/* Layout */
.ttb-tdc-wrap { max-width: 960px; margin: 0 auto; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
.ttb-tdc-inputs { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 900px) {
  .ttb-tdc-inputs { grid-template-columns: 1fr 1fr; }
}
.ttb-tdc-field label { display:block; font-weight:600; margin-bottom:6px; }
.ttb-tdc-field textarea { width:100%; padding:10px 12px; border:1px solid #d1d5db; border-radius:10px; min-height:160px; }

.ttb-tdc-controls { top: 0; background:#ffffff; padding:12px; border:1px solid #e5e7eb; border-radius:12px; margin:14px 0; display:grid; gap:10px; box-shadow: 0 2px 8px rgba(0,0,0,.03); }
.ttb-tdc-group { display:flex; flex-wrap:wrap; gap:8px 12px; align-items:center; }
.ttb-tdc-toggle { display:flex; align-items:center; gap:6px; }

.ttb-btn { display:inline-block; padding:10px 14px; border-radius:10px; border:1px solid #d1d5db; background:#fff; cursor:pointer; }
.ttb-btn:hover { background:#f3f4f6; }
.ttb-btn-primary { background:#111827; color:#fff; border-color:#111827; }
.ttb-btn-primary:hover { background:#0b1220; }
.ttb-btn-small { padding:6px 10px; font-size: 13px; }

.ttb-tdc-summary { font-size: 13px; color:#374151; }

.ttb-tdc-outputs { display:grid; grid-template-columns: 1fr; gap: 16px; }
.ttb-tdc-output { border:1px solid #e5e7eb; border-radius:12px; overflow:hidden; }
.ttb-tdc-output-header { display:flex; justify-content:space-between; align-items:center; padding:10px 12px; background:#f8fafc; border-bottom:1px solid #e5e7eb; }
.ttb-tdc-output-box { padding:12px; white-space:pre-wrap; word-wrap:break-word; font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; min-height:160px; }

/* Side-by-side mode (enabled via .is-side class) */
.ttb-tdc-outputs.is-side { grid-template-columns: 1fr 1fr; }

#ttb-tdc-swap, #ttb-tdc-clear, #ttb-tdc-prev, #ttb-tdc-next, #ttb-tdc-print, #ttb-tdc-export, .ttb-tdc-copy { color: #0068ff; }
#ttb-tdc-swap:hover, #ttb-tdc-clear:hover, #ttb-tdc-prev:hover, #ttb-tdc-next:hover, #ttb-tdc-print:hover, #ttb-tdc-export:hover, .ttb-tdc-copy:hover { color: #0068ff; }

@media (max-width: 899px) {
  .ttb-tdc-outputs.is-side { grid-template-columns: 1fr; }
}

/* Diff styles */
.ttb-del { background: #fee2e2; text-decoration: line-through; }
.ttb-ins { background: #dcfce7; text-decoration: underline; }
.ttb-eq  { background: transparent; }
.ttb-change { outline: 1px dashed rgba(0,0,0,.15); }

/* High contrast */
.tdc-contrast .ttb-del { background: #ef4444; color: #fff; }
.tdc-contrast .ttb-ins { background: #22c55e; color:#fff; text-decoration: none; }

/* Print */
@media print {
  #wpadminbar, .site-header, .site-footer, .ttb-tdc-controls { display:none !important; }
  .ttb-tdc-wrap { max-width: 100%; }
  .ttb-tdc-outputs { grid-template-columns: 1fr; }
  .ttb-tdc-output { page-break-inside: avoid; }
}