/* Giao diện app quản lý Textlink — viết tay, không cần build */
:root{
  --bg:#f4f6f9; --card:#fff; --ink:#16202c; --ink2:#5a6a7d; --line:#e2e8f0;
  --brand:#2563eb; --brand-dark:#1d4ed8; --ok:#0f9d58; --warn:#c77700; --danger:#d93636;
  --ok-bg:#e6f6ec; --warn-bg:#fdf3e0; --danger-bg:#fdeaea; --wait-bg:#eef2f7;
  --radius:10px; --shadow:0 1px 2px rgba(16,32,52,.06),0 4px 14px rgba(16,32,52,.05);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--ink);
  font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.muted{color:var(--ink2)}
.small{font-size:12px}
.right{text-align:right}
.center{text-align:center}
.nowrap{white-space:nowrap}
.mono{font-variant-numeric:tabular-nums}

/* ---------- Topbar ---------- */
.topbar{
  display:flex;align-items:center;gap:20px;
  background:#fff;border-bottom:1px solid var(--line);
  padding:0 20px;height:56px;position:sticky;top:0;z-index:20;
}
.brand{font-weight:700;font-size:16px;color:var(--ink);text-decoration:none}
.brand:hover{text-decoration:none}
.nav{display:flex;gap:2px;flex:1;flex-wrap:wrap}
.nav a{
  padding:7px 12px;border-radius:8px;color:var(--ink2);font-weight:500;text-decoration:none;
}
.nav a:hover{background:#f1f5f9;color:var(--ink);text-decoration:none}
.nav a.on{background:#e8efff;color:var(--brand-dark)}
.topbar-right{display:flex;align-items:center;gap:10px}
.who{color:var(--ink2);font-size:13px}
.inline{display:inline}

/* ---------- Layout ---------- */
.page{max-width:1360px;margin:0 auto;padding:22px 20px 60px}
.page-bare{max-width:400px;padding-top:70px}
h1{font-size:22px;margin:0 0 4px}
h2{font-size:16px;margin:0 0 12px}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.page-head .sub{color:var(--ink2);font-size:13px}

/* ---------- Card ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px}
.card-head{padding:13px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.card-head h2{margin:0}
.card-body{padding:16px}
.card-body.tight{padding:0}

/* ---------- Thẻ số ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin-bottom:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}
.stat .label{color:var(--ink2);font-size:12px;text-transform:uppercase;letter-spacing:.4px;margin-bottom:6px}
.stat .value{font-size:24px;font-weight:700;font-variant-numeric:tabular-nums}
.stat .unit{font-size:13px;font-weight:500;color:var(--ink2);margin-left:3px}
.stat .hint{color:var(--ink2);font-size:12px;margin-top:4px}
.stat.good .value{color:var(--ok)}
.stat.bad .value{color:var(--danger)}

/* ---------- Bảng ---------- */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:#f8fafc;font-size:12px;text-transform:uppercase;letter-spacing:.3px;color:var(--ink2);font-weight:600;white-space:nowrap}
tbody tr:hover{background:#fafcff}
tr.order-row td{background:#fbfcfe;font-weight:500}
tr.order-row:hover td{background:#f4f8ff}
tr.item-row td{font-size:13px;color:var(--ink2)}
tr.item-row td.strong{color:var(--ink)}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.table-empty{padding:40px 16px;text-align:center;color:var(--ink2)}

/* ---------- Badge ---------- */
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge-ok{background:var(--ok-bg);color:var(--ok)}
.badge-warn{background:var(--warn-bg);color:var(--warn)}
.badge-danger{background:var(--danger-bg);color:var(--danger)}
.badge-wait{background:var(--wait-bg);color:var(--ink2)}
.badge-info{background:#e8efff;color:var(--brand-dark)}

/* ---------- Nút ---------- */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:8px;border:1px solid transparent;
  background:var(--brand);color:#fff;font-size:14px;font-weight:500;cursor:pointer;
  text-decoration:none;line-height:1.2;
}
.btn:hover{background:var(--brand-dark);text-decoration:none;color:#fff}
.btn-sm{padding:5px 10px;font-size:13px}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:#f1f5f9;color:var(--ink)}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#b52d2d}
.btn-link{background:none;border:none;color:var(--brand);padding:0;cursor:pointer;font-size:13px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ---------- Form ---------- */
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:5px}
.field .help{color:var(--ink2);font-size:12px;margin-top:4px}
input[type=text],input[type=password],input[type=date],input[type=number],input[type=search],select,textarea{
  width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;
  font:inherit;background:#fff;color:var(--ink);
}
input:focus,select:focus,textarea:focus{outline:2px solid #bfd4ff;outline-offset:-1px;border-color:var(--brand)}
input[readonly]{background:#f8fafc;color:var(--ink2)}
textarea{min-height:70px;resize:vertical}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.checkline{display:flex;align-items:center;gap:7px;font-size:13px}
.checkline input{width:auto}

/* ---------- Bộ lọc ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.filters .field{margin:0;min-width:140px}
.filters .field.grow{flex:1;min-width:200px}

/* ---------- Flash ---------- */
.flash{padding:11px 14px;border-radius:8px;margin-bottom:16px;font-weight:500}
.flash-ok{background:var(--ok-bg);color:#0b6b3d;border:1px solid #b7e3c8}
.flash-err{background:var(--danger-bg);color:#9b1c1c;border:1px solid #f3c0c0}
.flash-warn{background:var(--warn-bg);color:#8a5300;border:1px solid #f0d6a3}

/* ---------- Cảnh báo lệch số ---------- */
.alert-list{list-style:none;margin:0;padding:0}
.alert-list li{
  padding:10px 12px;border-left:3px solid var(--warn);background:var(--warn-bg);
  border-radius:0 8px 8px 0;margin-bottom:8px;font-size:13px;
}
.alert-list li.err{border-left-color:var(--danger);background:var(--danger-bg)}

/* ---------- Dòng site trong form đơn ---------- */
.items-table td{padding:6px 6px}
.items-table th{padding:8px 6px;position:static}
.items-table input,.items-table select{padding:6px 8px;font-size:13px}
.items-table .col-x{width:34px}
.items-table .del{color:var(--danger);cursor:pointer;background:none;border:none;font-size:18px;line-height:1;padding:2px 6px}

/* ---------- Login ---------- */
.login-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:var(--shadow)}
.login-card h1{text-align:center;margin-bottom:6px}
.login-card .sub{text-align:center;color:var(--ink2);margin-bottom:22px;font-size:13px}
.login-card .btn{width:100%;justify-content:center;padding:10px}

/* ---------- Biểu đồ cột ---------- */
.bars{display:flex;align-items:flex-end;gap:10px;height:170px;padding:10px 4px 0}
.bars .bar{flex:1;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;gap:5px;min-width:34px}
.bars .bar .fill{width:100%;background:var(--brand);border-radius:5px 5px 0 0;min-height:3px;transition:height .2s}
.bars .bar .fill.neg{background:var(--danger)}
.bars .bar .cap{font-size:11px;color:var(--ink2);white-space:nowrap}
.bars .bar .val{font-size:11px;font-weight:600;font-variant-numeric:tabular-nums}

@media (max-width:820px){
  .topbar{height:auto;flex-wrap:wrap;padding:10px 14px;gap:10px}

  .grid2,.grid3,.grid4{grid-template-columns:1fr}
  .page{padding:16px 12px 50px}
}