:root {
      --blue:#0056b3;
      --light-blue: #e9f3ff;
      --text-color: #333;
      --bg-color: #ffffff;
    }
    * {
      box-sizing: border-box;
    }
    body {
      font-family: "Inter", sans-serif;
      background: var(--bg-color);
      color: var(--text-color);
      margin: 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }
    header {
      background: var(--blue);
      color: white;
      padding: 2rem 1rem;
      text-align: center;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    }
    header h1 {
      margin: 0;
      font-size: 2rem;
    }
    header p {
      margin-top: 10px;
      font-size: 1rem;
      opacity: 0.9;
    }
    .hero {
      text-align: center;
      padding: 2rem 1rem 0.5rem;
      max-width: 800px;
      margin: auto;
    }
    .hero h2 {
      font-size: 1.8rem;
      margin-bottom: 10px;
      color: #0056d2;
    }
    .hero p {
      font-size: 1.1rem;
      color: #555;
      line-height: 1.6;
    }
    main {
      flex: 1;
      width: 100%;
      max-width: 800px;
      margin: 1rem auto;
      padding: 1.5rem;
      background: var(--light-blue);
      border-radius: 12px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
      animation: fadeIn 0.8s ease;
    }
    textarea {
      width: 100%;
      height: 150px;
      padding: 12px;
      font-size: 1rem;
      border: 2px solid var(--blue);
      border-radius: 10px;
      resize: vertical;
      outline: none;
      transition: 0.3s;
    }
    textarea:focus {
      border-color: #0056d2;
      box-shadow: 0 0 5px rgba(0, 91, 212, 0.3);
    }
    .buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 15px 0;
      justify-content: center;
    }
    button {
      background: var(--blue);
      color: white;
      border: none;
      padding: 10px 18px;
      border-radius: 8px;
      cursor: pointer;
      font-size: 0.95rem;
      transition: 0.2s;
    }
    button:hover {
      background: #0056d2;
      transform: scale(1.05);
    }
    .output-section {
      background: white;
      padding: 12px;
      border-radius: 10px;
      border: 1.5px solid var(--blue);
      min-height: 100px;
      font-size: 1rem;
      white-space: pre-wrap;
      word-break: break-word;
      transition: 0.3s;
    }
    .download {
      margin-top: 15px;
      display: flex;
      justify-content: center;
    }
    footer {
      text-align: center;
      padding: 20px 10px;
      font-size: 0.9rem;
      color: #555;
      border-top: 1px solid #ddd;
      background-color: #f9f9f9;
      margin-top: auto;
    }
    footer nav a {
      margin: 0 10px;
      color: #0056d2;
      text-decoration: none;
      font-weight: 500;
    }
    footer nav a:hover {
      text-decoration: underline;
    }
    .section {
      margin-top: 2rem;
      padding: 1rem;
      background: white;
      border-radius: 10px;
    }
    .section h3 {
      color: #0056d2;
      margin-bottom: 0.5rem;
    }
    .section p {
      margin-bottom: 1rem;
    }
    .example-box {
      background: white;
      border: 1px solid #ccc;
      padding: 15px;
      border-radius: 8px;
      margin-top: 1rem;
      font-family: monospace;
    }
    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(15px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    @media (max-width: 600px) {
      header h1 {
        font-size: 1.5rem;
      }
      .hero h2 {
        font-size: 1.4rem;
      }
      button {
        font-size: 0.85rem;
        padding: 8px 14px;
      }
    }