:root{--bg: #0f172a;--bg2: #1e293b;--fg: #f1f5f9;--muted: #94a3b8;--accent: #38bdf8;--danger: #ef4444;--success: #22c55e;--border: #334155;font-family:system-ui,-apple-system,Segoe UI,Roboto,Oxygen,Ubuntu,sans-serif;font-size:14px;color-scheme:dark}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%;background:var(--bg);color:var(--fg)}a{color:var(--accent);text-decoration:none}button,input,select,textarea{font:inherit;color:inherit;background:var(--bg2);border:1px solid var(--border);border-radius:6px;padding:8px 12px;outline:none}button{cursor:pointer;background:var(--accent);color:#0f172a;border:none;font-weight:600}button:hover{filter:brightness(1.1)}button.secondary{background:var(--bg2);color:var(--fg);border:1px solid var(--border)}.layout{display:flex;height:100vh}.sidebar{width:240px;background:var(--bg2);border-right:1px solid var(--border);padding:16px;overflow-y:auto}.sidebar h1{font-size:16px;margin:0 0 16px}.sidebar nav a{display:block;padding:8px 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