/* Калькулятор себестоимости мебели — стили (дизайн-система Structure & Surface) */
:root{
  --primary:#003d9b; --primary-container:#0052cc; --on-primary:#fff;
  --bg:#f8f9fb; --surface:#fff; --surface-low:#f3f4f6; --surface-high:#e7e8ea;
  --on-surface:#191c1e; --on-variant:#434654; --outline:#c3c6d6; --outline-strong:#D1D5DA;
  --secondary-container:#cfe6f2; --on-secondary-container:#3a4d56;
  --card-border:#E1E4E8; --hover:#F0F7FF; --stripe:#F4F5F7;
  --error:#ba1a1a; --ok:#0a7c3f; --warn:#b45309;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--sans);background:var(--bg);color:var(--on-surface);font-size:14px;line-height:20px;-webkit-font-smoothing:antialiased;height:100vh;overflow:hidden;display:flex;flex-direction:column}
button{font-family:inherit;cursor:pointer}
input,select{font-family:inherit}
.mono{font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums}
.muted{color:var(--on-variant)}
.caps{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--on-variant)}

/* Шапка */
header.top{display:flex;justify-content:space-between;align-items:center;height:56px;padding:0 20px;background:var(--surface);border-bottom:1px solid var(--outline);flex-shrink:0;gap:16px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand .logo{font-size:20px;font-weight:800;color:var(--primary);white-space:nowrap}
.brand .sep{width:1px;height:24px;background:var(--outline)}
.brand .proj{font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand .proj-edit{border:none;background:transparent;font-weight:600;font-size:15px;color:var(--on-surface);padding:2px 4px;border-radius:4px;min-width:120px}
.brand .proj-edit:hover{background:var(--surface-low)}
.brand .proj-edit:focus{outline:2px solid var(--primary-container);background:#fff}
.top .actions{display:flex;align-items:center;gap:8px}
.btn{border:1px solid var(--outline);background:var(--surface);color:var(--on-surface);padding:7px 14px;border-radius:6px;font-size:14px;font-weight:600;transition:.15s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{background:var(--surface-low)}
.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn.primary:hover{background:var(--primary-container)}
.btn.ghost{border-color:transparent;background:transparent;color:var(--primary)}
.btn.ghost:hover{background:var(--surface-low)}
.btn.sm{padding:4px 10px;font-size:13px}

/* Каркас */
.shell{display:flex;flex:1;overflow:hidden}
aside.side{width:280px;flex-shrink:0;background:var(--surface-low);border-right:1px solid var(--outline);display:flex;flex-direction:column;padding:12px}
.side h2{font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--on-variant);margin:8px 4px 10px}
.items-nav{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px}
.item-link{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:9px 10px;border-radius:8px;color:var(--on-variant);font-size:13px;font-weight:500;border:none;background:transparent;text-align:left;width:100%;transition:.15s}
.item-link:hover{background:var(--surface-high)}
.item-link.active{background:var(--secondary-container);color:var(--on-secondary-container);font-weight:600}
.item-link .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}
.item-link .sum{font-family:var(--mono);font-size:11px;opacity:.85}
.side .add-item{margin-top:10px;padding-top:12px;border-top:1px solid var(--outline)}

main.work{flex:1;overflow-y:auto;padding:24px;display:flex;gap:24px;align-items:flex-start}
.center{flex:1;max-width:820px;min-width:0}
.center>h1{font-size:28px;line-height:34px;font-weight:700;letter-spacing:-.02em;margin:0 0 12px}
.item-head{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:20px}
.field{display:flex;flex-direction:column;gap:4px}
.field label{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--on-variant)}
.field input,.field select{border:1px solid var(--outline-strong);border-radius:6px;padding:7px 10px;font-size:14px;background:#fff;height:34px}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary-container);box-shadow:0 0 0 1px var(--primary-container)}
.field .name-inp{min-width:220px}

/* Карточки групп */
.group{background:var(--surface);border:1px solid var(--card-border);border-radius:8px;overflow:hidden;margin-bottom:14px}
.group>.ghead{display:flex;align-items:center;justify-content:space-between;padding:0 14px;height:44px;cursor:pointer;user-select:none}
.group>.ghead:hover{background:#fafbfc}
.ghead .left{display:flex;align-items:center;gap:8px}
.ghead .chev{transition:transform .2s;color:var(--on-variant);font-size:18px;display:inline-block;width:18px}
.group.open .chev{transform:rotate(90deg)}
.ghead h3{font-size:15px;font-weight:600;margin:0}
.ghead .gsum{font-family:var(--mono);font-size:12px;color:var(--on-variant)}
.gbody{display:none;padding:6px 10px 12px;border-top:1px solid var(--card-border)}
.group.open .gbody{display:block}

/* Таблица материалов */
.rowhead,.matrow{display:grid;grid-template-columns:1fr 128px 96px 32px;gap:10px;align-items:center;padding:6px 8px}
.rowhead{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--on-variant);border-bottom:1px solid var(--outline);margin-bottom:2px}
.rowhead .r,.matrow .r{text-align:right}
.matrow{border-radius:6px}
.matrow:hover{background:var(--hover)}
.matrow:nth-child(even){background:var(--stripe)}
.matrow:nth-child(even):hover{background:var(--hover)}
.matrow select{width:100%;border:1px solid var(--outline-strong);border-radius:6px;padding:5px 8px;font-size:13px;height:32px;background:#fff}
.matrow select:focus{outline:none;border-color:var(--primary-container)}
.qty{display:flex;align-items:center;border:1px solid var(--outline-strong);border-radius:6px;overflow:hidden;height:32px;background:#fff}
.qty button{border:none;background:transparent;width:26px;height:100%;color:var(--on-variant);font-size:15px}
.qty button:hover{background:var(--surface-high)}
.qty input{width:100%;text-align:center;border:none;font-family:var(--mono);font-size:12px;padding:0;min-width:0}
.qty input:focus{outline:none}
.qty .unit{font-family:var(--mono);font-size:10px;color:var(--on-variant);padding-right:6px}
.matrow .cost{font-family:var(--mono);font-size:12px;text-align:right;font-weight:500}
.matrow .del{border:none;background:transparent;color:var(--on-variant);opacity:0;transition:.15s;font-size:16px;width:28px}
.matrow:hover .del{opacity:1}
.matrow .del:hover{color:var(--error)}
.addrow{padding:8px 8px 2px}
.addrow button{border:none;background:transparent;color:var(--primary);font-weight:600;font-size:13px;display:inline-flex;align-items:center;gap:4px}
.addrow button:hover{text-decoration:underline}

/* Правая сводка */
aside.summary{width:330px;flex-shrink:0;position:sticky;top:0}
.sumcard{background:var(--surface);border:1px solid var(--card-border);border-radius:8px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.06)}
.sumcard h3{font-size:20px;font-weight:600;margin:0 0 16px}
.sum-tabs{display:flex;gap:6px;margin-bottom:14px}
.sum-tabs button{flex:1;border:1px solid var(--outline);background:#fff;border-radius:6px;padding:6px;font-size:12px;font-weight:600;color:var(--on-variant)}
.sum-tabs button.on{background:var(--primary);color:#fff;border-color:var(--primary)}
.sumgrid{display:grid;grid-template-columns:1fr 84px 84px;gap:6px 8px;align-items:center}
.sumgrid .h{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--on-variant);padding-bottom:6px;border-bottom:1px solid var(--outline)}
.sumgrid .h.r,.sumgrid .v{text-align:right}
.sumgrid .cat{padding:7px 0;border-bottom:1px solid #eef0f2}
.sumgrid .v{font-family:var(--mono);font-size:12px;padding:7px 0;border-bottom:1px solid #eef0f2}
.sumgrid .factinp{width:80px;text-align:right;border:1px solid var(--outline-strong);border-radius:4px;font-family:var(--mono);font-size:12px;padding:3px 5px}
.sumgrid .factinp:focus{outline:none;border-color:var(--primary-container)}
.sumgrid .diff-pos{color:var(--ok)} .sumgrid .diff-neg{color:var(--error)}
.total-line{display:flex;justify-content:space-between;align-items:flex-end;gap:10px;margin-top:18px;padding-top:12px;border-top:1px solid var(--card-border)}
.total-line .lbl{font-size:13px;font-weight:600;color:var(--on-variant);line-height:1.2}
.total-line .val{font-size:23px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums;white-space:nowrap}
.tip{margin-top:16px;padding:11px 12px;background:var(--surface-low);border:1px solid var(--outline);border-radius:8px;display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--on-variant)}
.tip .ic{color:var(--primary);flex-shrink:0}
.tip.save{background:#eaf7ee;border-color:#bfe6cd;color:#146c39}
.client-line{margin-top:12px;padding-top:12px;border-top:1px dashed var(--outline);display:flex;justify-content:space-between;align-items:baseline}
.client-line .lbl{font-size:13px;color:var(--on-variant)}
.client-line .val{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--primary)}

/* Футер */
footer.bar{display:flex;justify-content:space-between;align-items:center;height:60px;padding:0 24px;background:var(--surface-high);border-top:1px solid var(--outline);flex-shrink:0;box-shadow:0 -2px 10px rgba(0,0,0,.05)}
.grand{display:flex;align-items:center;gap:14px}
.grand .lbl{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--on-variant)}
.grand .val{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}
.bar .actions{display:flex;gap:10px}

/* Мобильная адаптация */
@media(max-width:1080px){
  main.work{flex-direction:column}
  aside.summary{width:100%;position:static}
}
@media(max-width:760px){
  body{overflow:auto;height:auto}
  .shell{flex-direction:column;overflow:visible}
  aside.side{width:100%;border-right:none;border-bottom:1px solid var(--outline)}
  .items-nav{flex-direction:row;overflow-x:auto}
  .item-link{min-width:160px}
  main.work{padding:14px}
  header.top{flex-wrap:wrap;height:auto;padding:10px 14px}
  .top .actions .hide-sm{display:none}
  footer.bar{flex-direction:column;height:auto;gap:8px;padding:12px}
  .rowhead,.matrow{grid-template-columns:1fr 110px 82px 28px}
}
/* Подгруппы */
.subgroup{margin:2px 0 8px;padding:6px 4px 4px;border-top:1px solid #f0f1f3}
.subgroup:first-child{border-top:none}
.sg-head{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 4px}
.sg-label{font-size:12px;font-weight:600;color:var(--on-variant)}
.sg-grid{display:grid;grid-template-columns:1fr 128px 96px 32px;gap:8px;align-items:center}
.sg-grid.ldsp{grid-template-columns:1fr 110px 118px 96px 32px}
.rowhead.sg-grid{padding:4px 8px}
.a-sel{border:1px solid var(--outline-strong);border-radius:6px;height:32px;font-size:12px;padding:2px 4px;background:#fff}
.dopy-grid{display:grid;grid-template-columns:1fr 70px 90px 76px 90px 28px;gap:8px;align-items:center}
.dopy-grid input{border:1px solid var(--outline-strong);border-radius:6px;height:32px;font-size:12px;padding:4px 8px;width:100%}
.dopy-grid input.num{text-align:right;font-family:var(--mono)}
/* Опции */
.opts-body{display:flex;flex-direction:column;gap:10px;padding:12px 10px}
.opt-row{display:flex;flex-wrap:wrap;gap:14px}
.opt-chk{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--on-surface);cursor:pointer;white-space:nowrap}
.opt-chk input{width:16px;height:16px}
.opt-num{display:flex;align-items:center;gap:6px;font-size:13px}
.opt-num input{border:1px solid var(--outline-strong);border-radius:6px;height:30px;font-size:13px;padding:2px 8px;font-family:var(--mono);text-align:right}
/* Цена клиенту + предоплата */
.client-box{margin-top:12px;padding-top:12px;border-top:1px dashed var(--outline)}
.client-line{display:flex;justify-content:space-between;align-items:baseline}
.client-line .lbl{font-size:13px;color:var(--on-variant)}
.client-line .val{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--primary)}
.pre-line{display:flex;flex-direction:column;gap:2px;margin-top:6px;font-size:12px;color:var(--on-variant)}
.pre-line span{display:flex;justify-content:space-between}
.pre-line b{color:var(--on-surface);font-family:var(--mono)}
/* Рассрочка */
.rass{margin-top:14px;padding:12px;background:var(--surface-low);border:1px solid var(--outline);border-radius:8px}
.rass-title{font-size:13px;font-weight:700;margin-bottom:8px}
.rass-row{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.rass-row #rassSum{grid-column:1/3}
.rass-row input,.rass-row select{border:1px solid var(--outline-strong);border-radius:6px;height:32px;font-size:13px;padding:2px 8px;width:100%}
.rass-out{margin-top:8px;font-size:13px;color:var(--on-surface)}
.rass-out b{color:var(--primary)}

.hidden{display:none!important}

/* Печать сметы */
#printArea{display:none}
.pr-doc{font-family:var(--sans);color:#111}
.pr-doc h1{font-size:22px;margin:0 0 4px}
.pr-doc .pr-meta{font-size:13px;color:#555;margin-bottom:18px}
.pr-item{margin-bottom:18px;break-inside:avoid}
.pr-item h2{font-size:16px;margin:0 0 6px;padding-bottom:4px;border-bottom:2px solid #003d9b}
.pr-tbl{width:100%;border-collapse:collapse;font-size:12px}
.pr-tbl td,.pr-tbl th{padding:4px 8px;border-bottom:1px solid #ddd;text-align:left}
.pr-tbl th{background:#f0f2f5;font-size:11px;text-transform:uppercase;letter-spacing:.03em}
.pr-tbl td.r,.pr-tbl th.r{text-align:right;font-variant-numeric:tabular-nums}
.pr-sub{font-size:12px;margin-top:6px;display:flex;gap:24px;flex-wrap:wrap;color:#333}
.pr-sub b{color:#111}
.pr-total{margin-top:16px;border-top:2px solid #111;padding-top:10px}
.pr-total table{width:100%;font-size:13px;border-collapse:collapse}
.pr-total td{padding:4px 0}
.pr-total td.r{text-align:right;font-variant-numeric:tabular-nums}
.pr-total .big td{font-size:18px;font-weight:700;border-top:1px solid #111;padding-top:8px}
.pr-save{margin-top:8px;color:#146c39;font-size:13px;font-weight:600}
.pr-client{margin-top:4px;color:#003d9b;font-size:13px}

@media print{
  @page{margin:14mm}
  body{height:auto;overflow:visible}
  header.top,.shell,footer.bar{display:none!important}
  #printArea{display:block}
}