:root{
  --ink-bg: #f4f6f9; --panel: #ffffff; --panel-2: #f0f4f8; --line: #cbd5e1; --line-soft: #e2e8f0;
  --text: #1e293b; --muted: #64748b; --muted-2: #94a3b8; --cyan: #006E74; --cyan-dim: #e0f2fe;
  --magenta: #db2777; --magenta-dim: #fce7f3; --yellow: #d97706; --yellow-dim: #fef3c7;
  --green: #16a34a; --green-dim: #dcfce7; --orange: #EE7601; --radius: 10px;
}
*{box-sizing:border-box;} html,body{margin:0;padding:0;}
body{ background:var(--ink-bg); color:var(--text); font-family:'Inter','Noto Sans Bengali',sans-serif; min-height:100vh; -webkit-font-smoothing:antialiased; }
h1,h2,h3,.disp{font-family:'Barlow Condensed','Noto Sans Bengali',sans-serif; font-weight:700; letter-spacing:.01em;}
.mono{font-family:'JetBrains Mono',monospace;}
a{color:inherit;} button{font-family:inherit;}

#loginScreen { position: fixed; inset: 0; background: #e2e8f0; display: flex; align-items: center; justify-content: center; z-index: 999; }
.login-card { background: #ffffff; border: 1px solid var(--line); border-radius: 12px; padding: 32px; max-width: 440px; width: 92%; box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1); }

#app{display:none; min-height:100vh;}
.sidebar{ width:240px; flex-shrink:0; background:var(--panel); border-right:1px solid var(--line-soft); display:flex; flex-direction:column; position:sticky; top:0; height:100vh; }
.brand{ padding:16px 12px; border-bottom:1px dashed var(--line); position:relative; display:flex; align-items:center; justify-content:center; }
.brand .crop{position:absolute; width:9px; height:9px;}
.brand .crop.tl{top:8px; left:8px; border-top:1px solid var(--cyan); border-left:1px solid var(--cyan);}
.brand .crop.br{bottom:8px; right:8px; border-bottom:1px solid var(--cyan); border-right:1px solid var(--cyan);}

.nav{padding:14px 10px; flex:1; overflow-y:auto;}
.nav-item{ display:flex; align-items:center; gap:10px; padding:10px 12px; border-radius:8px; margin-bottom:2px; color:var(--muted); cursor:pointer; font-size:14.5px; font-weight:500; border-left:2px solid transparent; transition:background .12s; }
.nav-item:hover{background:var(--panel-2); color:var(--text);}
.nav-item.active{background:var(--cyan-dim); color:var(--cyan); border-left:3px solid var(--cyan); font-weight:600;}
.nav-icon{width:16px; height:16px; flex-shrink:0; opacity:.85;}
.nav-num{font-family:'JetBrains Mono'; font-size:10px; color:var(--muted-2); width:16px;}
.sidebar-foot{padding:12px 18px; border-top:1px solid var(--line-soft); font-size:10.5px; color:var(--muted); font-family:'JetBrains Mono';}

main{flex:1; min-width:0; padding:26px 30px 60px 30px;}
.topbar{display:flex; align-items:center; justify-content:space-between; margin-bottom:22px; flex-wrap:wrap; gap:10px;}
.page-title{font-size:30px; margin:0; color:var(--text);}
.page-sub{color:var(--muted); font-size:13px; margin-top:2px;}
.today-chip{font-family:'JetBrains Mono'; font-size:12px; color:var(--muted); background:var(--panel); border:1px solid var(--line); padding:6px 12px; border-radius:20px;}

.dash-banner { background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%); border: 1px solid var(--line-soft); border-left: 5px solid var(--cyan); border-radius: var(--radius); padding: 18px 22px; margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; box-shadow: 0 2px 8px rgba(0,0,0,0.03); }

.grid{display:grid; gap:14px;}
.grid-4{grid-template-columns:repeat(4,1fr);} .grid-3{grid-template-columns:repeat(3,1fr);} .grid-2{grid-template-columns:repeat(2,1fr);}
@media(max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr;}}

.card{ background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius); padding:16px 18px; position:relative; box-shadow:0 1px 3px rgba(0,0,0,0.02); }
.metric-label{font-size:11px; text-transform:uppercase; letter-spacing:.1em; color:var(--muted); font-family:'JetBrains Mono'; font-weight:600;}
.metric-value{font-family:'Barlow Condensed'; font-size:32px; font-weight:700; margin-top:6px; line-height:1;}
.metric-sub{font-size:12px; color:var(--muted); margin-top:6px;}
.accent-cyan{color:var(--cyan);} .accent-magenta{color:var(--magenta);} .accent-yellow{color:var(--yellow);} .accent-green{color:var(--green);}

.section-title{font-size:17px; margin:26px 0 12px 0; display:flex; align-items:center; gap:8px;}
.section-title .tag{font-family:'JetBrains Mono'; font-size:10px; color:var(--muted); border:1px solid var(--line); padding:2px 7px; border-radius:20px; text-transform:uppercase; letter-spacing:.08em;}

.btn{ background:var(--panel); border:1px solid var(--line); color:var(--text); padding:9px 16px; border-radius:7px; font-size:13.5px; font-weight:600; cursor:pointer; display:inline-flex; align-items:center; gap:6px; transition:all .12s; }
.btn:hover{border-color:var(--cyan); color:var(--cyan); background:var(--panel-2);}
.btn-primary{background:var(--cyan); border-color:var(--cyan); color:#ffffff;}
.btn-primary:hover{filter:brightness(0.92); color:#ffffff;}
.btn-danger{color:var(--magenta); border-color:var(--line);}
.btn-danger:hover{border-color:var(--magenta); background:var(--magenta-dim);}
.btn-sm{padding:5px 10px; font-size:12px; border-radius:6px;}
.btn-ghost{background:transparent; border:1px solid transparent; color:var(--muted);}
.btn-ghost:hover{color:var(--text); background:var(--panel-2);}

input,select,textarea{ background:var(--panel); border:1px solid var(--line); color:var(--text); padding:9px 11px; border-radius:7px; font-size:13.5px; font-family:'Inter','Noto Sans Bengali',sans-serif; width:100%; }
input:focus,select:focus,textarea:focus{outline:none; border-color:var(--cyan); box-shadow:0 0 0 3px var(--cyan-dim);}
label{font-size:11.5px; color:var(--muted); display:block; margin-bottom:5px; text-transform:uppercase; letter-spacing:.06em; font-family:'JetBrains Mono'; font-weight:600;}
.field{margin-bottom:12px;}
.form-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:12px;}
.form-grid.c2{grid-template-columns:repeat(2,1fr);} .form-grid.c3{grid-template-columns:repeat(3,1fr);} .form-grid.c4{grid-template-columns:repeat(4,1fr);}
@media(max-width:800px){.form-grid,.form-grid.c2,.form-grid.c3,.form-grid.c4{grid-template-columns:1fr 1fr;}}
.form-panel{background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius); padding:18px; margin-bottom:18px;}

.table-wrap{background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius); overflow:hidden;}
table{width:100%; border-collapse:collapse; font-size:13.5px;}
thead th{ text-align:left; padding:10px 14px; background:var(--panel-2); color:var(--muted); font-size:10.5px; text-transform:uppercase; letter-spacing:.08em; font-family:'JetBrains Mono'; font-weight:700; border-bottom:1px solid var(--line); }
tbody td{padding:11px 14px; border-bottom:1px solid var(--line-soft); vertical-align:middle; overflow-wrap:break-word; word-break:break-word;}
tbody tr:last-child td{border-bottom:none;}
tbody tr:hover{background:var(--panel-2);}
.num{font-family:'JetBrains Mono'; font-variant-numeric:tabular-nums;}
.pill{display:inline-block; padding:3px 9px; border-radius:20px; font-size:11px; font-weight:600;}
.pill-due{background:var(--magenta-dim); color:var(--magenta);}
.pill-paid{background:var(--green-dim); color:var(--green);}
.pill-low{background:var(--yellow-dim); color:var(--yellow);}
.pill-ok{background:var(--cyan-dim); color:var(--cyan);}
.empty-state{padding:36px 20px; text-align:center; color:var(--muted); font-size:13.5px;}

.searchbar{display:flex; gap:10px; margin-bottom:14px; align-items:center; flex-wrap:wrap;}
.searchbar input{max-width:320px;}

.row-actions{display:flex; gap:6px;}
.item-row{display:grid; grid-template-columns:32px 2.2fr 1fr 70px 80px 90px 1fr 34px; gap:8px; align-items:center; margin-bottom:8px;}
.item-row .sl{color:var(--muted); font-family:'JetBrains Mono'; font-size:12px; text-align:center;}
.item-row .amt{font-family:'JetBrains Mono'; color:var(--cyan); text-align:right; padding-right:6px; font-weight:600;}
.item-head{display:grid; grid-template-columns:32px 2.2fr 1fr 70px 80px 90px 1fr 34px; gap:8px; margin-bottom:6px;}
.item-head span{font-size:10px; text-transform:uppercase; color:var(--muted); font-family:'JetBrains Mono'; letter-spacing:.05em; font-weight:600;}

.modal-bg{position:fixed; inset:0; background:rgba(15,23,42,0.4); backdrop-filter:blur(3px); display:flex; align-items:center; justify-content:center; z-index:100; padding:20px;}
.modal{background:var(--panel); border:1px solid var(--line); border-radius:12px; max-width:780px; width:100%; max-height:88vh; overflow-y:auto; padding:22px;}
.modal-close{position:absolute; top:14px; right:16px; cursor:pointer; color:var(--muted); font-size:20px;}

.tot-line{display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px dashed var(--line); font-size:14px;}
.tot-line:last-child{border-bottom:none;}
.tot-line.grand{font-size:19px; font-weight:700; font-family:'Barlow Condensed'; padding-top:12px;}

.toast{position:fixed; bottom:24px; right:24px; background:var(--cyan); color:#ffffff; padding:12px 20px; border-radius:8px; font-weight:600; font-size:13.5px; z-index:200; box-shadow:0 10px 15px -3px rgba(0,0,0,0.1);}

.print-only{display:none;}
@media print{
  body > *:not(.print-only){ display:none !important; }
  .print-only{
    display:block !important;
    position:fixed;
    left:0; top:0;
    width:100%;
    background:#ffffff;
    color:#000000;
    padding:8mm;
    z-index:9999;
  }
  @page{size: A4; margin: 8mm;}
  table{ page-break-inside: auto; } tr{ page-break-inside: avoid; page-break-after: auto; } thead{ display: table-header-group; }
}
.inv-doc{font-family:'Inter','Noto Sans Bengali',sans-serif; color:#000000; width:100%; box-sizing:border-box; overflow-wrap:break-word; word-break:break-word;}
.inv-doc *{box-sizing:border-box; max-width:100%;}
.inv-head{display:flex; justify-content:space-between; border-bottom:2px solid #006E74; padding-bottom:8px; margin-bottom:10px; flex-wrap:wrap; gap:8px;}
.inv-doc table{width:100%; border-collapse:collapse; font-size:11px; page-break-inside:auto; table-layout:fixed;}
.inv-doc tr{page-break-inside:avoid; page-break-after:auto;}
.inv-doc thead{display:table-header-group;}
.inv-doc th,.inv-doc td{border:1px solid #777777; padding:5px 6px; text-align:left; overflow-wrap:break-word; word-break:break-word; white-space:normal;}
.inv-doc th{background:#f1f5f9; text-transform:uppercase; font-size:9.5px; font-weight:700;}
.inv-doc .r{text-align:right;}
.inv-tot{margin-top:8px; width:55%; margin-left:auto; font-size:11.5px; page-break-inside:avoid;}
.inv-tot div{display:flex; justify-content:space-between; padding:2.5px 0;}
.inv-tot .g{font-weight:700; font-size:14.5px; border-top:1px solid #000000; margin-top:4px; padding-top:4px;}
.inv-slogan{margin-top:14px; text-align:center; font-size:10.5px; font-style:italic; color:#1e293b; border-top:1px dashed #cbd5e1; padding-top:6px; font-family:'Noto Sans Bengali',sans-serif; font-weight:500;}
.inv-foot{margin-top:6px; font-size:10px; color:#555555; text-align:center; font-weight:600;}

.helper{font-size:11.5px; color:var(--muted); margin-top:4px;}