:root{font:16px/1.5 system-ui,sans-serif;color:#10243c;background:#f6f9fc}*{box-sizing:border-box}body{margin:0}a{color:#075ca8}button,input,select{font:inherit}.calc-header{display:flex;justify-content:space-between;align-items:center;padding:1rem max(1rem,calc((100vw - 1100px)/2));background:#fff;border-bottom:1px solid #d8e2ec;gap:1rem}.calc-brand{font-weight:800;font-size:1.4rem;text-decoration:none;color:#10243c}nav{display:flex;flex-wrap:wrap;gap:1rem}.calc-main{max-width:1100px;margin:2rem auto;padding:0 1rem;min-height:65vh}h1{font-size:clamp(1.8rem,4vw,2.7rem)}.calc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}.calc-card,.calc-panel,.calc-record{display:block;background:#fff;border:1px solid #d8e2ec;border-radius:14px;padding:1.25rem;box-shadow:0 4px 16px #173a5b0d}.calc-card{text-decoration:none;color:inherit}.calc-card:hover{border-color:#1475bd}.calc-card span{color:#075ca8;font-weight:700}.calc-panel{max-width:680px}.calc-field{display:block;margin:1rem 0}.calc-field input,.calc-field select{display:block;width:100%;max-width:420px;padding:.7rem;border:1px solid #93a8bd;border-radius:8px}.calc-button,button.calc-button{display:inline-block;border:0;border-radius:8px;background:#075ca8;color:#fff;padding:.75rem 1rem;text-decoration:none;cursor:pointer;margin:.35rem .35rem .35rem 0}.calc-button:focus-visible,a:focus-visible{outline:3px solid #ffb627;outline-offset:2px}.calc-secondary{background:#e7f0f8!important;color:#07518f!important}.calc-error{color:#a02020}.calc-result{margin:1.5rem 0}.calc-row{display:flex;justify-content:space-between;border-bottom:1px solid #e5edf3;padding:.4rem 0;gap:1rem}.calc-record{margin:1rem 0}dialog{border:1px solid #adc3d6;border-radius:14px;max-width:min(90vw,460px);padding:1.5rem}dialog::backdrop{background:#06182da8}.calc-close{float:right;border:0;background:transparent;font-size:1.5rem;cursor:pointer}footer{padding:2rem 1rem;text-align:center;color:#5c6d7d}@media(max-width:560px){.calc-header{align-items:flex-start;flex-direction:column}.calc-row{align-items:flex-start}.calc-button{width:100%;text-align:center}}