:root{--bg:#f4f6fb;--card:#fff;--ink:#1c2233;--muted:#6b7385;--accent:#4f46e5;--line:#dfe3ee;color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}.app{max-width:1180px;margin:0 auto;padding:16px}.top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}h1{margin:0;font-size:1.4rem}nav,.seg{gap:6px;display:flex}button{font:inherit;border:1px solid var(--line);background:var(--card);cursor:pointer;border-radius:10px;padding:8px 14px}button.active{background:var(--accent);color:#fff;border-color:var(--accent)}button.primary{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}button:disabled{opacity:.5;cursor:not-allowed}.grid{grid-template-columns:1fr 1fr;align-items:start;gap:16px;display:grid}form,.preview,.history{background:var(--card);border-radius:16px;padding:16px;box-shadow:0 2px 12px #1e28500f}aside{flex-direction:column;gap:16px;display:flex}fieldset{border:1px solid var(--line);border-radius:12px;flex-direction:column;gap:8px;margin:0 0 12px;padding:10px 12px;display:flex}legend{padding:0 6px;font-weight:600}label{color:var(--muted);flex-direction:column;gap:4px;margin-bottom:8px;font-size:.85rem;display:flex}label.check{flex-direction:row;align-items:center}fieldset label{margin-bottom:0}input,select,textarea{font:inherit;border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:8px;padding:8px 10px}textarea{resize:vertical;min-height:90px}.row3{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.row2{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.item{grid-template-columns:3fr 1fr 1.4fr 1fr auto;gap:6px;display:grid}.parties{grid-template-columns:1fr 1fr;gap:12px;margin:12px 0;font-size:.9rem;display:grid}table{border-collapse:collapse;width:100%;font-size:.85rem}th,td{border-bottom:1px solid var(--line);text-align:right;padding:6px 4px}th:first-child,td:first-child{text-align:left}.sum{text-align:right;margin-top:12px;line-height:1.6}.grand{font-size:1.15rem;font-weight:700}.muted{color:var(--muted);font-size:.85rem}.error{color:#b91c1c}.hist{gap:6px;margin-bottom:6px;display:flex}.hist button:first-child{text-align:left;flex:1}.qr{flex-direction:column;align-items:center;display:flex}.qr canvas{max-width:100%;height:auto!important}footer{text-align:center;color:var(--muted);margin-top:24px;font-size:.8rem}@media (width<=820px){.grid,.row3{grid-template-columns:1fr}.item{grid-template-columns:1fr 1fr}.item input:first-child{grid-column:1/-1}}