:root{
  --bg:#f5f6f8; --panel:#fff; --ink:#18202a; --muted:#65707d; --line:#dfe3e8;
  --accent:#0f5f8a; --accent-ink:#fff; --ok:#0f7b4f; --warn:#8a5a00; --danger:#a01818;
  --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 18px}

header.top{background:#101820;color:#fff}
header.top .wrap{display:flex;align-items:center;gap:18px;min-height:58px;flex-wrap:wrap}
.brand{font-weight:700;letter-spacing:.02em;color:#fff;white-space:nowrap}
.brand small{display:block;font-weight:400;font-size:11px;color:#9fb0c0;letter-spacing:.08em;text-transform:uppercase}
nav.main{display:flex;gap:4px;flex-wrap:wrap;flex:1}
nav.main a{color:#c8d4e0;padding:8px 10px;border-radius:8px;font-size:14px}
nav.main a:hover{background:#1c2836;text-decoration:none}
nav.main a.active{background:#22303f;color:#fff}
.who{display:flex;align-items:center;gap:10px;font-size:13px;color:#9fb0c0}
.who form{margin:0}
.who button{background:transparent;border:1px solid #35455a;color:#c8d4e0;border-radius:8px;padding:6px 10px;cursor:pointer;font-size:13px}

main{padding:26px 0 60px}
h1{font-size:24px;margin:0 0 4px;letter-spacing:-.01em}
h2{font-size:17px;margin:28px 0 10px}
.sub{color:var(--muted);margin:0 0 18px;font-size:14px}
.row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.panel + .panel{margin-top:16px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:18px 0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.card .k{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.card .v{font-size:26px;font-weight:700;margin-top:6px;letter-spacing:-.02em}
.card .d{font-size:13px;color:var(--muted);margin-top:2px}

table.list{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.list th,table.list td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px;vertical-align:middle}
table.list th{background:#fafbfc;font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600}
table.list tr:last-child td{border-bottom:0}
table.list tr:hover td{background:#fafcff}
.num{font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
.strong{font-weight:600}

.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid transparent}
.badge.draft{background:#eef1f4;color:#4d5a68}
.badge.issued{background:#e7f2fb;color:#0f5f8a}
.badge.cancelled{background:#f2f2f2;color:#777;text-decoration:line-through}
.badge.sent{background:#e6f5ec;color:#0f7b4f}
.badge.delivered{background:#d9f0e3;color:#0b5f3c}
.badge.failed{background:#fdeaea;color:var(--danger)}
.badge.none{background:#f2f2f2;color:#666}
.badge.credit{background:#fdeeee;color:#8b1c1c}

.btn{display:inline-flex;align-items:center;gap:7px;background:var(--accent);color:var(--accent-ink);border:1px solid transparent;border-radius:9px;padding:9px 14px;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{text-decoration:none;filter:brightness(1.06)}
.btn.secondary{background:#fff;color:var(--ink);border-color:#c9d2db}
.btn.ghost{background:transparent;color:var(--accent);border-color:transparent;padding:6px 8px}
.btn.danger{background:#fff;color:var(--danger);border-color:#e3b4b4}
.btn.small{padding:6px 10px;font-size:13px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

form.stacked label{display:block;font-size:13px;font-weight:600;margin:14px 0 5px}
input[type=text],input[type=email],input[type=date],input[type=number],input[type=password],select,textarea{
  width:100%;padding:9px 10px;border:1px solid #c9d2db;border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #b9d9ec;border-color:var(--accent)}
textarea{min-height:80px;resize:vertical}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.hint{font-size:12px;color:var(--muted);margin-top:4px}

.flash{padding:11px 14px;border-radius:9px;margin-bottom:16px;font-size:14px;border:1px solid}
.flash.ok{background:#eaf8f0;border-color:#bfe3ce;color:#0b5f3c}
.flash.err{background:#fdeeee;border-color:#efc2c2;color:#8b1c1c}

table.lines-edit{width:100%;border-collapse:collapse}
table.lines-edit th{font-size:12px;color:var(--muted);text-align:left;font-weight:600;padding:0 6px 6px}
table.lines-edit td{padding:4px 6px;vertical-align:top}
table.lines-edit input{padding:7px 8px}
table.lines-edit .col-qty{width:80px}
table.lines-edit .col-code{width:110px}
table.lines-edit .col-price{width:120px}
table.lines-edit .col-vat{width:90px}
table.lines-edit .col-disc{width:130px}
table.lines-edit .col-del{width:40px}

dl.meta{display:grid;grid-template-columns:max-content 1fr;gap:8px 18px;margin:0;font-size:14px}
dl.meta dt{color:var(--muted)}
dl.meta dd{margin:0;font-weight:500}

.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.totbar{display:flex;justify-content:flex-end;gap:26px;padding:12px 4px;font-size:15px}
.totbar div{text-align:right}
.totbar .k{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.totbar .v{font-weight:700;font-variant-numeric:tabular-nums}
.totbar .grand .v{font-size:22px}

.empty{padding:40px 16px;text-align:center;color:var(--muted)}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
pre.payload{background:#0f1720;color:#d7e3ee;padding:14px;border-radius:9px;overflow:auto;max-height:420px;font-size:12px}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:end;margin-bottom:14px}
.filters .field{min-width:150px}
.filters label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}

@media (max-width:720px){
  .grid2,.grid3,.grid4{grid-template-columns:1fr}
  table.list th:nth-child(4),table.list td:nth-child(4){display:none}
  h1{font-size:21px}
}