:root{color:#071c2d;font-synthesis:none;text-rendering:optimizelegibility;--ink:#071c2d;--muted:#657788;--canvas:#f3f9fd;--paper:#fff;--line:#d9e8f3;--blue:#168fd8;--blue-deep:#0876bb;--blue-soft:#e1f3fe;--green:#21a96b;--green-soft:#e0f7eb;--danger:#b33b36;--danger-soft:#fff0ee;--shadow:0 12px 32px #071c2d14;background:#f3f9fd;font-family:Pretendard,Noto Sans KR,Apple SD Gothic Neo,Inter,system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;min-width:320px}body{background-color:var(--canvas);min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button,a,label{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,fieldset:focus-visible{outline-offset:3px;outline:3px solid #168fd852}label:has(input:focus-visible){outline-offset:3px;outline:3px solid #168fd852}.survey-shell,.loading-shell,.state-shell,.completion-shell{width:min(100%,760px);margin:0 auto;padding:32px 24px 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