.app-container {
      background-color: #f7f4f0;
      border-radius: 24px;
      max-width: 500px;
      margin: 60px auto;
      padding: 40px;
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
      font-family: 'Yu Gothic', sans-serif;
    }

    .title-text {
      font-size: 28px;
      color: #4a3c2f;
      text-align: center;
      margin-bottom: 30px;
      font-weight: bold;
    }

    .upload-input {
      font-size: 16px;
      display: block;
      margin: 0 auto 20px auto;
      padding: 12px;
      border: 1px solid #dcd2c4;
      border-radius: 8px;
      background-color: #fffaf5;
      color: #4a3c2f;
    }

    .preview-canvas {
      display: block;
      margin: 20px auto;
      border-radius: 12px;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
      max-width: 100%;
    }

    .button-group {
      display: flex;
      justify-content: center;
      margin-top: 30px;
      min-height: 60px;
    }

    .button-wrapper {
      display: flex;
      gap: 20px;
      align-items: center;
    }

    .button-wrapper.only-compress .download-link {
      display: none;
    }

    .compress-button {
      font-size: 18px;
      padding: 12px 24px;
      background-color: #8c7053;
      color: #ffffff;
      border: none;
      border-radius: 12px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    .compress-button:hover {
      background-color: #a08368;
    }

    .download-link {
      font-size: 16px;
      color: #4a3c2f;
      text-decoration: none;
      background-color: #f0e6db;
      padding: 10px 20px;
      border-radius: 10px;
      transition: background-color 0.3s ease;
    }

    .download-link:hover {
      background-color: #e3d4c2;
    }