.auth-popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    background: #222;
    padding: 15px;
    border: 2px solid #fff;
    color: #fff;
    font-family: 'Arial', sans-serif;
    box-shadow: 5px 5px 0px #ff00ff;
}

.auth-content h2 {
    font-size: 18px;
    text-align: center;
    margin-bottom: 10px;
}

.auth-tabs {
    display: flex;
    justify-content: space-between;
}

.auth-tabs button {
    width: 50%;
    background: #444;
    color: white;
    border: none;
    padding: 5px;
    cursor: pointer;
}

.auth-tabs button:hover {
    background: #666;
}

.auth-tab {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
}

.auth-tab input {
    padding: 5px;
    margin: 5px 0;
    border: 1px solid #fff;
    background: #000;
    color: white;
}

.auth-button {
    background: #00ff00;
    color: #000;
    border: none;
    padding: 5px;
    cursor: pointer;
}

.auth-button:hover {
    background: #00cc00;
}

.close-btn {
    float: right;
    cursor: pointer;
    font-size: 18px;
    font-weight: bold;
    color: red;
}