html, body {
            height: 100%;
            margin: 0;
        }
        .page-wrapper {
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        main {
            flex: 1; /* Fills available vertical space */
        }
         body {
        background: #ffffff;
        font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        color: #333;
    }

    .login-container {
        margin-top: 100px;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .login-card {
        background: #ffffff;
        border-radius: 15px;
        box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
        width: 100%;
        max-width: 450px;
        padding: 40px;
        animation: fadeIn 1s ease-in-out;
    }

    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(-20px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .login-card h2 {
        font-weight: 600;
        text-align: center;
        margin-bottom: 30px;
        color: #333;
    }

    .form-label {
        font-weight: 500;
        margin-bottom: 6px;
    }

    .form-control {
        border-radius: 8px;
        border: 1px solid #ccc;
        padding: 12px 15px;
        font-size: 16px;
    }

    .form-control:focus {
        border-color: #764ba2;
        box-shadow: 0 0 0 0.2rem rgba(118, 75, 162, 0.25);
    }

    .btn-primary {
        background-color: #764ba2;
        border: none;
        border-radius: 8px;
        padding: 12px;
        font-size: 16px;
        font-weight: bold;
        transition: background-color 0.3s ease;
    }

    .btn-primary:hover {
        background-color: #5e3d9f;
    }

    .alert {
        border-radius: 8px;
        font-size: 15px;
    }