   min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .login-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
            padding: 2rem;
            width: 100%;
            max-width: 400px;
        }
        .logo {
            text-align: center;
            margin-bottom: 2rem;
       