:root{--bg: #0f1420;--panel: #171e2e;--panel2: #1e2740;--border: #2a3552;--text: #e6ebf5;--muted: #8b96b0;--accent: #4f8cff;--accent2: #7aa7ff;--green: #34c98e;--red: #ff5f6b;--yellow: #ffc85f;font-size:14px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Malgun Gothic,Segoe UI,system-ui,sans-serif}#root{min-height:100vh}a{color:var(--accent2);text-decoration:none}a:hover{text-decoration:underline}.layout{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--panel);border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;gap:4px}.sidebar .brand{font-size:18px;font-weight:700;color:var(--accent2);padding:8px 10px 16px}.sidebar a{padding:9px 10px;border-radius:8px;color:var(--text)}.sidebar a.active{background:var(--panel2);color:var(--accent2)}.sidebar a:hover{background:var(--panel2);text-decoration:none}.sidebar .spacer{flex:1}.sidebar 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