*{
      margin:0;
      padding:0;
      box-sizing:border-box;
      font-family:Arial,sans-serif;
    }

    body{
      background:linear-gradient(135deg,#0f172a,#1e293b);
      padding:30px;
      min-height:100vh;
    }

    .container{
      max-width:1600px;
      margin:auto;
      background:white;
      border-radius:18px;
      overflow:hidden;
      box-shadow:0 10px 30px rgba(0,0,0,0.25);
    }

    .header{
      background:#0f172a;
      color:white;
      padding:30px;
      text-align:center;
    }

    .header h1{
      font-size:32px;
      margin-bottom:10px;
    }

    .header p{
      opacity:0.85;
    }

    form{
      padding:35px;
    }

    .section-title{
      margin:30px 0 15px;
      color:#0f172a;
      font-size:20px;
      border-left:5px solid #2563eb;
      padding-left:10px;
    }

    .grid{
      display:grid;
      grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
      gap:20px;
    }

    .field{
      display:flex;
      flex-direction:column;
    }

    label{
      font-weight:bold;
      margin-bottom:8px;
      color:#1e293b;
    }

    input,
    textarea{
      padding:12px;
      border:1px solid #cbd5e1;
      border-radius:10px;
      font-size:14px;
      transition:0.3s;
      width:100%;
    }

    textarea{
      resize:vertical;
      min-height:70px;
      line-height:1.5;
    }

    input:focus,
    textarea:focus{
      outline:none;
      border-color:#2563eb;
      box-shadow:0 0 0 3px rgba(37,99,235,0.2);
    }

    table{
      width:100%;
      border-collapse:collapse;
      margin-top:15px;
    }

    table th{
      background:#2563eb;
      color:white;
      padding:12px;
      text-align:left;
      font-size:14px;
      white-space:nowrap;
    }

    table td{
      border:1px solid #e2e8f0;
      padding:10px;
      vertical-align:top;
      min-width:180px;
    }

    .amount-column{
      min-width:120px;
    }

    .file-column{
      min-width:220px;
    }

    .add-btn{
      margin-top:15px;
      background:#16a34a;
      color:white;
      border:none;
      padding:10px 18px;
      border-radius:8px;
      cursor:pointer;
      font-size:14px;
      transition:0.3s;
    }

    .add-btn:hover{
      background:#15803d;
    }

    .submit-btn{
      width:100%;
      margin-top:35px;
      background:#2563eb;
      color:white;
      border:none;
      padding:15px;
      border-radius:10px;
      font-size:16px;
      cursor:pointer;
      transition:0.3s;
    }

    .submit-btn:hover{
      background:#1d4ed8;
    }

    .readonly{
      background:#f1f5f9;
      cursor:not-allowed;
    }

    @media(max-width:768px){

      body{
        padding:15px;
      }

      form{
        padding:20px;
      }

      .header h1{
        font-size:24px;
      }

      table{
        display:block;
        overflow-x:auto;
      }

    }