.calculator{max-width:600px;margin:60px auto 0;background:#fff;border-radius:12px;box-shadow:0 6px 32px rgba(50,60,90,8%);padding:32px 32px 24px;text-align:center;font-size:1.4rem}.calculator h1{font-size:2.2rem;font-weight:700;color:#466983;margin-bottom:24px}.input-group{display:flex;flex-direction:column;gap:0;margin-bottom:24px}.input-group label{font-size:1.2rem;color:#b2b2b2;font-weight:500;margin-top:24px;margin-bottom:0;text-align:left}.input-group input[type=number]{width:100%;font-size:1.2rem;padding:12px 16px;border:1.5px solid #e0e0e0;border-radius:7px;background:#fafbfc;color:#444;margin-top:8px;box-sizing:border-box;transition:border-color .2s}.input-group input[type=number]:focus{border-color:#466983;outline:none}.result{margin-top:32px;font-size:2rem;font-weight:700;color:#466983;letter-spacing:.5px}