/* Name Popup */
.popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.65);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 50;
}

.popup-box {
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(12px);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
    width: 90%;
    max-width: 350px;
}

.popup-title {
    font-size: 28px;
    font-weight: 700;
    color: white;
}

.popup-text {
    font-size: 16px;
    color: #eee;
    margin-bottom: 15px;
}

#usernameInput {
    width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: none;
    outline: none;
    font-size: 16px;
    margin-bottom: 15px;
}

#saveNameBtn {
    width: 100%;
    padding: 12px;
    font-size: 18px;
    border: none;
    border-radius: 12px;
    background: #ff2e2e;
    color: white;
    cursor: pointer;
}

#saveNameBtn:hover {
    background: #cc0f0f;
}