* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

#visitor-count {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 500;
    z-index: 1000;
    pointer-events: none;
}

#visitor-count #count {
    font-weight: 700;
    font-size: 1.2rem;
}

#app {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: white;
    transition: background-color 0.1s ease;
    cursor: pointer;
    user-select: none;
}

#app.active {
    background-color: #00ff00;
}

#content {
    text-align: center;
}

#message {
    font-size: 5rem;
    font-weight: 600;
    text-align: center;
    color: #000;
}

#instruction {
    font-size: 1.2rem;
    font-weight: 400;
    color: #666;
    margin-top: 2rem;
    text-align: center;
}

@media (max-width: 768px) {
    #message {
        font-size: 3rem;
    }

    #instruction {
        font-size: 1rem;
        margin-top: 1.5rem;
    }
}

@media (max-width: 480px) {
    #message {
        font-size: 2rem;
    }

    #instruction {
        font-size: 0.9rem;
        margin-top: 1rem;
    }
}