*{
    margin:0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI',sans-serif;
}
body{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background 0.5s,color 0.5s;
}
.clock-container{
    padding: 40px 60px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.3);
}
#time{
    font-size: 60px;
    letter-spacing: 15px;
    margin: 10px 0;
}
#ampm{
    font-size: 20px;
    letter-spacing: 2px;
}
#day-date{
    font-size: 22px;
    margin-bottom: 10px;
}
.day{
    background: #e0f2fe;
    color: #0f172a;
}
.day .clock-container{
    background: #ffffff;
}
.night{
    background: #020617;
    color: #e0f2fe;
}
.night .clock-container{
    background: #020617;
    box-shadow: 0 0 25px rgba(34,211,238,0.4);
}