:root{
  --bg:#f4f6fa; --panel:#ffffff; --ink:#1b2330; --muted:#6b7688;
  --line:#dfe4ec; --blue:#1f6feb; --green:#0f9d58; --red:#d93025;
  --blue-soft:#eaf2ff; --green-soft:#e8f7ef; --red-soft:#fdecea;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink); font:15px/1.45 "Segoe UI",Roboto,Arial,sans-serif;
}

/* ---------- шапка ---------- */
.top{
  position:sticky; top:0; z-index:10; display:flex; align-items:center;
  justify-content:space-between; gap:16px; flex-wrap:wrap;
  background:var(--panel); border-bottom:1px solid var(--line); padding:10px 18px;
}
.brand b{font-size:17px}
.ver{color:var(--muted); font-size:12px; margin-left:8px}
.top-actions{display:flex; align-items:center; gap:8px; flex-wrap:wrap}
.msg{font-size:13px; color:var(--green); min-width:60px}
.msg.err{color:var(--red)}

/* ---------- кнопки ---------- */
.btn{
  background:var(--blue); color:#fff; border:0; border-radius:8px;
  padding:8px 14px; font-size:14px; cursor:pointer; font-family:inherit;
}
.btn:hover{filter:brightness(1.07)}
.btn:active{transform:translateY(1px)}
a.btn{text-decoration:none; display:inline-block; line-height:1.3}
.layout-one{grid-template-columns:1fr}
.btn-quiet{background:#e7ebf2; color:var(--ink)}
.btn-small{padding:5px 10px; font-size:13px}
.btn-x{background:transparent; color:var(--red); border:1px solid var(--line); border-radius:6px; cursor:pointer; padding:2px 8px}

/* ---------- раскладка ---------- */
.layout{
  display:grid; grid-template-columns:minmax(420px,1fr) minmax(440px,1fr);
  gap:16px; padding:16px; align-items:start;
}
@media (max-width:1080px){ .layout{grid-template-columns:1fr} }
.panel{
  background:var(--panel); border:1px solid var(--line); border-radius:12px;
  padding:16px 18px; box-shadow:0 1px 2px rgba(20,30,50,.05);
}
.panel h2{font-size:15px; text-transform:uppercase; letter-spacing:.4px;
  color:var(--muted); margin:18px 0 8px; padding-top:12px; border-top:1px solid var(--line)}
.panel h2:first-child{margin-top:0; padding-top:0; border-top:0}
.panel h3{font-size:14px; margin:18px 0 8px; color:var(--ink)}
.hint{color:var(--muted); font-size:12.5px; margin:4px 0 10px}

/* ---------- поля ---------- */
.grid2{display:grid; grid-template-columns:1fr 1fr; gap:10px 12px}
@media (max-width:560px){ .grid2{grid-template-columns:1fr} }
label{display:block; font-size:12.5px; color:var(--muted)}
input[type=text],input[type=number],select{
  width:100%; margin-top:3px; padding:7px 9px; font:inherit; font-size:14px;
  color:var(--ink); background:#fff; border:1px solid var(--line); border-radius:7px;
}
input:focus,select:focus{outline:2px solid var(--blue-soft); border-color:var(--blue)}
.chk{display:flex; align-items:center; gap:8px; margin-top:10px; color:var(--ink); font-size:13.5px}
.chk input{width:16px; height:16px}
#wrap-margin{margin-top:12px}

/* ---------- таблицы ---------- */
.tbl{width:100%; border-collapse:collapse; font-size:13.5px}
.tbl th{
  text-align:left; font-weight:600; font-size:11.5px; text-transform:uppercase;
  letter-spacing:.3px; color:var(--muted); padding:6px 6px; border-bottom:1px solid var(--line);
}
.tbl td{padding:4px 6px; border-bottom:1px solid #f0f3f8; vertical-align:middle}
.tbl input,.tbl select{padding:5px 7px; font-size:13.5px; margin-top:0}
.tbl-num td:last-child, .tbl-num th:last-child{text-align:right; font-variant-numeric:tabular-nums}
.tbl tfoot td{padding-top:8px; border-bottom:0}
.num{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}

/* ---------- режимы ---------- */
.modes{display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:8px 0}
@media (max-width:560px){ .modes{grid-template-columns:1fr} }
.mode{
  display:flex; gap:9px; align-items:flex-start; padding:10px 12px;
  border:1px solid var(--line); border-radius:9px; cursor:pointer; color:var(--ink);
}
.mode:has(input:checked){border-color:var(--blue); background:var(--blue-soft)}
.mode input{margin-top:3px; width:16px; height:16px}
.mode small{display:block; color:var(--muted); font-size:12px}

/* ---------- карточки результата ---------- */
.cards{display:grid; grid-template-columns:1fr 1fr; gap:12px}
@media (max-width:560px){ .cards{grid-template-columns:1fr} }
.card{border-radius:11px; padding:14px 16px; border:1px solid var(--line)}
.card-blue{background:var(--blue-soft); border-color:#cfe0ff}
.card-green{background:var(--green-soft); border-color:#c6ecd6}
.card-red{background:var(--red-soft); border-color:#f6cfca}
.card-label{font-size:12px; text-transform:uppercase; letter-spacing:.4px; color:var(--muted)}
.card-value{font-size:31px; font-weight:700; margin:4px 0 2px; font-variant-numeric:tabular-nums}
.card-sub{font-size:12.5px; color:var(--muted)}
.card-blue .card-value{color:#12459c}
.card-green .card-value{color:#0a7a43}
.card-red .card-value{color:var(--red)}

/* ---------- конвейер ---------- */
.row-minus td:nth-child(2){color:var(--red)}
.row-plus td:nth-child(2){color:var(--green)}
.row-total{font-weight:700}
.row-total td{border-top:2px solid var(--line); padding-top:8px}
.row-sub td:first-child{padding-left:20px; color:var(--muted)}
.minus-text{color:var(--red); font-weight:700}
.derived{font-weight:600; color:#0a7a43}
.alert{
  margin-top:14px; padding:11px 13px; border-radius:9px; font-size:13.5px;
  background:var(--red-soft); border:1px solid #f6cfca; color:#8c1d13;
}
.alert.ok{background:var(--green-soft); border-color:#c6ecd6; color:#0a6b3c}
.variant-best{background:var(--green-soft); font-weight:600}

/* ---------- экран входа ---------- */
.login-body{
  display:flex; align-items:center; justify-content:center;
  min-height:100vh; margin:0; background:linear-gradient(160deg,#eef3fb,#f7f9fc 60%,#eef6f1);
}
.login-box{
  width:100%; max-width:390px; background:var(--panel); border:1px solid var(--line);
  border-radius:14px; padding:26px 26px 22px; box-shadow:0 8px 30px rgba(20,30,50,.10);
}
.login-brand{margin-bottom:18px; text-align:center}
.login-brand b{display:block; font-size:19px}
.login-brand span{display:block; color:var(--muted); font-size:13px; margin-top:3px}
.login-box label{margin-bottom:12px}
.pw-wrap{position:relative; display:block}
.pw-wrap input{padding-right:46px}
.pw-eye{
  position:absolute; right:4px; top:50%; transform:translateY(-50%);
  width:38px; height:34px; display:flex; align-items:center; justify-content:center;
  border:0; background:transparent; cursor:pointer; color:#5b6b82; border-radius:6px;
}
.pw-eye:hover{background:#eef2f8}
.login-btn{width:100%; margin-top:6px; padding:11px; font-size:15px}
.login-err{color:var(--red); font-size:13px; min-height:20px; margin:2px 0 4px}

/* ---------- окно «данные для подбора» ---------- */
.modal{
  position:fixed; inset:0; z-index:50; background:rgba(20,30,50,.45);
  display:flex; align-items:flex-start; justify-content:center; padding:28px 16px; overflow:auto;
}
.modal[hidden]{display:none}
.modal-box{
  background:var(--panel); border-radius:12px; width:100%; max-width:1180px;
  box-shadow:0 10px 40px rgba(20,30,50,.3);
}
.modal-head{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:14px 18px; border-bottom:1px solid var(--line);
}
.modal-body{padding:16px 18px}
.podbor-grid{display:grid; grid-template-columns:1fr 1fr; gap:18px}
@media (max-width:900px){ .podbor-grid{grid-template-columns:1fr} }
.podbor-grid h4{margin:0 0 8px; font-size:13px; text-transform:uppercase; letter-spacing:.4px; color:var(--muted)}
.podbor-grid pre{
  margin:0 0 10px; padding:12px 14px; background:#f7f9fc; border:1px solid var(--line);
  border-radius:9px; font:13px/1.55 "Consolas","Segoe UI",monospace; white-space:pre-wrap;
  max-height:60vh; overflow:auto; color:var(--ink);
}