:root{
  --bg:#F6F5F1; --surface:#FFFFFF; --ink:#16181D; --muted:#5B5F69; --line:#E2E0DA;
  --brand:#1F7A4D; --brand-ink:#FFFFFF; --brand-soft:#E6F3EB; --warn:#B4441B; --warn-soft:#FBEAE2;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --body:"Pretendard","IBM Plex Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#121315; --surface:#1B1D20; --ink:#EEEDE8; --muted:#A3A6AE; --line:#2E3136;
  --brand:#4CC38A; --brand-ink:#0D1A13; --brand-soft:#173327; --warn:#F09A6E; --warn-soft:#3A2116; color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--body);word-break:keep-all;overflow-wrap:anywhere}
a{color:inherit}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header.top{border-bottom:1px solid var(--line);background:var(--surface)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.logo{font-weight:800;font-size:18px;text-decoration:none;display:flex;align-items:center;gap:8px;letter-spacing:-.02em}
.logo i{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--brand);color:var(--brand-ink);font-style:normal;font-size:15px}
nav a{font-size:14px;color:var(--muted);text-decoration:none;margin-left:16px}
nav a:hover{color:var(--ink)}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.25;letter-spacing:-.03em;margin:0}
h1 em{font-style:normal;color:var(--brand)}
h2{font-size:22px;letter-spacing:-.02em;margin:0 0 12px}
h3{font-size:17px;margin:0 0 6px}
.lead{font-size:18px;color:var(--muted);margin:14px 0 0;max-width:640px}
.hero{padding:44px 0 26px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.badges span{font-size:13px;font-weight:600;background:var(--brand-soft);color:var(--brand);border-radius:999px;padding:5px 12px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px}
.drop{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;min-height:220px;border:2px dashed var(--line);border-radius:18px;background:var(--surface);padding:28px;transition:border-color .15s,background .15s}
.drop.over{border-color:var(--brand);background:var(--brand-soft)}
.drop.busy{opacity:.6}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer}
.drop .big{font-size:20px;font-weight:700}
.drop .ic{font-size:36px;line-height:1}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
button,.btn{font:inherit;font-weight:700;border-radius:12px;min-height:46px;padding:0 18px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}
button.primary,.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
button:disabled{opacity:.45;cursor:not-allowed}
button:focus-visible,.btn:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
.linkbtn{background:none;border:0;min-height:0;padding:0;font-weight:600;color:var(--brand);text-decoration:underline;cursor:pointer}
.note{font-size:14px;color:var(--muted);margin:0}
.err{background:var(--warn-soft);color:var(--warn);border-radius:14px;padding:14px 16px;margin-top:14px}
.work{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.filebar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.filebar b{font-family:var(--mono);font-size:14px}
.sum{display:flex;align-items:stretch;gap:12px;flex-wrap:wrap}
.kpi{flex:1;min-width:120px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 18px}
.kpi span{font-size:13px;color:var(--muted);font-weight:600}
.kpi b{display:block;font-family:var(--mono);font-size:38px;line-height:1.1;font-weight:600}
.kpi b small{font-size:16px;margin-left:2px;font-family:var(--body)}
.kpi.ok{border:2px solid var(--brand)}.kpi.ok b,.kpi.ok span{color:var(--brand)}
.kpi.warn b,.kpi.warn span{color:var(--warn)}
.arrow{display:flex;align-items:center;font-size:28px;color:var(--brand);font-weight:800}
.sum .note{flex-basis:100%}
details.map{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:0 18px}
details.map summary{cursor:pointer;font-weight:700;padding:14px 0}
.mapgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;padding-bottom:18px}
.mapgrid label{display:flex;flex-direction:column;gap:4px;font-size:13px;font-weight:600;color:var(--muted)}
.mapgrid em{font-style:normal;color:var(--warn);font-size:11px}
select{font:inherit;height:42px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);padding:0 8px;min-width:0}
.opts{display:flex;flex-wrap:wrap;gap:18px;align-items:center;font-size:15px}
.opts label{display:flex;align-items:center;gap:8px}
.opts input[type=checkbox]{width:20px;height:20px;accent-color:var(--brand)}
.tablebox{overflow:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface);max-height:520px}
table{border-collapse:collapse;width:100%;font-size:14px}
th{position:sticky;top:0;background:var(--brand);color:var(--brand-ink);text-align:left;padding:9px 10px;white-space:nowrap;font-weight:700}
td{padding:8px 10px;border-bottom:1px solid var(--line);white-space:nowrap;max-width:320px;overflow:hidden;text-overflow:ellipsis}
td.num{text-align:right;font-family:var(--mono)}
tr.mrg td{background:var(--brand-soft)}
.badbox{border:1px solid var(--warn);background:var(--warn-soft);color:var(--ink);border-radius:14px;padding:14px 18px}
.badbox h3{color:var(--warn)}
.badbox ul{margin:6px 0 0;padding-left:20px;font-size:14px}
.dlbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.dlbar button{min-height:54px;font-size:17px;padding:0 26px}
section.sec{padding:44px 0 0}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.steps{counter-reset:s;list-style:none;padding:0;margin:0;display:grid;gap:10px}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px 14px 54px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:16px;top:14px;width:26px;height:26px;border-radius:50%;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-weight:800;font-size:14px}
details.faq{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0 16px;margin-bottom:8px}
details.faq summary{cursor:pointer;font-weight:700;padding:14px 0}
details.faq p{margin:0 0 14px;color:var(--muted)}
.cta{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;background:var(--ink);color:var(--bg);border-radius:20px;padding:26px 28px}
.cta p{margin:4px 0 0;opacity:.8}
.cta .btn{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.tool{display:flex;flex-direction:column;gap:6px;text-decoration:none}
.tool .tag{font-size:12px;font-weight:700;color:var(--brand)}
.tool.soon{opacity:.6}
footer{margin-top:60px;border-top:1px solid var(--line);padding:26px 0 40px;font-size:13px;color:var(--muted)}
footer a{margin-right:14px}
.doc{max-width:760px;padding:40px 20px}
.doc h1{font-size:30px;margin-bottom:16px}
.doc h2{font-size:19px;margin-top:28px}
[hidden]{display:none!important}
.guide pre{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:12px 14px;overflow:auto;font-family:var(--mono);font-size:14px}
.guide code{font-family:var(--mono);font-size:.92em;background:var(--brand-soft);padding:1px 6px;border-radius:6px}
.guide pre code{background:none;padding:0}
.guide table{margin:8px 0;border:1px solid var(--line);border-radius:12px;overflow:hidden;display:block;overflow-x:auto}
.guide th{position:static}
.guide li{margin:4px 0}
.guide .sec .grid3{grid-template-columns:1fr}
.cols{display:flex;flex-direction:column;gap:8px}
.colrow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:8px 10px}
.colrow .src{font-size:12px;font-weight:700;color:var(--muted);min-width:110px}
.colrow input[type=text]{flex:1;min-width:120px;height:38px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);padding:0 10px;font:inherit}
.colrow input[type=checkbox]{width:20px;height:20px;accent-color:var(--brand)}
.colrow button{min-height:38px;padding:0 12px;font-weight:600}
.nudge{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;border:2px solid var(--brand);background:var(--brand-soft);border-radius:16px;padding:16px 18px}
.nudge p{margin:4px 0 0;font-size:15px;color:var(--ink)}
.nav-cta{color:var(--brand)!important;font-weight:700}
.flist{margin:0;padding-left:20px;font-size:15px}
.flist li{margin:4px 0}
.chks{display:flex;flex-wrap:wrap;gap:8px;padding-bottom:16px}
.chk{display:inline-flex;align-items:center;gap:6px;background:var(--bg);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:14px;cursor:pointer}
.chk input{width:18px;height:18px;accent-color:var(--brand)}
tr.dup td{background:var(--warn-soft)}
.cta .row a{font-size:15px}
@media (max-width:680px){header.top .wrap{height:auto;flex-wrap:wrap;padding-top:10px;padding-bottom:6px;gap:6px}nav{width:100%;overflow-x:auto;white-space:nowrap;padding-bottom:4px}nav a{margin:0 14px 0 0}}