.save-hint {
    font-size: 0.75rem;
    color: #ccc;
    margin-top: 0.3rem;
}

/* Results */
.results-card {
    background: #fff;
    border: 1.5px solid #eee;
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 1.75rem;
}
.results-card.hidden { display: none; }

.date-error {
    font-size: 0.82rem;
    color: #bf4040;
    margin-top: 0.75rem;
}
.date-error.hidden { display: none; }

.age-main {
    text-align: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #f0f0ee;
}
.age-main-value {
    font-size: clamp(2.5rem, 12vw, 4rem);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: #1a1a1a;
    line-height: 1;
}
.age-main-label {
    font-size: 0.85rem;
    color: #999;
    margin-top: 0.35rem;
}
.age-detail {
    font-size: 0.95rem;
    color: #555;
    margin-top: 0.5rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.stat-item {}
.stat-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #bbb;
    margin-bottom: 0.2rem;
}
.stat-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
}
.stat-sub {
    font-size: 0.78rem;
    color: #999;
    margin-top: 0.1rem;
}