.age-page {
    max-width: var(--small-width);
    margin: 0 auto;
    padding: 20px;
}

.age-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.age-card {
    flex: 1;
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
}

.diff-card {
    margin-bottom: 0;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.card-icon {
    font-size: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 8px;
}

.date-input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    font-size: 15px;
    background: #f9fafb;
    cursor: pointer;
    transition: border-color 0.2s;
}

.date-input:focus {
    outline: none;
    border-color: #3b82f6;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.result-item {
    background: #f9fafb;
    border-radius: 8px;
    padding: 16px;
    text-align: center;
}

.result-value {
    font-size: 24px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 4px;
}

.result-label {
    font-size: 12px;
    color: #6b7280;
}

.diff-result {
    text-align: center;
    padding: 20px;
    background: #eff6ff;
    border-radius: 8px;
    font-size: 16px;
    color: #1e40af;
    font-weight: 500;
    margin-bottom: 16px;
}

.diff-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.diff-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: #f9fafb;
    border-radius: 6px;
}

.diff-label {
    font-size: 14px;
    color: #6b7280;
}

.diff-value {
    font-size: 14px;
    font-weight: 600;
    color: #1f2937;
}

@media (max-width: 768px) {
    .age-row {
        flex-direction: column;
    }
    
    .age-card {
        margin-bottom: 16px;
    }
}