body {
    font-family: 'Consolas', 'Courier New', monospace;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #121212;
    color: #00ff00;
    overflow: hidden;
}
#clock {
    font-size: 7vw;
    font-weight: bold;
    text-align: center;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 20px;
    border-radius: 15px;
    border: 3px solid #00ff00;
    box-shadow: 0 0 30px rgba(0, 255, 0, 0.5);
    letter-spacing: 0.05em;
    min-width: 80%;
    margin-bottom: 20px;
}
#speed-container {
    display: flex;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.8);
    padding: 15px;
    border-radius: 15px;
    border: 2px solid #00ff00;
}
#refresh-speed {
    width: 300px;
    margin: 0 15px;
    accent-color: #00ff00;
}
#speed-value {
    min-width: 50px;
    text-align: center;
}
@media (max-width: 600px) {
    #clock {
        font-size: 12vw;
    }
    #refresh-speed {
        width: 200px;
    }
}