.hc-calculator#hc-water-intake {
    background: #e3f2fd;
    border: 1px solid #90caf9;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.hc-result-value {
    color: #1565c0;
    font-size: 2.2em;
}

.hc-water-cups {
    margin-top: 15px;
    font-size: 1.1em;
    color: #0d47a1;
    text-align: center;
    background: rgba(255,255,255,0.5);
    padding: 10px;
    border-radius: 8px;
}

.hc-result-note {
    font-size: 0.8em;
    color: #546e7a;
    margin-top: 15px;
    text-align: center;
}