:root{--bg:#0b1220;--panel:#111827;--text:#e5e7eb;--muted:#94a3b8;--primary:#60a5fa;--border:#1f2937}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--primary);text-decoration:none}input,select,button{background:#0f172a;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:8px}button{cursor:pointer}code,pre{background:#0f172a;border:1px solid var(--border);border-radius:6px;padding:8px}.sidebar{width:190px;background:var(--panel);border-right:1px solid var(--border);padding:12px}.nav a{padding:6px 8px;border-radius:6px}.nav a.active{background:#0f172a}.kpi{border:1px solid var(--border);border-radius:10px;padding:16px;background:#0f172a}.kpi .title{color:var(--muted)}.kpi .value{font-size:28px;font-weight:700}button[title="Open sidebar"]:hover,button[title="Close sidebar"]:hover{background:#334155;color:#f1f5f9}button:hover{border-color:#60a5fa}