body {
        background: #f8f9fa;
        font-family: "Vazir", "Tahoma", sans-serif !important;
        transition: background 0.3s, color 0.3s;
    }

    .login-container {
        min-height: 100vh;
    }

    .login-box {
        background: #fff;
        padding: 30px;
        border-radius: 12px;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        transition: background 0.3s, color 0.3s;
    }

    .login-box h2 {
        text-align: center;
        margin-bottom: 25px;
        color: #333;
        font-weight: bold;
    }

    .form-control {
        border-radius: 8px;
        padding: 12px;
        font-size: 16px;
    }

    .btn-primary {
        border-radius: 8px;
        padding: 12px;
        font-size: 18px;
        font-weight: bold;
    }

    .login-image {
        max-width: 100%;
        border-radius: 12px;
    }

    .alert-danger {
        border-radius: 8px;
    }

    /* حالت تاریک */
    body.dark {
        background: #121212;
        color: #eaeaea;
    }

    body.dark .login-box {
        background: #1e1e1e;
        color: #eaeaea;
        box-shadow: 0 0 20px rgba(0, 0, 0, 0.6);
    }

    body.dark .form-control {
        background: #2c2c2c;
        color: #fff;
        border: 1px solid #444;
    }

    body.dark .btn-primary {
        background: #0d6efd;
    }

    .theme-toggle {
        position: absolute;
        top: 15px;
        left: 15px;
        cursor: pointer;
    }
    #installBtn {
    padding: 0.2rem 0.5rem;
    font-size: 0.9rem;
}

    #password {
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
    }

    #togglePassword {
        border-top-right-radius: 0;
        border: 0px;
        border-bottom-right-radius: 0;
    }


    @media (max-width: 768px) {
        .login-box {
            margin-top: 20px;
        }
    }