@font-face {
    font-family: 'IRANYekan';
    src: url('fonts/iranyekan_light.woff2') format('woff2');
    font-weight: 300;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'IRANYekan';
    src: url('fonts/iranyekan.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'IRANYekan';
    src: url('fonts/iranyekan_bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

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

body{
    font-family:'IRANYekan',Tahoma,sans-serif;
    font-weight:400;
    background:#fff;
    color:#333;
    line-height:1.9;
    direction: rtl;
    text-align: right;
}

.container{
width:90%;
max-width:1200px;
margin:auto;
}

header{
color:#fff;
padding:90px 20px;
text-align:center;
}

header h1{
font-size:48px;
margin-bottom:15px;
}

.subtitle{
font-size:22px;
margin-bottom:35px;
color:#ddd;
}

.hero{
    min-height:100vh;

    background-size:cover;
    background-position:center;

    display:flex;
    align-items:center;

    position:relative;
}

.btn{
display:inline-block;
background:#e53935;
color:#fff;
padding:15px 35px;
text-decoration:none;
border-radius:6px;
transition:.3s;
}

.btn:hover{
background:#b71c1c;
}

section{
padding:70px 0;
}

section h2{
text-align:center;
margin-bottom:40px;
font-size:34px;
color:#222;
}

.cards{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:25px;
}

.card{
background:#fff;
padding:25px;
border-radius:12px;
box-shadow:0 5px 15px rgba(0,0,0,.08);
transition:.3s;
}

.card:hover{
transform:translateY(-6px);
}

.card h3{
margin-bottom:15px;
color:#d32f2f;
}

#about,
#software,
#contact{
background:#fff;
}

#contact p{
text-align:center;
margin:12px 0;
font-size:18px;
}

footer{
background:#111;
color:#fff;
text-align:center;
padding:25px;
margin-top:40px;
}

@media(max-width:768px){

header h1{
font-size:34px;
}

.subtitle{
font-size:18px;
}

section h2{
font-size:28px;
}

}
h1,h2,h3,h4,h5,h6{
    font-weight:700;
}

p{
    font-weight:400;
}
.slider-btn{

position:absolute;

top:50%;

transform:translateY(-50%);

background:rgba(0,0,0,.4);

color:white;

border:none;

font-size:35px;

width:50px;

height:50px;

cursor:pointer;

border-radius:50%;

z-index:10;

}


.prev{
right:30px;
}


.next{
left:30px;
}