* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #1e1e1e;
    
}

header {
  text-align: center;
  padding: 20px;
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
}

.main_back_left {
  position: absolute;
  top: 80px;
  right: -100px;
  width: 400px;
  z-index: -1;
  opacity: 64%;
  }
  
.main_back_right {
  position: absolute;
  left: -100px;
  width: 300px;
  z-index: -1;
  opacity: 54%;
  }

nav {
  display: flex;
  justify-content: space-between;
  padding-bottom: 80px;
  }
  
section {
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
}



.main_logo {
  max-width: 80px;
  }
  


h1 {
    text-transform: uppercase;
    margin-bottom: 32px;
    }
    
h2 {
  text-align: center;
  margin-bottom: 40px;
  }
    
.text_main {
  max-width: 700px;
  padding-bottom: 66px;
  margin: 0 auto;
  text-align: center;
  }
  
.btn_absolute {
  margin-bottom: 100px;
}
  
.btn_main_position {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.btn_main {
    background: #1f1f1f;
    color: white;
      padding: 14px 24px;
    text-decoration: none;
    border: solid 1px #1f1f1f;
      border-radius: 34px;
    transition: background-color 0.3s;
    cursor: pointer; 
    text-transform: uppercase;
}

.btn_main:hover {
    background: white; 
    color: #1f1f1f; 
    border: solid 1px #d0d0d0;
}

.btn_foot_position {
  display: flex;
  justify-content: center;
}

.btn_foot {
    color: white;
      padding: 14px 24px;
    text-decoration: none;
    border: solid 1px white;
      border-radius: 34px;
    transition: background-color 0.3s;
    cursor: pointer; 
    text-transform: uppercase;
}

.btn_foot:hover {
    background: white; 
    color: #1f1f1f; 
    border: solid 1px #d0d0d0;
}


  
.btc_position {
  display: flex;
  justify-content: space-between;
  margin-top: 80px;
  gap: 20px;
  }


.about_title {
  font-size: 20px;
  text-align: left;
  margin-bottom: 10px;
}

.num {
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: solid 1px #00000012;
  margin-left: 22px;
  }

.num_one {
  margin-bottom: 24px;
  padding-top: 38px;
  font-size: 20px;
  }
  

  
.about_img {
  max-width: 502px;
  border-radius: 20px;
  border: solid 1px #0000001f;
  box-shadow: -1px 0px 32px -11px rgba(0,0,0,0.39);
-webkit-box-shadow: -1px 0px 32px -11px rgba(0,0,0,0.39);
-moz-box-shadow: -1px 0px 32px -11px rgba(0,0,0,0.39);
  }
  
.about_position {
  margin-top: 152px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
}






footer {
  background-color: #1e1e1e;
  }

.foot_text {
color: white;
  max-width: 600px;
  text-align: center;
  margin: 0 auto;
  margin-top: 40px;
  margin-bottom: 60px;
  }
  
.copy {
    padding: 40px;
    width: 100%;
    text-align: center;
    color: white;
}

.mobile_about {
  display: none;
  }

.desc_about {
  display: block;
  }
  
.title_foot {
  color: #ffffff;
  padding-top: 59px;
  text-align: center;
}

@media (max-width: 1800px) and (min-width: 1500px) {
.main_back_left {
  right: -300px;
  }
}
@media (max-width: 800px) {

.about_title {
  margin-top: 40px;
}

.about_img {
  max-width: 100%;
  }
  
 .about_position {
  flex-direction: column;
  align-items: center;
  margin-top: 0px;
}
    
 .btc_position {
  flex-direction: column;
  align-items: center;
}

.main_back_left {
  opacity: 18%;
    right: 0px;
}

.main_back_right {
  opacity: 22%;
}
  
h1 {
  font-size: 24px;
}

.btn_absolute {
  margin-bottom: 162px;
}
  
section {
  padding: 10px;
}

.foot_text {
  padding: 10px;
  }
}