:root{--bg:#f4f7fb;--card:#fff;--text:#172033;--muted:#64748b;--line:#dce3ee;--accent:#2563eb;--accent2:#1d4ed8;--soft:#eff6ff}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:Arial,"Noto Sans Devanagari",sans-serif;color:var(--text)}
.app{max-width:1250px;margin:auto;padding:22px 16px 30px}.hero{background:linear-gradient(135deg,#0f172a,#1e3a8a);color:#fff;border-radius:22px;padding:25px;display:flex;justify-content:space-between;gap:20px;align-items:center}.brand{display:flex;gap:16px;align-items:center}.logo{width:54px;height:54px;border-radius:15px;background:#fff;color:#1d4ed8;display:grid;place-items:center;font-size:28px;font-weight:800}.eyebrow{font-size:11px;letter-spacing:1.5px;opacity:.75}.hero h1{margin:3px 0 5px;font-size:28px}.hero p{margin:0;opacity:.84;max-width:720px;line-height:1.5}.lang{display:flex;background:#ffffff1c;border:1px solid #ffffff33;padding:4px;border-radius:12px}.langBtn{border:0;background:transparent;color:#fff;padding:10px 13px;border-radius:9px;cursor:pointer;font-weight:700}.langBtn.active{background:#fff;color:#172033}
.layout{display:grid;grid-template-columns:minmax(330px,.9fr) minmax(360px,1.1fr);gap:18px;margin-top:18px}.panel{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:20px}.sectionHead{display:flex;gap:12px;align-items:flex-start;margin-bottom:18px}.sectionHead.second{margin-top:25px}.step{width:32px;height:32px;flex:none;border-radius:50%;background:var(--soft);color:var(--accent);display:grid;place-items:center;font-weight:800}.sectionHead h2{font-size:18px;margin:2px 0 4px}.sectionHead p{margin:0;color:var(--muted);font-size:13px;line-height:1.4}
label{display:block;font-size:13px;font-weight:700;margin:12px 0 7px}select,input,textarea{width:100%;border:1px solid var(--line);border-radius:11px;padding:12px 13px;background:#fff;color:var(--text);font-size:15px;outline:none}select:focus,input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px #2563eb18}select:disabled{background:#f1f5f9;color:#94a3b8}.grid{display:grid;grid-template-columns:1fr 1fr;gap:2px 12px}.field.full{grid-column:1/-1}.actions{display:flex;gap:10px;margin-top:20px}.actions button,.previewActions button{min-height:44px;border-radius:11px;padding:10px 16px;font-weight:800;cursor:pointer;border:1px solid var(--line)}.primary{background:var(--accent);color:#fff;border-color:var(--accent)!important;flex:1}.primary:hover{background:var(--accent2)}.secondary{background:#fff}.status{min-height:20px;margin-top:10px;font-size:13px}.status.ok{color:#15803d}.status.error{color:#b91c1c}
.previewTop{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:14px}.previewTop h2{font-size:18px;margin:5px 0}.tag{font-size:10px;letter-spacing:1.2px;font-weight:800;color:var(--accent)}.previewActions{display:flex;gap:7px}.previewActions button{background:#fff;min-height:40px;padding:8px 12px}.paper{min-height:640px;border:1px solid #e2e8f0;border-radius:12px;background:#fff;padding:42px 44px;box-shadow:0 8px 30px #0f172a0a}.paperEmpty{min-height:540px;display:grid;place-content:center;text-align:center;color:var(--muted)}.emptyIcon{font-size:38px;color:var(--accent);margin-bottom:8px}.paperEmpty h3{margin:0 0 5px;color:var(--text)}.paperEmpty p{margin:0}.hidden{display:none}.letter{font-family:Georgia,"Noto Serif Devanagari",serif;font-size:16px;line-height:1.75}.letterHeader{text-align:center;font-weight:800;font-size:20px;border-bottom:1px solid #ddd;padding-bottom:15px;margin-bottom:25px}.letter p{margin:0 0 18px}.sign{margin-top:38px;display:flex;justify-content:space-between;gap:25px}.sign>div{max-width:65%;word-break:break-word}.sign>div:last-child{text-align:right;max-width:35%}footer{text-align:center;color:var(--muted);font-size:12px;margin-top:15px}
@media(max-width:850px){.layout{grid-template-columns:1fr}.hero{align-items:flex-start;flex-direction:column}.lang{align-self:flex-start}.paper{min-height:520px;padding:28px 24px}}
@media(max-width:520px){.app{padding:10px}.hero,.panel{border-radius:15px}.hero{padding:18px}.hero h1{font-size:22px}.grid{grid-template-columns:1fr}.field.full{grid-column:auto}.paper{padding:24px 18px}.sign{flex-direction:column}.sign>div,.sign>div:last-child{max-width:100%;text-align:left}.previewTop{align-items:flex-start;flex-direction:column}.previewActions{width:100%}.previewActions button{flex:1}.actions{flex-direction:column}}
@media print{body{background:#fff}.app{max-width:none;padding:0}.hero,.controls,.previewActions,footer,.previewTop .tag{display:none!important}.layout{display:block;margin:0}.previewPanel{border:0;padding:0}.previewTop{display:block}.previewTop h2{display:none}.paper{border:0;box-shadow:none;padding:10mm;min-height:auto}.letter{font-size:15px}}