* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    }

    body {
      background-color: #f5f9f5;
      color: #333;
    }

    header {
      position: relative;
      height: 100vh;
      overflow: hidden;
    }

    header video {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    header .content {
      position: relative;
      z-index: 2;
      color: #fff;
      text-align: center;
      padding: 10rem 1rem;
    }

    header h1 {
      font-size: 3rem;
      margin-bottom: 0.5rem;
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    }

    header p {
      font-size: 1.2rem;
      color: #f9f9f9;
      text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    }

    nav {
      background-color: #2c6e49;
      padding: 1rem;
      text-align: center;
      position: sticky;
      top: 0;
      z-index: 10;
    }

    nav a {
      color: #fff;
      margin: 0 1rem;
      text-decoration: none;
      font-weight: bold;
    }

    .section {
      padding: 3rem 1rem;
      max-width: 1200px;
      margin: 0 auto;
    }

    .section h2 {
      text-align: center;
      margin-bottom: 2rem;
      color: #2c6e49;
      font-size: 2rem;
    }

    .features {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 1.5rem;
    }

    .feature {
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      padding: 1.5rem;
      text-align: center;
    }

    .feature h3 {
      margin-bottom: 1rem;
      color: #2c6e49;
    }

    .feature img {
      width: 100%;
      height: auto;
      border-radius: 8px;
      margin-bottom: 1rem;
    }

    .contact {
      background-color: #e3f0e3;
      padding: 2rem;
      border-radius: 8px;
    }

    .contact form {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      max-width: 500px;
      margin: 0 auto;
    }

    .contact input, .contact textarea {
      padding: 0.75rem;
      border: 1px solid #ccc;
      border-radius: 5px;
      font-size: 1rem;
    }

    .contact button {
      padding: 0.75rem;
      background-color: #2c6e49;
      color: #fff;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 1rem;
    }

    footer {
      background-color: #2c6e49;
      color: #fff;
      text-align: center;
      padding: 1rem;
      margin-top: 2rem;
    }

    #welcomePopup {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.7);
      display: flex;
      justify-content: center;
      align-items: center;
      z-index: 10000;
    }

    #welcomePopup .popup-content {
      background: #fff;
      padding: 2rem;
      border-radius: 12px;
      text-align: center;
      max-width: 400px;
      box-shadow: 0 5px 20px rgba(0,0,0,0.2);
      animation: fadeIn 0.5s ease forwards;
    }

    #welcomePopup h2 {
      margin-bottom: 1rem;
      color: #2c6e49;
    }

    #welcomePopup button {
      padding: 0.5rem 1rem;
      background-color: #2c6e49;
      color: #fff;
      border: none;
      border-radius: 5px;
      cursor: pointer;
      font-size: 1rem;
      margin-top: 1rem;
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: scale(0.9); }
      to { opacity: 1; transform: scale(1); }
    }