{
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    display: grid;
    place-items: center;
    font-family: Arial, sans-serif;
    color: #eafff7;
    background: #071510;
}

.clock-card {
    width: min(90%, 650px);
    padding: 45px 30px;
    text-align: center;
    border: 1px solid #22c983;
    border-radius: 20px;
    background: #0d241b;
    box-shadow: 0 0 35px rgba(34, 201, 131, 0.25);
}

#date {
    margin: 0 0 16px;
    color: #91d8ba;
    font-size: 1.1rem;
}

.time-row {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 12px;
}

#time {
    font-family: "Courier New", monospace;
    font-size: clamp(2.7rem, 10vw, 6rem);
    font-weight: bold;
    letter-spacing: 3px;
}

#period {
    padding-bottom: 10px;
    color: #22c983;
    font-size: 1.2rem;
    font-weight: bold;
}

@media (max-width: 500px) {
    .clock-card {
        padding: 35px 15px;
    }

    #period {
        padding-bottom: 5px;
    }
}