
  display: grid;
  gap: 6px;
  padding: 0 2px;
}

.preview-progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 11.5px;
  font-weight: 650;
}

.preview-progress-head strong {
  min-width: 36px;
  color: var(--text);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  text-align: left;
}

.preview-progress-track {
  position: relative;
  width: 100%;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(130, 151, 180, .14);
  border: 1px solid rgba(151, 177, 211, .10);
}

.preview-progress-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 72%, #8fc3ff), var(--accent));
  transition: width .18s ease;
}

.preview-prep.is-busy .preview-prepare-button {
  border-color: color-mix(in srgb, var(--accent) 52%, var(--line));
  background: color-mix(in srgb, var(--accent) 18%, var(--surface-solid));
}

.preview-prep.is-ready .preview-prepare-button {
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  background: color-mix(in srgb, var(--accent) 18%, var(--surface-solid));
}

.preview-prep.is-ready .preview-progress-head,
.preview-prep.is-ready .preview-progress-head strong {
  color: color-mix(in srgb, var(--accent) 72%, #ffffff);
}

.preview-prep.has-error .preview-progress-head,
.preview-prep.has-error .preview-progress-head strong {
  color: var(--danger);
}

.preview-file-card {
  width: 100%;
  margin-top: 10px;
  padding: 13px 14px;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 28px;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface-solid);
  color: var(--text);
  text-align: start;
  cursor: pointer;
  box-shadow: 0 8px 26px rgba(24,31,43,.055);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: transform .12s ease, border-color .12s ease, box-shadow .12s ease, background .12s ease, opacity .12s ease;
}

.preview-file-card:active:not(:disabled) {
  transform: scale(.99);
  border-color: rgba(var(--accent-rgb), .34);
  background: color-mix(in srgb, var(--accent-soft) 24%, var(--surface-solid));
}

.preview-file-card:disabled {
  cursor: default;
  opacity: .52;
}

.preview-file-card.is-ready {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--line));
  opacity: 1;
}

.preview-file-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  background: var(--accent-soft);
  color: var(--accent);
}

.preview-file-icon svg {
  width: 30px;
  height: 30px;
  display: block;
}

.preview-file-sheet,
.preview-file-fold {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.preview-file-icon text {
  fill: currentColor;
  font-size: 6px;
  font-weight: 900;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

.preview-file-copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.preview-file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 15px;
  font-weight: 800;
  direction: ltr;
  text-align: right;
}

.preview-file-meta {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.preview-file-open {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 66%, transparent);
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
}

.preview-file-card:disabled .preview-file-open {
  color: var(--muted);
  background: rgba(130,151,180,.08);
}

.preview-file-card:focus-visible,
.preview-prepare-button:focus-visible {
  outline: 3px solid rgba(var(--accent-rgb), .24);
  outline-offset: 2px;
}

@media (max-width: 560px) {
  .preview-prep {
    margin-top: 13px;
    gap: 8px;
  }

  .preview-prepare-button {
    min-height: 48px;
    border-radius: 15px;
    font-size: 14px;
  }

  .preview-progress-head {
    font-size: 11px;
  }

  .preview-progress-head strong {
    font-size: 11px;
  }

  .preview-progress-track {
    height: 7px;
  }

  .preview-file-card {
    margin-top: 9px;
    padding: 12px;
    grid-template-columns: 48px minmax(0, 1fr) 26px;
    gap: 10px;
    border-radius: 17px;
  }

  .preview-file-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .preview-file-icon svg {
    width: 28px;
    height: 28px;
  }

  .preview-file-name {
    font-size: 14px;
  }

  .preview-file-meta {
    font-size: 11px;
  }
}