body {
      background: #f4f8fb;
      font-family: 'Segoe UI', sans-serif;
    }
    .upload-container {
      max-width: 600px;
      margin: 40px auto;
      background: white;
      padding: 30px;
      border-radius: 15px;
      box-shadow: 0 0 10px rgba(0,0,0,0.1);
    }
    .form-label {
      font-weight: 600;
    }
    #preview {
      margin-top: 20px;
    }
    footer {
      background: #0d6efd;
      color: white;
      padding: 20px 0;
      text-align: center;
      margin-top: 60px;
    }
    .spinner-border {
      display: none;
      width: 1.5rem;
      height: 1.5rem;
    }
    input{
        height: 50px;
    }
    #top-loader {
    position: fixed;
    top: 0;
    left: 0;
    height: 20px;
    width: 0%;
    background-color: #fd0d0d;
    z-index: 9999;
    transition: width 0.4s ease;
  }

  footer {
    text-align: center;
  
  }