.src-calculator{max-width:600px;margin:0 auto;padding:20px;border:1px solid #ddd;border-radius:8px;background:#fafafa;font-family:inherit}.src-calculator label{font-weight:600;display:block;margin-bottom:4px}.src-calculator select,.src-calculator input[type="text"],.src-calculator input[type="file"]{width:100%;padding:8px;margin-bottom:12px;box-sizing:border-box}.src-calculator button{background:#2271b1;color:#fff;border:none;padding:10px 20px;border-radius:4px;cursor:pointer;font-size:15px}.src-calculator button:disabled{opacity:.6;cursor:not-allowed}#src-result{margin-top:20px;padding:15px;background:#fff;border:1px solid #e0e0e0;border-radius:6px}.src-error{color:#c0392b;font-weight:600}.src-warning{color:#966a00;font-size:13px;background:#fff8e5;padding:8px;border-radius:4px;margin-top:10px}.src-disclaimer{font-size:12px;color:#777;margin-top:15px}