/* prompt-diff-compare — style.css (RT-AI-015). Tokens only. */
#pdc { display: flex; flex-direction: column; gap: 1rem; }
.pdc-controls { display: flex; flex-wrap: wrap; align-items: center; gap: .65rem 1.25rem; }
.pdc-mode-group { display: flex; align-items: center; gap: .9rem; }
.pdc-mode-legend { font-size: .8rem; font-weight: 600; color: var(--rt-ink-soft, #2A3340); }
.pdc-mode-opt { display: inline-flex; align-items: center; gap: .35rem; font-size: .85rem; color: var(--rt-ink, #14213d); cursor: pointer; }
.pdc-mode-opt input { accent-color: var(--rt-accent, #e8622a); cursor: pointer; }
.pdc-mode-opt input:focus-visible { outline: 2px solid var(--rt-accent, #e8622a); outline-offset: 2px; }

.pdc-panes { display: grid; grid-template-columns: 1fr 1fr; gap: .75rem; }
.pdc-pane { display: flex; flex-direction: column; gap: .35rem; }
.pdc-label { font-size: .8rem; font-weight: 600; color: var(--rt-ink-soft, #2A3340); }
.pdc-input {
  width: 100%; min-height: 160px; padding: .5rem .65rem; font-size: 16px; line-height: 1.5;
  border: 1px solid var(--rt-border, #d8dce2); border-radius: 8px; resize: vertical;
  background: var(--rt-card, #fff); color: var(--rt-ink, #14213d);
  font-family: var(--rt-mono, ui-monospace, 'SF Mono', Menlo, Consolas, monospace);
}
.pdc-input:focus-visible { outline: 2px solid var(--rt-accent, #e8622a); outline-offset: 2px; }

.pdc-out-head { display: flex; align-items: center; justify-content: space-between; gap: .5rem; flex-wrap: wrap; }
.pdc-out-title { font-size: .8rem; font-weight: 600; color: var(--rt-ink-soft, #2A3340); }
.pdc-summary {
  font-size: .8rem; font-weight: 600; padding: .25rem .6rem; border-radius: 999px;
  background: var(--rt-bg, #f7f6f3); border: 1px solid var(--rt-border, #d8dce2); color: var(--rt-ink, #14213d);
}
.pdc-out {
  width: 100%; min-height: 180px; padding: .75rem; font-size: .9rem; line-height: 1.7;
  font-family: var(--rt-mono, ui-monospace, 'SF Mono', Menlo, Consolas, monospace);
  border: 1px solid var(--rt-border, #d8dce2); border-radius: 10px;
  background: var(--rt-card, #fff); color: var(--rt-ink, #14213d);
  white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere;
}
.pdc-out:focus-visible { outline: 2px solid var(--rt-accent, #e8622a); outline-offset: 2px; }

/* Additions/deletions never rely on colour alone — the +/− marks and the
 * line-through on deletions carry the meaning too. */
.pdc-add { background: rgba(34, 197, 94, .18); border-radius: 3px; }
.pdc-del { background: rgba(220, 38, 38, .16); border-radius: 3px; text-decoration: line-through; }
.pdc-mark { font-weight: 700; opacity: .8; margin-right: .1em; text-decoration: none; display: inline-block; }
.pdc-del .pdc-mark { text-decoration: none; }
.pdc-empty { color: var(--rt-ink-soft, #2A3340); font-style: italic; }

@media (max-width: 640px) {
  .pdc-panes { grid-template-columns: 1fr; }
}