:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#0f172a;background-color:#f8fafc}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:linear-gradient(180deg,#f8fafc,#e2e8f0)}a{color:inherit;text-decoration:none}button{cursor:pointer}.container{max-width:1100px;margin:0 auto;padding:1rem}.card{background:#fff;border-radius:12px;border:1px solid #e2e8f0;box-shadow:0 10px 30px #0f172a0d;padding:1rem}.grid{display:grid;gap:1rem}.grid-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.btn{border:none;background:#111827;color:#fff;padding:.75rem 1rem;border-radius:8px;font-weight:600}.btn.secondary{background:#e2e8f0;color:#111827}