html, body {
    margin: 0;
    padding: 0;
    font-family: sans-serif;
    scroll-behavior: smooth;
    background-color: #ffffff;
  }
  
  .hero-section {
    height: 100vh;
    background: url('../media/demiryolu.png') no-repeat center center fixed;
    background-size: cover;
    position: relative;
  }
  
  .header-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 110px;
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    z-index: 100;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  }
  
  .language-switch a {
    margin-left: 5px;
  }
  
  .content-section {
    padding: 60px 20px;
    background-color: #F3F3F3;
    border-radius: 8px;
    border: 1px solid #ccc;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    margin-bottom: 60px;
  }
  
  .section-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1f4e79;
    margin-bottom: 25px;
    text-align: left;
    border: none;
  }
  
  .contact-icon {
    color: #1f4e79;
    margin-right: 10px;
  }
  
  .contact-line {
    margin-bottom: 10px;
  }
  
  footer {
    background: #1f1f1f;
    color: white;
    padding: 20px 0;
  }
  
  footer .social-icons a {
    color: white;
    margin: 0 10px;
    font-size: 1.4rem;
  }
  
  img.responsive-img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto 20px auto;
    border-radius: 6px;
  }
  
  iframe.map-embed {
    width: 100%;
    max-width: 850px;
    height: 425px;
    border: none;
    border-radius: 6px;
    margin: 0 auto 20px auto;
    display: block;
  }