body {
            min-height: 100vh;
            background-color: #EEF2FE;
            display: flex;
            justify-content: center;
            align-items: center;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .login-card {
            background-color: white;
            border-radius: 20px;
            padding: 2.5rem 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
            max-width: 400px;
            width: 100%;
        }

        .login-card h2 {
            text-align: center;
            color: #1d3557;
            margin-bottom: 1.5rem;
        }

        .input-group-text {
            background-color: #f1f1f1;
            border: none;
        }

        .form-control {
            border-left: none;
        }

        .input-group {
            box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
            margin-bottom: 1rem;
        }

        .form-control:focus {
            border-color: #457b9d;
            box-shadow: 0 0 0 0.2rem rgba(69, 123, 157, 0.25);
        }

        .btn-primary {
            background-color: #1d3557;
            border: none;
            width: 100%;
            transition: 0.3s;
        }

        .btn-primary:hover {
            background-color: #457b9d;
        }

        .extra a {
            display: block;
            text-align: center;
            margin-top: 1rem;
            color: #1d3557;
            text-decoration: none;
        }

        .extra a:hover {
            text-decoration: underline;
        }