:root{
  --bg:#fff;
  --fg:#111827;
  --muted:#6b7280;
  --line:#e5e7eb;
  --card:#f9fafb;
  --btn:#111827;
  --btnfg:#fff;
  --danger:#b91c1c;
  --warn:#92400e;
  --warnbg:#fffbeb;
  --r:12px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--fg);
  background:var(--bg);
}

.nw-header{
  padding:14px 12px 10px;
  border-bottom:1px solid var(--line);
}
.nw-title{ margin:4px 0 0; font-size:18px; line-height:1.25; }
.nw-subtitle{ margin:6px 0 0; color:var(--muted); font-size:12.5px; line-height:1.45; }

.nw-lang-switch{ text-align:center; margin:2px 0 6px; font-size:11px; color:var(--muted); }
.nw-lang-switch button{ border:none; background:transparent; padding:0 2px; cursor:pointer; font-size:11px; color:#4b5563; }
.nw-lang-switch button.active{ font-weight:600; text-decoration:underline; }

.nw-main{ padding:12px; margin:0 auto; max-width:1160px; }

.ad-slot{
  border:1px dashed var(--line);
  color:var(--muted);
  font-size:12px;
  padding:10px;
  border-radius:var(--r);
  text-align:center;
}
.ad-top{ margin:10px 0 12px; }
.ad-bottom{ margin:18px 0 10px; }

.csvtidy-brief{ margin:8px 0 12px; }
.csvtidy-brief p{ margin:6px 0; font-size:13px; line-height:1.55; }
.csvtidy-privacy{ color:var(--muted); font-size:12px; }

.csvtidy-steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin:14px 0 18px;
}
.csvtidy-step,
.card,
.csvtidy-output-summary-wrap,
.csvtidy-note,
.csvtidy-faq,
.csvtidy-related-links,
.nw-donate{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:12px;
}
.csvtidy-step strong,
.csvtidy-step span{ display:block; }
.csvtidy-step strong{ margin-bottom:6px; }
.csvtidy-step span{ color:var(--muted); font-size:12.5px; line-height:1.5; }

.panel-title{ margin:10px 0 8px; font-size:13px; }
.panel-head{ display:flex; align-items:center; justify-content:space-between; gap:10px; }

.field{ display:block; margin:10px 0; }
.field.inline{ display:flex; align-items:center; gap:10px; margin:0; }
.field.compact{ margin:0; flex:1; min-width:220px; }
.label{ display:block; font-size:12px; color:var(--muted); margin:0 0 6px; }
.field.inline .label{ margin:0; min-width:74px; }

input[type="text"], input[type="search"], select{
  width:100%;
  padding:10px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  font-size:14px;
}

.grid2{ display:grid; grid-template-columns:1fr 1fr; gap:10px; }

.check{ display:flex; align-items:flex-start; gap:8px; margin:8px 0; font-size:13px; }
.check.inline{ display:inline-flex; margin-right:10px; }
.check input{ margin-top:2px; }

.seg{ display:flex; gap:6px; }
.seg.small .seg-btn{ padding:8px 10px; }
.seg-btn{
  flex:1;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  padding:10px;
  cursor:pointer;
  font-size:13px;
}
.seg-btn.active{ background:#111827; color:#fff; border-color:#111827; }

.btn-primary{
  border:none;
  background:var(--btn);
  color:var(--btnfg);
  padding:12px 14px;
  border-radius:12px;
  cursor:pointer;
  font-size:14px;
  width:100%;
}
.btn-primary:disabled{ opacity:.45; cursor:not-allowed; }

.btn-mini,
.csvtidy-sample-buttons button{
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  padding:9px 11px;
  cursor:pointer;
  font-size:12.5px;
}

.hint{ color:var(--muted); font-size:12px; margin-top:8px; }
.search{ max-width:260px; }
.muted{ color:var(--muted); font-size:12px; line-height:1.55; }

.csvtidy-workbench{
  display:grid;
  gap:12px;
  align-items:start;
  margin-top:10px;
  grid-template-columns:minmax(360px,420px) minmax(420px,1fr);
}
.panel-left{ grid-column:1; }
.panel-right{ grid-column:2; }
.panel-mid{ grid-column:1 / -1; }

.empty{
  padding:10px;
  border:1px dashed var(--line);
  border-radius:var(--r);
  background:#fff;
  margin-bottom:10px;
}
.empty-title{ font-weight:700; margin-bottom:6px; }
.empty-desc{ color:var(--muted); font-size:12.5px; line-height:1.5; }
.help summary{ cursor:pointer; font-size:12.5px; color:#374151; }
.help li{ margin:4px 0; color:var(--muted); font-size:12.5px; line-height:1.5; }

.csvtidy-samples{
  margin:12px 0;
  padding:10px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
}
.csvtidy-samples h3{ margin:0 0 6px; font-size:13px; }
.csvtidy-samples p{ margin:6px 0; color:var(--muted); font-size:12.5px; line-height:1.55; }
.csvtidy-sample-buttons{ display:flex; flex-wrap:wrap; gap:8px; margin-top:10px; }

.template-row{ display:flex; gap:8px; align-items:end; flex-wrap:wrap; }
.csvtidy-bulk{ margin-top:10px; }
.bulk-row{ display:flex; gap:8px; flex-wrap:wrap; align-items:stretch; margin-bottom:8px; }
.bulk-row:last-child{ margin-bottom:0; }
.csvtidy-bulk .btn-mini{ flex:1 1 140px; min-width:140px; }

.cols-list{ list-style:none; padding:0; margin:10px 0 0; display:flex; flex-direction:column; gap:8px; }
.col-item{ background:#fff; border:1px solid var(--line); border-radius:12px; padding:10px; }
.col-top{ display:flex; align-items:center; justify-content:space-between; gap:8px; }
.col-top-right{ display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.drag{ font-family:ui-monospace, Menlo, Monaco, Consolas, "Courier New", monospace; color:var(--muted); cursor:grab; user-select:none; }
.col-meta{ color:var(--muted); font-size:12px; margin-top:6px; }
.col-actions{ display:flex; align-items:center; gap:6px; margin-top:8px; }
.col-toggle{ border:1px solid var(--line); background:#fff; border-radius:999px; padding:2px 8px; font-size:12px; cursor:pointer; }
.mini-check{ display:inline-flex; align-items:center; gap:6px; font-size:12px; color:var(--muted); }
.mini-check input{ transform:translateY(1px); }

.table-wrap{
  overflow:auto;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  max-height:420px;
}
.table{ width:100%; border-collapse:collapse; font-size:12.5px; }
.table th,.table td{ border-bottom:1px solid var(--line); padding:8px; text-align:left; white-space:nowrap; }
.table th{ position:sticky; top:0; background:#fff; z-index:1; font-weight:600; }
.summary{ font-size:12px; color:var(--muted); margin-bottom:8px; }
.err{ margin-top:10px; font-size:12px; color:var(--danger); min-height:16px; }

.map-warn{
  margin-top:10px;
  padding:10px;
  border-radius:14px;
  border:1px solid #f59e0b;
  background:var(--warnbg);
  color:var(--warn);
}
.map-warn-title{ font-weight:800; font-size:13px; display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.map-warn-count{ font-weight:700; font-size:12px; }
.map-warn-body{ margin-top:8px; font-size:12.5px; line-height:1.45; word-break:break-word; }
.map-warn-body .tag{ display:inline-block; padding:2px 8px; border-radius:999px; border:1px solid #f59e0b; margin:2px 6px 2px 0; font-size:12px; background:#fff; }

.csvtidy-output-summary-wrap{ margin-top:12px; }
.csvtidy-output-summary-wrap h2,
.csvtidy-note h2,
.csvtidy-faq h2{ margin:0 0 8px; font-size:15px; }
.csvtidy-help,
.csvtidy-note li,
.csvtidy-faq p{ color:var(--muted); line-height:1.65; font-size:13px; }
.csvtidy-summary-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:8px; margin-top:10px; }
.csvtidy-summary-grid div{ border:1px solid var(--line); border-radius:10px; padding:10px; background:#fff; }
.csvtidy-summary-grid strong,
.csvtidy-summary-grid span{ display:block; }
.csvtidy-summary-grid span{ margin-top:4px; color:#374151; }
.csvtidy-warning{ margin-top:12px; border:1px solid #f59e0b; background:var(--warnbg); color:var(--warn); border-radius:10px; padding:10px; line-height:1.6; }

.csvtidy-export{
  margin-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:#fff;
}
.export-left{ flex:1; }
.export-right{ width:260px; }

.csvtidy-note,
.csvtidy-faq,
.csvtidy-related-links{ margin-top:18px; }
.csvtidy-faq details{ border-top:1px solid var(--line); padding:10px 0; }
.csvtidy-faq details:first-of-type{ border-top:0; }
.csvtidy-faq summary{ cursor:pointer; font-weight:600; }
.csvtidy-related-links{ font-size:14px; line-height:1.7; }

.nw-donate{ margin:14px 0 8px; background:#fff; }
.nw-donate-text{ margin:0 0 10px; font-size:13px; color:var(--muted); }
.nw-donate-links{ display:flex; gap:10px; flex-wrap:wrap; }
.nw-donate-links a{ display:inline-block; border:1px solid var(--line); border-radius:999px; padding:8px 12px; text-decoration:none; background:var(--card); }

.nw-footer{ border-top:1px solid var(--line); padding:14px 12px 18px; color:var(--muted); font-size:12px; }
.nw-footer-line{ margin:6px 0 0; }

.busy-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.45);
  display:flex;
  align-items:center;
  justify-content:center;
  z-index:9999;
  padding:16px;
}
.busy-card{
  width:min(520px,100%);
  background:#111827;
  color:#fff;
  border-radius:16px;
  padding:14px;
  display:flex;
  gap:12px;
  align-items:center;
  box-shadow:0 12px 40px rgba(0,0,0,.35);
}
.busy-spinner{
  width:22px;
  height:22px;
  border-radius:999px;
  border:3px solid rgba(255,255,255,.25);
  border-top-color:rgba(255,255,255,.95);
  animation:spin .9s linear infinite;
  flex:0 0 auto;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.busy-text{ min-width:0; }
#busyTitle{ font-weight:700; font-size:14px; line-height:1.2; }
.busy-detail{ margin-top:2px; font-size:12.5px; opacity:.9; line-height:1.35; word-break:break-word; }

@media (min-width:1320px){
  .nw-main{ max-width:1240px; }
  .csvtidy-workbench{ grid-template-columns:minmax(340px,380px) minmax(360px,1fr) minmax(380px,440px); }
  .panel-left{ grid-column:1; }
  .panel-mid{ grid-column:2; }
  .panel-right{ grid-column:3; }
}

@media (max-width:768px){
  .nw-main{ max-width:100%; }
  .csvtidy-steps,
  .csvtidy-workbench,
  .csvtidy-summary-grid{ grid-template-columns:1fr; }
  .panel-left,
  .panel-mid,
  .panel-right{ grid-column:1 / -1; }
  .export-right{ width:220px; }
  .csvtidy-bulk .btn-mini{ flex:1 1 160px; min-width:160px; }
}

@media (max-width:480px){
  .nw-main{ padding:10px; }
  .grid2{ grid-template-columns:1fr; }
  .panel-head{ flex-direction:column; align-items:stretch; }
  .search{ max-width:100%; }
  .seg{ flex-direction:column; }
  .csvtidy-export{ flex-direction:column; align-items:stretch; }
  .export-right{ width:100%; }
  .csvtidy-sample-buttons{ flex-direction:column; }
  .csvtidy-sample-buttons button{ width:100%; }
  .csvtidy-bulk .btn-mini{ flex:1 1 calc(50% - 8px); min-width:calc(50% - 8px); padding:12px; font-size:13px; }
  .col-item{ padding:8px; }
  .col-item.collapsed .col-body{ display:none; }
  .col-item.collapsed .col-aux .mini-check{ display:none; }
}

@media (max-width:360px){
  input[type="text"], input[type="search"], select{ padding:9px; }
  .btn-primary{ padding:12px; }
  .table{ font-size:12px; }
  .csvtidy-bulk .btn-mini{ flex:1 1 100%; min-width:100%; }
}