.calculator-container{background-color:#fff;border-radius:12px;max-width:800px;margin:2rem auto;padding:2rem;font-family:Noto Sans KR,sans-serif;box-shadow:0 4px 12px #00000014}.calculator-container h1{text-align:center;color:#333;margin-bottom:1.5rem;font-size:1.8rem}.calculator-container label{color:#444;margin-bottom:.3rem;font-weight:500;display:block}.calculator-container input{border:1px solid #ccc;border-radius:6px;width:100%;margin-bottom:1rem;padding:.5rem;font-size:1rem;transition:border-color .2s}.calculator-container input:focus{border-color:#0070f3;outline:none}.calculator-container table{border-collapse:collapse;width:100%;margin-top:1rem;font-size:.95rem}.calculator-container th,.calculator-container td{border:1px solid #ddd;padding:.6rem .4rem}.calculator-container thead{background-color:#f5f5f5;font-weight:600}.calculator-container tfoot{background-color:#f0f0f0;font-weight:700}@media (max-width:768px){.calculator-container{padding:1rem}.calculator-container table,.calculator-container thead,.calculator-container tbody,.calculator-container th,.calculator-container td,.calculator-container tr{display:block}.calculator-container th,.calculator-container td{text-align:right;padding:.5rem}.calculator-container td:before{content:attr(data-label);float:left;color:#333;font-weight:700}}.tooltip-container{cursor:pointer;margin-left:5px;display:inline-block;position:relative}.tooltip-text{visibility:hidden;opacity:0;color:#fff;text-align:left;z-index:9999;white-space:normal;background-color:#333;border-radius:4px;width:240px;padding:6px;transition:opacity .3s;position:absolute;bottom:125%;left:50%;transform:translate(-50%)}.tooltip-container:hover .tooltip-text{visibility:visible;opacity:1}