*,
*::before,
*::after {
    box-sizing: border-box;
}

:root {
  --ff-primary: 'Source Sans Pro', sans-serif;
  --ff-secondary: 'Source Code Pro', monospace;
  
  --fw-reg: 300;
  --fw-bold: 900;
  
  --clr-light: #fff;
  --clr-dark: #303030;
  --clr-accent: #000000;
  --clr-accent-bb: #CF8F2E;
  
  --fs-h1: 3rem;
  --fs-h2: 3rem;
  --fs-h3: 1.25rem;
  --fs-body: 1rem;
  
  --bs: 0.25em 0.25em 0.75em rgba(0,0,0,.25),
        0.125em 0.125em 0.25em rgba(0,0,0,.15);
}

@media (min-width: 800px) {
  :root {
      --fs-h1: 4.5rem;
      --fs-h2: 3.5rem;
      --fs-h3: 1.5rem;
      --fs-body: 1.5rem;
  }
  
}

html{
  scroll-behavior: smooth;
}

body {
  /* background-attachment: fixed;   */
  margin: 0;
  font-family: var(--ff-primary);
  font-size: var(--fs-body);
  line-height: 1.6;
}

section {
  padding: 5em 2em;
}

img {
  display: block;
  max-width: 100%;
}

a,
h1,
h2,
h3 {
  line-height: 1;
  /* margin: 0; */
  color: var(--clr-accent);
}
h1 { font-size: var(--fs-h1) }
h2 { font-size: var(--fs-h2) }
h3 { font-size: var(--fs-h3); color: white;}
hr {
  height: 1px;
  background-color: rgb(0, 0, 0);
  border: none;
}
.elements{
  color: #999999;
  margin-top: 15px;
  margin-bottom: 15px;
}


.nav {
  overflow: hidden;
}

.nav-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: rgb(39, 39, 39);
}

.nav-item{
  float: right;
}

.nav a {
  display: block;
  color: white;
  text-align: center;
  padding: 15px 15px;
  text-decoration: none;
  font-size: 25px;
}

.nav-link:hover {
  color: gray;
}

.home{
  position: relative;
  text-align: center;
}

.centered {
  position: absolute;
  top: 63%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 200%;
  text-decoration: none;
  color: white;
  border: 1px solid black;
  background-color: rgb(17, 38, 41);
  padding: 15px 16px;
}

.centered:hover{
  background-color: rgb(146, 146, 146);
}

.about{
  background-color: rgb(39, 39, 39);
  color: white;
}

.header{
  text-align: center;
  color: #cc0000;
}

.service{
  background-color: rgb(201, 201, 201);
  /* background-color: rgba(17,17,25,255); */
  color: black;
}

.costumers{
  background-color: rgb(68, 68, 68);
  color: white;
}

.contact {
  background-color: rgb(201, 201, 201);

}

.service h3{
  color: black;
}


.gototpbtn{
  position: fixed;
  width: 50px;
  height: 50px;
  bottom: 10px;
  right: 30px;
  border: 1px solid white;
  text-align: center;
  line-height: 50px;
  color: white;
}