* {
    margin: 0px;
    padding: 0px;
    font-family: 'Poppins', sans-serif;
}

body{
    color: white;
    background-color: #231f20;
}

.header {
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(35,31,32,0.5),rgba(35,31,32,0.5)),url(img/banner-6-1.png);
    background-position: center;
    background-size: cover;
    position: relative;
}

nav {
    display: flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: center;
}

nav img {
    width: 150px;
}

.nav-links {
    flex: 1;
    text-align: right;
}

.nav-links ul li {
    list-style: none;
    display: inline-block;
    padding: 8px 12px;
    position: relative;
}

.nav-links ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    text-transform: uppercase;
}

.nav-links ul li::after {
    content:'';
    width: 0%;
    height: 2px;
    background-color:rgb(206, 37, 37);
    display: block;
    margin: 5px auto;
    transition: 0.5s;
}

.nav-links ul li:hover::after {
    width: 100%;
}

.text-box {
    width: 90%;
    color: #fff;
    position: absolute;
    top: 65%;
    left: 50%;
    transform: translate(-50%,-50%);
    text-align: center;
}

.text-box h1 {
    font-size: 62px;
}

.text-box p {
    margin: 10px 0px 40px;
    font-size: 14px;
    color: #fff;
}

.hero-btn {
    display: inline-block;
    text-decoration: none;
    color: #fff;
    border: 1px solid #fff;
    padding: 12px 34px;
    font-size: 13px;
    position: relative;
    cursor: pointer;
}

.hero-btn:hover {
    border: 1px solid rgb(206, 37, 37);
    background-color: rgb(206, 37, 37);
    transition: 1s;
}

nav .fas {
    display: none;
}

@media (max-width: 1200px) {
    .text-box h1 {
        font-size: 30px;
    }

    .nav-links ul li {
        display: block;
    }

    .nav-links {
        position: absolute;
        background-color: rgb(124, 124, 124);
        height: 100vh;
        width: 200px;
        top: 0px;
        right: -200px;
        text-align: left;
        z-index: 2;
        transition: 1s;
    }

    nav .fas {
        display: block;
        color: #fff;
        margin: 10px;
        font-size: 22px;
        cursor: pointer;
    }
}

/*--------------------Urunler-----------------------*/
.course {
    width: 100%;
    margin: auto;
    text-align: center;
    padding-top: 30px;
}

img#urun{
    width: 300px;
    border-radius: 10px;
}

h1 {
    font-size: 36px;
    font-weight: 600;
}

p {
    color: #777;
    font-size: 14px;
    font-weight: 300;
    line-height: 22px;
    padding: 10px;
    color: #615c5c;
}

.row {
    display: flex;
    margin-top: 5%;
    justify-content: space-between;
}

.course-col {
    flex-basis: 30%;
    background-color: #393636;
    border-radius: 10px;
    margin-bottom: 5%;
    margin: 2%;
    padding: 20px 12px;
    box-sizing: border-box;
}

h3 {
    text-align: center;
    font-weight: 600;
    margin: 10px 0;
    color: #b4abab;
}

.course-col:hover {
    box-shadow: 0 0 20px 0px rgba(255, 255, 255, 0.2);
}

@media (max-width: 1200px) {
    .row {
        flex-direction: column;
    }
}
/*--------------------İletişim-----------------------*/
.testimonials{
    width: 80%;
    margin:auto;
    text-align: center;
    padding-top: 30px;
}
.testimonials-col{
    flex-basis:40%;
    border-radius: 10px;
    margin-bottom: 5%;
    text-align: left;
    background-color: #393636;
    padding: 25px;
    cursor: pointer;
}
.testimonials-col img{
    height: 100px;
    margin-left: 5px;
    margin-right: 30px;
    border-radius: 20%;
}
.testimonials-col h3{
    margin-top: 35px;
    text-align: left;
}
.testimonials-col .fas .far{
    color: rgb(247,4,77);
}
@media(max-width: 1200px){
    .testimonials-col img{
        margin-left: 0px;
        margin-right: 15px;
    }
}
/*-------------------- Footer -----------------------*/
.footer{
    width: 100%;
    text-align: center;
    padding: 30px 0px;
}
.footer h4{
    margin-bottom: 25px;
    margin-top: 20px;
    font-weight: 600;
}
.icons .fab{
    color: rgb(247,4,77);
    margin: 0px 13px;
    cursor: pointer;
}
.far{
    color: rgb(247,4,77);
}