:root{
  --bg:#f5f6f8; --card:#fff; --line:#e2e5ea; --text:#20242b; --muted:#7b828d;
  --pri:#2f6bff; --pri-d:#1e51d6; --ok:#0f9d58; --danger:#e5484d;
}
*{box-sizing:border-box}
body{
  margin:0;padding:0 16px 64px;background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif;
  font-size:14px;line-height:1.55;
}
header{max-width:1100px;margin:0 auto;padding:28px 0 12px}
h1{margin:0 0 6px;font-size:24px;letter-spacing:-.4px}
.sub{margin:0;color:var(--muted);font-size:13px}
.tabs{max-width:1100px;margin:16px auto 0;display:flex;gap:6px;flex-wrap:wrap}
.tab{
  border:1px solid var(--line);background:#fff;color:var(--muted);
  padding:9px 14px;border-radius:9px 9px 0 0;cursor:pointer;font-size:13px;font-weight:600;
}
.tab.active{color:var(--text);border-bottom-color:#fff;background:#fff;box-shadow:0 -1px 0 var(--pri) inset}
.panel{display:none;max-width:1100px;margin:0 auto}
.panel.active{display:block}

.step{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin:12px 0}
h2{margin:0 0 8px;font-size:16px;letter-spacing:-.3px}
.desc{margin:0 0 12px;color:var(--muted);font-size:13px}
.hint2{margin:8px 0 0;color:var(--muted);font-size:12px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.arrow{color:var(--muted)}
.muted{color:var(--muted)}

button,.btn{
  border:1px solid var(--line);background:#fff;color:var(--text);
  padding:8px 14px;border-radius:8px;cursor:pointer;font-size:13px;font-family:inherit;
}
button:hover,.btn:hover{border-color:#c9ced6}
button.primary{background:var(--pri);border-color:var(--pri);color:#fff;font-weight:600}
button.primary:hover{background:var(--pri-d)}
button.primary:disabled{background:#c3cbd8;border-color:#c3cbd8;cursor:not-allowed}
button.ghost{background:#f7f8fa}
button.danger,.danger{color:var(--danger)}
button.mini{padding:2px 7px;font-size:12px;line-height:1.5}
.chk{display:flex;align-items:center;gap:5px;font-size:13px;color:var(--muted);cursor:pointer}
.hint{display:flex;align-items:center;gap:5px;font-size:13px;color:var(--muted)}
input[type=text],input[type=number],select{
  border:1px solid var(--line);border-radius:8px;padding:7px 9px;font-size:13px;
  font-family:inherit;background:#fff;color:var(--text);max-width:100%;
}
input[type=text]{min-width:150px}
input.num{width:64px}
select.warn{border-color:#f0b429;background:#fffaf0}
.badge{font-size:11px;font-weight:600;color:var(--muted);background:#eef0f3;border-radius:20px;padding:2px 9px;vertical-align:middle}
.badge.ok{color:#fff;background:var(--ok)}
.cnt{font-size:12px;color:var(--muted)}
.fname{font-weight:600;font-size:13px}

.drop{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  border:2px dashed #ccd2dc;border-radius:12px;padding:28px 16px;text-align:center;cursor:pointer;background:#fafbfc;
}
.drop:hover,.drop.over{border-color:var(--pri);background:#f3f7ff}
.drop-t{font-weight:600}
.drop-s{font-size:12px;color:var(--muted)}
.filebar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:10px;
  background:#f7f8fa;border:1px solid var(--line);border-radius:9px;padding:9px 12px}

.tablewrap{overflow-x:auto;max-height:420px;overflow-y:auto;border:1px solid var(--line);border-radius:9px}
.tablewrap:empty,.tablewrap table:empty{border:0}
table.grid{width:100%;border-collapse:collapse;font-size:13px;background:#fff}
table.grid th,table.grid td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:middle}
table.grid thead th{background:#f1f3f6;font-weight:600;position:sticky;top:0;z-index:1;white-space:nowrap}
table.grid td.act{white-space:nowrap;text-align:center}
table.grid td.empty{text-align:center;color:var(--muted);padding:18px}
table.map input[type=text],table.map select{width:100%}
table.map td{padding:5px 7px}

ol.help,ul.help{margin:0;padding-left:20px;color:#3a4250}
ol.help li,ul.help li{margin:5px 0}
footer{max-width:1100px;margin:28px auto 0;font-size:13px}
footer a{color:var(--muted);text-decoration:none}
footer a:hover{color:var(--pri)}

.combine{display:flex;flex-direction:column;gap:4px}
.combine select[multiple]{padding:3px;font-size:12px}
.combine input[type=text]{width:100%}
.combine .hint2{margin:0;font-size:11px}

.checklist{max-height:230px;overflow-y:auto;border:1px solid var(--line);border-radius:9px;background:#fff;padding:6px 8px}
.checklist .item{display:flex;align-items:center;gap:8px;padding:4px 4px;color:var(--text);border-bottom:1px solid #f1f3f6}
.checklist .item:last-child{border-bottom:0}
.checklist .item span:first-of-type{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.checklist .empty{color:var(--muted);text-align:center;margin:14px 0}
table.grid td.wrap{white-space:normal;word-break:break-all}
.cnt.warn{color:#b26a00;font-weight:600}