:root{
    --primary:#004454;     /* deep teal */
    --accent:#40C3EA;      /* cyan */
    --warm:#F6A062;        /* orange */
    --danger:#F0765F;      /* coral */
  
    --bg:#F7FAFC;
    --panel:#FFFFFF;
    --panel2:#FBFDFF;
  
    --text:#0B1220;
    --muted:#6B7280;
  
    --line:rgba(15,23,42,.10);
    --shadow: 0 10px 30px rgba(2, 6, 23, .08);
  
    --r12:12px;
    --r16:16px;
    --r20:20px;
  }
  
  *{box-sizing:border-box}
  html,body{height:100%}
  body{
    margin:0;
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color:var(--text);
    background:
      radial-gradient(900px 520px at 12% 0%, rgba(64,195,234,.18), transparent 60%),
      radial-gradient(900px 520px at 95% 10%, rgba(240,118,95,.14), transparent 55%),
      radial-gradient(900px 520px at 70% 100%, rgba(246,160,98,.12), transparent 55%),
      linear-gradient(180deg, #F8FBFF, var(--bg));
  }
  
  /* App layout */
  .wrap{
    max-width: 1280px;
    margin: 20px auto;
    padding: 0 16px 30px;
  }
  
  .app{
    display:grid;
    grid-template-columns: 260px 1fr;
    gap:16px;
    align-items:start;
  }
  @media (max-width: 980px){
    .app{ grid-template-columns: 1fr; }
  }
  
  /* Sidebar */
  .sidebar{
    position:sticky;
    top:18px;
    background: rgba(255,255,255,.75);
    border:1px solid var(--line);
    border-radius: var(--r20);
    box-shadow: var(--shadow);
    padding:14px;
    backdrop-filter: blur(12px);
  }
  
  .sidebar .brand{
    display:flex;
    gap:10px;
    align-items:center;
    padding:10px 10px 14px;
    border-bottom:1px solid rgba(15,23,42,.08);
    margin-bottom:12px;
  }
  
  .logoMark{
    width:36px;height:36px;border-radius:12px;
    background: linear-gradient(135deg, var(--primary), #0a6d7d);
    box-shadow: 0 10px 18px rgba(0,68,84,.18);
    position:relative;
  }
  .logoMark:after{
    content:"";
    position:absolute; inset:9px;
    border-radius:10px;
    border:2px solid rgba(255,255,255,.55);
  }
  
  .brandText{
    display:flex; flex-direction:column; gap:2px;
  }
  .brandTitle{
    font-weight:900;
    letter-spacing:-.2px;
    color:var(--primary);
    font-size:14px;
  }
  .brandSub{
    font-weight:700;
    color:var(--muted);
    font-size:12px;
  }
  
  .nav{
    display:flex;
    flex-direction:column;
    gap:8px;
  }
  .nav a{
    text-decoration:none;
    font-weight:850;
    font-size:13px;
    color: rgba(0,68,84,.78);
    padding:10px 12px;
    border-radius: 12px;
    border:1px solid rgba(15,23,42,.08);
    background: rgba(255,255,255,.70);
    transition: .18s ease;
  }
  .nav a:hover{
    transform: translateY(-1px);
    background: rgba(255,255,255,.95);
  }
  .nav a.active{
    background: linear-gradient(135deg, rgba(0,68,84,.14), rgba(64,195,234,.16));
    border-color: rgba(64,195,234,.35);
    color: var(--primary);
  }
  
  /* Content area */
  .content{
    min-width:0;
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  
  /* Top header card */
  .header{
    background: rgba(255,255,255,.78);
    border:1px solid var(--line);
    border-radius: var(--r20);
    box-shadow: var(--shadow);
    padding:16px 16px;
    backdrop-filter: blur(12px);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
  }
  .header h1{
    margin:0;
    font-size:16px;
    letter-spacing:-.2px;
  }
  .header .hint{
    margin:2px 0 0;
    color:var(--muted);
    font-size:12px;
    font-weight:650;
  }
  
  .actions{
    display:flex; gap:10px; flex-wrap:wrap;
  }
  
  /* Cards */
  .card{
    background: rgba(255,255,255,.84);
    border:1px solid var(--line);
    border-radius: var(--r20);
    box-shadow: var(--shadow);
    padding:16px;
    backdrop-filter: blur(10px);
  }
  .cardTitle{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
  }
  .cardTitle h2{
    margin:0;
    font-size:14px;
    letter-spacing:-.2px;
  }
  .muted{ color:var(--muted); font-size:12px; font-weight:650; }
  
  /* Buttons */
  .btn{
    appearance:none;
    border:1px solid rgba(15,23,42,.12);
    background: rgba(255,255,255,.82);
    color: var(--text);
    padding:10px 12px;
    border-radius: 12px;
    font-weight:900;
    font-size:12px;
    cursor:pointer;
    transition:.18s ease;
  }
  .btn:hover{ transform: translateY(-1px); background:#fff; }
  .btn:active{ transform: translateY(0px); }
  
  .btn.primary{
    border-color: transparent;
    color:#fff;
    background: linear-gradient(135deg, var(--primary), #0b6a78);
  }
  .btn.accent{
    border-color: transparent;
    color:#00343d;
    background: linear-gradient(135deg, rgba(64,195,234,.95), #1aa6cf);
  }
  .btn.danger{
    border-color: transparent;
    color:#fff;
    background: linear-gradient(135deg, var(--danger), #ff5c49);
  }
  .btn.warm{
    border-color: transparent;
    color:#3a1c00;
    background: linear-gradient(135deg, var(--warm), #ff9a57);
  }
  
  /* File drop */
  .drop{
    display:flex;
    align-items:center;
    gap:10px;
    padding:12px;
    border-radius: var(--r16);
    border:1px dashed rgba(15,23,42,.18);
    background: rgba(251,253,255,.9);
  }
  .drop input[type="file"]{
    font-weight:700;
    font-size:12px;
    color: var(--muted);
  }
  
  /* Metrics */
  .metrics{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    margin-top:12px;
  }
  .metric{
    display:flex;
    align-items:center;
    gap:10px;
    padding:10px 12px;
    border-radius: 999px;
    border:1px solid rgba(15,23,42,.10);
    background: rgba(255,255,255,.78);
    font-size:12px;
    font-weight:900;
  }
  .pip{
    width:9px;height:9px;border-radius:50%;
    background: rgba(107,114,128,.9);
    box-shadow: 0 0 0 4px rgba(107,114,128,.12);
  }
  .metric.ready .pip{ background: var(--accent); box-shadow:0 0 0 4px rgba(64,195,234,.14); }
  .metric.ok .pip{ background:#10b981; box-shadow:0 0 0 4px rgba(16,185,129,.14); }
  .metric.fail .pip{ background: var(--danger); box-shadow:0 0 0 4px rgba(240,118,95,.16); }
  .metric.invalid .pip{ background: var(--warm); box-shadow:0 0 0 4px rgba(246,160,98,.16); }
  
  /* Table */
  .tablewrap{
    margin-top:12px;
    border-radius: var(--r16);
    overflow:auto;
    border:1px solid rgba(15,23,42,.10);
    background: rgba(255,255,255,.88);
  }
  table{
    width:100%;
    border-collapse:separate;
    border-spacing:0;
    font-size:12px;
  }
  thead th{
    position:sticky;
    top:0;
    z-index:2;
    background: rgba(251,253,255,.95);
    backdrop-filter: blur(10px);
    text-align:left;
    padding:12px 12px;
    border-bottom:1px solid rgba(15,23,42,.10);
    color: rgba(0,68,84,.85);
    font-weight:950;
    letter-spacing:.6px;
    font-size:11px;
    text-transform:uppercase;
  }
  tbody td{
    padding:12px 12px;
    border-bottom:1px solid rgba(15,23,42,.06);
    color: rgba(11,18,32,.92);
  }
  tbody tr:nth-child(even){ background: rgba(64,195,234,.035); }
  tbody tr:hover{ background: rgba(64,195,234,.10); }
  
  /* Badge */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:7px 10px;
    border-radius:999px;
    border:1px solid rgba(15,23,42,.10);
    background: rgba(255,255,255,.80);
    font-weight:950;
    font-size:11px;
  }
  .badge:before{
    content:"";
    width:8px;height:8px;border-radius:50%;
    background:#9ca3af;
  }
  .badge.ready{ color:#036a7f; }
  .badge.ready:before{ background: var(--accent); }
  
  .badge.ok{ color:#047857; }
  .badge.ok:before{ background:#10b981; }
  
  .badge.fail{ color:#b42318; }
  .badge.fail:before{ background: var(--danger); }
  
  .badge.invalid{ color:#a16207; }
  .badge.invalid:before{ background: var(--warm); }
  
  /* small helpers */
  hr.sep{
    border:0;
    border-top:1px solid rgba(15,23,42,.08);
    margin:12px 0;
  }