:root { 
    --primary-color: #252525; 
    --secondary-color: #536390; 
    --text-color: #424242; 
    --background-color: #f1efeb; 
    --heading-color: #292922; 
} 
  
/* Dark theme */
[theme="dark"] { 
    --primary-color: #9A97F3; 
    --secondary-color: #818cab; 
    --text-color: #e1e1ff; 
    --background-color: #4d4d4d; 
    --heading-color: #818cab; 
} 
body { 
    background-color: var(--background-color); 
    color: var(--text-color); 
} 
  
a { 
    color: var(--secondary-color); 
} 
  
p { 
    color: var(--text-color); 
} 
body {
    display: block;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: "Open Sans", Verdana, Geneva, Tahoma, sans-serif;
}
header {
    background-color: #333;
    color:#fff;
    padding: 20px;
    text-align: center;
}
.menu-icon {
    display: none;
}
nav {
    background-color: #333;
  }
  
  nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
  }
  
  nav ul li {
    display: inline;
  }
  
  nav ul li a {
    color: #fff;
    padding: 10px;
    text-decoration: none;
  }
  
  a {
    text-decoration:solid;
    color: black;
  }
  
/* Slider styling */
.theme-switch-container {
    right: 0;
    display: flex; 
    align-items: center; 
} 
  
.theme-slider { 
    display: inline-block; 
    height: 34px; 
    position: relative; 
    width: 60px; 
} 
  
.theme-slider input { 
    display: none; 
} 
  
.slider { 
    background-color: #ccc; 
    bottom: 0; 
    cursor: pointer; 
    left: 0; 
    position: absolute; 
    right: 0; 
    top: 0; 
    transition: .4s; 
} 
  
.slider:before { 
    background-color: #fff; 
    bottom: 4px; 
    content: ""; 
    height: 26px; 
    left: 4px; 
    position: absolute; 
    transition: .4s; 
    width: 26px; 
} 
  
input:checked+.slider { 
    background-color: #66bb6a; 
} 
  
input:checked+.slider:before { 
    transform: translateX(26px); 
} 
  
.slider.round { 
    border-radius: 34px; 
} 
  
.slider.round:before { 
    border-radius: 50%; 
}

  /* Style dla urządzeń mobilnych */
  @media only screen and (max-width: 600px) {
    .menu-icon{
        display: block;
    }
  nav {
    display: none;
    position: absolute;
    top: 40px;
    left: 0;
    background-color: #333;
    width: 100%;
  }
  
  nav ul li {
    display: block;
    text-align: center;
  }
  
  nav ul li a {
    display: block;
    padding: 10px;
    border-bottom: 1px solid #fff;
  }
  
  .menu-icon{
    display: block;
    background-color: #333;
    color: #fff;
    text-align: right;
    padding: 10px;
  }
  }

/*style dla ogolnej strony*/
ul {
    align-items: center;
    text-align: center;
    width: 100%;
}

li {
    display: inline-block;
    overflow: auto;
}
#main {
    display: block;
    position: sticky;
}
#maintenance {
    display:none;
    text-align: center;
    align-items: center;
}
#about {
    display:none;
}
#projects {
    display: none;
}
#skills {
    display: none;
}
#contact {
    display: none;
}
footer {
    background-color: #333;
    color:#fff;
    left:0;
    bottom: 0;
    width: 100%;
    position: fixed;
    text-align: center;
}