body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #000;
    color: #fff;
    font-family: 'Orbitron', sans-serif;
}

#game-container {
    width: 100vw;
    height: 100vh;
}

#ui-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
}

#ui-overlay > div {
    background-color: rgba(0, 0, 0, 0.5);
    padding: 10px;
    border-radius: 5px;
}

#menu, #game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 40px;
    border-radius: 10px;
}

h1, h2 {
    color: #00ffff;
}

button {
    background-color: #00ffff;
    color: #000;
    border: none;
    padding: 10px 20px;
    margin: 10px;
    font-size: 18px;
    font-family: 'Orbitron', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background-color: #ff00ff;
    transform: scale(1.1);
}

.hidden {
    display: none;
}

input[type="text"] {
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    padding: 5px;
    margin: 10px 0;
}

#highscores-list {
    text-align: left;
    max-height: 200px;
    overflow-y: auto;
}