/* Giriş/Üyelik Modal Stilleri */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.7);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        .modal-content {
            background: white;
            padding: 30px;
            border-radius: 8px;
            width: 400px;
            max-width: 90%;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
        }
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            border-bottom: 2px solid #eee;
            padding-bottom: 15px;
        }
        .modal-header h2 {
            margin: 0;
            color: #2c3e50;
        }
        .close-modal {
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #7f8c8d;
        }
        .form-group {
            margin-bottom: 15px;
        }
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 600;
            color: #2c3e50;
        }
        .form-group input {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
        }
        .form-toggle {
            text-align: center;
            margin-top: 20px;
            color: #7f8c8d;
        }
        .form-toggle a {
            color: #3498db;
            text-decoration: none;
            cursor: pointer;
        }
        .form-toggle a:hover {
            text-decoration: underline;
        }