:root{color:#171914;font-synthesis:none;text-rendering:optimizelegibility;--ink:#171914;--muted:#6d7067;--line:#deddd5;--surface:#fffefa;--accent:#e6ff47;--accent-hover:#d8f02f;--danger:#a53225;background:#f5f3ed;font-family:Noto Sans JP,Hiragino Kaku Gothic ProN,Yu Gothic,sans-serif}*{box-sizing:border-box}html{background:#f5f3ed;min-width:320px}body{min-width:320px;min-height:100vh;margin:0}button,input{font:inherit;-webkit-tap-highlight-color:transparent}.app-shell{flex-direction:column;min-height:100vh;display:flex}main{flex:1;width:min(100% - 32px,720px);margin:0 auto}.editor{padding:54px 0 38px}.complete{border-top:1px solid var(--line);padding:40px 0 72px;scroll-margin-top:20px}.intro{text-align:center;margin-bottom:36px}.section-kicker{color:#4b5840;letter-spacing:.14em;text-transform:uppercase;margin:0 0 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