.join-dialog { width:min(860px,calc(100% - 32px)); padding:0; overflow:hidden; }
.join-dialog[open] { display:flex; flex-direction:column; }
.join-top { padding:22px 26px 16px; margin:0; border-bottom:1px solid var(--line); flex-shrink:0; }
.join-top h2 { font-size:23px; }
.join-content { padding:20px 26px; min-height:0; overflow-y:auto; }
.join-content .dialog-description { margin-bottom:12px; line-height:1.6; }
.join-target { padding:10px 14px; border-radius:8px; background:var(--accent-soft); color:var(--accent); font-size:12px; font-weight:600; overflow-wrap:anywhere; }
.join-section { padding:20px 0; border-bottom:1px solid var(--line); }
.join-section:last-child { border-bottom:0; padding-bottom:0; }
.join-section h3 { display:flex; align-items:center; gap:10px; margin-bottom:14px; font-size:14px; }
.join-section h3 > span { display:grid; place-items:center; width:24px; height:24px; border:1px solid var(--line); border-radius:50%; color:var(--accent); font-size:11px; }
.join-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }
.join-grid label { min-width:0; }
.join-grid input,.join-grid select { width:100%; }
.join-content .helper { line-height:1.6; margin:7px 0; }
.join-options { display:flex; flex-wrap:wrap; gap:8px 20px; }
.join-options .checkbox-label { margin:0; }
.join-fields { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:8px; max-height:180px; overflow:auto; margin-bottom:16px; }
.join-field { display:flex; align-items:center; gap:8px; padding:9px; margin:0; border:1px solid var(--line); border-radius:7px; cursor:pointer; }
.join-field input { width:16px; height:16px; margin:0; flex-shrink:0; accent-color:var(--accent); }
.join-field span { overflow-wrap:anywhere; font-size:12px; }
.join-summary { padding:12px; background:var(--accent-soft); color:var(--accent); border-radius:8px; font-size:13px; font-weight:600; margin:16px 0 8px; line-height:1.7; }
.join-duplicates { overflow-wrap:anywhere; font-size:12px; }
.join-sample-scroll { overflow:auto; max-height:280px; margin-top:12px; border:1px solid var(--line); border-radius:8px; }
.join-sample { width:100%; border-collapse:collapse; font-size:12px; text-align:left; }
.join-sample th { background:var(--paper); position:sticky; top:0; }
.join-sample th,.join-sample td { padding:9px 12px; border-bottom:1px solid var(--line); white-space:pre-wrap; overflow-wrap:anywhere; min-width:100px; max-width:240px; }
.join-footer { flex-shrink:0; padding:16px 26px; border-top:1px solid var(--line); background:var(--surface); }
.join-footer .import-error { margin:0 0 12px; max-height:80px; overflow:auto; }
.join-actions { display:flex; justify-content:space-between; gap:12px; }
@media (max-width:600px) {
  .join-grid { grid-template-columns:1fr; gap:0; }
  .join-fields { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .join-top,.join-content,.join-footer { padding-left:18px; padding-right:18px; }
  .join-top h2 { font-size:20px; }
  .join-actions { flex-wrap:wrap; }
}