/* HTML ve BODY ayarları */
        html, body {
            height: 100%; /* Tüm ekranı kaplayacak şekilde ayarla */
            margin: 0;
            padding: 0;
            font-family: 'Arial', sans-serif;
            background-image: url('../logolar/esenboga.jpg');
            background-size: cover;
            background-position: center center;
            background-repeat: no-repeat;
            background-attachment: fixed;
        }

        .container {
            max-width: 600px;
            width: 85%;
            padding: 30px;
            background-color: rgba(255, 255, 255, 0.85);
            border-radius: 30px;
            box-shadow: 0px 8px 24px rgba(0, 0, 0, 0.2);
            text-align: center;
            margin: 50px auto;
        }

        h1 {
            font-size: 2rem;
            color: #4e6a85;
            margin-bottom: 20px;
        }

        .logo {
            width: 120px;
            margin-bottom: 20px;
            border-radius: 50%;
        }

        .card {
            background-color: #fff;
            border-radius: 15px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            padding: 30px;
            margin-top: 15px;
        }

        .select-campus {
            font-size: 1.2rem;
            color: #416a91;
            margin-bottom: 15px;
        }

        select {
            width: 100%;
            padding: 12px;
            margin-top: 10px;
            border-radius: 8px;
            border: 2px solid #2594e4;
            font-size: 1rem;
            background-color: #ecf0f1;
        }

        button {
            margin-top: 20px;
            padding: 15px;
            width: 100%;
            background-color: #18a3f3;
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 1.2rem;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        button:hover {
            background-color: #29b97f;
        }

        /* Menü Butonu */
        .menu-btn {
            position: fixed; /* Sabit konum */
            top: 20px;
            left: 20px;
            background-color: #2de1f5;
            border: none;
            width: 40px;
            height: 40px;
            cursor: pointer;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 24px;
            color: white;
            transition: background-color 0.3s ease;
            z-index: 20; /* Üstte görünmesini sağla */
            border-radius: 5px;
        }

        .menu-btn:hover {
            background-color: #29b97f;
        }

        /* Menü Liste */
        .menu {
            display: none;
            position: fixed; /* Sabit konumda tut */
            left: 20px; /* Butonun konumuna göre hizalama */
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 5px;
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.2);
            z-index: 10; /* İçerik üstünde görünecek */
            min-width: 120px; /* Menü genişliğini sabitle */
        }

        .menu a {
            display: block;
            padding: 10px 20px;
            text-decoration: none;
            color: #000;
            transition: background-color 0.3s ease;
        }

        .menu a:hover {
            background-color: #f0f0f0;
        }