body {
            margin: 0;
            font-family: Arial, sans-serif;
            background-color: #f4f4f9;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .header {
            text-align: center;
            padding: 20px;
            background-color: #0566a2;
            color: white;
            width: 100%;
        }
        .header h1 {
            margin: 0;
            font-size: 1.5rem;
        }

        .header img {
            width: 150px;
            height: 150px;
            border-radius: 40%;
            margin-bottom: 10px;
        }
        .content {
            margin-top: 20px;
            width: 90%;
            max-width: 1000px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            padding: 20px;
        }

        .content h2 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: #333;
            text-align: center;
        }

        .content h3 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: white;
            text-align: center;
            }

        .books-list {
            list-style: none;
            padding: 0;
        }

        .books-list li {
            padding: 10px;
            border-bottom: 1px solid #ddd;
            font-size: 1.1rem;
            color: #555;
        }

        .books-list li:last-child {
            border-bottom: none;
        }
        
        .books-table {
            width: 100%;
            border-collapse: collapse;
        }
        .books-table h3 {
            font-size: 1.6rem;
            margin-bottom: 0px;
            color: white;
            text-align: center;
            background-color:#0566a2;
             }
        .books-table th, .books-table td {
            text-align: left;
            padding: 10px;
            border-bottom: 1px solid #ddd;
        }

        .books-table th {
            background-color:#0566a2;
            color: white;
            font-weight: bold;
            text-align:center;
            border-bottom: 1px solid rgb(5, 5, 158); /* Agrega bordes horizontales entre filas */
          
        }

        .books-table td {
            color: #555;
        }
        .books-table tr {
            }
        .resumen-table {
            width: 100%;
            border-collapse: collapse;
        }

        .resumen-table th, .resumen-table td {
            text-align: center;
            padding: 10px;
            border-bottom: 1px solid #ddd;
        }

        .resumen-table th {
            background-color:#ab068a;
            color: white;
            font-weight: bold;
            font-size:larger;
        }

        .resumen-table td {
            color: #555;
        }
        .footer {
            margin-top: auto;
            padding: 10px;
            text-align: center;
            font-size: 0.8rem;
            color:#044e98;
        }
        
        footer p {
            margin: 0;
            font-size: 0.9em;
        }       
         .menu {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
            margin-top: 20px;
            width: 90%;
        }

        .menu button {
            padding: 15px;
            font-size: 1.2rem;
            font-weight: bold;
            color: #ffffff;
            background-color:#0566a2;
            border: none;
            border-radius: 10px;
            cursor: pointer;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            transition: background-color 0.3s, transform 0.2s;
	    width: 300px;
        }
       
        .menu button:hover {
            background-color: #0566a2;
            transform: scale(1.05);
        }

        .menu button:active {
            transform: scale(1);
        }
 /* Enlace no visitado */
        a:link {
            color: white;
            
        }
        a {
            text-decoration: none;
        }
    
        
        a:visited {
            color: white;
        }
        .form-container {
            margin-top: 20px;
            padding: 20px;
            width: 90%;
            max-width: 800px;
            background-color: white;
            border-radius: 10px;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .form-container label {
            display: block;
            margin-bottom: 10px;
            font-weight: bold;
            
        }

        .form-container select {
            width: 100%;
            padding: 10px;
            margin-bottom: 20px;
            font-size: 1rem;
            border: 1px solid #ccc;
            border-radius: 5px;
        }

        .form-container button {
            width: 100%;
            padding: 10px;
            font-size: 1rem;
            font-weight: bold;
            color: white;
            background-color:#0566a2;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .form-container button:hover {
            background-color:#0566a2;
        }