<!doctype html>
<html lang="ru">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="static/css/bootstrap/bootstrap.min.css">
    <title>Главная</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            background-color: #013220;
            background-image: linear-gradient(315deg, #63d471 0%, #233329 74%);
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .frame {
            background-color: white;
            border-radius: 15px;
            padding: 30px;
            width: calc(100% - 60px);
            height: calc(100% - 60px);
            box-sizing: border-box;
        }
        .underline-hover { 
          position: relative; 
          color: #000; 
          text-decoration: none; 
        } 

        .underline-hover::before { 
          content: ''; 
          position: absolute; 
          width: 0; 
          height: 2px; 
          bottom: 0; 
          left: 50%; 
          background-color: #000; 
          transition: all 0.3s ease; 
        } 

        .underline-hover:hover::before { 
          width: 100%; 
          left: 0; 
        }

        .underline-page { 
          position: relative; 
          color: #000; 
          text-decoration: none; 
        } 

        .underline-page::before { 
          content: ''; 
          position: absolute; 
          width: 100%; 
          height: 2px; 
          bottom: 0; 
          left: 0; 
          background-color: #000; 
        }

        /* for info block  */
        .logo-container {
            position: relative;
        }

        .logo {
            transition: opacity 0.5s ease-in-out;
        }

        .logo-container:hover .logo {
            opacity: 0;
        }

        .logo-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('static/pictures/logo_vf.png');
            background-size: cover;
            background-position: center;
            opacity: 0; /* Изначально невидим */
            transition: opacity 0.5s ease-in-out;
        }

        .logo-container:hover::before {
            opacity: 1; /* Показать при наведении */
        }

    </style>


</head>
<body>
    
    <div class="frame">
    
        <div class="container">
             <?php include __DIR__ . '/static/templates/page_header.php'; ?>
        </div>
    <div class="container my-5">
      <div class="p-1 text-center bg-body-tertiary rounded-3">
        <h3>Тренажер по тактике</h3>    
        <img class="bi" width="66%" height="100%" src="static/pictures/vf_tank.png" role="img" aria-label="Bootstrap" alt="milbase">
            
      <div class="d-inline-flex gap-2 mb-5">
          </div>
        </div>
    </div>
<!-- /info -->
   
        <!-- footer -->
        <div class="container">
            <footer class="container d-flex flex-wrap justify-content-between align-items-center py-3 my-4 border-top">
                <div class="col-md-4 d-flex align-items-center">
                    <a href="navigation/authors/index.php" class="mb-3 me-2 mb-md-0 text-body-secondary text-decoration-none lh-1">
                      <br><br>
                      <img class="bi logo position-absolute start-50 translate-middle" width="80" height="80" src="static/pictures/gerb.png" role="img" aria-label="Bootstrap" alt="milbase">
                    </a>
                    <span class="mb-3 mb-md-0 text-body-secondary">© Фирсов Андрей, 2025</span>
                    
                </div>
                <ul class="nav col-md-4 justify-content-end list-unstyled d-flex">
                    <span class="mb-3 mb-md-0 text-body-secondary">Кафедра ТиОП</span>
                </ul>
            </footer>
        </div>
        <!-- /footer -->
    </div>
</body>
</html>
