:root{
  --bg:#f4e7fb; --panel:#ffffff; --ink:#30283e; --muted:#70657c; --line:#e8deee;
  --brand:#69418c; --brand-ink:#ffffff; --brand-soft:#eee2f8;
  --accent:#c2620a; --danger:#b42318; --danger-soft:#fdecea; --ok:#127a3e; --ok-soft:#e6f4ea;
  --warn:#8a5a00; --warn-soft:#fff4dc;
  --radius:20px; --side:248px;
  font-family: system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Bengali","Noto Sans Devanagari",sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-size:15px;line-height:1.45}
a{color:var(--brand)}
h1{font-size:1.45rem;margin:0 0 14px} h2{font-size:1.15rem;margin:0 0 10px} h3{font-size:1rem;margin:14px 0 8px}
code{background:#eef0ec;padding:1px 5px;border-radius:4px}
.muted{color:var(--muted)} .small{font-size:.85rem} .right{text-align:right} .center{text-align:center}
.nowrap{white-space:nowrap} .mono{font-family:ui-monospace,Consolas,monospace}
.red{color:var(--danger)} .green{color:var(--ok)} .bold{font-weight:700}

/* Layout */
.topbar{position:fixed;top:0;left:0;right:0;height:54px;background:var(--brand);color:#fff;display:flex;align-items:center;gap:12px;padding:0 14px;z-index:30}
.topbar .brand{color:#fff;text-decoration:none;font-weight:700;font-size:1.1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.top-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.top-right .who{opacity:.85;font-size:.9rem}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer;padding:4px 6px}
.sidebar{position:fixed;top:54px;bottom:0;left:0;width:var(--side);background:var(--panel);border-right:1px solid var(--line);overflow-y:auto;padding:10px 8px;z-index:25}
.sidebar a{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;color:var(--ink);text-decoration:none;margin-bottom:2px}
.sidebar a:hover{background:var(--bg)}
.sidebar a.on{background:var(--brand-soft);color:var(--brand);font-weight:600}
.sidebar .ic{width:22px;text-align:center}
.content{margin-left:var(--side);padding:72px 22px 40px;max-width:1400px}
.nav-shade{display:none}
@media (max-width:900px){
  .menu-btn{display:block}
  .sidebar{transform:translateX(-100%);transition:transform .2s}
  body.nav-open .sidebar{transform:none}
  body.nav-open .nav-shade{display:block;position:fixed;inset:54px 0 0 0;background:rgba(0,0,0,.3);z-index:20}
  .content{margin-left:0;padding:68px 12px 40px}
  .top-right .who{display:none}
}

/* Panels & grid */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.row{display:flex;gap:16px;flex-wrap:wrap}
.row>.grow{flex:1 1 320px;min-width:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
.stat .k{color:var(--muted);font-size:.82rem}
.stat .v{font-size:1.35rem;font-weight:700;margin-top:4px}
.page-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.page-head h1{margin:0;margin-right:auto}

/* Forms */
label{display:block;font-size:.85rem;color:var(--muted);font-weight:500}
input,select,textarea{display:block;width:100%;margin-top:4px;padding:9px 10px;border:1px solid #cdd2cc;border-radius:8px;font:inherit;color:var(--ink);background:#fff}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:var(--brand)}
input[type=checkbox],input[type=radio]{display:inline-block;width:auto;margin:0 6px 0 0}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px 14px}
.form-grid .span2{grid-column:1/-1}
.inline{display:flex;gap:8px;align-items:end;flex-wrap:wrap}
.inline>*{flex:0 1 auto}
.inline label{min-width:140px}
.check{display:flex;align-items:center;color:var(--ink);font-size:.95rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:8px;border:1px solid #cdd2cc;background:#fff;color:var(--ink);font:inherit;font-weight:600;text-decoration:none;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:var(--brand)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.danger{color:var(--danger);border-color:#e9b8b3}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn.small{padding:5px 10px;font-size:.85rem}
.btn.big{padding:13px 22px;font-size:1.05rem}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* Tables */
.table-wrap{overflow-x:auto}
table.t{width:100%;border-collapse:collapse;background:var(--panel)}
table.t th,table.t td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
table.t th{font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted);background:#fafbf9;position:sticky;top:0}
table.t tr:hover td{background:#fafcfb}
table.t td.num,table.t th.num{text-align:right;white-space:nowrap}
.badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:.78rem;font-weight:600;background:#eef0ec}
.badge.paid{background:var(--ok-soft);color:var(--ok)}
.badge.due,.badge.partial{background:var(--warn-soft);color:var(--warn)}
.badge.cancelled{background:var(--danger-soft);color:var(--danger)}
.badge.low{background:var(--danger-soft);color:var(--danger)}
.pager{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}

/* Alerts */
.alert{padding:10px 14px;border-radius:8px;margin-bottom:12px;border:1px solid}
.alert.ok{background:var(--ok-soft);border-color:#b7dfc4;color:#0d5c2e}
.alert.err{background:var(--danger-soft);border-color:#f2c1bb;color:#8c1c13}
.alert.warn{background:var(--warn-soft);border-color:#f0d9a6;color:#6d4700}

/* Auth */
.auth-page{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:16px}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;width:100%;max-width:380px;display:flex;flex-direction:column;gap:12px}
.auth-card.wide{max-width:720px;display:block}
.auth-card h1{margin:0;color:var(--brand)}

/* Billing POS */
.pos{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:16px;align-items:start}
@media (max-width:1100px){.pos{grid-template-columns:minmax(0,1fr)}}
.scan-box{position:relative}
.scan-box input{font-size:1.15rem;padding:12px 14px}
.suggest{position:absolute;left:0;right:0;top:100%;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.12);z-index:10;max-height:320px;overflow:auto}
.suggest div{padding:9px 12px;cursor:pointer;display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line)}
.suggest div:hover,.suggest div.sel{background:var(--brand-soft)}
.cart input{display:inline-block;padding:5px 6px;width:70px;margin:0;vertical-align:middle}
.cart table.t th,.cart table.t td{padding:7px 6px}
.cart .btn.small{padding:4px 8px}
.cart td.nowrap .btn{vertical-align:middle}
.cart input.qty{width:46px;text-align:center}
.summary .line,.line.summary{display:flex;justify-content:space-between;padding:4px 0}
.summary .total{font-size:1.5rem;font-weight:800;border-top:2px solid var(--ink);margin-top:6px;padding-top:8px}
.pay-row{display:flex;gap:6px;margin-bottom:6px;align-items:center}
.pay-row select{width:110px;margin:0} .pay-row input{margin:0}
.qr-box{text-align:center;padding:10px;border:1px dashed var(--line);border-radius:8px;margin-top:10px}
.qr-box img,.qr-box canvas{margin:0 auto}
.kbd{font-family:ui-monospace,monospace;font-size:.75rem;border:1px solid var(--line);border-bottom-width:2px;border-radius:4px;padding:0 4px;background:#fff;color:var(--ink)}
.btn.primary .kbd{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.4)}

.empty{padding:30px;text-align:center;color:var(--muted)}
svg.bc{display:block;width:100%}

@media print{
  .no-print,.topbar,.sidebar,.nav-shade{display:none!important}
  .content{margin:0;padding:0;max-width:none}
  body{background:#fff}
  .card{border:0;padding:0}
}

/* Pastel studio theme: screen-only styling preserves receipt layouts. */
@media screen {
  body{background:linear-gradient(135deg,#f4e7fb 0%,#faf6fb 48%,#f2dddc 100%);background-attachment:fixed}
  h1,h2,h3{letter-spacing:-.025em}
  h1{font-size:1.65rem;font-weight:750}
  .topbar{height:72px;background:rgba(255,255,255,.94);color:var(--ink);border-bottom:1px solid var(--line);padding:0 26px;gap:14px}
  .topbar .brand{color:var(--ink);font-size:1.15rem;display:flex;align-items:center;gap:12px}
  .brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:13px;background:linear-gradient(135deg,#c8a8e9,#c3c7f4);color:#443057;font-size:21px;flex-shrink:0}
  .top-right{gap:16px}
  .top-right .who{color:var(--muted)}
  .topbar .btn.ghost{color:var(--brand);border-color:var(--line);background:#faf7fc}
  .menu-btn{color:var(--brand)}
  .sidebar{top:72px;padding:26px 14px;background:rgba(255,255,255,.8)}
  .nav-caption{padding:0 14px 16px;color:var(--muted);font-size:.7rem;letter-spacing:.16em;font-weight:700}
  .sidebar a{padding:12px;margin-bottom:5px;border-radius:13px;font-size:.88rem;transition:background .15s}
  .sidebar a:hover{background:#f4e7fb}
  .sidebar a.on{background:linear-gradient(110deg,#e8d6f5,#e4e6fa);color:#513470;box-shadow:inset 3px 0 #8b61ae}
  .sidebar .ic{font-size:17px}
  .content{padding:104px 32px 48px;max-width:1800px}
  .page-head{margin-bottom:24px;gap:16px}
  .page-head h1 .muted{display:block;font-size:.85rem;font-weight:400;letter-spacing:0;margin-top:6px}
  .card{padding:22px;box-shadow:0 6px 24px rgba(72,43,92,.035);margin-bottom:20px}
  .card h2{margin-bottom:18px}
  .stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:26px}
  .stat{position:relative;min-width:0;padding:22px;border:1px solid rgba(255,255,255,.7);box-shadow:0 5px 18px rgba(72,43,92,.04);min-height:135px}
  .stat:nth-child(6n+1){background:#c3c7f4}
  .stat:nth-child(6n+2){background:#f2dddc}
  .stat:nth-child(6n+3){background:#e3aadd}
  .stat:nth-child(6n+4){background:#c8a8e9}
  .stat:nth-child(6n+5){background:#f6bcba}
  .stat:nth-child(6n+6){background:#f4e7fb}
  .stat .k,.stat .muted{color:#574660}
  .stat .k{font-weight:600;font-size:.8rem}
  .stat .v{font-size:1.7rem;letter-spacing:-.035em;margin:10px 0 4px;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
  .stat a{color:#513470;font-weight:600}
  input,select,textarea{border-color:#ddd1e5;border-radius:11px;padding:11px 12px;background:#fdfbfe;transition:border-color .15s,box-shadow .15s}
  input:focus,select:focus,textarea:focus{outline:2px solid #8b61ae;outline-offset:1px;box-shadow:0 0 0 4px #f4e7fb}
  input[type=checkbox],input[type=radio]{accent-color:var(--brand)}
  .btn{border-color:#ddd1e5;border-radius:11px;padding:10px 17px;transition:background .15s,box-shadow .15s}
  .btn.primary{background:#69418c;box-shadow:0 4px 10px #69418c20}
  .btn.primary:hover{background:#573273;filter:none}
  .btn:focus-visible,a:focus-visible{outline:3px solid #8b61ae;outline-offset:3px}
  table.t th{background:#f7f2fa;color:#71617c;font-size:.7rem;letter-spacing:.07em;padding:12px}
  table.t td{padding:13px 12px;font-size:.88rem}
  table.t tr:hover td{background:#fcf8fe}
  .table-wrap{border-radius:12px}
  .badge{padding:4px 10px;background:#eee2f8}
  .empty{padding:45px 20px;background:#fcf9fe;border:1px dashed #e8deee;border-radius:14px}
  .summary .total{border-color:#c8a8e9;color:#513470;padding-top:16px;margin-top:12px}
  .qr-box{background:#faf6fd;border-radius:14px}
  .auth-page{background:radial-gradient(ellipse at 15% 15%,#c3c7f4 0%,transparent 48%),radial-gradient(ellipse at 90% 35%,#e3aadd 0%,transparent 48%),linear-gradient(145deg,#f4e7fb,#f2dddc 65%,#f6bcba);padding:32px 20px;min-height:100svh}
  .auth-card{max-width:440px;padding:40px;border-radius:28px;background:rgba(255,255,255,.92);border:1px solid #ffffffb3;box-shadow:0 24px 80px #63477c25;gap:20px}
  .auth-card h1{color:var(--ink);font-size:1.85rem;line-height:1.2}
  .auth-card p{margin:0}
  .auth-mark{width:56px;height:56px;border-radius:18px;background:linear-gradient(135deg,#c8a8e9,#c3c7f4);display:flex;align-items:center;justify-content:center;color:#513470;font-size:28px}
  .eyebrow{font-size:.7rem;font-weight:750;letter-spacing:.18em;color:var(--brand);margin-bottom:9px}
  .auth-card .btn.block{padding:13px;margin-top:4px}
  .auth-note{text-align:center;font-size:.76rem;color:var(--muted);padding-top:4px}
  @media(max-width:1200px){.content{padding-left:22px;padding-right:22px}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
  @media(max-width:900px){.content{padding:96px 16px 32px}.topbar{padding:0 16px}.sidebar{background:#fffaff}body.nav-open .nav-shade{top:72px}.top-right{gap:8px}.topbar .brand{font-size:.95rem}}
  @media(max-width:480px){.brand-mark{display:none}.topbar{gap:7px}.topbar .brand{flex:1;min-width:0}.top-right .btn{padding:7px 9px}.stats{gap:10px}.stat{padding:16px;min-height:125px}.stat .v{font-size:1.4rem}.card{padding:16px}.auth-card{padding:28px}.page-head h1{font-size:1.4rem}}
}