.app{width:100%;max-width:600px}.container{background:#fff;border-radius:8px;padding:3rem;box-shadow:0 2px 8px #0000001a}h1{margin-bottom:2rem;font-size:2rem;text-align:center;color:#2c3e50}.form{margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:#555}.form-group input{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem;transition:border-color .2s}.form-group input:focus{outline:none;border-color:#4a90e2;box-shadow:0 0 0 3px #4a90e21a}.submit-button{width:100%;padding:1rem;background-color:#4a90e2;color:#fff;border:none;border-radius:4px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background-color .2s;margin-top:1rem}.submit-button:hover:not(:disabled){background-color:#357abd}.submit-button:disabled{background-color:#ccc;cursor:not-allowed}.error-message{background-color:#fee;color:#c33;padding:1rem;border-radius:4px;margin-bottom:1.5rem;border:1px solid #fcc}.result{margin-top:2rem;padding-top:2rem;border-top:2px solid #eee}.result h2{margin-bottom:1.5rem;font-size:1.5rem;color:#2c3e50}.result-item{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;border-bottom:1px solid #f0f0f0}.result-item:last-child{border-bottom:none}.result-label{font-size:1.1rem;color:#666}.result-value{font-size:1.3rem;font-weight:600;color:#2c3e50}.result-total{font-size:1.5rem;color:#4a90e2}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5;color:#333;line-height:1.6}#root{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}