*{box-sizing:border-box} :root{--bg:#f3f7f7;--panel:#fff;--ink:#173543;--muted:#617985;--line:#d3e1e5;--teal:#078e87;--teal-soft:#e6f6f3;--danger:#b3261e}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px max(24px,calc((100vw - 1440px)/2));background:var(--panel);border-bottom:1px solid var(--line)}a{color:var(--teal)}.brand{display:flex;gap:12px;align-items:center;color:var(--ink);font-size:24px;font-weight:750;text-decoration:none;line-height:1.3}.brand strong{color:var(--teal)}.brand small{display:block;font-size:9px;letter-spacing:2px;color:var(--muted);margin-top:4px}.brand-icon{background:var(--ink);color:var(--panel);padding:2px 12px;border-radius:12px;font-size:34px}.actions{display:flex;align-items:center;gap:12px}button,input,select{font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:10px 12px;min-width:0}button{cursor:pointer}button:hover{border-color:var(--teal)}:focus-visible{outline:3px solid #dc9453;outline-offset:2px}input,select{width:100%}#languagePicker{position:relative}#languageButton{display:flex;align-items:center;gap:8px}#languagePicker img{width:23px;height:16px;object-fit:cover;border-radius:2px}#languageMenu{position:absolute;inset-inline-end:0;top:calc(100% + 8px);z-index:10;background:var(--panel);border:1px solid var(--line);padding:6px;border-radius:10px;width:195px;max-height:70dvh;overflow:auto;box-shadow:0 8px 25px #0002}#languageMenu button{width:100%;display:flex;gap:10px;align-items:center;border:0;text-align:start}#languageMenu [aria-selected=true]{background:var(--teal-soft)}main{max-width:1440px;margin:auto;padding:30px 24px}.intro{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-bottom:26px}.intro h1{font-size:clamp(26px,3vw,38px);letter-spacing:-1px;margin:4px 0 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button[aria-pressed=true]{background:var(--teal-soft);color:var(--teal);font-weight:750}.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}h2{font-size:20px;margin:0 0 8px}.section-title p{margin:0 0 4px}.pill{font-size:10px;border:1px solid var(--line);padding:5px 9px;border-radius:20px;white-space:nowrap;color:var(--muted)}.input-row{display:grid;grid-template-columns:1fr 1fr auto 1fr;gap:12px;align-items:end}.input-row input,.input-row select{font-size:16px}.swap{font-size:21px;padding:6px 12px}.hint{font-size:12px;color:var(--muted);margin:12px 0}.check{display:flex;align-items:center;gap:8px;color:var(--muted);font-weight:400}.check input{width:auto;accent-color:var(--teal)}.check span{margin:0}.result-box{padding:24px;background:var(--teal-soft);border-radius:10px;margin:18px 0;color:var(--ink);overflow-wrap:anywhere}.result-box>span{font-size:13px;color:var(--muted)}.result-box 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minmax(0,1fr)}.result-box{padding:18px}.result-actions button{font-size:12px}footer{padding:20px 14px}}