body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #121212;
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
}

header {
  text-align: center;
  padding: 50px 20px;
}

.profile-img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid #00b0ff;
  image-rendering: -webkit-optimize-contrast; /* Safari ve Chrome için */
  image-rendering: crisp-edges;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.subtitle {
  font-size: 1.2rem;
  opacity: 0.7;
}

.section {
  max-width: 800px;
  padding: 40px 20px;
  margin-bottom: 40px;
  background-color: #1e1e1e;
  border-radius: 10px;
  box-shadow: 0 5px 10px rgba(0,0,0,0.5);
  width: 90%;
}

.section h2 {
  margin-bottom: 20px;
  border-bottom: 2px solid #00b0ff;
  display: inline-block;
}

.section ul {
  padding-left: 20px;
}

.section ul li {
  margin-bottom: 10px;
}

a {
  color: #00b0ff;
  text-decoration: none;
}

.contact-btn {
  display: inline-block;
  padding: 12px 20px;
  margin-top: 20px;
  color: #fff;
  background-color: #00b0ff;
  border-radius: 8px;
  text-decoration: none;
  transition: 0.3s;
}

.contact-btn:hover {
  background-color: #0099dd;
}

footer {
  padding: 20px;
  opacity: 0.6;
  text-align: center;
}

@media(max-width:600px){
  h1 { font-size: 2rem; }
  .section { padding: 20px; }
}