/* Inherit Global */
.tool-container { max-width: 600px; margin: 0 auto; padding: 20px 16px; }

.input-card {
    background-color: var(--bg-surface); padding: 24px; border-radius: var(--radius-lg);
    border: 1px solid var(--border-color); box-shadow: var(--shadow-sm); margin-bottom: 24px;
    animation: fadeIn 0.3s ease-out;
}

/* Date Picker */
.date-picker {
    width: 100%; padding: 14px; border: 2px solid var(--border-color);
    border-radius: var(--radius-md); background: var(--bg-body);
    font-size: 1rem; color: var(--text-main); font-family: var(--font-sans);
    outline: none; transition: border-color 0.2s;
}
.date-picker:focus { border-color: var(--primary-blue); }

.input-group label { display: block; margin-bottom: 8px; font-weight: 600; font-size: 0.9rem; }

/* Age Display (Boxes) */
.age-display { text-align: center; margin-bottom: 25px; }

.main-box {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
    color: white; padding: 20px; border-radius: var(--radius-lg);
    margin-bottom: 15px; box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}
.main-box span { display: block; font-size: 3rem; font-weight: 800; line-height: 1; }
.main-box small { font-size: 1rem; opacity: 0.9; text-transform: uppercase; letter-spacing: 1px; }

.age-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.age-box {
    background: var(--bg-body); border: 1px solid var(--border-color);
    padding: 15px; border-radius: var(--radius-md);
}
.age-box span { display: block; font-size: 1.8rem; font-weight: 700; color: var(--text-main); }
.age-box small { color: var(--text-muted); font-size: 0.85rem; font-weight: 500; }

/* Extra Info List */
.extra-info {
    background: var(--bg-body); border-radius: var(--radius-md);
    padding: 15px; border: 1px solid var(--border-color);
}
.info-row {
    display: flex; justify-content: space-between;
    padding: 10px 0; border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}
.info-row:last-child { border-bottom: none; }
.info-row span { color: var(--text-muted); }
.info-row strong { color: var(--text-main); }

/* Buttons */
.primary-btn {
    background-color: var(--primary-blue); color: white; border: none; padding: 14px;
    border-radius: var(--radius-md); font-weight: 600; cursor: pointer; font-size: 1rem;
    width: 100%; transition: transform 0.1s;
}
.primary-btn:active { transform: scale(0.98); }

.secondary-btn {
    background: transparent; border: 2px solid var(--border-color);
    color: var(--text-main); padding: 14px; border-radius: var(--radius-md);
    font-weight: 600; cursor: pointer; width: 100%;
}

.hidden { display: none !important; }
.full-width { width: 100%; }

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.6); z-index: 2000;
    display: flex; align-items: center; justify-content: center; padding: 20px;
    backdrop-filter: blur(4px);
}
.modal-content {
    background: var(--bg-surface); width: 100%; max-width: 400px;
    border-radius: var(--radius-lg); padding: 24px;
}
.modal-header { display: flex; justify-content: space-between; margin-bottom: 16px; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}