:root{--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#ede9fe;--text:#374151;--text-secondary:#6b7280;--text-heading:#111827;--bg:#f9fafb;--bg-white:#fff;--border:#e5e7eb;--shadow-sm:0 1px 2px 0 #0000000d;--shadow:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--radius:8px;--sans:"Inter", system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font-family:var(--sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:14px;line-height:1.5}*,:before,:after{box-sizing:border-box}body{margin:0}#root{flex-direction:column;min-height:100vh;display:flex}h1,h2,h3,h4{font-family:var(--sans);color:var(--text-heading);margin:0;font-weight:600}p{margin:0}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}code{font-family:var(--mono);color:var(--text-heading);background:#f3f4f6;border-radius:4px;padding:2px 6px;font-size:12px}