* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  text-decoration: none;
}
/* ----------------------    Cover style    --------------------- */
@font-face {
  font-family: 'main';
  src: url(fonts/samim-bold.woff  );
}
@font-face {
  font-family: 'title';
  src: url(fonts/yekan.ttf  );
}
body {
  width: 100%;
  height: 100vh;
  background-image: url(../img/main_back.jpg);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
/* ----------------------    Loading Style    --------------------- */
.loader{
  width: 100vw;
  height: 100vh;
  backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  z-index: 10;
}
.loader--hidden{
  display: none;
}
.spinner {
  position: fixed;
  width: 50px;
  height: 50px;
  display: grid;
  border: 5px solid #00000000;
  border-radius: 50%;
  border-right-color: #ece9e9;
  animation: spinner-a4dj62 1s infinite linear;
}

.spinner::before,
.spinner::after {
  content: "";
  grid-area: 1/1;
  margin: 1.6px;
  border: inherit;
  border-radius: 50%;
  animation: spinner-a4dj62 2s infinite;
}

.spinner::after {
  margin: 6.4px;
  animation-duration: 3s;
}

@keyframes spinner-a4dj62 {
  100% {
     transform: rotate(2turn);
  }
}
/* ----------------------    Particle Js Style    --------------------- */

.particles-js-canvas-el {
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: -1;
  top: 0;
  left: 0;
}
header,
main,
footer {
  width: 100%;
}
.header {
  height: 10%;
}
.main {
  height: 80%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.main .content {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.main .content h1 {
  margin-bottom: 2rem;
  color: aliceblue;
  font-size: 55px;
  font-family: main;
  text-shadow: 1px 2px 10px rgba(0, 0, 0, 0.39);
}
.main .content h3 {
  color: aliceblue;
  font-size: 18px;
  font-family: main;
  margin-bottom: 5rem;
}
.main .content .but_wellcome {
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer {
  height: 10%;
}