:root{--orange:#c5460c;--ink:#242c30;--bg:#f3f4f0;--line:#adb6b4}*{box-sizing:border-box}body{margin:0;display:grid;grid-template-columns:190px minmax(0,1fr);background:var(--bg);color:var(--ink);font:15px/1.7 'Malgun Gothic',sans-serif}a{color:inherit}button,input,select{font:inherit}button{cursor:pointer}:focus-visible{outline:3px solid #14658d;outline-offset:3px}.skip{position:absolute;top:-100px}.skip:focus{top:0;z-index:10;background:white}.rail{background:#e8ebe6;border-right:1px solid var(--line);padding:35px 25px;min-height:100vh}.brand{display:block;font:bold 31px/1.1 'Malgun Gothic',sans-serif;text-decoration:none;letter-spacing:-2px}.brand span{display:block;font:9px/4 Consolas,monospace;letter-spacing:3px}.rail nav{display:flex;flex-direction:column;margin-top:55px;gap:12px}.rail button{text-align:left;border:0;background:transparent;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;color:inherit}.rail button span{font:11px 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p{font-size:13px;max-width:850px}.sources{color:#455a60}footer{padding:20px 0;border-top:1px solid var(--line);font-size:12px;display:flex;justify-content:space-between;gap:15px}.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@media(max-width:900px){body{grid-template-columns:140px minmax(0,1fr)}.rail{padding:25px 18px}main{padding:0 5%}.brand{font-size:27px}.conversion{padding:20px;gap:12px;grid-template-columns:minmax(0,1fr) 45px minmax(0,1fr)}.reference{gap:25px}}@media(max-width:600px){body{display:block}.rail{min-height:0;padding:20px 5%;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:25px}.brand br{display:none}.brand span{line-height:2}.rail nav{margin-top:15px;flex-direction:row;gap:17px;flex-wrap:wrap}.rail button{padding:5px 0;font-size:12px}.rail button span,.rail>p{display:none}header{font-size:10px;padding:15px 0}.intro{padding-top:25px}.conversion{grid-template-columns:1fr;padding:22px}#swap{width:48px;justify-self:center;transform:rotate(90deg)}.formula{padding:15px;flex-direction:column}.formula button{text-align:left}.reference{grid-template-columns:1fr;padding:35px 0;gap:10px}.reference h2 br{display:none}.reference h2{font-size:27px}.reference p:not(.eyebrow){max-width:none}.panel-title{padding:14px}.panel-title span{font-size:8px}footer{flex-direction:column}}

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