:root{--red:#f21d2f;--red-dark:#d90e21;--ink:#171719;--muted:#76767f;--line:#e8e8eb;--surface:#f6f6f7;--white:#fff;--sidebar:#141416;--sidebar-soft:#222225}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--surface)}:where(a,button,input,select,textarea):focus-visible{outline-offset:3px;outline:3px solid #f21d2f52}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}body{color:var(--ink);background:var(--surface);-webkit-font-smoothing:antialiased;margin:0;font-family:Pretendard,Noto Sans KR,Apple SD Gothic Neo,Inter,system-ui,sans-serif}button,a{color:inherit;font:inherit}button{cursor:pointer}a{text-decoration:none}.app-shell{min-height:100vh}.sidebar{z-index:10;color:#d7d7dc;background:var(--sidebar);flex-direction:column;width:254px;padding:27px 20px 20px;display:flex;position:fixed;inset:0 auto 0 0;overflow-y:auto}.brand{align-items:center;gap:11px;padding:0 10px 27px;display:flex}.brand-mark{background:var(--red);border-radius:12px 12px 12px 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