:root{
  --bg:#0f1115;
  --bg-2:#161a22;
  --panel:#1b202b;
  --panel-2:#212735;
  --border:#2a3140;
  --text:#e7ecf3;
  --muted:#8b95a7;
  --primary:#5b8cff;
  --primary-2:#3f6fe0;
  --green:#28c76f;
  --green-soft:rgba(40,199,111,.14);
  --red:#ff5b6e;
  --red-soft:rgba(255,91,110,.14);
  --amber:#ffb547;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:'Inter',system-ui,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer;color:inherit}
input,select,textarea{font-family:inherit}
[hidden]{display:none !important}

/* ===== Login ===== */
.login-screen{position:fixed;inset:0;display:grid;place-items:center;background:radial-gradient(1200px 600px at 50% -10%,#1c2436,#0f1115);z-index:60;padding:20px}
.login-card{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:34px;width:100%;max-width:380px;box-shadow:var(--shadow)}
.login-logo{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--primary),#8a5bff);display:grid;place-items:center;font-weight:800;font-size:20px;color:#fff;margin:0 auto 18px;box-shadow:0 8px 22px rgba(91,140,255,.45)}
.login-logo img{width:60%;height:60%;display:block}
.login-card h1{text-align:center;font-size:22px;margin:0 0 4px}
.login-card .login-sub{text-align:center;color:var(--muted);font-size:13.5px;margin-bottom:24px}
.login-card .field{margin-bottom:14px}
.login-err{background:var(--red-soft);color:var(--red);padding:10px 14px;border-radius:10px;font-size:13.5px;margin-bottom:14px}
.login-hint{text-align:center;color:var(--muted);font-size:12px;margin-top:16px;line-height:1.5}

.app{display:flex;min-height:100vh}

/* ===== Sidebar ===== */
.sidebar{width:248px;flex-shrink:0;background:linear-gradient(180deg,var(--bg-2),#10141b);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:20px 16px;position:sticky;top:0;height:100vh}
.brand{display:flex;align-items:center;gap:12px;padding:4px 6px 20px}
.brand-logo{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#8a5bff);display:grid;place-items:center;font-weight:800;font-size:16px;color:#fff;box-shadow:0 6px 16px rgba(91,140,255,.4)}
.brand-logo img{width:60%;height:60%;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-weight:700;font-size:17px}
.brand-sub{font-size:12px;color:var(--muted)}

.nav{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.nav-item{display:flex;align-items:center;gap:12px;background:transparent;border:none;color:var(--muted);padding:11px 12px;border-radius:10px;font-size:14.5px;font-weight:500;text-align:left;transition:.15s}
.nav-item:hover{background:var(--panel);color:var(--text)}
.nav-item.active{background:var(--panel-2);color:var(--text);box-shadow:inset 0 0 0 1px var(--border)}
.nav-ico{font-size:16px;width:20px;text-align:center}
.nav-badge{margin-left:auto;background:var(--red);color:#fff;font-size:11.5px;font-weight:700;min-width:20px;height:20px;border-radius:10px;display:inline-grid;place-items:center;padding:0 6px}
.prod-thumb{width:42px;height:42px;border-radius:9px;object-fit:cover;background:var(--bg-2);flex-shrink:0}
.prod-thumb-ph{width:42px;height:42px;border-radius:9px;background:var(--bg-2);display:grid;place-items:center;font-size:18px;opacity:.6;flex-shrink:0}
.img-drop{display:flex;align-items:center;gap:14px}
.img-preview{width:84px;height:84px;border-radius:12px;object-fit:cover;background:var(--bg-2);border:1px solid var(--border)}
.img-preview-ph{width:84px;height:84px;border-radius:12px;background:var(--bg-2);border:1px dashed var(--border);display:grid;place-items:center;font-size:30px;opacity:.6}

.sidebar-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.user-chip{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:10px 12px}
.user-ava{width:34px;height:34px;border-radius:50%;background:var(--panel-2);display:grid;place-items:center;font-weight:700;font-size:14px;color:var(--primary);flex-shrink:0}
.user-chip .uc-name{font-size:13.5px;font-weight:600;line-height:1.1}
.user-chip .uc-role{font-size:11.5px;color:var(--muted)}
.logout-btn{background:transparent;border:none;color:var(--muted);margin-left:auto;font-size:16px;padding:4px}
.logout-btn:hover{color:var(--red)}

/* ===== Main ===== */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 28px;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(15,17,21,.85);backdrop-filter:blur(8px);z-index:5}
.topbar h1{font-size:20px;margin:0;font-weight:700}
.topbar-actions{display:flex;gap:10px;align-items:center}
.search{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:9px 14px;border-radius:10px;width:240px;font-size:14px;outline:none}
.search:focus{border-color:var(--primary)}
.content{padding:24px 28px;max-width:1220px;width:100%}

/* ===== KPI ===== */
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:22px}
.kpi{background:linear-gradient(160deg,var(--panel),var(--panel-2));border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px}
.kpi-label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
.kpi-value{font-size:25px;font-weight:800;margin-top:8px;letter-spacing:-.02em}
.kpi-sub{font-size:12.5px;color:var(--muted);margin-top:6px}
.kpi.green .kpi-value{color:var(--green)}
.kpi.blue .kpi-value{color:var(--primary)}
.kpi.amber .kpi-value{color:var(--amber)}

.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:12px;flex-wrap:wrap}
.panel-head h2{font-size:16px;margin:0;font-weight:600}
.panel-head .sub{font-size:13px;color:var(--muted)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;background:var(--panel-2);color:var(--text);border:1px solid var(--border);padding:10px 16px;border-radius:10px;font-size:14px;font-weight:600;transition:.15s}
.btn:hover{border-color:var(--muted)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));border:none;color:#fff;box-shadow:0 6px 16px rgba(91,140,255,.35)}
.btn-primary:hover{filter:brightness(1.07)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;filter:none}
.btn-danger{background:var(--red-soft);border-color:transparent;color:var(--red)}
.btn-ghost{background:transparent}
.btn-sm{padding:7px 11px;font-size:13px}
.btn-block{width:100%}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--border)}
table.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
table.tbl th,table.tbl td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
table.tbl th{background:var(--bg-2);color:var(--muted);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.03em}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover{background:var(--panel-2)}
.t-right{text-align:right}
.t-center{text-align:center}
.num{font-variant-numeric:tabular-nums}
.row-actions{display:flex;gap:6px;justify-content:flex-end}

.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.badge-green{background:var(--green-soft);color:var(--green)}
.badge-red{background:var(--red-soft);color:var(--red)}
.badge-amber{background:rgba(255,181,71,.14);color:var(--amber)}
.badge-muted{background:var(--panel-2);color:var(--muted)}
.profit-pos{color:var(--green);font-weight:600}
.profit-neg{color:var(--red);font-weight:600}

/* ===== Forms ===== */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--muted);font-weight:500}
.field input,.field select,.field textarea{background:var(--bg-2);border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:10px;font-size:14px;outline:none;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary)}
.hint{font-size:12px;color:var(--muted)}

/* ===== Sale builder ===== */
.sale-layout{display:grid;grid-template-columns:1fr 370px;gap:20px;align-items:start}
.cart-panel{position:sticky;top:90px}
.cart-line{display:flex;flex-direction:column;gap:9px;padding:12px 0;border-bottom:1px solid var(--border)}
.cart-line:last-child{border-bottom:none}
.ci-top{display:flex;align-items:flex-start;gap:8px}
.cart-line .ci-name{flex:1;font-size:13.5px;line-height:1.3}
.ci-bottom{display:flex;align-items:center;gap:8px}
.ci-x{color:var(--muted);font-size:13px}
.ci-price{display:flex;align-items:center;gap:3px;border:1px solid var(--border);border-radius:8px;padding:0 9px;height:32px;background:var(--bg-2)}
.ci-price:focus-within{border-color:var(--primary)}
.ci-price input{width:60px;height:30px;background:transparent;border:none;color:var(--text);font-size:13px;text-align:right;outline:none;font-variant-numeric:tabular-nums}
.ci-price input::-webkit-outer-spin-button,.ci-price input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.ci-price .cur{color:var(--muted);font-size:12px}
.qty-box{display:flex;align-items:center;border:1px solid var(--border);border-radius:8px;overflow:hidden;flex-shrink:0}
.qty-box button{background:var(--panel-2);border:none;color:var(--text);width:28px;height:30px;font-size:16px;line-height:1}
.qty-box input{width:42px;height:30px;text-align:center;background:var(--bg-2);border:none;border-left:1px solid var(--border);border-right:1px solid var(--border);color:var(--text);font-size:13px}
.cart-sum{font-weight:700;margin-left:auto;text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.cart-rm{background:transparent;border:none;color:var(--muted);font-size:16px;padding:4px}
.cart-rm:hover{color:var(--red)}
.cart-total{display:flex;justify-content:space-between;align-items:baseline;margin-top:14px;padding-top:14px;border-top:1px dashed var(--border)}
.cart-total .lbl{color:var(--muted);font-size:14px}
.cart-total .val{font-size:24px;font-weight:800}
.cart-line2{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:6px}
.cart-total.grand{padding-top:12px;border-top:1px solid var(--border)}
.cart-total.grand .val{color:var(--primary)}

/* контролы продажи: оплата / доставка / покупатель */
.sale-ctl-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin:14px 0 7px}
.seg{display:flex;gap:6px;background:var(--bg-2);border:1px solid var(--border);border-radius:10px;padding:4px}
.seg-btn{flex:1;background:transparent;border:none;color:var(--muted);padding:8px 6px;border-radius:7px;font-size:13px;font-weight:600;transition:.12s}
.seg-btn:hover{color:var(--text)}
.seg-btn.active{background:var(--primary);color:#fff;box-shadow:0 3px 10px rgba(91,140,255,.35)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}
.chip{background:var(--bg-2);border:1px solid var(--border);color:var(--muted);padding:6px 12px;border-radius:20px;font-size:12.5px;font-weight:600;transition:.12s;white-space:nowrap}
.chip:hover{color:var(--text);border-color:var(--muted)}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}
.cust-row{display:flex;gap:8px}
.cust-select{flex:1;background:var(--bg-2);border:1px solid var(--border);color:var(--text);padding:9px 11px;border-radius:10px;font-size:14px;outline:none}
.cust-select:focus{border-color:var(--primary)}
.cpick{position:relative;flex:1;min-width:0}
.cpick-input{width:100%;background:var(--bg-2);border:1px solid var(--border);color:var(--text);padding:9px 11px;border-radius:10px;font-size:14px;outline:none}
.cpick-input:focus{border-color:var(--primary)}
.cpick-list{position:absolute;top:calc(100% + 4px);left:0;right:0;z-index:20;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow);max-height:250px;overflow:auto;padding:4px}
.cpick-item{padding:9px 11px;border-radius:7px;font-size:13.5px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cpick-item:hover{background:var(--panel)}
.cpick-item.active{background:rgba(91,140,255,.2)}
.cpick-none{color:var(--muted)}
.cpick-empty{padding:9px 11px;font-size:12.5px;color:var(--muted)}

.prod-pick{display:grid;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));gap:10px;max-height:64vh;overflow:auto;padding-right:4px;align-content:start}
.pick-card{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:12px;text-align:left;transition:.15s;display:flex;flex-direction:column;gap:8px;height:128px}
.pick-card:hover{border-color:var(--primary);background:#283044;transform:translateY(-1px)}
.pick-card:disabled{opacity:.45;cursor:not-allowed;transform:none}
.pick-card .pc-name{font-size:12.5px;font-weight:600;line-height:1.3;color:var(--text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.pick-card .pc-bottom{margin-top:auto;display:flex;flex-direction:column;gap:4px}
.pick-card .pc-price{font-size:15px;font-weight:700;color:var(--primary)}
.pick-card .pc-meta{font-size:11.5px;color:var(--muted);display:flex;justify-content:space-between;gap:6px}
.pick-card .pc-meta span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.empty .em-ico{font-size:40px;margin-bottom:10px}

/* ===== Modal ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);display:grid;place-items:center;z-index:50;padding:20px}
.modal{background:var(--panel);border:1px solid var(--border);border-radius:16px;width:100%;max-width:560px;box-shadow:var(--shadow);max-height:92vh;overflow:auto}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}
.modal-head h3{margin:0;font-size:17px}
.modal-body{padding:22px}
.modal-foot{padding:16px 22px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:10px}
.modal-close{background:transparent;border:none;color:var(--muted);font-size:22px;line-height:1}

/* ===== Toast ===== */
.toast-wrap{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:10px;z-index:100}
.toast{background:var(--panel-2);border:1px solid var(--border);border-left:3px solid var(--primary);padding:13px 18px;border-radius:10px;font-size:14px;box-shadow:var(--shadow);animation:slideIn .25s ease;max-width:340px}
.toast.ok{border-left-color:var(--green)}
.toast.err{border-left-color:var(--red)}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:none}}

.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.filters select,.filters input{background:var(--panel);border:1px solid var(--border);color:var(--text);padding:9px 12px;border-radius:10px;font-size:14px;outline:none}
.spacer{flex:1}

/* ===== Receipt ===== */
#printArea{position:fixed;left:-9999px;top:0}
.receipt{background:#fff;color:#111;padding:28px;font-size:13px;font-family:Arial,sans-serif;width:720px}
.receipt h2{text-align:center;margin:0 0 4px}
.receipt .r-sub{text-align:center;color:#555;margin-bottom:18px}
.receipt table{width:100%;border-collapse:collapse}
.receipt th,.receipt td{border:1px solid #bbb;padding:7px 9px}
.receipt th{background:#f1f3f7;font-size:12px}
.receipt .r-total{text-align:right;font-size:16px;font-weight:800;margin-top:14px}
.receipt .r-foot{margin-top:10px;color:#444}

.bar{height:8px;background:var(--panel-2);border-radius:6px;overflow:hidden;margin-top:6px}
.bar > span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#8a5bff)}

.loader{text-align:center;padding:60px;color:var(--muted)}

@media (max-width:880px){
  .sidebar{display:none}
  .sale-layout{grid-template-columns:1fr}
  .cart-panel{position:static}
  .search{width:150px}
}

@media print{
  body *{visibility:hidden}
  #printArea,#printArea *{visibility:visible}
  #printArea{position:absolute;left:0;top:0;width:100%}
}