:root,
:root.dark {
  --bg-color: #121212;
  --main-color: #222;
  --accent-color: #333;
  --hover-color: #444;
  --mil-color: #777;
  --text-color: #FFF;
  --warn-color: #FF0000;
}
:root.light {
  --bg-color: #EDEDED;
  --main-color: #DDD;
  --accent-color: #CCC;
  --hover-color: #BBB;
  --mil-color: #888;
  --text-color: #000;
  --warn-color: #FF0000;
}

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

body {
  font-family: Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  -webkit-transition: background-color .4s;
  transition: background-color .4s;
}

header {
  background-color: var(--main-color);
  padding: 25px;
  border-radius: 0 0 24px 24px;
  -webkit-transition: background-color .4s;
  transition: background-color .4s;
}

.title {
  font-weight: bold;
  margin-right: 10px;
  font-size: 30px;
  line-height: 0;
  -webkit-transition: .4s;
  transition: color .4s;
}

.title:hover {
  -webkit-transition: background-color .4s;
  transition: background-color .4s;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
}

nav ul li {
  display: inline-block;
  margin-right: 10px;
}

nav ul li a {
  color: var(--text-color);
  text-decoration: none;
  -webkit-transition: color .4s;
  transition: color .4s;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding-inline: 20px;
}

.container p {
  padding-block-end: 16px;
  -webkit-transition: color .4s;
  transition: color .4s;
}

section {
  padding: 30px 0;
}

section:nth-of-type(1) {
  padding-block-end: 0;
}

section#about {
  padding-block: 0;
}

section#gallery {
  padding-block-start: 5px;
}

h1, h2 {
  color: var(--text-color);
  margin-bottom: 20px;
  -webkit-transition: .4s;
  transition: .4s;
}

.titler {
  font-weight: 1;
  font-size: 35px;
}

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

.gallery img {
  width: 30%;
  margin-bottom: 20px;
  border-radius: 24px;
  cursor: pointer;
  -webkit-transition: .4s;
  transition: .4s;
}

.gallery img:hover {
  cursor: pointer;
  -webkit-transition: .4s;
  transition: .4s;
  box-shadow: 0 5px 24px rgba(0, 0, 255, 0.5);
  transform: translateY(-5px);
}

footer {
  background-color: var(--main-color);
  padding: 20px;
  text-align: center;
  position: fixed;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 50px;
  text-align: center;
  border-radius: 20px 20px 0 0;
  -webkit-transition: background-color .4s;
  transition: background-color .4s;
}

footer p {
  color: var(--text-color);
  font-family: Helvetica, Arial, sans-serif;
  margin: 10;
  -webkit-transition: color .4s;
  transition: color .4s;
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
  position: absolute;
  top: 15px;
  right: 15px;
}

.switch input {
  display: none;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--accent-color);
  -webkit-transition: .4s;
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: var(--mil-color);
  -webkit-transition: .4s;
  transition: .4s;
  border-radius: 50%
}

input:focus + .slider {
  box-shadow: 0 0 1px #2196F3;
}

input:checked + .slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}

#prefooter {
  padding: 18px;
}