:root{
  --blue:#1f8fd6;
  --blue-dark:#136ba3;
  --ink:#1c2733;
  --muted:#6b7785;
  --border:#e4e8ec;
  --bg:#f5f7f9;
  --green:#1f9d55;
  --red:#d64545;
  --amber:#c98a0e;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);}
a{color:var(--blue-dark);text-decoration:none}
.app-shell{display:flex;min-height:100vh}
.sidebar{width:230px;background:#12202e;color:#cfd8e0;flex-shrink:0;display:flex;flex-direction:column;padding:20px 14px;min-height:100vh}
.brand{display:flex;align-items:center;gap:10px;padding:6px 6px 22px}
.brand-mark{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--blue-dark));display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:13px}
.brand-title{font-weight:700;color:#fff;font-size:14px}
.brand-sub{font-size:11px;color:#8fa1b3;text-transform:uppercase;letter-spacing:.04em}
.nav{display:flex;flex-direction:column;gap:2px}
.nav a{padding:10px 12px;border-radius:8px;color:#cfd8e0;font-size:14px}
.nav a:hover{background:#1c2f42}
.nav a.active{background:var(--blue);color:#fff}
.sidebar-user{margin-top:auto;padding-top:16px;border-top:1px solid #22384d}
.sidebar-user-name{color:#fff;font-size:13px;font-weight:600;margin-bottom:2px}
.sidebar-user-role{color:#7893a8;font-size:11px;text-transform:uppercase;letter-spacing:.03em;margin-bottom:8px}
.sidebar-logout{font-size:12.5px;color:#8fa1b3}
.sidebar-logout:hover{color:#fff}
.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.login-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:36px;width:100%;max-width:380px;box-shadow:0 10px 30px rgba(20,40,60,.06)}
.login-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.login-title{font-size:18px;font-weight:700;margin:0 0 4px}
.login-sub{color:var(--muted);font-size:13px;margin:0 0 22px}
.login-card .btn{width:100%;margin-top:6px}
.main{flex:1;padding:28px 34px;max-width:1180px}
h1{font-size:22px;margin:0 0 4px}
h2{font-size:17px;margin:0 0 12px}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:20px;gap:12px;flex-wrap:wrap}
.subtitle{color:var(--muted);font-size:13px;margin:0}
.card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:1fr 1fr}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
label{display:block;font-size:12.5px;font-weight:600;color:#3a4652;margin-bottom:5px}
input[type=text],input[type=number],input[type=date],input[type=password],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff;color:var(--ink);
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue)}
.field{margin-bottom:14px}
.btn{display:inline-block;padding:9px 16px;border-radius:8px;border:1px solid var(--blue);background:var(--blue);color:#fff;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{background:var(--blue-dark)}
.btn-outline{background:#fff;color:var(--blue-dark)}
.btn-outline:hover{background:#eef7fd}
.btn-danger{background:#fff;color:var(--red);border-color:var(--red)}
.btn-danger:hover{background:#fdeeee}
.btn-sm{padding:5px 10px;font-size:12.5px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
tr:hover td{background:#fafcfd}
.badge{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.02em}
.badge-draft{background:#eceef0;color:#5b6570}
.badge-pending{background:#fdf3df;color:var(--amber)}
.badge-valid{background:#e4f7ea;color:var(--green)}
.badge-invalid,.badge-error{background:#fbe7e7;color:var(--red)}
.badge-master{background:#eef0fb;color:#3c34a5}
.badge-staff{background:#eceef0;color:#5b6570}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px}
.alert-success{background:#e4f7ea;color:#166a35;border:1px solid #b8e6c6}
.alert-error{background:#fbe7e7;color:#9c2b2b;border:1px solid #f2bcbc}
.alert-info{background:#e8f3fb;color:#155a86;border:1px solid #bfe0f3}
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:18px}
.stat-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em;margin-bottom:6px}
.stat-value{font-size:24px;font-weight:700}
.text-muted{color:var(--muted)}
.text-right{text-align:right}
.actions-row{display:flex;gap:8px;flex-wrap:wrap}
.item-row{display:grid;grid-template-columns:1.4fr 1fr .8fr .7fr .7fr .8fr .8fr auto;gap:8px;align-items:end;margin-bottom:10px}
.item-row-head{display:grid;grid-template-columns:1.4fr 1fr .8fr .7fr .7fr .8fr .8fr auto;gap:8px;font-size:11px;color:var(--muted);text-transform:uppercase;margin-bottom:6px}
.totals-box{max-width:340px;margin-left:auto}
.totals-box div{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}
.totals-box .grand{font-weight:700;font-size:17px;border-top:1px solid var(--border);margin-top:4px;padding-top:10px}
.invoice-print{background:#fff;border:1px solid var(--border);border-radius:12px;padding:34px;max-width:900px}
.invoice-print h2{font-size:20px;color:var(--blue-dark);text-align:center;letter-spacing:.05em}
.invoice-meta{display:flex;justify-content:space-between;margin:18px 0;font-size:13.5px}
.invoice-parties{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}
.party-box{border:1px solid var(--border);border-radius:8px;padding:12px 14px}
.party-box .role{font-size:11px;text-transform:uppercase;color:#fff;background:var(--blue);display:inline-block;padding:2px 10px;border-radius:5px;margin-bottom:8px}
.invoice-print table th{background:var(--blue);color:#fff}
.remove-btn{background:none;border:none;color:var(--red);cursor:pointer;font-size:18px;line-height:1}
@media print{
  .sidebar,.no-print{display:none !important}
  .main{padding:0}
  .app-shell{display:block}
  .invoice-print{border:none;padding:0}
}