/* =====================================================================
   Строительная смета — демо-версия. Стили.
   Палитра и ритм согласованы с оболочкой expert-val.ru
   ===================================================================== */
:root{
  --bg:#eef2f7; --panel:rgba(255,255,255,.78); --panel-solid:#fff;
  --ink:#0f172a; --ink-2:#334155; --ink-3:#64748b; --ink-4:#94a3b8;
  --line:#dbe3ee; --line-2:#eef2f7;
  --blue:#1d4ed8; --blue-2:#2563eb; --blue-soft:#eff6ff;
  --sky:#0ea5e9; --green:#059669; --green-soft:#ecfdf5;
  --amber:#b45309; --amber-soft:#fffbeb; --red:#b91c1c; --red-soft:#fef2f2;
  --violet:#7c3aed;
  --r:14px; --r-sm:9px;
  --sh:0 1px 2px rgba(15,23,42,.05), 0 8px 24px -12px rgba(15,23,42,.18);
  --sh-2:0 2px 6px rgba(15,23,42,.07), 0 18px 40px -18px rgba(15,23,42,.28);
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 15% -10%, #dbeafe 0%, transparent 60%),
    radial-gradient(900px 500px at 95% 0%, #e0f2fe 0%, transparent 55%),
    var(--bg);
  color:var(--ink); font-size:15px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.25}
button{font-family:inherit}
a{color:var(--blue-2)}

/* ---------- Шапка ---------- */
.top{
  position:sticky; top:0; z-index:50;
  background:rgba(255,255,255,.86); backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.top-in{max-width:1240px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.2px}
.brand-ico{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;font-size:18px;
  background:linear-gradient(135deg,#1e40af,#0ea5e9);color:#fff;box-shadow:0 3px 10px rgba(29,78,216,.3)}
.brand-t{font-size:16px}
.brand-s{display:block;font-size:11px;font-weight:600;color:var(--ink-3);letter-spacing:.2px}
.tabs{display:flex;gap:4px;margin-left:auto;background:#eef2f7;padding:4px;border-radius:11px}
.tab{
  border:0;background:transparent;color:var(--ink-2);font-size:13.5px;font-weight:650;
  padding:8px 14px;border-radius:8px;cursor:pointer;display:flex;align-items:center;gap:7px;
  transition:.15s;white-space:nowrap
}
.tab:hover{background:rgba(255,255,255,.75);color:var(--ink)}
.tab[aria-selected="true"]{background:#fff;color:var(--blue);box-shadow:0 1px 3px rgba(15,23,42,.12)}
.tab-n{background:var(--blue);color:#fff;font-size:10.5px;font-weight:800;min-width:18px;height:18px;
  border-radius:9px;display:grid;place-items:center;padding:0 5px}
.tab[aria-selected="true"] .tab-n{background:var(--blue)}

.wrap{max-width:1240px;margin:0 auto;padding:20px 18px 72px}
.panel{background:var(--panel-solid);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh)}
.pad{padding:18px 20px}
h2.sec{font-size:19px;font-weight:800;letter-spacing:-.3px;display:flex;align-items:center;gap:9px}
h2.sec .sub{font-size:12.5px;font-weight:600;color:var(--ink-3);letter-spacing:0}
.hr{height:1px;background:var(--line-2);margin:16px 0}
.muted{color:var(--ink-3)}
.small{font-size:12.5px}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- Кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:13.5px;font-weight:650;padding:9px 15px;border-radius:10px;cursor:pointer;
  transition:.15s;box-shadow:0 1px 2px rgba(15,23,42,.04)
}
.btn:hover{border-color:#c3cedd;background:#fbfcfe;transform:translateY(-1px)}
.btn:active{transform:none}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-p{background:linear-gradient(135deg,#1e40af,#2563eb);border-color:#1e3a8a;color:#fff;box-shadow:0 2px 8px rgba(29,78,216,.28)}
.btn-p:hover{background:linear-gradient(135deg,#1d4ed8,#3b82f6);border-color:#1e40af;color:#fff}
.btn-g{background:var(--green-soft);border-color:#a7f3d0;color:#065f46}
.btn-g:hover{background:#d1fae5;border-color:#6ee7b7;color:#065f46}
.btn-d{background:#fff;border-color:#fecaca;color:var(--red)}
.btn-d:hover{background:var(--red-soft);border-color:#fca5a5;color:var(--red)}
.btn-sm{padding:6px 11px;font-size:12.5px;border-radius:8px}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- Бейджи ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;
  padding:3px 9px;border-radius:20px;background:#eef2f7;color:var(--ink-2);white-space:nowrap}
.badge-blue{background:var(--blue-soft);color:#1e40af}
.badge-green{background:var(--green-soft);color:#065f46}
.badge-amber{background:var(--amber-soft);color:var(--amber)}
.badge-red{background:var(--red-soft);color:var(--red)}
.badge-violet{background:#f5f3ff;color:#5b21b6}

/* ---------- Плашка-предупреждение демо-режима ---------- */
.demo-bar{
  display:flex;gap:11px;align-items:flex-start;padding:11px 14px;border-radius:11px;
  background:var(--amber-soft);border:1px solid #fde68a;color:#78350f;font-size:12.8px;line-height:1.5
}
.demo-bar b{color:#92400e}
.info-bar{display:flex;gap:11px;align-items:flex-start;padding:11px 14px;border-radius:11px;
  background:var(--blue-soft);border:1px solid #bfdbfe;color:#1e3a8a;font-size:12.8px;line-height:1.5}

/* ---------- Теория ---------- */
.t-grid{display:grid;grid-template-columns:250px 1fr;gap:18px;align-items:start}
.t-nav{position:sticky;top:76px;display:flex;flex-direction:column;gap:4px}
.t-nav button{
  text-align:left;border:1px solid transparent;background:transparent;color:var(--ink-2);
  padding:10px 12px;border-radius:10px;cursor:pointer;font-size:13.5px;font-weight:600;
  display:flex;gap:9px;align-items:flex-start;transition:.14s;line-height:1.35
}
.t-nav button:hover{background:#f1f5f9}
.t-nav button[aria-current="true"]{background:var(--blue-soft);color:#1e40af;border-color:#bfdbfe;font-weight:700}
.t-nav .n{font-size:15px;line-height:1.2}
.t-content h3{font-size:17.5px;font-weight:800;display:flex;gap:9px;align-items:center;margin-bottom:5px}
.t-content .lead{color:var(--ink-3);font-size:13.5px;margin-bottom:16px}
.t-content h4{font-size:14px;font-weight:750;margin:18px 0 8px}
.t-content p{margin:0 0 12px;color:var(--ink-2);font-size:14px}
.t-content ul,.t-content ol{margin:0 0 12px;padding-left:20px;color:var(--ink-2);font-size:14px}
.t-content li{margin-bottom:6px}
.t-content li::marker{color:var(--blue);font-weight:700}
.t-content b{color:var(--ink)}
.t-content code{background:#f1f5f9;border:1px solid var(--line);border-radius:5px;padding:1px 5px;
  font-size:12.5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#be123c}

.t-formula{background:#f8fafc;border:1px solid var(--line);border-radius:11px;padding:13px 15px;margin:0 0 15px}
.t-f-row{display:flex;gap:11px;align-items:baseline;padding:6px 0;font-size:13.5px;color:var(--ink-2)}
.t-f-row+.t-f-row{border-top:1px dashed var(--line)}
.t-f-key{flex:0 0 54px;font-weight:800;color:var(--blue);font-size:13px}

.t-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:11px;margin:0 0 15px}
.t-table{width:100%;border-collapse:collapse;font-size:13.3px}
.t-table th{background:#f1f5f9;text-align:left;padding:9px 12px;font-weight:750;color:var(--ink-2);
  border-bottom:1px solid var(--line);white-space:nowrap;font-size:12.5px}
.t-table td{padding:8px 12px;border-bottom:1px solid var(--line-2);color:var(--ink-2);vertical-align:top}
.t-table tr:last-child td{border-bottom:0}
.t-table tbody tr:hover{background:#fafbfd}
.t-table .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.t-note{padding:11px 14px;border-radius:10px;background:#f1f5f9;border-left:3px solid var(--ink-4);
  font-size:13px;color:var(--ink-2);margin:14px 0 0;line-height:1.55}
.t-note--warn{background:var(--amber-soft);border-left-color:#f59e0b;color:#78350f}
.t-note--info{background:var(--blue-soft);border-left-color:var(--blue-2);color:#1e3a8a}
.t-list li{margin-bottom:9px}

/* ---------- Тест ---------- */
.q-card{border:1px solid var(--line);border-radius:12px;padding:15px 17px;background:#fcfdff}
.q-card+.q-card{margin-top:12px}
.q-num{font-size:11.5px;font-weight:800;color:var(--blue);letter-spacing:.4px;margin-bottom:5px}
.q-text{font-size:14.5px;font-weight:650;color:var(--ink);margin-bottom:11px}
.q-opt{display:flex;gap:9px;align-items:flex-start;padding:9px 12px;border:1px solid var(--line);
  border-radius:9px;background:#fff;cursor:pointer;margin-bottom:7px;font-size:13.5px;color:var(--ink-2);transition:.14s}
.q-opt:hover{border-color:var(--blue);background:var(--blue-soft)}
.q-opt input{margin:2px 0 0;accent-color:var(--blue);cursor:pointer;flex:0 0 auto}
.q-opt.ok{background:var(--green-soft);border-color:#6ee7b7;color:#065f46;font-weight:650}
.q-opt.no{background:var(--red-soft);border-color:#fca5a5;color:var(--red)}
.q-exp{margin-top:10px;padding:10px 13px;border-radius:9px;background:#f1f5f9;font-size:13px;
  color:var(--ink-2);border-left:3px solid var(--blue-2);line-height:1.55}
.quiz-top{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:13px 16px;border-radius:11px;
  background:linear-gradient(135deg,#eff6ff,#f0fdfa);border:1px solid #bfdbfe;margin-bottom:14px}
.quiz-score{font-size:22px;font-weight:850;color:var(--blue);font-variant-numeric:tabular-nums}
.pbar{height:8px;background:#e2e8f0;border-radius:6px;overflow:hidden;flex:1;min-width:160px}
.pbar i{display:block;height:100%;background:linear-gradient(90deg,#1d4ed8,#0ea5e9);border-radius:6px;transition:.4s}

/* ---------- Загрузка фото ---------- */
.drop{
  border:2px dashed #cbd5e1;border-radius:14px;background:linear-gradient(180deg,#fbfdff,#f7fafd);
  padding:30px 22px;text-align:center;cursor:pointer;transition:.18s
}
.drop:hover,.drop.over{border-color:var(--blue);background:var(--blue-soft)}
.drop-ico{font-size:38px;line-height:1}
.drop b{display:block;font-size:15.5px;margin:9px 0 4px;color:var(--ink)}
.drop span{font-size:12.8px;color:var(--ink-3)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.card-ph{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;box-shadow:var(--sh)}
.ph-top{position:relative;background:#0f172a;aspect-ratio:4/3;overflow:hidden}
.ph-top img{width:100%;height:100%;object-fit:contain;display:block}
.ph-bars{position:absolute;left:0;right:0;bottom:0;padding:7px 9px;background:linear-gradient(transparent,rgba(2,6,23,.9));
  display:flex;gap:5px;flex-wrap:wrap}
.ph-b{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:10px;
  font-weight:700;padding:2px 6px;border-radius:5px;backdrop-filter:blur(3px)}
.ph-b.hi{background:rgba(251,191,36,.28);border-color:#fbbf24}
.ph-x{position:absolute;top:7px;right:7px;width:26px;height:26px;border-radius:7px;border:0;cursor:pointer;
  background:rgba(15,23,42,.72);color:#fff;font-size:15px;line-height:1;display:grid;place-items:center}
.ph-x:hover{background:var(--red)}
.ph-body{padding:12px 14px}
.ph-hint{font-size:11.5px;color:var(--ink-3);margin-top:8px;line-height:1.45}
.hyp{display:flex;gap:9px;align-items:center;padding:8px 10px;border:1px solid var(--line);
  border-radius:9px;margin-bottom:6px;cursor:pointer;transition:.14s;background:#fff}
.hyp:hover{border-color:var(--blue);background:var(--blue-soft)}
.hyp.sel{border-color:var(--blue);background:var(--blue-soft);box-shadow:0 0 0 2px rgba(37,99,235,.14)}
.hyp-ic{font-size:17px;flex:0 0 auto}
.hyp-n{font-size:13.3px;font-weight:650;color:var(--ink);line-height:1.3}
.hyp-c{font-size:11px;color:var(--ink-3);margin-top:2px;line-height:1.3}
.hyp-p{margin-left:auto;font-size:12.5px;font-weight:800;font-variant-numeric:tabular-nums;flex:0 0 auto}
.meter{height:5px;background:#e2e8f0;border-radius:4px;overflow:hidden;margin-top:5px}
.meter i{display:block;height:100%;background:linear-gradient(90deg,#f59e0b,#ef4444);border-radius:4px}

/* ---------- Формы ---------- */
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:12px}
.f{display:flex;flex-direction:column;gap:5px}
.f label{font-size:11.5px;font-weight:700;color:var(--ink-3);letter-spacing:.2px}
.f input,.f select,.f textarea{
  border:1px solid var(--line);border-radius:9px;padding:8px 11px;font-size:13.5px;color:var(--ink);
  background:#fff;font-family:inherit;transition:.14s;width:100%
}
.f input:focus,.f select:focus,.f textarea:focus{outline:0;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(37,99,235,.13)}
.f input[readonly]{background:#f8fafc;color:var(--ink-3)}
.f.wide{grid-column:1/-1}
.f .hint{font-size:11px;color:var(--ink-4);line-height:1.4}
.inline{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);cursor:pointer;
  padding:7px 0;font-weight:600}
.inline input{accent-color:var(--blue);width:16px;height:16px;cursor:pointer}

/* ---------- Смета ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:#fff}
table.sm{width:100%;border-collapse:collapse;font-size:12.7px;min-width:1180px}
table.sm th{background:#f1f5f9;padding:9px 8px;text-align:left;font-weight:750;color:var(--ink-2);
  border-bottom:1.5px solid var(--line);white-space:nowrap;font-size:11.5px;position:sticky;top:0;z-index:2}
table.sm td{padding:7px 8px;border-bottom:1px solid var(--line-2);color:var(--ink-2);vertical-align:top}
table.sm tbody tr:hover{background:#fafbfd}
table.sm .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
table.sm .n{color:var(--ink-4);text-align:right;width:34px}
table.sm .osn{color:var(--amber);font-size:11px;font-style:italic;white-space:nowrap}
table.sm .wname{color:var(--ink);font-weight:600;min-width:250px}
table.sm .dnote{color:var(--ink-4);font-size:11px;font-weight:500;margin-top:2px}
tr.sec-row td{background:#eef2f7;font-weight:800;color:var(--ink);font-size:12.5px;
  border-top:1.5px solid var(--line);border-bottom:1.5px solid var(--line);padding:9px 10px}
tr.sub-row td{background:#f8fafc;font-weight:750;color:var(--ink-2);font-size:12.3px}
tr.sum-row td{background:#f8fafc;font-weight:800;color:var(--ink);border-top:1.5px solid var(--line)}
tr.itog-row td{background:linear-gradient(90deg,#eff6ff,#f0fdfa);font-weight:850;color:#0f172a;font-size:13.5px;
  border-top:2px solid #1e40af}

.sum-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.sum-c{border:1px solid var(--line);border-radius:11px;padding:12px 14px;background:#fff}
.sum-c .k{font-size:11px;font-weight:750;color:var(--ink-3);letter-spacing:.2px;margin-bottom:4px}
.sum-c .v{font-size:17px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.3px}
.sum-c .s{font-size:11px;color:var(--ink-4);margin-top:3px}
.sum-c.acc{background:linear-gradient(135deg,#eff6ff,#f0fdfa);border-color:#bfdbfe}
.sum-c.acc .v{color:#1e40af;font-size:20px}
.sum-c.tot{background:linear-gradient(135deg,#1e40af,#2563eb);border-color:#1e3a8a}
.sum-c.tot .k,.sum-c.tot .s{color:#bfdbfe}
.sum-c.tot .v{color:#fff;font-size:22px}

.empty{text-align:center;padding:44px 20px;color:var(--ink-3)}
.empty-ico{font-size:44px;margin-bottom:10px;opacity:.5}
.empty b{display:block;color:var(--ink-2);font-size:15px;margin-bottom:5px}

.list-def{display:flex;flex-direction:column;gap:8px}
.li-def{display:flex;gap:11px;align-items:center;padding:10px 13px;border:1px solid var(--line);
  border-radius:11px;background:#fff;flex-wrap:wrap}
.li-ic{font-size:19px;flex:0 0 auto}
.li-main{flex:1 1 210px;min-width:0}
.li-main b{font-size:13.5px;font-weight:700;color:var(--ink);display:block}
.li-main span{font-size:11.5px;color:var(--ink-3)}
.li-v{display:flex;align-items:center;gap:6px}
.li-v input{width:82px;text-align:right;padding:6px 9px;border:1px solid var(--line);
  border-radius:8px;font-size:13.5px;font-variant-numeric:tabular-nums;font-family:inherit}
.li-v input:focus{outline:0;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,.13)}
.li-v em{font-style:normal;font-size:12px;color:var(--ink-3);font-weight:700}

.stack{display:flex;flex-direction:column;gap:16px}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}
@media(max-width:960px){.t-grid{grid-template-columns:1fr}.t-nav{position:static;flex-direction:row;overflow-x:auto;padding-bottom:4px}
  .cols2{grid-template-columns:1fr}.tabs{margin-left:0;width:100%;overflow-x:auto}}
@media(max-width:600px){.wrap{padding:14px 12px 60px}.pad{padding:15px 14px}.top-in{padding:9px 12px}
  .grid{grid-template-columns:1fr}.sum-cards{grid-template-columns:1fr 1fr}}

@media print{
  .top,.no-print,.tabs{display:none!important}
  body{background:#fff;font-size:10.5px}
  .wrap{max-width:none;padding:0}
  .panel{box-shadow:none;border:0;border-radius:0}
  table.sm{min-width:0;font-size:9.5px}
  table.sm th{position:static}
  .tbl-wrap{overflow:visible;border:0}
  tr{page-break-inside:avoid}
}

/* ---------- Режим распознавания ---------- */
.mode-bar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:14px;
  padding:11px 14px;border-radius:11px;background:#f8fafc;border:1px solid var(--line)}
.ai-status{font-size:12.5px;color:var(--ink-3);font-weight:600;margin-left:auto}
.ai-status b{color:var(--ink-2)}
.ai-status.on b{color:var(--green)}
.ai-status.err b{color:var(--red)}

.ai-box{margin:0 0 10px;padding:11px 13px;border-radius:11px;border:1px solid #bfdbfe;
  background:linear-gradient(180deg,#f0f7ff,#fbfdff)}
.ai-box.is-mock{border-color:#fde68a;background:linear-gradient(180deg,#fffbeb,#fffdf5)}
.ai-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:7px}
.ai-name{font-size:13.8px;font-weight:750;color:#0f172a}
.ai-row{font-size:12.5px;color:var(--ink-2);line-height:1.5;margin-top:4px}
.ai-row em{font-style:normal;font-weight:700;color:var(--ink-3);margin-right:4px}
.ai-safe{padding:7px 11px;border-radius:9px;font-size:12.5px;font-weight:650;margin-top:8px}
.ai-safe.s-none{background:var(--green-soft);color:#065f46}
.ai-safe.s-attention{background:var(--amber-soft);color:var(--amber)}
.ai-safe.s-critical{background:var(--red-soft);color:var(--red)}
.ai-act{display:flex;gap:7px;margin-top:9px}
.ai-err{font-size:12.5px;color:var(--red);background:var(--red-soft);border:1px solid #fecaca;
  border-radius:9px;padding:8px 11px;margin-bottom:10px;line-height:1.45}
.ai-busy{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--blue);font-weight:650;
  margin-bottom:10px}
.spin{width:13px;height:13px;border:2px solid #bfdbfe;border-top-color:var(--blue);border-radius:50%;
  animation:sp .7s linear infinite;flex:0 0 auto}
@keyframes sp{to{transform:rotate(360deg)}}