:root{--bg:#fff;--fg:#1d2230;--mut:#5a6275;--line:#d9dde7;--acc:#1b5fd1;--soft:#f4f6fb}
@media (prefers-color-scheme:dark){:root{--bg:#14171f;--fg:#e8ebf2;--mut:#a3abbd;--line:#2c3140;--acc:#7fb0ff;--soft:#1c212c}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.65 "Noto Sans Devanagari","Nirmala UI","Mangal",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--acc)}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.site{border-bottom:1px solid var(--line);background:var(--soft)}
header.site .wrap{display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;padding:10px 16px}
header.site a.brand{font-weight:700;text-decoration:none;color:var(--fg)}
nav a{font-size:15px;margin-right:12px}
h1{font-size:1.7rem;line-height:1.3;margin:22px 0 8px}
h2{font-size:1.2rem;margin:0 0 10px}
.lead-p{color:var(--mut);margin:0 0 18px}
.tool-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px;align-items:start}
@media (max-width:820px){.tool-grid{grid-template-columns:1fr}}
.form{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:14px}
.field{display:block;margin-bottom:10px}
.field span{display:block;font-size:14px;color:var(--mut);margin-bottom:3px}
input,select,textarea{width:100%;font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:7px;background:var(--bg);color:var(--fg)}
.item-row{display:grid;grid-template-columns:2fr 1fr 1fr;gap:8px}
.item-row .field{margin-bottom:6px}
.btn{font:inherit;padding:9px 16px;border-radius:8px;border:1px solid var(--acc);background:var(--acc);color:#fff;cursor:pointer}
.btn.ghost{background:transparent;color:var(--acc)}
.small{font-size:14px;color:var(--mut)}
.preview{background:#fff;color:#111;border:1px solid var(--line);border-radius:6px;padding:20px;min-height:280px}
.doc h2{text-align:center;font-size:1.25rem;margin:0 0 8px;color:#111}
.doc h3{font-size:1.05rem;margin:8px 0;color:#111}
.doc .center{text-align:center}
.doc .meta{display:flex;justify-content:space-between;gap:12px;margin:10px 0;font-size:15px}
.doc .lead{margin:14px 0;font-size:16px;line-height:1.9}
.doc .blank{color:#9aa1b3}
.doc .small{color:#444}
.doc .pre{white-space:pre-line}
.doc .signrow{display:flex;justify-content:space-between;align-items:flex-end;margin-top:46px}
.doc .sign{border-top:1px solid #111;padding-top:4px;min-width:170px;text-align:center;font-size:14px}
.doc .stamp{border:1px dashed #888;width:90px;height:56px;font-size:11px;color:#666;display:flex;align-items:center;justify-content:center;text-align:center}
table.items{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0}
table.items th,table.items td{border:1px solid #bbb;padding:5px 6px;text-align:left;color:#111}
table.items td.n{text-align:right}
.total,.totals{text-align:right;margin:6px 0}
.pack{margin:22px 0;padding:12px 14px;border:1px dashed var(--line);border-radius:10px;background:var(--soft);font-size:15px}
section.guide{margin:30px 0}
section.guide ul{padding-left:20px}
details{border:1px solid var(--line);border-radius:8px;padding:8px 12px;margin:8px 0}
summary{cursor:pointer;font-weight:600}
footer.site{border-top:1px solid var(--line);margin-top:40px;padding:18px 0;color:var(--mut);font-size:14px}
.notice{border-left:4px solid var(--acc);background:var(--soft);padding:10px 14px;border-radius:6px;margin:14px 0}
@media print{
  @page{size:A4;margin:14mm}
  body{background:#fff}
  header.site,footer.site,.form,h1,.lead-p,section.guide,.pack,.notice,nav,.ph,.related{display:none!important}
  .tool-grid{display:block}
  .preview{border:none;padding:0}
}
.preview{overflow-x:auto}
.form,.preview{min-width:0}