:root{
  --bg:#eef0f4; --card:#fff; --ink:#1d2330; --muted:#667085; --line:#e2e5ec; --accent:#2f5bea; --accent-ink:#fff;
  --accent-soft:#e8eeff; --ok:#1a7f4b; --ok-soft:#e6f6ee; --bad:#c0262d; --bad-soft:#fdecec; --warn:#a15c00; --warn-soft:#fff4e0;
  --focus:0 0 0 3px #fff, 0 0 0 5px #2f5bea; --r:12px; --panel:420px;
  font:15px/1.45 "Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif; color:var(--ink);
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg)}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:8px;top:-60px;background:var(--accent);color:#fff;padding:8px 12px;border-radius:8px;z-index:50}
.skip:focus{top:8px}
.muted{color:var(--muted)} .small{font-size:12.5px;margin:6px 0 0}

/* ── шапка ── */
.top{height:56px;display:flex;align-items:center;gap:14px;padding:0 14px;background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:5}
.brand{display:flex;align-items:center;gap:10px;color:var(--accent);flex:none}
.brand svg{width:30px;height:30px}
.brand b{display:block;color:var(--ink);font-size:16px;line-height:1.1}
.brand span{font-size:11.5px;color:var(--muted)}
.cfg-name{flex:1;min-width:120px;max-width:380px}
.cfg-name input{width:100%;border:1px solid transparent;background:#f5f6f9;border-radius:8px;padding:7px 10px;font-weight:600}
.cfg-name input:hover{border-color:var(--line)}
.top-actions{display:flex;gap:6px;margin-left:auto;position:relative}
.top-actions button,.stage-bar button,.export button,.menu button,dialog menu button{
  border:1px solid var(--line);background:#fff;border-radius:9px;padding:7px 12px;white-space:nowrap}
.top-actions button:hover,.stage-bar button:hover{border-color:#c5cad6;background:#f8f9fb}
button.ghost{background:transparent}
button.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
button.primary:hover{filter:brightness(1.07)}
button.danger{background:var(--bad);border-color:var(--bad);color:#fff;font-weight:600}
button:disabled,button[aria-disabled="true"]{opacity:.5;cursor:not-allowed;filter:none}
.menu{position:absolute;right:0;top:44px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(20,30,60,.15);padding:6px;display:flex;flex-direction:column;gap:4px;min-width:250px;z-index:20}
.menu[hidden]{display:none}
.menu button{border:0;text-align:left}
.menu button:hover{background:var(--accent-soft)}

/* ── раскладка ── */
.layout{display:grid;grid-template-columns:minmax(0,1fr) var(--panel);height:calc(100% - 56px)}
.stage{position:relative;min-height:0;background:radial-gradient(120% 90% at 40% 20%,#fbfcfe 0%,#e7eaf1 60%,#dde1ea 100%)}
.viewport{position:absolute;inset:0;outline:none}
.viewport:focus-visible{box-shadow:inset 0 0 0 3px var(--accent);border-radius:0}
.viewport canvas{display:block}
.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;background:rgba(238,240,244,.92);z-index:3;text-align:center;padding:24px}
.overlay[hidden]{display:none}
.spinner{width:42px;height:42px;border-radius:50%;border:4px solid #d4d9e4;border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.nogl div{max-width:460px;background:#fff;border-radius:var(--r);padding:22px 24px;box-shadow:0 8px 30px rgba(20,30,60,.1)}
.nogl h2{margin:0 0 8px;font-size:18px}
.stage-bar{position:absolute;left:12px;top:12px;display:flex;flex-wrap:wrap;gap:6px;z-index:2;max-width:calc(100% - 24px)}
.stage-bar button,.stage-bar .chk{background:rgba(255,255,255,.94);backdrop-filter:blur(4px)}
.stage-bar button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.chk{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:9px;padding:6px 11px;cursor:pointer;user-select:none}
.chk input{width:17px;height:17px;accent-color:var(--accent);margin:0}
.chk.big{border:0;padding:8px 0 0}
.stage-note{position:absolute;left:12px;top:58px;margin:0;background:var(--warn-soft);color:var(--warn);font-size:12.5px;padding:4px 10px;border-radius:8px;z-index:2}
.stage-hint{position:absolute;left:12px;bottom:10px;margin:0;font-size:12.5px;color:var(--muted);background:rgba(255,255,255,.8);padding:4px 10px;border-radius:8px;pointer-events:none}
.pick-info{position:absolute;right:12px;bottom:46px;z-index:2;max-width:290px}
.pick-info .box{background:#fff;border-radius:10px;padding:10px 12px;box-shadow:0 6px 20px rgba(20,30,60,.12);font-size:13px;border-left:4px solid var(--accent)}
.pick-info .box.bad{border-left-color:var(--bad)}
.pick-info b{display:block;font-size:14px}

/* подписи размеров (CSS2D) */
.dim{font:600 11.5px/1 "Segoe UI",system-ui,sans-serif;background:rgba(29,35,48,.86);color:#fff;padding:4px 7px;border-radius:6px;white-space:nowrap;pointer-events:none}
.dim.ok{background:rgba(26,127,75,.92)} .dim.bad{background:rgba(192,38,45,.95)} .dim.zone{background:rgba(47,91,234,.9)}

/* ── панель ── */
.panel{display:flex;flex-direction:column;min-height:0;background:#f7f8fa;border-left:1px solid var(--line)}
.panel-scroll{overflow:auto;flex:1;padding:10px 12px 18px;scroll-behavior:smooth}
.sec{background:var(--card);border-radius:var(--r);padding:12px 14px 14px;margin-bottom:10px;border:2px solid transparent;transition:border-color .25s, box-shadow .25s}
.sec.picked{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.sec.has-error{border-color:#f2b8bb}
.sec.picked.has-error{border-color:var(--bad)}
.sec h2{font-size:15px;margin:0 0 10px;display:flex;align-items:center;gap:8px}
.sec h2 small{font-weight:400;color:var(--muted);font-size:12px}
.num{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-size:12px}
.show3d{margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:8px;width:30px;height:28px;color:var(--accent)}
.sub-h{font-size:12.5px;color:var(--muted);margin:12px 0 6px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(118px,1fr));gap:8px}
.card{position:relative;text-align:left;border:1.5px solid var(--line);background:#fff;border-radius:10px;padding:8px 10px 9px;display:flex;flex-direction:column;gap:2px;min-height:76px}
.card:hover{border-color:#b8c2da}
.card .nm{font-weight:600;font-size:13.5px;padding-right:18px}
.card .dm{font-size:11.5px;color:var(--muted)}
.card .pr{font-size:13px;margin-top:auto}
.card .st{font-size:11px;color:var(--muted)}
.card .st.zero{color:var(--bad);font-weight:600}
.card .st.low{color:var(--warn);font-weight:600}
.card[aria-checked="true"],.card[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}
.card[aria-checked="true"]::after,.card[aria-pressed="true"]::after{content:"✓";position:absolute;right:8px;top:6px;color:#fff;background:var(--accent);width:18px;height:18px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700}
.card.none .nm{color:var(--muted)}
.card.warn{border-style:dashed}
.card.conflict{border-color:var(--bad)}
.card.conflict[aria-checked="true"]{background:var(--bad-soft);box-shadow:inset 0 0 0 1px var(--bad)}
.card.conflict[aria-checked="true"]::after{content:"!";background:var(--bad)}
.swatches{display:flex;flex-wrap:wrap;gap:8px}
.sw{display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:5px 12px 5px 6px;font-size:13px}
.sw i{width:22px;height:22px;border-radius:50%;border:1px solid rgba(0,0,0,.15);flex:none}
.sw small{color:var(--muted)}
.sw[aria-checked="true"]{border-color:var(--accent);background:var(--accent-soft);font-weight:600}
.sw[aria-checked="true"] i{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--accent)}
.seg{display:inline-flex;border:1.5px solid var(--line);border-radius:9px;margin-top:10px;overflow:hidden}
.seg button{border:0;background:#fff;padding:6px 14px}
.seg button[aria-checked="true"]{background:var(--accent);color:#fff;font-weight:600}
.seg button:disabled{opacity:.45}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:10px 12px}
.field{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:var(--muted)}
.field input{border:1.5px solid var(--line);border-radius:8px;padding:7px 9px;width:100%;color:var(--ink);font-size:15px;background:#fff}
.field input[aria-invalid="true"]{border-color:var(--bad);background:var(--bad-soft)}
.field .err{font-style:normal;color:var(--bad);font-size:12px;min-height:0}
.field .err:not(:empty)::before{content:"⚠ "}
.stepper{display:flex}
.stepper button{border:1.5px solid var(--line);background:#fff;width:34px;flex:none}
.stepper button:first-child{border-radius:8px 0 0 8px;border-right:0}
.stepper button:last-child{border-radius:0 8px 8px 0;border-left:0}
.stepper input{border-radius:0;text-align:center}

/* проверки */
.ok-box{display:flex;gap:10px;align-items:flex-start;background:var(--ok-soft);color:var(--ok);border-radius:10px;padding:10px 12px;font-weight:600}
.issue{border:1px solid #f1c3c5;background:var(--bad-soft);border-radius:10px;padding:10px 12px;margin-bottom:8px}
.issue h3{margin:0 0 3px;font-size:14px;color:var(--bad);display:flex;gap:6px;align-items:baseline}
.issue h3::before{content:"⛔";font-size:13px}
.issue p{margin:0 0 8px;font-size:13.5px}
.issue .acts{display:flex;flex-wrap:wrap;gap:6px}
.issue .acts button{border:1px solid #e3a5a8;background:#fff;border-radius:8px;padding:5px 10px;font-size:13px}
.issue .acts button.fix{border-color:var(--accent);color:var(--accent);font-weight:600}
.issue .acts button.fix::before{content:"✓ "}

/* расчёт */
.calc{width:100%;border-collapse:collapse;font-size:13px}
.calc td{padding:5px 0;border-bottom:1px solid var(--line);vertical-align:top}
.calc td.r{text-align:right;white-space:nowrap;padding-left:8px}
.calc .v{display:block;color:var(--muted);font-size:11.5px}
.calc .id{color:var(--muted);font-size:11px;font-family:ui-monospace,Consolas,monospace}
.totals{margin-top:8px;font-size:13.5px}
.totals div{display:flex;justify-content:space-between;padding:3px 0}
.totals .neg b{color:var(--ok)}
.totals .big{border-top:2px solid var(--ink);margin-top:6px;padding-top:8px;font-size:18px;font-weight:700}
.export{display:flex;flex-direction:column;gap:8px}
.export button{text-align:left;padding:10px 14px}

.sticky-total{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(20,30,60,.05)}
.sticky-total .lbl{display:block;font-size:11.5px;color:var(--muted)}
.sticky-total b{font-size:20px}
.state{font-size:13px;font-weight:600;border-radius:999px;padding:5px 11px;text-align:right}
.state.ok{background:var(--ok-soft);color:var(--ok)}
.state.bad{background:var(--bad-soft);color:var(--bad);cursor:pointer;border:0}

/* диалог и уведомления */
dialog{border:0;border-radius:14px;padding:0;max-width:min(520px,calc(100vw - 32px));box-shadow:0 20px 60px rgba(20,30,60,.3)}
dialog::backdrop{background:rgba(20,26,40,.45)}
dialog form{padding:20px 22px 16px}
dialog h2{margin:0 0 10px;font-size:18px}
dialog ul{padding-left:18px;margin:8px 0}
dialog menu{display:flex;justify-content:flex-end;gap:8px;padding:0;margin:16px 0 0}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#1d2330;color:#fff;padding:10px 16px;border-radius:10px;z-index:60;max-width:calc(100vw - 32px);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.help li{margin-bottom:4px}
kbd{background:#f1f3f7;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;padding:0 5px;font-size:12px}

/* ── узкие экраны ── */
@media (max-width:1100px){ :root{--panel:370px} .top-actions button span{display:none} }
@media (max-width:860px){
  html,body{height:auto}
  .top{height:auto;flex-wrap:wrap;padding:8px 12px;gap:8px}
  .brand span{display:none}
  .cfg-name{order:3;flex-basis:100%;max-width:none}
  .layout{display:block;height:auto}
  .stage{height:58vh;min-height:320px}
  .stage-hint{display:none}
  .stage-bar{gap:4px} .stage-bar button,.stage-bar .chk{padding:5px 8px;font-size:13px}
  .pick-info{left:12px;right:12px;top:auto;bottom:10px;max-width:none}
  .panel{border-left:0}
  .panel-scroll{overflow:visible;padding:10px 10px 4px}
  .sticky-total{position:sticky;bottom:0;z-index:4}
  .menu{right:0}
}
@media (max-width:420px){
  .fields{grid-template-columns:1fr 1fr}
  .cards{grid-template-columns:1fr 1fr}
  .stage-note{top:auto;bottom:10px}
}
@media (prefers-reduced-motion:reduce){ *{scroll-behavior:auto!important;transition:none!important} .spinner{animation-duration:3s} }
@media print{ body *{visibility:hidden} }

/* режимы и планировщик */
.mode-tabs{position:absolute;left:50%;transform:translateX(-50%);bottom:44px;z-index:3;display:flex;background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:12px;padding:3px;gap:3px;box-shadow:0 4px 18px rgba(20,30,60,.12)}
.mode-tabs button{border:0;background:transparent;border-radius:9px;padding:7px 14px;font-weight:600;color:var(--muted)}
.mode-tabs button[aria-selected="true"]{background:var(--accent);color:#fff}
.plan-acts{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.plan-acts button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 10px;font-size:13px}
.plan-list{margin:10px 0 0;padding-left:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:6px}
.plan-list button{width:100%;text-align:left;border:1.5px solid var(--line);background:#fff;border-radius:8px;padding:6px 8px;font-size:12.5px}
.plan-list button[aria-pressed="true"]{border-color:var(--accent);background:var(--accent-soft);font-weight:600}
.plan-list button.bad{border-color:var(--bad);background:var(--bad-soft)}
.plan-warn{background:var(--warn-soft);color:var(--warn);border-radius:8px;padding:7px 10px;font-size:13px;margin-top:8px}
.plan-warn::before{content:"⚠ "}
body.planner #sec-desk,body.planner #sec-chair,body.planner #sec-pedestal,body.planner #sec-screen,body.planner #sec-acc{display:none}
@media (max-width:860px){ .mode-tabs{bottom:10px} .pick-info{bottom:62px} }
.perf{position:absolute;left:12px;top:58px;z-index:2;margin:0;font:11.5px/1.45 ui-monospace,Consolas,monospace;background:rgba(17,20,26,.82);color:#d8f5d0;padding:6px 9px;border-radius:8px;white-space:pre-wrap;max-width:min(560px,calc(100% - 24px));pointer-events:none}
.rot-acts{display:flex;align-items:center;gap:6px;margin-top:6px;flex-wrap:wrap}
.rot-acts button{border:1px solid var(--line);background:#fff;border-radius:7px;padding:3px 8px;font-size:12.5px}
.open-list{list-style:none;padding:0;margin:6px 0 0;display:flex;flex-direction:column;gap:6px}
.open-row{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-size:12.5px;border:1px solid var(--line);border-radius:8px;padding:6px 8px}
.open-row input{width:72px;border:1px solid var(--line);border-radius:6px;padding:3px 6px}
.open-row input[aria-invalid="true"]{border-color:var(--bad);background:var(--bad-soft)}
.open-row select{border:1px solid var(--line);border-radius:6px;padding:3px}
.open-row button{margin-left:auto;border:1px solid var(--line);background:#fff;border-radius:6px;padding:2px 8px}
.map-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:6px;font-size:12px}
.map-grid label{display:flex;flex-direction:column;gap:2px}
.map-grid input{border:1px solid var(--line);border-radius:6px;padding:4px 6px}
/* учётная запись, заказы, учебная оплата */
.top-actions button.account.signed{border-color:var(--ok);color:var(--ok)}
dialog.wide{max-width:min(760px,calc(100vw - 32px));width:760px}
dialog .err{color:var(--bad)}
button.link{border:0;background:none;padding:0;color:var(--accent);text-decoration:underline;cursor:pointer;font:inherit}
.acc-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin:0 0 12px;flex-wrap:wrap}
.acc-tabs button{border:0;background:none;padding:8px 10px;border-bottom:3px solid transparent;cursor:pointer;font:inherit;color:var(--muted)}
.acc-tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}
.acc-body{max-height:min(56vh,480px);overflow:auto}
.acc-list{list-style:none;padding:0!important;margin:0}
.acc-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.acc-list li>div:first-child{display:flex;flex-direction:column;min-width:0}
.acc-acts{display:flex;gap:6px;flex-wrap:wrap}
.acc-acts button,.pay-alt button{border:1px solid var(--line);background:#fff;border-radius:8px;padding:5px 9px;cursor:pointer;font:inherit;font-size:13px}
.acc-acts button.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.badge{display:inline-block;align-self:flex-start;font-size:12px;padding:1px 8px;border-radius:99px;background:var(--accent-soft);color:var(--accent);font-weight:600}
.badge.st-paid{background:var(--ok-soft);color:var(--ok)} .badge.st-bad{background:var(--bad-soft);color:var(--bad)} .badge.st-off{background:#eef0f4;color:var(--muted)}
.edu-banner{border:2px dashed var(--warn);background:var(--warn-soft);color:#6b3d00;border-radius:10px;padding:10px 12px;margin:0 0 12px}
.pay-sum{font-size:22px}
.pay-alt{display:flex;gap:6px;flex-wrap:wrap}
.stock-tbl td,.stock-tbl th{vertical-align:middle}
.stock-tbl td.acc-acts{display:table-cell;white-space:nowrap}
.stock-tbl td.acc-acts button{margin-left:4px}
.acc-body table.calc{width:100%}
.acc-body .calc th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;padding:4px 0;border-bottom:1px solid var(--line)}
.acc-body .calc th.r{text-align:right}
.acc-body .calc td{padding:6px 4px 6px 0;vertical-align:middle}
.acc-body .stock-tbl,.acc-body .moves-tbl{min-width:600px}
.acc-body .calc th.r{padding-left:8px}
.plan-acts select{border:1px solid var(--line);border-radius:8px;padding:5px 6px;font-size:13px;max-width:100%}
.furn-list .furn-row{display:flex;gap:4px}
.furn-list .furn-row>button:first-child{flex:1}
.furn-list .furn-row>button[data-del-furn]{width:auto;flex:none;padding:4px 8px}
.btn-pair{display:inline-flex}
.btn-pair[hidden]{display:none}
.btn-pair button:first-child{border-top-right-radius:0;border-bottom-right-radius:0}
.btn-pair button:last-child{border-top-left-radius:0;border-bottom-left-radius:0;margin-left:-1px}
#btnDrafts .count:not(:empty){display:inline-block;min-width:18px;padding:0 5px;border-radius:9px;background:var(--accent);color:#fff;font-size:11px;line-height:18px}
.acc-list li.current{background:var(--accent-soft);border-radius:8px;padding-left:8px;padding-right:8px}
#dlgBody p > button:not(.link){border:1px solid var(--line);background:#fff;border-radius:8px;padding:6px 12px;cursor:pointer;font:inherit;font-size:13.5px}
#dlgBody p > button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.furn-list{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
/* AR и QR */
.ar-overlay{position:fixed;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:16px;pointer-events:none;z-index:80}
.ar-overlay[hidden]{display:none}
.ar-hint{margin:0;align-self:center;background:rgba(20,26,40,.75);color:#fff;padding:10px 14px;border-radius:12px;font-size:15px;max-width:440px;text-align:center}
.ar-acts{display:flex;gap:8px;justify-content:center;pointer-events:auto}
.ar-acts button{border:0;border-radius:12px;padding:12px 16px;font-size:16px;background:rgba(255,255,255,.95)}
.ar-acts button.primary{background:var(--accent);color:#fff}
.qr{display:flex;justify-content:center;margin:8px auto;max-width:260px}
.qr svg{width:100%;height:auto;background:#fff;border-radius:8px}