:root{--bg:#0f1b2a;--card:#fff;--ink:#1b2430;--mut:#5b6878;--acc:#0b7cc1;--acc2:#e8590c;--line:#dde3ea}
*{box-sizing:border-box}body{margin:0;background:#eef2f6;color:var(--ink);font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:1280px;margin:0 auto;padding:0 20px}
header{background:linear-gradient(135deg,#0f1b2a,#16324f);color:#fff;padding:22px 0;margin-bottom:20px}
header .wrap{display:flex;gap:16px;align-items:center}.logo{font-size:38px}h1{margin:0;font-size:26px;letter-spacing:.2px}.sub{margin:2px 0 0;color:#a9c4de;font-size:14px}
main{display:grid;grid-template-columns:400px 1fr;gap:20px;padding-bottom:30px}.right{display:flex;flex-direction:column;gap:20px;min-width:0}.full{grid-column:1/-1}
.card{background:var(--card);border-radius:12px;padding:18px 20px;box-shadow:0 1px 3px #0001,0 6px 20px #0f1b2a0d}
h2{font-size:13px;text-transform:uppercase;letter-spacing:1.2px;color:var(--acc);margin:4px 0 10px}h2:not(:first-child){margin-top:18px}h3{font-size:15px}
label span,.g3>span{display:block;font-size:13px;color:var(--mut)}
input,select{width:100%;padding:7px 9px;border:1px solid var(--line);border-radius:7px;font:inherit;background:#fafcfe}input:focus,select:focus{outline:2px solid #0b7cc155;border-color:var(--acc)}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}.g3{display:grid;grid-template-columns:1fr 90px 90px;gap:8px;align-items:center}.g3.head span{font-size:12px;color:var(--mut);text-transform:uppercase}
.row span{margin-bottom:3px}.hint{font-size:12.5px;color:var(--mut);margin:6px 0}
.btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 14px;font:inherit;cursor:pointer}button:hover{border-color:var(--acc);color:var(--acc)}
button.pri{background:var(--acc);color:#fff;border-color:var(--acc)}button.pri:hover{color:#fff;filter:brightness(1.1)}
.result{font-size:18px;font-weight:600;margin-bottom:8px}.result b{color:var(--acc2)}.err{background:#fff0f0;border:1px solid #f3b5b5;color:#9b1c1c;padding:8px 12px;border-radius:8px;margin-bottom:8px}
svg{width:100%;height:auto;display:block;background:linear-gradient(#f4f9ff,#fff);border-radius:8px;border:1px solid var(--line)}
.tblwrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:13.5px;font-variant-numeric:tabular-nums}th,td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}th{font-size:12px;color:var(--mut);font-weight:600}
pre{white-space:pre-wrap;font:12.5px/1.55 ui-monospace,Consolas,monospace;background:#f5f7fa;padding:12px;border-radius:8px}
@media(max-width:960px){main{grid-template-columns:1fr}h1{font-size:21px}.g3{grid-template-columns:1fr 78px 78px}}
@media print{header{background:none;color:#000}.btns{display:none}body{background:#fff}.card{box-shadow:none;border:1px solid #ccc}main{grid-template-columns:1fr}}
.g2{align-items:end}small{color:var(--mut)}th,td{white-space:normal}td:first-child{min-width:110px}
table{min-width:680px}td small{white-space:nowrap}@media(max-width:960px){.g3{grid-template-columns:1fr 72px 72px}input{padding:7px 6px}}
input,select{height:30px;padding:3px 8px;line-height:1.2}@media(max-width:960px){input{padding:3px 6px}}

/* compact layout */
header{padding:12px 0;margin-bottom:12px}.logo{font-size:30px}h1{font-size:22px}.sub{font-size:13px}
main{gap:12px;padding-bottom:16px}.right{gap:12px}.card{padding:12px 14px}
h2{margin:2px 0 6px}h2:not(:first-child){margin-top:10px}
label span,.g3>span{font-size:12.5px;line-height:1.25;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:1px}
input,select{height:26px;padding:2px 7px;font-size:14px}
.g2{gap:5px 10px}.g3{gap:4px 8px}.hint{margin:3px 0;font-size:12px;line-height:1.35}.btns{margin-top:10px;gap:6px}button{padding:5px 12px}
th,td{padding:4px 6px}.result{font-size:16px;margin-bottom:6px}
@media(max-width:960px){label span,.g3>span{white-space:normal}}
.readout{margin-top:6px;font-size:12.5px;background:#f2f7fc;border:1px solid var(--line);border-radius:7px;padding:4px 8px}.readout span{color:var(--mut)}.readout output{display:block;font-weight:600;font-size:14px}.erp{display:block}