body {
            margin: 0;
            font-family: Arial, sans-serif;
            background: url('../img/nền.jpg') no-repeat center center/cover;
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding-top: 80px;
        }

        .card {
            background: rgba(115, 34, 75, 0.081);
            backdrop-filter: blur(10px);
            border-radius: 25px;
            padding: 35px;
            width: 350px;
            text-align: center;
            color: rgb(40, 3, 12);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }

        .avatar {
            width: 150px;
            height: 150px;
            border-radius: 50%;
            overflow: hidden;
            margin: 0 auto 20px;
            border: 2px solid black;
        }

        .avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        h2 {
            margin: 20px 0;
        }

        p {
            margin: 10px 0;
        }