*{margin:0;padding:0;box-sizing:border-box}
  :root{
    --black:#0a0a0a;
    --white:#ffffff;
    --red:#e8231a;
    --red-dark:#b51a13;
    --gray-100:#f5f5f5;
    --gray-200:#e8e8e8;
    --gray-300:#d0d0d0;
    --gray-400:#a0a0a0;
    --gray-500:#6b6b6b;
    --gray-600:#4a4a4a;
    --gray-700:#2e2e2e;
    --sidebar-w:240px;
    --header-h:64px;
  }
  body{font-family:'DM Sans',sans-serif;background:var(--gray-100);color:var(--black);min-height:100vh}
  h1,h2,h3,h4,h5{font-family:'Syne',sans-serif}

  /* AUTH */
  #auth-screen{
    position:fixed;inset:0;background:var(--black);
    display:flex;align-items:center;justify-content:center;z-index:1000;
    background-image:repeating-linear-gradient(0deg,transparent,transparent 39px,rgba(255,255,255,.03) 39px,rgba(255,255,255,.03) 40px),
      repeating-linear-gradient(90deg,transparent,transparent 39px,rgba(255,255,255,.03) 39px,rgba(255,255,255,.03) 40px);
  }
  .auth-card{
    background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
    border-radius:16px;padding:48px 40px;width:420px;
    backdrop-filter:blur(20px);
  }
  .auth-logo{text-align:center;margin-bottom:32px}
  .auth-logo img{height:100px;filter:brightness(10)}
  .auth-title{font-family:'Syne',sans-serif;font-size:22px;font-weight:700;color:#fff;text-align:center;margin-bottom:4px}
  .auth-sub{font-size:13px;color:rgba(255,255,255,.5);text-align:center;margin-bottom:32px}
  .auth-label{font-size:12px;font-weight:500;color:rgba(255,255,255,.6);text-transform:uppercase;letter-spacing:.06em;display:block;margin-bottom:6px}
  .auth-input{
    width:100%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
    border-radius:8px;padding:12px 14px;color:#fff;font-family:'DM Sans',sans-serif;font-size:14px;
    outline:none;transition:border .2s;
  }
  .auth-input:focus{border-color:var(--red)}
  .auth-input::placeholder{color:rgba(255,255,255,.3)}
  .auth-group{margin-bottom:20px}
  .auth-btn{
    width:100%;background:var(--red);border:none;border-radius:8px;
    padding:14px;color:#fff;font-family:'Syne',sans-serif;font-size:15px;font-weight:700;
    cursor:pointer;transition:background .2s;letter-spacing:.02em;margin-top:8px;
  }
  .auth-btn:hover{background:var(--red-dark)}
  .auth-hint{font-size:12px;color:rgba(255,255,255,.3);text-align:center;margin-top:20px}

  /* APP SHELL */
  #app-screen{display:none;min-height:100vh}
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
    background:var(--black);display:flex;flex-direction:column;z-index:100;
  }
  .sidebar-logo{padding:20px 20px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
  .sidebar-logo img{height:36px;filter:brightness(10)}
  .sidebar-nav{flex:1;padding:16px 0;overflow-y:auto}
  .nav-section{font-size:10px;font-weight:700;color:rgba(255,255,255,.3);
    text-transform:uppercase;letter-spacing:.1em;padding:8px 20px 4px}
  .nav-item{
    display:flex;align-items:center;gap:10px;padding:10px 20px;
    color:rgba(255,255,255,.55);font-size:13.5px;font-weight:500;
    cursor:pointer;transition:all .15s;border-left:3px solid transparent;
    text-decoration:none;
  }
  .nav-item:hover{color:#fff;background:rgba(255,255,255,.05)}
  .nav-item.active{color:#fff;background:rgba(232,35,26,.12);border-left-color:var(--red)}
  .nav-item i{width:18px;font-size:15px}
  .sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08)}
  .user-row{display:flex;align-items:center;gap:10px}
  .user-avatar{width:34px;height:34px;border-radius:50%;background:var(--red);
    display:flex;align-items:center;justify-content:center;font-family:'Syne',sans-serif;
    font-size:13px;font-weight:700;color:#fff;flex-shrink:0}
  .user-name{font-size:13px;font-weight:500;color:#fff}
  .user-role{font-size:11px;color:rgba(255,255,255,.4)}
  .logout-btn{margin-left:auto;background:none;border:none;color:rgba(255,255,255,.4);cursor:pointer;font-size:15px;transition:color .2s}
  .logout-btn:hover{color:var(--red)}

  /* MAIN */
  .main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
  .topbar{
    height:var(--header-h);background:#fff;border-bottom:1px solid var(--gray-200);
    display:flex;align-items:center;padding:0 28px;gap:16px;
    position:sticky;top:0;z-index:50;
  }
  .page-title{font-family:'Syne',sans-serif;font-size:18px;font-weight:700;flex:1}
  .topbar-search{
    display:flex;align-items:center;gap:8px;background:var(--gray-100);
    border:1px solid var(--gray-200);border-radius:8px;padding:8px 12px;
    font-size:13px;color:var(--gray-500);cursor:text;
  }
  .topbar-btn{
    width:36px;height:36px;border-radius:8px;border:1px solid var(--gray-200);
    background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;
    color:var(--gray-500);font-size:15px;transition:all .15s;
  }
  .topbar-btn:hover{background:var(--gray-100);color:var(--black)}
  .badge-dot{position:relative}
  .badge-dot::after{content:'';position:absolute;top:6px;right:6px;width:7px;height:7px;
    background:var(--red);border-radius:50%;border:2px solid #fff}
  .content{flex:1;padding:28px}

  /* PAGES */
  /* .page{display:none} */
  .page.active{display:block}

  /* STATS GRID */
  .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
  .stat-card{background:#fff;border-radius:12px;padding:20px;border:1px solid var(--gray-200)}
  .stat-label{font-size:12px;font-weight:500;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
  .stat-value{font-family:'Syne',sans-serif;font-size:28px;font-weight:800;color:var(--black);line-height:1}
  .stat-change{font-size:12px;margin-top:6px;display:flex;align-items:center;gap:4px}
  .stat-change.up{color:#16a34a}
  .stat-change.down{color:var(--red)}
  .stat-icon{float:right;width:40px;height:40px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;font-size:18px}
  .icon-blue{background:#eff6ff;color:#3b82f6}
  .icon-red{background:#fef2f2;color:var(--red)}
  .icon-green{background:#f0fdf4;color:#16a34a}
  .icon-amber{background:#fffbeb;color:#d97706}

  /* TABLE */
  .card{background:#fff;border-radius:12px;border:1px solid var(--gray-200)}
  .card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--gray-200)}
  .card-title{font-family:'Syne',sans-serif;font-size:15px;font-weight:700}
  .card-actions{display:flex;gap:8px}
  table{width:100%;border-collapse:collapse}
  thead th{
    font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;
    color:var(--gray-500);padding:12px 20px;text-align:left;border-bottom:1px solid var(--gray-200);
    background:var(--gray-100);
  }
  tbody tr{border-bottom:1px solid var(--gray-200);transition:background .1s}
  tbody tr:last-child{border-bottom:none}
  tbody tr:hover{background:var(--gray-100)}
  td{padding:13px 20px;font-size:13.5px;color:var(--gray-600)}
  td strong{color:var(--black);font-weight:500}
  .badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600}
  .badge-success{background:#dcfce7;color:#15803d}
  .badge-warning{background:#fef9c3;color:#a16207}
  .badge-danger{background:#fee2e2;color:#b91c1c}
  .badge-info{background:#dbeafe;color:#1d4ed8}
  .badge-gray{background:#f3f4f6;color:#4b5563}

  /* BUTTONS */
  .btn{
    display:inline-flex;align-items:center;gap:6px;padding:9px 16px;
    border-radius:8px;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:500;
    cursor:pointer;transition:all .15s;border:none;
  }
  .btn-primary{background:var(--black);color:#fff}
  .btn-primary:hover{background:var(--gray-700)}
  .btn-danger{background:var(--red);color:#fff}
  .btn-danger:hover{background:var(--red-dark)}
  .btn-outline{background:#fff;color:var(--black);border:1px solid var(--gray-300)}
  .btn-outline:hover{background:var(--gray-100)}
  .btn-sm{padding:6px 12px;font-size:12px}
  .btn-icon{padding:6px 8px;background:#fff;border:1px solid var(--gray-200);color:var(--gray-500);border-radius:6px;cursor:pointer;font-size:13px;transition:all .15s}
  .btn-icon:hover{color:var(--black);border-color:var(--gray-400)}
  .btn-icon.red:hover{color:var(--red);border-color:var(--red)}

  /* FORMS */
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .form-group{margin-bottom:16px}
  .form-label{display:block;font-size:12px;font-weight:500;color:var(--gray-600);margin-bottom:5px;text-transform:uppercase;letter-spacing:.04em}
  .form-control{
    width:100%;border:1px solid var(--gray-300);border-radius:8px;
    padding:10px 12px;font-family:'DM Sans',sans-serif;font-size:14px;
    color:var(--black);outline:none;transition:border .2s;background:#fff;
  }
  .form-control:focus{border-color:var(--black)}
  select.form-control{cursor:pointer}

  /* MODAL */
  .modal-backdrop{
    position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:200;
    display:none;align-items:center;justify-content:center;
  }
  .modal-backdrop.open{display:flex}
  .modal{background:#fff;border-radius:16px;width:560px;max-height:90vh;overflow-y:auto;padding:28px}
  .modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
  .modal-title{font-family:'Syne',sans-serif;font-size:18px;font-weight:700}
  .modal-close{background:none;border:none;font-size:20px;color:var(--gray-400);cursor:pointer;transition:color .15s}
  .modal-close:hover{color:var(--black)}
  .modal-footer{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--gray-200)}

  /* CHART BARS */
  .chart-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}
  .chart-label{font-size:12px;color:var(--gray-500);width:90px;text-align:right;flex-shrink:0}
  .chart-bar-bg{flex:1;height:8px;background:var(--gray-100);border-radius:4px;overflow:hidden}
  .chart-bar-fill{height:100%;border-radius:4px;background:var(--black);transition:width .6s ease}
  .chart-val{font-size:12px;font-weight:600;width:50px;text-align:right;flex-shrink:0}

  /* REPORT CARDS */
  .report-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
  .report-card{background:#fff;border:1px solid var(--gray-200);border-radius:12px;padding:20px;cursor:pointer;transition:all .2s}
  .report-card:hover{border-color:var(--black);transform:translateY(-2px)}
  .report-card-icon{width:44px;height:44px;border-radius:10px;background:var(--black);
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;margin-bottom:12px}
  .report-card-title{font-family:'Syne',sans-serif;font-size:14px;font-weight:700;margin-bottom:4px}
  .report-card-desc{font-size:12px;color:var(--gray-500);line-height:1.5}

  /* ALERT */
  .alert{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;border-radius:8px;margin-bottom:12px;font-size:13px}
  .alert-warning{background:#fffbeb;border:1px solid #fde68a;color:#92400e}
  .alert-danger{background:#fef2f2;border:1px solid #fecaca;color:#991b1b}

  /* MISC */
  .section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .section-title{font-family:'Syne',sans-serif;font-size:16px;font-weight:700}
  .two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .text-muted{color:var(--gray-400);font-size:13px}
  .mt-16{margin-top:16px}
  .mb-16{margin-bottom:16px}
  .pill{display:inline-block;padding:2px 8px;border-radius:20px;font-size:11px;background:var(--gray-100);color:var(--gray-600)}
  .divider{border:none;border-top:1px solid var(--gray-200);margin:16px 0}
  .progress{height:6px;background:var(--gray-200);border-radius:3px;overflow:hidden}
  .progress-fill{height:100%;border-radius:3px}
  .toast{
    position:fixed;bottom:24px;right:24px;background:var(--black);color:#fff;
    padding:12px 20px;border-radius:10px;font-size:13px;font-weight:500;
    transform:translateY(80px);opacity:0;transition:all .3s;z-index:500;
    display:flex;align-items:center;gap:8px;
  }
  .toast.show{transform:translateY(0);opacity:1}
  .tabs{display:flex;gap:4px;background:var(--gray-100);border-radius:8px;padding:4px;margin-bottom:20px}
  .tab{padding:7px 16px;border-radius:6px;font-size:13px;font-weight:500;cursor:pointer;color:var(--gray-500);transition:all .15s}
  .tab.active{background:#fff;color:var(--black);box-shadow:0 1px 3px rgba(0,0,0,.1)}

  @media(max-width:900px){
    .stats-grid{grid-template-columns:1fr 1fr}
    .report-grid{grid-template-columns:1fr 1fr}
    .two-col{grid-template-columns:1fr}
  }

  footer {
    text-align: center;
    padding: 20px;
    background: #0a0a0a;
    color: white;
}