body {
    font-family: Arial, sans-serif;
    background-color: white;
    color: #333;
    align-items: center;
    margin: 20px 40px;
    padding: 20px 40px;
}

nav {
  display: flex;
  justify-content: space-between;
  margin-bottom: 28px;
}

ul {
    list-style-type: none;
}

.logo_rul {
  width: 82px;
  }

.btn_position_nav {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.btn_position {
  margin-top: 40px;
  }
  
.btn_position_pop {
  margin-top: 32px;
  }

.btn_main {
  color: white;
  padding: 10px 20px;
  background-color: #1e1e1e;
  text-decoration: none;
  border: solid 1px #1e1e1e;
  border-radius: 6px;
  cursor: pointer;
  }
  
.btn_main:hover {
  color: #1e1e1e;
  background-color: white;
  border: solid 1px #1e1e1e;
  border-radius: 6px;
  transition: background-color 0.3s;
  }

.container {
  text-align: left;
  display: flex;
  margin-bottom: 40px;
}

.title_main {
  text-align: left;
  margin-top: 80px;
  }
  
.text_main {
  text-align: left;
  }
  
.about_position {
  display: flex;
  justify-content: space-around;
  gap: 20px;
}
  
.text_about {
  text-align: left;
  border-bottom: solid 1px #1e1e1e5c;
  padding-bottom: 10px;
  padding-top: 10px;
  margin-left: 40px;
}

.about_img {
  width: 100%;
  height: fit-content;
  min-width: 500px;
  }

.foot_position {
  display: flex;
  justify-content: space-between;
  }
  
h4 {
  font-size: 24px;
  }
  
.btn_position_foot {
  display: flex;
  justify-content: center;
  padding-top: 70px;
  }
  
.logo_foot {
  max-width: 400px;
  margin-left: 80px;
  }
  
.copy_foot {
  text-align: center;
  margin: 80px 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
    margin: 10px;
    padding: 4px;
    background-color: #1e1e1e;
    border-radius: 10px;
    max-width: 436px;
    margin: 0 auto;
    margin-left: 40px;
}

.square {
    width: 38px;
    height: 38px;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: background-color 0.3s;
    border-radius: 8px;
    border: solid 1px white;
}

.square:hover {
    background-color: #1e1e1e;
    color: #93bbe9;
    border: solid 1px #93bbe9;
}

.controls {
    margin: 20px 0;
    margin-left: 40px;
}

input[type="number"] {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    width: 140px;
    margin-right: 10px;
    font-size: 16px;
    -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#attemptsLeft {
    margin-top: 10px;
    font-size: 18px;
}

.popup {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.popup-content {
  background-color: #fff;
  padding: 38px;
  border-radius: 5px;
  text-align: center;
  max-width: 600px;
  margin: 10px
}

.popup-content h2 {
    margin: 0 0 40px;
}

@media (max-width: 1000px)  {

body {
  margin: 10px 10px;
    padding: 0px;
}

  .container {
  flex-direction: column;
  padding: 4px 10px;
}

.grid {
  margin-left: 0px;
  max-width: 320px;
  margin: 0 auto;
}

.square {
  width: 26px;
  height: 26px;
  }
  
.about_position {
  flex-direction: column;
}

.text_about {
  margin-left: 0px;
}

.foot_position {
  flex-direction: column;
}

.logo_foot {
  max-width: 322px;
  margin-left: 0px;
  display: flex;
  margin: 0 auto;
}

.grid_position {
  margin-top: 60px;
}

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

.about_img {
  min-width: 300px;
  }
}