:root{
  /* LOMTEC premium identity: Orange / Deep Navy Blue / White */
  --navy:#0d2340;          /* deep navy blue */
  --blue:#ea6a12;          /* premium orange (primary) */
  --blue-light:#fdece0;    /* soft orange tint background */
  --blue-mid:#f2843f;      /* orange mid / hover */
  --gold:#ea6a12;
  --gold-deep:#c1530d;
  --black:#0d2340;
  --ink:#1a1a1a;
  --gray:#6b6660;
  --line:#dfe6f0;
  --bg:#f6f8fb;
  --white:#ffffff;
  --green:#1c7a4c;
  --amber:#ea6a12;
  --red:#b3261e;
  --radius:8px;
  --shadow:0 2px 14px rgba(13,35,64,0.08);
}

[data-theme="dark"]{
  --navy:#1a1a2e;
  --blue:#ea6a12;
  --blue-light:#2d2d44;
  --blue-mid:#f2843f;
  --gold:#ea6a12;
  --gold-deep:#c1530d;
  --black:#1a1a2e;
  --ink:#e0e0e0;
  --gray:#a0a0a0;
  --line:#3a3a4a;
  --bg:#12121a;
  --white:#1e1e2e;
  --green:#2ecc71;
  --amber:#ea6a12;
  --red:#e74c3c;
  --shadow:0 2px 14px rgba(0,0,0,0.3);
}
*{box-sizing:border-box;}
body{margin:0;font-family:'Segoe UI',Arial,sans-serif;background:var(--bg);color:var(--ink);}
h1,h2,h3{margin:0 0 6px 0;}
button{cursor:pointer;font-family:inherit;}
input,select,textarea{font-family:inherit;padding:9px 10px;border:1px solid var(--line);border-radius:7px;width:100%;font-size:14px;background:var(--white);color:var(--ink);}
input:focus,select:focus,textarea:focus{outline:2px solid var(--blue-mid);outline-offset:1px;}
label{font-size:12.5px;color:var(--gray);font-weight:600;display:block;margin-bottom:4px;}
.field{margin-bottom:12px;}
.btn{border:none;border-radius:6px;padding:10px 16px;font-weight:700;font-size:13.5px;letter-spacing:.2px;}
.btn-primary{background:var(--black);color:var(--gold);border:1px solid var(--black);}
.btn-primary:hover{background:#000;}
.btn-outline{background:#fff;border:1.5px solid var(--gold);color:var(--gold-deep);}
.btn-outline:hover{background:var(--blue-light);}
.btn-ghost{background:transparent;color:var(--gray);}
.btn-danger{background:#fff;color:var(--red);border:1px solid var(--red);}
.btn-sm{padding:6px 10px;font-size:12.5px;border-radius:5px;}

/* Layout */
#app{display:flex;min-height:100vh;}
.sidebar{width:236px;background:linear-gradient(180deg,#15294a,#081226);color:#fff;flex-shrink:0;display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;z-index:50;transition:transform .25s;border-right:2px solid var(--gold);}
.sidebar .brand{padding:24px 18px 18px;border-bottom:1px solid rgba(234,106,18,0.25);}
.sidebar .brand .logo-row{display:flex;align-items:center;gap:10px;}
.sidebar .brand img{width:40px;height:40px;border-radius:6px;object-fit:cover;background:#fff;}
.sidebar .brand .name{font-weight:800;font-size:14.5px;line-height:1.25;letter-spacing:.4px;color:#fff;}
.sidebar .brand .sub{font-size:10.5px;color:var(--gold);margin-top:2px;letter-spacing:.6px;text-transform:uppercase;}
.nav{flex:1;padding:16px 0;overflow-y:auto;}
.nav a{display:flex;align-items:center;gap:10px;padding:11px 20px;color:#cdd6e6;text-decoration:none;font-size:13.5px;font-weight:500;border-left:3px solid transparent;}
.nav a:hover{background:rgba(234,106,18,0.08);color:#fff;}
.nav a.active{background:rgba(234,106,18,0.14);color:var(--gold);border-left-color:var(--gold);font-weight:700;}
.nav .icon{width:18px;text-align:center;}
.sidebar .foot{padding:14px 20px;font-size:11px;color:#9aa7bf;border-top:1px solid rgba(234,106,18,0.2);}
.sidebar .foot a{color:var(--gold);}

.main{flex:1;margin-left:230px;min-width:0;}
.topbar{background:#fff;border-bottom:1px solid var(--line);border-top:3px solid var(--gold);padding:14px 26px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:30;}
.topbar h1{color:var(--black);font-weight:800;}
.topbar h1{font-size:19px;}
.topbar .meta{font-size:12.5px;color:var(--gray);}
.menu-toggle{display:none;background:none;border:none;font-size:22px;color:var(--navy);}
.content{padding:24px 26px 60px;}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px;}
.card{background:#fff;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);border-top:3px solid var(--gold);}
.card .label{font-size:11.5px;color:var(--gray);font-weight:700;text-transform:uppercase;letter-spacing:.5px;}
.card .value{font-size:26px;font-weight:800;color:var(--black);margin-top:6px;}
.card.green{border-top-color:var(--green);}
.card.amber{border-top-color:var(--gold);}
.card.red{border-top-color:var(--red);}
.card.blue{border-top-color:var(--blue);}
.card.orange{border-top-color:var(--blue-mid);}

.panel{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:20px;border:1px solid var(--line);}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;flex-wrap:wrap;gap:10px;}
.panel-head h2{font-size:15.5px;color:var(--black);font-weight:800;letter-spacing:.2px;border-left:4px solid var(--gold);padding-left:10px;}

table{width:100%;border-collapse:collapse;font-size:13.5px;}
th{text-align:left;background:var(--black);color:var(--gold);padding:10px;font-weight:700;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;}
td{padding:10px;border-bottom:1px solid var(--line);vertical-align:middle;}
tr:hover td{background:var(--blue-light);}
.table-wrap{overflow-x:auto;}
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:11.5px;font-weight:700;}
.badge.paid{background:#e3f7ec;color:var(--green);}
.badge.unpaid{background:#fdeaea;color:var(--red);}
.badge.partial{background:#fff3e0;color:var(--amber);}
.badge.draft{background:#eef1f6;color:var(--gray);}
.badge.sent{background:var(--blue-light);color:var(--blue);}

.empty{text-align:center;padding:40px 20px;color:var(--gray);}
.empty .big{font-size:34px;margin-bottom:8px;}

.modal-overlay{position:fixed;inset:0;background:rgba(11,37,69,0.45);display:flex;align-items:flex-start;justify-content:center;padding:30px 14px;overflow-y:auto;z-index:200;}
.modal{background:#fff;border-radius:12px;max-width:720px;width:100%;padding:24px;box-shadow:0 10px 40px rgba(0,0,0,0.2);}
.modal h2{color:var(--navy);font-size:18px;margin-bottom:16px;}
.modal-close{float:right;background:none;border:none;font-size:20px;color:var(--gray);cursor:pointer;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px;}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 14px;}
@media (max-width:600px){.grid2,.grid3{grid-template-columns:1fr;}}

.items-table input{padding:7px 8px;font-size:13px;}
.items-table th, .items-table td{padding:6px;}
.line-actions{display:flex;gap:8px;justify-content:flex-end;}
.icon-btn{background:none;border:none;color:var(--blue);font-size:15px;}
.icon-btn.danger{color:var(--red);}

.totals-box{margin-top:14px;display:flex;justify-content:flex-end;}
.totals-box table{width:280px;}
.totals-box td{padding:5px 8px;border:none;}
.totals-box .grand td{font-weight:800;color:var(--navy);font-size:15px;border-top:2px solid var(--line);}

.tabs{display:flex;gap:6px;border-bottom:2px solid var(--line);margin-bottom:18px;flex-wrap:wrap;}
.tab{padding:9px 14px;font-size:13.5px;font-weight:600;color:var(--gray);border-bottom:3px solid transparent;cursor:pointer;}
.tab.active{color:var(--blue);border-bottom-color:var(--blue);}

.search-bar{display:flex;gap:10px;margin-bottom:14px;flex-wrap:wrap;}
.search-bar input,.search-bar select{max-width:240px;}

#login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 30% 20%, #15294a, #061325 70%);padding:20px;}
.login-box{background:#fff;border-radius:10px;padding:40px 34px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,0.5);text-align:center;border-top:4px solid var(--gold);}
.login-box .logo-circle{width:68px;height:68px;border-radius:10px;background:var(--black);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-weight:800;color:var(--gold);font-size:22px;letter-spacing:1px;}
.login-box h1{font-size:18px;color:var(--black);letter-spacing:.3px;}
.login-box .sub{font-size:11.5px;color:var(--gold-deep);margin-bottom:22px;text-transform:uppercase;letter-spacing:.8px;font-weight:700;}
.login-box .field{text-align:left;}
.hint-box{background:var(--blue-light);border-radius:6px;padding:10px;font-size:11.5px;color:var(--black);margin-top:14px;text-align:left;line-height:1.5;border:1px solid var(--line);}

/* Printable document */
#doc-render{position:fixed;left:-9999px;top:0;width:760px;background:#fff;}
.doc{padding:0 0 40px;font-family:'Helvetica Neue',Arial,sans-serif;color:#1a1a1a;width:760px;background:#fff;}
.doc-topline{height:8px;background:linear-gradient(90deg,#c1530d,#f2843f);}
.doc-head{display:flex;justify-content:space-between;align-items:flex-start;padding:30px 40px 18px;border-bottom:2px solid #0d2340;}
.doc-head .co{display:flex;gap:14px;align-items:center;}
.doc-head .co img{width:64px;height:64px;border-radius:6px;object-fit:contain;background:#fff;border:1px solid #eee;}
.doc-head .co h2{margin:0;font-size:18px;color:#0d2340;letter-spacing:.3px;font-weight:800;}
.doc-head .co p{margin:2px 0;font-size:11px;color:#555;}
.doc-head .doctitle{text-align:right;}
.doc-head .doctitle h1{font-size:24px;color:#ea6a12;margin:0;letter-spacing:2px;font-weight:800;}
.doc-head .doctitle p{margin:2px 0;font-size:11.5px;color:#444;}
.doc-banner{background:#0d2340;color:#ea6a12;padding:8px 40px;font-size:11.5px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;}
.doc-body{padding:24px 40px 0;}
.doc-meta{display:flex;justify-content:space-between;margin-bottom:18px;font-size:12.5px;gap:20px;}
.doc-meta .block{flex:1;}
.doc-meta .block h4{margin:0 0 6px;font-size:10.5px;text-transform:uppercase;letter-spacing:.6px;color:#ea6a12;border-bottom:1px solid #eee;padding-bottom:4px;}
.doc-meta .block p{margin:1px 0;}
.doc table{width:100%;border-collapse:collapse;margin-bottom:14px;}
.doc th{background:#0d2340;color:#ea6a12;padding:9px 10px;font-size:11px;text-align:left;text-transform:uppercase;letter-spacing:.4px;}
.doc td{padding:9px 10px;border-bottom:1px solid #eee;font-size:12px;}
.doc .totals{width:280px;margin-left:auto;}
.doc .totals td{border:none;padding:5px 10px;font-size:12.5px;}
.doc .totals .grand{font-weight:800;font-size:15px;border-top:2px solid #0d2340;background:#fdece0;}
.doc .pay-box{display:flex;gap:16px;margin-top:18px;flex-wrap:wrap;}
.doc .pay-card{flex:1;min-width:220px;background:#fdf3ec;border-radius:6px;padding:13px 15px;border:1px solid #dfe6f0;border-left:3px solid #ea6a12;}
.doc .pay-card h4{margin:0 0 6px;color:#0d2340;font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;}
.doc .pay-card p{margin:2px 0;font-size:11.5px;}
.doc .terms{margin-top:18px;font-size:11px;color:#555;background:#fafafa;border-left:3px solid #0d2340;padding:10px 14px;border-radius:0 4px 4px 0;}
.doc .terms h4{margin:0 0 4px;color:#0d2340;font-size:11px;text-transform:uppercase;letter-spacing:.4px;}
.doc .approval-footer{margin-top:36px;text-align:center;}
.doc .approval-footer .name{font-weight:800;font-size:13px;color:#0d2340;letter-spacing:.3px;}
.doc .approval-footer .role{font-size:11px;color:#666;margin-top:2px;text-transform:uppercase;letter-spacing:1px;}
.doc .approval-footer .line{width:200px;border-top:1px solid #0d2340;margin:0 auto 8px;}
.doc .footer-note{margin-top:26px;padding:14px 40px;font-size:10.5px;color:#777;text-align:center;border-top:1px solid #eee;background:#fafafa;}
.doc .status-stamp{display:inline-block;padding:5px 16px;border:2px solid #1c7a4c;color:#1c7a4c;font-weight:800;border-radius:4px;font-size:13px;letter-spacing:1.5px;transform:rotate(-4deg);}
.doc .status-stamp.due{border-color:#ea6a12;color:#c1530d;}

@media (max-width:880px){
  .sidebar{transform:translateX(-100%);}
  .sidebar.open{transform:translateX(0);}
  .main{margin-left:0;}
  .menu-toggle{display:block;}
  .cards{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));}
}