:root{--app-width: 1600px;--bg: #13161b;--card: #1c2027;--border: #2a3039;--text: #e9ebf0;--muted: #98a1b0;--accent: #3f7fe0;--ok: #37c477;--bad: #f05656;--warn: #f3b63a}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);touch-action:manipulation}button,canvas,.legend{user-select:none;-webkit-user-select:none}body{font-family:-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Pretendard,Noto Sans KR,Segoe UI,sans-serif;font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}.app{max-width:var(--app-width);margin:0 auto;padding:0 16px 16px;min-height:100vh;display:flex;flex-direction:column}.layout{flex:1;align-content:center}.footer{margin-top:auto}.topbar{display:flex;align-items:center;gap:10px;padding:14px 0;margin-bottom:28px;border-bottom:1px solid var(--border)}.brand{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none}.brand 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