:root{--navy:#17263e;--blue:#2469ae;--bg:#f4f6fa;--border:#e1e6ee;--muted:#64748b;--white:#fff}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);font:14px/1.48 -apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:#17243a}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
header{background:var(--navy);color:#fff;padding:16px 24px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
header strong{font-size:21px;letter-spacing:.5px}
header small{opacity:.72}
header a{color:#fff}
header select{background:#fff;color:#14233d;border:0;border-radius:7px;padding:9px}
header .right{margin-left:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
header .demo{background:#f5d7a7;color:#75451e;padding:6px 10px;border-radius:25px;font-weight:700;font-size:11px}
nav{display:flex;gap:8px;padding:12px 24px;background:#fff;border-bottom:1px solid var(--border);flex-wrap:wrap}
nav button{border:0;background:transparent;padding:9px 13px;color:#4a5e77;border-radius:8px}
nav button.active{background:#e8f1fb;color:#185a9c;font-weight:700}
main{max-width:1160px;margin:24px auto;padding:0 18px}
.panel{background:white;border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:18px;box-shadow:0 2px 5px #13223808}
.headrow{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
h1{font-size:23px;margin:0 0 4px}
h2{font-size:17px;margin:0 0 14px}
p.sub{color:var(--muted);margin:0 0 19px}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}
.stat{background:#fff;border:1px solid var(--border);padding:17px;border-radius:11px}
.stat .val{font-size:23px;font-weight:750;margin-top:9px}
.stat .label{color:var(--muted);font-size:12px}
table{border-collapse:collapse;width:100%;font-size:13px}
th,td{text-align:left;padding:10px 9px;border-bottom:1px solid var(--border);vertical-align:middle}
th{color:#51627b;background:#f8fafc;font-size:12px}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.pill{padding:4px 8px;border-radius:20px;font-size:11px;white-space:nowrap;background:#f1f5f9;color:#45566f}
.pill.paid{background:#e0f5e8;color:#167444}
.pill.late{background:#ffe6e6;color:#ad3030}
.pill.pending{background:#fff1d5;color:#98621c}
.pill.valid{background:#e2eefc;color:#1e5a9d}
.btn{background:#2469ae;color:white;border:1px solid #2469ae;padding:9px 13px;border-radius:8px;font-weight:600}
a.btn{display:inline-block;text-decoration:none}
label.photo{display:inline-block;font-size:14px;cursor:pointer}
.btn.secondary{background:#fff;color:#34506f;border-color:#cbd5e1}
.btn.danger{background:#fff;color:#b42330;border-color:#ffc9cd}
.btn.small{padding:5px 8px;font-weight:500;font-size:12px}
.btn:disabled{opacity:.35;cursor:not-allowed}
label{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:12px;color:#44546c}
input,select,textarea{min-width:0;width:100%;padding:10px 11px;border:1px solid #cbd5e1;border-radius:7px;background:white;color:#17243a}
input[type=checkbox]{width:auto;padding:0}
input:focus,select:focus{outline:2px solid #93c5fd}
input[type=number]{text-align:right}
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.actions{display:flex;gap:7px;flex-wrap:wrap}
.muted{color:var(--muted)}
.totals{margin-left:auto;width:min(100%,360px);line-height:2}
.totals div{display:flex;justify-content:space-between;gap:10px}
.totals .grand{border-top:2px solid #17263e;font-size:19px;font-weight:750}
.foot{font-size:12px;color:#607087;margin-top:15px}
.warning{background:#fff7e9;color:#7a521d;padding:10px 13px;border-radius:8px;margin:12px 0}
.danger-text{color:#ae2b39}
.empty{color:#64748b;text-align:center;padding:22px}
.invoice-mark{display:flex;gap:12px;align-items:center}
.invoice-mark .icon{font-size:34px}
.invoice-mark strong{font-size:26px;letter-spacing:2px}
.invoice-brand{padding-bottom:12px;border-bottom:2px solid #1b2841}
.nowrap{white-space:nowrap}
#printArea{display:none}
.stack{display:flex;gap:8px;flex-wrap:wrap}
.hidden{display:none!important}
@media(max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}
.grid,.grid.two{grid-template-columns:1fr}
table{font-size:11px}
th,td{padding:8px 5px}
main{margin:14px auto}
header{padding:12px}
}
@media print{body>*:not(#printArea){display:none!important}
#printArea{display:block!important;position:static!important;background:white!important;color:black!important;padding:6mm 6mm!important}
#printArea table{font-size:11px}
#printArea h2{font-size:20px}
#printArea .invoice-details{display:flex;justify-content:space-between;margin:18px 0}
}
.header-logo{background:#fff;border-radius:9px;padding:6px 10px;display:flex;align-items:center;max-width:330px;min-height:60px}
.header-logo img{display:block;width:100%;height:auto;max-height:72px;object-fit:contain}
.invoice-brand{display:flex;align-items:center;min-height:90px}
.invoice-logo{display:block;width:min(100%,650px);height:auto;max-height:128px;object-fit:contain;object-position:left center}
@media(max-width:760px){.header-logo{max-width:250px}
}
@media print{#printArea .invoice-logo{width:100%;max-width:170mm;max-height:40mm}
#printArea .invoice-brand{break-inside:avoid}
}
#error{margin:12px 24px}