/* Non-critical styles for Tank Volume Calculator */
.input-field input.volume-input { background: #f0f9ff; font-weight: 600; color: #0284c7; }
.custom-option:hover { background: #f0f9ff; color: #0284c7; }
.custom-option.selected { background: #e0f2fe; font-weight: 600; color: #0284c7; }
.decimal-helper { font-size: 0.8rem; color: #0369a1; margin-top: 16px; padding: 10px 12px; background: #e0f2fe; border: 1px solid #bae6fd; border-radius: 8px; display: flex; align-items: center; gap: 8px; line-height: 1.4; }
.decimal-helper::before { content: 'ℹ️'; font-size: 0.9rem; flex-shrink: 0; }
@media (min-width: 769px) {
    .left-panel, .right-panel { box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08); transition: box-shadow 0.3s ease; }
}