/* Ana Renkler ve Değişkenler */
:root {
  --primary-color: #007bff;
  --secondary-color: #6c757d;
  --dark-color: #343a40;
  --light-color: #f8f9fa;
  --white-color: #ffffff;
  --section-padding: 3rem 0;
  --section-margin: 3rem;
}

/* Genel Stiller */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

/* Hero Section Stili */
.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), 
              url('https://images.unsplash.com/photo-1473341304170-971dccb5ac1e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') 
              no-repeat center center;
  background-size: cover;
  height: 500px;
  color: var(--white-color);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

/* Sayfa Başlık Stili */
.page-header {
  background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), 
              url('https://images.unsplash.com/photo-1473341304170-971dccb5ac1e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') 
              no-repeat center center;
  background-size: cover;
  height: 300px;
  color: var(--white-color);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-bottom: var(--section-margin);
}

/* İçerik Bölümü Stili */
.content-section {
  background-color: var(--light-color);
  padding: var(--section-padding);
  margin-bottom: var(--section-margin);
}

/* Özellik Kutuları */
.feature-box {
  text-align: center;
  padding: 2rem;
  margin-bottom: 2rem;
}

.feature-box i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* Başlık Stilleri */
.section-title {
  margin-top: 2rem;
  margin-bottom: 1rem;
  text-align: center;
}

/* Footer Stili */
footer {
  background-color: var(--dark-color);
  color: var(--white-color);
  padding: var(--section-padding);
}

footer a {
  color: var(--white-color);
  text-decoration: none;
  transition: opacity 0.3s;
}

footer a:hover {
  opacity: 0.8;
  color: var(--white-color);
}

/* Responsive Düzenlemeler */
@media (max-width: 768px) {
  .hero {
    height: 400px;
  }
  
  .page-header {
    height: 200px;
  }
  
  .feature-box {
    margin-bottom: 1.5rem;
  }
}