:root{
  --paper:#FAF7F0; --paper-2:#F1ECDF; --ink:#20283A; --ink-soft:#5B6172;
  --line:#DED4B8; --stamp:#B0402A; --stamp-dark:#8F3120; --stamp-tint:#F4E2DC;
  --ok:#3C7A54; --ok-tint:#DEEDE2; --warn:#B0402A; --warn-tint:#F6E1DA;
  --white:#FFFDF9; --radius:10px;
  --shadow:0 1px 2px rgba(32,40,58,.06), 0 6px 20px rgba(32,40,58,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--paper);color:var(--ink);
  font-family:'Vazirmatn',Tahoma,'Segoe UI',sans-serif;font-size:15px;line-height:1.7}
a{color:var(--stamp);text-decoration:none}
a:hover{text-decoration:underline}
::selection{background:var(--stamp-tint)}

/* ---------- shell ---------- */
.app{display:flex;min-height:100vh}
.sidebar{width:215px;flex:none;background:var(--ink);color:var(--paper);
  display:flex;flex-direction:column;padding:20px 14px;gap:2px}
.brand{display:flex;align-items:center;gap:10px;padding:0 6px 18px;margin-bottom:10px;
  border-bottom:1px solid rgba(250,247,240,.14)}
.brand-mark{width:36px;height:36px;border-radius:8px;background:var(--stamp);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
  color:var(--white);flex:none}
.brand-name{font-weight:700;font-size:14.5px}
.brand-sub{font-size:11.5px;color:rgba(250,247,240,.55)}
.sidebar nav{display:flex;flex-direction:column;gap:2px;flex:1}
.sidebar nav a{color:rgba(250,247,240,.72);padding:9px 12px;border-radius:8px;font-size:13.5px}
.sidebar nav a:hover{background:rgba(250,247,240,.08);color:var(--white);text-decoration:none}
.sidebar nav a.active{background:var(--stamp);color:var(--white);font-weight:600}
.side-foot{border-top:1px solid rgba(250,247,240,.14);padding-top:12px;font-size:12px;
  color:rgba(250,247,240,.6)}
.side-foot a{color:#F0B6AA}

.content{flex:1;padding:22px 26px;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:flex-end;
  flex-wrap:wrap;gap:10px;margin-bottom:16px}
.page-title{font-size:20px;margin:0;font-weight:700}
.page-sub{font-size:12.5px;color:var(--ink-soft)}
@media(max-width:820px){
  .app{flex-direction:column}
  .sidebar{width:auto;flex-direction:row;flex-wrap:wrap;padding:12px;align-items:center}
  .sidebar nav{flex-direction:row;flex-wrap:wrap;flex:1}
  .brand{border:0;padding:0 10px 0 0;margin:0}
  .side-foot{border:0;padding:0}
  .content{padding:16px}
}

/* ---------- cards ---------- */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;margin-bottom:16px;box-shadow:var(--shadow)}
.card-title{font-weight:700;font-size:14px;margin-bottom:12px;
  padding-bottom:8px;border-bottom:1px solid var(--line)}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(330px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fit,minmax(175px,1fr))}

.tile{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px;box-shadow:var(--shadow)}
.tile .t-label{font-size:12.5px;color:var(--ink-soft)}
.tile .t-value{font-size:21px;font-weight:700;margin-top:2px;font-variant-numeric:tabular-nums}
.tile.accent{border-top:3px solid var(--stamp)}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--white);margin-bottom:16px}
.card .table-wrap{border:0;margin-bottom:0}
table{width:100%;border-collapse:collapse;font-size:13.5px;background:transparent}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:right;vertical-align:middle}
th{background:var(--paper-2);font-weight:700;color:var(--ink);white-space:nowrap;font-size:13px}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--paper)}
td.num,th.num{text-align:center;font-variant-numeric:tabular-nums}
.empty{text-align:center;color:var(--ink-soft);padding:22px;font-size:13.5px}

/* ---------- forms ---------- */
.row{display:flex;gap:12px;flex-wrap:wrap}
.field{flex:1;min-width:150px;display:flex;flex-direction:column}
.field label,label{font-size:12.5px;color:var(--ink-soft);margin-bottom:4px;display:block}
input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);
  border-radius:8px;font-family:inherit;font-size:14px;background:var(--white);color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--stamp-tint);border-color:var(--stamp)}
input[type=checkbox]{width:auto}
.chk{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink)}

.btn{display:inline-block;border:1px solid var(--line);background:var(--white);color:var(--ink);
  padding:8px 16px;border-radius:8px;cursor:pointer;font-family:inherit;font-size:14px;
  text-align:center;white-space:nowrap}
.btn:hover{background:var(--paper-2);text-decoration:none}
.btn.primary{background:var(--stamp);border-color:var(--stamp);color:var(--white)}
.btn.primary:hover{background:var(--stamp-dark)}
.btn.danger{color:var(--stamp);border-color:var(--stamp-tint);background:var(--stamp-tint)}
.btn.big{padding:11px 22px;font-size:15px;width:100%;margin-top:8px}
.btn.sm{padding:3px 9px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:default}

.alert{padding:9px 13px;border-radius:8px;margin-bottom:12px;font-size:13.5px}
.alert.ok{background:var(--ok-tint);color:var(--ok);border:1px solid #BEDCC9}
.alert.warn{background:var(--warn-tint);color:var(--warn);border:1px solid #EBC6BC}
.alert.err{background:var(--stamp-tint);color:var(--stamp-dark);border:1px solid #E7BDB1}
.muted{color:var(--ink-soft);font-size:12.5px}
.badge{display:inline-block;padding:1px 9px;border-radius:20px;font-size:12px}
.badge.ok{background:var(--ok-tint);color:var(--ok)}
.badge.warn{background:var(--warn-tint);color:var(--warn)}
.badge.err{background:var(--stamp-tint);color:var(--stamp-dark)}

/* ---------- login ---------- */
.plain-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.login-card{width:350px}
.login-card h1{font-size:17px;text-align:center;margin:0 0 16px}

/* ---------- sale ---------- */
.search-box{position:relative}
#suggest{position:absolute;z-index:60;top:calc(100% + 2px);right:0;left:0;background:var(--white);
  border:1px solid var(--line);border-radius:8px;max-height:300px;overflow:auto;
  box-shadow:var(--shadow);display:none}
#suggest .item{padding:8px 10px;cursor:pointer;border-bottom:1px solid var(--paper-2);font-size:13.5px}
#suggest .item:last-child{border-bottom:0}
#suggest .item.sel,#suggest .item:hover{background:var(--stamp-tint)}
#suggest .sc{color:var(--ink-soft);font-size:12px}
#suggest .out{color:var(--stamp)}
#cartBody input{padding:5px 6px;text-align:center;font-size:13.5px}
#cartBody input.qty{width:72px}
#cartBody input.price{width:104px}
#cartBody input.disc{width:66px}

.summary-line{display:flex;justify-content:space-between;align-items:center;
  padding:7px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.summary-line .num{font-variant-numeric:tabular-nums;font-weight:600}
.summary-line.saving{color:var(--ok)}
.summary-line.total{border-bottom:0;padding-top:12px;font-size:17px;font-weight:700}
.summary-line.total .num{font-size:19px;color:var(--stamp)}
.summary-line.shop-profit{margin-top:8px;border-top:1px dashed var(--line);
  border-bottom:0;padding-top:10px;color:var(--ink-soft)}

/* ---------- print ---------- */
.invoice-paper{background:var(--white);max-width:760px;margin:0 auto;padding:22px;
  border:1px solid var(--line);border-radius:var(--radius)}
.invoice-paper h2{text-align:center;margin:0 0 4px}
.inv-meta{display:flex;justify-content:space-between;flex-wrap:wrap;font-size:13px;
  border-bottom:2px solid var(--ink);padding-bottom:8px;margin-bottom:10px}
.inv-total-box{margin-top:12px;display:flex}
.inv-total-box table{width:330px;border:1px solid var(--line)}
.no-print{margin:14px auto;max-width:760px;display:flex;gap:10px;flex-wrap:wrap}
@media print{
  .no-print,.sidebar,.side-foot{display:none!important}
  body{background:#fff;font-size:12pt}
  .content{padding:0}
  .invoice-paper{border:0;max-width:none;padding:0;box-shadow:none}
  table{font-size:11pt}
  th{background:#eee!important;-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

/* ---------- کلاس‌های مشترک صفحات دیگر ---------- */
.inline-form{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.inline-form label{margin-bottom:0;min-width:150px;flex:1}
.inline-form .btn{height:38px}
.hint{font-size:12px;color:var(--ink-soft);margin-top:8px;line-height:1.9}
.saving{color:var(--ok);font-weight:700}
.profit-line{color:var(--ok)}
main label input,main label select{margin-top:2px}