:root{color:#292a25;--paper:#f3f0e7;--ink:#292a25;--muted:#6d6e64;--rule:#c9c6b9;--soft:#e7e3d7;--accent:#a64e36;--nav-h:72px;font-synthesis:none;background:#f3f0e7;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{background:var(--paper);scroll-behavior:smooth}body{background:var(--paper);min-width:320px;color:var(--ink);padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom));margin:0}button,input,select,summary{font:inherit}button{color:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}h1,h2,h3,p,dl,dd{margin:0}h1,h2,h3,.result{font-family:Georgia,Times New Roman,serif;font-weight:400}.app{min-height:100dvh}header{border-bottom:1px solid 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