@font-face {
    font-family: 'iransans';
    src: url('IRANSans-web.woff') format('woff-variations'),
    url('IRANSans-web.woff') format('woff');
    font-weight: 100 900;
    font-display: fallback;
}
button { font-family: iransans; }
a { text-decoration: none; }
h1,h2,h3,h4,h5,h5,p,body { margin: 0; }
body {
    color: #17405c;
    font-family: iransans;
    background-color: #fff;
}
section {
    padding: 2rem 125px;
    text-align: center;
}
.hero {
    background: #fff;
}
.title {
    font-size: 58px;
    font-weight: 200;
}
.subtitle {
    font-size: 36px;
}
.text {
    margin: 2rem auto;
    font-size: 20px;
}
.buy-btn {
    cursor: pointer;
    border-radius: 15px;
    background: #667EEA;
    border: none;
    font-size: 16px;
    font-weight: 800;
    color: #fff;
    padding: 12px 32px;
}
.demos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-around;
}
.demo-title {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 26px;
}
.demo-img {
    border-radius: 10px;
    width:  22rem;
    height: 22rem;
    object-fit: cover;
    transition: all 0.3s ease;
}

.demo-img:hover {
    transform: translateY(-6px);
    box-shadow: rgba(0, 0, 0, 0.6) 0 0 25px;
}