body{font-family:Arial,sans-serif;margin:20px;background-color:#f4f4f4}.back-button{color:#007bff;text-decoration:none;font-size:16px;font-weight:700}.back-button:hover{text-decoration:underline}.file-list{list-style-type:none;padding:0}.directory-item{background-color:#e7f7ff;border:1px solid #007bff;margin:5px 0;padding:10px;border-radius:5px;font-weight:700;font-size:16px}.directory-item a{color:#007bff;text-decoration:none}.directory-item a:hover{text-decoration:underline}.file-item{background-color:#f0f8ff;border:1px solid #ccc;margin:5px 0;padding:10px;border-radius:5px;font-size:16px}.file-item a{color:#333;text-decoration:none}.file-item a:hover{text-decoration:underline}.delete-button{color:red;font-size:14px;text-decoration:none}.delete-button:hover{text-decoration:underline}