:root {
     --navy: #0b1d3a;
  --white: #ffffff;
  --green: #43d39e;
  --blue: #1e90ff;
  --gray-bg: #f4f7fa;
  --text-color: #333;
      
    }

    html, body {
      margin: 0;
      padding: 0;
      height: 100%;
      font-family: 'Segoe UI', sans-serif;
      background-color:  #0b1d3a;
      color: #ffffff;
    }

    body {
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    .header {
     
      display: flex;
      align-items: center;
      padding: 10px 20px;
      
    }

    .logo img {
      width: 100px;
      height: 100px;
      border-radius: 8px;
       background-color:  #0b1d3a
    }

    .title {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    
    .color-strip {
      width: 10px;
      height: 40px;
      background-color:#00cfff;
      margin-right: 10px;
      border-radius: 5px;
    }

    .title h1 {
      font-size: 30px;
      margin: 0;
      color: #ffffff;
    }

    .menu {
      background-color: var(--green);
      text-align: center;
      padding: 12px 0;
     
    }

    .menu a {
      color: #ffffff;
      margin: 0 18px;
      font-weight: bold;
      text-decoration: none;
      font-size: 16px;
      transition: color 0.3s ease;
    }

    .menu a:hover {
      color:var(--navy)
     
    }

    .content {
      flex: 1;
      padding: 30px;
    }

    .up h2 {
      text-align: center;
      color: var(--navy);
      margin-bottom: 20px;
    }

    .center img {
      width: 100%;
      max-height: 500px;
      border-radius: 12px;
      object-fit: cover;
      box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
    }

    .down {
      margin-top: 30px;
    }

    .down p {
      
      margin: 0 auto;
      font-size: 17px;
      line-height: 1.8;
      text-align: justify;
      color:#ffffff;
    }

   
    .footer {
      background-color: var(--green);
      text-align: center;
      padding: 12px 0;
     
    }

    .footer p {
      margin: 0;
    }

    @media (max-width: 768px) {
      .logo img {
        width: 70px;
        height: 70px;
      }

      .title h1 {
        font-size: 22px;
      }

      .menu a {
        display: block;
        margin: 8px 0;
      }

      .center img {
        max-height: 300px;
      }
    }