style.css

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

/*! Header-Nav */

/* #header {
    position: relative;
} */

.navbar ul li a {
    transition: all .5s ease-in-out;
    margin-right: 10px;
}

.navbar ul li a:hover {
    transform: scale(1.1);
    color: #fff !important;
}

.navbar ul li a:hover {
    background-color: #992889;
    color: #9090ad;
    border-radius: 5px;
    padding: 5px;
    /* transform: scale(1.05); */
}

#header img {
    width: 250px;
}

#ndnben .icons a {
    background-color: white;
    border: 1px solid #992889;
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    display: inline-block;
    font-size: 1.5rem;
    position: relative;
    margin-right: 1rem;
}

#ndnben .icons a:hover {
    background-color: #992889;
    transition: all .3s ease;
    transform: scale(1.4);
}

#ndnben .icons a:hover i {
    color: #fff;
    transition: all .3s ease;
}

#ndnben .icons a i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.icons i {
    color: #992889;
}

#banner {
    background-color: #000;
}

#banner .container-fluid {
    width: 100%;
    height: 100vh;
    background-image: linear-gradient(rgba(4, 4, 255, 0.3), rgba(255, 255, 0, 0.3)),
    url(./assets/img/header-bg.jpeg);
    opacity: 80%;
    background-size: cover;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

#banner #yazilar h1 {
    font-size: 3rem;
}

#banner #yazilar p {
    font-size: 1.5rem;
    font-weight: bolder;
}

#banner #yazilar a {
    font-size: 1.5rem;
}

#banner #yazilar i {
    font-size: 4rem;
}

#banner #yazilar i:hover {
    color: #c7e0f3;
}

#banner #yazilar a:hover {
    background-color: #fff;
    border: 2px solid #000;
    color: black;
    opacity: 50%;
}



/*! Main */

#ndnben p {
    color: #a1a1a1;
}

img {
    max-width: 100%;
    height: auto;
}

#hizmetler .card {
    box-shadow: 0 10px 10px rgb(40, 40, 40);
}

#hizmetler .card:hover {
    background-color: #659acc;
    border: 2px solid blue;
    color: #fff;
    transition: all .5s ease-in-out;
    transform: scale(1.1);
}

#hizmetler .card:hover p {
    color: #fff;
}

#hizmetler .card:hover i {
    color: #000;
}

#hizmetler .card-text,
#hizmetler i {
    color: #a3a3ab;
}

.card-title {
    border-bottom: 2px solid #992889;
}

.hizmet {
    letter-spacing: 8px;
}

.hizmet2 {
    letter-spacing: 3px;
}

#müsteriler img {
    border-radius: 50%;
    width: 100px;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

#müsteriler, #iletisim {
    background-color: gainsboro;
}

#referanslar ul li a {
    color: #992889;
}

#referanslar ul li a:hover {
    background-color: #992889;
    color: #fff;
}

#referanslar ul li .active {
    background-color: #992889;
}

#referanslar p {
    color: #9090ad;
}

#referanslar i {
    color: #992889;
}

#referanslar2 .card {
    box-shadow: 0 10px 10px rgb(40, 40, 40);
    border: none;
}

.card:hover .overlay {
  transform: scale(1);
  border-radius: 30px;
}

.overlay {
  position: absolute;
  background-color: #252727dc;
  overflow: hidden;
  width: 100%;
  height: 100%;
  transform: scale(0);
  transition: .5s ease;
  box-shadow: 0 10px 20px rgb(40, 40, 40);
}

.text {
  color: white;
  font-size: 2rem;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.soluk {
    color: #a1a1a1;
}

#iletisim .card {
    background-color: gainsboro;
    border: none;
}

#hizmetler .fa-sun,
#müsteriler i,
#referanslar i,
#iletisim i {
    color: #992889;
}

#iletisim form button {
    font-size: 2rem !important;
    box-shadow: 3px 7px 10px rgb(40, 40, 40);
}


/*! FOOTER */

footer .social-media a {
    background-color: white;
    border-radius: 50%;
    border: none;
    width: 3.5rem;
    height: 3.5rem;
    display: inline-block;
    position: relative;
    margin-right: 1rem;
}

footer .social-media a:hover {
    background-color: #d42e2e;
    transition: all .5s ease-in-out;
    transform: scale(1.3);
}

footer .social-media a:hover i {
    color: #fff;
}

footer .social-media a i {
    position: absolute;
    color: #000;
    font-size: 2rem;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}


body {
    position: relative;
}

.ustgit {
    line-height: 70px;
    background-color: #2d57b1;
    color: #fff;
    border-radius: 50%;
    transition: font-size .3 ease;
}

.ustgit:hover {
    background-color: #e17029;
    transform: scale(1.2);
    box-shadow: 2px 3px 10px darkblue;
}

.git1 {
    position: fixed;
    text-align: center;
    width: 60px;
    height: 60px;
    bottom: 87px;
    right: 15px;
}

.git2 {
    position: fixed;
    text-align: center;
    width: 60px;
    height: 60px;
    bottom: 15px;
    right: 15px;
}