.countdown-container {
    width: 100%;
    box-sizing: border-box;
}

.countdown-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.countdown-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #f7f7f7;
    padding: 15px;
    border-radius: 4px;
    text-align: center;
}

.countdown-digit {
    font-size: 2.5rem;
    font-weight: bold;
    line-height: 1.2;
}

.countdown-label {
    font-size: 0.9rem;
    margin-top: 5px;
    text-transform: uppercase;
}

.countdown-expire-message {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 500;
    padding: 15px 0;
}

@media (max-width: 767px) {
    .countdown-inner {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}