:root{
  --accent:#0b5ed7;
  --muted:#666;
  --card:#fff;
  --bg:#f7f9fc;
  --danger:#d9534f;
  --success:#198754;
}
html,body{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial;}
body{background:linear-gradient(180deg,#f0f4fb,#f7f9fc);padding:24px;color:#0b1726;}
.wrap{max-width:1000px;margin:0 auto;}
header{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
header h1{font-size:20px;margin:0;}
.card{background:var(--card);box-shadow:0 8px 22px rgba(12,40,70,0.06);border-radius:12px;padding:16px;margin-bottom:16px;}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
input[type="text"], input[type="number"], input[type="date"]{
  width:100%;
  padding:10px 12px;border-radius:8px;border:1px solid #e6eef9;font-size:14px;background:#fbfeff;
  box-sizing:border-box;
}
.section-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;}
.controls{display:flex;gap:10px;align-items:center;margin-top:10px;flex-wrap:wrap;}
.btn{
  background:var(--accent);color:white;border:0;padding:10px 14px;border-radius:8px;cursor:pointer;font-weight:600;
  box-shadow:0 6px 16px rgba(11,94,215,0.12);
}
.btn.secondary{background:transparent;color:var(--accent);border:1px solid rgba(11,94,215,0.12);}
.danger{background:transparent;color:var(--danger);border:1px solid rgba(217,83,79,0.12);padding:8px 12px;border-radius:8px;}
.tables{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px;}
table{width:100%;border-collapse:collapse;font-size:13px;background:transparent;}
th,td{padding:8px 10px;border-bottom:1px solid #eef4fb;text-align:left;}
th{background:rgba(11,94,215,0.04);font-weight:700;}
.unit-header{font-size:14px;margin:6px 0 8px 0;color:var(--accent);font-weight:700}
.msg{padding:8px;border-radius:8px;background:#fff3cd;color:#856404;border:1px solid rgba(255,193,7,0.1);margin-bottom:12px;}
.err{padding:8px;border-radius:8px;background:#ffe6e6;color:#8b1d1d;border:1px solid rgba(217,83,79,0.12);margin-bottom:12px;}
.small{font-size:12px;color:var(--muted);}
.action-btn{cursor:pointer;color:var(--accent);margin-left:6px;font-size:12px;}
.sum-amount{margin-top:6px;font-weight:600;color:#0b1726;}
@media (max-width:860px){
  .grid{grid-template-columns:1fr;}
  .tables{grid-template-columns:1fr;}
}