:root{
      --bg:#0f1724;
      --card:#0b1220;
      --muted:#9aa4b2;
      --accent:#6ee7b7;
      --glass: rgba(255,255,255,0.03);
      --success: #10b981;
      --danger: #f43f5e;
      --card-shadow: 0 6px 18px rgba(2,6,23,0.6);
    }

    *{
      box-sizing:border-box
    }

    html,body{
      height:100%;
    }

    body{
      margin:0;
      font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
      background: linear-gradient(180deg,#071126 0%, #081226 40%, #071021 100%);
      color:#e6eef6;
      -webkit-font-smoothing:antialiased;
      -moz-osx-font-smoothing:grayscale;
      padding:28px;
      direction:rtl;
    }

    .container{
      max-width:1100px;
      margin:0 auto;
    }

    header{
      display:flex;
      flex-direction: row;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-bottom:20px
    }

    .brand{
      display:flex;
      align-items:center;
      gap:12px
    }

    .logo{
      width:48px;
      height:48px;
      border-radius:12px;
      background:linear-gradient(135deg,var(--accent),#60a5fa);
      display:flex;
      align-items:center;
      justify-content:center;
      color:#04202a;
      font-weight:800
    }

    h1{
      font-size:20px;
      margin:0
    }

    p.lead{
      margin:0;
      color:var(--muted);
      font-size:13px
    }

    .card{
      background:linear-gradient(180deg,var(--card), rgba(8,12,20,0.6));
      border-radius:14px;
      padding:18px;
      box-shadow:var(--card-shadow);
    }

    .controls{
      display:grid;
      grid-template-columns:1fr 160px 120px;
      gap:12px;
      align-items:center
    }

    .input{
      background:var(--glass);
      padding:10px;
      border-radius:10px;
      border:1px solid rgba(255,255,255,0.03);
    }

    input[type=text]{
      background:transparent;
      border:0;
      width:100%;
      color:inherit;
      font-size:15px;
      outline:none
    }

    .small{
      font-size:12px;
      color:var(--muted)
      ;margin-top:6px
    }

    .row{
      display:flex;
      gap:12px
    }

    .btn{
      background:linear-gradient(90deg,#2dd4bf,#60a5fa);
      border:0;
      padding:10px 14px;
      border-radius:10px;
      color:#04202a;
      font-weight:700;
      cursor:pointer;
    }

    .btn.ghost{
      background:transparent;
      border:1px solid rgba(255,255,255,0.04);
      color:var(--accent)
    }

    .btn:active{
      transform:translateY(1px)
    }

    .grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
      margin-top:16px;
    }

    .stat{
      padding:14px;
      border-radius:12px;
      background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
    }

    .stat h3{
      margin:0;
      font-size:12px;
      color:var(--muted);
    }

    .stat p{
      margin:6px 0 0;
      font-size:16px;
      font-weight:700;
    }
    
    .stat .muted{
      font-size:12px;
      color:var(--muted);
      margin-top:8px;
    }

    footer{
      margin-top:18px;
      color:var(--muted);
      font-size:13px;
      display:flex;
      justify-content:space-between;
    }

    /* responsive */
    @media (max-width:880px){
      .controls{grid-template-columns:1fr 120px;}
      .grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:560px){
      body{padding:12px}
      .controls{grid-template-columns:1fr};
      .grid{grid-template-columns:1fr}
      header{align-items:center;gap:10px};
    }

    /* copy icon */
    .copy{
      display:inline-flex;
      align-items:center;
      gap:8px;
      cursor:pointer;
      color:var(--muted);
      font-size:12px;
    }

    .chip{
      display:inline-block;
      padding:6px 8px;
      border-radius:999px;
      background:rgba(255,255,255,0.02);
      font-size:12px;
    }

    .warning{
      color:var(--danger);
      font-weight:700;
    }

    .ok{
      color:var(--success);
      font-weight:700;
    }

    .hint{
      font-size:12px;
      color:var(--muted);
      margin-top:8px;
    }