:root{--bg:#f4f6f8;--card:#fff;--ink:#111827;--muted:#6b7280;--line:#e5e7eb;--brand:#0f4c81;--brand-d:#0b3a63;--ok:#065f46;--okbg:#d1fae5;--err:#991b1b;--errbg:#fee2e2;--warn:#92400e}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 -apple-system,Segoe UI,Roboto,Arial,sans-serif}
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--brand);color:#fff;padding:10px 20px}
.topbar a{color:#fff;text-decoration:none}
.brand{font-weight:700}
.topbar nav a{margin-left:16px;opacity:.9}.topbar nav a:hover{opacity:1;text-decoration:underline}
.container{max-width:980px;margin:0 auto;padding:20px 16px 40px}
h1{font-size:22px;margin:8px 0 4px}h2{font-size:17px;margin:24px 0 8px}h3{margin:0 0 8px}
.muted{color:var(--muted);font-weight:400;font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin:8px 0}
.card.narrow{max-width:420px;margin:48px auto}.narrow-left{max-width:420px}
label{display:block;font-size:13px;color:#374151;margin:0 0 12px}
label.check{display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--ink)}
input,select,textarea{display:block;width:100%;margin-top:4px;padding:8px 10px;border:1px solid #cbd5e1;border-radius:6px;font:inherit;background:#fff}
input[type=checkbox],input[type=radio]{display:inline-block;width:auto;margin:3px 0 0}
input:focus,select:focus,textarea:focus{outline:2px solid #93c5fd;border-color:#60a5fa}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:0 14px}
.grid .span2{grid-column:span 2}
.r{text-align:right}input.r{text-align:right}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:6px;padding:9px 16px;font:inherit;cursor:pointer;text-decoration:none;margin:4px 6px 4px 0}
.btn:hover{background:var(--brand-d)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}.btn-ghost:hover{background:#eff6ff}
.btn-danger{background:#fff;color:var(--err);border:1px solid var(--err)}.btn-danger:hover{background:var(--errbg)}
.btn-x{background:none;border:0;color:var(--err);font-size:20px;cursor:pointer;line-height:1}
.inline-form{display:inline}
.actions{margin:12px 0}
.alert{padding:10px 14px;border-radius:8px;margin:10px 0}.alert-ok{background:var(--okbg);color:var(--ok)}.alert-err{background:var(--errbg);color:var(--err)}
.hint{font-size:13px;color:var(--muted);margin:8px 0}
.tbl{width:100%;border-collapse:collapse}
.tbl th,.tbl td{padding:7px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.tbl th.r,.tbl td.r{text-align:right}
.tbl td input{margin:0}
.tbl thead th{font-size:12px;text-transform:uppercase;color:var(--muted)}
.pill{padding:2px 10px;border-radius:999px;font-size:12px}.pill-final{background:var(--okbg);color:var(--ok)}.pill-draft{background:#fef3c7;color:var(--warn)}
.late{color:var(--err);font-weight:600}.soon{color:var(--warn);font-weight:600}
.totals{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}
.totals div{display:flex;flex-direction:column}.totals span{font-size:12px;color:var(--muted)}.totals strong{font-size:18px}
.totals .grand{grid-column:1/-1;border-top:2px solid var(--ink);padding-top:8px}.totals .grand strong{font-size:24px;color:var(--brand)}
.foot{max-width:980px;margin:0 auto;padding:0 16px 30px;font-size:12px;color:var(--muted)}
/* printable return */
.paper{background:#fff;border:1px solid #cbd5e1;padding:28px;margin:12px 0;max-width:820px}
.paper-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.paper-form{font-weight:700;color:var(--brand)}
.stamp{border:2px solid;padding:2px 10px;font-weight:700;letter-spacing:1px;transform:rotate(-4deg)}
.stamp.final{color:var(--ok)}.stamp.draft{color:var(--warn)}
.kv{width:100%;border-collapse:collapse;margin:12px 0 18px;font-size:14px}
.kv th{text-align:left;color:var(--muted);font-weight:500;width:18%;padding:5px 6px;border-bottom:1px solid var(--line)}
.kv td{padding:5px 6px;border-bottom:1px solid var(--line);width:32%}
.calc tr.sub td{font-weight:600;background:#f9fafb}
.calc tr.grand td{font-weight:700;font-size:17px;border-top:2px solid var(--ink);border-bottom:2px solid var(--ink)}
.paper-foot{font-size:11px;color:var(--muted);margin-top:18px}
@media (max-width:640px){.grid .span2{grid-column:span 1}.tbl{font-size:13px}.paper{padding:16px}}
@media print{
  body{background:#fff}.no-print{display:none!important}
  .container{max-width:none;padding:0}.paper{border:0;padding:0;max-width:none}
}