@font-face {
    font-family: 'zain';
    src: url("../Fonts/Zain-Black.ttf");
}
body {
  margin: 0;
  direction: rtl;
  font-family: 'zain', sans-serif;
}
#bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

#bg .slide {
  position: absolute;
  inset: 0;

  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  opacity: 0;
  transition: opacity 4s ease-in-out; /* نرمی کراس‌فید */
}

#bg .slide.active {
  opacity: 1;
}

a
{
    text-decoration: none;
}
.header
{
    width: 100%;
    padding: 10dvw 0px 15dvw 0px;
}
.header h1
{
    font-size: 12dvw;
    text-align: center;
    color: white;
    padding: 0px;
    margin: 0px;
    color: #fff;
    text-shadow:
        0 2px 6px rgba(0, 0, 0, 0.8),
        0 8px 24px rgba(0, 0, 0, 0.5);
}
.header h2
{
    font-size: 3dvw;
    text-align: center;
    color: white;
    padding: 0px;
    margin: 0px;
    color: #fff;
    text-shadow:
        0 2px 6px rgba(0, 0, 0, 0.8),
        0 8px 24px rgba(0, 0, 0, 0.5);
}
.main
{
    width: 90%;
    margin: auto;
    background: #ffffff90;
    border-radius: 10px 10px 0px 0px;
    
}
.main .menu
{
    text-align: center;
    margin: auto;
    width: 70%;
}
.main .menu td
{
    width: 25%;
    padding: 20px 0px;
    transition: 500ms;
    font-size: 20px;
    border-left: 1px solid #ffffff90;
    border-right: 1px solid #ffffff90;
}
.main .menu td:hover
{
    background: #00000080;
    border-radius: 15px;
    color: white;
    border-left:1px solid white;
    border-right:1px solid white;

}
.body
{
    background: #ffffffdd;
    width: 90%;
    margin: auto;
    border-radius: 1dvw;
    padding: 60px 0px;
}
.body .datalogger
{
    width: 90%;
    margin: auto;
}
.body .datalogger .img
{
    width: 40%;
}
.body .datalogger .img img
{
    width: 100%;
}
.body .datalogger .text
{
    width: 60%;
    vertical-align: top;
    padding-right: 2dvw;
}
.body .datalogger .text .title
{
    margin: 0px;
    padding: 1dvw;
    font-size: 2dvw;
}
.body .datalogger .text .parag
{
    margin: 0px;
    padding: 1dvw 2dvw;
    font-size: 1.5dvw;
}
.body .software
{
    width: 90%;
    margin: auto;
}
.body .software .img
{
    width: 40%;
}
.body .software .img img
{
    width: 100%;
}
.body .software .text
{
    width: 60%;
    vertical-align: top;
    padding-left: 2dvw;
}
.body .software .text .title
{
    margin: 0px;
    padding: 1dvw;
    font-size: 2dvw;
}
.body .software .text .parag
{
    margin: 0px;
    padding: 1dvw 2dvw;
    font-size: 1.5dvw;
}
.vacant
{
    width: 100%;
    height: 30dvh;
}
.foother
{
    width: 90%;
    margin: auto;
    height: 40dvh;
    background: #ffffff20;
}