:root{--w:760px;--ink:#16202e;--muted:#52606f;--line:#ccd6e0;--brand:#1f4e79;--brand-dark:#163a5a;--soft:#e8f1f8;--warn-bg:#fff4e5;--warn-line:#e8a33d;--danger:#a11b1b}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#f5f8fb;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;line-height:1.7}
main{max-width:var(--w);margin:0 auto;padding:18px 16px 36px}
a{color:#0b5cad}
a:hover{text-decoration:underline}
:focus-visible{outline:3px solid #0b5cad;outline-offset:2px}
h1{font-size:1.55rem;line-height:1.35;margin:.2em 0 .3em}
h2{font-size:1.15rem;margin:1.5em 0 .45em}
h3{font-size:1rem;margin:1.1em 0 .3em}
.updated{font-size:.82rem;color:var(--muted);margin:0 0 1.1em}
.lead{color:#3d4c5c}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.req{color:var(--danger);font-size:.85rem;font-weight:600}
nav.chrome{background:#fff;border-bottom:1px solid var(--line)}
nav.chrome .in{max-width:var(--w);margin:0 auto;padding:10px 16px;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:baseline}
nav.chrome .brand{font-weight:800;color:var(--ink);text-decoration:none}
nav.chrome a{color:#0b5cad;text-decoration:none;font-size:.92rem}
nav.chrome a[aria-current=page]{color:var(--ink);font-weight:800;text-decoration:underline}
footer.chrome{margin-top:32px;border-top:1px solid var(--line);background:#fff}
footer.chrome .in{max-width:var(--w);margin:0 auto;padding:16px;font-size:.85rem;color:var(--muted)}
footer.chrome .disc{margin:0 0 4px}
footer.chrome section{margin-top:10px}
footer.chrome h2{font-size:.86rem;margin:0 0 4px;color:var(--ink)}
footer.chrome ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 12px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:14px 0}
.card h2:first-child{margin-top:0}
.status .dday{font-size:2rem;font-weight:900;color:var(--brand);margin:.1em 0;line-height:1.1}
.badge{display:inline-block;background:var(--soft);color:var(--brand-dark);border:1px solid #9dc3df;border-radius:999px;padding:1px 9px;font-size:.8rem;font-weight:700;margin-left:6px;white-space:nowrap}
.tool-card label,.tool-card legend{display:block;font-weight:700;font-size:.92rem;margin-top:10px}
.tool-card input,.tool-card select,.tool-card textarea{width:100%;min-height:44px;padding:9px 11px;font:inherit;border:1px solid #bcc9d6;border-radius:9px;background:#fff;box-sizing:border-box;margin-top:4px}
.tool-card textarea{min-height:72px;resize:vertical}
.tool-card fieldset{border:1px solid var(--line);border-radius:9px;padding:8px 12px 12px;margin:14px 0 0}
.tool-card legend{padding:0 4px}
.form-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:12px}
button,.file-label{min-height:44px;padding:9px 14px;font:inherit;font-weight:700;border-radius:9px;border:1px solid var(--brand);background:#fff;color:var(--brand);cursor:pointer;display:inline-flex;align-items:center}
button.primary{background:var(--brand);color:#fff}
button:disabled{opacity:.5;cursor:not-allowed}
button.danger{border-color:var(--danger);color:var(--danger)}
.file-label{font-size:.92rem;gap:8px;max-width:100%;flex-wrap:wrap}
.file-label input{width:auto;max-width:100%;min-height:0;margin:0}
a.cta{display:inline-block;min-height:44px;padding:9px 16px;border-radius:9px;background:var(--brand);color:#fff;font-weight:700;text-decoration:none;border:1px solid var(--brand-dark)}
a.cta.secondary{background:#fff;color:var(--brand)}
.tool-err{color:var(--danger);min-height:1.2em;margin:8px 0 0;font-size:.92rem}
.warn{background:var(--warn-bg);border:1px solid var(--warn-line);border-radius:9px;padding:9px 12px;font-size:.92rem}
.result-card{background:#fff;border:2px solid var(--brand);border-radius:12px;padding:14px 16px;margin:14px 0}
.result-card h2{margin-top:0}
.result-grid{display:grid;gap:10px}
@media(min-width:560px){.result-grid{grid-template-columns:1fr 1fr}}
.result-grid>div{border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.result-label{display:block;font-size:.82rem;color:var(--muted)}
.result-date{display:inline-block;font-size:1.22rem;font-variant-numeric:tabular-nums}
.result-line{margin:.5em 0}
.big{font-size:1.35rem;font-weight:800;color:var(--brand-dark)}
.action-line{background:var(--soft);border-radius:9px;padding:9px 12px;margin:.9em 0 0;font-weight:600}
.progress{background:#e3ebf3;height:10px;border-radius:999px;overflow:hidden;margin:8px 0 12px}
.progress span{display:block;height:100%;background:var(--brand);width:0;transition:width .2s}
.check-list{display:grid;gap:2px}
.check-item{list-style:none;border-bottom:1px solid #eef2f7}
.check-item:last-child{border-bottom:0}
.check-item label{display:grid;grid-template-columns:24px 1fr;gap:4px 10px;align-items:center;padding:9px 2px;font-weight:600;cursor:pointer;margin:0}
.check-item input{width:22px;height:22px;accent-color:var(--brand);margin:0}
.check-item .c-note{grid-column:2;font-size:.82rem;color:var(--muted);font-weight:400}
#checklist-list ul{list-style:none;padding:0;margin:0}
.phase h3{margin:.6em 0 .2em}
ul.check{padding-left:18px}
ul.check li{margin:.35em 0}
.grid{display:grid;gap:10px;margin-top:8px}
@media(min-width:560px){.grid{grid-template-columns:1fr 1fr}}
.tile{display:block;border:1px solid var(--line);border-radius:10px;padding:11px 13px;text-decoration:none;color:inherit;background:#fff}
.tile:hover{border-color:var(--brand)}
.tile strong{display:block}
.tile span{font-size:.85rem;color:var(--muted)}
.case-list{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.case{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.case-head{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.case-head .badge{margin-left:auto}
.case p{margin:.35em 0}
.case-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:8px}
.case-actions select{min-height:38px;padding:4px 8px;font:inherit;border:1px solid var(--line);border-radius:8px;background:#fff}
.case-actions a{font-size:.9rem;padding:8px 10px;border:1px solid var(--line);border-radius:8px;text-decoration:none;background:#fff}
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:.9rem;background:#fff}
th,td{border:1px solid var(--line);padding:6px 8px;text-align:left;vertical-align:top}
thead th{background:var(--soft)}
.nowrap{white-space:nowrap}
.cite{margin:12px 0;padding:10px 14px;border-left:4px solid var(--brand);background:#fff;border-radius:0 8px 8px 0}
.cite p{margin:0 0 6px}
.cite footer{font-size:.8rem;color:var(--muted)}
.src-list{font-size:.85rem;color:var(--muted);padding-left:18px}
.src-list li{margin:.25em 0;overflow-wrap:anywhere}
.related ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 14px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 12px;margin:8px 0}
.faq summary{cursor:pointer;font-weight:700;min-height:32px}
.letter-sheet{background:#fff;border:1px solid #98a6b5;border-radius:4px;padding:22px 24px;margin:16px 0;font-size:1rem;line-height:1.75}
.letter-sheet header{border-bottom:2px solid var(--ink);padding-bottom:8px;margin-bottom:12px}
.letter-sheet h2{margin:0 0 6px;font-size:1.35rem;text-align:center}
.letter-sheet h3{font-size:1rem;margin:1em 0 .3em}
.letter-sheet p{margin:.25em 0}
.letter-recipient{font-weight:700}
.letter-sheet .cites{font-size:.86rem;padding-left:18px}
.disclaimer{border-top:1px dashed var(--line);margin-top:14px;padding-top:8px;font-size:.85rem;color:var(--muted)}
@media print{
  nav.chrome,footer.chrome,main>h1,.updated,.lead,.form-actions,.faq,.related,.sources,.card,.tool-card,#letter-form,#dl-result .muted,.no-print{display:none!important}
  body{background:#fff}
  main{max-width:none;padding:0}
  #letter-output{display:block!important}
  .letter-sheet{border:0;padding:0;margin:0;font-size:12pt;line-height:1.4;page-break-inside:avoid}
  .letter-sheet header{padding-bottom:4px;margin-bottom:6px}
  .letter-sheet h2{font-size:15pt;margin:0 0 4px}
  .letter-sheet h3{font-size:12pt;margin:.7em 0 .2em;page-break-after:avoid}
  .letter-sheet p{margin:.12em 0}
  .letter-sheet .cites{margin-top:.2em;margin-bottom:.2em;padding-left:16px}
  .disclaimer{margin-top:6px;padding-top:4px;font-size:9pt}
  @page{size:A4;margin-top:15mm;margin-right:15mm;margin-bottom:15mm;margin-left:15mm}
}