:root{
    --ink:#1E1B15; --soft:#6E6759; --faint:#A8A092; --line:rgba(0,0,0,0.10);
    --badge:#C7A24C; --badge-ink:#211705; --green:#2E7D46; --red:#B3261E; --bg:#F7F5F0; --card:#fff;
  }
  *{box-sizing:border-box;}
  body{margin:0; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; background:var(--bg); color:var(--ink);}
  button{font-family:inherit; cursor:pointer;}
  input,select,textarea{font-family:inherit;}
  a{color:inherit;}

  /* login screen */
  #loginScreen{min-height:100vh; display:flex; align-items:center; justify-content:center; padding:20px;}
  .login-box{width:100%; max-width:360px; background:var(--card); border-radius:16px; padding:28px; box-shadow:0 8px 30px rgba(0,0,0,0.12);}
  .login-box h1{font-size:1.2rem; margin:0 0 4px;}
  .login-box p{color:var(--soft); font-size:0.85rem; margin:0 0 20px;}
  .field{margin-bottom:14px;}
  .field label{display:block; font-size:0.76rem; font-weight:700; color:var(--soft); margin-bottom:5px; text-transform:uppercase;}
  .field input, .field select, .field textarea{width:100%; padding:11px 12px; border-radius:9px; border:1px solid var(--line); font-size:0.9rem;}
  .btn{background:var(--ink); color:#fff; border:none; border-radius:9px; padding:11px 16px; font-weight:700; font-size:0.88rem;}
  .btn.primary{background:var(--badge); color:var(--badge-ink);}
  .btn.danger{background:var(--red); color:#fff;}
  .btn.ghost{background:transparent; border:1px solid var(--line); color:var(--ink);}
  .btn:disabled{opacity:0.5; cursor:not-allowed;}
  .err{color:var(--red); font-size:0.82rem; margin-top:10px;}
  .ok{color:var(--green); font-size:0.82rem; margin-top:10px;}

  /* app shell */
  #app{display:none; min-height:100vh;}
  .topbar{display:flex; align-items:center; justify-content:space-between; padding:14px 20px; background:var(--ink); color:#fff;}
  .topbar .brand{font-weight:800; font-size:1rem;}
  .topbar .who{font-size:0.8rem; color:#D8D2C4;}
  .topbar button{background:none; border:1px solid rgba(255,255,255,0.3); color:#fff; padding:6px 12px; border-radius:8px; font-size:0.8rem;}
  .tabs{display:flex; gap:4px; padding:10px 16px; background:var(--card); border-bottom:1px solid var(--line); overflow-x:auto;}
  .tabs button{background:none; border:none; padding:9px 14px; border-radius:8px; font-weight:700; font-size:0.84rem; color:var(--soft); white-space:nowrap;}
  .tabs button.active{background:var(--badge); color:var(--badge-ink);}
  .content{padding:20px; max-width:1100px; margin:0 auto;}

  .grid-cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(150px,1fr)); gap:12px; margin-bottom:22px;}
  .metric-card{background:var(--card); border-radius:14px; padding:16px; box-shadow:0 2px 10px rgba(0,0,0,0.06);}
  .metric-card .label{font-size:0.72rem; text-transform:uppercase; color:var(--soft); font-weight:700;}
  .metric-card .value{font-size:1.5rem; font-weight:800; margin-top:4px;}

  table{width:100%; border-collapse:collapse; background:var(--card); border-radius:12px; overflow:hidden; box-shadow:0 2px 10px rgba(0,0,0,0.06);}
  th,td{padding:10px 12px; text-align:left; font-size:0.82rem; border-bottom:1px solid var(--line);}
  th{background:#FAF8F3; text-transform:uppercase; font-size:0.68rem; color:var(--soft); font-weight:800;}
  tr:last-child td{border-bottom:none;}
  .thumb-sm{width:40px; height:40px; border-radius:8px; object-fit:cover; vertical-align:middle;}

  .toolbar{display:flex; gap:10px; flex-wrap:wrap; align-items:center; margin-bottom:14px;}
  .toolbar select, .toolbar input{padding:8px 10px; border-radius:8px; border:1px solid var(--line); font-size:0.82rem;}

  .badge-pill{padding:3px 9px; border-radius:20px; font-size:0.68rem; font-weight:800; text-transform:uppercase;}
  .p-pending{background:#FBF0D9; color:#8A5B00;}
  .p-paid{background:#DFF2E4; color:var(--green);}
  .p-failed,.p-cancelled{background:#FBDEDC; color:var(--red);}
  .p-cash_on_delivery{background:#E7E2D6; color:#5A5140;}

  .modal-overlay{position:fixed; inset:0; background:rgba(0,0,0,0.5); display:none; align-items:center; justify-content:center; z-index:100; padding:16px;}
  .modal-overlay.show{display:flex;}
  .modal{background:#fff; border-radius:14px; padding:22px; width:100%; max-width:480px; max-height:90vh; overflow-y:auto;}
  .modal h2{margin-top:0; font-size:1.05rem;}
  .modal-actions{display:flex; gap:10px; justify-content:flex-end; margin-top:16px;}
  .form-grid2{display:grid; grid-template-columns:1fr 1fr; gap:10px;}
  .section-title{font-size:0.95rem; font-weight:800; margin:26px 0 10px;}
  .hint{font-size:0.76rem; color:var(--soft); margin-top:4px;}
  .settings-group{background:var(--card); border-radius:14px; padding:18px; margin-bottom:16px; box-shadow:0 2px 10px rgba(0,0,0,0.06);}