/* ===================================
   WATER CALCULATOR STYLES
   =================================== */

.calculator-section,
.manual-section {
    margin-bottom: var(--spacing-lg);
}

.calculator-section h4,
.manual-section h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-sm);
}

.calculator-hint {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: var(--spacing-xl) 0;
}

/* Activity Level Selector */

.activity-level-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.activity-level-selector input[type="radio"] {
    display: none;
}

.activity-level-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.activity-level-option:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
}

.activity-level-selector input[type="radio"]:checked+.activity-level-option {
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.5);
}

.activity-level-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.activity-level-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.activity-level-info strong {
    color: white;
    font-size: 1rem;
}

.activity-level-info span {
    color: var(--gray-400);
    font-size: 0.875rem;
}

.activity-level-info .activity-bonus {
    color: #60a5fa;
    font-weight: 600;
    font-size: 0.875rem;
}

/* Special Conditions */

.special-conditions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.checkbox-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.checkbox-option:hover {
    background: rgba(255, 255, 255, 0.05);
}

.checkbox-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #60a5fa;
}

.checkbox-option span {
    color: var(--gray-300);
    font-size: 0.9375rem;
}

.checkbox-option input[type="checkbox"]:checked+span {
    color: white;
    font-weight: 500;
}

/* Calculation Result */

.calculation-result {
    margin-top: var(--spacing-lg);
    animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.result-card {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.result-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.result-content h4 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.result-value {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: #60a5fa;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 0 20px rgba(96, 165, 250, 0.5);
}

.result-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9375rem;
}

.breakdown-row span:first-child {
    color: var(--gray-400);
}

.breakdown-row span:last-child {
    color: white;
    font-weight: 600;
}

.result-note {
    font-size: 0.8125rem;
    color: var(--gray-500);
    text-align: center;
    line-height: 1.5;
    margin-top: var(--spacing-md);
}

.result-note strong {
    color: var(--gray-400);
}

/* Responsive */

@media (max-width: 768px) {
    .activity-level-option {
        flex-direction: column;
        text-align: center;
    }

    .result-value {
        font-size: 2.5rem;
    }
}