/* ==========================================================
   Ledger POS — Application Stylesheet
   Classic ledger-book aesthetic: serif type, brass accents,
   paper background. Matches the approved design mockup.
========================================================== */
:root{
  --paper:#F6F2E8;
  --paper-deep:#EFE9D8;
  --surface:#FFFFFF;
  --surface-alt:#FBF8F1;
  --ink:#1E2A38;
  --ink-soft:#4B5A6C;
  --ink-faint:#8A93A0;
  --brass:#A6790A;
  --brass-light:#C79A3A;
  --brass-pale:#F0E2C0;
  --ledger-green:#2F5233;
  --ledger-green-pale:#E4EDE3;
  --ledger-red:#963A34;
  --ledger-red-pale:#F3E2DF;
  --line:#DCD3BC;
  --line-soft:#EAE3D2;
  --shadow: 0 1px 2px rgba(30,42,56,.04), 0 8px 24px -12px rgba(30,42,56,.18);
  --radius: 3px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'PT Serif', Georgia, 'Times New Roman', serif;
  font-size:14.5px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.display{font-family:'Playfair Display', Georgia, serif; font-weight:600; color:var(--ink); margin:0;}
.mono{font-family:'IBM Plex Mono', 'Courier New', monospace;}
a{color:inherit; text-decoration:none;}
button{font-family:inherit;}
::selection{background:var(--brass-pale);}
::-webkit-scrollbar{width:9px;height:9px;}
::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px;}
::-webkit-scrollbar-track{background:transparent;}

/* ---------- Login ---------- */
.login-page{
  min-height:100vh; display:flex; align-items:center; justify-content:center;
  background: radial-gradient(1100px 500px at 50% -10%, #FBF7EC 0%, var(--paper) 60%);
  position:relative;
}
.login-page::before{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(var(--line-soft) 1px, transparent 1px);
  background-size:100% 42px; opacity:.4; pointer-events:none;
}
.login-card{position:relative; width:380px; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow); padding:40px 36px 32px;}
.login-mark{display:flex; flex-direction:column; align-items:center; gap:6px; margin-bottom:28px;}
.login-mark .seal{width:52px;height:52px;border-radius:50%; border:1.5px solid var(--brass); display:flex;align-items:center;justify-content:center; font-family:'Playfair Display',serif; font-weight:700; font-size:20px; color:var(--brass);}
.login-mark .brand{font-size:22px; letter-spacing:.5px;}
.login-mark .tagline{font-size:11px; letter-spacing:2.5px; text-transform:uppercase; color:var(--ink-faint);}
.field{margin-bottom:16px;}
.field label{display:block; font-size:11.5px; letter-spacing:1.2px; text-transform:uppercase; color:var(--ink-soft); margin-bottom:6px;}
.field input, .field select{width:100%; padding:11px 12px; border:1px solid var(--line); background:var(--surface-alt); border-radius:var(--radius); font-family:'PT Serif',serif; font-size:14.5px; color:var(--ink);}
.field input:focus, .field select:focus{outline:2px solid var(--brass-light); outline-offset:1px; background:#fff;}
.btn-primary{width:100%; padding:12px; background:var(--ink); color:#F6F2E8; border:none; border-radius:var(--radius); font-size:13px; letter-spacing:1.5px; text-transform:uppercase; cursor:pointer; margin-top:6px;}
.btn-primary:hover{background:#2B3B4E;}
.login-foot{text-align:center; font-size:12px; color:var(--ink-faint); margin-top:18px;}
.alert{padding:10px 14px; border-radius:var(--radius); font-size:12.5px; margin-bottom:16px;}
.alert-error{background:var(--ledger-red-pale); color:var(--ledger-red); border:1px solid var(--ledger-red);}
.alert-success{background:var(--ledger-green-pale); color:var(--ledger-green); border:1px solid var(--ledger-green);}

/* ---------- App shell ---------- */
#app{display:flex; min-height:100vh;}
.sidebar{width:236px; flex-shrink:0; background:var(--ink); color:#DCE3EA; display:flex; flex-direction:column; height:100vh; position:sticky; top:0;}
.sidebar-brand{display:flex; align-items:center; gap:10px; padding:22px 20px 18px; border-bottom:1px solid rgba(255,255,255,.08);}
.sidebar-brand .seal{width:34px;height:34px;border-radius:50%;border:1px solid var(--brass-light); display:flex;align-items:center;justify-content:center; font-family:'Playfair Display',serif;font-weight:700;color:var(--brass-light);font-size:14px;}
.sidebar-brand .name{font-family:'Playfair Display',serif; font-size:16.5px; color:#fff; font-weight:600;}
.sidebar-brand .name span{display:block; font-family:'PT Serif',serif; font-size:9.5px; letter-spacing:2px; text-transform:uppercase; color:#8FA0AE; font-weight:400;}
.nav-scroll{flex:1; overflow-y:auto; padding:14px 0 20px;}
.nav-group-label{font-size:10px; letter-spacing:1.8px; text-transform:uppercase; color:#6F7F8F; padding:14px 20px 6px;}
.nav-item{display:flex; align-items:center; gap:11px; padding:9px 20px; font-size:13.5px; color:#C6D0D9; cursor:pointer; border-left:2px solid transparent;}
.nav-item:hover{background:rgba(255,255,255,.04); color:#fff;}
.nav-item.active{background:rgba(199,154,58,.12); color:#fff; border-left:2px solid var(--brass-light);}
.nav-item .ic{width:16px; text-align:center; font-size:14px; opacity:.9;}
.sidebar-foot{padding:14px 20px; border-top:1px solid rgba(255,255,255,.08); font-size:11.5px; color:#7C8D9B; display:flex; justify-content:space-between;}
.main{flex:1; min-width:0; display:flex; flex-direction:column; height:100vh; overflow:hidden;}
.topbar{height:60px; flex-shrink:0; background:var(--surface); border-bottom:1px solid var(--line); display:flex; align-items:center; justify-content:space-between; padding:0 26px;}
.topbar .crumb{font-size:11.5px; letter-spacing:1.5px; text-transform:uppercase; color:var(--ink-faint);}
.topbar .crumb b{color:var(--ink); font-weight:600;}
.topbar-right{display:flex; align-items:center; gap:18px;}
.badge-shift{font-size:11.5px; padding:5px 10px; border:1px solid var(--ledger-green); color:var(--ledger-green); border-radius:20px; background:var(--ledger-green-pale);}
.avatar{width:32px;height:32px;border-radius:50%; background:var(--brass-pale); color:var(--brass); display:flex;align-items:center;justify-content:center; font-weight:700; font-size:13px; font-family:'Playfair Display',serif; border:1px solid var(--brass-light);}
.content{flex:1; overflow-y:auto; padding:26px 30px 60px;}

.page-head{display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:22px; flex-wrap:wrap; gap:12px;}
.page-head h1{font-size:25px;}
.page-head p{margin:4px 0 0; color:var(--ink-soft); font-size:13px;}
.btn{padding:9px 16px; border-radius:var(--radius); font-size:12.5px; letter-spacing:.5px; border:1px solid var(--line); background:var(--surface); cursor:pointer; color:var(--ink); display:inline-flex; align-items:center; gap:7px;}
.btn:hover{border-color:var(--brass-light); color:var(--brass);}
.btn-dark{background:var(--ink); color:#F6F2E8; border-color:var(--ink);}
.btn-dark:hover{background:#2B3B4E; color:#fff;}
.btn-brass{background:var(--brass); color:#fff; border-color:var(--brass);}
.btn-brass:hover{background:#8F6608;}
.btn-danger{background:var(--ledger-red-pale); color:var(--ledger-red); border-color:var(--ledger-red);}

.kpi-row{display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px;}
.kpi{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:18px 18px 16px; position:relative; overflow:hidden;}
.kpi::before{content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--brass-light);}
.kpi .label{font-size:10.5px; letter-spacing:1.5px; text-transform:uppercase; color:var(--ink-faint);}
.kpi .value{font-family:'Playfair Display',serif; font-size:26px; margin-top:6px; font-weight:600;}
.kpi .delta{font-size:11.5px; margin-top:5px; color:var(--ledger-green);}
.kpi .delta.down{color:var(--ledger-red);}

.panel-row{display:grid; grid-template-columns:1.5fr 1fr; gap:16px; margin-bottom:20px;}
.panel{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:20px 22px; margin-bottom:16px;}
.panel h3{font-size:15.5px; margin-bottom:14px; display:flex; align-items:center; justify-content:space-between;}
.panel h3 small{font-family:'PT Serif',serif; font-size:11px; color:var(--ink-faint); font-weight:400;}

.bars{display:flex; align-items:flex-end; gap:10px; height:150px; padding-top:10px;}
.bars .bar-col{flex:1; display:flex; flex-direction:column; align-items:center; gap:6px;}
.bars .bar{width:100%; background:linear-gradient(180deg, var(--brass-light), var(--brass)); border-radius:2px 2px 0 0;}
.bars .bar-label{font-size:10px; color:var(--ink-faint);}

.mini-list{list-style:none; margin:0; padding:0;}
.mini-list li{display:flex; justify-content:space-between; padding:9px 0; border-bottom:1px dashed var(--line-soft); font-size:13px;}
.mini-list li:last-child{border-bottom:none;}
.mini-list .qty{color:var(--ink-faint); font-size:11.5px;}

table{width:100%; border-collapse:collapse; font-size:13.3px;}
thead th{text-align:left; font-size:10.5px; letter-spacing:1.2px; text-transform:uppercase; color:var(--ink-faint); padding:10px 12px; border-bottom:1.5px solid var(--ink); font-weight:600;}
tbody td{padding:11px 12px; border-bottom:1px solid var(--line-soft); vertical-align:middle;}
tbody tr:hover{background:var(--surface-alt);}
.tag{display:inline-block; padding:3px 9px; border-radius:20px; font-size:11px; font-family:'IBM Plex Mono',monospace;}
.tag.in{background:var(--ledger-green-pale); color:var(--ledger-green);}
.tag.low{background:#FBF0DC; color:#8A5A00;}
.tag.out{background:var(--ledger-red-pale); color:var(--ledger-red);}
.tag.paid{background:var(--ledger-green-pale); color:var(--ledger-green);}
.tag.due{background:var(--ledger-red-pale); color:var(--ledger-red);}
.tag.active-mod{background:var(--ledger-green-pale); color:var(--ledger-green);}
.tag.inactive-mod{background:#EEE9DC; color:var(--ink-faint);}

.toolbar{display:flex; align-items:center; justify-content:space-between; margin-bottom:14px; gap:12px; flex-wrap:wrap;}
.search{display:flex; align-items:center; gap:8px; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:8px 12px; min-width:260px; color:var(--ink-faint); font-size:13px;}
.search input{border:none; background:none; outline:none; font-family:inherit; font-size:13px; width:100%; color:var(--ink);}
.table-wrap{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;}
.table-foot{display:flex; justify-content:space-between; align-items:center; padding:12px 16px; font-size:12px; color:var(--ink-faint); border-top:1px solid var(--line-soft);}
.empty-row td{text-align:center; color:var(--ink-faint); padding:30px 12px;}

/* ---------- forms ---------- */
.form-grid{display:grid; grid-template-columns:1fr 1fr; gap:16px 18px;}
.form-grid .full{grid-column:1/-1;}
.form-group{margin-bottom:14px;}
.form-group label{display:block; font-size:11.5px; letter-spacing:1px; text-transform:uppercase; color:var(--ink-soft); margin-bottom:6px;}
.form-group input, .form-group select, .form-group textarea{width:100%; padding:10px 11px; border:1px solid var(--line); background:var(--surface-alt); border-radius:var(--radius); font-family:'PT Serif',serif; font-size:13.5px; color:var(--ink);}
.form-group textarea{resize:vertical; min-height:70px;}
.form-hint{font-size:11px; color:var(--ink-faint); margin-top:5px;}
.modal-backdrop{position:fixed; inset:0; background:rgba(30,42,56,.45); display:none; align-items:center; justify-content:center; z-index:50;}
.modal-backdrop.open{display:flex;}
.modal{background:var(--surface); border-radius:var(--radius); width:520px; max-width:92vw; max-height:88vh; overflow-y:auto; padding:24px 26px; box-shadow:var(--shadow);}
.modal-head{display:flex; justify-content:space-between; align-items:center; margin-bottom:16px;}
.modal-close{cursor:pointer; color:var(--ink-faint); font-size:20px; background:none; border:none;}

.toggle-row{display:flex; align-items:center; justify-content:space-between; padding:12px 0; border-bottom:1px solid var(--line-soft);}
.toggle-row .tname{font-size:13.5px; font-weight:700;}
.toggle-row .tdesc{font-size:11.5px; color:var(--ink-faint); margin-top:2px;}
.switch-check{display:none;}
.switch-label{width:38px;height:20px; border-radius:20px; background:var(--line); position:relative; cursor:pointer; flex-shrink:0; display:inline-block;}
.switch-label::after{content:""; position:absolute; width:16px;height:16px; border-radius:50%; background:#fff; top:2px; left:2px; box-shadow:0 1px 2px rgba(0,0,0,.3); transition:left .15s;}
.switch-check:checked + .switch-label{background:var(--ledger-green);}
.switch-check:checked + .switch-label::after{left:20px;}
.logo-upload{width:100%; padding:20px; border:1.5px dashed var(--line); border-radius:var(--radius); text-align:center; color:var(--ink-faint); font-size:12.5px; background:var(--surface-alt); cursor:pointer;}

/* ---------- settings tabs ---------- */
.settings-grid{display:grid; grid-template-columns:220px 1fr; gap:24px;}
.settings-tabs{display:flex; flex-direction:column; gap:2px;}
.settings-tab{padding:10px 14px; border-radius:var(--radius); font-size:13px; color:var(--ink-soft); display:block;}
.settings-tab.active{background:var(--ink); color:#fff;}
.settings-tab:hover:not(.active){background:var(--surface-alt);}

/* ---------- module manager ---------- */
.module-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px;}
.module-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:18px; display:flex; flex-direction:column; gap:10px;}
.module-top{display:flex; align-items:flex-start; justify-content:space-between;}
.module-icon{width:38px;height:38px; border-radius:8px; background:var(--paper-deep); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; font-size:17px; color:var(--brass);}
.module-card h4{font-size:14.5px; font-family:'Playfair Display',serif;}
.module-card .mdesc{font-size:12px; color:var(--ink-soft); line-height:1.5; min-height:36px;}
.module-meta{display:flex; justify-content:space-between; align-items:center; font-size:11px; color:var(--ink-faint); border-top:1px solid var(--line-soft); padding-top:10px;}
.install-zone{border:1.5px dashed var(--brass-light); background:var(--brass-pale); border-radius:var(--radius); padding:26px; text-align:center; margin-bottom:22px;}
.install-zone h3{font-size:16px; margin-bottom:6px;}
.install-zone p{font-size:12.5px; color:#7a5a10; margin:0 0 14px;}

/* ---------- POS terminal ---------- */
.pos-wrap{display:grid; grid-template-columns:1fr 380px; gap:18px; height:calc(100vh - 60px - 52px - 26px);}
.pos-catalog{overflow-y:auto; padding-right:4px;}
.pos-cats{display:flex; gap:8px; margin-bottom:16px; flex-wrap:wrap;}
.cat-pill{padding:7px 14px; border:1px solid var(--line); border-radius:20px; font-size:12.5px; cursor:pointer; background:var(--surface);}
.cat-pill.active{background:var(--brass); border-color:var(--brass); color:#fff;}
.product-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:14px;}
.product-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:14px 12px; cursor:pointer; text-align:left;}
.product-card:hover{border-color:var(--brass-light); box-shadow:var(--shadow);}
.product-thumb{width:100%; height:64px; border-radius:2px; margin-bottom:10px; background:linear-gradient(135deg,var(--paper-deep),var(--surface-alt)); display:flex; align-items:center; justify-content:center; color:var(--brass); font-family:'Playfair Display',serif; font-weight:700; font-size:18px; border:1px solid var(--line-soft);}
.product-card .pname{font-size:12.8px; font-weight:700; margin-bottom:3px; font-family:'PT Serif',serif;}
.product-card .psku{font-size:10px; color:var(--ink-faint); font-family:'IBM Plex Mono',monospace;}
.product-card .pprice{margin-top:8px; font-family:'IBM Plex Mono',monospace; font-size:13.5px; color:var(--ink);}
.cart-panel{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); display:flex; flex-direction:column;}
.cart-head{padding:16px 18px; border-bottom:1px solid var(--line-soft); display:flex; justify-content:space-between; align-items:center;}
.cart-head h3{font-size:15px;}
.cart-items{flex:1; overflow-y:auto; padding:8px 18px; min-height:120px;}
.cart-row{display:flex; justify-content:space-between; align-items:center; padding:11px 0; border-bottom:1px dashed var(--line-soft);}
.cart-row .ci-name{font-size:13px; font-weight:700;}
.cart-row .ci-meta{font-size:11px; color:var(--ink-faint); font-family:'IBM Plex Mono',monospace;}
.qty-stepper{display:flex; align-items:center; gap:8px; margin-top:4px;}
.qty-stepper button{width:20px;height:20px; border:1px solid var(--line); background:var(--surface-alt); border-radius:3px; cursor:pointer; font-size:12px; line-height:1;}
.qty-stepper span{font-family:'IBM Plex Mono',monospace; font-size:12.5px;}
.cart-row .ci-total{font-family:'IBM Plex Mono',monospace; font-size:13.5px;}
.cart-summary{padding:16px 18px; border-top:1px solid var(--line-soft); background:var(--surface-alt);}
.sum-line{display:flex; justify-content:space-between; font-size:13px; padding:4px 0; color:var(--ink-soft);}
.sum-line.total{font-size:18px; font-family:'Playfair Display',serif; font-weight:700; color:var(--ink); border-top:1px solid var(--line); margin-top:8px; padding-top:10px;}
.pay-methods{display:flex; gap:8px; margin:12px 0;}
.pay-methods label{flex:1;}
.pay-methods input{display:none;}
.pay-methods span{display:block; padding:9px 4px; border:1px solid var(--line); background:var(--surface); border-radius:var(--radius); font-size:12px; cursor:pointer; text-align:center;}
.pay-methods input:checked + span{border-color:var(--brass); background:var(--brass-pale); color:#8A5A00;}
.btn-checkout{width:100%; padding:13px; background:var(--ledger-green); color:#fff; border:none; border-radius:var(--radius); font-size:14px; letter-spacing:1px; cursor:pointer;}
.btn-checkout:disabled{opacity:.5; cursor:not-allowed;}

/* ---------- receipt / invoice ---------- */
.invoice-stage{display:flex; gap:26px; align-items:flex-start; flex-wrap:wrap;}
.receipt{width:320px; background:#FFFEF9; border:1px solid var(--line); box-shadow:var(--shadow); padding:26px 22px 30px; font-family:'IBM Plex Mono',monospace; font-size:12px; color:#1A2432;}
.r-brand{text-align:center; margin-bottom:6px;}
.r-brand .seal{width:40px;height:40px; border-radius:50%; border:1.5px solid var(--brass); margin:0 auto 8px; display:flex; align-items:center; justify-content:center; font-family:'Playfair Display',serif; font-weight:700; color:var(--brass); font-size:16px;}
.r-brand img.seal-img{width:40px;height:40px;border-radius:50%;object-fit:cover;margin:0 auto 8px;display:block;border:1.5px solid var(--brass);}
.r-brand .rname{font-family:'Playfair Display',serif; font-size:17px; font-weight:700; letter-spacing:.5px;}
.r-brand .raddr{font-size:10.5px; color:#5a6472; margin-top:4px; line-height:1.5;}
.r-div{border-top:1px dashed #B9AF95; margin:12px 0;}
.r-meta{display:flex; justify-content:space-between; font-size:11px; margin-bottom:3px; color:#3a4351;}
.r-items{margin:10px 0;}
.r-item{display:flex; justify-content:space-between; margin-bottom:7px;}
.r-item .ri-name{max-width:190px;}
.r-item .ri-sub{font-size:10px; color:#7c8593; display:block;}
.r-totals{margin-top:8px;}
.r-totals .rt-line{display:flex; justify-content:space-between; padding:2px 0; font-size:11.5px;}
.r-totals .rt-line.grand{font-size:15px; font-weight:700; border-top:1px solid #1A2432; margin-top:6px; padding-top:8px;}
.r-paid{margin:16px auto 4px; width:fit-content; border:2px solid var(--ledger-green); color:var(--ledger-green); padding:4px 16px; transform:rotate(-4deg); font-family:'Playfair Display',serif; font-weight:700; letter-spacing:2px; font-size:13px; border-radius:3px;}
.r-due{margin:16px auto 4px; width:fit-content; border:2px solid var(--ledger-red); color:var(--ledger-red); padding:4px 16px; transform:rotate(-4deg); font-family:'Playfair Display',serif; font-weight:700; letter-spacing:2px; font-size:13px; border-radius:3px;}
.r-foot{text-align:center; font-size:10.5px; color:#7c8593; margin-top:14px; line-height:1.6;}
.r-barcode{margin:14px auto 0; height:34px; width:80%; background:repeating-linear-gradient(90deg,#1A2432 0 2px, transparent 2px 5px);}
.invoice-controls{flex:1; min-width:280px;}

.footnote{margin-top:40px; padding-top:16px; border-top:1px solid var(--line); font-size:11px; color:var(--ink-faint); text-align:center;}
.step-track{display:flex; align-items:center; margin-bottom:22px;}
.step{display:flex; align-items:center; gap:9px; color:var(--ink-faint); font-size:12px;}
.step .num{width:24px;height:24px;border-radius:50%; border:1.5px solid var(--line); display:flex; align-items:center; justify-content:center; font-family:'IBM Plex Mono',monospace; font-size:11px;}
.step.done .num{background:var(--ledger-green); border-color:var(--ledger-green); color:#fff;}
.step.now .num{background:var(--brass); border-color:var(--brass); color:#fff;}
.step.now, .step.done{color:var(--ink);}
.step-line{flex:1; height:1px; background:var(--line); margin:0 10px;}
.installer-shell{max-width:640px; margin:60px auto; background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:34px 40px; box-shadow:var(--shadow);}

@media print{
  body{background:#fff;}
  .no-print{display:none !important;}
  .receipt{box-shadow:none; border:none; margin:0 auto;}
}

@media (max-width: 1100px){
  .kpi-row{grid-template-columns:repeat(2,1fr);}
  .panel-row{grid-template-columns:1fr;}
  .product-grid{grid-template-columns:repeat(3,1fr);}
  .pos-wrap{grid-template-columns:1fr;}
  .module-grid{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;}
  .settings-grid{grid-template-columns:1fr;}
}