/* ThanvikaTech Billing – shared styles (shop + admin). No inline styles are used anywhere (CSP). */
:root{
  --ink:#14181F; --muted:#4A535D; --line:#E2E6EA; --bg:#F4F6F8; --card:#FFFFFF;
  --brand:#0F766E; --brand-dark:#0B5A54; --brand-soft:#E6F4F1; --side:#12312E; --side-active:#1F4C47;
  --warn-bg:#FFF7ED; --warn:#7C2D12; --bad-bg:#FEE2E2; --bad:#991B1B; --ok-bg:#DCFCE7; --ok:#14532D;
  --radius:12px;
}
.admin-site{ --side:#1E1B4B; --side-active:#312E81; --brand:#4338CA; --brand-dark:#3730A3; --brand-soft:#EEF2FF; }
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Telugu",sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.45}
a{color:var(--brand)} a:hover{color:var(--brand-dark)}
h1{font-size:24px;margin:0 0 4px} h2{font-size:17px;margin:0 0 12px} h3{font-size:15px;margin:0 0 8px}
.muted{color:var(--muted)} .small{font-size:13px} .right{text-align:right} .center{text-align:center}
.nowrap{white-space:nowrap} .mono{font-family:ui-monospace,Consolas,monospace}
.hidden{display:none!important}

/* Layout */
.app{display:flex;min-height:100vh;flex-wrap:wrap}
.side{flex:0 0 230px;background:var(--side);color:#E6F2F0;padding:20px 14px;display:flex;flex-direction:column;gap:4px}
.side .brand{display:flex;gap:10px;align-items:center;padding:0 6px 18px}
.side .logo{width:38px;height:38px;border-radius:9px;background:#F59E0B;color:var(--side);display:flex;align-items:center;justify-content:center;font-weight:800;overflow:hidden}
.side .logo img{width:100%;height:100%;object-fit:cover}
.side .brand b{display:block;font-size:14px} .side .brand span{font-size:12px;color:#B9D4CF}
.side a.nav{display:block;padding:10px 12px;border-radius:8px;color:#DCEBE8;text-decoration:none;font-weight:600;font-size:14px}
.side a.nav:hover{background:rgba(255,255,255,.07);color:#fff}
.side a.nav.on{background:var(--side-active);color:#fff}
.side .foot{margin-top:auto;padding:12px 6px 0;font-size:12px;color:#A9C7C2}
.side form{margin:0}
.side .linkbtn{background:none;border:0;color:#DCEBE8;font:inherit;font-weight:600;font-size:14px;padding:10px 12px;cursor:pointer;width:100%;text-align:left;border-radius:8px}
.side .linkbtn:hover{background:rgba(255,255,255,.07)}
.main{flex:999 1 560px;min-width:0;padding:24px 28px;display:flex;flex-direction:column;gap:18px}
.topline{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}
.plain{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}

/* Cards / grids */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.card.tight{padding:0;overflow:hidden}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))} .g3{grid-template-columns:repeat(3,minmax(0,1fr))} .g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row > .grow{flex:1 1 200px}
.stat .label{font-size:13px;font-weight:600;color:var(--muted)}
.stat .value{font-size:26px;font-weight:800;letter-spacing:-.01em}
.stat .delta{font-size:13px;font-weight:700;color:var(--brand)}
.stat .delta.down{color:var(--bad)}

/* Tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 14px;text-align:left;border-top:1px solid #EEF1F3;vertical-align:top}
thead th{background:#F8FAFA;font-size:13px;color:var(--muted);border-top:0}
td.num,th.num{text-align:right;white-space:nowrap}
tr.cancelled td{color:#9AA3AD;text-decoration:line-through}
tr.cancelled td.keep{text-decoration:none}

/* Forms */
label{display:block;font-size:13px;font-weight:600;color:#3A434D;margin-bottom:5px}
input[type=text],input[type=tel],input[type=email],input[type=password],input[type=number],input[type=date],input[type=search],select,textarea{
  width:100%;height:44px;border:1px solid #C9D0D6;border-radius:9px;padding:0 12px;font:inherit;background:#fff;color:var(--ink)}
textarea{height:auto;min-height:80px;padding:10px 12px}
input:focus,select:focus,textarea:focus,button:focus-visible,a:focus-visible{outline:2px solid var(--brand);outline-offset:1px}
.field{margin-bottom:14px}
.check{display:flex;gap:8px;align-items:center;font-weight:500}
.check input{width:18px;height:18px;accent-color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 18px;border-radius:10px;border:1px solid #C9D0D6;background:#fff;color:var(--ink);font:inherit;font-weight:700;text-decoration:none;cursor:pointer}
.btn:hover{border-color:#9AA6B2;color:var(--ink)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-dark)}
.btn.danger{border-color:#FCA5A5;color:var(--bad)}
.btn.small{height:36px;padding:0 12px;font-size:13px}
.btn.big{height:54px;font-size:17px;width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.inline{display:inline}

/* Messages */
.flash{padding:12px 16px;border-radius:10px;font-weight:600;border:1px solid}
.flash.success{background:var(--ok-bg);color:var(--ok);border-color:#86EFAC}
.flash.error{background:var(--bad-bg);color:var(--bad);border-color:#FCA5A5}
.flash.info{background:#EFF6FF;color:#1E3A8A;border-color:#BFDBFE}
.banner{padding:12px 16px;border-radius:10px;background:var(--warn-bg);color:var(--warn);border:1px solid #FDBA74;font-weight:600}
.banner.bad{background:var(--bad-bg);color:var(--bad);border-color:#FCA5A5}
.pill{display:inline-block;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark)}
.pill.bad{background:var(--bad-bg);color:var(--bad)} .pill.warn{background:#FEF3C7;color:#78350F} .pill.ok{background:var(--ok-bg);color:var(--ok)} .pill.grey{background:#EEF1F3;color:var(--muted)}
.secret{font-family:ui-monospace,Consolas,monospace;font-size:20px;font-weight:800;background:#FFFBEB;border:2px dashed #F59E0B;padding:10px 14px;border-radius:10px;display:inline-block;letter-spacing:.06em}

/* Login */
.login-card{width:100%;max-width:420px}
.login-card .card{padding:32px}
.login-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-weight:800;font-size:19px}
.login-brand .mark{width:40px;height:40px;border-radius:10px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center}

/* POS billing */
.pos{display:flex;gap:18px;flex-wrap:wrap;align-items:flex-start}
.pos .left{flex:999 1 480px;min-width:0;display:flex;flex-direction:column;gap:14px}
.pos .summary{flex:1 1 300px;display:flex;flex-direction:column;gap:12px}
.search-box{position:relative}
.search-box input{height:52px;font-size:17px;border:2px solid var(--brand)}
.results{position:absolute;left:0;right:0;top:56px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.12);z-index:5;max-height:340px;overflow:auto}
.results button{display:flex;justify-content:space-between;width:100%;border:0;background:#fff;padding:12px 14px;font:inherit;text-align:left;cursor:pointer;border-top:1px solid #EEF1F3;gap:10px}
.results button:hover,.results button.active{background:var(--brand-soft)}
.qty{width:90px!important;height:38px!important;text-align:right}
.total-line{display:flex;justify-content:space-between;font-size:15px;padding:4px 0}
.grand{display:flex;justify-content:space-between;align-items:baseline;border-top:1px dashed #C9D0D6;padding-top:12px;margin-top:6px}
.grand .amt{font-size:34px;font-weight:800;color:var(--brand)}
.modes{border:0;padding:0;margin:0;min-width:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}
.modes label{margin:0}
.modes input{position:absolute;opacity:0}
.modes span{display:flex;height:44px;align-items:center;justify-content:center;border:1px solid #C9D0D6;border-radius:9px;font-weight:700;cursor:pointer;background:#fff}
.modes input:checked + span{border:2px solid var(--brand);background:var(--brand-soft);color:var(--brand-dark)}
.modes input:focus-visible + span{outline:2px solid var(--brand)}
.empty{padding:28px;text-align:center;color:var(--muted)}

/* Invoice + print */
.inv-head{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.qr-box{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.qr-box img{width:170px;height:170px;object-fit:contain;border:1px solid var(--line);border-radius:10px;background:#fff}
.thumb{width:44px;height:44px;border-radius:8px;object-fit:cover;border:1px solid var(--line)}
.logo-preview{max-width:140px;max-height:140px;border:1px solid var(--line);border-radius:10px}
.print-page{background:#fff;color:#000;font-family:"Courier New",ui-monospace,monospace;margin:0 auto;padding:10px}
.print-page.s58{width:58mm;font-size:11px} .print-page.s80{width:80mm;font-size:12px}
.print-page.sa4{width:190mm;font-family:system-ui,sans-serif;font-size:13px;padding:14mm 10mm}
.print-page table th,.print-page table td{padding:3px 2px;border-top:0;background:none;color:#000;font-size:inherit}
.print-page .hr{border-top:1px dashed #000;margin:6px 0}
.print-page.sa4 .hr{border-top:1px solid #000}
.print-page .pc{text-align:center} .print-page .pr{text-align:right} .print-page .pb{font-weight:700}
.print-page img.plogo{max-width:60%;max-height:70px;display:block;margin:0 auto 4px}
.print-tools{display:flex;gap:8px;justify-content:center;padding:12px;background:#F4F6F8;flex-wrap:wrap}
.cancel-stamp{border:2px solid #B91C1C;color:#B91C1C;font-weight:800;text-align:center;padding:4px;margin:6px 0}
@media print{
  .print-tools,.no-print{display:none!important}
  body{background:#fff}
  @page{margin:0}
  .print-page{padding:2mm}
  .print-page.sa4{padding:10mm}
}

/* History */
.diff{font-family:ui-monospace,Consolas,monospace;font-size:12px;white-space:pre-wrap;word-break:break-word;max-width:420px;color:#3A434D}
.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;padding:12px 14px;flex-wrap:wrap}
.tabs{display:flex;gap:6px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:0}
.tabs a{padding:10px 14px;text-decoration:none;font-weight:700;color:var(--muted);border-bottom:3px solid transparent}
.tabs a.on{color:var(--brand-dark);border-bottom-color:var(--brand)}
meter{width:100%;height:12px}

@media (max-width:760px){
  .g2,.g3,.g4{grid-template-columns:minmax(0,1fr)}
  .side{flex:1 1 100%}
  .main{padding:16px}
  .modes{grid-template-columns:repeat(2,minmax(0,1fr))}
}
a.card{display:block;text-decoration:none;color:inherit}
a.card:hover{border-color:var(--brand)}
details summary{cursor:pointer}
details[open] summary{margin-bottom:12px}
.card.tight > .card{border:0;border-radius:0;border-bottom:1px solid var(--line);padding:16px 20px}
.card.tight > .card h2{margin:0}

/* Billing panel (top bar, full width) */
.topbar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:var(--side);color:#E6F2F0;padding:10px 20px}
.topbar .brand{display:flex;gap:10px;align-items:center}
.topbar .logo{width:38px;height:38px;border-radius:9px;background:#F59E0B;color:var(--side);display:flex;align-items:center;justify-content:center;font-weight:800;overflow:hidden}
.topbar .logo img{width:100%;height:100%;object-fit:cover}
.topbar .brand b{display:block;font-size:14px}.topbar .brand span{font-size:12px;color:#B9D4CF}
.topnav{display:flex;gap:4px;flex-wrap:wrap;flex:1 1 auto}
.topnav a{color:#DCEBE8;text-decoration:none;font-weight:700;font-size:15px;padding:10px 14px;border-radius:8px}
.topnav a:hover{background:rgba(255,255,255,.08);color:#fff}
.topnav a.on{background:var(--side-active);color:#fff}
.topright{display:flex;gap:8px;align-items:center}
.topright form{margin:0}
.btn.switch{background:#F59E0B;border-color:#F59E0B;color:#12312E}
.side a.nav.switch{background:#F59E0B;color:#12312E;margin-bottom:10px;text-align:center}
.side a.nav.switch:hover{background:#FBBF24;color:#12312E}
.main.wide{max-width:1500px;margin:0 auto;width:100%}
.billing-panel{min-height:100vh}
.card.stat.picked{border:2px solid var(--brand)}
/* Panel chooser */
.choose{display:grid;gap:12px;margin:16px 0}
.choice{display:block;border:2px solid var(--line);border-radius:12px;padding:18px;text-decoration:none;color:var(--ink);background:#fff}
.choice b{display:block;font-size:18px;margin-bottom:4px}
.choice span{color:var(--muted);font-size:14px}
.choice:hover,.choice:focus-visible{border-color:var(--brand);background:var(--brand-soft);color:var(--ink)}
.choice.billing b{color:var(--brand-dark)}
.inline-role{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.inline-role select{height:36px;width:auto}
.inline-role .pw{width:190px;height:36px}
.inline-role .qty{height:36px!important;width:80px!important}

/* Collect payment popup */
dialog.pay{border:0;border-radius:16px;padding:24px 26px;width:min(680px,94vw);box-shadow:0 30px 80px rgba(0,0,0,.35);color:var(--ink)}
dialog.pay::backdrop{background:rgba(15,23,42,.55)}
.pay-head{display:flex;justify-content:space-between;align-items:center}
.pay-head h2{margin:0;font-size:19px}
.pay-total{text-align:center;font-size:48px;font-weight:800;color:var(--brand);letter-spacing:-.02em;margin-top:6px}
.pay-sub{text-align:center;margin-bottom:16px}
.pay-modes{border:0;padding:0;margin:0 0 16px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.pay-modes label{margin:0}
.pay-modes input{position:absolute;opacity:0}
.pay-modes span{display:flex;height:52px;align-items:center;justify-content:center;border:1px solid #C9D0D6;border-radius:10px;font-weight:700;font-size:16px;cursor:pointer;background:#fff}
.pay-modes input:checked + span{background:#12312E;border-color:#12312E;color:#fff}
.pay-modes input:focus-visible + span{outline:3px solid var(--brand);outline-offset:2px}
.pay-input{height:58px!important;font-size:24px!important}
.quick{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.change{font-size:22px;margin:8px 0 4px}
.pay-warn{color:var(--bad);font-weight:700}
.pay-panel{min-height:150px}
.pay-panel .qr-box img{width:150px;height:150px}
.pay-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:18px;flex-wrap:wrap}
.btn.pay-save{background:#16A34A;border-color:#16A34A;color:#fff;height:56px;font-size:18px;padding:0 26px}
.btn.pay-save:hover{background:#15803D;color:#fff}
.btn.pay-save[disabled]{background:#9CA3AF;border-color:#9CA3AF}
.total-line.saves{color:#15803D;font-weight:700}
kbd{font:inherit;font-size:11px;background:rgba(255,255,255,.2);border-radius:4px;padding:1px 5px;margin-left:6px}
@media (max-width:600px){.pay-modes{grid-template-columns:repeat(2,minmax(0,1fr))}.pay-total{font-size:38px}}

.feat{border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.feat.off{background:#F8FAFA;color:var(--muted)}
.offer-on{background:#DCFCE7;color:#14532D;border-radius:8px;padding:8px 10px;font-weight:700;font-size:13px}
.featrow td{vertical-align:middle}
.send-note{grid-column:1/-1}

/* Scrolling lists: header stays visible while scrolling */
.table-wrap.scroll{max-height:62vh;overflow:auto}
.table-wrap.scroll thead th{position:sticky;top:0;z-index:2;box-shadow:0 1px 0 var(--line)}
.pager{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:12px 16px;flex-wrap:wrap;border-top:1px solid var(--line);background:#FCFDFD}
.pager .pages{display:flex;gap:4px;flex-wrap:wrap}
.pager .pages .btn{min-width:36px;padding:0 10px}
.per-form{display:flex;gap:6px;align-items:center;margin:0}
.per-form label{margin:0;font-weight:600}
.per-form select{height:36px;width:auto}
.results{max-height:420px}