/* start basics */
* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
:root {
  --das-color: #2dcc2d;
  --der-color: #0068e4;
  --die-color: #ce0000;
  --dark-main: #03a9f4;
  --light-main: #03a9f43d;
  --dark-grey: #ddd;
  --light-grey: #eee;
  --black-color: #000000;
  --white-color: #fff;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "Dosis", sans-serif;
  font-size: 20px;
  font-weight: 400;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}
a {
  text-decoration: none;
  color: #333;
}
ul {
  list-style: none;
}
.container {
  padding-left: 20px;
  padding-right: 20px;
  margin-left: auto;
  margin-right: auto;
}
/* Small */
@media (min-width: 768px) {
  .container {
    width: 750px;
  }
}
/* Medium */
@media (min-width: 992px) {
  .container {
    width: 970px;
  }
}
/* Large */
@media (min-width: 1200px) {
  .container {
    width: 1170px;
  }
}
/* end basics */
/* starting header */
header {
  background-color: var(--dark-grey); 
  color: var(--black-color); 
  position: fixed;
  width: 100%;
  z-index: 9999;
}
header .container {
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header a.lo {
  display: flex;
}
header a.lo h1 {
  color: var(--dark-main);
  height: 38px;
  line-height: 38px;
}
/* header a img {
  width: 70px;
} */
header .burger {
  display: none;
  cursor: pointer;
}
header .burger .line {
  width: 25px;
  height: 3px;
  background-color: var(--dark-main);
  margin: 5px;
  transition: all 0.3s ease;
}
header .burger.open .line:nth-child(1) {
  transform: rotate(45deg);
  background-color: var(--black-color);
  position: relative;
  top: 8px; 
}
header .burger.open .line:nth-child(2) {
  opacity: 0;
}
header .burger.open .line:nth-child(3) {
  transform: rotate(-45deg);
  background-color: var(--black-color);
  position: relative;
  top: -8px; 
}
header ul {
  list-style: none;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}
header ul li {
  padding: 5px;
  border-radius: 5px;
  margin: 0 5px;
  transition: all 0.3s ease;
}
header ul li a {
  text-decoration: none;
  transition: all 0.3s ease; 
  display: block;
}
header ul li a img {
  width: 20px;
  height: 20px;
  vertical-align: middle;
}
header ul li:hover {
  background-color: var(--light-main);
}
@media (max-width: 768px) {
  header .burger {
      display: block;
  }
  header ul {
    display: flex;
    flex-direction: column;
    right: -300px;
    transition: right 0.5s ease;
    position: absolute;
    top: 70px;
    background: var(--light-grey);
    /* width: 100%; */
    padding: 7px 0;
    z-index: 999;
    height: 100vh;
    width: 280px;
    justify-content: flex-start;
    box-shadow: -10px 0 15px -5px rgba(0, 0, 0, 0.3);
  }
  header ul.active {
    right: 0;
  }
  header ul li {
    width: 90%;
    text-align: center;
    padding: 7px;
  }
}
/* ending header */