:root{--bg: #f1f5f9;--panel: #ffffff;--border: #e2e8f0;--text: #0f172a;--muted: #64748b;--accent: #6366f1;--accent-dark: #4f46e5;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 8px 24px rgba(15, 23, 42, .06)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button{font:inherit;cursor:pointer;border:1px solid var(--border);background:#fff;color:var(--text);padding:7px 13px;border-radius:8px;transition:background .15s,border-color .15s,transform 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