:root{
  --dark:#811c21; --accent:#9d3035; --pale:#f4e5e5; --paler:#fcf7f7; --line:#dfbfc1;
  --ink:#4b1518; --muted:#7d4b4f; --green:#176b37; --red:#b42318; --amber:#8a5a00;
  --radius:12px; --shadow:0 3px 12px #6a171c18;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paler);color:var(--ink);font:14px/1.5 -apple-system,Arial,sans-serif}
header.topbar{background:linear-gradient(135deg,var(--dark),var(--accent));color:#fff;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
header.topbar h1{font-size:18px;margin:0}
header.topbar nav{display:flex;gap:6px;flex-wrap:wrap}
header.topbar nav button{background:#ffffff22;border:1px solid #ffffff44;color:#fff;border-radius:8px;padding:8px 12px;cursor:pointer;font-weight:600}
header.topbar nav button.active{background:#fff;color:var(--dark)}
header.topbar .logout{background:transparent;border:1px solid #ffffff66;color:#fff;border-radius:8px;padding:8px 12px;cursor:pointer}
main{max-width:1180px;margin:0 auto;padding:18px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.card .label{font-size:12px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.02em}
.card .value{font-size:22px;font-weight:800;color:var(--dark);margin-top:6px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px;box-shadow:var(--shadow)}
.panel h2{margin:0 0 12px;font-size:16px;color:var(--dark)}
.toolbar{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.toolbar input[type=search]{flex:1;min-width:200px}
input,select,textarea,button{font:inherit;padding:9px 11px;border:1px solid #cfa7aa;border-radius:9px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:3px solid #edd0d2;border-color:var(--accent)}
button{cursor:pointer}
button.primary{background:var(--accent);color:#fff;border:0;font-weight:700}
button.primary:hover{background:var(--dark)}
button.ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
button:disabled{opacity:.5;cursor:wait}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{padding:9px 8px;border-bottom:1px solid #f0dcdd;text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:700;font-size:11px;text-transform:uppercase}
tr:hover td{background:var(--paler)}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700}
.badge.high{background:#fde3e0;color:var(--red)}
.badge.normal{background:var(--pale);color:var(--dark)}
.badge.done{background:#e3f4e9;color:var(--green)}
button.small{padding:5px 9px;font-size:12px;border-radius:7px}
td.actions{display:flex;gap:6px;flex-wrap:wrap}
.money{font-variant-numeric:tabular-nums}
.money.debt{color:var(--red);font-weight:700}
.money.ok{color:var(--green)}

/* Modal Tạo/Sửa đơn — theo đúng bố cục ảnh gốc */
.modal-backdrop{position:fixed;inset:0;background:#2b0b0d66;display:flex;align-items:flex-start;justify-content:center;padding:24px 12px;overflow:auto;z-index:50}
.modal{background:#fff;border-radius:16px;max-width:720px;width:100%;box-shadow:0 20px 60px #2b0b0d40}
.modal-head{display:flex;justify-content:space-between;align-items:flex-start;padding:20px 24px 0}
.modal-head h2{margin:0;color:var(--dark);font-size:19px}
.modal-head p{margin:4px 0 0;color:var(--muted);font-size:13px}
.modal-head button{background:none;border:0;font-size:20px;color:var(--muted);cursor:pointer}
.modal-body{padding:16px 24px}
.field-group{border-top:1px solid #f0dcdd;padding-top:14px;margin-top:14px}
.field-group h3{margin:0 0 10px;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.field label{display:block;font-size:12px;font-weight:700;margin-bottom:5px}
.field label.required:after{content:' *';color:var(--red)}
.field input,.field select,.field textarea{width:100%}
.field.computed input{background:var(--pale);color:var(--dark);font-weight:700;border-style:dashed}
.field .hint{font-size:11px;color:var(--muted);margin-top:3px}
.field .error{font-size:11px;color:var(--red);margin-top:3px;display:none}
.field.has-error input,.field.has-error select{border-color:var(--red)}
.field.has-error .error{display:block}
.profit-banner{margin-top:16px;background:#e3f4e9;border:1px solid #bfe4cc;border-radius:10px;padding:12px 16px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--green)}
.profit-banner.negative{background:#fde3e0;border-color:#f3bdb6;color:var(--red)}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:16px 24px 22px}
.msg{padding:11px 14px;border-radius:9px;margin:12px 24px 0;font-size:13px}
.msg.err{background:#fff0ee;color:var(--red)}
.msg.ok{background:#e8f6ed;color:var(--green)}
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;max-width:360px;width:100%;box-shadow:var(--shadow);text-align:center}
.login-box h1{color:var(--dark);margin:0 0 4px}
.login-box p{color:var(--muted);margin:0 0 18px;font-size:13px}
.login-box input{width:100%;margin-bottom:10px}
.login-box button{width:100%}
.hide{display:none!important}
@media(max-width:680px){.grid3,.grid2{grid-template-columns:1fr}}