.auction-calculator{margin:32px 0;padding:26px;border:1px solid #c7d4e2;border-radius:16px;background:#f5f8fc;scroll-margin-top:88px}
.article .auction-calculator h2{margin:0 0 12px;font-size:25px}
.auction-calculator p{margin:12px 0}
.auction-calculator [hidden]{display:none!important}
.calc-modes{border:0;padding:0;margin:22px 0;display:flex;flex-wrap:wrap;gap:10px}
.calc-modes legend{font-weight:700;margin-bottom:8px}
.calc-modes label{display:flex;gap:8px;align-items:center;padding:10px 12px;border:1px solid #b6c3d2;border-radius:8px;background:#fff;cursor:pointer;font-size:15px}
.calc-modes input{accent-color:#b65000;width:17px;height:17px}
.calc-fields{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.calc-field>label{display:block;font-weight:700;margin-bottom:7px}
.calc-input-row{display:flex;gap:7px;align-items:stretch}
.calc-input-row input{min-width:0;width:100%;flex:1}
.calc-input-row input,.calc-input-row select{border:1px solid #8092a7;border-radius:8px;padding:11px 10px;font:inherit;font-size:16px;background:#fff;color:#162331}
.calc-input-row select{width:100px;flex:none}
.calc-input-row [aria-invalid="true"]{border:2px solid #b42318}
.calc-help{font-size:14px;line-height:1.7;color:#526174}
.calc-examples{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:16px 0}
.calc-examples button{border:1px solid #b6c3d2;border-radius:7px;background:#fff;color:#314b69;padding:7px 12px;font:inherit;font-size:14px;cursor:pointer}
.calc-submit{border:0;border-radius:9px;background:#1c324b;color:#fff;padding:12px 24px;min-height:46px;font:inherit;font-weight:800;cursor:pointer}
.calc-submit:hover{background:#2b496a}
.auction-calculator :is(button,input,select):focus-visible{outline:3px solid #2563a6;outline-offset:3px}
.calc-error{color:#a62216;font-weight:700;min-height:0}
.calc-results{margin-top:24px;border-top:1px solid #c8d3df;padding-top:15px}
.calc-result-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.calc-result-card{background:#fff;border:1px solid #c7d4e2;border-radius:12px;padding:18px;min-width:0}
.article .calc-result-card h3{font-size:18px;margin:0 0 8px;color:#263c55}
.calc-result-card output{display:block;font-size:22px;font-weight:800;color:#162b42;overflow-wrap:anywhere;line-height:1.6;margin:8px 0}
.calc-result-label,.calc-result-detail{font-size:14px;color:#526174}
.calc-korean{color:#a84700;font-weight:700}
.calc-difference{font-weight:700;color:#263c55}
.calc-note{font-size:14px;color:#526174;border-top:1px solid #c8d3df;padding-top:16px;margin-top:22px!important}
.calc-negative{color:#a62216;font-weight:700}
@media(max-width:640px){.auction-calculator{padding:20px 14px;margin-left:-4px;margin-right:-4px}.calc-fields,.calc-result-grid{grid-template-columns:1fr}.article .auction-calculator h2{font-size:23px}.calc-result-card output{font-size:21px}.calc-modes label{width:100%}.calc-submit{width:100%}}