.knv-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-family: sans-serif;
}

.aq-box {
    border-radius: 0.4rem;
    padding: 0.5rem;
    font-size: 0.85rem;
    color: #ffffff;
    transition: background 0.3s ease;
}

.aq-box h3 {
    margin: 0 0 0.25rem 0;
    font-size: 0.95rem;
}

.aq-box.good { background: #00e400; }
.aq-box.moderate { background: #ffff00; color: #000; }
.aq-box.unhealthy { background: #ff7e00; }
.aq-box.very-unhealthy { background: #ff0000; }
.aq-box.hazardous { background: #7e0023; }
.aq-box.loading { background: #666; }

.aq-legend {
    margin-top: 1rem;
    font-size: 0.75rem;
}

.aq-legend .item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.3rem;
}

.aq-legend .color-box {
    width: 1rem;
    height: 1rem;
    border-radius: 0.2rem;
}

.aq-legend .good { background: #00e400; }
.aq-legend .moderate { background: #ffff00; border: 1px solid #aaa; }
.aq-legend .unhealthy { background: #ff7e00; }
.aq-legend .very-unhealthy { background: #ff0000; }
.aq-legend .hazardous { background: #7e0023; }