body {
      background: linear-gradient(135deg, #1de9b6, #1dc4e9);
      min-height: 100vh;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      color: #fff;
      padding: 2rem 0;
    }

    .markdown-container {
      background: rgba(255, 255, 255, 0.07);
      backdrop-filter: blur(12px);
      border-radius: 20px;
      padding: 2rem;
      box-shadow: 0 12px 20px rgba(0, 0, 0, 0.3);
    }

    textarea, #preview {
      background-color: rgba(255, 255, 255, 0.1);
      color: #fff;
      border: 1px solid rgba(255, 255, 255, 0.2);
      border-radius: 10px;
    }

    textarea:focus, #preview:focus {
      outline: none;
      border-color: #fff;
      box-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
    }

    label {
      color: #ffffffcc;
    }

    h1 {
      font-weight: 700;
      color: #fff;
    }
    #preview img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 10px 0;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }