/* style.css */
body { margin: 0; overflow: hidden; font-family: 'Segoe UI', sans-serif; }

/* The choice menu */
#choiceUI {
    position: absolute;
    bottom: 10%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    display: flex;
    gap: 20px;
}

.nav-btn {
    padding: 15px 30px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: 2px solid #00d4ff;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    transition: 0.3s;
}

.nav-btn:hover {
    background: #00d4ff;
    color: black;
}

/* Start Overlay */
#overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: black;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

#startBtn {
    padding: 20px 50px;
    font-size: 24px;
    background: #00d4ff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.hidden { display: none !important; }