body {
            font-family: 'Century Gothic', sans-serif;
            background-image: url("images/bg.jpg");
            color: #f5f5f5;
            text-align: center;
            margin: 0;
            padding: 0;
        }

        .container {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            margin: 0px;
            background-color: none;
            padding: 20px;
        }

        h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #7ee014;
        }

        form {
            background-color: #131313;
            border: 1px solid #7ee014;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.2);
            display: flex;
            flex-direction: column;
            align-items: center;
            width: 300px;
            margin: 0px;
        }

        label {
            font-size: 1.2rem;
            margin-bottom: 10px;
        }

        select, input[type="password"] {
            width: 100%;
            padding: 10px;
            margin-bottom: 15px;
            border-radius: 5px;
            border: 1px solid #222222;
            background-color: #353535;
            color: #f5f5f5;
        }

        button {
            font-family: 'Century Gothic', sans-serif;
            padding: 10px 20px;
            background-color: #7ee014;
            color: #000000;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s;
            margin: 0px;
        }

        button:hover {
            background-color: #5ea511;
        }

        p {
            font-size: 1rem;
            margin-top: 10px;
        }

        strong {
            color: #a6ff47;
        }
        .logout-btn, .back-btn {
            display: block;
            margin-top: 20px;
            padding: 10px;
            color: white;
            text-align: center;
            width: 100px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            transition: background-color 0.3s, transform 0.3s;
        }
        .back-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 20px;
            padding: 12px 24px;
            border-radius: 5px;
            text-decoration: none;
            font-weight: bold;
            transition: all 0.3s;
            background: #131313;
            color: #7ee014;
            border: 1px #73ff00 solid;
            cursor: pointer;
            font-size: 1.1rem;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }

            .back-btn:hover {
                background-color: #7ee014;;
                color:#131313;
                transform: translateY(-2px);
                box-shadow: 0 6px 12px rgba(0,0,0,0.2);
            }
        .tabs {
            margin: 0px;
            display: flex;
            margin-bottom: 20px;
            gap: 20px;
        }
        .tab {
            padding: 10px 20px;
            cursor: pointer;
            border: none;
            background-color: #7ee014;
            color: #000000;
            font-size: 16px;
            transition: all 0.3s ease;
        }
        .tab.active {
            color: #000000;
            font-weight: bold;
        }
        .tab-content {
            display: none;
        }
        .tab-content.active {
            display: block;
        }
        .register-link {
            text-align: center;
            margin-top: 15px;
        }
        .new_username {
            width: 100%;
            padding: 10px;
            margin-bottom: 15px;
            border-radius: 5px;
            border: 1px solid #444;
            background-color: #4e5862;
            color: #f5f5f5;
        }
        .register-link a {
            color: #007bff;
            text-decoration: none;
        }
        .register-link a:hover {
            text-decoration: underline;
        }
        .form-group {
            background-color: #131313;
            margin-bottom: 15px;
        }
        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: bold;
        }
    .username-field {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    border: 1px solid #444;
    background-color: #353535;
    color: #f5f5f5;
    }
    
    .username-field::placeholder {
        color: #b8bcc0 !important;
    }
    
    .username-field:focus {
        background-color: #5a6570 !important;
        border-color: #4a5560 !important;
        outline: none;
        box-shadow: 0 0 0 2px rgba(78, 88, 98, 0.2);
    }
    .alert {
    padding: 10px;
    margin: 10px 0;
    border-radius: 5px;
    font-weight: bold;
}

.alert-error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ef5350;
}

.alert-success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #66bb6a;
}

@media (max-width: 400px) {
    form {
        width: 85%;
    }
}