:root{--bg:#0c121b;--panel:#111a26;--surface:#151e2a;--surface-2:#1b2634;--ink:#ecf1f7;--muted:#8ca0b4;--line:#ecf1f721;--line-soft:#ecf1f712;--accent:#2fd49a;--accent-soft:#2fd49a1f}*{box-sizing:border-box}html,body{min-height:100%}body{background:var(--bg);color:var(--ink);word-break:keep-all;margin:0;font-family:IBM Plex Sans KR,Pretendard,Apple SD Gothic Neo,Malgun Gothic,sans-serif}button,a{font:inherit}button{color:inherit}:is(button:focus-visible,a:focus-visible){outline:2px solid var(--accent);outline-offset:3px}.app-shell{background:var(--bg);grid-template-columns:272px minmax(0,1fr);min-height:100dvh;display:grid}.sidebar{z-index:20;border-right:1px solid var(--line);background:#0c121bf5;flex-direction:column;height:100dvh;padding:28px 22px 22px;display:flex;position:sticky;top:0}.brand{border:0;border-bottom:1px solid var(--line);text-align:left;cursor:pointer;background:0 0;align-items:center;gap:13px;width:100%;padding:0 4px 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