*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--primary:#4f46e5;--primary-dark:#3730a3;--primary-light:#818cf8;--secondary:#06b6d4;--success:#22c55e;--danger:#ef4444;--warning:#f59e0b;--bg:#f1f5f9;--card-bg:#fff;--text:#1e293b;--text-muted:#64748b;--border:#e2e8f0;--shadow:0 4px 24px rgba(79,70,229,.08);--radius:16px;--radius-sm:8px}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.container{max-width:800px;margin:0 auto;padding:0 20px}