:root{--bg: #f3f4f6;--panel: #ffffff;--border: #e5e7eb;--border-strong: #d1d5db;--text: #111827;--muted: #6b7280;--primary: #2563eb;--primary-soft: #dbeafe;--danger: #dc2626;--warn: #b45309;--warn-soft: #fef3c7;--radius: 6px;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;font-size:14px;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{overflow:hidden}button{font:inherit;color:inherit}h1,h2,h3,h4{margin:0}kbd{font-family:ui-monospace,monospace;font-size:12px;background:#f3f4f6;border:1px solid var(--border-strong);border-radius:4px;padding:0 4px}.muted{color:var(--muted)}.small{font-size:12px}.grow{flex:1}.btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border:1px solid 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