* {
  padding: 0;
  margin: 0;
  font-family: sans-serif;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
}

.banner {

  background-image: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.8)),url(images/game-console-6603120_1920.jpg);
  height: 100vh;
  width: 100%;
  background-position: center;
  background-size: cover;
  color: white;
  text-align: center;
}

.arkaplan {
  background-image: linear-gradient(rgba(0,0,0,0.8), rgba(0, 0, 0, 0.8)),url(images/man-6018751_1920.jpg);
  height: 100vh;
  width: 100%;
  background-position: center;
  background-size: cover;
  color: white;
  text-align: center;
}

.arkaplan12 {
  background-image: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.8)),url(images/programming-1873854_1920.png);
  height: 100vh;
  width: 100%;
  background-position: center;
  background-size: cover;
  color: white;
  text-align: center;
}

.arkaplan13 {
  background-color: #1a191d;
  background-image: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.8)),url(images/contack.jpg);
  height: 100vh;
  width: 100%;
  background-position: center;
  background-size: cover;
  color: white;
  text-align: center;
}

.projearkaplan {
  background-image: linear-gradient(rgba(0,0,0,0.8), rgba(0,0,0,0.8)),url(images/beyazps.jpg);
  height: 100vh;
  width: 100%;
  background-position: center;
  background-size: cover;
  color: white;
  text-align: center;
}


.banner, .arkaplan, .arkaplan12, .arkaplan13, .projearkaplan {
  height: 100vh;
  width: 100%;
  background-position: center;
  background-size: cover;
  color: white;
  text-align: center;
}

.scrollbar {
  overflow: auto;
  background-color: #DCDCDC;
}

.scrollbar::-webkit-scrollbar {
  display: none;
}

.navbar {
  display: flex;
  width: 90%;
  margin: auto;
  padding: 32px 0;
  align-items: center;
  justify-content: space-between;
}

.logo {
  cursor: pointer;
  border-radius: 50%;
}

.navbar ul li {
  list-style-type: none;
  display: inline-block;
  margin: 0 25px;
}

.navbar ul li a {
  text-decoration: none;
  color: #fff;
}

.navbar ul li a:hover {
  box-shadow: 0px 2px #007bff;
  transition: 0.5s;
}

.privacypolicy, .hakkimda {
  text-align: left;
  margin-left: 100px;
  margin-right: 100px;
}

.content {
  width: 100%;
  position: absolute;
  top: 40%;
  color: white;
  text-align: center;
}

.content h1 {
  font-size: 65px;
}

.content p {
  margin: 20px auto;
}

button {
  width: 200px;
  padding: 15px 0;
  border-radius: 35px;
  margin: 20px;
  text-align: center;
  color: white;
  cursor: pointer;
  font-weight: 600;
  background-color: #007bff;
  font-size: 17px;
}

button:hover {
  color: #2F4F4F;
  transition: 0.5s;
}

.btn {
  position: relative;
  width: 200px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 60px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  letter-spacing: 2px;
  border-top: 0.5px solid rgba(255, 255, 255, 0.35);
  border-left: 0.5px solid rgba(255, 255, 255, 0.35);
  padding-left: 40px;
  transition: 0.5s;
  overflow: hidden;
}

.btn:hover {
  padding-left: 0px;
  padding-right: 40px;
  color: rgba(255, 255, 255, 1);
}

.btn span {
  position: absolute;
  left: 5px;
  width: 50px;
  height: 50px;
  background: #EE9900;
  border-radius: 50%;
  transition: 0.5s ease-in-out;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #1a191d;
  font-size: 1.5em;
}

.btn:hover span {
  left: calc(100% - 55px);
}

.btn:after {
  content: '';
  position: absolute;
  width: 80px;
  height: 100%;
  z-index: 1;
  background: rgba(255, 255, 255, 0.25);
  transform: translateX(-170px) skewX(30deg);
  transition: 0.75s ease-in-out;
}

.btn:hover:after {
  transform: translateX(170px) skewX(-30deg);
}

/* Kartlar */
#section-2, #section-3 {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  margin: 200px 0;
  background-color: #dcdcdc;
}

.card {
  width: 20%;
  box-shadow: 0 5px 9px 0 rgba(0, 0, 0, 0.477);
  border-radius: 6px;
  transition: opacity 0.5s ease;
  cursor: pointer;
}

.card:hover {
  opacity: 0.7;
}

.container {
  padding: 5px 10px;
}

.container p {
  margin: 15px 0;
  padding: 5px;
}

.img1 {
  border-radius: 6px 6px 0 0;
  width: 100%;
}

p {
  font-size: 19px;
}

/* Glow Button */
.glow-on-hover {
  width: 320px;
  height: 150px;
  border: none;
  outline: none;
  color: #fff;
  background-color: #111;
  cursor: pointer;
  position: relative;
  z-index: 0;
  border-radius: 10px;
}

.glow-on-hover::before {
  content: '';
  background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
  position: absolute;
  top: -2px;
  left: -2px;
  background-size: 400%;
  z-index: -1;
  filter: blur(5px);
  width: calc(100% + 4px);
  height: calc(100% + 4px);
  animation: glowing 20s linear infinite;
  opacity: 0;
  transition: opacity .3s ease-in-out;
  border-radius: 10px;
}

.glow-on-hover:hover::before {
  opacity: 1;
}

.glow-on-hover::after {
  z-index: -1;
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: #111;
  left: 0;
  top: 0;
  border-radius: 10px;
}

@keyframes glowing {
  0% {background-position: 0 0;}
  50% {background-position: 400% 0;}
  100% {background-position: 0 0;}
}

/* Media Queries for Mobile */
@media only screen and (max-width: 768px) {
  .content h1 {
      font-size: 8vw;
  }

  .navbar {
      flex-direction: column;
      align-items: center;
  }

  .navbar ul li {
      display: block;
      margin: 10px 0;
  }

  .privacypolicy, .hakkimda {
      margin-left: 20px;
      margin-right: 20px;
  }

  .card {
      width: 90%;
      margin-bottom: 20px;
  }

  .glow-on-hover {
      width: 90%;
      height: 100px;
  }
}