*{box-sizing:border-box}
a.btn{display:inline-block;padding:10px 16px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;text-decoration:none;font-weight:700;box-shadow:0 8px 20px rgba(0,102,255,.35)}
a.btn:hover{filter:brightness(1.08) saturate(1.1);transform:translateY(-1px)}