:root{--bg:#f5f6f8;--card:#fff;--text:#172033;--muted:#667085;--border:#e4e7ec;--dark:#101828;}
*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}
.topbar{background:var(--dark);color:#fff;padding:14px 22px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.brand span{display:block;font-size:12px;color:#cbd5e1;margin-top:2px}nav a{color:#fff;text-decoration:none;margin-left:16px;font-size:14px}.container{max-width:1180px;margin:24px auto;padding:0 16px}.footer{text-align:center;color:var(--muted);font-size:12px;padding:24px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px;margin-bottom:18px;box-shadow:0 1px 2px rgba(16,24,40,.04)}h1,h2{margin:0 0 16px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat{padding:18px;border-radius:12px;background:#fff;border:1px solid var(--border)}.stat b{font-size:28px;display:block}.stat span{color:var(--muted)}
label{display:block;font-weight:700;margin:12px 0 6px}input,select,textarea{width:100%;padding:11px;border:1px solid var(--border);border-radius:8px;font-size:15px;background:#fff}textarea{min-height:100px}.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.btn{display:inline-block;background:#111827;color:#fff;border:0;border-radius:8px;padding:11px 15px;text-decoration:none;cursor:pointer;font-size:14px}.btn.secondary{background:#475467}.btn.light{background:#eef2f7;color:#111827}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}th{background:#f8fafc}.badge{display:inline-block;padding:5px 8px;border-radius:999px;font-size:12px;background:#eef2f7}.paid{background:#dcfce7}.unpaid{background:#fee2e2}.warning{background:#fef3c7}.error{background:#fee2e2;color:#7f1d1d;padding:10px;border-radius:8px}.success{background:#dcfce7;color:#14532d;padding:10px;border-radius:8px}.search{display:flex;gap:10px;margin-bottom:14px}.search input{max-width:420px}
.print-box{max-width:420px;border:2px solid #111;padding:18px;background:#fff}.print-box h2{font-size:20px;margin-bottom:4px}.print-line{border-top:1px solid #111;padding:8px 0;font-size:15px}.small{font-size:12px;color:var(--muted)}
@media(max-width:800px){.grid,.row{grid-template-columns:1fr}nav a{margin-left:8px}.search{display:block}.search .btn{margin-top:8px}th:nth-child(4),td:nth-child(4){display:none}}
@media print{.topbar,.footer,.actions,.no-print{display:none}.container{margin:0;max-width:none}.card{box-shadow:none;border:0}.print-box{page-break-inside:avoid}}