:root {
    color-scheme: light;
}

body {
    min-height: 100vh;
}

.app-shell {
    max-width: 760px;
}

.list-shell {
    max-width: 1120px;
}

.countdown-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem;
}

.countdown-item {
    padding: 1rem 0.5rem;
    text-align: center;
    background: var(--bs-primary-bg-subtle);
    border: 1px solid var(--bs-primary-border-subtle);
    border-radius: 0.75rem;
}

.countdown-item strong {
    display: block;
    color: var(--bs-primary-text-emphasis);
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    line-height: 1;
}

.countdown-item span {
    display: block;
    margin-top: 0.5rem;
    color: var(--bs-secondary-color);
    font-size: 0.8rem;
}

.legend-box {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    margin-right: 0.35rem;
    border-radius: 0.2rem;
    vertical-align: -0.15rem;
}

@media (max-width: 575.98px) {
    .countdown-grid {
        gap: 0.4rem;
    }

    .countdown-item {
        padding: 0.8rem 0.25rem;
    }
}