:root{--green: #2e7d32;--green-dark: #1b5e20;--green-light: #e8f5e9;--orange: #f5a623;--bg: #f5f6f5;--surface: #ffffff;--text: #1c1e1c;--text-muted: #6b726b;--border: #e2e5e2;--danger: #c62828;--tabbar-h: 56px;--maxw: 520px}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Apple SD Gothic Neo,Noto Sans KR,Malgun Gothic,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.5}button{font-family:inherit;cursor:pointer}.app{max-width:var(--maxw);margin:0 auto;min-height:100%;background:var(--bg);position:relative}.screen{display:flex;flex-direction:column;min-height:100vh;padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom,0))}.topbar{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--border);padding:12px 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