:root{--bg:#f5f5f7;--card:#fff;--text:#1d1d1f;--text-secondary:#6e6e73;--accent:#0071e3;--accent-hover:#0077ed;--success:#34c759;--warning:#ff9f0a;--danger:#ff3b30;--border:#d2d2d7;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);--shadow-lg:0 10px 25px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}button{cursor:pointer;font-family:inherit}