body {
    margin:0;
    width:100vw;
    height:100vh;
    background-color:#000000;
    overflow:hidden;
    color:white;
}

.ui {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 20px;
    position:fixed;
}

#enterName {
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
}

#enterName:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

#start {
    padding: 8px 16px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

#start:hover {
    background-color: #0056b3;
}

#start:active {
    transform: scale(0.98);
}