/* Airam Grocery Store POS - Main stylesheet */
:root{
  --green:#1e874b;--green-d:#146c3a;--green-l:#e8f6ee;
  --blue:#2563eb;--red:#c0392b;--amber:#d98a00;--ink:#1f2a37;--muted:#6b7684;
  --bg:#f1f4f7;--card:#fff;--line:#e3e8ee;--radius:12px;--shadow:0 3px 14px rgba(20,40,60,.07);
  --primary:var(--green);--primary-d:var(--green-d);--primary-l:var(--green-l);
}
body.theme-blue{--primary:#2563eb;--primary-d:#1d4ed8;--primary-l:#e7efff;}
body.theme-dark{--primary:#111826;--primary-d:#000;--primary-l:#e6e9ef;}
body.theme-purple{--primary:#7c3aed;--primary-d:#6025c9;--primary-l:#f0e9ff;}
body.theme-teal{--primary:#0d9488;--primary-d:#0b7d73;--primary-l:#e2f7f4;}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.5}
a{color:var(--primary);text-decoration:none}
h1,h2,h3,h4{margin:0 0 .4em}

/* Layout */
.app-shell{display:flex;min-height:100vh}
.sidebar{width:236px;background:linear-gradient(180deg,var(--primary),var(--primary-d));color:#eaf3ee;position:fixed;top:0;bottom:0;left:0;display:flex;flex-direction:column;z-index:60;transition:transform .25s}
.brand{display:flex;align-items:center;gap:10px;padding:16px 16px;border-bottom:1px solid rgba(255,255,255,.12)}
.brand-badge{width:38px;height:38px;border-radius:10px;background:#fff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px}
.brand-logo{width:38px;height:38px;border-radius:9px;object-fit:cover;background:#fff}
.brand-name{font-weight:700;font-size:15.5px;color:#fff}
.nav{flex:1;overflow-y:auto;padding:8px 0}
.nav-link{display:flex;align-items:center;gap:11px;padding:11px 18px;color:#dbeee3;font-weight:500;border-left:3px solid transparent}
.nav-link:hover{background:rgba(255,255,255,.09);color:#fff}
.nav-link.active{background:rgba(255,255,255,.16);border-left-color:#fff;color:#fff}
.nav-ico{width:22px;text-align:center;font-size:15px}
.sidebar-foot{padding:12px 16px;font-size:11px;color:rgba(255,255,255,.6);border-top:1px solid rgba(255,255,255,.12)}
.main{flex:1;margin-left:236px;display:flex;flex-direction:column;min-height:100vh;min-width:0}
.topbar{display:flex;align-items:center;gap:14px;background:var(--card);padding:11px 20px;box-shadow:var(--shadow);position:sticky;top:0;z-index:40}
.hamburger{display:none;background:none;border:0;font-size:22px;cursor:pointer;color:var(--ink)}
.page-title{font-size:19px;margin:0;flex:1}
.topbar-right{display:flex;align-items:center;gap:12px}
.tb-btn{background:var(--primary);color:#fff;padding:8px 14px;border-radius:9px;font-weight:600;font-size:13px}
.user-menu{position:relative}
.user-btn{display:flex;align-items:center;gap:9px;background:none;border:0;cursor:pointer;color:var(--ink)}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.uname{display:flex;flex-direction:column;text-align:left;font-weight:600;font-size:13.5px}
.uname small{color:var(--muted);font-weight:400;font-size:11.5px}
.user-dd{position:absolute;right:0;top:48px;background:#fff;box-shadow:var(--shadow);border-radius:10px;min-width:160px;display:none;overflow:hidden;border:1px solid var(--line)}
.user-menu.open .user-dd{display:block}
.user-dd a{display:block;padding:11px 15px;color:var(--ink)}
.user-dd a:hover{background:var(--primary-l)}
.content{padding:20px;flex:1}
.app-footer{background:#111826;padding:12px 16px}

/* Developer footer (protected) */
.dev-footer{color:#c7d2e0;text-align:center;font-size:12.5px;line-height:1.6}
.dev-footer .dev-footer-brand{color:#7fd6a0;font-weight:700}
.dev-footer a{color:#8fdcae}
.dev-footer strong{color:#fff}

/* Cards & grid */
.grid{display:grid;gap:16px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:15px}
.stat{background:var(--card);border-radius:var(--radius);padding:16px 17px;box-shadow:var(--shadow);border-left:4px solid var(--primary)}
.stat .label{color:var(--muted);font-size:12.5px;font-weight:600;text-transform:uppercase;letter-spacing:.03em}
.stat .value{font-size:23px;font-weight:800;margin-top:4px}
.stat.green{border-left-color:var(--green)} .stat.blue{border-left-color:var(--blue)}
.stat.red{border-left-color:var(--red)} .stat.amber{border-left-color:var(--amber)}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:18px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;flex-wrap:wrap}
.card-head h3{margin:0;font-size:16px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.three-col{display:grid;grid-template-columns:2fr 1fr 1fr;gap:18px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--primary);color:#fff;border:0;padding:9px 16px;border-radius:9px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;transition:.15s}
.btn:hover{background:var(--primary-d)}
.btn.sm{padding:6px 11px;font-size:12.5px}
.btn.secondary{background:#eef2f6;color:var(--ink)}
.btn.secondary:hover{background:#e2e8ef}
.btn.danger{background:var(--red)} .btn.danger:hover{background:#a5301f}
.btn.warn{background:var(--amber)} .btn.info{background:var(--blue)}
.btn.block{width:100%;justify-content:center}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* Forms */
.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
label{display:block;font-weight:600;margin-bottom:5px;font-size:13px}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid #cdd5dd;border-radius:9px;font-size:14px;background:#fff;color:var(--ink);font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-l)}
.field{margin-bottom:12px}
.checkbox{display:flex;align-items:center;gap:8px}
.checkbox input{width:auto}
.help{color:var(--muted);font-size:12px;margin-top:3px}

/* Tables */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius)}
table.tbl{width:100%;border-collapse:collapse;background:var(--card);min-width:520px}
table.tbl th,table.tbl td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
table.tbl th{background:#f7f9fb;font-size:12.5px;text-transform:uppercase;letter-spacing:.02em;color:var(--muted)}
table.tbl tbody tr:hover{background:var(--primary-l)}
table.tbl td.num,table.tbl th.num{text-align:right}
.tag{display:inline-block;padding:2px 9px;border-radius:20px;font-size:11.5px;font-weight:700}
.tag.ok{background:#e3f6ea;color:#1e6b3f}.tag.off{background:#fbe6e4;color:#a5301f}
.tag.warn{background:#fff2d9;color:#8a5a00}.tag.info{background:#e5efff;color:#1a49b8}

/* Alerts */
.alert{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 15px;border-radius:10px;margin-bottom:12px;font-weight:500}
.alert-success{background:#e6f6ec;color:#1e6b3f;border:1px solid #bfe6ce}
.alert-danger{background:#fdecea;color:#a5301f;border:1px solid #f3c6c0}
.alert-warning{background:#fff5e0;color:#8a5a00;border:1px solid #f0dca8}
.alert-info{background:#e9f1ff;color:#1a49b8;border:1px solid #c8daf9}
.alert-close{background:none;border:0;font-size:18px;cursor:pointer;color:inherit;opacity:.6}

/* Toolbar / filters */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:end;margin-bottom:14px}
.toolbar .field{margin:0}
.search-box{flex:1;min-width:180px}

/* Pagination */
.pagination{display:flex;gap:5px;margin-top:14px;flex-wrap:wrap}
.page-link{padding:7px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}
.page-link.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.page-link.disabled{opacity:.5;pointer-events:none}
.page-dots{padding:7px 4px;color:var(--muted)}

/* Login */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--primary-d));padding:20px}
.login-card{background:#fff;border-radius:16px;box-shadow:0 12px 40px rgba(0,0,0,.2);width:100%;max-width:400px;padding:30px 28px}
.login-logo{width:64px;height:64px;border-radius:16px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800;margin:0 auto 12px}
.login-card h2{text-align:center;color:var(--primary);margin-bottom:4px}
.login-card .sub{text-align:center;color:var(--muted);margin-bottom:18px}
.login-foot{margin-top:18px;background:#111826;border-radius:10px;padding:10px}

/* Modal */
.modal-back{position:fixed;inset:0;background:rgba(15,25,40,.55);display:none;align-items:center;justify-content:center;z-index:200;padding:16px}
.modal-back.open{display:flex}
.modal{background:#fff;border-radius:14px;max-width:560px;width:100%;max-height:90vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;border-bottom:1px solid var(--line)}
.modal-body{padding:18px}
.modal-foot{padding:14px 18px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px}
.modal-close{background:none;border:0;font-size:22px;cursor:pointer;color:var(--muted)}

/* POS */
.pos-shell{display:grid;grid-template-columns:1fr 400px;gap:0;height:100vh}
.pos-left{display:flex;flex-direction:column;background:var(--bg);height:100vh;overflow:hidden}
.pos-right{background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column;height:100vh}
.pos-top{background:#fff;padding:12px 16px;box-shadow:var(--shadow);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pos-top .logo-mini{font-weight:800;color:var(--primary);font-size:18px}
.pos-search{flex:1;min-width:180px}
.pos-products{flex:1;overflow-y:auto;padding:14px;display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;align-content:start}
.p-card{background:#fff;border-radius:12px;box-shadow:var(--shadow);padding:12px;cursor:pointer;border:2px solid transparent;transition:.12s}
.p-card:hover{border-color:var(--primary);transform:translateY(-2px)}
.p-card .p-name{font-weight:700;font-size:13.5px;margin-bottom:4px}
.p-card .p-price{color:var(--primary);font-weight:800}
.p-card .p-stock{font-size:11.5px;color:var(--muted)}
.pos-cart-head{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;gap:8px;align-items:center}
.pos-cart{flex:1;overflow-y:auto;padding:8px 12px}
.cart-row{display:grid;grid-template-columns:1fr auto;gap:6px;padding:9px 0;border-bottom:1px dashed var(--line)}
.cart-row .cr-name{font-weight:700;font-size:13.5px}
.cart-row .cr-meta{color:var(--muted);font-size:12px}
.qty-ctrl{display:flex;align-items:center;gap:4px}
.qty-ctrl button{width:26px;height:26px;border-radius:6px;border:1px solid var(--line);background:#f7f9fb;cursor:pointer;font-weight:700}
.qty-ctrl input{width:52px;text-align:center;padding:4px}
.pos-summary{border-top:1px solid var(--line);padding:14px 16px;background:#fafcfe}
.sum-row{display:flex;justify-content:space-between;padding:3px 0}
.sum-row.total{font-size:20px;font-weight:800;color:var(--primary);border-top:1px dashed var(--line);margin-top:6px;padding-top:8px}
.pay-methods{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:8px 0}
.pay-methods label{display:flex;align-items:center;justify-content:center;padding:8px;border:1px solid var(--line);border-radius:8px;cursor:pointer;font-size:12.5px;margin:0}
.pay-methods input{display:none}
.pay-methods input:checked+span{color:var(--primary);font-weight:700}
.pay-methods label:has(input:checked){border-color:var(--primary);background:var(--primary-l)}
.pos-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
.pos-foot{background:#111826;padding:6px;font-size:11px}
.pos-foot .dev-footer{font-size:11px}

/* Receipt / print */
.receipt{width:80mm;max-width:80mm;margin:0 auto;font-family:'Courier New',monospace;font-size:12px;color:#000;padding:6px}
.receipt h2,.receipt .center{text-align:center}
.receipt table{width:100%;border-collapse:collapse}
.receipt td,.receipt th{padding:2px 0}
.receipt .rline{border-top:1px dashed #000;margin:4px 0}
.invoice-a4{max-width:800px;margin:0 auto;background:#fff;padding:30px}
.print-footer{margin-top:18px;border-top:2px solid #000;padding-top:8px;text-align:center;font-size:11.5px;font-weight:600}
.print-actions{max-width:800px;margin:12px auto;display:flex;gap:10px;justify-content:center}

/* Utility */
.text-right{text-align:right}.text-center{text-center}.text-muted{color:var(--muted)}
.mt{margin-top:14px}.mb{margin-bottom:14px}.flex{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.badge-num{font-weight:800}
.pos-link{position:fixed;bottom:0;left:0;right:0}
.empty{text-align:center;color:var(--muted);padding:30px}
.report-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.report-nav a{padding:8px 14px;background:#fff;border:1px solid var(--line);border-radius:20px;font-size:13px}
.report-nav a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
canvas{max-width:100%}

/* Responsive */
@media (max-width: 992px){
  .pos-shell{grid-template-columns:1fr}
  .pos-right{position:fixed;right:0;top:0;bottom:0;width:100%;max-width:400px;transform:translateX(100%);transition:.25s;z-index:120}
  .pos-right.open{transform:none}
  .three-col,.two-col{grid-template-columns:1fr}
}
@media (max-width: 860px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .hamburger{display:block}
}
@media print{
  .sidebar,.topbar,.app-footer,.print-actions,.no-print{display:none!important}
  .main{margin:0}.content{padding:0}
  body{background:#fff}
}