:root{--bg: #061019;--panel: #0b1622;--panel2: #0f1e2c;--border: #1a3348;--green: #8b9dff;--green-dim: #2c3a72;--amber: #f5b942;--text: #cfe3f0;--muted: #7fa4c0}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif}.shell{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;align-items:baseline;gap:12px;padding:10px 18px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,#0d150f,#0a0f0c)}.brand{font-weight:700;font-size:18px;color:var(--green);letter-spacing:.5px;font-family:ui-monospace,monospace;text-shadow:0 0 8px rgba(59,240,122,.4)}.subtitle{font-size:12.5px;color:var(--muted)}.app{display:flex;flex:1;min-height:0}.panel{width:320px;flex-shrink:0;overflow-y:auto;background:var(--panel);border-right:1px solid 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