.refractive-calculator-wrapper{font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,Helvetica,Arial,sans-serif;max-width:900px;margin:0 auto;background:#f9f9f9;border:1px solid #ddd;border-radius:8px;padding:24px;color:#333}.refractive-calculator-wrapper *{box-sizing:border-box}.calc-header{background:#46796c;color:#fff;text-align:center;padding:16px;border-radius:4px;margin-bottom:24px;font-size:24px;font-weight:700;display:flex;justify-content:center;align-items:center;gap:12px}.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}@media(max-width:768px){.calc-grid{grid-template-columns:1fr}}.calc-section{background:#fff;padding:16px;border:1px solid #e0e0e0;border-radius:6px;margin-bottom:16px}.calc-section-title{font-size:16px;font-weight:600;border-bottom:2px solid #46796c;padding-bottom:8px;margin-bottom:16px;margin-top:0}.calc-form-group{margin-bottom:12px}.calc-form-group label{display:block;font-size:13px;font-weight:500;margin-bottom:4px;color:#555}.calc-form-group.inline{display:flex;align-items:center;justify-content:space-between}.calc-form-group.inline label{margin-bottom:0}.calc-input,.calc-select{width:100%;padding:8px 10px;border:1px solid #ccc;border-radius:4px;font-size:14px}.calc-input:focus,.calc-select:focus{border-color:#46796c;outline:none;box-shadow:0 0 0 2px rgba(70,121,108,.2)}.calc-btn-group{display:flex;gap:10px;margin-bottom:20px}.calc-btn{flex:1;padding:12px;background:#eee;border:1px solid #ccc;border-radius:4px;cursor:pointer;font-weight:700;color:#444;transition:all .2s}.calc-btn.active{background:#46796c;color:#fff;border-color:#46796c}.calc-results{background:#fff;border:1px solid #e0e0e0;border-radius:6px;overflow:hidden;margin-top:24px}.calc-results-header{background:#f1f1f1;padding:12px 16px;font-weight:600;border-bottom:1px solid #ddd;text-align:center}.calc-result-row{display:flex;border-bottom:1px solid #eee}.calc-result-row:last-child{border-bottom:none}.calc-result-label{flex:1;padding:12px 16px;background:#fafafa;border-right:1px solid #eee;font-size:14px;color:#555}.calc-result-value{flex:1;padding:12px 16px;font-size:15px;font-weight:700;display:flex;align-items:center}.risk-badge{padding:4px 8px;border-radius:4px;font-size:12px;font-weight:700;text-transform:uppercase;color:#fff}.risk-low{background-color:#4caf50}.risk-moderate{background-color:#ff9800}.risk-high{background-color:#f44336}.pta-bar-container,.rsb-bar-container{width:100%;height:8px;background:#ddd;border-radius:4px;margin-top:4px;overflow:hidden}.pta-bar,.rsb-bar{height:100%;transition:width .3s ease,background-color .3s ease}.help-text{font-size:11px;color:#777;margin-top:2px}