:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#333;background-color:#f9f9f9}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;background-color:#f9f9f9}#root{width:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;max-width:760px;margin:20px auto;padding:0 15px;line-height:1.6;background-color:#f9f9f9;color:#333}h1{font-size:1.8rem;margin-bottom:.5rem;color:#111;text-align:center}h2{font-size:1.4rem;margin-top:24px;border-bottom:2px solid #ddd;padding-bottom:6px;color:#444}.card{border:1px solid #ddd;border-radius:12px;padding:24px;margin-bottom:20px;background-color:#fff;box-shadow:0 4px 15px #00000014}.input-grid{display:grid;grid-template-columns:1fr;gap:20px}@media(min-width:550px){.input-grid{grid-template-columns:1fr 1fr}.grid-span-2{grid-column:span 2}}.form-group{margin-bottom:0;padding-top:5px}label{display:block;margin-bottom:4px;font-weight:500;font-size:.95rem}input[type=number],input[type=text]{padding:10px;margin-top:4px;width:100%;box-sizing:border-box;border-radius:6px;border:1px solid #ccc;font-size:1rem;transition:border-color .2s}input[type=number]:focus,input[type=text]:focus{border-color:#007aff;outline:none}.optional-note{font-size:.75rem;color:#666;display:inline-block;margin-left:5px}.highlight-container{margin-bottom:15px;padding:12px;background-color:#e6f3ff;border:1px solid #a8caff;border-radius:8px;grid-column:1 / -1}.checkbox-container{display:flex;align-items:center;padding:5px 0;cursor:pointer}.checkbox-container input[type=checkbox]{margin-right:12px;width:16px;height:16px;cursor:pointer}.checkbox-container label{margin-bottom:0;font-weight:600;cursor:pointer;flex-grow:1}.muted{color:#666;font-size:.8rem;margin-top:5px;line-height:1.3}button{padding:12px 20px;border-radius:8px;border:none;cursor:pointer;margin-top:15px;font-size:1rem;font-weight:600;background-color:#007aff;color:#fff;transition:background-color .2s ease,transform .1s ease;width:100%}@media(min-width:550px){button{width:auto}}button:hover{background-color:#005ec4}button:active{transform:scale(.98)}.result-row{font-size:1.1rem}.result-row strong{color:#000}.margin-row{font-weight:700;font-size:1.15rem;color:#007aff}#summary .result-row.partner-price{font-weight:700;font-size:1.2rem;color:#d9534f;margin-top:15px;border-top:1px solid #eee;padding-top:15px}#summary .result-row.unit-price{font-weight:700;font-size:1.1rem;color:#333;margin-bottom:5px;padding-bottom:0}#summary .result-row.final-price{font-size:1.4rem;font-weight:700;margin-top:10px;color:#28a745}.sales-section{border-top:2px solid #007aff;padding-top:10px}.sales-section ul{list-style-type:none;padding-left:10px;margin-top:5px;margin-bottom:15px;font-size:1rem;line-height:1.4}.sales-section ul li{padding:2px 0}#breakdown h3{font-size:1.2rem;margin-top:5px;margin-bottom:5px}#breakdown ul{padding-left:20px}#breakdown ul li{list-style-type:disc}table{width:100%;border-collapse:collapse;margin-top:12px;font-size:.95rem}th,td{border:1px solid #eee;padding:10px 12px;text-align:left}th{background:#eef;color:#007aff}tr:nth-child(2n){background-color:#fcfcfc}td button{padding:8px 14px;font-size:.9rem;margin-top:0;background-color:#f0f0f0;color:#333;border:1px solid #ccc;width:100%}td button:hover{background-color:#e0e0e0}#error-modal{display:flex;align-items:center;justify-content:center;position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;background-color:#00000080;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}#error-modal.hidden{display:none}.modal-content{background-color:#fff;padding:30px;border-radius:12px;box-shadow:0 8px 25px #0006;width:90%;max-width:350px;text-align:center}.modal-content p{font-size:1.1rem;margin-bottom:25px;color:#d9534f;font-weight:600}.modal-content button{background-color:#d9534f;width:auto;padding:10px 20px}